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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2015-05-13 08:26:42 -0400
committerFelipe Balbi <balbi@ti.com>2015-05-13 13:04:55 -0400
commit289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f (patch)
tree7c5156a0a503fccc18a449de06edda6c07060160 /include/linux/usb
parent3521a399dae8d66fc784cef70a78e65ce73e364f (diff)
usb: add bus type for USB ULPI
UTMI+ Low Pin Interface (ULPI) is a commonly used PHY interface for USB 2.0. The ULPI specification describes a standard set of registers which the vendors can extend for their specific needs. ULPI PHYs provide often functions such as charger detection and ADP sensing and probing. There are two major issues that the bus type is meant to tackle: Firstly, ULPI registers are accessed from the controller. The bus provides convenient method for the controller drivers to share that access with the actual PHY drivers. Secondly, there are already platforms that assume ULPI PHYs are runtime detected, such as many Intel Baytrail based platforms. They do not provide any kind of hardware description for the ULPI PHYs like separate ACPI device object that could be used to enumerate a device from. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/ulpi.h134
1 files changed, 2 insertions, 132 deletions
diff --git a/include/linux/usb/ulpi.h b/include/linux/usb/ulpi.h
index 5c295c26ad37..5f07407a367a 100644
--- a/include/linux/usb/ulpi.h
+++ b/include/linux/usb/ulpi.h
@@ -12,6 +12,8 @@
12#define __LINUX_USB_ULPI_H 12#define __LINUX_USB_ULPI_H
13 13
14#include <linux/usb/otg.h> 14#include <linux/usb/otg.h>
15#include <linux/ulpi/regs.h>
16
15/*-------------------------------------------------------------------------*/ 17/*-------------------------------------------------------------------------*/
16 18
17/* 19/*
@@ -49,138 +51,6 @@
49 51
50/*-------------------------------------------------------------------------*/ 52/*-------------------------------------------------------------------------*/
51 53
52/*
53 * Macros for Set and Clear
54 * See ULPI 1.1 specification to find the registers with Set and Clear offsets
55 */
56#define ULPI_SET(a) (a + 1)
57#define ULPI_CLR(a) (a + 2)
58
59/*-------------------------------------------------------------------------*/
60
61/*
62 * Register Map
63 */
64#define ULPI_VENDOR_ID_LOW 0x00
65#define ULPI_VENDOR_ID_HIGH 0x01
66#define ULPI_PRODUCT_ID_LOW 0x02
67#define ULPI_PRODUCT_ID_HIGH 0x03
68#define ULPI_FUNC_CTRL 0x04
69#define ULPI_IFC_CTRL 0x07
70#define ULPI_OTG_CTRL 0x0a
71#define ULPI_USB_INT_EN_RISE 0x0d
72#define ULPI_USB_INT_EN_FALL 0x10
73#define ULPI_USB_INT_STS 0x13
74#define ULPI_USB_INT_LATCH 0x14
75#define ULPI_DEBUG 0x15
76#define ULPI_SCRATCH 0x16
77/* Optional Carkit Registers */
78#define ULPI_CARCIT_CTRL 0x19
79#define ULPI_CARCIT_INT_DELAY 0x1c
80#define ULPI_CARCIT_INT_EN 0x1d
81#define ULPI_CARCIT_INT_STS 0x20
82#define ULPI_CARCIT_INT_LATCH 0x21
83#define ULPI_CARCIT_PLS_CTRL 0x22
84/* Other Optional Registers */
85#define ULPI_TX_POS_WIDTH 0x25
86#define ULPI_TX_NEG_WIDTH 0x26
87#define ULPI_POLARITY_RECOVERY 0x27
88/* Access Extended Register Set */
89#define ULPI_ACCESS_EXTENDED 0x2f
90/* Vendor Specific */
91#define ULPI_VENDOR_SPECIFIC 0x30
92/* Extended Registers */
93#define ULPI_EXT_VENDOR_SPECIFIC 0x80
94
95/*-------------------------------------------------------------------------*/
96
97/*
98 * Register Bits
99 */
100
101/* Function Control */
