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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-09 14:16:38 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-09 14:16:38 -0400
commitea1990c3796e7550e6f240983f2d1b8e5ecf3891 (patch)
treec253cf0dc315cbc0716f422b41abea70053601be
parent335053fe8c94f50c7f1cd7011b3088547480df3c (diff)
parent88e670fe9d240c751fd9735ae3ee2906ed68e63d (diff)
Merge tag 'for_3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
Kishon writes: Add new PHY drivers for SATA and USB in exynos, for USB in sunxi, and a multi-purpose PHY in APM, all adapted to generic PHY framework. Adapted USB3 PHY driver in OMAP to generic PHY driver and also used the same driver for SATA in OMAP. It also includes miscellaneous cleanups and fixes.
Diffstat
-rw-r--r--Documentation/devicetree/bindings/phy/apm-xgene-phy.txt79
-rw-r--r--Documentation/devicetree/bindings/phy/samsung-phy.txt54
-rw-r--r--Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt26
-rw-r--r--Documentation/phy/samsung-usb2.txt135
-rw-r--r--drivers/phy/Kconfig107
-rw-r--r--drivers/phy/Makefile9
-rw-r--r--drivers/phy/phy-bcm-kona-usb2.c4
-rw-r--r--drivers/phy/phy-core.c76
-rw-r--r--drivers/phy/phy-exynos4210-usb2.c261
-rw-r--r--drivers/phy/phy-exynos4x12-usb2.c328
-rw-r--r--drivers/phy/phy-exynos5250-sata.c251
-rw-r--r--drivers/phy/phy-exynos5250-usb2.c404
-rw-r--r--drivers/phy/phy-omap-control.c (renamed from drivers/usb/phy/phy-omap-control.c)169
-rw-r--r--drivers/phy/phy-omap-usb2.c131
-rw-r--r--drivers/phy/phy-samsung-usb2.c228
-rw-r--r--drivers/phy/phy-samsung-usb2.h67
-rw-r--r--drivers/phy/phy-sun4i-usb.c331
-rw-r--r--drivers/phy/phy-ti-pipe3.c470
-rw-r--r--drivers/phy/phy-twl4030-usb.c6
-rw-r--r--drivers/phy/phy-xgene.c1750
-rw-r--r--drivers/usb/musb/omap2430.c2
-rw-r--r--drivers/usb/phy/Kconfig21
-rw-r--r--drivers/usb/phy/Makefile2
-rw-r--r--drivers/usb/phy/phy-omap-usb3.c361
-rw-r--r--drivers/usb/phy/phy-twl6030-usb.c2
-rw-r--r--include/linux/phy/omap_control_phy.h (renamed from include/linux/usb/omap_control_usb.h)36
-rw-r--r--include/linux/phy/omap_usb.h (renamed from include/linux/usb/omap_usb.h)14
-rw-r--r--include/linux/phy/phy.h15
28 files changed, 4792 insertions, 547 deletions
diff --git a/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt b/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt
new file mode 100644
index 000000000000..5f3a65a9dd88
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt
@@ -0,0 +1,79 @@
1* APM X-Gene 15Gbps Multi-purpose PHY nodes
2
3PHY nodes are defined to describe on-chip 15Gbps Multi-purpose PHY. Each
4PHY (pair of lanes) has its own node.
5
6Required properties:
7- compatible : Shall be "apm,xgene-phy".
8- reg : PHY memory resource is the SDS PHY access resource.
9- #phy-cells : Shall be 1 as it expects one argument for setting
10 the mode of the PHY. Possible values are 0 (SATA),
11 1 (SGMII), 2 (PCIe), 3 (USB), and 4 (XFI).
12
13Optional properties:
14- status : Shall be "ok" if enabled or "disabled" if disabled.
15 Default is "ok".
16- clocks : Reference to the clock entry.
17- apm,tx-eye-tuning : Manual control to fine tune the capture of the serial
18 bit lines from the automatic calibrated position.
19 Two set of 3-tuple setting for each (up to 3)
20 supported link speed on the host. Range from 0 to
21 127 in unit of one bit period. Default is 10.
22- apm,tx-eye-direction : Eye tuning manual control direction. 0 means sample
23 data earlier than the nominal sampling point. 1 means
24 sample data later than the nominal sampling point.
25 Two set of 3-tuple setting for each (up to 3)
26 supported link speed on the host. Default is 0.
27- apm,tx-boost-gain : Frequency boost AC (LSB 3-bit) and DC (2-bit)
28 gain control. Two set of 3-tuple setting for each
29 (up to 3) supported link speed on the host. Range is
30 between 0 to 31 in unit of dB. Default is 3.
31- apm,tx-amplitude : Amplitude control. Two set of 3-tuple setting for
32 each (up to 3) supported link speed on the host.
33 Range is between 0 to 199500 in unit of uV.
34 Default is 199500 uV.
35- apm,tx-pre-cursor1 : 1st pre-cursor emphasis taps control. Two set of
36 3-tuple setting for each (up to 3) supported link
37 speed on the host. Range is 0 to 273000 in unit of
38 uV. Default is 0.
39- apm,tx-pre-cursor2 : 2st pre-cursor emphasis taps control. Two set of
40 3-tuple setting for each (up to 3) supported link
41 speed on the host. Range is 0 to 127400 in unit uV.
42 Default is 0x0.
43- apm,tx-post-cursor : Post-cursor emphasis taps control. Two set of
44 3-tuple setting for Gen1, Gen2, and Gen3. Range is
45 between 0 to 0x1f in unit of 18.2mV. Default is 0xf.
46- apm,tx-speed : Tx operating speed. One set of 3-tuple for each
47 supported link speed on the host.
48 0 = 1-2Gbps
49 1 = 2-4Gbps (1st tuple default)
50 2 = 4-8Gbps
51 3 = 8-15Gbps (2nd tuple default)
52 4 = 2.5-4Gbps
53 5 = 4-5Gbps
54 6 = 5-6Gbps
55 7 = 6-16Gbps (3rd tuple default)
56
57NOTE: PHY override parameters are board specific setting.
58
59Example:
60 phy1: phy@1f21a000 {
61 compatible = "apm,xgene-phy";
62 reg = <0x0 0x1f21a000 0x0 0x100>;
63 #phy-cells = <1>;
64 status = "disabled";
65 };
66
67 phy2: phy@1f22a000 {
68 compatible = "apm,xgene-phy";
69 reg = <0x0 0x1f22a000 0x0 0x100>;
70 #phy-cells = <1>;
71 status = "ok";
72 };
73
74 phy3: phy@1f23a000 {
75 compatible = "apm,xgene-phy";
76 reg = <0x0 0x1f23a000 0x0 0x100>;
77 #phy-cells = <1>;
78 status = "ok";
79 };
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index c0fccaa1671e..28f9edb8f19c 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -20,3 +20,57 @@ Required properties:
20- compatible : should be "samsung,exynos5250-dp-video-phy"; 20- compatible : should be "samsung,exynos5250-dp-video-phy";
21- reg : offset and length of the Display Port PHY register set; 21- reg : offset and length of the Display Port PHY register set;
22- #phy-cells : from the generic PHY bindings, must be 0; 22- #phy-cells : from the generic PHY bindings, must be 0;
23
24Samsung S5P/EXYNOS SoC series USB PHY
25-------------------------------------------------
26
27Required properties:
28- compatible : should be one of the listed compatibles:
29 - "samsung,exynos4210-usb2-phy"
30 - "samsung,exynos4x12-usb2-phy"
31 - "samsung,exynos5250-usb2-phy"
32- reg : a list of registers used by phy driver
33 - first and obligatory is the location of phy modules registers
34- samsung,sysreg-phandle - handle to syscon used to control the system registers
35- samsung,pmureg-phandle - handle to syscon used to control PMU registers
36- #phy-cells : from the generic phy bindings, must be 1;
37- clocks and clock-names:
38 - the "phy" clock is required by the phy module, used as a gate
39 - the "ref" clock is used to get the rate of the clock provided to the
40 PHY module
41
42The first phandle argument in the PHY specifier identifies the PHY, its
43meaning is compatible dependent. For the currently supported SoCs (Exynos 4210
44and Exynos 4212) it is as follows:
45 0 - USB device ("device"),
46 1 - USB host ("host"),
47 2 - HSIC0 ("hsic0"),
48 3 - HSIC1 ("hsic1"),
49
50Exynos 4210 and Exynos 4212 use mode switching and require that mode switch
51register is supplied.
52
53Example:
54
55For Exynos 4412 (compatible with Exynos 4212):
56
57usbphy: phy@125b0000 {
58 compatible = "samsung,exynos4x12-usb2-phy";
59 reg = <0x125b0000 0x100>;
60 clocks = <&clock 305>, <&clock 2>;
61 clock-names = "phy", "ref";
62 status = "okay";
63 #phy-cells = <1>;
64 samsung,sysreg-phandle = <&sys_reg>;
65 samsung,pmureg-phandle = <&pmu_reg>;
66};
67
68Then the PHY can be used in other nodes such as:
69
70phy-consumer@12340000 {
71 phys = <&usbphy 2>;
72 phy-names = "phy";
73};
74
75Refer to DT bindings documentation of particular PHY consumer devices for more
76information about required PHYs and the way of specification.
diff --git a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
new file mode 100644
index 000000000000..a82361b62015
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
@@ -0,0 +1,26 @@
1Allwinner sun4i USB PHY
2-----------------------
3
4Required properties:
5- compatible : should be one of "allwinner,sun4i-a10-usb-phy",
6 "allwinner,sun5i-a13-usb-phy" or "allwinner,sun7i-a20-usb-phy"
7- reg : a list of offset + length pairs
8- reg-names : "phy_ctrl", "pmu1" and for sun4i or sun7i "pmu2"
9- #phy-cells : from the generic phy bindings, must be 1
10- clocks : phandle + clock specifier for the phy clock
11- clock-names : "usb_phy"
12- resets : a list of phandle + reset specifier pairs
13- reset-names : "usb0_reset", "usb1_reset" and for sun4i or sun7i "usb2_reset"
14
15Example:
16 usbphy: phy@0x01c13400 {
17 #phy-cells = <1>;
18 compatible = "allwinner,sun4i-a10-usb-phy";
19 /* phy base regs, phy1 pmu reg, phy2 pmu reg */
20 reg = <0x01c13400 0x10 0x01c14800 0x4 0x01c1c800 0x4>;
21 reg-names = "phy_ctrl", "pmu1", "pmu2";
22 clocks = <&usb_clk 8>;
23 clock-names = "usb_phy";
24 resets = <&usb_clk 1>, <&usb_clk 2>;
25 reset-names = "usb1_reset", "usb2_reset";
26 };
diff --git a/Documentation/phy/samsung-usb2.txt b/Documentation/phy/samsung-usb2.txt
new file mode 100644
index 000000000000..ed12d437189d
--- /dev/null
+++ b/Documentation/phy/samsung-usb2.txt
@@ -0,0 +1,135 @@
1.------------------------------------------------------------------------------+
2| Samsung USB 2.0 PHY adaptation layer |
3+-----------------------------------------------------------------------------+'
4
5| 1. Description
6+----------------
7
8The architecture of the USB 2.0 PHY module in Samsung SoCs is similar
9among many SoCs. In spite of the similarities it proved difficult to
10create a one driver that would fit all these PHY controllers. Often
11the differences were minor and were found in particular bits of the
12registers of the PHY. In some rare cases the order of register writes or
13the PHY powering up process had to be altered. This adaptation layer is
14a compromise between having separate drivers and having a single driver
15with added support for many special cases.
16
17| 2. Files description
18+----------------------
19
20- phy-samsung-usb2.c
21 This is the main file of the adaptation layer. This file contains
22 the probe function and provides two callbacks to the Generic PHY
23 Framework. This two callbacks are used to power on and power off the
24 phy. They carry out the common work that has to be done on all version
25 of the PHY module. Depending on which SoC was chosen they execute SoC
26 specific callbacks. The specific SoC version is selected by choosing
27 the appropriate compatible string. In addition, this file contains
28 struct of_device_id definitions for particular SoCs.
29
30- phy-samsung-usb2.h
31 This is the include file. It declares the structures used by this
32 driver. In addition it should contain extern declarations for
33 structures that describe particular SoCs.
34
35| 3. Supporting SoCs
36+--------------------
37
38To support a new SoC a new file should be added to the drivers/phy
39directory. Each SoC's configuration is stored in an instance of the
40struct samsung_usb2_phy_config.
41
42struct samsung_usb2_phy_config {
43 const struct samsung_usb2_common_phy *phys;
44 int (*rate_to_clk)(unsigned long, u32 *);
45 unsigned int num_phys;
46 bool has_mode_switch;
47};
48
49The num_phys is the number of phys handled by the driver. *phys is an
50array that contains the configuration for each phy. The has_mode_switch
51property is a boolean flag that determines whether the SoC has USB host
52and device on a single pair of pins. If so, a special register has to
53be modified to change the internal routing of these pins between a USB
54device or host module.
55
56For example the configuration for Exynos 4210 is following:
57
58const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {
59 .has_mode_switch = 0,
60 .num_phys = EXYNOS4210_NUM_PHYS,
61 .phys = exynos4210_phys,
62 .rate_to_clk = exynos4210_rate_to_clk,
63}
64
65- int (*rate_to_clk)(unsigned long, u32 *)
66 The rate_to_clk callback is to convert the rate of the clock
67 used as the reference clock for the PHY module to the value
68 that should be written in the hardware register.
69
70The exynos4210_phys configuration array is as follows:
71
72static const struct samsung_usb2_common_phy exynos4210_phys[] = {
73 {
74 .label = "device",
75 .id = EXYNOS4210_DEVICE,
76 .power_on = exynos4210_power_on,
77 .power_off = exynos4210_power_off,
78 },
79 {
80 .label = "host",
81 .id = EXYNOS4210_HOST,
82 .power_on = exynos4210_power_on,
83 .power_off = exynos4210_power_off,
84 },
85 {
86 .label = "hsic0",
87 .id = EXYNOS4210_HSIC0,
88 .power_on = exynos4210_power_on,
89 .power_off = exynos4210_power_off,
90 },
91 {
92 .label = "hsic1",
93 .id = EXYNOS4210_HSIC1,
94 .power_on = exynos4210_power_on,
95 .power_off = exynos4210_power_off,
96 },
97 {},
98};
99
100- int (*power_on)(struct samsung_usb2_phy_instance *);
101- int (*power_off)(struct samsung_usb2_phy_instance *);
102 These two callbacks are used to power on and power off the phy
103 by modifying appropriate registers.
104
105Final change to the driver is adding appropriate compatible value to the
106phy-samsung-usb2.c file. In case of Exynos 4210 the following lines were
107added to the struct of_device_id samsung_usb2_phy_of_match[] array:
108
109#ifdef CONFIG_PHY_EXYNOS4210_USB2
110 {
111 .compatible = "samsung,exynos4210-usb2-phy",
112 .data = &exynos4210_usb2_phy_config,
113 },
114#endif
115
116To add further flexibility to the driver the Kconfig file enables to
117include support for selected SoCs in the compiled driver. The Kconfig
118entry for Exynos 4210 is following:
119
120config PHY_EXYNOS4210_USB2
121 bool "Support for Exynos 4210"
122 depends on PHY_SAMSUNG_USB2
123 depends on CPU_EXYNOS4210
124 help
125 Enable USB PHY support for Exynos 4210. This option requires that
126 Samsung USB 2.0 PHY driver is enabled and means that support for this
127 particular SoC is compiled in the driver. In case of Exynos 4210 four
128 phys are available - device, host, HSCI0 and HSCI1.
129
130The newly created file that supports the new SoC has to be also added to the
131Makefile. In case of Exynos 4210 the added line is following:
132
133obj-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o
134
135After completing these steps the support for the new SoC should be ready.
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index c7a551c2d5f1..8d3c49cc500f 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -16,30 +16,56 @@ config GENERIC_PHY
16 framework should select this config. 16 framework should select this config.
17 17
18config PHY_EXYNOS_MIPI_VIDEO 18config PHY_EXYNOS_MIPI_VIDEO
19 depends on HAS_IOMEM
20 tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver" 19 tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver"
20 depends on HAS_IOMEM
21 depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
22 select GENERIC_PHY
23 default y if ARCH_S5PV210 || ARCH_EXYNOS
21 help 24 help
22 Support for MIPI CSI-2 and MIPI DSI DPHY found on Samsung S5P 25 Support for MIPI CSI-2 and MIPI DSI DPHY found on Samsung S5P
23 and EXYNOS SoCs. 26 and EXYNOS SoCs.
24 27
25config PHY_MVEBU_SATA 28config PHY_MVEBU_SATA
26 def_bool y 29 def_bool y
27 depends on ARCH_KIRKWOOD || ARCH_DOVE 30 depends on ARCH_KIRKWOOD || ARCH_DOVE || MACH_DOVE
28 depends on OF 31 depends on OF
29 select GENERIC_PHY 32 select GENERIC_PHY
30 33
34config OMAP_CONTROL_PHY
35 tristate "OMAP CONTROL PHY Driver"
36 help
37 Enable this to add support for the PHY part present in the control
38 module. This driver has API to power on the USB2 PHY and to write to
39 the mailbox. The mailbox is present only in omap4 and the register to
40 power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an
41 additional register to power on USB3 PHY/SATA PHY/PCIE PHY
42 (PIPE3 PHY).
43
31config OMAP_USB2 44config OMAP_USB2
32 tristate "OMAP USB2 PHY Driver" 45 tristate "OMAP USB2 PHY Driver"
33 depends on ARCH_OMAP2PLUS 46 depends on ARCH_OMAP2PLUS
34 depends on USB_PHY 47 depends on USB_PHY
35 select GENERIC_PHY 48 select GENERIC_PHY
36 select OMAP_CONTROL_USB 49 select OMAP_CONTROL_PHY
50 depends on OMAP_OCP2SCP
37 help 51 help
38 Enable this to support the transceiver that is part of SOC. This 52 Enable this to support the transceiver that is part of SOC. This
39 driver takes care of all the PHY functionality apart from comparator. 53 driver takes care of all the PHY functionality apart from comparator.
40 The USB OTG controller communicates with the comparator using this 54 The USB OTG controller communicates with the comparator using this
41 driver. 55 driver.
42 56
57config TI_PIPE3
58 tristate "TI PIPE3 PHY Driver"
59 depends on ARCH_OMAP2PLUS || COMPILE_TEST
60 select GENERIC_PHY
61 select OMAP_CONTROL_PHY
62 depends on OMAP_OCP2SCP
63 help
64 Enable this to support the PIPE3 PHY that is part of TI SOCs. This
65 driver takes care of all the PHY functionality apart from comparator.
66 This driver interacts with the "OMAP Control PHY Driver" to power
67 on/off the PHY.
68
43config TWL4030_USB 69config TWL4030_USB
44 tristate "TWL4030 USB Transceiver Driver" 70 tristate "TWL4030 USB Transceiver Driver"
45 depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS 71 depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
@@ -54,6 +80,8 @@ config TWL4030_USB
54config PHY_EXYNOS_DP_VIDEO 80config PHY_EXYNOS_DP_VIDEO
55 tristate "EXYNOS SoC series Display Port PHY driver" 81 tristate "EXYNOS SoC series Display Port PHY driver"
56 depends on OF 82 depends on OF
83 depends on ARCH_EXYNOS || COMPILE_TEST
84 default ARCH_EXYNOS
57 select GENERIC_PHY 85 select GENERIC_PHY
58 help 86 help
59 Support for Display Port PHY found on Samsung EXYNOS SoCs. 87 Support for Display Port PHY found on Samsung EXYNOS SoCs.
@@ -65,4 +93,77 @@ config BCM_KONA_USB2_PHY
65 help 93 help
66 Enable this to support the Broadcom Kona USB 2.0 PHY. 94 Enable this to support the Broadcom Kona USB 2.0 PHY.
67 95
96config PHY_EXYNOS5250_SATA
97 tristate "Exynos5250 Sata SerDes/PHY driver"
98 depends on SOC_EXYNOS5250
99 depends on HAS_IOMEM
100 depends on OF
101 select GENERIC_PHY
102 select I2C
103 select I2C_S3C2410
104 select MFD_SYSCON
105 help
106 Enable this to support SATA SerDes/Phy found on Samsung's
107 Exynos5250 based SoCs.This SerDes/Phy supports SATA 1.5 Gb/s,
108 SATA 3.0 Gb/s, SATA 6.0 Gb/s speeds. It supports one SATA host
109 port to accept one SATA device.
110
111config PHY_SUN4I_USB
112 tristate "Allwinner sunxi SoC USB PHY driver"
113 depends on ARCH_SUNXI && HAS_IOMEM && OF
114 select GENERIC_PHY
115 help
116 Enable this to support the transceiver that is part of Allwinner
117 sunxi SoCs.
118
119 This driver controls the entire USB PHY block, both the USB OTG
120 parts, as well as the 2 regular USB 2 host PHYs.
121
122config PHY_SAMSUNG_USB2
123 tristate "Samsung USB 2.0 PHY driver"
124 select GENERIC_PHY
125 select MFD_SYSCON
126 help
127 Enable this to support the Samsung USB 2.0 PHY driver for Samsung
128 SoCs. This driver provides the interface for USB 2.0 PHY. Support for
129 particular SoCs has to be enabled in addition to this driver. Number
130 and type of supported phys depends on the SoC.
131
132config PHY_EXYNOS4210_USB2
133 bool "Support for Exynos 4210"
134 depends on PHY_SAMSUNG_USB2
135 depends on CPU_EXYNOS4210
136 help
137 Enable USB PHY support for Exynos 4210. This option requires that
138 Samsung USB 2.0 PHY driver is enabled and means that support for this
139 particular SoC is compiled in the driver. In case of Exynos 4210 four
140 phys are available - device, host, HSIC0 and HSIC1.
141
142config PHY_EXYNOS4X12_USB2
143 bool "Support for Exynos 4x12"
144 depends on PHY_SAMSUNG_USB2
145 depends on (SOC_EXYNOS4212 || SOC_EXYNOS4412)
146 help
147 Enable USB PHY support for Exynos 4x12. This option requires that
148 Samsung USB 2.0 PHY driver is enabled and means that support for this
149 particular SoC is compiled in the driver. In case of Exynos 4x12 four
150 phys are available - device, host, HSIC0 and HSIC1.
151
152config PHY_EXYNOS5250_USB2
153 bool "Support for Exynos 5250"
154 depends on PHY_SAMSUNG_USB2
155 depends on SOC_EXYNOS5250
156 help
157 Enable USB PHY support for Exynos 5250. This option requires that
158 Samsung USB 2.0 PHY driver is enabled and means that support for this
159 particular SoC is compiled in the driver. In case of Exynos 5250 four
160 phys are available - device, host, HSIC0 and HSIC.
161
162config PHY_XGENE
163 tristate "APM X-Gene 15Gbps PHY support"
164 depends on HAS_IOMEM && OF && (ARM64 || COMPILE_TEST)
165 select GENERIC_PHY
166 help
167 This option enables support for APM X-Gene SoC multi-purpose PHY.
168
68endmenu 169endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index b57c25371cca..2faf78edc864 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -7,5 +7,14 @@ obj-$(CONFIG_BCM_KONA_USB2_PHY) += phy-bcm-kona-usb2.o
7obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o 7obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o
8obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o 8obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o
9obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o 9obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o
10obj-$(CONFIG_OMAP_CONTROL_PHY) += phy-omap-control.o
10obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o 11obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o
12obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o
11obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o 13obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o
14obj-$(CONFIG_PHY_EXYNOS5250_SATA) += phy-exynos5250-sata.o
15obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o
16obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-samsung-usb2.o
17obj-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o
18obj-$(CONFIG_PHY_EXYNOS4X12_USB2) += phy-exynos4x12-usb2.o
19obj-$(CONFIG_PHY_EXYNOS5250_USB2) += phy-exynos5250-usb2.o
20obj-$(CONFIG_PHY_XGENE) += phy-xgene.o
diff --git a/drivers/phy/phy-bcm-kona-usb2.c b/drivers/phy/phy-bcm-kona-usb2.c
index efc5c1a13a5d..e94f5a6a5645 100644
--- a/drivers/phy/phy-bcm-kona-usb2.c
+++ b/drivers/phy/phy-bcm-kona-usb2.c
@@ -128,10 +128,8 @@ static int bcm_kona_usb2_probe(struct platform_device *pdev)
128 128
129 phy_provider = devm_of_phy_provider_register(dev, 129 phy_provider = devm_of_phy_provider_register(dev,
130 of_phy_simple_xlate); 130 of_phy_simple_xlate);
131 if (IS_ERR(phy_provider))
132 return PTR_ERR(phy_provider);
133 131
134 return 0; 132 return PTR_ERR_OR_ZERO(phy_provider);
135} 133}
136 134
137static const struct of_device_id bcm_kona_usb2_dt_ids[] = { 135static const struct of_device_id bcm_kona_usb2_dt_ids[] = {
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 6c738376daff..623b71c54b3e 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -274,8 +274,8 @@ int phy_power_off(struct phy *phy)
274EXPORT_SYMBOL_GPL(phy_power_off); 274EXPORT_SYMBOL_GPL(phy_power_off);
275 275
276/** 276/**
277 * of_phy_get() - lookup and obtain a reference to a phy by phandle 277 * _of_phy_get() - lookup and obtain a reference to a phy by phandle
278 * @dev: device that requests this phy 278 * @np: device_node for which to get the phy
279 * @index: the index of the phy 279 * @index: the index of the phy
280 * 280 *
281 * Returns the phy associated with the given phandle value, 281 * Returns the phy associated with the given phandle value,
@@ -284,20 +284,17 @@ EXPORT_SYMBOL_GPL(phy_power_off);
284 * not yet loaded. This function uses of_xlate call back function provided 284 * not yet loaded. This function uses of_xlate call back function provided
285 * while registering the phy_provider to find the phy instance. 285 * while registering the phy_provider to find the phy instance.
286 */ 286 */
287static struct phy *of_phy_get(struct device *dev, int index) 287static struct phy *_of_phy_get(struct device_node *np, int index)
288{ 288{
289 int ret; 289 int ret;
290 struct phy_provider *phy_provider; 290 struct phy_provider *phy_provider;
291 struct phy *phy = NULL; 291 struct phy *phy = NULL;
292 struct of_phandle_args args; 292 struct of_phandle_args args;
293 293
294 ret = of_parse_phandle_with_args(dev->of_node, "phys", "#phy-cells", 294 ret = of_parse_phandle_with_args(np, "phys", "#phy-cells",
295 index, &args); 295 index, &args);
296 if (ret) { 296 if (ret)
297 dev_dbg(dev, "failed to get phy in %s node\n",
298 dev->of_node->full_name);
299 return ERR_PTR(-ENODEV); 297 return ERR_PTR(-ENODEV);
300 }
301 298
302 mutex_lock(&phy_provider_mutex); 299 mutex_lock(&phy_provider_mutex);
303 phy_provider = of_phy_provider_lookup(args.np); 300 phy_provider = of_phy_provider_lookup(args.np);
@@ -317,6 +314,36 @@ err0:
317} 314}
318 315
319/** 316/**
317 * of_phy_get() - lookup and obtain a reference to a phy using a device_node.
318 * @np: device_node for which to get the phy
319 * @con_id: name of the phy from device's point of view
320 *
321 * Returns the phy driver, after getting a refcount to it; or
322 * -ENODEV if there is no such phy. The caller is responsible for
323 * calling phy_put() to release that count.
324 */
325struct phy *of_phy_get(struct device_node *np, const char *con_id)
326{
327 struct phy *phy = NULL;
328 int index = 0;
329
330 if (con_id)
331 index = of_property_match_string(np, "phy-names", con_id);
332
333 phy = _of_phy_get(np, index);
334 if (IS_ERR(phy))
335 return phy;
336
337 if (!try_module_get(phy->ops->owner))
338 return ERR_PTR(-EPROBE_DEFER);
339
340 get_device(&phy->dev);
341
342 return phy;
343}
344EXPORT_SYMBOL_GPL(of_phy_get);
345
346/**
320 * phy_put() - release the PHY 347 * phy_put() - release the PHY
321 * @phy: the phy returned by phy_get() 348 * @phy: the phy returned by phy_get()
322 * 349 *
@@ -407,7 +434,7 @@ struct phy *phy_get(struct device *dev, const char *string)
407 if (dev->of_node) { 434 if (dev->of_node) {
408 index = of_property_match_string(dev->of_node, "phy-names", 435 index = of_property_match_string(dev->of_node, "phy-names",
409 string); 436 string);
410 phy = of_phy_get(dev, index); 437 phy = _of_phy_get(dev->of_node, index);
411 } else { 438 } else {
412 phy = phy_lookup(dev, string); 439 phy = phy_lookup(dev, string);
413 } 440 }
@@ -499,6 +526,37 @@ struct phy *devm_phy_optional_get(struct device *dev, const char *string)
499EXPORT_SYMBOL_GPL(devm_phy_optional_get); 526EXPORT_SYMBOL_GPL(devm_phy_optional_get);
500 527
501/** 528/**
529 * devm_of_phy_get() - lookup and obtain a reference to a phy.
530 * @dev: device that requests this phy
531 * @np: node containing the phy
532 * @con_id: name of the phy from device's point of view
533 *
534 * Gets the phy using of_phy_get(), and associates a device with it using
535 * devres. On driver detach, release function is invoked on the devres data,
536 * then, devres data is freed.
537 */
538struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
539 const char *con_id)
540{
541 struct phy **ptr, *phy;
542
543 ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
544 if (!ptr)
545 return ERR_PTR(-ENOMEM);
546
547 phy = of_phy_get(np, con_id);
548 if (!IS_ERR(phy)) {
549 *ptr = phy;
550 devres_add(dev, ptr);
551 } else {
552 devres_free(ptr);
553 }
554
555 return phy;
556}
557EXPORT_SYMBOL_GPL(devm_of_phy_get);
558
559/**
502 * phy_create() - create a new phy 560 * phy_create() - create a new phy
503 * @dev: device that is creating the new phy 561 * @dev: device that is creating the new phy
504 * @ops: function pointers for performing phy operations 562 * @ops: function pointers for performing phy operations
diff --git a/drivers/phy/phy-exynos4210-usb2.c b/drivers/phy/phy-exynos4210-usb2.c
new file mode 100644
index 000000000000..236a52ad94eb
--- /dev/null
+++ b/drivers/phy/phy-exynos4210-usb2.c
@@ -0,0 +1,261 @@
1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver - Exynos 4210 support
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/delay.h>
13#include <linux/io.h>
14#include <linux/phy/phy.h>
15#include <linux/regmap.h>
16#include "phy-samsung-usb2.h"
17
18/* Exynos USB PHY registers */
19
20/* PHY power control */
21#define EXYNOS_4210_UPHYPWR 0x0
22
23#define EXYNOS_4210_UPHYPWR_PHY0_SUSPEND BIT(0)
24#define EXYNOS_4210_UPHYPWR_PHY0_PWR BIT(3)
25#define EXYNOS_4210_UPHYPWR_PHY0_OTG_PWR BIT(4)
26#define EXYNOS_4210_UPHYPWR_PHY0_SLEEP BIT(5)
27#define EXYNOS_4210_UPHYPWR_PHY0 ( \
28 EXYNOS_4210_UPHYPWR_PHY0_SUSPEND | \
29 EXYNOS_4210_UPHYPWR_PHY0_PWR | \
30 EXYNOS_4210_UPHYPWR_PHY0_OTG_PWR | \
31 EXYNOS_4210_UPHYPWR_PHY0_SLEEP)
32
33#define EXYNOS_4210_UPHYPWR_PHY1_SUSPEND BIT(6)
34#define EXYNOS_4210_UPHYPWR_PHY1_PWR BIT(7)
35#define EXYNOS_4210_UPHYPWR_PHY1_SLEEP BIT(8)
36#define EXYNOS_4210_UPHYPWR_PHY1 ( \
37 EXYNOS_4210_UPHYPWR_PHY1_SUSPEND | \
38 EXYNOS_4210_UPHYPWR_PHY1_PWR | \
39 EXYNOS_4210_UPHYPWR_PHY1_SLEEP)
40
41#define EXYNOS_4210_UPHYPWR_HSIC0_SUSPEND BIT(9)
42#define EXYNOS_4210_UPHYPWR_HSIC0_SLEEP BIT(10)
43#define EXYNOS_4210_UPHYPWR_HSIC0 ( \
44 EXYNOS_4210_UPHYPWR_HSIC0_SUSPEND | \
45 EXYNOS_4210_UPHYPWR_HSIC0_SLEEP)
46
47#define EXYNOS_4210_UPHYPWR_HSIC1_SUSPEND BIT(11)
48#define EXYNOS_4210_UPHYPWR_HSIC1_SLEEP BIT(12)
49#define EXYNOS_4210_UPHYPWR_HSIC1 ( \
50 EXYNOS_4210_UPHYPWR_HSIC1_SUSPEND | \
51 EXYNOS_4210_UPHYPWR_HSIC1_SLEEP)
52
53/* PHY clock control */
54#define EXYNOS_4210_UPHYCLK 0x4
55
56#define EXYNOS_4210_UPHYCLK_PHYFSEL_MASK (0x3 << 0)
57#define EXYNOS_4210_UPHYCLK_PHYFSEL_OFFSET 0
58#define EXYNOS_4210_UPHYCLK_PHYFSEL_48MHZ (0x0 << 0)
59#define EXYNOS_4210_UPHYCLK_PHYFSEL_24MHZ (0x3 << 0)
60#define EXYNOS_4210_UPHYCLK_PHYFSEL_12MHZ (0x2 << 0)
61
62#define EXYNOS_4210_UPHYCLK_PHY0_ID_PULLUP BIT(2)
63#define EXYNOS_4210_UPHYCLK_PHY0_COMMON_ON BIT(4)
64#define EXYNOS_4210_UPHYCLK_PHY1_COMMON_ON BIT(7)
65
66/* PHY reset control */
67#define EXYNOS_4210_UPHYRST 0x8
68
69#define EXYNOS_4210_URSTCON_PHY0 BIT(0)
70#define EXYNOS_4210_URSTCON_OTG_HLINK BIT(1)
71#define EXYNOS_4210_URSTCON_OTG_PHYLINK BIT(2)
72#define EXYNOS_4210_URSTCON_PHY1_ALL BIT(3)
73#define EXYNOS_4210_URSTCON_PHY1_P0 BIT(4)
74#define EXYNOS_4210_URSTCON_PHY1_P1P2 BIT(5)
75#define EXYNOS_4210_URSTCON_HOST_LINK_ALL BIT(6)
76#define EXYNOS_4210_URSTCON_HOST_LINK_P0 BIT(7)
77#define EXYNOS_4210_URSTCON_HOST_LINK_P1 BIT(8)
78#define EXYNOS_4210_URSTCON_HOST_LINK_P2 BIT(9)
79
80/* Isolation, configured in the power management unit */
81#define EXYNOS_4210_USB_ISOL_DEVICE_OFFSET 0x704
82#define EXYNOS_4210_USB_ISOL_DEVICE BIT(0)
83#define EXYNOS_4210_USB_ISOL_HOST_OFFSET 0x708
84#define EXYNOS_4210_USB_ISOL_HOST BIT(0)
85
86/* USBYPHY1 Floating prevention */
87#define EXYNOS_4210_UPHY1CON 0x34
88#define EXYNOS_4210_UPHY1CON_FLOAT_PREVENTION 0x1
89
90/* Mode switching SUB Device <-> Host */
91#define EXYNOS_4210_MODE_SWITCH_OFFSET 0x21c
92#define EXYNOS_4210_MODE_SWITCH_MASK 1
93#define EXYNOS_4210_MODE_SWITCH_DEVICE 0
94#define EXYNOS_4210_MODE_SWITCH_HOST 1
95
96enum exynos4210_phy_id {
97 EXYNOS4210_DEVICE,
98 EXYNOS4210_HOST,
99 EXYNOS4210_HSIC0,
100 EXYNOS4210_HSIC1,
101 EXYNOS4210_NUM_PHYS,
102};
103
104/*
105 * exynos4210_rate_to_clk() converts the supplied clock rate to the value that
106 * can be written to the phy register.
