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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 19:14:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 19:14:44 -0400
commit281b05392fc2cb26209b4d85abaf4889ab1991f3 (patch)
treebbf5000ce7bd739b1ca85e9918741e285d267c7c /arch/arm/mach-s5pv210
parent48d554418d3bfbba5e9dc1ebdf352f1b1f3ff4ee (diff)
parentbde755679a3ba5af0d16231f8532e8373c5e2ecc (diff)
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: SoC specific updates" from Arnd Bergmann: "These changes are all specific to an soc family or the code for one soc. Lots of work for Tegra3 this time, but also a lot of other platforms. There will be another (smaller) set of soc patches later in the merge window for stuff that has dependencies on external trees or that was sent just before the merge window opened. The asoc tree added a few devices to the i.mx platform, which conflict with other devices added in the same place here. The tegra Makefile conflicts between a number of branches, mostly because of changes regarding localtimer.c, which was removed in the end. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fix up some trivial conflicts, including the mentioned Tegra Makefile. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: EXYNOS: fix cycle count for periodic mode of clock event timers ARM: EXYNOS: add support JPEG ARM: EXYNOS: Add DMC1, allow PPMU access for DMC ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata() ARM: SAMSUNG: Add __init attribute to samsung_bl_set() ARM: S5PV210: Add usb otg phy control ARM: S3C64XX: Add usb otg phy control ARM: EXYNOS: Enable l2 configuration through device tree ARM: EXYNOS: remove useless code to save/restore L2 ARM: EXYNOS: save L2 settings during bootup ARM: S5P: add L2 early resume code ARM: EXYNOS: Add support AFTR mode on EXYNOS4210 ARM: mx35: Setup the AIPS registers ARM: mx5: Use common function for configuring AIPS ARM: mx3: Setup AIPS registers ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE ARM: imx: update imx_v6_v7_defconfig ARM: tegra: Demote EMC clock inconsistency BUG to WARN ...
Diffstat (limited to 'arch/arm/mach-s5pv210')
-rw-r--r--arch/arm/mach-s5pv210/Kconfig6
-rw-r--r--arch/arm/mach-s5pv210/Makefile1
-rw-r--r--arch/arm/mach-s5pv210/include/mach/regs-sys.h4
-rw-r--r--arch/arm/mach-s5pv210/setup-usb-phy.c90
4 files changed, 97 insertions, 4 deletions
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 2cdc42e838b8..82525e3831e9 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -65,6 +65,11 @@ config S5PV210_SETUP_SPI
65 help 65 help
66 Common setup code for SPI GPIO configurations. 66 Common setup code for SPI GPIO configurations.
67 67
68config S5PV210_SETUP_USB_PHY
69 bool
70 help
71 Common setup code for USB PHY controller
72
68menu "S5PC110 Machines" 73menu "S5PC110 Machines"
69 74
70config MACH_AQUILA 75config MACH_AQUILA
@@ -107,6 +112,7 @@ config MACH_GONI
107 select S5PV210_SETUP_KEYPAD 112 select S5PV210_SETUP_KEYPAD
108 select S5PV210_SETUP_SDHCI 113 select S5PV210_SETUP_SDHCI
109 select S5PV210_SETUP_FIMC 114 select S5PV210_SETUP_FIMC
115 select S5PV210_SETUP_USB_PHY
110 help 116 help
111 Machine support for Samsung GONI board 117 Machine support for Samsung GONI board
112 S5PC110(MCP) is one of package option of S5PV210 118 S5PC110(MCP) is one of package option of S5PV210
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 76a121dd52b4..1c4e41998a10 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -39,3 +39,4 @@ obj-$(CONFIG_S5PV210_SETUP_IDE) += setup-ide.o