102#define ULPI_FUNC_CTRL_XCVRSEL (1 << 0)
103#define ULPI_FUNC_CTRL_XCVRSEL_MASK (3 << 0)
104#define ULPI_FUNC_CTRL_HIGH_SPEED (0 << 0)
105#define ULPI_FUNC_CTRL_FULL_SPEED (1 << 0)
106#define ULPI_FUNC_CTRL_LOW_SPEED (2 << 0)
107#define ULPI_FUNC_CTRL_FS4LS (3 << 0)
108#define ULPI_FUNC_CTRL_TERMSELECT (1 << 2)
109#define ULPI_FUNC_CTRL_OPMODE (1 << 3)
110#define ULPI_FUNC_CTRL_OPMODE_MASK (3 << 3)
111#define ULPI_FUNC_CTRL_OPMODE_NORMAL (0 << 3)
112#define ULPI_FUNC_CTRL_OPMODE_NONDRIVING (1 << 3)
113#define ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI (2 << 3)
114#define ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP (3 << 3)
115#define ULPI_FUNC_CTRL_RESET (1 << 5)
116#define ULPI_FUNC_CTRL_SUSPENDM (1 << 6)
117
118/* Interface Control */
119#define ULPI_IFC_CTRL_6_PIN_SERIAL_MODE (1 << 0)
120#define ULPI_IFC_CTRL_3_PIN_SERIAL_MODE (1 << 1)
121#define ULPI_IFC_CTRL_CARKITMODE (1 << 2)
122#define ULPI_IFC_CTRL_CLOCKSUSPENDM (1 << 3)
123#define ULPI_IFC_CTRL_AUTORESUME (1 << 4)
124#define ULPI_IFC_CTRL_EXTERNAL_VBUS (1 << 5)
125#define ULPI_IFC_CTRL_PASSTHRU (1 << 6)
126#define ULPI_IFC_CTRL_PROTECT_IFC_DISABLE (1 << 7)
127
128/* OTG Control */
129#define ULPI_OTG_CTRL_ID_PULLUP (1 << 0)
130#define ULPI_OTG_CTRL_DP_PULLDOWN (1 << 1)
131#define ULPI_OTG_CTRL_DM_PULLDOWN (1 << 2)
132#define ULPI_OTG_CTRL_DISCHRGVBUS (1 << 3)
133#define ULPI_OTG_CTRL_CHRGVBUS (1 << 4)
134#define ULPI_OTG_CTRL_DRVVBUS (1 << 5)
135#define ULPI_OTG_CTRL_DRVVBUS_EXT (1 << 6)
136#define ULPI_OTG_CTRL_EXTVBUSIND (1 << 7)
137
138/* USB Interrupt Enable Rising,
139 * USB Interrupt Enable Falling,
140 * USB Interrupt Status and
141 * USB Interrupt Latch
142 */
143#define ULPI_INT_HOST_DISCONNECT (1 << 0)
144#define ULPI_INT_VBUS_VALID (1 << 1)
145#define ULPI_INT_SESS_VALID (1 << 2)
146#define ULPI_INT_SESS_END (1 << 3)
147#define ULPI_INT_IDGRD (1 << 4)
148
149/* Debug */
150#define ULPI_DEBUG_LINESTATE0 (1 << 0)
151#define ULPI_DEBUG_LINESTATE1 (1 << 1)
152
153/* Carkit Control */
154#define ULPI_CARKIT_CTRL_CARKITPWR (1 << 0)
155#define ULPI_CARKIT_CTRL_IDGNDDRV (1 << 1)
156#define ULPI_CARKIT_CTRL_TXDEN (1 << 2)
157#define ULPI_CARKIT_CTRL_RXDEN (1 << 3)
158#define ULPI_CARKIT_CTRL_SPKLEFTEN (1 << 4)
159#define ULPI_CARKIT_CTRL_SPKRIGHTEN (1 << 5)
160#define ULPI_CARKIT_CTRL_MICEN (1 << 6)
161
162/* Carkit Interrupt Enable */
163#define ULPI_CARKIT_INT_EN_IDFLOAT_RISE (1 << 0)
164#define ULPI_CARKIT_INT_EN_IDFLOAT_FALL (1 << 1)
165#define ULPI_CARKIT_INT_EN_CARINTDET (1 << 2)
166#define ULPI_CARKIT_INT_EN_DP_RISE (1 << 3)
167#define ULPI_CARKIT_INT_EN_DP_FALL (1 << 4)
168
169/* Carkit Interrupt Status and
170 * Carkit Interrupt Latch
171 */
172#define ULPI_CARKIT_INT_IDFLOAT (1 << 0)
173#define ULPI_CARKIT_INT_CARINTDET (1 << 1)
174#define ULPI_CARKIT_INT_DP (1 << 2)
175
176/* Carkit Pulse Control*/
177#define ULPI_CARKIT_PLS_CTRL_TXPLSEN (1 << 0)
178#define ULPI_CARKIT_PLS_CTRL_RXPLSEN (1 << 1)
179#define ULPI_CARKIT_PLS_CTRL_SPKRLEFT_BIASEN (1 << 2)
180#define ULPI_CARKIT_PLS_CTRL_SPKRRIGHT_BIASEN (1 << 3)
181
182/*-------------------------------------------------------------------------*/
183
184#if IS_ENABLED(CONFIG_USB_ULPI) 54#if IS_ENABLED(CONFIG_USB_ULPI)
185struct usb_phy *otg_ulpi_create(struct usb_phy_io_ops *ops, 55struct usb_phy *otg_ulpi_create(struct usb_phy_io_ops *ops,
186 unsigned int flags); 56 unsigned int flags);
generated by cgit v1.2.2 (git 2.25.0) at 2026-05-13 21:49:48 -0400