107 */
108static int exynos4210_rate_to_clk(unsigned long rate, u32 *reg)
109{
110 switch (rate) {
111 case 12 * MHZ:
112 *reg = EXYNOS_4210_UPHYCLK_PHYFSEL_12MHZ;
113 break;
114 case 24 * MHZ:
115 *reg = EXYNOS_4210_UPHYCLK_PHYFSEL_24MHZ;
116 break;
117 case 48 * MHZ:
118 *reg = EXYNOS_4210_UPHYCLK_PHYFSEL_48MHZ;
119 break;
120 default:
121 return -EINVAL;
122 }
123
124 return 0;
125}
126
127static void exynos4210_isol(struct samsung_usb2_phy_instance *inst, bool on)
128{
129 struct samsung_usb2_phy_driver *drv = inst->drv;
130 u32 offset;
131 u32 mask;
132
133 switch (inst->cfg->id) {
134 case EXYNOS4210_DEVICE:
135 offset = EXYNOS_4210_USB_ISOL_DEVICE_OFFSET;
136 mask = EXYNOS_4210_USB_ISOL_DEVICE;
137 break;
138 case EXYNOS4210_HOST:
139 offset = EXYNOS_4210_USB_ISOL_HOST_OFFSET;
140 mask = EXYNOS_4210_USB_ISOL_HOST;
141 break;
142 default:
143 return;
144 };
145
146 regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
147}
148
149static void exynos4210_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
150{
151 struct samsung_usb2_phy_driver *drv = inst->drv;
152 u32 rstbits = 0;
153 u32 phypwr = 0;
154 u32 rst;
155 u32 pwr;
156 u32 clk;
157
158 switch (inst->cfg->id) {
159 case EXYNOS4210_DEVICE:
160 phypwr = EXYNOS_4210_UPHYPWR_PHY0;
161 rstbits = EXYNOS_4210_URSTCON_PHY0;
162 break;
163 case EXYNOS4210_HOST:
164 phypwr = EXYNOS_4210_UPHYPWR_PHY1;
165 rstbits = EXYNOS_4210_URSTCON_PHY1_ALL |
166 EXYNOS_4210_URSTCON_PHY1_P0 |
167 EXYNOS_4210_URSTCON_PHY1_P1P2 |
168 EXYNOS_4210_URSTCON_HOST_LINK_ALL |
169 EXYNOS_4210_URSTCON_HOST_LINK_P0;
170 writel(on, drv->reg_phy + EXYNOS_4210_UPHY1CON);
171 break;
172 case EXYNOS4210_HSIC0:
173 phypwr = EXYNOS_4210_UPHYPWR_HSIC0;
174 rstbits = EXYNOS_4210_URSTCON_PHY1_P1P2 |
175 EXYNOS_4210_URSTCON_HOST_LINK_P1;
176 break;
177 case EXYNOS4210_HSIC1:
178 phypwr = EXYNOS_4210_UPHYPWR_HSIC1;
179 rstbits = EXYNOS_4210_URSTCON_PHY1_P1P2 |
180 EXYNOS_4210_URSTCON_HOST_LINK_P2;
181 break;
182 };
183
184 if (on) {
185 clk = readl(drv->reg_phy + EXYNOS_4210_UPHYCLK);
186 clk &= ~EXYNOS_4210_UPHYCLK_PHYFSEL_MASK;
187 clk |= drv->ref_reg_val << EXYNOS_4210_UPHYCLK_PHYFSEL_OFFSET;
188 writel(clk, drv->reg_phy + EXYNOS_4210_UPHYCLK);
189
190 pwr = readl(drv->reg_phy + EXYNOS_4210_UPHYPWR);
191 pwr &= ~phypwr;
192 writel(pwr, drv->reg_phy + EXYNOS_4210_UPHYPWR);
193
194 rst = readl(drv->reg_phy + EXYNOS_4210_UPHYRST);
195 rst |= rstbits;
196 writel(rst, drv->reg_phy + EXYNOS_4210_UPHYRST);
197 udelay(10);
198 rst &= ~rstbits;
199 writel(rst, drv->reg_phy + EXYNOS_4210_UPHYRST);
200 /* The following delay is necessary for the reset sequence to be
201 * completed */
202 udelay(80);
203 } else {
204 pwr = readl(drv->reg_phy + EXYNOS_4210_UPHYPWR);
205 pwr |= phypwr;
206 writel(pwr, drv->reg_phy + EXYNOS_4210_UPHYPWR);
207 }
208}
209
210static int exynos4210_power_on(struct samsung_usb2_phy_instance *inst)
211{
212 /* Order of initialisation is important - first power then isolation */
213 exynos4210_phy_pwr(inst, 1);
214 exynos4210_isol(inst, 0);
215
216 return 0;
217}
218
219static int exynos4210_power_off(struct samsung_usb2_phy_instance *inst)
220{
221 exynos4210_isol(inst, 1);
222 exynos4210_phy_pwr(inst, 0);
223
224 return 0;
225}
226
227
228static const struct samsung_usb2_common_phy exynos4210_phys[] = {
229 {
230 .label = "device",
231 .id = EXYNOS4210_DEVICE,
232 .power_on = exynos4210_power_on,
233 .power_off = exynos4210_power_off,
234 },
235 {
236 .label = "host",
237 .id = EXYNOS4210_HOST,
238 .power_on = exynos4210_power_on,
239 .power_off = exynos4210_power_off,
240 },
241 {
242 .label = "hsic0",
243 .id = EXYNOS4210_HSIC0,
244 .power_on = exynos4210_power_on,
245 .power_off = exynos4210_power_off,
246 },
247 {
248 .label = "hsic1",
249 .id = EXYNOS4210_HSIC1,
250 .power_on = exynos4210_power_on,
251 .power_off = exynos4210_power_off,
252 },
253 {},
254};
255
256const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {
257 .has_mode_switch = 0,
258 .num_phys = EXYNOS4210_NUM_PHYS,
259 .phys = exynos4210_phys,
260 .rate_to_clk = exynos4210_rate_to_clk,
261};
diff --git a/drivers/phy/phy-exynos4x12-usb2.c b/drivers/phy/phy-exynos4x12-usb2.c
new file mode 100644
index 000000000000..d92a7cc5698a
--- /dev/null
+++ b/drivers/phy/phy-exynos4x12-usb2.c
@@ -0,0 +1,328 @@
1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver - Exynos 4x12 support
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/delay.h>
13#include <linux/io.h>
14#include <linux/phy/phy.h>
15#include <linux/regmap.h>
16#include "phy-samsung-usb2.h"
17
18/* Exynos USB PHY registers */
19
20/* PHY power control */
21#define EXYNOS_4x12_UPHYPWR 0x0
22
23#define EXYNOS_4x12_UPHYPWR_PHY0_SUSPEND BIT(0)
24#define EXYNOS_4x12_UPHYPWR_PHY0_PWR BIT(3)
25#define EXYNOS_4x12_UPHYPWR_PHY0_OTG_PWR BIT(4)
26#define EXYNOS_4x12_UPHYPWR_PHY0_SLEEP BIT(5)
27#define EXYNOS_4x12_UPHYPWR_PHY0 ( \
28 EXYNOS_4x12_UPHYPWR_PHY0_SUSPEND | \
29 EXYNOS_4x12_UPHYPWR_PHY0_PWR | \
30 EXYNOS_4x12_UPHYPWR_PHY0_OTG_PWR | \
31 EXYNOS_4x12_UPHYPWR_PHY0_SLEEP)
32
33#define EXYNOS_4x12_UPHYPWR_PHY1_SUSPEND BIT(6)
34#define EXYNOS_4x12_UPHYPWR_PHY1_PWR BIT(7)
35#define EXYNOS_4x12_UPHYPWR_PHY1_SLEEP BIT(8)
36#define EXYNOS_4x12_UPHYPWR_PHY1 ( \
37 EXYNOS_4x12_UPHYPWR_PHY1_SUSPEND | \
38 EXYNOS_4x12_UPHYPWR_PHY1_PWR | \
39 EXYNOS_4x12_UPHYPWR_PHY1_SLEEP)
40
41#define EXYNOS_4x12_UPHYPWR_HSIC0_SUSPEND BIT(9)
42#define EXYNOS_4x12_UPHYPWR_HSIC0_PWR BIT(10)
43#define EXYNOS_4x12_UPHYPWR_HSIC0_SLEEP BIT(11)
44#define EXYNOS_4x12_UPHYPWR_HSIC0 ( \
45 EXYNOS_4x12_UPHYPWR_HSIC0_SUSPEND | \
46 EXYNOS_4x12_UPHYPWR_HSIC0_PWR | \
47 EXYNOS_4x12_UPHYPWR_HSIC0_SLEEP)
48
49#define EXYNOS_4x12_UPHYPWR_HSIC1_SUSPEND BIT(12)
50#define EXYNOS_4x12_UPHYPWR_HSIC1_PWR BIT(13)
51#define EXYNOS_4x12_UPHYPWR_HSIC1_SLEEP BIT(14)
52#define EXYNOS_4x12_UPHYPWR_HSIC1 ( \
53 EXYNOS_4x12_UPHYPWR_HSIC1_SUSPEND | \
54 EXYNOS_4x12_UPHYPWR_HSIC1_PWR | \
55 EXYNOS_4x12_UPHYPWR_HSIC1_SLEEP)
56
57/* PHY clock control */
58#define EXYNOS_4x12_UPHYCLK 0x4
59
60#define EXYNOS_4x12_UPHYCLK_PHYFSEL_MASK (0x7 << 0)
61#define EXYNOS_4x12_UPHYCLK_PHYFSEL_OFFSET 0
62#define EXYNOS_4x12_UPHYCLK_PHYFSEL_9MHZ6 (0x0 << 0)
63#define EXYNOS_4x12_UPHYCLK_PHYFSEL_10MHZ (0x1 << 0)
64#define EXYNOS_4x12_UPHYCLK_PHYFSEL_12MHZ (0x2 << 0)
65#define EXYNOS_4x12_UPHYCLK_PHYFSEL_19MHZ2 (0x3 << 0)
66#define EXYNOS_4x12_UPHYCLK_PHYFSEL_20MHZ (0x4 << 0)
67#define EXYNOS_4x12_UPHYCLK_PHYFSEL_24MHZ (0x5 << 0)
68#define EXYNOS_4x12_UPHYCLK_PHYFSEL_50MHZ (0x7 << 0)
69
70#define EXYNOS_4x12_UPHYCLK_PHY0_ID_PULLUP BIT(3)
71#define EXYNOS_4x12_UPHYCLK_PHY0_COMMON_ON BIT(4)
72#define EXYNOS_4x12_UPHYCLK_PHY1_COMMON_ON BIT(7)
73
74#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_MASK (0x7f << 10)
75#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_OFFSET 10
76#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_12MHZ (0x24 << 10)
77#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_15MHZ (0x1c << 10)
78#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_16MHZ (0x1a << 10)
79#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_19MHZ2 (0x15 << 10)
80#define EXYNOS_4x12_UPHYCLK_HSIC_REFCLK_20MHZ (0x14 << 10)
81
82/* PHY reset control */
83#define EXYNOS_4x12_UPHYRST 0x8
84
85#define EXYNOS_4x12_URSTCON_PHY0 BIT(0)
86#define EXYNOS_4x12_URSTCON_OTG_HLINK BIT(1)
87#define EXYNOS_4x12_URSTCON_OTG_PHYLINK BIT(2)
88#define EXYNOS_4x12_URSTCON_HOST_PHY BIT(3)
89#define EXYNOS_4x12_URSTCON_PHY1 BIT(4)
90#define EXYNOS_4x12_URSTCON_HSIC0 BIT(5)
91#define EXYNOS_4x12_URSTCON_HSIC1 BIT(6)
92#define EXYNOS_4x12_URSTCON_HOST_LINK_ALL BIT(7)
93#define EXYNOS_4x12_URSTCON_HOST_LINK_P0 BIT(8)
94#define EXYNOS_4x12_URSTCON_HOST_LINK_P1 BIT(9)
95#define EXYNOS_4x12_URSTCON_HOST_LINK_P2 BIT(10)
96
97/* Isolation, configured in the power management unit */
98#define EXYNOS_4x12_USB_ISOL_OFFSET 0x704
99#define EXYNOS_4x12_USB_ISOL_OTG BIT(0)
100#define EXYNOS_4x12_USB_ISOL_HSIC0_OFFSET 0x708
101#define EXYNOS_4x12_USB_ISOL_HSIC0 BIT(0)
102#define EXYNOS_4x12_USB_ISOL_HSIC1_OFFSET 0x70c
103#define EXYNOS_4x12_USB_ISOL_HSIC1 BIT(0)
104
105/* Mode switching SUB Device <-> Host */
106#define EXYNOS_4x12_MODE_SWITCH_OFFSET 0x21c
107#define EXYNOS_4x12_MODE_SWITCH_MASK 1
108#define EXYNOS_4x12_MODE_SWITCH_DEVICE 0
109#define EXYNOS_4x12_MODE_SWITCH_HOST 1
110
111enum exynos4x12_phy_id {
112 EXYNOS4x12_DEVICE,
113 EXYNOS4x12_HOST,
114 EXYNOS4x12_HSIC0,
115 EXYNOS4x12_HSIC1,
116 EXYNOS4x12_NUM_PHYS,
117};
118
119/*
120 * exynos4x12_rate_to_clk() converts the supplied clock rate to the value that
121 * can be written to the phy register.
122 */
123static int exynos4x12_rate_to_clk(unsigned long rate, u32 *reg)
124{
125 /* EXYNOS_4x12_UPHYCLK_PHYFSEL_MASK */
126
127 switch (rate) {
128 case 9600 * KHZ:
129 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_9MHZ6;
130 break;
131 case 10 * MHZ:
132 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_10MHZ;
133 break;
134 case 12 * MHZ:
135 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_12MHZ;
136 break;
137 case 19200 * KHZ:
138 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_19MHZ2;
139 break;
140 case 20 * MHZ:
141 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_20MHZ;
142 break;
143 case 24 * MHZ:
144 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_24MHZ;
145 break;
146 case 50 * MHZ:
147 *reg = EXYNOS_4x12_UPHYCLK_PHYFSEL_50MHZ;
148 break;
149 default:
150 return -EINVAL;
151 }
152
153 return 0;
154}
155
156static void exynos4x12_isol(struct samsung_usb2_phy_instance *inst, bool on)
157{
158 struct samsung_usb2_phy_driver *drv = inst->drv;
159 u32 offset;
160 u32 mask;
161
162 switch (inst->cfg->id) {
163 case EXYNOS4x12_DEVICE:
164 case EXYNOS4x12_HOST:
165 offset = EXYNOS_4x12_USB_ISOL_OFFSET;
166 mask = EXYNOS_4x12_USB_ISOL_OTG;
167 break;
168 case EXYNOS4x12_HSIC0:
169 offset = EXYNOS_4x12_USB_ISOL_HSIC0_OFFSET;
170 mask = EXYNOS_4x12_USB_ISOL_HSIC0;
171 break;
172 case EXYNOS4x12_HSIC1:
173 offset = EXYNOS_4x12_USB_ISOL_HSIC1_OFFSET;
174 mask = EXYNOS_4x12_USB_ISOL_HSIC1;
175 break;
176 default:
177 return;
178 };
179
180 regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
181}
182
183static void exynos4x12_setup_clk(struct samsung_usb2_phy_instance *inst)
184{
185 struct samsung_usb2_phy_driver *drv = inst->drv;
186 u32 clk;
187
188 clk = readl(drv->reg_phy + EXYNOS_4x12_UPHYCLK);
189 clk &= ~EXYNOS_4x12_UPHYCLK_PHYFSEL_MASK;
190 clk |= drv->ref_reg_val << EXYNOS_4x12_UPHYCLK_PHYFSEL_OFFSET;
191 writel(clk, drv->reg_phy + EXYNOS_4x12_UPHYCLK);
192}
193
194static void exynos4x12_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
195{
196 struct samsung_usb2_phy_driver *drv = inst->drv;
197 u32 rstbits = 0;
198 u32 phypwr = 0;
199 u32 rst;
200 u32 pwr;
201 u32 mode = 0;
202 u32 switch_mode = 0;
203
204 switch (inst->cfg->id) {
205 case EXYNOS4x12_DEVICE:
206 phypwr = EXYNOS_4x12_UPHYPWR_PHY0;
207 rstbits = EXYNOS_4x12_URSTCON_PHY0;
208 mode = EXYNOS_4x12_MODE_SWITCH_DEVICE;
209 switch_mode = 1;
210 break;
211 case EXYNOS4x12_HOST:
212 phypwr = EXYNOS_4x12_UPHYPWR_PHY1;
213 rstbits = EXYNOS_4x12_URSTCON_HOST_PHY;
214 mode = EXYNOS_4x12_MODE_SWITCH_HOST;
215 switch_mode = 1;
216 break;
217 case EXYNOS4x12_HSIC0:
218 phypwr = EXYNOS_4x12_UPHYPWR_HSIC0;
219 rstbits = EXYNOS_4x12_URSTCON_HSIC1 |
220 EXYNOS_4x12_URSTCON_HOST_LINK_P0 |
221 EXYNOS_4x12_URSTCON_HOST_PHY;
222 break;
223 case EXYNOS4x12_HSIC1:
224 phypwr = EXYNOS_4x12_UPHYPWR_HSIC1;
225 rstbits = EXYNOS_4x12_URSTCON_HSIC1 |
226 EXYNOS_4x12_URSTCON_HOST_LINK_P1;
227 break;
228 };
229
230 if (on) {
231 if (switch_mode)
232 regmap_update_bits(drv->reg_sys,
233 EXYNOS_4x12_MODE_SWITCH_OFFSET,
234 EXYNOS_4x12_MODE_SWITCH_MASK, mode);
235
236 pwr = readl(drv->reg_phy + EXYNOS_4x12_UPHYPWR);
237 pwr &= ~phypwr;
238 writel(pwr, drv->reg_phy + EXYNOS_4x12_UPHYPWR);
239
240 rst = readl(drv->reg_phy + EXYNOS_4x12_UPHYRST);
241 rst |= rstbits;
242 writel(rst, drv->reg_phy + EXYNOS_4x12_UPHYRST);
243 udelay(10);
244 rst &= ~rstbits;
245 writel(rst, drv->reg_phy + EXYNOS_4x12_UPHYRST);
246 /* The following delay is necessary for the reset sequence to be
247 * completed */
248 udelay(80);
249 } else {
250 pwr = readl(drv->reg_phy + EXYNOS_4x12_UPHYPWR);
251 pwr |= phypwr;
252 writel(pwr, drv->reg_phy + EXYNOS_4x12_UPHYPWR);
253 }
254}
255
256static int exynos4x12_power_on(struct samsung_usb2_phy_instance *inst)
257{
258 struct samsung_usb2_phy_driver *drv = inst->drv;
259
260 inst->enabled = 1;
261 exynos4x12_setup_clk(inst);
262 exynos4x12_phy_pwr(inst, 1);
263 exynos4x12_isol(inst, 0);
264
265 /* Power on the device, as it is necessary for HSIC to work */
266 if (inst->cfg->id == EXYNOS4x12_HSIC0) {
267 struct samsung_usb2_phy_instance *device =
268 &drv->instances[EXYNOS4x12_DEVICE];
269 exynos4x12_phy_pwr(device, 1);
270 exynos4x12_isol(device, 0);
271 }
272
273 return 0;
274}
275
276static int exynos4x12_power_off(struct samsung_usb2_phy_instance *inst)
277{
278 struct samsung_usb2_phy_driver *drv = inst->drv;
279 struct samsung_usb2_phy_instance *device =
280 &drv->instances[EXYNOS4x12_DEVICE];
281
282 inst->enabled = 0;
283 exynos4x12_isol(inst, 1);
284 exynos4x12_phy_pwr(inst, 0);
285
286 if (inst->cfg->id == EXYNOS4x12_HSIC0 && !device->enabled) {
287 exynos4x12_isol(device, 1);
288 exynos4x12_phy_pwr(device, 0);
289 }
290
291 return 0;
292}
293
294
295static const struct samsung_usb2_common_phy exynos4x12_phys[] = {
296 {
297 .label = "device",
298 .id = EXYNOS4x12_DEVICE,
299 .power_on = exynos4x12_power_on,
300 .power_off = exynos4x12_power_off,
301 },
302 {
303 .label = "host",
304 .id = EXYNOS4x12_HOST,
305 .power_on = exynos4x12_power_on,
306 .power_off = exynos4x12_power_off,
307 },
308 {
309 .label = "hsic0",
310 .id = EXYNOS4x12_HSIC0,
311 .power_on = exynos4x12_power_on,
312 .power_off = exynos4x12_power_off,
313 },
314 {
315 .label = "hsic1",
316 .id = EXYNOS4x12_HSIC1,
317 .power_on = exynos4x12_power_on,
318 .power_off = exynos4x12_power_off,
319 },
320 {},
321};
322
323const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config = {
324 .has_mode_switch = 1,
325 .num_phys = EXYNOS4x12_NUM_PHYS,
326 .phys = exynos4x12_phys,
327 .rate_to_clk = exynos4x12_rate_to_clk,
328};
diff --git a/drivers/phy/phy-exynos5250-sata.c b/drivers/phy/phy-exynos5250-sata.c
new file mode 100644
index 000000000000..c9361b731fa6
--- /dev/null
+++ b/drivers/phy/phy-exynos5250-sata.c
@@ -0,0 +1,251 @@
1/*
2 * Samsung SATA SerDes(PHY) driver
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Authors: Girish K S <ks.giri@samsung.com>
6 * Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/clk.h>
14#include <linux/delay.h>
15#include <linux/io.h>
16#include <linux/i2c.h>
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/of.h>
20#include <linux/of_address.h>
21#include <linux/phy/phy.h>
22#include <linux/platform_device.h>
23#include <linux/regmap.h>
24#include <linux/spinlock.h>
25#include <linux/mfd/syscon.h>
26
27#define SATAPHY_CONTROL_OFFSET 0x0724
28#define EXYNOS5_SATAPHY_PMU_ENABLE BIT(0)
29#define EXYNOS5_SATA_RESET 0x4
30#define RESET_GLOBAL_RST_N BIT(0)
31#define RESET_CMN_RST_N BIT(1)
32#define RESET_CMN_BLOCK_RST_N BIT(2)
33#define RESET_CMN_I2C_RST_N BIT(3)
34#define RESET_TX_RX_PIPE_RST_N BIT(4)
35#define RESET_TX_RX_BLOCK_RST_N BIT(5)
36#define RESET_TX_RX_I2C_RST_N (BIT(6) | BIT(7))
37#define LINK_RESET 0xf0000
38#define EXYNOS5_SATA_MODE0 0x10
39#define SATA_SPD_GEN3 BIT(1)
40#define EXYNOS5_SATA_CTRL0 0x14
41#define CTRL0_P0_PHY_CALIBRATED_SEL BIT(9)
42#define CTRL0_P0_PHY_CALIBRATED BIT(8)
43#define EXYNOS5_SATA_PHSATA_CTRLM 0xe0
44#define PHCTRLM_REF_RATE BIT(1)
45#define PHCTRLM_HIGH_SPEED BIT(0)
46#define EXYNOS5_SATA_PHSATA_STATM 0xf0
47#define PHSTATM_PLL_LOCKED BIT(0)
48
49#define PHY_PLL_TIMEOUT (usecs_to_jiffies(1000))
50
51struct exynos_sata_phy {
52 struct phy *phy;
53 struct clk *phyclk;
54 void __iomem *regs;
55 struct regmap *pmureg;
56 struct i2c_client *client;
57};
58
59static int wait_for_reg_status(void __iomem *base, u32 reg, u32 checkbit,
60 u32 status)
61{
62 unsigned long timeout = jiffies + PHY_PLL_TIMEOUT;
63
64 while (time_before(jiffies, timeout)) {
65 if ((readl(base + reg) & checkbit) == status)
66 return 0;
67 }
68
69 return -EFAULT;
70}
71
72static int exynos_sata_phy_power_on(struct phy *phy)
73{
74 struct exynos_sata_phy *sata_phy = phy_get_drvdata(phy);
75
76 return regmap_update_bits(sata_phy->pmureg, SATAPHY_CONTROL_OFFSET,
77 EXYNOS5_SATAPHY_PMU_ENABLE, true);
78
79}
80
81static int exynos_sata_phy_power_off(struct phy *phy)
82{
83 struct exynos_sata_phy *sata_phy = phy_get_drvdata(phy);
84
85 return regmap_update_bits(sata_phy->pmureg, SATAPHY_CONTROL_OFFSET,
86 EXYNOS5_SATAPHY_PMU_ENABLE, false);
87
88}
89
90static int exynos_sata_phy_init(struct phy *phy)
91{
92 u32 val = 0;
93 int ret = 0;
94 u8 buf[] = { 0x3a, 0x0b };
95 struct exynos_sata_phy *sata_phy = phy_get_drvdata(phy);
96
97 ret = regmap_update_bits(sata_phy->pmureg, SATAPHY_CONTROL_OFFSET,
98 EXYNOS5_SATAPHY_PMU_ENABLE, true);
99 if (ret != 0)
100 dev_err(&sata_phy->phy->dev, "phy init failed\n");
101
102 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
103
104 val = readl(sata_phy->regs + EXYNOS5_SATA_RESET);
105 val |= RESET_GLOBAL_RST_N | RESET_CMN_RST_N | RESET_CMN_BLOCK_RST_N
106 | RESET_CMN_I2C_RST_N | RESET_TX_RX_PIPE_RST_N
107 | RESET_TX_RX_BLOCK_RST_N | RESET_TX_RX_I2C_RST_N;
108 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
109
110 val = readl(sata_phy->regs + EXYNOS5_SATA_RESET);
111 val |= LINK_RESET;
112 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
113
114 val = readl(sata_phy->regs + EXYNOS5_SATA_RESET);
115 val |= RESET_CMN_RST_N;
116 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
117
118 val = readl(sata_phy->regs + EXYNOS5_SATA_PHSATA_CTRLM);
119 val &= ~PHCTRLM_REF_RATE;
120 writel(val, sata_phy->regs + EXYNOS5_SATA_PHSATA_CTRLM);
121
122 /* High speed enable for Gen3 */
123 val = readl(sata_phy->regs + EXYNOS5_SATA_PHSATA_CTRLM);
124 val |= PHCTRLM_HIGH_SPEED;
125 writel(val, sata_phy->regs + EXYNOS5_SATA_PHSATA_CTRLM);
126
127 val = readl(sata_phy->regs + EXYNOS5_SATA_CTRL0);
128 val |= CTRL0_P0_PHY_CALIBRATED_SEL | CTRL0_P0_PHY_CALIBRATED;
129 writel(val, sata_phy->regs + EXYNOS5_SATA_CTRL0);
130
131 val = readl(sata_phy->regs + EXYNOS5_SATA_MODE0);
132 val |= SATA_SPD_GEN3;
133 writel(val, sata_phy->regs + EXYNOS5_SATA_MODE0);
134
135 ret = i2c_master_send(sata_phy->client, buf, sizeof(buf));
136 if (ret < 0)
137 return ret;
138
139 /* release cmu reset */
140 val = readl(sata_phy->regs + EXYNOS5_SATA_RESET);
141 val &= ~RESET_CMN_RST_N;
142 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
143
144 val = readl(sata_phy->regs + EXYNOS5_SATA_RESET);
145 val |= RESET_CMN_RST_N;
146 writel(val, sata_phy->regs + EXYNOS5_SATA_RESET);
147
148 ret = wait_for_reg_status(sata_phy->regs,
149 EXYNOS5_SATA_PHSATA_STATM,
150 PHSTATM_PLL_LOCKED, 1);
151 if (ret < 0)
152 dev_err(&sata_phy->phy->dev,
153 "PHY PLL locking failed\n");
154 return ret;
155}
156
157static struct phy_ops exynos_sata_phy_ops = {
158 .init = exynos_sata_phy_init,
159 .power_on = exynos_sata_phy_power_on,
160 .power_off = exynos_sata_phy_power_off,
161 .owner = THIS_MODULE,
162};
163
164static int exynos_sata_phy_probe(struct platform_device *pdev)
165{
166 struct exynos_sata_phy *sata_phy;
167 struct device *dev = &pdev->dev;
168 struct resource *res;
169 struct phy_provider *phy_provider;
170 struct device_node *node;
171 int ret = 0;
172
173 sata_phy = devm_kzalloc(dev, sizeof(*sata_phy), GFP_KERNEL);
174 if (!sata_phy)
175 return -ENOMEM;
176
177 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
178
179 sata_phy->regs = devm_ioremap_resource(dev, res);
180 if (IS_ERR(sata_phy->regs))
181 return PTR_ERR(sata_phy->regs);
182
183 sata_phy->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
184 "samsung,syscon-phandle");
185 if (IS_ERR(sata_phy->pmureg)) {
186 dev_err(dev, "syscon regmap lookup failed.\n");
187 return PTR_ERR(sata_phy->pmureg);
188 }
189
190 node = of_parse_phandle(dev->of_node,
191 "samsung,exynos-sataphy-i2c-phandle", 0);
192 if (!node)
193 return -EINVAL;
194
195 sata_phy->client = of_find_i2c_device_by_node(node);
196 if (!sata_phy->client)
197 return -EPROBE_DEFER;
198
199 dev_set_drvdata(dev, sata_phy);
200
201 sata_phy->phyclk = devm_clk_get(dev, "sata_phyctrl");
202 if (IS_ERR(sata_phy->phyclk)) {
203 dev_err(dev, "failed to get clk for PHY\n");
204 return PTR_ERR(sata_phy->phyclk);
205 }
206
207 ret = clk_prepare_enable(sata_phy->phyclk);
208 if (ret < 0) {
209 dev_err(dev, "failed to enable source clk\n");
210 return ret;
211 }
212
213 sata_phy->phy = devm_phy_create(dev, &exynos_sata_phy_ops, NULL);
214 if (IS_ERR(sata_phy->phy)) {
215 clk_disable_unprepare(sata_phy->phyclk);
216 dev_err(dev, "failed to create PHY\n");
217 return PTR_ERR(sata_phy->phy);
218 }
219
220 phy_set_drvdata(sata_phy->phy, sata_phy);
221
222 phy_provider = devm_of_phy_provider_register(dev,
223 of_phy_simple_xlate);
224 if (IS_ERR(phy_provider)) {
225 clk_disable_unprepare(sata_phy->phyclk);
226 return PTR_ERR(phy_provider);
227 }
228
229 return 0;
230}
231
232static const struct of_device_id exynos_sata_phy_of_match[] = {
233 { .compatible = "samsung,exynos5250-sata-phy" },
234 { },
235};
236MODULE_DEVICE_TABLE(of, exynos_sata_phy_of_match);
237
238static struct platform_driver exynos_sata_phy_driver = {
239 .probe = exynos_sata_phy_probe,
240 .driver = {
241 .of_match_table = exynos_sata_phy_of_match,
242 .name = "samsung,sata-phy",
243 .owner = THIS_MODULE,
244 }
245};
246module_platform_driver(exynos_sata_phy_driver);
247
248MODULE_DESCRIPTION("Samsung SerDes PHY driver");
249MODULE_LICENSE("GPL V2");
250MODULE_AUTHOR("Girish K S <ks.giri@samsung.com>");
251MODULE_AUTHOR("Yuvaraj C D <yuvaraj.cd@samsung.com>");
diff --git a/drivers/phy/phy-exynos5250-usb2.c b/drivers/phy/phy-exynos5250-usb2.c
new file mode 100644
index 000000000000..94179afda951
--- /dev/null
+++ b/drivers/phy/phy-exynos5250-usb2.c
@@ -0,0 +1,404 @@
1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver - Exynos 5250 support
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/delay.h>
13#include <linux/io.h>
14#include <linux/phy/phy.h>
15#include <linux/regmap.h>
16#include "phy-samsung-usb2.h"
17
18/* Exynos USB PHY registers */
19#define EXYNOS_5250_REFCLKSEL_CRYSTAL 0x0
20#define EXYNOS_5250_REFCLKSEL_XO 0x1
21#define EXYNOS_5250_REFCLKSEL_CLKCORE 0x2
22
23#define EXYNOS_5250_FSEL_9MHZ6 0x0
24#define EXYNOS_5250_FSEL_10MHZ 0x1
25#define EXYNOS_5250_FSEL_12MHZ 0x2
26#define EXYNOS_5250_FSEL_19MHZ2 0x3
27#define EXYNOS_5250_FSEL_20MHZ 0x4
28#define EXYNOS_5250_FSEL_24MHZ 0x5
29#define EXYNOS_5250_FSEL_50MHZ 0x7
30
31/* Normal host */
32#define EXYNOS_5250_HOSTPHYCTRL0 0x0
33
34#define EXYNOS_5250_HOSTPHYCTRL0_PHYSWRSTALL BIT(31)
35#define EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_SHIFT 19
36#define EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_MASK \
37 (0x3 << EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_SHIFT)
38#define EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT 16
39#define EXYNOS_5250_HOSTPHYCTRL0_FSEL_MASK \
40 (0x7 << EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT)
41#define EXYNOS_5250_HOSTPHYCTRL0_TESTBURNIN BIT(11)
42#define EXYNOS_5250_HOSTPHYCTRL0_RETENABLE BIT(10)
43#define EXYNOS_5250_HOSTPHYCTRL0_COMMON_ON_N BIT(9)
44#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_MASK (0x3 << 7)
45#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_DUAL (0x0 << 7)
46#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_ID0 (0x1 << 7)
47#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_ANALOGTEST (0x2 << 7)
48#define EXYNOS_5250_HOSTPHYCTRL0_SIDDQ BIT(6)
49#define EXYNOS_5250_HOSTPHYCTRL0_FORCESLEEP BIT(5)
50#define EXYNOS_5250_HOSTPHYCTRL0_FORCESUSPEND BIT(4)
51#define EXYNOS_5250_HOSTPHYCTRL0_WORDINTERFACE BIT(3)
52#define EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST BIT(2)
53#define EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST BIT(1)
54#define EXYNOS_5250_HOSTPHYCTRL0_PHYSWRST BIT(0)
55
56/* HSIC0 & HSIC1 */
57#define EXYNOS_5250_HSICPHYCTRL1 0x10
58#define EXYNOS_5250_HSICPHYCTRL2 0x20
59
60#define EXYNOS_5250_HSICPHYCTRLX_REFCLKSEL_MASK (0x3 << 23)
61#define EXYNOS_5250_HSICPHYCTRLX_REFCLKSEL_DEFAULT (0x2 << 23)
62#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_MASK (0x7f << 16)
63#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_12 (0x24 << 16)
64#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_15 (0x1c << 16)
65#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_16 (0x1a << 16)
66#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_19_2 (0x15 << 16)
67#define EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_20 (0x14 << 16)
68#define EXYNOS_5250_HSICPHYCTRLX_SIDDQ BIT(6)
69#define EXYNOS_5250_HSICPHYCTRLX_FORCESLEEP BIT(5)
70#define EXYNOS_5250_HSICPHYCTRLX_FORCESUSPEND BIT(4)
71#define EXYNOS_5250_HSICPHYCTRLX_WORDINTERFACE BIT(3)
72#define EXYNOS_5250_HSICPHYCTRLX_UTMISWRST BIT(2)
73#define EXYNOS_5250_HSICPHYCTRLX_PHYSWRST BIT(0)
74
75/* EHCI control */
76#define EXYNOS_5250_HOSTEHCICTRL 0x30
77#define EXYNOS_5250_HOSTEHCICTRL_ENAINCRXALIGN BIT(29)
78#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR4 BIT(28)
79#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR8 BIT(27)
80#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR16 BIT(26)
81#define EXYNOS_5250_HOSTEHCICTRL_AUTOPPDONOVRCUREN BIT(25)
82#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT 19
83#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_MASK \
84 (0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT)
85#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_SHIFT 13
86#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_MASK \
87 (0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_SHIFT)
88#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL2_SHIFT 7
89#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_MASK \
90 (0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT)
91#define EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_SHIFT 1
92#define EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_MASK \
93 (0x1 << EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_SHIFT)
94#define EXYNOS_5250_HOSTEHCICTRL_SIMULATIONMODE BIT(0)
95
96/* OHCI control */
97#define EXYNOS_5250_HOSTOHCICTRL 0x34
98#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_SHIFT 1
99#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_MASK \
100 (0x3ff << EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_SHIFT)
101#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVALEN BIT(0)
102
103/* USBOTG */
104#define EXYNOS_5250_USBOTGSYS 0x38
105#define EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET BIT(14)
106#define EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG BIT(13)
107#define EXYNOS_5250_USBOTGSYS_PHY_SW_RST BIT(12)
108#define EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT 9
109#define EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK \
110 (0x3 << EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT)
111#define EXYNOS_5250_USBOTGSYS_ID_PULLUP BIT(8)
112#define EXYNOS_5250_USBOTGSYS_COMMON_ON BIT(7)
113#define EXYNOS_5250_USBOTGSYS_FSEL_SHIFT 4
114#define EXYNOS_5250_USBOTGSYS_FSEL_MASK \
115 (0x3 << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT)
116#define EXYNOS_5250_USBOTGSYS_FORCE_SLEEP BIT(3)
117#define EXYNOS_5250_USBOTGSYS_OTGDISABLE BIT(2)
118#define EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG BIT(1)
119#define EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND BIT(0)
120
121/* Isolation, configured in the power management unit */
122#define EXYNOS_5250_USB_ISOL_OTG_OFFSET 0x704
123#define EXYNOS_5250_USB_ISOL_OTG BIT(0)
124#define EXYNOS_5250_USB_ISOL_HOST_OFFSET 0x708
125#define EXYNOS_5250_USB_ISOL_HOST BIT(0)
126
127/* Mode swtich register */
128#define EXYNOS_5250_MODE_SWITCH_OFFSET 0x230
129#define EXYNOS_5250_MODE_SWITCH_MASK 1
130#define EXYNOS_5250_MODE_SWITCH_DEVICE 0
131#define EXYNOS_5250_MODE_SWITCH_HOST 1
132
133enum exynos4x12_phy_id {
134 EXYNOS5250_DEVICE,
135 EXYNOS5250_HOST,
136 EXYNOS5250_HSIC0,
137 EXYNOS5250_HSIC1,
138 EXYNOS5250_NUM_PHYS,
139};
140
141/*
142 * exynos5250_rate_to_clk() converts the supplied clock rate to the value that
143 * can be written to the phy register.