39obj-$(CONFIG_S5PV210_SETUP_KEYPAD) += setup-keypad.o 39obj-$(CONFIG_S5PV210_SETUP_KEYPAD) += setup-keypad.o
40obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o 40obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
41obj-$(CONFIG_S5PV210_SETUP_SPI) += setup-spi.o 41obj-$(CONFIG_S5PV210_SETUP_SPI) += setup-spi.o
42obj-$(CONFIG_S5PV210_SETUP_USB_PHY) += setup-usb-phy.o
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-sys.h b/arch/arm/mach-s5pv210/include/mach/regs-sys.h
index 26691d39d0f4..cccb1eddaa38 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-sys.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-sys.h
@@ -13,7 +13,3 @@
13#define S5PV210_USB_PHY_CON (S3C_VA_SYS + 0xE80C) 13#define S5PV210_USB_PHY_CON (S3C_VA_SYS + 0xE80C)
14#define S5PV210_USB_PHY0_EN (1 << 0) 14#define S5PV210_USB_PHY0_EN (1 << 0)
15#define S5PV210_USB_PHY1_EN (1 << 1) 15#define S5PV210_USB_PHY1_EN (1 << 1)
16
17/* compatibility defines for s3c-hsotg driver */
18#define S3C64XX_OTHERS S5PV210_USB_PHY_CON
19#define S3C64XX_OTHERS_USBMASK S5PV210_USB_PHY0_EN
diff --git a/arch/arm/mach-s5pv210/setup-usb-phy.c b/arch/arm/mach-s5pv210/setup-usb-phy.c
new file mode 100644
index 000000000000..be39cf4aa91b
--- /dev/null
+++ b/arch/arm/mach-s5pv210/setup-usb-phy.c
@@ -0,0 +1,90 @@
1/*
2 * Copyright (C) 2012 Samsung Electronics Co.Ltd
3 * Author: Joonyoung Shim <jy0922.shim@samsung.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundationr
8 */
9
10#include <linux/clk.h>
11#include <linux/delay.h>
12#include <linux/err.h>
13#include <linux/io.h>
14#include <linux/platform_device.h>
15#include <mach/map.h>
16#include <mach/regs-sys.h>
17#include <plat/cpu.h>
18#include <plat/regs-usb-hsotg-phy.h>
19#include <plat/usb-phy.h>
20
21static int s5pv210_usb_otgphy_init(struct platform_device *pdev)
22{
23 struct clk *xusbxti;
24 u32 phyclk;
25
26 writel(readl(S5PV210_USB_PHY_CON) | S5PV210_USB_PHY0_EN,
27 S5PV210_USB_PHY_CON);
28
29 /* set clock frequency for PLL */
30 phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK;
31
32 xusbxti = clk_get(&pdev->dev, "xusbxti");
33 if (xusbxti && !IS_ERR(xusbxti)) {
34 switch (clk_get_rate(xusbxti)) {
35 case 12 * MHZ:
36 phyclk |= S3C_PHYCLK_CLKSEL_12M;
37 break;
38 case 24 * MHZ:
39 phyclk |= S3C_PHYCLK_CLKSEL_24M;
40 break;
41 default:
42 case 48 * MHZ:
43 /* default reference clock */
44 break;
45 }
46 clk_put(xusbxti);
47 }
48
49 /* TODO: select external clock/oscillator */
50 writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK);
51
52 /* set to normal OTG PHY */
53 writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR);
54 mdelay(1);
55
56 /* reset OTG PHY and Link */
57 writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK,
58 S3C_RSTCON);
59 udelay(20); /* at-least 10uS */
60 writel(0, S3C_RSTCON);
61
62 return 0;
63}
64
65static int s5pv210_usb_otgphy_exit(struct platform_device *pdev)
66{
67 writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN |
68 S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR);
69
70 writel(readl(S5PV210_USB_PHY_CON) & ~S5PV210_USB_PHY0_EN,
71 S5PV210_USB_PHY_CON);
72
73 return 0;
74}
75
76int s5p_usb_phy_init(struct platform_device *pdev, int type)
77{
78 if (type == S5P_USB_PHY_DEVICE)
79 return s5pv210_usb_otgphy_init(pdev);
80
81 return -EINVAL;
82}
83
84int s5p_usb_phy_exit(struct platform_device *pdev, int type)
85{
86 if (type == S5P_USB_PHY_DEVICE)
87 return s5pv210_usb_otgphy_exit(pdev);
88
89 return -EINVAL;
90}