144 */
145static int exynos5250_rate_to_clk(unsigned long rate, u32 *reg)
146{
147 /* EXYNOS_5250_FSEL_MASK */
148
149 switch (rate) {
150 case 9600 * KHZ:
151 *reg = EXYNOS_5250_FSEL_9MHZ6;
152 break;
153 case 10 * MHZ:
154 *reg = EXYNOS_5250_FSEL_10MHZ;
155 break;
156 case 12 * MHZ:
157 *reg = EXYNOS_5250_FSEL_12MHZ;
158 break;
159 case 19200 * KHZ:
160 *reg = EXYNOS_5250_FSEL_19MHZ2;
161 break;
162 case 20 * MHZ:
163 *reg = EXYNOS_5250_FSEL_20MHZ;
164 break;
165 case 24 * MHZ:
166 *reg = EXYNOS_5250_FSEL_24MHZ;
167 break;
168 case 50 * MHZ:
169 *reg = EXYNOS_5250_FSEL_50MHZ;
170 break;
171 default:
172 return -EINVAL;
173 }
174
175 return 0;
176}
177
178static void exynos5250_isol(struct samsung_usb2_phy_instance *inst, bool on)
179{
180 struct samsung_usb2_phy_driver *drv = inst->drv;
181 u32 offset;
182 u32 mask;
183
184 switch (inst->cfg->id) {
185 case EXYNOS5250_DEVICE:
186 offset = EXYNOS_5250_USB_ISOL_OTG_OFFSET;
187 mask = EXYNOS_5250_USB_ISOL_OTG;
188 break;
189 case EXYNOS5250_HOST:
190 offset = EXYNOS_5250_USB_ISOL_HOST_OFFSET;
191 mask = EXYNOS_5250_USB_ISOL_HOST;
192 break;
193 default:
194 return;
195 };
196
197 regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
198}
199
200static int exynos5250_power_on(struct samsung_usb2_phy_instance *inst)
201{
202 struct samsung_usb2_phy_driver *drv = inst->drv;
203 u32 ctrl0;
204 u32 otg;
205 u32 ehci;
206 u32 ohci;
207 u32 hsic;
208
209 switch (inst->cfg->id) {
210 case EXYNOS5250_DEVICE:
211 regmap_update_bits(drv->reg_sys,
212 EXYNOS_5250_MODE_SWITCH_OFFSET,
213 EXYNOS_5250_MODE_SWITCH_MASK,
214 EXYNOS_5250_MODE_SWITCH_DEVICE);
215
216 /* OTG configuration */
217 otg = readl(drv->reg_phy + EXYNOS_5250_USBOTGSYS);
218 /* The clock */
219 otg &= ~EXYNOS_5250_USBOTGSYS_FSEL_MASK;
220 otg |= drv->ref_reg_val << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT;
221 /* Reset */
222 otg &= ~(EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND |
223 EXYNOS_5250_USBOTGSYS_FORCE_SLEEP |
224 EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG);
225 otg |= EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
226 EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET |
227 EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
228 EXYNOS_5250_USBOTGSYS_OTGDISABLE;
229 /* Ref clock */
230 otg &= ~EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK;
231 otg |= EXYNOS_5250_REFCLKSEL_CLKCORE <<
232 EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT;
233 writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
234 udelay(100);
235 otg &= ~(EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
236 EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
237 EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET |
238 EXYNOS_5250_USBOTGSYS_OTGDISABLE);
239 writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
240
241
242 break;
243 case EXYNOS5250_HOST:
244 case EXYNOS5250_HSIC0:
245 case EXYNOS5250_HSIC1:
246 /* Host registers configuration */
247 ctrl0 = readl(drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
248 /* The clock */
249 ctrl0 &= ~EXYNOS_5250_HOSTPHYCTRL0_FSEL_MASK;
250 ctrl0 |= drv->ref_reg_val <<
251 EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT;
252
253 /* Reset */
254 ctrl0 &= ~(EXYNOS_5250_HOSTPHYCTRL0_PHYSWRST |
255 EXYNOS_5250_HOSTPHYCTRL0_PHYSWRSTALL |
256 EXYNOS_5250_HOSTPHYCTRL0_SIDDQ |
257 EXYNOS_5250_HOSTPHYCTRL0_FORCESUSPEND |
258 EXYNOS_5250_HOSTPHYCTRL0_FORCESLEEP);
259 ctrl0 |= EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST |
260 EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST |
261 EXYNOS_5250_HOSTPHYCTRL0_COMMON_ON_N;
262 writel(ctrl0, drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
263 udelay(10);
264 ctrl0 &= ~(EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST |
265 EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST);
266 writel(ctrl0, drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
267
268 /* OTG configuration */
269 otg = readl(drv->reg_phy + EXYNOS_5250_USBOTGSYS);
270 /* The clock */
271 otg &= ~EXYNOS_5250_USBOTGSYS_FSEL_MASK;
272 otg |= drv->ref_reg_val << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT;
273 /* Reset */
274 otg &= ~(EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND |
275 EXYNOS_5250_USBOTGSYS_FORCE_SLEEP |
276 EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG);
277 otg |= EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
278 EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET |
279 EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
280 EXYNOS_5250_USBOTGSYS_OTGDISABLE;
281 /* Ref clock */
282 otg &= ~EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK;
283 otg |= EXYNOS_5250_REFCLKSEL_CLKCORE <<
284 EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT;
285 writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
286 udelay(10);
287 otg &= ~(EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
288 EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
289 EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET);
290
291 /* HSIC phy configuration */
292 hsic = (EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_12 |
293 EXYNOS_5250_HSICPHYCTRLX_REFCLKSEL_DEFAULT |
294 EXYNOS_5250_HSICPHYCTRLX_PHYSWRST);
295 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL1);
296 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL2);
297 udelay(10);
298 hsic &= ~EXYNOS_5250_HSICPHYCTRLX_PHYSWRST;
299 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL1);
300 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL2);
301 /* The following delay is necessary for the reset sequence to be
302 * completed */
303 udelay(80);
304
305 /* Enable EHCI DMA burst */
306 ehci = readl(drv->reg_phy + EXYNOS_5250_HOSTEHCICTRL);
307 ehci |= EXYNOS_5250_HOSTEHCICTRL_ENAINCRXALIGN |
308 EXYNOS_5250_HOSTEHCICTRL_ENAINCR4 |
309 EXYNOS_5250_HOSTEHCICTRL_ENAINCR8 |
310 EXYNOS_5250_HOSTEHCICTRL_ENAINCR16;
311 writel(ehci, drv->reg_phy + EXYNOS_5250_HOSTEHCICTRL);
312
313 /* OHCI settings */
314 ohci = readl(drv->reg_phy + EXYNOS_5250_HOSTOHCICTRL);
315 /* Following code is based on the old driver */
316 ohci |= 0x1 << 3;
317 writel(ohci, drv->reg_phy + EXYNOS_5250_HOSTOHCICTRL);
318
319 break;
320 }
321 inst->enabled = 1;
322 exynos5250_isol(inst, 0);
323
324 return 0;
325}
326
327static int exynos5250_power_off(struct samsung_usb2_phy_instance *inst)
328{
329 struct samsung_usb2_phy_driver *drv = inst->drv;
330 u32 ctrl0;
331 u32 otg;
332 u32 hsic;
333
334 inst->enabled = 0;
335 exynos5250_isol(inst, 1);
336
337 switch (inst->cfg->id) {
338 case EXYNOS5250_DEVICE:
339 otg = readl(drv->reg_phy + EXYNOS_5250_USBOTGSYS);
340 otg |= (EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND |
341 EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG |
342 EXYNOS_5250_USBOTGSYS_FORCE_SLEEP);
343 writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
344 break;
345 case EXYNOS5250_HOST:
346 ctrl0 = readl(drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
347 ctrl0 |= (EXYNOS_5250_HOSTPHYCTRL0_SIDDQ |
348 EXYNOS_5250_HOSTPHYCTRL0_FORCESUSPEND |
349 EXYNOS_5250_HOSTPHYCTRL0_FORCESLEEP |
350 EXYNOS_5250_HOSTPHYCTRL0_PHYSWRST |
351 EXYNOS_5250_HOSTPHYCTRL0_PHYSWRSTALL);
352 writel(ctrl0, drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
353 break;
354 case EXYNOS5250_HSIC0:
355 case EXYNOS5250_HSIC1:
356 hsic = (EXYNOS_5250_HSICPHYCTRLX_REFCLKDIV_12 |
357 EXYNOS_5250_HSICPHYCTRLX_REFCLKSEL_DEFAULT |
358 EXYNOS_5250_HSICPHYCTRLX_SIDDQ |
359 EXYNOS_5250_HSICPHYCTRLX_FORCESLEEP |
360 EXYNOS_5250_HSICPHYCTRLX_FORCESUSPEND
361 );
362 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL1);
363 writel(hsic, drv->reg_phy + EXYNOS_5250_HSICPHYCTRL2);
364 break;
365 }
366
367 return 0;
368}
369
370
371static const struct samsung_usb2_common_phy exynos5250_phys[] = {
372 {
373 .label = "device",
374 .id = EXYNOS5250_DEVICE,
375 .power_on = exynos5250_power_on,
376 .power_off = exynos5250_power_off,
377 },
378 {
379 .label = "host",
380 .id = EXYNOS5250_HOST,
381 .power_on = exynos5250_power_on,
382 .power_off = exynos5250_power_off,
383 },
384 {
385 .label = "hsic0",
386 .id = EXYNOS5250_HSIC0,
387 .power_on = exynos5250_power_on,
388 .power_off = exynos5250_power_off,
389 },
390 {
391 .label = "hsic1",
392 .id = EXYNOS5250_HSIC1,
393 .power_on = exynos5250_power_on,
394 .power_off = exynos5250_power_off,
395 },
396 {},
397};
398
399const struct samsung_usb2_phy_config exynos5250_usb2_phy_config = {
400 .has_mode_switch = 1,
401 .num_phys = EXYNOS5250_NUM_PHYS,
402 .phys = exynos5250_phys,
403 .rate_to_clk = exynos5250_rate_to_clk,
404};
diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/phy/phy-omap-control.c
index e7253182e47d..311b4f9a5132 100644
--- a/drivers/usb/phy/phy-omap-control.c
+++ b/drivers/phy/phy-omap-control.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * omap-control-usb.c - The USB part of control module. 2 * omap-control-phy.c - The PHY part of control module.
3 * 3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com 4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
@@ -24,36 +24,36 @@
24#include <linux/err.h> 24#include <linux/err.h>
25#include <linux/io.h> 25#include <linux/io.h>
26#include <linux/clk.h> 26#include <linux/clk.h>
27#include <linux/usb/omap_control_usb.h> 27#include <linux/phy/omap_control_phy.h>
28 28
29/** 29/**
30 * omap_control_usb_phy_power - power on/off the phy using control module reg 30 * omap_control_phy_power - power on/off the phy using control module reg
31 * @dev: the control module device 31 * @dev: the control module device
32 * @on: 0 or 1, based on powering on or off the PHY 32 * @on: 0 or 1, based on powering on or off the PHY
33 */ 33 */
34void omap_control_usb_phy_power(struct device *dev, int on) 34void omap_control_phy_power(struct device *dev, int on)
35{ 35{
36 u32 val; 36 u32 val;
37 unsigned long rate; 37 unsigned long rate;
38 struct omap_control_usb *control_usb; 38 struct omap_control_phy *control_phy;
39 39
40 if (IS_ERR(dev) || !dev) { 40 if (IS_ERR(dev) || !dev) {
41 pr_err("%s: invalid device\n", __func__); 41 pr_err("%s: invalid device\n", __func__);
42 return; 42 return;
43 } 43 }
44 44
45 control_usb = dev_get_drvdata(dev); 45 control_phy = dev_get_drvdata(dev);
46 if (!control_usb) { 46 if (!control_phy) {
47 dev_err(dev, "%s: invalid control usb device\n", __func__); 47 dev_err(dev, "%s: invalid control phy device\n", __func__);
48 return; 48 return;
49 } 49 }
50 50
51 if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) 51 if (control_phy->type == OMAP_CTRL_TYPE_OTGHS)
52 return; 52 return;
53 53
54 val = readl(control_usb->power); 54 val = readl(control_phy->power);
55 55
56 switch (control_usb->type) { 56 switch (control_phy->type) {
57 case OMAP_CTRL_TYPE_USB2: 57 case OMAP_CTRL_TYPE_USB2:
58 if (on) 58 if (on)
59 val &= ~OMAP_CTRL_DEV_PHY_PD; 59 val &= ~OMAP_CTRL_DEV_PHY_PD;
@@ -62,19 +62,20 @@ void omap_control_usb_phy_power(struct device *dev, int on)
62 break; 62 break;
63 63
64 case OMAP_CTRL_TYPE_PIPE3: 64 case OMAP_CTRL_TYPE_PIPE3:
65 rate = clk_get_rate(control_usb->sys_clk); 65 rate = clk_get_rate(control_phy->sys_clk);
66 rate = rate/1000000; 66 rate = rate/1000000;
67 67
68 if (on) { 68 if (on) {
69 val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK | 69 val &= ~(OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
70 OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK); 70 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
71 val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON << 71 val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON <<
72 OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; 72 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
73 val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT; 73 val |= rate <<
74 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
74 } else { 75 } else {
75 val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK; 76 val &= ~OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
76 val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF << 77 val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF <<
77 OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; 78 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
78 } 79 }
79 break; 80 break;
80 81
@@ -100,66 +101,66 @@ void omap_control_usb_phy_power(struct device *dev, int on)
100 break; 101 break;
101 default: 102 default:
102 dev_err(dev, "%s: type %d not recognized\n", 103 dev_err(dev, "%s: type %d not recognized\n",
103 __func__, control_usb->type); 104 __func__, control_phy->type);
104 break; 105 break;
105 } 106 }
106 107
107 writel(val, control_usb->power); 108 writel(val, control_phy->power);
108} 109}
109EXPORT_SYMBOL_GPL(omap_control_usb_phy_power); 110EXPORT_SYMBOL_GPL(omap_control_phy_power);
110 111
111/** 112/**
112 * omap_control_usb_host_mode - set AVALID, VBUSVALID and ID pin in grounded 113 * omap_control_usb_host_mode - set AVALID, VBUSVALID and ID pin in grounded
113 * @ctrl_usb: struct omap_control_usb * 114 * @ctrl_phy: struct omap_control_phy *
114 * 115 *
115 * Writes to the mailbox register to notify the usb core that a usb 116 * Writes to the mailbox register to notify the usb core that a usb
116 * device has been connected. 117 * device has been connected.
117 */ 118 */
118static void omap_control_usb_host_mode(struct omap_control_usb *ctrl_usb) 119static void omap_control_usb_host_mode(struct omap_control_phy *ctrl_phy)
119{ 120{
120 u32 val; 121 u32 val;
121 122
122 val = readl(ctrl_usb->otghs_control); 123 val = readl(ctrl_phy->otghs_control);
123 val &= ~(OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND); 124 val &= ~(OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND);
124 val |= OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID; 125 val |= OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID;
125 writel(val, ctrl_usb->otghs_control); 126 writel(val, ctrl_phy->otghs_control);
126} 127}
127 128
128/** 129/**
129 * omap_control_usb_device_mode - set AVALID, VBUSVALID and ID pin in high 130 * omap_control_usb_device_mode - set AVALID, VBUSVALID and ID pin in high
130 * impedance 131 * impedance
131 * @ctrl_usb: struct omap_control_usb * 132 * @ctrl_phy: struct omap_control_phy *
132 * 133 *
133 * Writes to the mailbox register to notify the usb core that it has been 134 * Writes to the mailbox register to notify the usb core that it has been
134 * connected to a usb host. 135 * connected to a usb host.
135 */ 136 */
136static void omap_control_usb_device_mode(struct omap_control_usb *ctrl_usb) 137static void omap_control_usb_device_mode(struct omap_control_phy *ctrl_phy)
137{ 138{
138 u32 val; 139 u32 val;
139 140
140 val = readl(ctrl_usb->otghs_control); 141 val = readl(ctrl_phy->otghs_control);
141 val &= ~OMAP_CTRL_DEV_SESSEND; 142 val &= ~OMAP_CTRL_DEV_SESSEND;
142 val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_AVALID | 143 val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_AVALID |
143 OMAP_CTRL_DEV_VBUSVALID; 144 OMAP_CTRL_DEV_VBUSVALID;
144 writel(val, ctrl_usb->otghs_control); 145 writel(val, ctrl_phy->otghs_control);
145} 146}
146 147
147/** 148/**
148 * omap_control_usb_set_sessionend - Enable SESSIONEND and IDIG to high 149 * omap_control_usb_set_sessionend - Enable SESSIONEND and IDIG to high
149 * impedance 150 * impedance
150 * @ctrl_usb: struct omap_control_usb * 151 * @ctrl_phy: struct omap_control_phy *
151 * 152 *
152 * Writes to the mailbox register to notify the usb core it's now in 153 * Writes to the mailbox register to notify the usb core it's now in
153 * disconnected state. 154 * disconnected state.
154 */ 155 */
155static void omap_control_usb_set_sessionend(struct omap_control_usb *ctrl_usb) 156static void omap_control_usb_set_sessionend(struct omap_control_phy *ctrl_phy)
156{ 157{
157 u32 val; 158 u32 val;
158 159
159 val = readl(ctrl_usb->otghs_control); 160 val = readl(ctrl_phy->otghs_control);
160 val &= ~(OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID); 161 val &= ~(OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID);
161 val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND; 162 val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND;
162 writel(val, ctrl_usb->otghs_control); 163 writel(val, ctrl_phy->otghs_control);
163} 164}
164 165
165/** 166/**
@@ -174,30 +175,30 @@ static void omap_control_usb_set_sessionend(struct omap_control_usb *ctrl_usb)
174void omap_control_usb_set_mode(struct device *dev, 175void omap_control_usb_set_mode(struct device *dev,
175 enum omap_control_usb_mode mode) 176 enum omap_control_usb_mode mode)
176{ 177{
177 struct omap_control_usb *ctrl_usb; 178 struct omap_control_phy *ctrl_phy;
178 179
179 if (IS_ERR(dev) || !dev) 180 if (IS_ERR(dev) || !dev)
180 return; 181 return;
181 182
182 ctrl_usb = dev_get_drvdata(dev); 183 ctrl_phy = dev_get_drvdata(dev);
183 184
184 if (!ctrl_usb) { 185 if (!ctrl_phy) {
185 dev_err(dev, "Invalid control usb device\n"); 186 dev_err(dev, "Invalid control phy device\n");
186 return; 187 return;
187 } 188 }
188 189
189 if (ctrl_usb->type != OMAP_CTRL_TYPE_OTGHS) 190 if (ctrl_phy->type != OMAP_CTRL_TYPE_OTGHS)
190 return; 191 return;
191 192
192 switch (mode) { 193 switch (mode) {
193 case USB_MODE_HOST: 194 case USB_MODE_HOST:
194 omap_control_usb_host_mode(ctrl_usb); 195 omap_control_usb_host_mode(ctrl_phy);
195 break; 196 break;
196 case USB_MODE_DEVICE: 197 case USB_MODE_DEVICE:
197 omap_control_usb_device_mode(ctrl_usb); 198 omap_control_usb_device_mode(ctrl_phy);
198 break; 199 break;
199 case USB_MODE_DISCONNECT: 200 case USB_MODE_DISCONNECT:
200 omap_control_usb_set_sessionend(ctrl_usb); 201 omap_control_usb_set_sessionend(ctrl_phy);
201 break; 202 break;
202 default: 203 default:
203 dev_vdbg(dev, "invalid omap control usb mode\n"); 204 dev_vdbg(dev, "invalid omap control usb mode\n");
@@ -207,13 +208,13 @@ EXPORT_SYMBOL_GPL(omap_control_usb_set_mode);
207 208
208#ifdef CONFIG_OF 209#ifdef CONFIG_OF
209 210
210static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS; 211static const enum omap_control_phy_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
211static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2; 212static const enum omap_control_phy_type usb2_data = OMAP_CTRL_TYPE_USB2;
212static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3; 213static const enum omap_control_phy_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
213static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2; 214static const enum omap_control_phy_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2;
214static const enum omap_control_usb_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2; 215static const enum omap_control_phy_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2;
215 216
216static const struct of_device_id omap_control_usb_id_table[] = { 217static const struct of_device_id omap_control_phy_id_table[] = {
217 { 218 {
218 .compatible = "ti,control-phy-otghs", 219 .compatible = "ti,control-phy-otghs",
219 .data = &otghs_data, 220 .data = &otghs_data,
@@ -227,93 +228,93 @@ static const struct of_device_id omap_control_usb_id_table[] = {
227 .data = &pipe3_data, 228 .data = &pipe3_data,
228 }, 229 },
229 { 230 {
230 .compatible = "ti,control-phy-dra7usb2", 231 .compatible = "ti,control-phy-usb2-dra7",
231 .data = &dra7usb2_data, 232 .data = &dra7usb2_data,
232 }, 233 },
233 { 234 {
234 .compatible = "ti,control-phy-am437usb2", 235 .compatible = "ti,control-phy-usb2-am437",
235 .data = &am437usb2_data, 236 .data = &am437usb2_data,
236 }, 237 },
237 {}, 238 {},
238}; 239};
239MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); 240MODULE_DEVICE_TABLE(of, omap_control_phy_id_table);
240#endif 241#endif
241 242
242 243
243static int omap_control_usb_probe(struct platform_device *pdev) 244static int omap_control_phy_probe(struct platform_device *pdev)
244{ 245{
245 struct resource *res; 246 struct resource *res;
246 const struct of_device_id *of_id; 247 const struct of_device_id *of_id;
247 struct omap_control_usb *control_usb; 248 struct omap_control_phy *control_phy;
248 249
249 of_id = of_match_device(of_match_ptr(omap_control_usb_id_table), 250 of_id = of_match_device(of_match_ptr(omap_control_phy_id_table),
250 &pdev->dev); 251 &pdev->dev);
251 if (!of_id) 252 if (!of_id)
252 return -EINVAL; 253 return -EINVAL;
253 254
254 control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb), 255 control_phy = devm_kzalloc(&pdev->dev, sizeof(*control_phy),
255 GFP_KERNEL); 256 GFP_KERNEL);
256 if (!control_usb) { 257 if (!control_phy) {
257 dev_err(&pdev->dev, "unable to alloc memory for control usb\n"); 258 dev_err(&pdev->dev, "unable to alloc memory for control phy\n");
258 return -ENOMEM; 259 return -ENOMEM;
259 } 260 }
260 261
261 control_usb->dev = &pdev->dev; 262 control_phy->dev = &pdev->dev;
262 control_usb->type = *(enum omap_control_usb_type *)of_id->data; 263 control_phy->type = *(enum omap_control_phy_type *)of_id->data;
263 264
264 if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) { 265 if (control_phy->type == OMAP_CTRL_TYPE_OTGHS) {
265 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, 266 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
266 "otghs_control"); 267 "otghs_control");
267 control_usb->otghs_control = devm_ioremap_resource( 268 control_phy->otghs_control = devm_ioremap_resource(
268 &pdev->dev, res); 269 &pdev->dev, res);
269 if (IS_ERR(control_usb->otghs_control)) 270 if (IS_ERR(control_phy->otghs_control))
270 return PTR_ERR(control_usb->otghs_control); 271 return PTR_ERR(control_phy->otghs_control);
271 } else { 272 } else {
272 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, 273 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
273 "power"); 274 "power");
274 control_usb->power = devm_ioremap_resource(&pdev->dev, res); 275 control_phy->power = devm_ioremap_resource(&pdev->dev, res);
275 if (IS_ERR(control_usb->power)) { 276 if (IS_ERR(control_phy->power)) {
276 dev_err(&pdev->dev, "Couldn't get power register\n"); 277 dev_err(&pdev->dev, "Couldn't get power register\n");
277 return PTR_ERR(control_usb->power); 278 return PTR_ERR(control_phy->power);
278 } 279 }
279 } 280 }
280 281
281 if (control_usb->type == OMAP_CTRL_TYPE_PIPE3) { 282 if (control_phy->type == OMAP_CTRL_TYPE_PIPE3) {
282 control_usb->sys_clk = devm_clk_get(control_usb->dev, 283 control_phy->sys_clk = devm_clk_get(control_phy->dev,
283 "sys_clkin"); 284 "sys_clkin");
284 if (IS_ERR(control_usb->sys_clk)) { 285 if (IS_ERR(control_phy->sys_clk)) {
285 pr_err("%s: unable to get sys_clkin\n", __func__); 286 pr_err("%s: unable to get sys_clkin\n", __func__);
286 return -EINVAL; 287 return -EINVAL;
287 } 288 }
288 } 289 }
289 290
290 dev_set_drvdata(control_usb->dev, control_usb); 291 dev_set_drvdata(control_phy->dev, control_phy);
291 292
292 return 0; 293 return 0;
293} 294}
294 295
295static struct platform_driver omap_control_usb_driver = { 296static struct platform_driver omap_control_phy_driver = {
296 .probe = omap_control_usb_probe, 297 .probe = omap_control_phy_probe,
297 .driver = { 298 .driver = {
298 .name = "omap-control-usb", 299 .name = "omap-control-phy",
299 .owner = THIS_MODULE, 300 .owner = THIS_MODULE,
300 .of_match_table = of_match_ptr(omap_control_usb_id_table), 301 .of_match_table = of_match_ptr(omap_control_phy_id_table),
301 }, 302 },
302}; 303};
303 304
304static int __init omap_control_usb_init(void) 305static int __init omap_control_phy_init(void)
305{ 306{
306 return platform_driver_register(&omap_control_usb_driver); 307 return platform_driver_register(&omap_control_phy_driver);
307} 308}
308subsys_initcall(omap_control_usb_init); 309subsys_initcall(omap_control_phy_init);
309 310
310static void __exit omap_control_usb_exit(void) 311static void __exit omap_control_phy_exit(void)
311{ 312{
312 platform_driver_unregister(&omap_control_usb_driver); 313 platform_driver_unregister(&omap_control_phy_driver);
313} 314}
314module_exit(omap_control_usb_exit); 315module_exit(omap_control_phy_exit);
315 316
316MODULE_ALIAS("platform: omap_control_usb"); 317MODULE_ALIAS("platform: omap_control_phy");
317MODULE_AUTHOR("Texas Instruments Inc."); 318MODULE_AUTHOR("Texas Instruments Inc.");
318MODULE_DESCRIPTION("OMAP Control Module USB Driver"); 319MODULE_DESCRIPTION("OMAP Control Module PHY Driver");
319MODULE_LICENSE("GPL v2"); 320MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 7699752fba11..a2205a841e5e 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -21,16 +21,19 @@
21#include <linux/slab.h> 21#include <linux/slab.h>
22#include <linux/of.h> 22#include <linux/of.h>
23#include <linux/io.h> 23#include <linux/io.h>
24#include <linux/usb/omap_usb.h> 24#include <linux/phy/omap_usb.h>
25#include <linux/usb/phy_companion.h> 25#include <linux/usb/phy_companion.h>
26#include <linux/clk.h> 26#include <linux/clk.h>
27#include <linux/err.h> 27#include <linux/err.h>
28#include <linux/pm_runtime.h> 28#include <linux/pm_runtime.h>
29#include <linux/delay.h> 29#include <linux/delay.h>
30#include <linux/usb/omap_control_usb.h> 30#include <linux/phy/omap_control_phy.h>
31#include <linux/phy/phy.h> 31#include <linux/phy/phy.h>
32#include <linux/of_platform.h> 32#include <linux/of_platform.h>
33 33
34#define USB2PHY_DISCON_BYP_LATCH (1 << 31)
35#define USB2PHY_ANA_CONFIG1 0x4c
36
34/** 37/**
35 * omap_usb2_set_comparator - links the comparator present in the sytem with 38 * omap_usb2_set_comparator - links the comparator present in the sytem with
36 * this phy 39 * this phy
@@ -98,65 +101,116 @@ static int omap_usb_set_peripheral(struct usb_otg *otg,
98 return 0; 101 return 0;
99} 102}
100 103
101static int omap_usb2_suspend(struct usb_phy *x, int suspend) 104static int omap_usb_power_off(struct phy *x)
102{ 105{
103 struct omap_usb *phy = phy_to_omapusb(x); 106 struct omap_usb *phy = phy_get_drvdata(x);
104 int ret;
105 107
106 if (suspend && !phy->is_suspended) { 108 omap_control_phy_power(phy->control_dev, 0);
107 omap_control_usb_phy_power(phy->control_dev, 0);
108 pm_runtime_put_sync(phy->dev);
109 phy->is_suspended = 1;
110 } else if (!suspend && phy->is_suspended) {
111 ret = pm_runtime_get_sync(phy->dev);
112 if (ret < 0) {
113 dev_err(phy->dev, "get_sync failed with err %d\n", ret);
114 return ret;
115 }
116 omap_control_usb_phy_power(phy->control_dev, 1);
117 phy->is_suspended = 0;
118 }
119 109
120 return 0; 110 return 0;
121} 111}
122 112
123static int omap_usb_power_off(struct phy *x) 113static int omap_usb_power_on(struct phy *x)
124{ 114{
125 struct omap_usb *phy = phy_get_drvdata(x); 115 struct omap_usb *phy = phy_get_drvdata(x);
126 116
127 omap_control_usb_phy_power(phy->control_dev, 0); 117 omap_control_phy_power(phy->control_dev, 1);
128 118
129 return 0; 119 return 0;
130} 120}
131 121
132static int omap_usb_power_on(struct phy *x) 122static int omap_usb_init(struct phy *x)
133{ 123{
134 struct omap_usb *phy = phy_get_drvdata(x); 124 struct omap_usb *phy = phy_get_drvdata(x);
135 125 u32 val;
136 omap_control_usb_phy_power(phy->control_dev, 1); 126
127 if (phy->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
128 /*
129 *
130 * Reduce the sensitivity of internal PHY by enabling the
131 * DISCON_BYP_LATCH of the USB2PHY_ANA_CONFIG1 register. This
132 * resolves issues with certain devices which can otherwise
133 * be prone to false disconnects.
134 *
135 */
136 val = omap_usb_readl(phy->phy_base, USB2PHY_ANA_CONFIG1);
137 val |= USB2PHY_DISCON_BYP_LATCH;
138 omap_usb_writel(phy->phy_base, USB2PHY_ANA_CONFIG1, val);
139 }
137 140
138 return 0; 141 return 0;
139} 142}
140 143
141static struct phy_ops ops = { 144static struct phy_ops ops = {
145 .init = omap_usb_init,
142 .power_on = omap_usb_power_on, 146 .power_on = omap_usb_power_on,
143 .power_off = omap_usb_power_off, 147 .power_off = omap_usb_power_off,
144 .owner = THIS_MODULE, 148 .owner = THIS_MODULE,
145}; 149};
146 150
151#ifdef CONFIG_OF
152static const struct usb_phy_data omap_usb2_data = {
153 .label = "omap_usb2",
154 .flags = OMAP_USB2_HAS_START_SRP | OMAP_USB2_HAS_SET_VBUS,
155};
156
157static const struct usb_phy_data omap5_usb2_data = {
158 .label = "omap5_usb2",
159 .flags = 0,
160};
161
162static const struct usb_phy_data dra7x_usb2_data = {
163 .label = "dra7x_usb2",
164 .flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
165};
166
167static const struct usb_phy_data am437x_usb2_data = {
168 .label = "am437x_usb2",
169 .flags = 0,
170};
171
172static const struct of_device_id omap_usb2_id_table[] = {
173 {
174 .compatible = "ti,omap-usb2",
175 .data = &omap_usb2_data,
176 },
177 {
178 .compatible = "ti,omap5-usb2",
179 .data = &omap5_usb2_data,
180 },
181 {
182 .compatible = "ti,dra7x-usb2",
183 .data = &dra7x_usb2_data,
184 },
185 {
186 .compatible = "ti,am437x-usb2",
187 .data = &am437x_usb2_data,
188 },
189 {},
190};
191MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
192#endif
193
147static int omap_usb2_probe(struct platform_device *pdev) 194static int omap_usb2_probe(struct platform_device *pdev)
148{ 195{
149 struct omap_usb *phy; 196 struct omap_usb *phy;
150 struct phy *generic_phy; 197 struct phy *generic_phy;
198 struct resource *res;
151 struct phy_provider *phy_provider; 199 struct phy_provider *phy_provider;
152 struct usb_otg *otg; 200 struct usb_otg *otg;
153 struct device_node *node = pdev->dev.of_node; 201 struct device_node *node = pdev->dev.of_node;
154 struct device_node *control_node; 202 struct device_node *control_node;
155 struct platform_device *control_pdev; 203 struct platform_device *control_pdev;
204 const struct of_device_id *of_id;
205 struct usb_phy_data *phy_data;
206
207 of_id = of_match_device(of_match_ptr(omap_usb2_id_table), &pdev->dev);
156 208
157 if (!node) 209 if (!of_id)
158 return -EINVAL; 210 return -EINVAL;
159 211
212 phy_data = (struct usb_phy_data *)of_id->data;
213
160 phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); 214 phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
161 if (!phy) { 215 if (!phy) {
162 dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n"); 216 dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
@@ -172,11 +226,18 @@ static int omap_usb2_probe(struct platform_device *pdev)
172 phy->dev = &pdev->dev; 226 phy->dev = &pdev->dev;
173 227
174 phy->phy.dev = phy->dev; 228 phy->phy.dev = phy->dev;
175 phy->phy.label = "omap-usb2"; 229 phy->phy.label = phy_data->label;
176 phy->phy.set_suspend = omap_usb2_suspend;
177 phy->phy.otg = otg; 230 phy->phy.otg = otg;
178 phy->phy.type = USB_PHY_TYPE_USB2; 231 phy->phy.type = USB_PHY_TYPE_USB2;
179 232
233 if (phy_data->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
234 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
235 phy->phy_base = devm_ioremap_resource(&pdev->dev, res);
236 if (!phy->phy_base)
237 return -ENOMEM;
238 phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT;
239 }
240
180 control_node = of_parse_phandle(node, "ctrl-module", 0); 241 control_node = of_parse_phandle(node, "ctrl-module", 0);
181 if (!control_node) { 242 if (!control_node) {
182 dev_err(&pdev->dev, "Failed to get control device phandle\n"); 243 dev_err(&pdev->dev, "Failed to get control device phandle\n");
@@ -190,14 +251,14 @@ static int omap_usb2_probe(struct platform_device *pdev)
190 } 251 }
191 252
192 phy->control_dev = &control_pdev->dev; 253 phy->control_dev = &control_pdev->dev;
193 254 omap_control_phy_power(phy->control_dev, 0);
194 phy->is_suspended = 1;
195 omap_control_usb_phy_power(phy->control_dev, 0);
196 255
197 otg->set_host = omap_usb_set_host; 256 otg->set_host = omap_usb_set_host;
198 otg->set_peripheral = omap_usb_set_peripheral; 257 otg->set_peripheral = omap_usb_set_peripheral;
199 otg->set_vbus = omap_usb_set_vbus; 258 if (phy_data->flags & OMAP_USB2_HAS_SET_VBUS)
200 otg->start_srp = omap_usb_start_srp; 259 otg->set_vbus = omap_usb_set_vbus;
260 if (phy_data->flags & OMAP_USB2_HAS_START_SRP)
261 otg->start_srp = omap_usb_start_srp;
201 otg->phy = &phy->phy; 262 otg->phy = &phy->phy;
202 263
203 platform_set_drvdata(pdev, phy); 264 platform_set_drvdata(pdev, phy);
@@ -297,14 +358,6 @@ static const struct dev_pm_ops omap_usb2_pm_ops = {
297#define DEV_PM_OPS NULL 358#define DEV_PM_OPS NULL
298#endif 359#endif
299 360
300#ifdef CONFIG_OF
301static const struct of_device_id omap_usb2_id_table[] = {
302 { .compatible = "ti,omap-usb2" },
303 {}
304};
305MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
306#endif
307
308static struct platform_driver omap_usb2_driver = { 361static struct platform_driver omap_usb2_driver = {
309 .probe = omap_usb2_probe, 362 .probe = omap_usb2_probe,
310 .remove = omap_usb2_remove, 363 .remove = omap_usb2_remove,
diff --git a/drivers/phy/phy-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c
new file mode 100644
index 000000000000..8a8c6bc8709a
--- /dev/null
+++ b/drivers/phy/phy-samsung-usb2.c
@@ -0,0 +1,228 @@
1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/clk.h>
13#include <linux/mfd/syscon.h>
14#include <linux/module.h>
15#include <linux/of.h>
16#include <linux/of_address.h>
17#include <linux/phy/phy.h>
18#include <linux/platform_device.h>
19#include <linux/spinlock.h>
20#include "phy-samsung-usb2.h"
21
22static int samsung_usb2_phy_power_on(struct phy *phy)
23{
24 struct samsung_usb2_phy_instance *inst = phy_get_drvdata(phy);
25 struct samsung_usb2_phy_driver *drv = inst->drv;
26 int ret;
27
28 dev_dbg(drv->dev, "Request to power_on \"%s\" usb phy\n",
29 inst->cfg->label);
30 ret = clk_prepare_enable(drv->clk);
31 if (ret)
32 goto err_main_clk;
33 ret = clk_prepare_enable(drv->ref_clk);
34 if (ret)
35 goto err_instance_clk;
36 if (inst->cfg->power_on) {
37 spin_lock(&drv->lock);
38 ret = inst->cfg->power_on(inst);
39 spin_unlock(&drv->lock);
40 }
41
42 return 0;
43
44err_instance_clk:
45 clk_disable_unprepare(drv->clk);
46err_main_clk:
47 return ret;
48}
49
50static int samsung_usb2_phy_power_off(struct phy *phy)
51{
52 struct samsung_usb2_phy_instance *inst = phy_get_drvdata(phy);
53 struct samsung_usb2_phy_driver *drv = inst->drv;
54 int ret = 0;
55
56 dev_dbg(drv->dev, "Request to power_off \"%s\" usb phy\n",
57 inst->cfg->label);
58 if (inst->cfg->power_off) {
59 spin_lock(&drv->lock);
60 ret = inst->cfg->power_off(inst);
61 spin_unlock(&drv->lock);
62 }
63 clk_disable_unprepare(drv->ref_clk);
64 clk_disable_unprepare(drv->clk);
65 return ret;
66}
67
68static struct phy_ops samsung_usb2_phy_ops = {
69 .power_on = samsung_usb2_phy_power_on,
70 .power_off = samsung_usb2_phy_power_off,
71 .owner = THIS_MODULE,
72};
73
74static struct phy *samsung_usb2_phy_xlate(struct device *dev,
75 struct of_phandle_args *args)
76{
77 struct samsung_usb2_phy_driver *drv;
78
79 drv = dev_get_drvdata(dev);
80 if (!drv)
81 return ERR_PTR(-EINVAL);
82
83 if (WARN_ON(args->args[0] >= drv->cfg->num_phys))
84 return ERR_PTR(-ENODEV);
85
86 return drv->instances[args->args[0]].phy;
87}
88
89static const struct of_device_id samsung_usb2_phy_of_match[] = {
90#ifdef CONFIG_PHY_EXYNOS4210_USB2
91 {
92 .compatible = "samsung,exynos4210-usb2-phy",
93 .data = &exynos4210_usb2_phy_config,
94 },
95#endif
96#ifdef CONFIG_PHY_EXYNOS4X12_USB2
97 {
98 .compatible = "samsung,exynos4x12-usb2-phy",
99 .data = &exynos4x12_usb2_phy_config,
100 },
101#endif
102#ifdef CONFIG_PHY_EXYNOS5250_USB2
103 {
104 .compatible = "samsung,exynos5250-usb2-phy",
105 .data = &exynos5250_usb2_phy_config,
106 },
107#endif
108 { },
109};
110
111static int samsung_usb2_phy_probe(struct platform_device *pdev)
112{
113 const struct of_device_id *match;
114 const struct samsung_usb2_phy_config *cfg;
115 struct device *dev = &pdev->dev;
116 struct phy_provider *phy_provider;
117 struct resource *mem;
118 struct samsung_usb2_phy_driver *drv;
119 int i, ret;
120
121 if (!pdev->dev.of_node) {
122 dev_err(dev, "This driver is required to be instantiated from device tree\n");
123 return -EINVAL;
124 }
125
126 match = of_match_node(samsung_usb2_phy_of_match, pdev->dev.of_node);
127 if (!match) {
128 dev_err(dev, "of_match_node() failed\n");
129 return -EINVAL;
130 }
131 cfg = match->data;
132
133 drv = devm_kzalloc(dev, sizeof(struct samsung_usb2_phy_driver) +
134 cfg->num_phys * sizeof(struct samsung_usb2_phy_instance),
135 GFP_KERNEL);
136 if (!drv)
137 return -ENOMEM;
138
139 dev_set_drvdata(dev, drv);
140 spin_lock_init(&drv->lock);
141
142 drv->cfg = cfg;
143 drv->dev = dev;
144
145 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
146 drv->reg_phy = devm_ioremap_resource(dev, mem);
147 if (IS_ERR(drv->reg_phy)) {
148 dev_err(dev, "Failed to map register memory (phy)\n");
149 return PTR_ERR(drv->reg_phy);
150 }
151
152 drv->reg_pmu = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
153 "samsung,pmureg-phandle");
154 if (IS_ERR(drv->reg_pmu)) {
155 dev_err(dev, "Failed to map PMU registers (via syscon)\n");
156 return PTR_ERR(drv->reg_pmu);
157 }
158
159 if (drv->cfg->has_mode_switch) {
160 drv->reg_sys = syscon_regmap_lookup_by_phandle(
161 pdev->dev.of_node, "samsung,sysreg-phandle");
162 if (IS_ERR(drv->reg_sys)) {
163 dev_err(dev, "Failed to map system registers (via syscon)\n");
164 return PTR_ERR(drv->reg_sys);
165 }
166 }
167
168 drv->clk = devm_clk_get(dev, "phy");
169 if (IS_ERR(drv->clk)) {
170 dev_err(dev, "Failed to get clock of phy controller\n");
171 return PTR_ERR(drv->clk);
172 }
173
174 drv->ref_clk = devm_clk_get(dev, "ref");
175 if (IS_ERR(drv->ref_clk)) {
176 dev_err(dev, "Failed to get reference clock for the phy controller\n");
177 return PTR_ERR(drv->ref_clk);
178 }
179
180 drv->ref_rate = clk_get_rate(drv->ref_clk);
181 if (drv->cfg->rate_to_clk) {
182 ret = drv->cfg->rate_to_clk(drv->ref_rate, &drv->ref_reg_val);
183 if (ret)
184 return ret;
185 }
186
187 for (i = 0; i < drv->cfg->num_phys; i++) {
188 char *label = drv->cfg->phys[i].label;
189 struct samsung_usb2_phy_instance *p = &drv->instances[i];
190
191 dev_dbg(dev, "Creating phy \"%s\"\n", label);
192 p->phy = devm_phy_create(dev, &samsung_usb2_phy_ops, NULL);
193 if (IS_ERR(p->phy)) {
194 dev_err(drv->dev, "Failed to create usb2_phy \"%s\"\n",
195 label);
196 return PTR_ERR(p->phy);
197 }
198
199 p->cfg = &drv->cfg->phys[i];
200 p->drv = drv;
201 phy_set_bus_width(p->phy, 8);
202 phy_set_drvdata(p->phy, p);
203 }
204
205 phy_provider = devm_of_phy_provider_register(dev,
206 samsung_usb2_phy_xlate);
207 if (IS_ERR(phy_provider)) {
208 dev_err(drv->dev, "Failed to register phy provider\n");
209 return PTR_ERR(phy_provider);
210 }
211
212 return 0;
213}
214
215static struct platform_driver samsung_usb2_phy_driver = {
216 .probe = samsung_usb2_phy_probe,
217 .driver = {
218 .of_match_table = samsung_usb2_phy_of_match,
219 .name = "samsung-usb2-phy",
220 .owner = THIS_MODULE,
221 }
222};
223
224module_platform_driver(samsung_usb2_phy_driver);
225MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC USB PHY driver");
226MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");
227MODULE_LICENSE("GPL v2");
228MODULE_ALIAS("platform:samsung-usb2-phy");
diff --git a/drivers/phy/phy-samsung-usb2.h b/drivers/phy/phy-samsung-usb2.h
new file mode 100644
index 000000000000..45b3170652bd
--- /dev/null
+++ b/drivers/phy/phy-samsung-usb2.h
@@ -0,0 +1,67 @@
1/*
2 * Samsung SoC USB 1.1/2.0 PHY driver
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Kamil Debski <k.debski@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef _PHY_EXYNOS_USB2_H
13#define _PHY_EXYNOS_USB2_H
14
15#include <linux/clk.h>
16#include <linux/phy/phy.h>
17#include <linux/device.h>
18#include <linux/regmap.h>
19#include <linux/spinlock.h>
20
21#define KHZ 1000
22#define MHZ (KHZ * KHZ)
23
24struct samsung_usb2_phy_driver;
25struct samsung_usb2_phy_instance;
26struct samsung_usb2_phy_config;
27
28struct samsung_usb2_phy_instance {
29 const struct samsung_usb2_common_phy *cfg;
30 struct phy *phy;
31 struct samsung_usb2_phy_driver *drv;
32 bool enabled;
33};
34
35struct samsung_usb2_phy_driver {
36 const struct samsung_usb2_phy_config *cfg;
37 struct clk *clk;
38 struct clk *ref_clk;
39 unsigned long ref_rate;
40 u32 ref_reg_val;
41 struct device *dev;
42 void __iomem *reg_phy;
43 struct regmap *reg_pmu;
44 struct regmap *reg_sys;
45 spinlock_t lock;
46 struct samsung_usb2_phy_instance instances[0];
47};
48
49struct samsung_usb2_common_phy {
50 int (*power_on)(struct samsung_usb2_phy_instance *);
51 int (*power_off)(struct samsung_usb2_phy_instance *);
52 unsigned int id;
53 char *label;
54};
55
56
57struct samsung_usb2_phy_config {
58 const struct samsung_usb2_common_phy *phys;
59 int (*rate_to_clk)(unsigned long, u32 *);
60 unsigned int num_phys;
61 bool has_mode_switch;
62};
63
64extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
65extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
66extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
67#endif
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
new file mode 100644
index 000000000000..e6e6c4ba7145
--- /dev/null
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -0,0 +1,331 @@
1/*
2 * Allwinner sun4i USB phy driver
3 *
4 * Copyright (C) 2014 Hans de Goede <hdegoede@redhat.com>
5 *
6 * Based on code from
7 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
8 *
9 * Modelled after: Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver
10 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
11 * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 */
23
24#include <linux/clk.h>
25#include <linux/io.h>
26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/mutex.h>
29#include <linux/of.h>
30#include <linux/of_address.h>
31#include <linux/phy/phy.h>
32#include <linux/platform_device.h>
33#include <linux/regulator/consumer.h>
34#include <linux/reset.h>
35
36#define REG_ISCR 0x00
37#define REG_PHYCTL 0x04
38#define REG_PHYBIST 0x08
39#define REG_PHYTUNE 0x0c
40
41#define PHYCTL_DATA BIT(7)
42
43#define SUNXI_AHB_ICHR8_EN BIT(10)
44#define SUNXI_AHB_INCR4_BURST_EN BIT(9)
45#define SUNXI_AHB_INCRX_ALIGN_EN BIT(8)
46#define SUNXI_ULPI_BYPASS_EN BIT(0)
47
48/* Common Control Bits for Both PHYs */
49#define PHY_PLL_BW 0x03
50#define PHY_RES45_CAL_EN 0x0c
51
52/* Private Control Bits for Each PHY */
53#define PHY_TX_AMPLITUDE_TUNE 0x20
54#define PHY_TX_SLEWRATE_TUNE 0x22
55#define PHY_VBUSVALID_TH_SEL 0x25
56#define PHY_PULLUP_RES_SEL 0x27
57#define PHY_OTG_FUNC_EN 0x28
58#define PHY_VBUS_DET_EN 0x29
59#define PHY_DISCON_TH_SEL 0x2a
60
61#define MAX_PHYS 3
62
63struct sun4i_usb_phy_data {
64 struct clk *clk;
65 void __iomem *base;
66 struct mutex mutex;
67 int num_phys;
68 u32 disc_thresh;
69 struct sun4i_usb_phy {
70 struct phy *phy;
71 void __iomem *pmu;
72 struct regulator *vbus;
73 struct reset_control *reset;
74 int index;
75 } phys[MAX_PHYS];
76};
77
78#define to_sun4i_usb_phy_data(phy) \
79 container_of((phy), struct sun4i_usb_phy_data, phys[(phy)->index])
80
81static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
82 int len)
83{
84 struct sun4i_usb_phy_data *phy_data = to_sun4i_usb_phy_data(phy);
85 u32 temp, usbc_bit = BIT(phy->index * 2);
86 int i;
87
88 mutex_lock(&phy_data->mutex);
89
90 for (i = 0; i < len; i++) {
91 temp = readl(phy_data->base + REG_PHYCTL);
92
93 /* clear the address portion */
94 temp &= ~(0xff << 8);
95
96 /* set the address */
97 temp |= ((addr + i) << 8);
98 writel(temp, phy_data->base + REG_PHYCTL);
99
100 /* set the data bit and clear usbc bit*/
101 temp = readb(phy_data->base + REG_PHYCTL);
102 if (data & 0x1)
103 temp |= PHYCTL_DATA;
104 else
105 temp &= ~PHYCTL_DATA;
106 temp &= ~usbc_bit;
107 writeb(temp, phy_data->base + REG_PHYCTL);
108
109 /* pulse usbc_bit */
110 temp = readb(phy_data->base + REG_PHYCTL);
111 temp |= usbc_bit;
112 writeb(temp, phy_data->base + REG_PHYCTL);
113
114 temp = readb(phy_data->base + REG_PHYCTL);
115 temp &= ~usbc_bit;
116 writeb(temp, phy_data->base + REG_PHYCTL);
117
118 data >>= 1;
119 }
120 mutex_unlock(&phy_data->mutex);
121}
122
123static void sun4i_usb_phy_passby(struct sun4i_usb_phy *phy, int enable)
124{
125 u32 bits, reg_value;
126
127 if (!phy->pmu)
128 return;
129
130 bits = SUNXI_AHB_ICHR8_EN | SUNXI_AHB_INCR4_BURST_EN |
131 SUNXI_AHB_INCRX_ALIGN_EN | SUNXI_ULPI_BYPASS_EN;
132
133 reg_value = readl(phy->pmu);
134
135 if (enable)
136 reg_value |= bits;
137 else
138 reg_value &= ~bits;
139
140 writel(reg_value, phy->pmu);
141}
142
143static int sun4i_usb_phy_init(struct phy *_phy)
144{
145 struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
146 struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
147 int ret;
148
149 ret = clk_prepare_enable(data->clk);
150 if (ret)
151 return ret;
152
153 ret = reset_control_deassert(phy->reset);
154 if (ret) {
155 clk_disable_unprepare(data->clk);
156 return ret;
157 }
158
159 /* Adjust PHY's magnitude and rate */
160 sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, 0x14, 5);
161
162 /* Disconnect threshold adjustment */
163 sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL, data->disc_thresh, 2);
164
165 sun4i_usb_phy_passby(phy, 1);
166
167 return 0;
168}
169
170static int sun4i_usb_phy_exit(struct phy *_phy)
171{
172 struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
173 struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
174
175 sun4i_usb_phy_passby(phy, 0);
176 reset_control_assert(phy->reset);
177 clk_disable_unprepare(data->clk);
178
179 return 0;
180}
181
182static int sun4i_usb_phy_power_on(struct phy *_phy)
183{
184 struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
185 int ret = 0;
186
187 if (phy->vbus)
188 ret = regulator_enable(phy->vbus);
189
190 return ret;
191}
192
193static int sun4i_usb_phy_power_off(struct phy *_phy)
194{
195 struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
196
197 if (phy->vbus)
198 regulator_disable(phy->vbus);
199
200 return 0;
201}
202
203static struct phy_ops sun4i_usb_phy_ops = {
204 .init = sun4i_usb_phy_init,
205 .exit = sun4i_usb_phy_exit,
206 .power_on = sun4i_usb_phy_power_on,
207 .power_off = sun4i_usb_phy_power_off,
208 .owner = THIS_MODULE,
209};
210
211static struct phy *sun4i_usb_phy_xlate(struct device *dev,
212 struct of_phandle_args *args)
213{
214 struct sun4i_usb_phy_data *data = dev_get_drvdata(dev);
215
216 if (WARN_ON(args->args[0] == 0 || args->args[0] >= data->num_phys))
217 return ERR_PTR(-ENODEV);
218
219 return data->phys[args->args[0]].phy;
220}
221
222static int sun4i_usb_phy_probe(struct platform_device *pdev)
223{
224 struct sun4i_usb_phy_data *data;
225 struct device *dev = &pdev->dev;
226 struct device_node *np = dev->of_node;
227 void __iomem *pmu = NULL;
228 struct phy_provider *phy_provider;
229 struct reset_control *reset;
230 struct regulator *vbus;
231 struct resource *res;
232 struct phy *phy;
233 char name[16];
234 int i;
235
236 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
237 if (!data)
238 return -ENOMEM;
239
240 mutex_init(&data->mutex);
241
242 if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy"))
243 data->num_phys = 2;
244 else
245 data->num_phys = 3;
246
247 if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy"))
248 data->disc_thresh = 3;
249 else
250 data->disc_thresh = 2;
251
252 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl");
253 data->base = devm_ioremap_resource(dev, res);
254 if (IS_ERR(data->base))
255 return PTR_ERR(data->base);
256
257 data->clk = devm_clk_get(dev, "usb_phy");
258 if (IS_ERR(data->clk)) {
259 dev_err(dev, "could not get usb_phy clock\n");
260 return PTR_ERR(data->clk);
261 }
262
263 /* Skip 0, 0 is the phy for otg which is not yet supported. */
264 for (i = 1; i < data->num_phys; i++) {
265 snprintf(name, sizeof(name), "usb%d_vbus", i);
266 vbus = devm_regulator_get_optional(dev, name);
267 if (IS_ERR(vbus)) {
268 if (PTR_ERR(vbus) == -EPROBE_DEFER)
269 return -EPROBE_DEFER;
270 vbus = NULL;
271 }
272
273 snprintf(name, sizeof(name), "usb%d_reset", i);
274 reset = devm_reset_control_get(dev, name);
275 if (IS_ERR(reset)) {
276 dev_err(dev, "failed to get reset %s\n", name);
277 return PTR_ERR(reset);
278 }
279
280 if (i) { /* No pmu for usbc0 */
281 snprintf(name, sizeof(name), "pmu%d", i);
282 res = platform_get_resource_byname(pdev,
283 IORESOURCE_MEM, name);
284 pmu = devm_ioremap_resource(dev, res);
285 if (IS_ERR(pmu))
286 return PTR_ERR(pmu);
287 }
288
289 phy = devm_phy_create(dev, &sun4i_usb_phy_ops, NULL);
290 if (IS_ERR(phy)) {
291 dev_err(dev, "failed to create PHY %d\n", i);
292 return PTR_ERR(phy);
293 }
294
295 data->phys[i].phy = phy;
296 data->phys[i].pmu = pmu;
297 data->phys[i].vbus = vbus;
298 data->phys[i].reset = reset;
299 data->phys[i].index = i;
300 phy_set_drvdata(phy, &data->phys[i]);
301 }
302
303 dev_set_drvdata(dev, data);
304 phy_provider = devm_of_phy_provider_register(dev, sun4i_usb_phy_xlate);
305 if (IS_ERR(phy_provider))
306 return PTR_ERR(phy_provider);
307
308 return 0;
309}
310
311static const struct of_device_id sun4i_usb_phy_of_match[] = {
312 { .compatible = "allwinner,sun4i-a10-usb-phy" },
313 { .compatible = "allwinner,sun5i-a13-usb-phy" },
314 { .compatible = "allwinner,sun7i-a20-usb-phy" },
315 { },
316};
317MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);
318
319static struct platform_driver sun4i_usb_phy_driver = {
320 .probe = sun4i_usb_phy_probe,
321 .driver = {
322 .of_match_table = sun4i_usb_phy_of_match,
323 .name = "sun4i-usb-phy",
324 .owner = THIS_MODULE,
325 }
326};
327module_platform_driver(sun4i_usb_phy_driver);
328
329MODULE_DESCRIPTION("Allwinner sun4i USB phy driver");
330MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
331MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c
new file mode 100644
index 000000000000..591367654613
--- /dev/null
+++ b/drivers/phy/phy-ti-pipe3.c
@@ -0,0 +1,470 @@
1/*
2 * phy-ti-pipe3 - PIPE3 PHY driver.
3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * Author: Kishon Vijay Abraham I <kishon@ti.com>
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#include <linux/module.h>
20#include <linux/platform_device.h>
21#include <linux/slab.h>
22#include <linux/phy/phy.h>
23#include <linux/of.h>
24#include <linux/clk.h>
25#include <linux/err.h>
26#include <linux/io.h>
27#include <linux/pm_runtime.h>
28#include <linux/delay.h>
29#include <linux/phy/omap_control_phy.h>
30#include <linux/of_platform.h>
31
32#define PLL_STATUS 0x00000004
33#define PLL_GO 0x00000008
34#define PLL_CONFIGURATION1 0x0000000C
35#define PLL_CONFIGURATION2 0x00000010
36#define PLL_CONFIGURATION3 0x00000014
37#define PLL_CONFIGURATION4 0x00000020
38
39#define PLL_REGM_MASK 0x001FFE00
40#define PLL_REGM_SHIFT 0x9
41#define PLL_REGM_F_MASK 0x0003FFFF
42#define PLL_REGM_F_SHIFT 0x0
43#define PLL_REGN_MASK 0x000001FE
44#define PLL_REGN_SHIFT 0x1
45#define PLL_SELFREQDCO_MASK 0x0000000E
46#define PLL_SELFREQDCO_SHIFT 0x1
47#define PLL_SD_MASK 0x0003FC00
48#define PLL_SD_SHIFT 10
49#define SET_PLL_GO 0x1
50#define PLL_LDOPWDN BIT(15)
51#define PLL_TICOPWDN BIT(16)
52#define PLL_LOCK 0x2
53#define PLL_IDLE 0x1
54
55/*
56 * This is an Empirical value that works, need to confirm the actual
57 * value required for the PIPE3PHY_PLL_CONFIGURATION2.PLL_IDLE status
58 * to be correctly reflected in the PIPE3PHY_PLL_STATUS register.
59 */
60#define PLL_IDLE_TIME 100 /* in milliseconds */
61#define PLL_LOCK_TIME 100 /* in milliseconds */
62
63struct pipe3_dpll_params {
64 u16 m;
65 u8 n;
66 u8 freq:3;
67 u8 sd;
68 u32 mf;
69};
70
71struct pipe3_dpll_map {
72 unsigned long rate;
73 struct pipe3_dpll_params params;
74};
75
76struct ti_pipe3 {
77 void __iomem *pll_ctrl_base;
78 struct device *dev;
79 struct device *control_dev;
80 struct clk *wkupclk;
81 struct clk *sys_clk;
82 struct clk *refclk;
83 struct pipe3_dpll_map *dpll_map;
84};
85
86static struct pipe3_dpll_map dpll_map_usb[] = {
87 {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
88 {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
89 {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
90 {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */
91 {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */
92 {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
93 { }, /* Terminator */
94};
95
96static struct pipe3_dpll_map dpll_map_sata[] = {
97 {12000000, {1000, 7, 4, 6, 0} }, /* 12 MHz */
98 {16800000, {714, 7, 4, 6, 0} }, /* 16.8 MHz */
99 {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
100 {20000000, {600, 7, 4, 6, 0} }, /* 20 MHz */
101 {26000000, {461, 7, 4, 6, 0} }, /* 26 MHz */
102 {38400000, {312, 7, 4, 6, 0} }, /* 38.4 MHz */
103 { }, /* Terminator */
104};
105
106static inline u32 ti_pipe3_readl(void __iomem *addr, unsigned offset)
107{
108 return __raw_readl(addr + offset);
109}
110
111static inline void ti_pipe3_writel(void __iomem *addr, unsigned offset,
112 u32 data)
113{
114 __raw_writel(data, addr + offset);
115}
116
117static struct pipe3_dpll_params *ti_pipe3_get_dpll_params(struct ti_pipe3 *phy)
118{
119 unsigned long rate;
120 struct pipe3_dpll_map *dpll_map = phy->dpll_map;
121
122 rate = clk_get_rate(phy->sys_clk);
123
124 for (; dpll_map->rate; dpll_map++) {
125 if (rate == dpll_map->rate)
126 return &dpll_map->params;
127 }
128
129 dev_err(phy->dev, "No DPLL configuration for %lu Hz SYS CLK\n", rate);
130
131 return NULL;
132}
133
134static int ti_pipe3_power_off(struct phy *x)
135{
136 struct ti_pipe3 *phy = phy_get_drvdata(x);
137
138 omap_control_phy_power(phy->control_dev, 0);
139
140 return 0;
141}
142
143static int ti_pipe3_power_on(struct phy *x)
144{
145 struct ti_pipe3 *phy = phy_get_drvdata(x);
146
147 omap_control_phy_power(phy->control_dev, 1);
148
149 return 0;
150}
151
152static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy)
153{
154 u32 val;
155 unsigned long timeout;
156
157 timeout = jiffies + msecs_to_jiffies(PLL_LOCK_TIME);
158 do {
159 cpu_relax();
160 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
161 if (val & PLL_LOCK)
162 break;
163 } while (!time_after(jiffies, timeout));
164
165 if (!(val & PLL_LOCK)) {
166 dev_err(phy->dev, "DPLL failed to lock\n");
167 return -EBUSY;
168 }
169
170 return 0;
171}
172
173static int ti_pipe3_dpll_program(struct ti_pipe3 *phy)
174{
175 u32 val;
176 struct pipe3_dpll_params *dpll_params;
177
178 dpll_params = ti_pipe3_get_dpll_params(phy);
179 if (!dpll_params)
180 return -EINVAL;
181
182 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
183 val &= ~PLL_REGN_MASK;
184 val |= dpll_params->n << PLL_REGN_SHIFT;
185 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
186
187 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
188 val &= ~PLL_SELFREQDCO_MASK;
189 val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
190 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
191
192 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
193 val &= ~PLL_REGM_MASK;
194 val |= dpll_params->m << PLL_REGM_SHIFT;
195 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
196
197 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4);
198 val &= ~PLL_REGM_F_MASK;
199 val |= dpll_params->mf << PLL_REGM_F_SHIFT;
200 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val);
201
202 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3);
203 val &= ~PLL_SD_MASK;
204 val |= dpll_params->sd << PLL_SD_SHIFT;
205 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val);
206
207 ti_pipe3_writel(phy->pll_ctrl_base, PLL_GO, SET_PLL_GO);
208
209 return ti_pipe3_dpll_wait_lock(phy);
210}
211
212static int ti_pipe3_init(struct phy *x)
213{
214 struct ti_pipe3 *phy = phy_get_drvdata(x);
215 u32 val;
216 int ret = 0;
217
218 /* Bring it out of IDLE if it is IDLE */
219 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
220 if (val & PLL_IDLE) {
221 val &= ~PLL_IDLE;
222 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
223 ret = ti_pipe3_dpll_wait_lock(phy);
224 }
225
226 /* Program the DPLL only if not locked */
227 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
228 if (!(val & PLL_LOCK))
229 if (ti_pipe3_dpll_program(phy))
230 return -EINVAL;
231
232 return ret;
233}
234
235static int ti_pipe3_exit(struct phy *x)
236{
237 struct ti_pipe3 *phy = phy_get_drvdata(x);
238 u32 val;
239 unsigned long timeout;
240
241 /* SATA DPLL can't be powered down due to Errata i783 */
242 if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata"))
243 return 0;
244
245 /* Put DPLL in IDLE mode */
246 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
247 val |= PLL_IDLE;
248 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
249
250 /* wait for LDO and Oscillator to power down */
251 timeout = jiffies + msecs_to_jiffies(PLL_IDLE_TIME);
252 do {
253 cpu_relax();
254 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
255 if ((val & PLL_TICOPWDN) && (val & PLL_LDOPWDN))
256 break;
257 } while (!time_after(jiffies, timeout));
258
259 if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
260 dev_err(phy->dev, "Failed to power down: PLL_STATUS 0x%x\n",
261 val);
262 return -EBUSY;
263 }
264
265 return 0;
266}
267static struct phy_ops ops = {
268 .init = ti_pipe3_init,
269 .exit = ti_pipe3_exit,
270 .power_on = ti_pipe3_power_on,
271 .power_off = ti_pipe3_power_off,
272 .owner = THIS_MODULE,
273};
274
275#ifdef CONFIG_OF
276static const struct of_device_id ti_pipe3_id_table[];
277#endif
278
279static int ti_pipe3_probe(struct platform_device *pdev)
280{
281 struct ti_pipe3 *phy;
282 struct phy *generic_phy;
283 struct phy_provider *phy_provider;
284 struct resource *res;
285 struct device_node *node = pdev->dev.of_node;
286 struct device_node *control_node;
287 struct platform_device *control_pdev;
288 const struct of_device_id *match;
289
290 match = of_match_device(of_match_ptr(ti_pipe3_id_table), &pdev->dev);
291 if (!match)
292 return -EINVAL;
293
294 phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
295 if (!phy) {
296 dev_err(&pdev->dev, "unable to alloc mem for TI PIPE3 PHY\n");
297 return -ENOMEM;
298 }
299
300 phy->dpll_map = (struct pipe3_dpll_map *)match->data;
301 if (!phy->dpll_map) {
302 dev_err(&pdev->dev, "no DPLL data\n");
303 return -EINVAL;
304 }
305
306 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pll_ctrl");
307 phy->pll_ctrl_base = devm_ioremap_resource(&pdev->dev, res);
308 if (IS_ERR(phy->pll_ctrl_base))
309 return PTR_ERR(phy->pll_ctrl_base);
310
311 phy->dev = &pdev->dev;
312
313 if (!of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
314
315 phy->wkupclk = devm_clk_get(phy->dev, "wkupclk");
316 if (IS_ERR(phy->wkupclk)) {
317 dev_err(&pdev->dev, "unable to get wkupclk\n");
318 return PTR_ERR(phy->wkupclk);
319 }
320
321 phy->refclk = devm_clk_get(phy->dev, "refclk");
322 if (IS_ERR(phy->refclk)) {
323 dev_err(&pdev->dev, "unable to get refclk\n");
324 return PTR_ERR(phy->refclk);
325 }
326 } else {
327 phy->wkupclk = ERR_PTR(-ENODEV);
328 phy->refclk = ERR_PTR(-ENODEV);
329 }
330
331 phy->sys_clk = devm_clk_get(phy->dev, "sysclk");
332 if (IS_ERR(phy->sys_clk)) {
333 dev_err(&pdev->dev, "unable to get sysclk\n");
334 return -EINVAL;
335 }
336
337 control_node = of_parse_phandle(node, "ctrl-module", 0);
338 if (!control_node) {
339 dev_err(&pdev->dev, "Failed to get control device phandle\n");
340 return -EINVAL;
341 }
342
343 control_pdev = of_find_device_by_node(control_node);
344 if (!control_pdev) {
345 dev_err(&pdev->dev, "Failed to get control device\n");
346 return -EINVAL;
347 }
348
349 phy->control_dev = &control_pdev->dev;
350
351 omap_control_phy_power(phy->control_dev, 0);
352
353 platform_set_drvdata(pdev, phy);
354 pm_runtime_enable(phy->dev);
355
356 generic_phy = devm_phy_create(phy->dev, &ops, NULL);
357 if (IS_ERR(generic_phy))
358 return PTR_ERR(generic_phy);
359
360 phy_set_drvdata(generic_phy, phy);
361 phy_provider = devm_of_phy_provider_register(phy->dev,
362 of_phy_simple_xlate);
363 if (IS_ERR(phy_provider))
364 return PTR_ERR(phy_provider);
365
366 pm_runtime_get(&pdev->dev);
367
368 return 0;
369}
370
371static int ti_pipe3_remove(struct platform_device *pdev)
372{
373 if (!pm_runtime_suspended(&pdev->dev))
374 pm_runtime_put(&pdev->dev);
375 pm_runtime_disable(&pdev->dev);
376
377 return 0;
378}
379
380#ifdef CONFIG_PM_RUNTIME
381
382static int ti_pipe3_runtime_suspend(struct device *dev)
383{
384 struct ti_pipe3 *phy = dev_get_drvdata(dev);
385
386 if (!IS_ERR(phy->wkupclk))
387 clk_disable_unprepare(phy->wkupclk);
388 if (!IS_ERR(phy->refclk))
389 clk_disable_unprepare(phy->refclk);
390
391 return 0;
392}
393
394static int ti_pipe3_runtime_resume(struct device *dev)
395{
396 u32 ret = 0;
397 struct ti_pipe3 *phy = dev_get_drvdata(dev);
398
399 if (!IS_ERR(phy->refclk)) {
400 ret = clk_prepare_enable(phy->refclk);
401 if (ret) {
402 dev_err(phy->dev, "Failed to enable refclk %d\n", ret);
403 goto err1;
404 }
405 }
406
407 if (!IS_ERR(phy->wkupclk)) {
408 ret = clk_prepare_enable(phy->wkupclk);
409 if (ret) {
410 dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
411 goto err2;
412 }
413 }
414
415 return 0;
416
417err2:
418 if (!IS_ERR(phy->refclk))
419 clk_disable_unprepare(phy->refclk);
420
421err1:
422 return ret;
423}
424
425static const struct dev_pm_ops ti_pipe3_pm_ops = {
426 SET_RUNTIME_PM_OPS(ti_pipe3_runtime_suspend,
427 ti_pipe3_runtime_resume, NULL)
428};
429
430#define DEV_PM_OPS (&ti_pipe3_pm_ops)
431#else
432#define DEV_PM_OPS NULL
433#endif
434
435#ifdef CONFIG_OF
436static const struct of_device_id ti_pipe3_id_table[] = {
437 {
438 .compatible = "ti,phy-usb3",
439 .data = dpll_map_usb,
440 },
441 {
442 .compatible = "ti,omap-usb3",
443 .data = dpll_map_usb,
444 },
445 {
446 .compatible = "ti,phy-pipe3-sata",
447 .data = dpll_map_sata,
448 },
449 {}
450};
451MODULE_DEVICE_TABLE(of, ti_pipe3_id_table);
452#endif
453
454static struct platform_driver ti_pipe3_driver = {
455 .probe = ti_pipe3_probe,
456 .remove = ti_pipe3_remove,
457 .driver = {
458 .name = "ti-pipe3",
459 .owner = THIS_MODULE,
460 .pm = DEV_PM_OPS,
461 .of_match_table = of_match_ptr(ti_pipe3_id_table),
462 },
463};
464
465module_platform_driver(ti_pipe3_driver);
466
467MODULE_ALIAS("platform: ti_pipe3");
468MODULE_AUTHOR("Texas Instruments Inc.");
469MODULE_DESCRIPTION("TI PIPE3 phy driver");
470MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index c3ace1db8136..2e0e9b3774c8 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -338,7 +338,7 @@ static void twl4030_usb_set_mode(struct twl4030_usb *twl, int mode)
338 dev_err(twl->dev, "unsupported T2 transceiver mode %d\n", 338 dev_err(twl->dev, "unsupported T2 transceiver mode %d\n",
339 mode); 339 mode);
340 break; 340 break;
341 }; 341 }
342} 342}
343 343
344static void twl4030_i2c_access(struct twl4030_usb *twl, int on) 344static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
@@ -661,7 +661,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
661 struct phy_provider *phy_provider; 661 struct phy_provider *phy_provider;
662 struct phy_init_data *init_data = NULL; 662 struct phy_init_data *init_data = NULL;
663 663
664 twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL); 664 twl = devm_kzalloc(&pdev->dev, sizeof(*twl), GFP_KERNEL);
665 if (!twl) 665 if (!twl)
666 return -ENOMEM; 666 return -ENOMEM;
667 667
@@ -676,7 +676,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
676 return -EINVAL; 676 return -EINVAL;
677 } 677 }
678 678
679 otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL); 679 otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
680 if (!otg) 680 if (!otg)
681 return -ENOMEM; 681 return -ENOMEM;
682 682
diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c
new file mode 100644
index 000000000000..4aa1ccd1511f
--- /dev/null
+++ b/drivers/phy/phy-xgene.c
@@ -0,0 +1,1750 @@
1/*
2 * AppliedMicro X-Gene Multi-purpose PHY driver
3 *
4 * Copyright (c) 2014, Applied Micro Circuits Corporation
5 * Author: Loc Ho <lho@apm.com>
6 * Tuan Phan <tphan@apm.com>
7 * Suman Tripathi <stripathi@apm.com>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 *
22 * The APM X-Gene PHY consists of two PLL clock macro's (CMU) and lanes.
23 * The first PLL clock macro is used for internal reference clock. The second
24 * PLL clock macro is used to generate the clock for the PHY. This driver
25 * configures the first PLL CMU, the second PLL CMU, and programs the PHY to
26 * operate according to the mode of operation. The first PLL CMU is only
27 * required if internal clock is enabled.
28 *
29 * Logical Layer Out Of HW module units:
30 *
31 * -----------------
32 * | Internal | |------|
33 * | Ref PLL CMU |----| | ------------- ---------
34 * ------------ ---- | MUX |-----|PHY PLL CMU|----| Serdes|
35 * | | | | ---------
36 * External Clock ------| | -------------
37 * |------|
38 *
39 * The Ref PLL CMU CSR (Configuration System Registers) is accessed
40 * indirectly from the SDS offset at 0x2000. It is only required for
41 * internal reference clock.
42 * The PHY PLL CMU CSR is accessed indirectly from the SDS offset at 0x0000.
43 * The Serdes CSR is accessed indirectly from the SDS offset at 0x0400.
44 *
45 * The Ref PLL CMU can be located within the same PHY IP or outside the PHY IP
46 * due to shared Ref PLL CMU. For PHY with Ref PLL CMU shared with another IP,
47 * it is located outside the PHY IP. This is the case for the PHY located
48 * at 0x1f23a000 (SATA Port 4/5). For such PHY, another resource is required
49 * to located the SDS/Ref PLL CMU module and its clock for that IP enabled.
50 *
51 * Currently, this driver only supports Gen3 SATA mode with external clock.
52 */
53#include <linux/module.h>
54#include <linux/platform_device.h>
55#include <linux/io.h>
56#include <linux/delay.h>
57#include <linux/phy/phy.h>
58#include <linux/clk.h>
59
60/* Max 2 lanes per a PHY unit */
61#define MAX_LANE 2
62
63/* Register offset inside the PHY */
64#define SERDES_PLL_INDIRECT_OFFSET 0x0000
65#define SERDES_PLL_REF_INDIRECT_OFFSET 0x2000
66#define SERDES_INDIRECT_OFFSET 0x0400
67#define SERDES_LANE_STRIDE 0x0200
68
69/* Some default Serdes parameters */
70#define DEFAULT_SATA_TXBOOST_GAIN { 0x1e, 0x1e, 0x1e }
71#define DEFAULT_SATA_TXEYEDIRECTION { 0x0, 0x0, 0x0 }
72#define DEFAULT_SATA_TXEYETUNING { 0xa, 0xa, 0xa }
73#define DEFAULT_SATA_SPD_SEL { 0x1, 0x3, 0x7 }
74#define DEFAULT_SATA_TXAMP { 0x8, 0x8, 0x8 }
75#define DEFAULT_SATA_TXCN1 { 0x2, 0x2, 0x2 }
76#define DEFAULT_SATA_TXCN2 { 0x0, 0x0, 0x0 }
77#define DEFAULT_SATA_TXCP1 { 0xa, 0xa, 0xa }
78
79#define SATA_SPD_SEL_GEN3 0x7
80#define SATA_SPD_SEL_GEN2 0x3
81#define SATA_SPD_SEL_GEN1 0x1
82
83#define SSC_DISABLE 0
84#define SSC_ENABLE 1
85
86#define FBDIV_VAL_50M 0x77
87#define REFDIV_VAL_50M 0x1
88#define FBDIV_VAL_100M 0x3B
89#define REFDIV_VAL_100M 0x0
90
91/* SATA Clock/Reset CSR */
92#define SATACLKENREG 0x00000000
93#define SATA0_CORE_CLKEN 0x00000002
94#define SATA1_CORE_CLKEN 0x00000004
95#define SATASRESETREG 0x00000004
96#define SATA_MEM_RESET_MASK 0x00000020
97#define SATA_MEM_RESET_RD(src) (((src) & 0x00000020) >> 5)
98#define SATA_SDS_RESET_MASK 0x00000004
99#define SATA_CSR_RESET_MASK 0x00000001
100#define SATA_CORE_RESET_MASK 0x00000002
101#define SATA_PMCLK_RESET_MASK 0x00000010
102#define SATA_PCLK_RESET_MASK 0x00000008
103
104/* SDS CSR used for PHY Indirect access */
105#define SATA_ENET_SDS_PCS_CTL0 0x00000000
106#define REGSPEC_CFG_I_TX_WORDMODE0_SET(dst, src) \
107 (((dst) & ~0x00070000) | (((u32) (src) << 16) & 0x00070000))
108#define REGSPEC_CFG_I_RX_WORDMODE0_SET(dst, src) \
109 (((dst) & ~0x00e00000) | (((u32) (src) << 21) & 0x00e00000))
110#define SATA_ENET_SDS_CTL0 0x0000000c
111#define REGSPEC_CFG_I_CUSTOMER_PIN_MODE0_SET(dst, src) \
112 (((dst) & ~0x00007fff) | (((u32) (src)) & 0x00007fff))
113#define SATA_ENET_SDS_CTL1 0x00000010
114#define CFG_I_SPD_SEL_CDR_OVR1_SET(dst, src) \
115 (((dst) & ~0x0000000f) | (((u32) (src)) & 0x0000000f))
116#define SATA_ENET_SDS_RST_CTL 0x00000024
117#define SATA_ENET_SDS_IND_CMD_REG 0x0000003c
118#define CFG_IND_WR_CMD_MASK 0x00000001
119#define CFG_IND_RD_CMD_MASK 0x00000002
120#define CFG_IND_CMD_DONE_MASK 0x00000004
121#define CFG_IND_ADDR_SET(dst, src) \
122 (((dst) & ~0x003ffff0) | (((u32) (src) << 4) & 0x003ffff0))
123#define SATA_ENET_SDS_IND_RDATA_REG 0x00000040
124#define SATA_ENET_SDS_IND_WDATA_REG 0x00000044
125#define SATA_ENET_CLK_MACRO_REG 0x0000004c
126#define I_RESET_B_SET(dst, src) \
127 (((dst) & ~0x00000001) | (((u32) (src)) & 0x00000001))
128#define I_PLL_FBDIV_SET(dst, src) \
129 (((dst) & ~0x001ff000) | (((u32) (src) << 12) & 0x001ff000))
130#define I_CUSTOMEROV_SET(dst, src) \
131 (((dst) & ~0x00000f80) | (((u32) (src) << 7) & 0x00000f80))
132#define O_PLL_LOCK_RD(src) (((src) & 0x40000000) >> 30)
133#define O_PLL_READY_RD(src) (((src) & 0x80000000) >> 31)
134
135/* PLL Clock Macro Unit (CMU) CSR accessing from SDS indirectly */
136#define CMU_REG0 0x00000
137#define CMU_REG0_PLL_REF_SEL_MASK 0x00002000
138#define CMU_REG0_PLL_REF_SEL_SET(dst, src) \
139 (((dst) & ~0x00002000) | (((u32) (src) << 13) & 0x00002000))
140#define CMU_REG0_PDOWN_MASK 0x00004000
141#define CMU_REG0_CAL_COUNT_RESOL_SET(dst, src) \
142 (((dst) & ~0x000000e0) | (((u32) (src) << 5) & 0x000000e0))
143#define CMU_REG1 0x00002
144#define CMU_REG1_PLL_CP_SET(dst, src) \
145 (((dst) & ~0x00003c00) | (((u32) (src) << 10) & 0x00003c00))
146#define CMU_REG1_PLL_MANUALCAL_SET(dst, src) \
147 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
148#define CMU_REG1_PLL_CP_SEL_SET(dst, src) \
149 (((dst) & ~0x000003e0) | (((u32) (src) << 5) & 0x000003e0))
150#define CMU_REG1_REFCLK_CMOS_SEL_MASK 0x00000001
151#define CMU_REG1_REFCLK_CMOS_SEL_SET(dst, src) \
152 (((dst) & ~0x00000001) | (((u32) (src) << 0) & 0x00000001))
153#define CMU_REG2 0x00004
154#define CMU_REG2_PLL_REFDIV_SET(dst, src) \
155 (((dst) & ~0x0000c000) | (((u32) (src) << 14) & 0x0000c000))
156#define CMU_REG2_PLL_LFRES_SET(dst, src) \
157 (((dst) & ~0x0000001e) | (((u32) (src) << 1) & 0x0000001e))
158#define CMU_REG2_PLL_FBDIV_SET(dst, src) \
159 (((dst) & ~0x00003fe0) | (((u32) (src) << 5) & 0x00003fe0))
160#define CMU_REG3 0x00006
161#define CMU_REG3_VCOVARSEL_SET(dst, src) \
162 (((dst) & ~0x0000000f) | (((u32) (src) << 0) & 0x0000000f))
163#define CMU_REG3_VCO_MOMSEL_INIT_SET(dst, src) \
164 (((dst) & ~0x000003f0) | (((u32) (src) << 4) & 0x000003f0))
165#define CMU_REG3_VCO_MANMOMSEL_SET(dst, src) \
166 (((dst) & ~0x0000fc00) | (((u32) (src) << 10) & 0x0000fc00))
167#define CMU_REG4 0x00008
168#define CMU_REG5 0x0000a
169#define CMU_REG5_PLL_LFSMCAP_SET(dst, src) \
170 (((dst) & ~0x0000c000) | (((u32) (src) << 14) & 0x0000c000))
171#define CMU_REG5_PLL_LOCK_RESOLUTION_SET(dst, src) \
172 (((dst) & ~0x0000000e) | (((u32) (src) << 1) & 0x0000000e))
173#define CMU_REG5_PLL_LFCAP_SET(dst, src) \
174 (((dst) & ~0x00003000) | (((u32) (src) << 12) & 0x00003000))
175#define CMU_REG5_PLL_RESETB_MASK 0x00000001
176#define CMU_REG6 0x0000c
177#define CMU_REG6_PLL_VREGTRIM_SET(dst, src) \
178 (((dst) & ~0x00000600) | (((u32) (src) << 9) & 0x00000600))
179#define CMU_REG6_MAN_PVT_CAL_SET(dst, src) \
180 (((dst) & ~0x00000004) | (((u32) (src) << 2) & 0x00000004))
181#define CMU_REG7 0x0000e
182#define CMU_REG7_PLL_CALIB_DONE_RD(src) ((0x00004000 & (u32) (src)) >> 14)
183#define CMU_REG7_VCO_CAL_FAIL_RD(src) ((0x00000c00 & (u32) (src)) >> 10)
184#define CMU_REG8 0x00010
185#define CMU_REG9 0x00012
186#define CMU_REG9_WORD_LEN_8BIT 0x000
187#define CMU_REG9_WORD_LEN_10BIT 0x001
188#define CMU_REG9_WORD_LEN_16BIT 0x002
189#define CMU_REG9_WORD_LEN_20BIT 0x003
190#define CMU_REG9_WORD_LEN_32BIT 0x004
191#define CMU_REG9_WORD_LEN_40BIT 0x005
192#define CMU_REG9_WORD_LEN_64BIT 0x006
193#define CMU_REG9_WORD_LEN_66BIT 0x007
194#define CMU_REG9_TX_WORD_MODE_CH1_SET(dst, src) \
195 (((dst) & ~0x00000380) | (((u32) (src) << 7) & 0x00000380))
196#define CMU_REG9_TX_WORD_MODE_CH0_SET(dst, src) \
197 (((dst) & ~0x00000070) | (((u32) (src) << 4) & 0x00000070))
198#define CMU_REG9_PLL_POST_DIVBY2_SET(dst, src) \
199 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
200#define CMU_REG9_VBG_BYPASSB_SET(dst, src) \
201 (((dst) & ~0x00000004) | (((u32) (src) << 2) & 0x00000004))
202#define CMU_REG9_IGEN_BYPASS_SET(dst, src) \
203 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
204#define CMU_REG10 0x00014
205#define CMU_REG10_VREG_REFSEL_SET(dst, src) \
206 (((dst) & ~0x00000001) | (((u32) (src) << 0) & 0x00000001))
207#define CMU_REG11 0x00016
208#define CMU_REG12 0x00018
209#define CMU_REG12_STATE_DELAY9_SET(dst, src) \
210 (((dst) & ~0x000000f0) | (((u32) (src) << 4) & 0x000000f0))
211#define CMU_REG13 0x0001a
212#define CMU_REG14 0x0001c
213#define CMU_REG15 0x0001e
214#define CMU_REG16 0x00020
215#define CMU_REG16_PVT_DN_MAN_ENA_MASK 0x00000001
216#define CMU_REG16_PVT_UP_MAN_ENA_MASK 0x00000002
217#define CMU_REG16_VCOCAL_WAIT_BTW_CODE_SET(dst, src) \
218 (((dst) & ~0x0000001c) | (((u32) (src) << 2) & 0x0000001c))
219#define CMU_REG16_CALIBRATION_DONE_OVERRIDE_SET(dst, src) \
220 (((dst) & ~0x00000040) | (((u32) (src) << 6) & 0x00000040))
221#define CMU_REG16_BYPASS_PLL_LOCK_SET(dst, src) \
222 (((dst) & ~0x00000020) | (((u32) (src) << 5) & 0x00000020))
223#define CMU_REG17 0x00022
224#define CMU_REG17_PVT_CODE_R2A_SET(dst, src) \
225 (((dst) & ~0x00007f00) | (((u32) (src) << 8) & 0x00007f00))
226#define CMU_REG17_RESERVED_7_SET(dst, src) \
227 (((dst) & ~0x000000e0) | (((u32) (src) << 5) & 0x000000e0))
228#define CMU_REG17_PVT_TERM_MAN_ENA_MASK 0x00008000
229#define CMU_REG18 0x00024
230#define CMU_REG19 0x00026
231#define CMU_REG20 0x00028
232#define CMU_REG21 0x0002a
233#define CMU_REG22 0x0002c
234#define CMU_REG23 0x0002e
235#define CMU_REG24 0x00030
236#define CMU_REG25 0x00032
237#define CMU_REG26 0x00034
238#define CMU_REG26_FORCE_PLL_LOCK_SET(dst, src) \
239 (((dst) & ~0x00000001) | (((u32) (src) << 0) & 0x00000001))
240#define CMU_REG27 0x00036
241#define CMU_REG28 0x00038
242#define CMU_REG29 0x0003a
243#define CMU_REG30 0x0003c
244#define CMU_REG30_LOCK_COUNT_SET(dst, src) \
245 (((dst) & ~0x00000006) | (((u32) (src) << 1) & 0x00000006))
246#define CMU_REG30_PCIE_MODE_SET(dst, src) \
247 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
248#define CMU_REG31 0x0003e
249#define CMU_REG32 0x00040
250#define CMU_REG32_FORCE_VCOCAL_START_MASK 0x00004000
251#define CMU_REG32_PVT_CAL_WAIT_SEL_SET(dst, src) \
252 (((dst) & ~0x00000006) | (((u32) (src) << 1) & 0x00000006))
253#define CMU_REG32_IREF_ADJ_SET(dst, src) \
254 (((dst) & ~0x00000180) | (((u32) (src) << 7) & 0x00000180))
255#define CMU_REG33 0x00042
256#define CMU_REG34 0x00044
257#define CMU_REG34_VCO_CAL_VTH_LO_MAX_SET(dst, src) \
258 (((dst) & ~0x0000000f) | (((u32) (src) << 0) & 0x0000000f))
259#define CMU_REG34_VCO_CAL_VTH_HI_MAX_SET(dst, src) \
260 (((dst) & ~0x00000f00) | (((u32) (src) << 8) & 0x00000f00))
261#define CMU_REG34_VCO_CAL_VTH_LO_MIN_SET(dst, src) \
262 (((dst) & ~0x000000f0) | (((u32) (src) << 4) & 0x000000f0))
263#define CMU_REG34_VCO_CAL_VTH_HI_MIN_SET(dst, src) \
264 (((dst) & ~0x0000f000) | (((u32) (src) << 12) & 0x0000f000))
265#define CMU_REG35 0x00046
266#define CMU_REG35_PLL_SSC_MOD_SET(dst, src) \
267 (((dst) & ~0x0000fe00) | (((u32) (src) << 9) & 0x0000fe00))
268#define CMU_REG36 0x00048
269#define CMU_REG36_PLL_SSC_EN_SET(dst, src) \
270 (((dst) & ~0x00000010) | (((u32) (src) << 4) & 0x00000010))
271#define CMU_REG36_PLL_SSC_VSTEP_SET(dst, src) \
272 (((dst) & ~0x0000ffc0) | (((u32) (src) << 6) & 0x0000ffc0))
273#define CMU_REG36_PLL_SSC_DSMSEL_SET(dst, src) \
274 (((dst) & ~0x00000020) | (((u32) (src) << 5) & 0x00000020))
275#define CMU_REG37 0x0004a
276#define CMU_REG38 0x0004c
277#define CMU_REG39 0x0004e
278
279/* PHY lane CSR accessing from SDS indirectly */
280#define RXTX_REG0 0x000
281#define RXTX_REG0_CTLE_EQ_HR_SET(dst, src) \
282 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
283#define RXTX_REG0_CTLE_EQ_QR_SET(dst, src) \
284 (((dst) & ~0x000007c0) | (((u32) (src) << 6) & 0x000007c0))
285#define RXTX_REG0_CTLE_EQ_FR_SET(dst, src) \
286 (((dst) & ~0x0000003e) | (((u32) (src) << 1) & 0x0000003e))
287#define RXTX_REG1 0x002
288#define RXTX_REG1_RXACVCM_SET(dst, src) \
289 (((dst) & ~0x0000f000) | (((u32) (src) << 12) & 0x0000f000))
290#define RXTX_REG1_CTLE_EQ_SET(dst, src) \
291 (((dst) & ~0x00000f80) | (((u32) (src) << 7) & 0x00000f80))
292#define RXTX_REG1_RXVREG1_SET(dst, src) \
293 (((dst) & ~0x00000060) | (((u32) (src) << 5) & 0x00000060))
294#define RXTX_REG1_RXIREF_ADJ_SET(dst, src) \
295 (((dst) & ~0x00000006) | (((u32) (src) << 1) & 0x00000006))
296#define RXTX_REG2 0x004
297#define RXTX_REG2_VTT_ENA_SET(dst, src) \
298 (((dst) & ~0x00000100) | (((u32) (src) << 8) & 0x00000100))
299#define RXTX_REG2_TX_FIFO_ENA_SET(dst, src) \
300 (((dst) & ~0x00000020) | (((u32) (src) << 5) & 0x00000020))
301#define RXTX_REG2_VTT_SEL_SET(dst, src) \
302 (((dst) & ~0x000000c0) | (((u32) (src) << 6) & 0x000000c0))
303#define RXTX_REG4 0x008
304#define RXTX_REG4_TX_LOOPBACK_BUF_EN_MASK 0x00000040
305#define RXTX_REG4_TX_DATA_RATE_SET(dst, src) \
306 (((dst) & ~0x0000c000) | (((u32) (src) << 14) & 0x0000c000))
307#define RXTX_REG4_TX_WORD_MODE_SET(dst, src) \
308 (((dst) & ~0x00003800) | (((u32) (src) << 11) & 0x00003800))
309#define RXTX_REG5 0x00a
310#define RXTX_REG5_TX_CN1_SET(dst, src) \
311 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
312#define RXTX_REG5_TX_CP1_SET(dst, src) \
313 (((dst) & ~0x000007e0) | (((u32) (src) << 5) & 0x000007e0))
314#define RXTX_REG5_TX_CN2_SET(dst, src) \
315 (((dst) & ~0x0000001f) | (((u32) (src) << 0) & 0x0000001f))
316#define RXTX_REG6 0x00c
317#define RXTX_REG6_TXAMP_CNTL_SET(dst, src) \
318 (((dst) & ~0x00000780) | (((u32) (src) << 7) & 0x00000780))
319#define RXTX_REG6_TXAMP_ENA_SET(dst, src) \
320 (((dst) & ~0x00000040) | (((u32) (src) << 6) & 0x00000040))
321#define RXTX_REG6_RX_BIST_ERRCNT_RD_SET(dst, src) \
322 (((dst) & ~0x00000001) | (((u32) (src) << 0) & 0x00000001))
323#define RXTX_REG6_TX_IDLE_SET(dst, src) \
324 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
325#define RXTX_REG6_RX_BIST_RESYNC_SET(dst, src) \
326 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
327#define RXTX_REG7 0x00e
328#define RXTX_REG7_RESETB_RXD_MASK 0x00000100
329#define RXTX_REG7_RESETB_RXA_MASK 0x00000080
330#define RXTX_REG7_BIST_ENA_RX_SET(dst, src) \
331 (((dst) & ~0x00000040) | (((u32) (src) << 6) & 0x00000040))
332#define RXTX_REG7_RX_WORD_MODE_SET(dst, src) \
333 (((dst) & ~0x00003800) | (((u32) (src) << 11) & 0x00003800))
334#define RXTX_REG8 0x010
335#define RXTX_REG8_CDR_LOOP_ENA_SET(dst, src) \
336 (((dst) & ~0x00004000) | (((u32) (src) << 14) & 0x00004000))
337#define RXTX_REG8_CDR_BYPASS_RXLOS_SET(dst, src) \
338 (((dst) & ~0x00000800) | (((u32) (src) << 11) & 0x00000800))
339#define RXTX_REG8_SSC_ENABLE_SET(dst, src) \
340 (((dst) & ~0x00000200) | (((u32) (src) << 9) & 0x00000200))
341#define RXTX_REG8_SD_VREF_SET(dst, src) \
342 (((dst) & ~0x000000f0) | (((u32) (src) << 4) & 0x000000f0))
343#define RXTX_REG8_SD_DISABLE_SET(dst, src) \
344 (((dst) & ~0x00000100) | (((u32) (src) << 8) & 0x00000100))
345#define RXTX_REG7 0x00e
346#define RXTX_REG7_RESETB_RXD_SET(dst, src) \
347 (((dst) & ~0x00000100) | (((u32) (src) << 8) & 0x00000100))
348#define RXTX_REG7_RESETB_RXA_SET(dst, src) \
349 (((dst) & ~0x00000080) | (((u32) (src) << 7) & 0x00000080))
350#define RXTX_REG7_LOOP_BACK_ENA_CTLE_MASK 0x00004000
351#define RXTX_REG7_LOOP_BACK_ENA_CTLE_SET(dst, src) \
352 (((dst) & ~0x00004000) | (((u32) (src) << 14) & 0x00004000))
353#define RXTX_REG11 0x016
354#define RXTX_REG11_PHASE_ADJUST_LIMIT_SET(dst, src) \
355 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
356#define RXTX_REG12 0x018
357#define RXTX_REG12_LATCH_OFF_ENA_SET(dst, src) \
358 (((dst) & ~0x00002000) | (((u32) (src) << 13) & 0x00002000))
359#define RXTX_REG12_SUMOS_ENABLE_SET(dst, src) \
360 (((dst) & ~0x00000004) | (((u32) (src) << 2) & 0x00000004))
361#define RXTX_REG12_RX_DET_TERM_ENABLE_MASK 0x00000002
362#define RXTX_REG12_RX_DET_TERM_ENABLE_SET(dst, src) \
363 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
364#define RXTX_REG13 0x01a
365#define RXTX_REG14 0x01c
366#define RXTX_REG14_CLTE_LATCAL_MAN_PROG_SET(dst, src) \
367 (((dst) & ~0x0000003f) | (((u32) (src) << 0) & 0x0000003f))
368#define RXTX_REG14_CTLE_LATCAL_MAN_ENA_SET(dst, src) \
369 (((dst) & ~0x00000040) | (((u32) (src) << 6) & 0x00000040))
370#define RXTX_REG26 0x034
371#define RXTX_REG26_PERIOD_ERROR_LATCH_SET(dst, src) \
372 (((dst) & ~0x00003800) | (((u32) (src) << 11) & 0x00003800))
373#define RXTX_REG26_BLWC_ENA_SET(dst, src) \
374 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
375#define RXTX_REG21 0x02a
376#define RXTX_REG21_DO_LATCH_CALOUT_RD(src) ((0x0000fc00 & (u32) (src)) >> 10)
377#define RXTX_REG21_XO_LATCH_CALOUT_RD(src) ((0x000003f0 & (u32) (src)) >> 4)
378#define RXTX_REG21_LATCH_CAL_FAIL_ODD_RD(src) ((0x0000000f & (u32)(src)))
379#define RXTX_REG22 0x02c
380#define RXTX_REG22_SO_LATCH_CALOUT_RD(src) ((0x000003f0 & (u32) (src)) >> 4)
381#define RXTX_REG22_EO_LATCH_CALOUT_RD(src) ((0x0000fc00 & (u32) (src)) >> 10)
382#define RXTX_REG22_LATCH_CAL_FAIL_EVEN_RD(src) ((0x0000000f & (u32)(src)))
383#define RXTX_REG23 0x02e
384#define RXTX_REG23_DE_LATCH_CALOUT_RD(src) ((0x0000fc00 & (u32) (src)) >> 10)
385#define RXTX_REG23_XE_LATCH_CALOUT_RD(src) ((0x000003f0 & (u32) (src)) >> 4)
386#define RXTX_REG24 0x030
387#define RXTX_REG24_EE_LATCH_CALOUT_RD(src) ((0x0000fc00 & (u32) (src)) >> 10)
388#define RXTX_REG24_SE_LATCH_CALOUT_RD(src) ((0x000003f0 & (u32) (src)) >> 4)
389#define RXTX_REG27 0x036
390#define RXTX_REG28 0x038
391#define RXTX_REG31 0x03e
392#define RXTX_REG38 0x04c
393#define RXTX_REG38_CUSTOMER_PINMODE_INV_SET(dst, src) \
394 (((dst) & 0x0000fffe) | (((u32) (src) << 1) & 0x0000fffe))
395#define RXTX_REG39 0x04e
396#define RXTX_REG40 0x050
397#define RXTX_REG41 0x052
398#define RXTX_REG42 0x054
399#define RXTX_REG43 0x056
400#define RXTX_REG44 0x058
401#define RXTX_REG45 0x05a
402#define RXTX_REG46 0x05c
403#define RXTX_REG47 0x05e
404#define RXTX_REG48 0x060
405#define RXTX_REG49 0x062
406#define RXTX_REG50 0x064
407#define RXTX_REG51 0x066
408#define RXTX_REG52 0x068
409#define RXTX_REG53 0x06a
410#define RXTX_REG54 0x06c
411#define RXTX_REG55 0x06e
412#define RXTX_REG61 0x07a
413#define RXTX_REG61_ISCAN_INBERT_SET(dst, src) \
414 (((dst) & ~0x00000010) | (((u32) (src) << 4) & 0x00000010))
415#define RXTX_REG61_LOADFREQ_SHIFT_SET(dst, src) \
416 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
417#define RXTX_REG61_EYE_COUNT_WIDTH_SEL_SET(dst, src) \
418 (((dst) & ~0x000000c0) | (((u32) (src) << 6) & 0x000000c0))
419#define RXTX_REG61_SPD_SEL_CDR_SET(dst, src) \
420 (((dst) & ~0x00003c00) | (((u32) (src) << 10) & 0x00003c00))
421#define RXTX_REG62 0x07c
422#define RXTX_REG62_PERIOD_H1_QLATCH_SET(dst, src) \
423 (((dst) & ~0x00003800) | (((u32) (src) << 11) & 0x00003800))
424#define RXTX_REG81 0x0a2
425#define RXTX_REG89_MU_TH7_SET(dst, src) \
426 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
427#define RXTX_REG89_MU_TH8_SET(dst, src) \
428 (((dst) & ~0x000007c0) | (((u32) (src) << 6) & 0x000007c0))
429#define RXTX_REG89_MU_TH9_SET(dst, src) \
430 (((dst) & ~0x0000003e) | (((u32) (src) << 1) & 0x0000003e))
431#define RXTX_REG96 0x0c0
432#define RXTX_REG96_MU_FREQ1_SET(dst, src) \
433 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
434#define RXTX_REG96_MU_FREQ2_SET(dst, src) \
435 (((dst) & ~0x000007c0) | (((u32) (src) << 6) & 0x000007c0))
436#define RXTX_REG96_MU_FREQ3_SET(dst, src) \
437 (((dst) & ~0x0000003e) | (((u32) (src) << 1) & 0x0000003e))
438#define RXTX_REG99 0x0c6
439#define RXTX_REG99_MU_PHASE1_SET(dst, src) \
440 (((dst) & ~0x0000f800) | (((u32) (src) << 11) & 0x0000f800))
441#define RXTX_REG99_MU_PHASE2_SET(dst, src) \
442 (((dst) & ~0x000007c0) | (((u32) (src) << 6) & 0x000007c0))
443#define RXTX_REG99_MU_PHASE3_SET(dst, src) \
444 (((dst) & ~0x0000003e) | (((u32) (src) << 1) & 0x0000003e))
445#define RXTX_REG102 0x0cc
446#define RXTX_REG102_FREQLOOP_LIMIT_SET(dst, src) \
447 (((dst) & ~0x00000060) | (((u32) (src) << 5) & 0x00000060))
448#define RXTX_REG114 0x0e4
449#define RXTX_REG121 0x0f2
450#define RXTX_REG121_SUMOS_CAL_CODE_RD(src) ((0x0000003e & (u32)(src)) >> 0x1)
451#define RXTX_REG125 0x0fa
452#define RXTX_REG125_PQ_REG_SET(dst, src) \
453 (((dst) & ~0x0000fe00) | (((u32) (src) << 9) & 0x0000fe00))
454#define RXTX_REG125_SIGN_PQ_SET(dst, src) \
455 (((dst) & ~0x00000100) | (((u32) (src) << 8) & 0x00000100))
456#define RXTX_REG125_SIGN_PQ_2C_SET(dst, src) \
457 (((dst) & ~0x00000080) | (((u32) (src) << 7) & 0x00000080))
458#define RXTX_REG125_PHZ_MANUALCODE_SET(dst, src) \
459 (((dst) & ~0x0000007c) | (((u32) (src) << 2) & 0x0000007c))
460#define RXTX_REG125_PHZ_MANUAL_SET(dst, src) \
461 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
462#define RXTX_REG127 0x0fe
463#define RXTX_REG127_FORCE_SUM_CAL_START_MASK 0x00000002
464#define RXTX_REG127_FORCE_LAT_CAL_START_MASK 0x00000004
465#define RXTX_REG127_FORCE_SUM_CAL_START_SET(dst, src) \
466 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
467#define RXTX_REG127_FORCE_LAT_CAL_START_SET(dst, src) \
468 (((dst) & ~0x00000004) | (((u32) (src) << 2) & 0x00000004))
469#define RXTX_REG127_LATCH_MAN_CAL_ENA_SET(dst, src) \
470 (((dst) & ~0x00000008) | (((u32) (src) << 3) & 0x00000008))
471#define RXTX_REG127_DO_LATCH_MANCAL_SET(dst, src) \
472 (((dst) & ~0x0000fc00) | (((u32) (src) << 10) & 0x0000fc00))
473#define RXTX_REG127_XO_LATCH_MANCAL_SET(dst, src) \
474 (((dst) & ~0x000003f0) | (((u32) (src) << 4) & 0x000003f0))
475#define RXTX_REG128 0x100
476#define RXTX_REG128_LATCH_CAL_WAIT_SEL_SET(dst, src) \
477 (((dst) & ~0x0000000c) | (((u32) (src) << 2) & 0x0000000c))
478#define RXTX_REG128_EO_LATCH_MANCAL_SET(dst, src) \
479 (((dst) & ~0x0000fc00) | (((u32) (src) << 10) & 0x0000fc00))
480#define RXTX_REG128_SO_LATCH_MANCAL_SET(dst, src) \
481 (((dst) & ~0x000003f0) | (((u32) (src) << 4) & 0x000003f0))
482#define RXTX_REG129 0x102
483#define RXTX_REG129_DE_LATCH_MANCAL_SET(dst, src) \
484 (((dst) & ~0x0000fc00) | (((u32) (src) << 10) & 0x0000fc00))
485#define RXTX_REG129_XE_LATCH_MANCAL_SET(dst, src) \
486 (((dst) & ~0x000003f0) | (((u32) (src) << 4) & 0x000003f0))
487#define RXTX_REG130 0x104
488#define RXTX_REG130_EE_LATCH_MANCAL_SET(dst, src) \
489 (((dst) & ~0x0000fc00) | (((u32) (src) << 10) & 0x0000fc00))
490#define RXTX_REG130_SE_LATCH_MANCAL_SET(dst, src) \
491 (((dst) & ~0x000003f0) | (((u32) (src) << 4) & 0x000003f0))
492#define RXTX_REG145 0x122
493#define RXTX_REG145_TX_IDLE_SATA_SET(dst, src) \
494 (((dst) & ~0x00000001) | (((u32) (src) << 0) & 0x00000001))
495#define RXTX_REG145_RXES_ENA_SET(dst, src) \
496 (((dst) & ~0x00000002) | (((u32) (src) << 1) & 0x00000002))
497#define RXTX_REG145_RXDFE_CONFIG_SET(dst, src) \
498 (((dst) & ~0x0000c000) | (((u32) (src) << 14) & 0x0000c000))
499#define RXTX_REG145_RXVWES_LATENA_SET(dst, src) \
500 (((dst) & ~0x00000004) | (((u32) (src) << 2) & 0x00000004))
501#define RXTX_REG147 0x126
502#define RXTX_REG148 0x128
503
504/* Clock macro type */
505enum cmu_type_t {
506 REF_CMU = 0, /* Clock macro is the internal reference clock */
507 PHY_CMU = 1, /* Clock macro is the PLL for the Serdes */
508};
509
510enum mux_type_t {
511 MUX_SELECT_ATA = 0, /* Switch the MUX to ATA */
512 MUX_SELECT_SGMMII = 0, /* Switch the MUX to SGMII */
513};
514
515enum clk_type_t {
516 CLK_EXT_DIFF = 0, /* External differential */
517 CLK_INT_DIFF = 1, /* Internal differential */
518 CLK_INT_SING = 2, /* Internal single ended */
519};
520
521enum phy_mode {
522 MODE_SATA = 0, /* List them for simple reference */
523 MODE_SGMII = 1,
524 MODE_PCIE = 2,
525 MODE_USB = 3,
526 MODE_XFI = 4,
527 MODE_MAX
528};
529
530struct xgene_sata_override_param {
531 u32 speed[MAX_LANE]; /* Index for override parameter per lane */
532 u32 txspeed[3]; /* Tx speed */
533 u32 txboostgain[MAX_LANE*3]; /* Tx freq boost and gain control */
534 u32 txeyetuning[MAX_LANE*3]; /* Tx eye tuning */
535 u32 txeyedirection[MAX_LANE*3]; /* Tx eye tuning direction */
536 u32 txamplitude[MAX_LANE*3]; /* Tx amplitude control */
537 u32 txprecursor_cn1[MAX_LANE*3]; /* Tx emphasis taps 1st pre-cursor */
538 u32 txprecursor_cn2[MAX_LANE*3]; /* Tx emphasis taps 2nd pre-cursor */
539 u32 txpostcursor_cp1[MAX_LANE*3]; /* Tx emphasis taps post-cursor */
540};
541
542struct xgene_phy_ctx {
543 struct device *dev;
544 struct phy *phy;
545 enum phy_mode mode; /* Mode of operation */
546 enum clk_type_t clk_type; /* Input clock selection */
547 void __iomem *sds_base; /* PHY CSR base addr */
548 struct clk *clk; /* Optional clock */
549
550 /* Override Serdes parameters */
551 struct xgene_sata_override_param sata_param;
552};
553
554/*
555 * For chip earlier than A3 version, enable this flag.
556 * To enable, pass boot argument phy_xgene.preA3Chip=1
557 */
558static int preA3Chip;
559MODULE_PARM_DESC(preA3Chip, "Enable pre-A3 chip support (1=enable 0=disable)");
560module_param_named(preA3Chip, preA3Chip, int, 0444);
561
562static void sds_wr(void __iomem *csr_base, u32 indirect_cmd_reg,
563 u32 indirect_data_reg, u32 addr, u32 data)
564{
565 unsigned long deadline = jiffies + HZ;
566 u32 val;
567 u32 cmd;
568
569 cmd = CFG_IND_WR_CMD_MASK | CFG_IND_CMD_DONE_MASK;
570 cmd = CFG_IND_ADDR_SET(cmd, addr);
571 writel(data, csr_base + indirect_data_reg);
572 readl(csr_base + indirect_data_reg); /* Force a barrier */
573 writel(cmd, csr_base + indirect_cmd_reg);
574 readl(csr_base + indirect_cmd_reg); /* Force a barrier */
575 do {
576 val = readl(csr_base + indirect_cmd_reg);
577 } while (!(val & CFG_IND_CMD_DONE_MASK) &&
578 time_before(jiffies, deadline));
579 if (!(val & CFG_IND_CMD_DONE_MASK))
580 pr_err("SDS WR timeout at 0x%p offset 0x%08X value 0x%08X\n",
581 csr_base + indirect_cmd_reg, addr, data);
582}
583
584static void sds_rd(void __iomem *csr_base, u32 indirect_cmd_reg,
585 u32 indirect_data_reg, u32 addr, u32 *data)
586{
587 unsigned long deadline = jiffies + HZ;
588 u32 val;
589 u32 cmd;
590
591 cmd = CFG_IND_RD_CMD_MASK | CFG_IND_CMD_DONE_MASK;
592 cmd = CFG_IND_ADDR_SET(cmd, addr);
593 writel(cmd, csr_base + indirect_cmd_reg);
594 readl(csr_base + indirect_cmd_reg); /* Force a barrier */
595 do {
596 val = readl(csr_base + indirect_cmd_reg);
597 } while (!(val & CFG_IND_CMD_DONE_MASK) &&
598 time_before(jiffies, deadline));
599 *data = readl(csr_base + indirect_data_reg);
600 if (!(val & CFG_IND_CMD_DONE_MASK))
601 pr_err("SDS WR timeout at 0x%p offset 0x%08X value 0x%08X\n",
602 csr_base + indirect_cmd_reg, addr, *data);
603}
604
605static void cmu_wr(struct xgene_phy_ctx *ctx, enum cmu_type_t cmu_type,
606 u32 reg, u32 data)
607{
608 void __iomem *sds_base = ctx->sds_base;
609 u32 val;
610
611 if (cmu_type == REF_CMU)
612 reg += SERDES_PLL_REF_INDIRECT_OFFSET;
613 else
614 reg += SERDES_PLL_INDIRECT_OFFSET;
615 sds_wr(sds_base, SATA_ENET_SDS_IND_CMD_REG,
616 SATA_ENET_SDS_IND_WDATA_REG, reg, data);
617 sds_rd(sds_base, SATA_ENET_SDS_IND_CMD_REG,
618 SATA_ENET_SDS_IND_RDATA_REG, reg, &val);
619 pr_debug("CMU WR addr 0x%X value 0x%08X <-> 0x%08X\n", reg, data, val);
620}
621
622static void cmu_rd(struct xgene_phy_ctx *ctx, enum cmu_type_t cmu_type,
623 u32 reg, u32 *data)
624{
625 void __iomem *sds_base = ctx->sds_base;
626
627 if (cmu_type == REF_CMU)
628 reg += SERDES_PLL_REF_INDIRECT_OFFSET;
629 else
630 reg += SERDES_PLL_INDIRECT_OFFSET;
631 sds_rd(sds_base, SATA_ENET_SDS_IND_CMD_REG,
632 SATA_ENET_SDS_IND_RDATA_REG, reg, data);
633 pr_debug("CMU RD addr 0x%X value 0x%08X\n", reg, *data);
634}
635
636static void cmu_toggle1to0(struct xgene_phy_ctx *ctx, enum cmu_type_t cmu_type,
637 u32 reg, u32 bits)
638{
639 u32 val;
640
641 cmu_rd(ctx, cmu_type, reg, &val);
642 val |= bits;
643 cmu_wr(ctx, cmu_type, reg, val);
644 cmu_rd(ctx, cmu_type, reg, &val);
645 val &= ~bits;
646 cmu_wr(ctx, cmu_type, reg, val);
647}
648
649static void cmu_clrbits(struct xgene_phy_ctx *ctx, enum cmu_type_t cmu_type,
650 u32 reg, u32 bits)
651{
652 u32 val;
653
654 cmu_rd(ctx, cmu_type, reg, &val);
655 val &= ~bits;
656 cmu_wr(ctx, cmu_type, reg, val);
657}
658
659static void cmu_setbits(struct xgene_phy_ctx *ctx, enum cmu_type_t cmu_type,
660 u32 reg, u32 bits)
661{
662 u32 val;
663
664 cmu_rd(ctx, cmu_type, reg, &val);
665 val |= bits;
666 cmu_wr(ctx, cmu_type, reg, val);
667}
668
669static void serdes_wr(struct xgene_phy_ctx *ctx, int lane, u32 reg, u32 data)
670{
671 void __iomem *sds_base = ctx->sds_base;
672 u32 val;
673
674 reg += SERDES_INDIRECT_OFFSET;
675 reg += lane * SERDES_LANE_STRIDE;
676 sds_wr(sds_base, SATA_ENET_SDS_IND_CMD_REG,
677 SATA_ENET_SDS_IND_WDATA_REG, reg, data);
678 sds_rd(sds_base, SATA_ENET_SDS_IND_CMD_REG,
679 SATA_ENET_SDS_IND_RDATA_REG, reg, &val);
680 pr_debug("SERDES WR addr 0x%X value 0x%08X <-> 0x%08X\n", reg, data,
681 val);
682}
683
684static void serdes_rd(struct xgene_phy_ctx *ctx, int lane, u32 reg, u32 *data)
685{
686 void __iomem *sds_base = ctx->sds_base;
687
688 reg += SERDES_INDIRECT_OFFSET;
689 reg += lane * SERDES_LANE_STRIDE;
690 sds_rd(sds_base, SATA_ENET_SDS_IND_CMD_REG,
691 SATA_ENET_SDS_IND_RDATA_REG, reg, data);
692 pr_debug("SERDES RD addr 0x%X value 0x%08X\n", reg, *data);
693}
694
695static void serdes_clrbits(struct xgene_phy_ctx *ctx, int lane, u32 reg,
696 u32 bits)
697{
698 u32 val;
699
700 serdes_rd(ctx, lane, reg, &val);
701 val &= ~bits;
702 serdes_wr(ctx, lane, reg, val);
703}
704
705static void serdes_setbits(struct xgene_phy_ctx *ctx, int lane, u32 reg,
706 u32 bits)
707{
708 u32 val;
709
710 serdes_rd(ctx, lane, reg, &val);
711 val |= bits;
712 serdes_wr(ctx, lane, reg, val);
713}
714
715static void xgene_phy_cfg_cmu_clk_type(struct xgene_phy_ctx *ctx,
716 enum cmu_type_t cmu_type,
717 enum clk_type_t clk_type)
718{
719 u32 val;
720
721 /* Set the reset sequence delay for TX ready assertion */
722 cmu_rd(ctx, cmu_type, CMU_REG12, &val);
723 val = CMU_REG12_STATE_DELAY9_SET(val, 0x1);
724 cmu_wr(ctx, cmu_type, CMU_REG12, val);
725 /* Set the programmable stage delays between various enable stages */
726 cmu_wr(ctx, cmu_type, CMU_REG13, 0x0222);
727 cmu_wr(ctx, cmu_type, CMU_REG14, 0x2225);
728
729 /* Configure clock type */
730 if (clk_type == CLK_EXT_DIFF) {
731 /* Select external clock mux */
732 cmu_rd(ctx, cmu_type, CMU_REG0, &val);
733 val = CMU_REG0_PLL_REF_SEL_SET(val, 0x0);
734 cmu_wr(ctx, cmu_type, CMU_REG0, val);
735 /* Select CMOS as reference clock */
736 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
737 val = CMU_REG1_REFCLK_CMOS_SEL_SET(val, 0x0);
738 cmu_wr(ctx, cmu_type, CMU_REG1, val);
739 dev_dbg(ctx->dev, "Set external reference clock\n");
740 } else if (clk_type == CLK_INT_DIFF) {
741 /* Select internal clock mux */
742 cmu_rd(ctx, cmu_type, CMU_REG0, &val);
743 val = CMU_REG0_PLL_REF_SEL_SET(val, 0x1);
744 cmu_wr(ctx, cmu_type, CMU_REG0, val);
745 /* Select CMOS as reference clock */
746 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
747 val = CMU_REG1_REFCLK_CMOS_SEL_SET(val, 0x1);
748 cmu_wr(ctx, cmu_type, CMU_REG1, val);
749 dev_dbg(ctx->dev, "Set internal reference clock\n");
750 } else if (clk_type == CLK_INT_SING) {
751 /*
752 * NOTE: This clock type is NOT support for controller
753 * whose internal clock shared in the PCIe controller
754 *
755 * Select internal clock mux
756 */
757 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
758 val = CMU_REG1_REFCLK_CMOS_SEL_SET(val, 0x1);
759 cmu_wr(ctx, cmu_type, CMU_REG1, val);
760 /* Select CML as reference clock */
761 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
762 val = CMU_REG1_REFCLK_CMOS_SEL_SET(val, 0x0);
763 cmu_wr(ctx, cmu_type, CMU_REG1, val);
764 dev_dbg(ctx->dev,
765 "Set internal single ended reference clock\n");
766 }
767}
768
769static void xgene_phy_sata_cfg_cmu_core(struct xgene_phy_ctx *ctx,
770 enum cmu_type_t cmu_type,
771 enum clk_type_t clk_type)
772{
773 u32 val;
774 int ref_100MHz;
775
776 if (cmu_type == REF_CMU) {
777 /* Set VCO calibration voltage threshold */
778 cmu_rd(ctx, cmu_type, CMU_REG34, &val);
779 val = CMU_REG34_VCO_CAL_VTH_LO_MAX_SET(val, 0x7);
780 val = CMU_REG34_VCO_CAL_VTH_HI_MAX_SET(val, 0xc);
781 val = CMU_REG34_VCO_CAL_VTH_LO_MIN_SET(val, 0x3);
782 val = CMU_REG34_VCO_CAL_VTH_HI_MIN_SET(val, 0x8);
783 cmu_wr(ctx, cmu_type, CMU_REG34, val);
784 }
785
786 /* Set the VCO calibration counter */
787 cmu_rd(ctx, cmu_type, CMU_REG0, &val);
788 if (cmu_type == REF_CMU || preA3Chip)
789 val = CMU_REG0_CAL_COUNT_RESOL_SET(val, 0x4);
790 else
791 val = CMU_REG0_CAL_COUNT_RESOL_SET(val, 0x7);
792 cmu_wr(ctx, cmu_type, CMU_REG0, val);
793
794 /* Configure PLL for calibration */
795 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
796 val = CMU_REG1_PLL_CP_SET(val, 0x1);
797 if (cmu_type == REF_CMU || preA3Chip)
798 val = CMU_REG1_PLL_CP_SEL_SET(val, 0x5);
799 else
800 val = CMU_REG1_PLL_CP_SEL_SET(val, 0x3);
801 if (cmu_type == REF_CMU)
802 val = CMU_REG1_PLL_MANUALCAL_SET(val, 0x0);
803 else
804 val = CMU_REG1_PLL_MANUALCAL_SET(val, 0x1);
805 cmu_wr(ctx, cmu_type, CMU_REG1, val);
806
807 if (cmu_type != REF_CMU)
808 cmu_clrbits(ctx, cmu_type, CMU_REG5, CMU_REG5_PLL_RESETB_MASK);
809
810 /* Configure the PLL for either 100MHz or 50MHz */
811 cmu_rd(ctx, cmu_type, CMU_REG2, &val);
812 if (cmu_type == REF_CMU) {
813 val = CMU_REG2_PLL_LFRES_SET(val, 0xa);
814 ref_100MHz = 1;
815 } else {
816 val = CMU_REG2_PLL_LFRES_SET(val, 0x3);
817 if (clk_type == CLK_EXT_DIFF)
818 ref_100MHz = 0;
819 else
820 ref_100MHz = 1;
821 }
822 if (ref_100MHz) {
823 val = CMU_REG2_PLL_FBDIV_SET(val, FBDIV_VAL_100M);
824 val = CMU_REG2_PLL_REFDIV_SET(val, REFDIV_VAL_100M);
825 } else {
826 val = CMU_REG2_PLL_FBDIV_SET(val, FBDIV_VAL_50M);
827 val = CMU_REG2_PLL_REFDIV_SET(val, REFDIV_VAL_50M);
828 }
829 cmu_wr(ctx, cmu_type, CMU_REG2, val);
830
831 /* Configure the VCO */
832 cmu_rd(ctx, cmu_type, CMU_REG3, &val);
833 if (cmu_type == REF_CMU) {
834 val = CMU_REG3_VCOVARSEL_SET(val, 0x3);
835 val = CMU_REG3_VCO_MOMSEL_INIT_SET(val, 0x10);
836 } else {
837 val = CMU_REG3_VCOVARSEL_SET(val, 0xF);
838 if (preA3Chip)
839 val = CMU_REG3_VCO_MOMSEL_INIT_SET(val, 0x15);
840 else
841 val = CMU_REG3_VCO_MOMSEL_INIT_SET(val, 0x1a);
842 val = CMU_REG3_VCO_MANMOMSEL_SET(val, 0x15);
843 }
844 cmu_wr(ctx, cmu_type, CMU_REG3, val);
845
846 /* Disable force PLL lock */
847 cmu_rd(ctx, cmu_type, CMU_REG26, &val);
848 val = CMU_REG26_FORCE_PLL_LOCK_SET(val, 0x0);
849 cmu_wr(ctx, cmu_type, CMU_REG26, val);
850
851 /* Setup PLL loop filter */
852 cmu_rd(ctx, cmu_type, CMU_REG5, &val);
853 val = CMU_REG5_PLL_LFSMCAP_SET(val, 0x3);
854 val = CMU_REG5_PLL_LFCAP_SET(val, 0x3);
855 if (cmu_type == REF_CMU || !preA3Chip)
856 val = CMU_REG5_PLL_LOCK_RESOLUTION_SET(val, 0x7);
857 else
858 val = CMU_REG5_PLL_LOCK_RESOLUTION_SET(val, 0x4);
859 cmu_wr(ctx, cmu_type, CMU_REG5, val);
860
861 /* Enable or disable manual calibration */
862 cmu_rd(ctx, cmu_type, CMU_REG6, &val);
863 val = CMU_REG6_PLL_VREGTRIM_SET(val, preA3Chip ? 0x0 : 0x2);
864 val = CMU_REG6_MAN_PVT_CAL_SET(val, preA3Chip ? 0x1 : 0x0);
865 cmu_wr(ctx, cmu_type, CMU_REG6, val);
866
867 /* Configure lane for 20-bits */
868 if (cmu_type == PHY_CMU) {
869 cmu_rd(ctx, cmu_type, CMU_REG9, &val);
870 val = CMU_REG9_TX_WORD_MODE_CH1_SET(val,
871 CMU_REG9_WORD_LEN_20BIT);
872 val = CMU_REG9_TX_WORD_MODE_CH0_SET(val,
873 CMU_REG9_WORD_LEN_20BIT);
874 val = CMU_REG9_PLL_POST_DIVBY2_SET(val, 0x1);
875 if (!preA3Chip) {
876 val = CMU_REG9_VBG_BYPASSB_SET(val, 0x0);
877 val = CMU_REG9_IGEN_BYPASS_SET(val , 0x0);
878 }
879 cmu_wr(ctx, cmu_type, CMU_REG9, val);
880
881 if (!preA3Chip) {
882 cmu_rd(ctx, cmu_type, CMU_REG10, &val);
883 val = CMU_REG10_VREG_REFSEL_SET(val, 0x1);
884 cmu_wr(ctx, cmu_type, CMU_REG10, val);
885 }
886 }
887
888 cmu_rd(ctx, cmu_type, CMU_REG16, &val);
889 val = CMU_REG16_CALIBRATION_DONE_OVERRIDE_SET(val, 0x1);
890 val = CMU_REG16_BYPASS_PLL_LOCK_SET(val, 0x1);
891 if (cmu_type == REF_CMU || preA3Chip)
892 val = CMU_REG16_VCOCAL_WAIT_BTW_CODE_SET(val, 0x4);
893 else
894 val = CMU_REG16_VCOCAL_WAIT_BTW_CODE_SET(val, 0x7);
895 cmu_wr(ctx, cmu_type, CMU_REG16, val);
896
897 /* Configure for SATA */
898 cmu_rd(ctx, cmu_type, CMU_REG30, &val);
899 val = CMU_REG30_PCIE_MODE_SET(val, 0x0);
900 val = CMU_REG30_LOCK_COUNT_SET(val, 0x3);
901 cmu_wr(ctx, cmu_type, CMU_REG30, val);
902
903 /* Disable state machine bypass */
904 cmu_wr(ctx, cmu_type, CMU_REG31, 0xF);
905
906 cmu_rd(ctx, cmu_type, CMU_REG32, &val);
907 val = CMU_REG32_PVT_CAL_WAIT_SEL_SET(val, 0x3);
908 if (cmu_type == REF_CMU || preA3Chip)
909 val = CMU_REG32_IREF_ADJ_SET(val, 0x3);
910 else
911 val = CMU_REG32_IREF_ADJ_SET(val, 0x1);
912 cmu_wr(ctx, cmu_type, CMU_REG32, val);
913
914 /* Set VCO calibration threshold */
915 if (cmu_type != REF_CMU && preA3Chip)
916 cmu_wr(ctx, cmu_type, CMU_REG34, 0x8d27);
917 else
918 cmu_wr(ctx, cmu_type, CMU_REG34, 0x873c);
919
920 /* Set CTLE Override and override waiting from state machine */
921 cmu_wr(ctx, cmu_type, CMU_REG37, 0xF00F);
922}
923
924static void xgene_phy_ssc_enable(struct xgene_phy_ctx *ctx,
925 enum cmu_type_t cmu_type)
926{
927 u32 val;
928
929 /* Set SSC modulation value */
930 cmu_rd(ctx, cmu_type, CMU_REG35, &val);
931 val = CMU_REG35_PLL_SSC_MOD_SET(val, 98);
932 cmu_wr(ctx, cmu_type, CMU_REG35, val);
933
934 /* Enable SSC, set vertical step and DSM value */
935 cmu_rd(ctx, cmu_type, CMU_REG36, &val);
936 val = CMU_REG36_PLL_SSC_VSTEP_SET(val, 30);
937 val = CMU_REG36_PLL_SSC_EN_SET(val, 1);
938 val = CMU_REG36_PLL_SSC_DSMSEL_SET(val, 1);
939 cmu_wr(ctx, cmu_type, CMU_REG36, val);
940
941 /* Reset the PLL */
942 cmu_clrbits(ctx, cmu_type, CMU_REG5, CMU_REG5_PLL_RESETB_MASK);
943 cmu_setbits(ctx, cmu_type, CMU_REG5, CMU_REG5_PLL_RESETB_MASK);
944
945 /* Force VCO calibration to restart */
946 cmu_toggle1to0(ctx, cmu_type, CMU_REG32,
947 CMU_REG32_FORCE_VCOCAL_START_MASK);
948}
949
950static void xgene_phy_sata_cfg_lanes(struct xgene_phy_ctx *ctx)
951{
952 u32 val;
953 u32 reg;
954 int i;
955 int lane;
956
957 for (lane = 0; lane < MAX_LANE; lane++) {
958 serdes_wr(ctx, lane, RXTX_REG147, 0x6);
959
960 /* Set boost control for quarter, half, and full rate */
961 serdes_rd(ctx, lane, RXTX_REG0, &val);
962 val = RXTX_REG0_CTLE_EQ_HR_SET(val, 0x10);
963 val = RXTX_REG0_CTLE_EQ_QR_SET(val, 0x10);
964 val = RXTX_REG0_CTLE_EQ_FR_SET(val, 0x10);
965 serdes_wr(ctx, lane, RXTX_REG0, val);
966
967 /* Set boost control value */
968 serdes_rd(ctx, lane, RXTX_REG1, &val);
969 val = RXTX_REG1_RXACVCM_SET(val, 0x7);
970 val = RXTX_REG1_CTLE_EQ_SET(val,
971 ctx->sata_param.txboostgain[lane * 3 +
972 ctx->sata_param.speed[lane]]);
973 serdes_wr(ctx, lane, RXTX_REG1, val);
974
975 /* Latch VTT value based on the termination to ground and
976 enable TX FIFO */
977 serdes_rd(ctx, lane, RXTX_REG2, &val);
978 val = RXTX_REG2_VTT_ENA_SET(val, 0x1);
979 val = RXTX_REG2_VTT_SEL_SET(val, 0x1);
980 val = RXTX_REG2_TX_FIFO_ENA_SET(val, 0x1);
981 serdes_wr(ctx, lane, RXTX_REG2, val);
982
983 /* Configure Tx for 20-bits */
984 serdes_rd(ctx, lane, RXTX_REG4, &val);
985 val = RXTX_REG4_TX_WORD_MODE_SET(val, CMU_REG9_WORD_LEN_20BIT);
986 serdes_wr(ctx, lane, RXTX_REG4, val);
987
988 if (!preA3Chip) {
989 serdes_rd(ctx, lane, RXTX_REG1, &val);
990 val = RXTX_REG1_RXVREG1_SET(val, 0x2);
991 val = RXTX_REG1_RXIREF_ADJ_SET(val, 0x2);
992 serdes_wr(ctx, lane, RXTX_REG1, val);
993 }
994
995 /* Set pre-emphasis first 1 and 2, and post-emphasis values */
996 serdes_rd(ctx, lane, RXTX_REG5, &val);
997 val = RXTX_REG5_TX_CN1_SET(val,
998 ctx->sata_param.txprecursor_cn1[lane * 3 +
999 ctx->sata_param.speed[lane]]);
1000 val = RXTX_REG5_TX_CP1_SET(val,
1001 ctx->sata_param.txpostcursor_cp1[lane * 3 +
1002 ctx->sata_param.speed[lane]]);
1003 val = RXTX_REG5_TX_CN2_SET(val,
1004 ctx->sata_param.txprecursor_cn2[lane * 3 +
1005 ctx->sata_param.speed[lane]]);
1006 serdes_wr(ctx, lane, RXTX_REG5, val);
1007
1008 /* Set TX amplitude value */
1009 serdes_rd(ctx, lane, RXTX_REG6, &val);
1010 val = RXTX_REG6_TXAMP_CNTL_SET(val,
1011 ctx->sata_param.txamplitude[lane * 3 +
1012 ctx->sata_param.speed[lane]]);
1013 val = RXTX_REG6_TXAMP_ENA_SET(val, 0x1);
1014 val = RXTX_REG6_TX_IDLE_SET(val, 0x0);
1015 val = RXTX_REG6_RX_BIST_RESYNC_SET(val, 0x0);
1016 val = RXTX_REG6_RX_BIST_ERRCNT_RD_SET(val, 0x0);
1017 serdes_wr(ctx, lane, RXTX_REG6, val);
1018
1019 /* Configure Rx for 20-bits */
1020 serdes_rd(ctx, lane, RXTX_REG7, &val);
1021 val = RXTX_REG7_BIST_ENA_RX_SET(val, 0x0);
1022 val = RXTX_REG7_RX_WORD_MODE_SET(val, CMU_REG9_WORD_LEN_20BIT);
1023 serdes_wr(ctx, lane, RXTX_REG7, val);
1024
1025 /* Set CDR and LOS values and enable Rx SSC */
1026 serdes_rd(ctx, lane, RXTX_REG8, &val);
1027 val = RXTX_REG8_CDR_LOOP_ENA_SET(val, 0x1);
1028 val = RXTX_REG8_CDR_BYPASS_RXLOS_SET(val, 0x0);
1029 val = RXTX_REG8_SSC_ENABLE_SET(val, 0x1);
1030 val = RXTX_REG8_SD_DISABLE_SET(val, 0x0);
1031 val = RXTX_REG8_SD_VREF_SET(val, 0x4);
1032 serdes_wr(ctx, lane, RXTX_REG8, val);
1033
1034 /* Set phase adjust upper/lower limits */
1035 serdes_rd(ctx, lane, RXTX_REG11, &val);
1036 val = RXTX_REG11_PHASE_ADJUST_LIMIT_SET(val, 0x0);
1037 serdes_wr(ctx, lane, RXTX_REG11, val);
1038
1039 /* Enable Latch Off; disable SUMOS and Tx termination */
1040 serdes_rd(ctx, lane, RXTX_REG12, &val);
1041 val = RXTX_REG12_LATCH_OFF_ENA_SET(val, 0x1);
1042 val = RXTX_REG12_SUMOS_ENABLE_SET(val, 0x0);
1043 val = RXTX_REG12_RX_DET_TERM_ENABLE_SET(val, 0x0);
1044 serdes_wr(ctx, lane, RXTX_REG12, val);
1045
1046 /* Set period error latch to 512T and enable BWL */
1047 serdes_rd(ctx, lane, RXTX_REG26, &val);
1048 val = RXTX_REG26_PERIOD_ERROR_LATCH_SET(val, 0x0);
1049 val = RXTX_REG26_BLWC_ENA_SET(val, 0x1);
1050 serdes_wr(ctx, lane, RXTX_REG26, val);
1051
1052 serdes_wr(ctx, lane, RXTX_REG28, 0x0);
1053
1054 /* Set DFE loop preset value */
1055 serdes_wr(ctx, lane, RXTX_REG31, 0x0);
1056
1057 /* Set Eye Monitor counter width to 12-bit */
1058 serdes_rd(ctx, lane, RXTX_REG61, &val);
1059 val = RXTX_REG61_ISCAN_INBERT_SET(val, 0x1);
1060 val = RXTX_REG61_LOADFREQ_SHIFT_SET(val, 0x0);
1061 val = RXTX_REG61_EYE_COUNT_WIDTH_SEL_SET(val, 0x0);
1062 serdes_wr(ctx, lane, RXTX_REG61, val);
1063
1064 serdes_rd(ctx, lane, RXTX_REG62, &val);
1065 val = RXTX_REG62_PERIOD_H1_QLATCH_SET(val, 0x0);
1066 serdes_wr(ctx, lane, RXTX_REG62, val);
1067
1068 /* Set BW select tap X for DFE loop */
1069 for (i = 0; i < 9; i++) {
1070 reg = RXTX_REG81 + i * 2;
1071 serdes_rd(ctx, lane, reg, &val);
1072 val = RXTX_REG89_MU_TH7_SET(val, 0xe);
1073 val = RXTX_REG89_MU_TH8_SET(val, 0xe);
1074 val = RXTX_REG89_MU_TH9_SET(val, 0xe);
1075 serdes_wr(ctx, lane, reg, val);
1076 }
1077
1078 /* Set BW select tap X for frequency adjust loop */
1079 for (i = 0; i < 3; i++) {
1080 reg = RXTX_REG96 + i * 2;
1081 serdes_rd(ctx, lane, reg, &val);
1082 val = RXTX_REG96_MU_FREQ1_SET(val, 0x10);
1083 val = RXTX_REG96_MU_FREQ2_SET(val, 0x10);
1084 val = RXTX_REG96_MU_FREQ3_SET(val, 0x10);
1085 serdes_wr(ctx, lane, reg, val);
1086 }
1087
1088 /* Set BW select tap X for phase adjust loop */
1089 for (i = 0; i < 3; i++) {
1090 reg = RXTX_REG99 + i * 2;
1091 serdes_rd(ctx, lane, reg, &val);
1092 val = RXTX_REG99_MU_PHASE1_SET(val, 0x7);
1093 val = RXTX_REG99_MU_PHASE2_SET(val, 0x7);
1094 val = RXTX_REG99_MU_PHASE3_SET(val, 0x7);
1095 serdes_wr(ctx, lane, reg, val);
1096 }
1097
1098 serdes_rd(ctx, lane, RXTX_REG102, &val);
1099 val = RXTX_REG102_FREQLOOP_LIMIT_SET(val, 0x0);
1100 serdes_wr(ctx, lane, RXTX_REG102, val);
1101
1102 serdes_wr(ctx, lane, RXTX_REG114, 0xffe0);
1103
1104 serdes_rd(ctx, lane, RXTX_REG125, &val);
1105 val = RXTX_REG125_SIGN_PQ_SET(val,
1106 ctx->sata_param.txeyedirection[lane * 3 +
1107 ctx->sata_param.speed[lane]]);
1108 val = RXTX_REG125_PQ_REG_SET(val,
1109 ctx->sata_param.txeyetuning[lane * 3 +
1110 ctx->sata_param.speed[lane]]);
1111 val = RXTX_REG125_PHZ_MANUAL_SET(val, 0x1);
1112 serdes_wr(ctx, lane, RXTX_REG125, val);
1113
1114 serdes_rd(ctx, lane, RXTX_REG127, &val);
1115 val = RXTX_REG127_LATCH_MAN_CAL_ENA_SET(val, 0x0);
1116 serdes_wr(ctx, lane, RXTX_REG127, val);
1117
1118 serdes_rd(ctx, lane, RXTX_REG128, &val);
1119 val = RXTX_REG128_LATCH_CAL_WAIT_SEL_SET(val, 0x3);
1120 serdes_wr(ctx, lane, RXTX_REG128, val);
1121
1122 serdes_rd(ctx, lane, RXTX_REG145, &val);
1123 val = RXTX_REG145_RXDFE_CONFIG_SET(val, 0x3);
1124 val = RXTX_REG145_TX_IDLE_SATA_SET(val, 0x0);
1125 if (preA3Chip) {
1126 val = RXTX_REG145_RXES_ENA_SET(val, 0x1);
1127 val = RXTX_REG145_RXVWES_LATENA_SET(val, 0x1);
1128 } else {
1129 val = RXTX_REG145_RXES_ENA_SET(val, 0x0);
1130 val = RXTX_REG145_RXVWES_LATENA_SET(val, 0x0);
1131 }
1132 serdes_wr(ctx, lane, RXTX_REG145, val);
1133
1134 /*
1135 * Set Rx LOS filter clock rate, sample rate, and threshold
1136 * windows
1137 */
1138 for (i = 0; i < 4; i++) {
1139 reg = RXTX_REG148 + i * 2;
1140 serdes_wr(ctx, lane, reg, 0xFFFF);
1141 }
1142 }
1143}
1144
1145static int xgene_phy_cal_rdy_chk(struct xgene_phy_ctx *ctx,
1146 enum cmu_type_t cmu_type,
1147 enum clk_type_t clk_type)
1148{
1149 void __iomem *csr_serdes = ctx->sds_base;
1150 int loop;
1151 u32 val;
1152
1153 /* Release PHY main reset */
1154 writel(0xdf, csr_serdes + SATA_ENET_SDS_RST_CTL);
1155 readl(csr_serdes + SATA_ENET_SDS_RST_CTL); /* Force a barrier */
1156
1157 if (cmu_type != REF_CMU) {
1158 cmu_setbits(ctx, cmu_type, CMU_REG5, CMU_REG5_PLL_RESETB_MASK);
1159 /*
1160 * As per PHY design spec, the PLL reset requires a minimum
1161 * of 800us.
1162 */
1163 usleep_range(800, 1000);
1164
1165 cmu_rd(ctx, cmu_type, CMU_REG1, &val);
1166 val = CMU_REG1_PLL_MANUALCAL_SET(val, 0x0);
1167 cmu_wr(ctx, cmu_type, CMU_REG1, val);
1168 /*
1169 * As per PHY design spec, the PLL auto calibration requires
1170 * a minimum of 800us.
1171 */
1172 usleep_range(800, 1000);
1173
1174 cmu_toggle1to0(ctx, cmu_type, CMU_REG32,
1175 CMU_REG32_FORCE_VCOCAL_START_MASK);
1176 /*
1177 * As per PHY design spec, the PLL requires a minimum of
1178 * 800us to settle.
1179 */
1180 usleep_range(800, 1000);
1181 }
1182
1183 if (!preA3Chip)
1184 goto skip_manual_cal;
1185
1186 /*
1187 * Configure the termination resister calibration
1188 * The serial receive pins, RXP/RXN, have TERMination resistor
1189 * that is required to be calibrated.
1190 */
1191 cmu_rd(ctx, cmu_type, CMU_REG17, &val);
1192 val = CMU_REG17_PVT_CODE_R2A_SET(val, 0x12);
1193 val = CMU_REG17_RESERVED_7_SET(val, 0x0);
1194 cmu_wr(ctx, cmu_type, CMU_REG17, val);
1195 cmu_toggle1to0(ctx, cmu_type, CMU_REG17,
1196 CMU_REG17_PVT_TERM_MAN_ENA_MASK);
1197 /*
1198 * The serial transmit pins, TXP/TXN, have Pull-UP and Pull-DOWN
1199 * resistors that are required to the calibrated.
1200 * Configure the pull DOWN calibration
1201 */
1202 cmu_rd(ctx, cmu_type, CMU_REG17, &val);
1203 val = CMU_REG17_PVT_CODE_R2A_SET(val, 0x29);
1204 val = CMU_REG17_RESERVED_7_SET(val, 0x0);
1205 cmu_wr(ctx, cmu_type, CMU_REG17, val);
1206 cmu_toggle1to0(ctx, cmu_type, CMU_REG16,
1207 CMU_REG16_PVT_DN_MAN_ENA_MASK);
1208 /* Configure the pull UP calibration */
1209 cmu_rd(ctx, cmu_type, CMU_REG17, &val);
1210 val = CMU_REG17_PVT_CODE_R2A_SET(val, 0x28);
1211 val = CMU_REG17_RESERVED_7_SET(val, 0x0);
1212 cmu_wr(ctx, cmu_type, CMU_REG17, val);
1213 cmu_toggle1to0(ctx, cmu_type, CMU_REG16,
1214 CMU_REG16_PVT_UP_MAN_ENA_MASK);
1215
1216skip_manual_cal:
1217 /* Poll the PLL calibration completion status for at least 1 ms */
1218 loop = 100;
1219 do {
1220 cmu_rd(ctx, cmu_type, CMU_REG7, &val);
1221 if (CMU_REG7_PLL_CALIB_DONE_RD(val))
1222 break;
1223 /*
1224 * As per PHY design spec, PLL calibration status requires
1225 * a minimum of 10us to be updated.
1226 */
1227 usleep_range(10, 100);
1228 } while (--loop > 0);
1229
1230 cmu_rd(ctx, cmu_type, CMU_REG7, &val);
1231 dev_dbg(ctx->dev, "PLL calibration %s\n",
1232 CMU_REG7_PLL_CALIB_DONE_RD(val) ? "done" : "failed");
1233 if (CMU_REG7_VCO_CAL_FAIL_RD(val)) {
1234 dev_err(ctx->dev,
1235 "PLL calibration failed due to VCO failure\n");
1236 return -1;
1237 }
1238 dev_dbg(ctx->dev, "PLL calibration successful\n");
1239
1240 cmu_rd(ctx, cmu_type, CMU_REG15, &val);
1241 dev_dbg(ctx->dev, "PHY Tx is %sready\n", val & 0x300 ? "" : "not ");
1242 return 0;
1243}
1244
1245static void xgene_phy_pdwn_force_vco(struct xgene_phy_ctx *ctx,
1246 enum cmu_type_t cmu_type,
1247 enum clk_type_t clk_type)
1248{
1249 u32 val;
1250
1251 dev_dbg(ctx->dev, "Reset VCO and re-start again\n");
1252 if (cmu_type == PHY_CMU) {
1253 cmu_rd(ctx, cmu_type, CMU_REG16, &val);
1254 val = CMU_REG16_VCOCAL_WAIT_BTW_CODE_SET(val, 0x7);
1255 cmu_wr(ctx, cmu_type, CMU_REG16, val);
1256 }
1257
1258 cmu_toggle1to0(ctx, cmu_type, CMU_REG0, CMU_REG0_PDOWN_MASK);
1259 cmu_toggle1to0(ctx, cmu_type, CMU_REG32,
1260 CMU_REG32_FORCE_VCOCAL_START_MASK);
1261}
1262
1263static int xgene_phy_hw_init_sata(struct xgene_phy_ctx *ctx,
1264 enum clk_type_t clk_type, int ssc_enable)
1265{
1266 void __iomem *sds_base = ctx->sds_base;
1267 u32 val;
1268 int i;
1269
1270 /* Configure the PHY for operation */
1271 dev_dbg(ctx->dev, "Reset PHY\n");
1272 /* Place PHY into reset */
1273 writel(0x0, sds_base + SATA_ENET_SDS_RST_CTL);
1274 val = readl(sds_base + SATA_ENET_SDS_RST_CTL); /* Force a barrier */
1275 /* Release PHY lane from reset (active high) */
1276 writel(0x20, sds_base + SATA_ENET_SDS_RST_CTL);
1277 readl(sds_base + SATA_ENET_SDS_RST_CTL); /* Force a barrier */
1278 /* Release all PHY module out of reset except PHY main reset */
1279 writel(0xde, sds_base + SATA_ENET_SDS_RST_CTL);
1280 readl(sds_base + SATA_ENET_SDS_RST_CTL); /* Force a barrier */
1281
1282 /* Set the operation speed */
1283 val = readl(sds_base + SATA_ENET_SDS_CTL1);
1284 val = CFG_I_SPD_SEL_CDR_OVR1_SET(val,
1285 ctx->sata_param.txspeed[ctx->sata_param.speed[0]]);
1286 writel(val, sds_base + SATA_ENET_SDS_CTL1);
1287
1288 dev_dbg(ctx->dev, "Set the customer pin mode to SATA\n");
1289 val = readl(sds_base + SATA_ENET_SDS_CTL0);
1290 val = REGSPEC_CFG_I_CUSTOMER_PIN_MODE0_SET(val, 0x4421);
1291 writel(val, sds_base + SATA_ENET_SDS_CTL0);
1292
1293 /* Configure the clock macro unit (CMU) clock type */
1294 xgene_phy_cfg_cmu_clk_type(ctx, PHY_CMU, clk_type);
1295
1296 /* Configure the clock macro */
1297 xgene_phy_sata_cfg_cmu_core(ctx, PHY_CMU, clk_type);
1298
1299 /* Enable SSC if enabled */
1300 if (ssc_enable)
1301 xgene_phy_ssc_enable(ctx, PHY_CMU);
1302
1303 /* Configure PHY lanes */
1304 xgene_phy_sata_cfg_lanes(ctx);
1305
1306 /* Set Rx/Tx 20-bit */
1307 val = readl(sds_base + SATA_ENET_SDS_PCS_CTL0);
1308 val = REGSPEC_CFG_I_RX_WORDMODE0_SET(val, 0x3);
1309 val = REGSPEC_CFG_I_TX_WORDMODE0_SET(val, 0x3);
1310 writel(val, sds_base + SATA_ENET_SDS_PCS_CTL0);
1311
1312 /* Start PLL calibration and try for three times */
1313 i = 10;
1314 do {
1315 if (!xgene_phy_cal_rdy_chk(ctx, PHY_CMU, clk_type))
1316 break;
1317 /* If failed, toggle the VCO power signal and start again */
1318 xgene_phy_pdwn_force_vco(ctx, PHY_CMU, clk_type);
1319 } while (--i > 0);
1320 /* Even on failure, allow to continue any way */
1321 if (i <= 0)
1322 dev_err(ctx->dev, "PLL calibration failed\n");
1323
1324 return 0;
1325}
1326
1327static int xgene_phy_hw_initialize(struct xgene_phy_ctx *ctx,
1328 enum clk_type_t clk_type,
1329 int ssc_enable)
1330{
1331 int rc;
1332
1333 dev_dbg(ctx->dev, "PHY init clk type %d\n", clk_type);
1334
1335 if (ctx->mode == MODE_SATA) {
1336 rc = xgene_phy_hw_init_sata(ctx, clk_type, ssc_enable);
1337 if (rc)
1338 return rc;
1339 } else {
1340 dev_err(ctx->dev, "Un-supported customer pin mode %d\n",
1341 ctx->mode);
1342 return -ENODEV;
1343 }
1344
1345 return 0;
1346}
1347
1348/*
1349 * Receiver Offset Calibration:
1350 *
1351 * Calibrate the receiver signal path offset in two steps - summar and
1352 * latch calibrations
1353 */
1354static void xgene_phy_force_lat_summer_cal(struct xgene_phy_ctx *ctx, int lane)
1355{
1356 int i;
1357 struct {
1358 u32 reg;
1359 u32 val;
1360 } serdes_reg[] = {
1361 {RXTX_REG38, 0x0},
1362 {RXTX_REG39, 0xff00},
1363 {RXTX_REG40, 0xffff},
1364 {RXTX_REG41, 0xffff},
1365 {RXTX_REG42, 0xffff},
1366 {RXTX_REG43, 0xffff},
1367 {RXTX_REG44, 0xffff},
1368 {RXTX_REG45, 0xffff},
1369 {RXTX_REG46, 0xffff},
1370 {RXTX_REG47, 0xfffc},
1371 {RXTX_REG48, 0x0},
1372 {RXTX_REG49, 0x0},
1373 {RXTX_REG50, 0x0},
1374 {RXTX_REG51, 0x0},
1375 {RXTX_REG52, 0x0},
1376 {RXTX_REG53, 0x0},
1377 {RXTX_REG54, 0x0},
1378 {RXTX_REG55, 0x0},
1379 };
1380
1381 /* Start SUMMER calibration */
1382 serdes_setbits(ctx, lane, RXTX_REG127,
1383 RXTX_REG127_FORCE_SUM_CAL_START_MASK);
1384 /*
1385 * As per PHY design spec, the Summer calibration requires a minimum
1386 * of 100us to complete.
1387 */
1388 usleep_range(100, 500);
1389 serdes_clrbits(ctx, lane, RXTX_REG127,
1390 RXTX_REG127_FORCE_SUM_CAL_START_MASK);
1391 /*
1392 * As per PHY design spec, the auto calibration requires a minimum
1393 * of 100us to complete.
1394 */
1395 usleep_range(100, 500);
1396
1397 /* Start latch calibration */
1398 serdes_setbits(ctx, lane, RXTX_REG127,
1399 RXTX_REG127_FORCE_LAT_CAL_START_MASK);
1400 /*
1401 * As per PHY design spec, the latch calibration requires a minimum
1402 * of 100us to complete.
1403 */
1404 usleep_range(100, 500);
1405 serdes_clrbits(ctx, lane, RXTX_REG127,
1406 RXTX_REG127_FORCE_LAT_CAL_START_MASK);
1407
1408 /* Configure the PHY lane for calibration */
1409 serdes_wr(ctx, lane, RXTX_REG28, 0x7);
1410 serdes_wr(ctx, lane, RXTX_REG31, 0x7e00);
1411 serdes_clrbits(ctx, lane, RXTX_REG4,
1412 RXTX_REG4_TX_LOOPBACK_BUF_EN_MASK);
1413 serdes_clrbits(ctx, lane, RXTX_REG7,
1414 RXTX_REG7_LOOP_BACK_ENA_CTLE_MASK);
1415 for (i = 0; i < ARRAY_SIZE(serdes_reg); i++)
1416 serdes_wr(ctx, lane, serdes_reg[i].reg,
1417 serdes_reg[i].val);
1418}
1419
1420static void xgene_phy_reset_rxd(struct xgene_phy_ctx *ctx, int lane)
1421{
1422 /* Reset digital Rx */
1423 serdes_clrbits(ctx, lane, RXTX_REG7, RXTX_REG7_RESETB_RXD_MASK);
1424 /* As per PHY design spec, the reset requires a minimum of 100us. */
1425 usleep_range(100, 150);
1426 serdes_setbits(ctx, lane, RXTX_REG7, RXTX_REG7_RESETB_RXD_MASK);
1427}
1428
1429static int xgene_phy_get_avg(int accum, int samples)
1430{
1431 return (accum + (samples / 2)) / samples;
1432}
1433
1434static void xgene_phy_gen_avg_val(struct xgene_phy_ctx *ctx, int lane)
1435{
1436 int max_loop = 10;
1437 int avg_loop = 0;
1438 int lat_do = 0, lat_xo = 0, lat_eo = 0, lat_so = 0;
1439 int lat_de = 0, lat_xe = 0, lat_ee = 0, lat_se = 0;
1440 int sum_cal = 0;
1441 int lat_do_itr, lat_xo_itr, lat_eo_itr, lat_so_itr;
1442 int lat_de_itr, lat_xe_itr, lat_ee_itr, lat_se_itr;
1443 int sum_cal_itr;
1444 int fail_even;
1445 int fail_odd;
1446 u32 val;
1447
1448 dev_dbg(ctx->dev, "Generating avg calibration value for lane %d\n",
1449 lane);
1450
1451 /* Enable RX Hi-Z termination */
1452 serdes_setbits(ctx, lane, RXTX_REG12,
1453 RXTX_REG12_RX_DET_TERM_ENABLE_MASK);
1454 /* Turn off DFE */
1455 serdes_wr(ctx, lane, RXTX_REG28, 0x0000);
1456 /* DFE Presets to zero */
1457 serdes_wr(ctx, lane, RXTX_REG31, 0x0000);
1458
1459 /*
1460 * Receiver Offset Calibration:
1461 * Calibrate the receiver signal path offset in two steps - summar
1462 * and latch calibration.
1463 * Runs the "Receiver Offset Calibration multiple times to determine
1464 * the average value to use.
1465 */
1466 while (avg_loop < max_loop) {
1467 /* Start the calibration */
1468 xgene_phy_force_lat_summer_cal(ctx, lane);
1469
1470 serdes_rd(ctx, lane, RXTX_REG21, &val);
1471 lat_do_itr = RXTX_REG21_DO_LATCH_CALOUT_RD(val);
1472 lat_xo_itr = RXTX_REG21_XO_LATCH_CALOUT_RD(val);
1473 fail_odd = RXTX_REG21_LATCH_CAL_FAIL_ODD_RD(val);
1474
1475 serdes_rd(ctx, lane, RXTX_REG22, &val);
1476 lat_eo_itr = RXTX_REG22_EO_LATCH_CALOUT_RD(val);
1477 lat_so_itr = RXTX_REG22_SO_LATCH_CALOUT_RD(val);
1478 fail_even = RXTX_REG22_LATCH_CAL_FAIL_EVEN_RD(val);
1479
1480 serdes_rd(ctx, lane, RXTX_REG23, &val);
1481 lat_de_itr = RXTX_REG23_DE_LATCH_CALOUT_RD(val);
1482 lat_xe_itr = RXTX_REG23_XE_LATCH_CALOUT_RD(val);
1483
1484 serdes_rd(ctx, lane, RXTX_REG24, &val);
1485 lat_ee_itr = RXTX_REG24_EE_LATCH_CALOUT_RD(val);
1486 lat_se_itr = RXTX_REG24_SE_LATCH_CALOUT_RD(val);
1487
1488 serdes_rd(ctx, lane, RXTX_REG121, &val);
1489 sum_cal_itr = RXTX_REG121_SUMOS_CAL_CODE_RD(val);
1490
1491 /* Check for failure. If passed, sum them for averaging */
1492 if ((fail_even == 0 || fail_even == 1) &&
1493 (fail_odd == 0 || fail_odd == 1)) {
1494 lat_do += lat_do_itr;
1495 lat_xo += lat_xo_itr;
1496 lat_eo += lat_eo_itr;
1497 lat_so += lat_so_itr;
1498 lat_de += lat_de_itr;
1499 lat_xe += lat_xe_itr;
1500 lat_ee += lat_ee_itr;
1501 lat_se += lat_se_itr;
1502 sum_cal += sum_cal_itr;
1503
1504 dev_dbg(ctx->dev, "Iteration %d:\n", avg_loop);
1505 dev_dbg(ctx->dev, "DO 0x%x XO 0x%x EO 0x%x SO 0x%x\n",
1506 lat_do_itr, lat_xo_itr, lat_eo_itr,
1507 lat_so_itr);
1508 dev_dbg(ctx->dev, "DE 0x%x XE 0x%x EE 0x%x SE 0x%x\n",
1509 lat_de_itr, lat_xe_itr, lat_ee_itr,
1510 lat_se_itr);
1511 dev_dbg(ctx->dev, "SUM 0x%x\n", sum_cal_itr);
1512 ++avg_loop;
1513 } else {
1514 dev_err(ctx->dev,
1515 "Receiver calibration failed at %d loop\n",
1516 avg_loop);
1517 }
1518 xgene_phy_reset_rxd(ctx, lane);
1519 }
1520
1521 /* Update latch manual calibration with average value */
1522 serdes_rd(ctx, lane, RXTX_REG127, &val);
1523 val = RXTX_REG127_DO_LATCH_MANCAL_SET(val,
1524 xgene_phy_get_avg(lat_do, max_loop));
1525 val = RXTX_REG127_XO_LATCH_MANCAL_SET(val,
1526 xgene_phy_get_avg(lat_xo, max_loop));
1527 serdes_wr(ctx, lane, RXTX_REG127, val);
1528
1529 serdes_rd(ctx, lane, RXTX_REG128, &val);
1530 val = RXTX_REG128_EO_LATCH_MANCAL_SET(val,
1531 xgene_phy_get_avg(lat_eo, max_loop));
1532 val = RXTX_REG128_SO_LATCH_MANCAL_SET(val,
1533 xgene_phy_get_avg(lat_so, max_loop));
1534 serdes_wr(ctx, lane, RXTX_REG128, val);
1535
1536 serdes_rd(ctx, lane, RXTX_REG129, &val);
1537 val = RXTX_REG129_DE_LATCH_MANCAL_SET(val,
1538 xgene_phy_get_avg(lat_de, max_loop));
1539 val = RXTX_REG129_XE_LATCH_MANCAL_SET(val,
1540 xgene_phy_get_avg(lat_xe, max_loop));
1541 serdes_wr(ctx, lane, RXTX_REG129, val);
1542
1543 serdes_rd(ctx, lane, RXTX_REG130, &val);
1544 val = RXTX_REG130_EE_LATCH_MANCAL_SET(val,
1545 xgene_phy_get_avg(lat_ee, max_loop));
1546 val = RXTX_REG130_SE_LATCH_MANCAL_SET(val,
1547 xgene_phy_get_avg(lat_se, max_loop));
1548 serdes_wr(ctx, lane, RXTX_REG130, val);
1549
1550 /* Update SUMMER calibration with average value */
1551 serdes_rd(ctx, lane, RXTX_REG14, &val);
1552 val = RXTX_REG14_CLTE_LATCAL_MAN_PROG_SET(val,
1553 xgene_phy_get_avg(sum_cal, max_loop));
1554 serdes_wr(ctx, lane, RXTX_REG14, val);
1555
1556 dev_dbg(ctx->dev, "Average Value:\n");
1557 dev_dbg(ctx->dev, "DO 0x%x XO 0x%x EO 0x%x SO 0x%x\n",
1558 xgene_phy_get_avg(lat_do, max_loop),
1559 xgene_phy_get_avg(lat_xo, max_loop),
1560 xgene_phy_get_avg(lat_eo, max_loop),
1561 xgene_phy_get_avg(lat_so, max_loop));
1562 dev_dbg(ctx->dev, "DE 0x%x XE 0x%x EE 0x%x SE 0x%x\n",
1563 xgene_phy_get_avg(lat_de, max_loop),
1564 xgene_phy_get_avg(lat_xe, max_loop),
1565 xgene_phy_get_avg(lat_ee, max_loop),
1566 xgene_phy_get_avg(lat_se, max_loop));
1567 dev_dbg(ctx->dev, "SUM 0x%x\n",
1568 xgene_phy_get_avg(sum_cal, max_loop));
1569
1570 serdes_rd(ctx, lane, RXTX_REG14, &val);
1571 val = RXTX_REG14_CTLE_LATCAL_MAN_ENA_SET(val, 0x1);
1572 serdes_wr(ctx, lane, RXTX_REG14, val);
1573 dev_dbg(ctx->dev, "Enable Manual Summer calibration\n");
1574
1575 serdes_rd(ctx, lane, RXTX_REG127, &val);
1576 val = RXTX_REG127_LATCH_MAN_CAL_ENA_SET(val, 0x1);
1577 dev_dbg(ctx->dev, "Enable Manual Latch calibration\n");
1578 serdes_wr(ctx, lane, RXTX_REG127, val);
1579
1580 /* Disable RX Hi-Z termination */
1581 serdes_rd(ctx, lane, RXTX_REG12, &val);
1582 val = RXTX_REG12_RX_DET_TERM_ENABLE_SET(val, 0);
1583 serdes_wr(ctx, lane, RXTX_REG12, val);
1584 /* Turn on DFE */
1585 serdes_wr(ctx, lane, RXTX_REG28, 0x0007);
1586 /* Set DFE preset */
1587 serdes_wr(ctx, lane, RXTX_REG31, 0x7e00);
1588}
1589
1590static int xgene_phy_hw_init(struct phy *phy)
1591{
1592 struct xgene_phy_ctx *ctx = phy_get_drvdata(phy);
1593 int rc;
1594 int i;
1595
1596 rc = xgene_phy_hw_initialize(ctx, CLK_EXT_DIFF, SSC_DISABLE);
1597 if (rc) {
1598 dev_err(ctx->dev, "PHY initialize failed %d\n", rc);
1599 return rc;
1600 }
1601
1602 /* Setup clock properly after PHY configuration */
1603 if (!IS_ERR(ctx->clk)) {
1604 /* HW requires an toggle of the clock */
1605 clk_prepare_enable(ctx->clk);
1606 clk_disable_unprepare(ctx->clk);
1607 clk_prepare_enable(ctx->clk);
1608 }
1609
1610 /* Compute average value */
1611 for (i = 0; i < MAX_LANE; i++)
1612 xgene_phy_gen_avg_val(ctx, i);
1613
1614 dev_dbg(ctx->dev, "PHY initialized\n");
1615 return 0;
1616}
1617
1618static const struct phy_ops xgene_phy_ops = {
1619 .init = xgene_phy_hw_init,
1620 .owner = THIS_MODULE,
1621};
1622
1623static struct phy *xgene_phy_xlate(struct device *dev,
1624 struct of_phandle_args *args)
1625{
1626 struct xgene_phy_ctx *ctx = dev_get_drvdata(dev);
1627
1628 if (args->args_count <= 0)
1629 return ERR_PTR(-EINVAL);
1630 if (args->args[0] < MODE_SATA || args->args[0] >= MODE_MAX)
1631 return ERR_PTR(-EINVAL);
1632
1633 ctx->mode = args->args[0];
1634 return ctx->phy;
1635}
1636
1637static void xgene_phy_get_param(struct platform_device *pdev,
1638 const char *name, u32 *buffer,
1639 int count, u32 *default_val,
1640 u32 conv_factor)
1641{
1642 int i;
1643
1644 if (!of_property_read_u32_array(pdev->dev.of_node, name, buffer,
1645 count)) {
1646 for (i = 0; i < count; i++)
1647 buffer[i] /= conv_factor;
1648 return;
1649 }
1650 /* Does not exist, load default */
1651 for (i = 0; i < count; i++)
1652 buffer[i] = default_val[i % 3];
1653}
1654
1655static int xgene_phy_probe(struct platform_device *pdev)
1656{
1657 struct phy_provider *phy_provider;
1658 struct xgene_phy_ctx *ctx;
1659 struct resource *res;
1660 int rc = 0;
1661 u32 default_spd[] = DEFAULT_SATA_SPD_SEL;
1662 u32 default_txboost_gain[] = DEFAULT_SATA_TXBOOST_GAIN;
1663 u32 default_txeye_direction[] = DEFAULT_SATA_TXEYEDIRECTION;
1664 u32 default_txeye_tuning[] = DEFAULT_SATA_TXEYETUNING;
1665 u32 default_txamp[] = DEFAULT_SATA_TXAMP;
1666 u32 default_txcn1[] = DEFAULT_SATA_TXCN1;
1667 u32 default_txcn2[] = DEFAULT_SATA_TXCN2;
1668 u32 default_txcp1[] = DEFAULT_SATA_TXCP1;
1669 int i;
1670
1671 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
1672 if (!ctx)
1673 return -ENOMEM;
1674
1675 ctx->dev = &pdev->dev;
1676
1677 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1678 ctx->sds_base = devm_ioremap_resource(&pdev->dev, res);
1679 if (IS_ERR(ctx->sds_base)) {
1680 rc = PTR_ERR(ctx->sds_base);
1681 goto error;
1682 }
1683
1684 /* Retrieve optional clock */
1685 ctx->clk = clk_get(&pdev->dev, NULL);
1686
1687 /* Load override paramaters */
1688 xgene_phy_get_param(pdev, "apm,tx-eye-tuning",
1689 ctx->sata_param.txeyetuning, 6, default_txeye_tuning, 1);
1690 xgene_phy_get_param(pdev, "apm,tx-eye-direction",
1691 ctx->sata_param.txeyedirection, 6, default_txeye_direction, 1);
1692 xgene_phy_get_param(pdev, "apm,tx-boost-gain",
1693 ctx->sata_param.txboostgain, 6, default_txboost_gain, 1);
1694 xgene_phy_get_param(pdev, "apm,tx-amplitude",
1695 ctx->sata_param.txamplitude, 6, default_txamp, 13300);
1696 xgene_phy_get_param(pdev, "apm,tx-pre-cursor1",
1697 ctx->sata_param.txprecursor_cn1, 6, default_txcn1, 18200);
1698 xgene_phy_get_param(pdev, "apm,tx-pre-cursor2",
1699 ctx->sata_param.txprecursor_cn2, 6, default_txcn2, 18200);
1700 xgene_phy_get_param(pdev, "apm,tx-post-cursor",
1701 ctx->sata_param.txpostcursor_cp1, 6, default_txcp1, 18200);
1702 xgene_phy_get_param(pdev, "apm,tx-speed",
1703 ctx->sata_param.txspeed, 3, default_spd, 1);
1704 for (i = 0; i < MAX_LANE; i++)
1705 ctx->sata_param.speed[i] = 2; /* Default to Gen3 */
1706
1707 ctx->dev = &pdev->dev;
1708 platform_set_drvdata(pdev, ctx);
1709
1710 ctx->phy = devm_phy_create(ctx->dev, &xgene_phy_ops, NULL);
1711 if (IS_ERR(ctx->phy)) {
1712 dev_dbg(&pdev->dev, "Failed to create PHY\n");
1713 rc = PTR_ERR(ctx->phy);
1714 goto error;
1715 }
1716 phy_set_drvdata(ctx->phy, ctx);
1717
1718 phy_provider = devm_of_phy_provider_register(ctx->dev,
1719 xgene_phy_xlate);
1720 if (IS_ERR(phy_provider)) {
1721 rc = PTR_ERR(phy_provider);
1722 goto error;
1723 }
1724
1725 return 0;
1726
1727error:
1728 return rc;
1729}
1730
1731static const struct of_device_id xgene_phy_of_match[] = {
1732 {.compatible = "apm,xgene-phy",},
1733 {},
1734};
1735MODULE_DEVICE_TABLE(of, xgene_phy_of_match);
1736
1737static struct platform_driver xgene_phy_driver = {
1738 .probe = xgene_phy_probe,
1739 .driver = {
1740 .name = "xgene-phy",
1741 .owner = THIS_MODULE,
1742 .of_match_table = xgene_phy_of_match,
1743 },
1744};
1745module_platform_driver(xgene_phy_driver);
1746
1747MODULE_DESCRIPTION("APM X-Gene Multi-Purpose PHY driver");
1748MODULE_AUTHOR("Loc Ho <lho@apm.com>");
1749MODULE_LICENSE("GPL v2");
1750MODULE_VERSION("0.1");
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 8aa59a2c5eb2..d341c149a2f9 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -37,7 +37,7 @@
37#include <linux/err.h> 37#include <linux/err.h>
38#include <linux/delay.h> 38#include <linux/delay.h>
39#include <linux/usb/musb-omap.h> 39#include <linux/usb/musb-omap.h>
40#include <linux/usb/omap_control_usb.h> 40#include <linux/phy/omap_control_phy.h>
41#include <linux/of_platform.h> 41#include <linux/of_platform.h>
42 42
43#include "musb_core.h" 43#include "musb_core.h"
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 7d1451d5bbea..416e0c8cf6ff 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -75,27 +75,6 @@ config NOP_USB_XCEIV
75 built-in with usb ip or which are autonomous and doesn't require any 75 built-in with usb ip or which are autonomous and doesn't require any
76 phy programming such as ISP1x04 etc. 76 phy programming such as ISP1x04 etc.
77 77
78config OMAP_CONTROL_USB
79 tristate "OMAP CONTROL USB Driver"
80 depends on ARCH_OMAP2PLUS || COMPILE_TEST
81 help
82 Enable this to add support for the USB part present in the control
83 module. This driver has API to power on the USB2 PHY and to write to
84 the mailbox. The mailbox is present only in omap4 and the register to
85 power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an
86 additional register to power on USB3 PHY.
87
88config OMAP_USB3
89 tristate "OMAP USB3 PHY Driver"
90 depends on ARCH_OMAP2PLUS || COMPILE_TEST
91 select OMAP_CONTROL_USB
92 select USB_PHY
93 help
94 Enable this to support the USB3 PHY that is part of SOC. This
95 driver takes care of all the PHY functionality apart from comparator.
96 This driver interacts with the "OMAP Control USB Driver" to power
97 on/off the PHY.
98
99config AM335X_CONTROL_USB 78config AM335X_CONTROL_USB
100 tristate 79 tristate
101 80
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index be58adae3496..f8fa719a31b9 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -13,11 +13,9 @@ obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301-omap.o
13obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o 13obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o
14obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o 14obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o
15obj-$(CONFIG_TAHVO_USB) += phy-tahvo.o 15obj-$(CONFIG_TAHVO_USB) += phy-tahvo.o
16obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o
17obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o 16obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o
18obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o 17obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o
19obj-$(CONFIG_OMAP_OTG) += phy-omap-otg.o 18obj-$(CONFIG_OMAP_OTG) += phy-omap-otg.o
20obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o
21obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o 19obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o
22obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o 20obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o
23obj-$(CONFIG_SAMSUNG_USB3PHY) += phy-samsung-usb3.o 21obj-$(CONFIG_SAMSUNG_USB3PHY) += phy-samsung-usb3.o
diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c
deleted file mode 100644
index 0c6ba29bdddd..000000000000
--- a/drivers/usb/phy/phy-omap-usb3.c
+++ /dev/null
@@ -1,361 +0,0 @@
1/*
2 * omap-usb3 - USB PHY, talking to dwc3 controller in OMAP.
3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * Author: Kishon Vijay Abraham I <kishon@ti.com>
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#include <linux/module.h>
20#include <linux/platform_device.h>
21#include <linux/slab.h>
22#include <linux/usb/omap_usb.h>
23#include <linux/of.h>
24#include <linux/clk.h>
25#include <linux/err.h>
26#include <linux/pm_runtime.h>
27#include <linux/delay.h>
28#include <linux/usb/omap_control_usb.h>
29#include <linux/of_platform.h>
30
31#define PLL_STATUS 0x00000004
32#define PLL_GO 0x00000008
33#define PLL_CONFIGURATION1 0x0000000C
34#define PLL_CONFIGURATION2 0x00000010
35#define PLL_CONFIGURATION3 0x00000014
36#define PLL_CONFIGURATION4 0x00000020
37
38#define PLL_REGM_MASK 0x001FFE00
39#define PLL_REGM_SHIFT 0x9
40#define PLL_REGM_F_MASK 0x0003FFFF
41#define PLL_REGM_F_SHIFT 0x0
42#define PLL_REGN_MASK 0x000001FE
43#define PLL_REGN_SHIFT 0x1
44#define PLL_SELFREQDCO_MASK 0x0000000E
45#define PLL_SELFREQDCO_SHIFT 0x1
46#define PLL_SD_MASK 0x0003FC00
47#define PLL_SD_SHIFT 0x9
48#define SET_PLL_GO 0x1
49#define PLL_TICOPWDN 0x10000
50#define PLL_LOCK 0x2
51#define PLL_IDLE 0x1
52
53/*
54 * This is an Empirical value that works, need to confirm the actual
55 * value required for the USB3PHY_PLL_CONFIGURATION2.PLL_IDLE status
56 * to be correctly reflected in the USB3PHY_PLL_STATUS register.
57 */
58# define PLL_IDLE_TIME 100;
59
60struct usb_dpll_map {
61 unsigned long rate;
62 struct usb_dpll_params params;
63};
64
65static struct usb_dpll_map dpll_map[] = {
66 {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
67 {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
68 {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
69 {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */
70 {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */
71 {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
72};
73
74static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate)
75{
76 int i;
77
78 for (i = 0; i < ARRAY_SIZE(dpll_map); i++) {
79 if (rate == dpll_map[i].rate)
80 return &dpll_map[i].params;
81 }
82
83 return NULL;
84}
85
86static int omap_usb3_suspend(struct usb_phy *x, int suspend)
87{
88 struct omap_usb *phy = phy_to_omapusb(x);
89 int val;
90 int timeout = PLL_IDLE_TIME;
91
92 if (suspend && !phy->is_suspended) {
93 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
94 val |= PLL_IDLE;
95 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
96
97 do {
98 val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
99 if (val & PLL_TICOPWDN)
100 break;
101 udelay(1);
102 } while (--timeout);
103
104 omap_control_usb_phy_power(phy->control_dev, 0);
105
106 phy->is_suspended = 1;
107 } else if (!suspend && phy->is_suspended) {
108 phy->is_suspended = 0;
109
110 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
111 val &= ~PLL_IDLE;
112 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
113
114 do {
115 val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
116 if (!(val & PLL_TICOPWDN))
117 break;
118 udelay(1);
119 } while (--timeout);
120 }
121
122 return 0;
123}
124
125static void omap_usb_dpll_relock(struct omap_usb *phy)
126{
127 u32 val;
128 unsigned long timeout;
129
130 omap_usb_writel(phy->pll_ctrl_base, PLL_GO, SET_PLL_GO);
131
132 timeout = jiffies + msecs_to_jiffies(20);
133 do {
134 val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
135 if (val & PLL_LOCK)
136 break;
137 } while (!WARN_ON(time_after(jiffies, timeout)));
138}
139
140static int omap_usb_dpll_lock(struct omap_usb *phy)
141{
142 u32 val;
143 unsigned long rate;
144 struct usb_dpll_params *dpll_params;
145
146 rate = clk_get_rate(phy->sys_clk);
147 dpll_params = omap_usb3_get_dpll_params(rate);
148 if (!dpll_params) {
149 dev_err(phy->dev,
150 "No DPLL configuration for %lu Hz SYS CLK\n", rate);
151 return -EINVAL;
152 }
153
154 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
155 val &= ~PLL_REGN_MASK;
156 val |= dpll_params->n << PLL_REGN_SHIFT;
157 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
158
159 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
160 val &= ~PLL_SELFREQDCO_MASK;
161 val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
162 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
163
164 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
165 val &= ~PLL_REGM_MASK;
166 val |= dpll_params->m << PLL_REGM_SHIFT;
167 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
168
169 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4);
170 val &= ~PLL_REGM_F_MASK;
171 val |= dpll_params->mf << PLL_REGM_F_SHIFT;
172 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val);
173
174 val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3);
175 val &= ~PLL_SD_MASK;
176 val |= dpll_params->sd << PLL_SD_SHIFT;
177 omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val);
178
179 omap_usb_dpll_relock(phy);
180
181 return 0;
182}
183
184static int omap_usb3_init(struct usb_phy *x)
185{
186 struct omap_usb *phy = phy_to_omapusb(x);
187 int ret;
188
189 ret = omap_usb_dpll_lock(phy);
190 if (ret)
191 return ret;
192
193 omap_control_usb_phy_power(phy->control_dev, 1);
194
195 return 0;
196}
197
198static int omap_usb3_probe(struct platform_device *pdev)
199{
200 struct omap_usb *phy;
201 struct resource *res;
202 struct device_node *node = pdev->dev.of_node;
203 struct device_node *control_node;
204 struct platform_device *control_pdev;
205
206 if (!node)
207 return -EINVAL;
208
209 phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
210 if (!phy) {
211 dev_err(&pdev->dev, "unable to alloc mem for OMAP USB3 PHY\n");
212 return -ENOMEM;
213 }
214
215 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pll_ctrl");
216 phy->pll_ctrl_base = devm_ioremap_resource(&pdev->dev, res);
217 if (IS_ERR(phy->pll_ctrl_base))
218 return PTR_ERR(phy->pll_ctrl_base);
219
220 phy->dev = &pdev->dev;
221
222 phy->phy.dev = phy->dev;
223 phy->phy.label = "omap-usb3";
224 phy->phy.init = omap_usb3_init;
225 phy->phy.set_suspend = omap_usb3_suspend;
226 phy->phy.type = USB_PHY_TYPE_USB3;
227
228 phy->is_suspended = 1;
229 phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
230 if (IS_ERR(phy->wkupclk)) {
231 dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
232 return PTR_ERR(phy->wkupclk);
233 }
234 clk_prepare(phy->wkupclk);
235
236 phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
237 if (IS_ERR(phy->optclk)) {
238 dev_err(&pdev->dev, "unable to get usb_otg_ss_refclk960m\n");
239 return PTR_ERR(phy->optclk);
240 }
241 clk_prepare(phy->optclk);
242
243 phy->sys_clk = devm_clk_get(phy->dev, "sys_clkin");
244 if (IS_ERR(phy->sys_clk)) {
245 pr_err("%s: unable to get sys_clkin\n", __func__);
246 return -EINVAL;
247 }
248
249 control_node = of_parse_phandle(node, "ctrl-module", 0);
250 if (!control_node) {
251 dev_err(&pdev->dev, "Failed to get control device phandle\n");
252 return -EINVAL;
253 }
254 control_pdev = of_find_device_by_node(control_node);
255 if (!control_pdev) {
256 dev_err(&pdev->dev, "Failed to get control device\n");
257 return -EINVAL;
258 }
259
260 phy->control_dev = &control_pdev->dev;
261
262 omap_control_usb_phy_power(phy->control_dev, 0);
263 usb_add_phy_dev(&phy->phy);
264
265 platform_set_drvdata(pdev, phy);
266
267 pm_runtime_enable(phy->dev);
268 pm_runtime_get(&pdev->dev);
269
270 return 0;
271}
272
273static int omap_usb3_remove(struct platform_device *pdev)
274{
275 struct omap_usb *phy = platform_get_drvdata(pdev);
276
277 clk_unprepare(phy->wkupclk);
278 clk_unprepare(phy->optclk);
279 usb_remove_phy(&phy->phy);
280 if (!pm_runtime_suspended(&pdev->dev))
281 pm_runtime_put(&pdev->dev);
282 pm_runtime_disable(&pdev->dev);
283
284 return 0;
285}
286
287#ifdef CONFIG_PM_RUNTIME
288
289static int omap_usb3_runtime_suspend(struct device *dev)
290{
291 struct platform_device *pdev = to_platform_device(dev);
292 struct omap_usb *phy = platform_get_drvdata(pdev);
293
294 clk_disable(phy->wkupclk);
295 clk_disable(phy->optclk);
296
297 return 0;
298}
299
300static int omap_usb3_runtime_resume(struct device *dev)
301{
302 u32 ret = 0;
303 struct platform_device *pdev = to_platform_device(dev);
304 struct omap_usb *phy = platform_get_drvdata(pdev);
305
306 ret = clk_enable(phy->optclk);
307 if (ret) {
308 dev_err(phy->dev, "Failed to enable optclk %d\n", ret);
309 goto err1;
310 }
311
312 ret = clk_enable(phy->wkupclk);
313 if (ret) {
314 dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
315 goto err2;
316 }
317
318 return 0;
319
320err2:
321 clk_disable(phy->optclk);
322
323err1:
324 return ret;
325}
326
327static const struct dev_pm_ops omap_usb3_pm_ops = {
328 SET_RUNTIME_PM_OPS(omap_usb3_runtime_suspend, omap_usb3_runtime_resume,
329 NULL)
330};
331
332#define DEV_PM_OPS (&omap_usb3_pm_ops)
333#else
334#define DEV_PM_OPS NULL
335#endif
336
337#ifdef CONFIG_OF
338static const struct of_device_id omap_usb3_id_table[] = {
339 { .compatible = "ti,omap-usb3" },
340 {}
341};
342MODULE_DEVICE_TABLE(of, omap_usb3_id_table);
343#endif
344
345static struct platform_driver omap_usb3_driver = {
346 .probe = omap_usb3_probe,
347 .remove = omap_usb3_remove,
348 .driver = {
349 .name = "omap-usb3",
350 .owner = THIS_MODULE,
351 .pm = DEV_PM_OPS,
352 .of_match_table = of_match_ptr(omap_usb3_id_table),
353 },
354};
355
356module_platform_driver(omap_usb3_driver);
357
358MODULE_ALIAS("platform: omap_usb3");
359MODULE_AUTHOR("Texas Instruments Inc.");
360MODULE_DESCRIPTION("OMAP USB3 phy driver");
361MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index 214172b68d5d..04778cf80d60 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -27,7 +27,7 @@
27#include <linux/io.h> 27#include <linux/io.h>
28#include <linux/usb/musb-omap.h> 28#include <linux/usb/musb-omap.h>
29#include <linux/usb/phy_companion.h> 29#include <linux/usb/phy_companion.h>
30#include <linux/usb/omap_usb.h> 30#include <linux/phy/omap_usb.h>
31#include <linux/i2c/twl.h> 31#include <linux/i2c/twl.h>
32#include <linux/regulator/consumer.h> 32#include <linux/regulator/consumer.h>
33#include <linux/err.h> 33#include <linux/err.h>
diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/phy/omap_control_phy.h
index 69ae383ee3cc..5450403c7546 100644
--- a/include/linux/usb/omap_control_usb.h
+++ b/include/linux/phy/omap_control_phy.h
@@ -1,5 +1,5 @@
1/* 1/*
2 * omap_control_usb.h - Header file for the USB part of control module. 2 * omap_control_phy.h - Header file for the PHY part of control module.
3 * 3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com 4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
5 * This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
@@ -16,10 +16,10 @@
16 * 16 *
17 */ 17 */
18 18
19#ifndef __OMAP_CONTROL_USB_H__ 19#ifndef __OMAP_CONTROL_PHY_H__
20#define __OMAP_CONTROL_USB_H__ 20#define __OMAP_CONTROL_PHY_H__
21 21
22enum omap_control_usb_type { 22enum omap_control_phy_type {
23 OMAP_CTRL_TYPE_OTGHS = 1, /* Mailbox OTGHS_CONTROL */ 23 OMAP_CTRL_TYPE_OTGHS = 1, /* Mailbox OTGHS_CONTROL */
24 OMAP_CTRL_TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */ 24 OMAP_CTRL_TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */
25 OMAP_CTRL_TYPE_PIPE3, /* PIPE3 PHY, DPLL & seperate Rx/Tx power */ 25 OMAP_CTRL_TYPE_PIPE3, /* PIPE3 PHY, DPLL & seperate Rx/Tx power */
@@ -27,7 +27,7 @@ enum omap_control_usb_type {
27 OMAP_CTRL_TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */ 27 OMAP_CTRL_TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */
28}; 28};
29 29
30struct omap_control_usb { 30struct omap_control_phy {
31 struct device *dev; 31 struct device *dev;
32 32
33 u32 __iomem *otghs_control; 33 u32 __iomem *otghs_control;
@@ -36,7 +36,7 @@ struct omap_control_usb {
36 36
37 struct clk *sys_clk; 37 struct clk *sys_clk;
38 38
39 enum omap_control_usb_type type; 39 enum omap_control_phy_type type;
40}; 40};
41 41
42enum omap_control_usb_mode { 42enum omap_control_usb_mode {
@@ -54,14 +54,14 @@ enum omap_control_usb_mode {
54#define OMAP_CTRL_DEV_SESSEND BIT(3) 54#define OMAP_CTRL_DEV_SESSEND BIT(3)
55#define OMAP_CTRL_DEV_IDDIG BIT(4) 55#define OMAP_CTRL_DEV_IDDIG BIT(4)
56 56
57#define OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK 0x003FC000 57#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK 0x003FC000
58#define OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT 0xE 58#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 0xE
59 59
60#define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK 0xFFC00000 60#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK 0xFFC00000
61#define OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT 0x16 61#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 0x16
62 62
63#define OMAP_CTRL_USB3_PHY_TX_RX_POWERON 0x3 63#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON 0x3
64#define OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF 0x0 64#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF 0x0
65 65
66#define OMAP_CTRL_USB2_PHY_PD BIT(28) 66#define OMAP_CTRL_USB2_PHY_PD BIT(28)
67 67
@@ -70,13 +70,13 @@ enum omap_control_usb_mode {
70#define AM437X_CTRL_USB2_OTGVDET_EN BIT(19) 70#define AM437X_CTRL_USB2_OTGVDET_EN BIT(19)
71#define AM437X_CTRL_USB2_OTGSESSEND_EN BIT(20) 71#define AM437X_CTRL_USB2_OTGSESSEND_EN BIT(20)
72 72
73#if IS_ENABLED(CONFIG_OMAP_CONTROL_USB) 73#if IS_ENABLED(CONFIG_OMAP_CONTROL_PHY)
74extern void omap_control_usb_phy_power(struct device *dev, int on); 74void omap_control_phy_power(struct device *dev, int on);
75extern void omap_control_usb_set_mode(struct device *dev, 75void omap_control_usb_set_mode(struct device *dev,
76 enum omap_control_usb_mode mode); 76 enum omap_control_usb_mode mode);
77#else 77#else
78 78
79static inline void omap_control_usb_phy_power(struct device *dev, int on) 79static inline void omap_control_phy_power(struct device *dev, int on)
80{ 80{
81} 81}
82 82
@@ -86,4 +86,4 @@ static inline void omap_control_usb_set_mode(struct device *dev,
86} 86}
87#endif 87#endif
88 88
89#endif /* __OMAP_CONTROL_USB_H__ */ 89#endif /* __OMAP_CONTROL_PHY_H__ */
diff --git a/include/linux/usb/omap_usb.h b/include/linux/phy/omap_usb.h
index 6ae29360e1d2..dc2c541a619b 100644
--- a/include/linux/usb/omap_usb.h
+++ b/include/linux/phy/omap_usb.h
@@ -34,14 +34,24 @@ struct omap_usb {
34 struct usb_phy phy; 34 struct usb_phy phy;
35 struct phy_companion *comparator; 35 struct phy_companion *comparator;
36 void __iomem *pll_ctrl_base; 36 void __iomem *pll_ctrl_base;
37 void __iomem *phy_base;
37 struct device *dev; 38 struct device *dev;
38 struct device *control_dev; 39 struct device *control_dev;
39 struct clk *wkupclk; 40 struct clk *wkupclk;
40 struct clk *sys_clk;
41 struct clk *optclk; 41 struct clk *optclk;
42 u8 is_suspended:1; 42 u8 flags;
43}; 43};
44 44
45struct usb_phy_data {
46 const char *label;
47 u8 flags;
48};
49
50/* Driver Flags */
51#define OMAP_USB2_HAS_START_SRP (1 << 0)
52#define OMAP_USB2_HAS_SET_VBUS (1 << 1)
53#define OMAP_USB2_CALIBRATE_FALSE_DISCONNECT (1 << 2)
54
45#define phy_to_omapusb(x) container_of((x), struct omap_usb, phy) 55#define phy_to_omapusb(x) container_of((x), struct omap_usb, phy)
46 56
47#if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE) 57#if defined(CONFIG_OMAP_USB2) || defined(CONFIG_OMAP_USB2_MODULE)
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 3f83459dbb20..e2f5ca96cddc 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -149,8 +149,11 @@ struct phy *phy_get(struct device *dev, const char *string);
149struct phy *phy_optional_get(struct device *dev, const char *string); 149struct phy *phy_optional_get(struct device *dev, const char *string);
150struct phy *devm_phy_get(struct device *dev, const char *string); 150struct phy *devm_phy_get(struct device *dev, const char *string);
151struct phy *devm_phy_optional_get(struct device *dev, const char *string); 151struct phy *devm_phy_optional_get(struct device *dev, const char *string);
152struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
153 const char *con_id);
152void phy_put(struct phy *phy); 154void phy_put(struct phy *phy);
153void devm_phy_put(struct device *dev, struct phy *phy); 155void devm_phy_put(struct device *dev, struct phy *phy);
156struct phy *of_phy_get(struct device_node *np, const char *con_id);
154struct phy *of_phy_simple_xlate(struct device *dev, 157struct phy *of_phy_simple_xlate(struct device *dev,
155 struct of_phandle_args *args); 158 struct of_phandle_args *args);
156struct phy *phy_create(struct device *dev, const struct phy_ops *ops, 159struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
@@ -251,6 +254,13 @@ static inline struct phy *devm_phy_optional_get(struct device *dev,
251 return ERR_PTR(-ENOSYS); 254 return ERR_PTR(-ENOSYS);
252} 255}
253 256
257static inline struct phy *devm_of_phy_get(struct device *dev,
258 struct device_node *np,
259 const char *con_id)
260{
261 return ERR_PTR(-ENOSYS);
262}
263
254static inline void phy_put(struct phy *phy) 264static inline void phy_put(struct phy *phy)
255{ 265{
256} 266}
@@ -259,6 +269,11 @@ static inline void devm_phy_put(struct device *dev, struct phy *phy)
259{ 269{
260} 270}
261 271
272static inline struct phy *of_phy_get(struct device_node *np, const char *con_id)
273{
274 return ERR_PTR(-ENOSYS);
275}
276
262static inline struct phy *of_phy_simple_xlate(struct device *dev, 277static inline struct phy *of_phy_simple_xlate(struct device *dev,
263 struct of_phandle_args *args) 278 struct of_phandle_args *args)
264{ 279{
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-17 08:47:46 -0500