From 1a77920e4cbe508c8dc40fef1d0beb21aac8cc17 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 13 Apr 2009 15:34:54 +0800 Subject: [ARM] pxa: add I2C (TWSI) devices to pxa168/pxa910 Signed-off-by: Paul Shen Signed-off-by: Eric Miao --- arch/arm/mach-mmp/include/mach/mfp-pxa168.h | 4 ++++ arch/arm/mach-mmp/include/mach/pxa168.h | 24 ++++++++++++++++++++++++ arch/arm/mach-mmp/include/mach/pxa910.h | 24 ++++++++++++++++++++++++ arch/arm/mach-mmp/pxa168.c | 6 ++++++ arch/arm/mach-mmp/pxa910.c | 6 ++++++ 5 files changed, 64 insertions(+) (limited to 'arch/arm/mach-mmp') diff --git a/arch/arm/mach-mmp/include/mach/mfp-pxa168.h b/arch/arm/mach-mmp/include/mach/mfp-pxa168.h index 2e914649b9e..dc4226371d6 100644 --- a/arch/arm/mach-mmp/include/mach/mfp-pxa168.h +++ b/arch/arm/mach-mmp/include/mach/mfp-pxa168.h @@ -253,6 +253,10 @@ #define GPIO58_LCD_PCLK_WR MFP_CFG(GPIO58, AF1) #define GPIO85_LCD_VSYNC MFP_CFG(GPIO85, AF1) +/* I2C */ +#define GPIO105_CI2C_SDA MFP_CFG(GPIO105, AF1) +#define GPIO106_CI2C_SCL MFP_CFG(GPIO106, AF1) + /* I2S */ #define GPIO113_I2S_MCLK MFP_CFG(GPIO113,AF6) #define GPIO114_I2S_FRM MFP_CFG(GPIO114,AF1) diff --git a/arch/arm/mach-mmp/include/mach/pxa168.h b/arch/arm/mach-mmp/include/mach/pxa168.h index ef0a8a2076e..bfdd6299dff 100644 --- a/arch/arm/mach-mmp/include/mach/pxa168.h +++ b/arch/arm/mach-mmp/include/mach/pxa168.h @@ -1,10 +1,14 @@ #ifndef __ASM_MACH_PXA168_H #define __ASM_MACH_PXA168_H +#include #include +#include extern struct pxa_device_desc pxa168_device_uart1; extern struct pxa_device_desc pxa168_device_uart2; +extern struct pxa_device_desc pxa168_device_twsi0; +extern struct pxa_device_desc pxa168_device_twsi1; static inline int pxa168_add_uart(int id) { @@ -20,4 +24,24 @@ static inline int pxa168_add_uart(int id) return pxa_register_device(d, NULL, 0); } + +static inline int pxa168_add_twsi(int id, struct i2c_pxa_platform_data *data, + struct i2c_board_info *info, unsigned size) +{ + struct pxa_device_desc *d = NULL; + int ret; + + switch (id) { + case 0: d = &pxa168_device_twsi0; break; + case 1: d = &pxa168_device_twsi1; break; + default: + return -EINVAL; + } + + ret = i2c_register_board_info(id, info, size); + if (ret) + return ret; + + return pxa_register_device(d, data, sizeof(*data)); +} #endif /* __ASM_MACH_PXA168_H */ diff --git a/arch/arm/mach-mmp/include/mach/pxa910.h b/arch/arm/mach-mmp/include/mach/pxa910.h index b7aeaf574c3..a0f0cbee1c0 100644 --- a/arch/arm/mach-mmp/include/mach/pxa910.h +++ b/arch/arm/mach-mmp/include/mach/pxa910.h @@ -1,10 +1,14 @@ #ifndef __ASM_MACH_PXA910_H #define __ASM_MACH_PXA910_H +#include #include +#include extern struct pxa_device_desc pxa910_device_uart1; extern struct pxa_device_desc pxa910_device_uart2; +extern struct pxa_device_desc pxa910_device_twsi0; +extern struct pxa_device_desc pxa910_device_twsi1; static inline int pxa910_add_uart(int id) { @@ -20,4 +24,24 @@ static inline int pxa910_add_uart(int id) return pxa_register_device(d, NULL, 0); } + +static inline int pxa910_add_twsi(int id, struct i2c_pxa_platform_data *data, + struct i2c_board_info *info, unsigned size) +{ + struct pxa_device_desc *d = NULL; + int ret; + + switch (id) { + case 0: d = &pxa910_device_twsi0; break; + case 1: d = &pxa910_device_twsi1; break; + default: + return -EINVAL; + } + + ret = i2c_register_board_info(id, info, size); + if (ret) + return ret; + + return pxa_register_device(d, data, sizeof(*data)); +} #endif /* __ASM_MACH_PXA910_H */ diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c index ae924468658..e0729e34f7a 100644 --- a/arch/arm/mach-mmp/pxa168.c +++ b/arch/arm/mach-mmp/pxa168.c @@ -65,11 +65,15 @@ void __init pxa168_init_irq(void) /* APB peripheral clocks */ static APBC_CLK(uart1, PXA168_UART1, 1, 14745600); static APBC_CLK(uart2, PXA168_UART2, 1, 14745600); +static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000); +static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000); /* device and clock bindings */ static struct clk_lookup pxa168_clkregs[] = { INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL), INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL), + INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL), + INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL), }; static int __init pxa168_init(void) @@ -109,3 +113,5 @@ struct sys_timer pxa168_timer = { /* on-chip devices */ PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22); PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24); +PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); +PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c index 453f8f7758b..b97328b96ce 100644 --- a/arch/arm/mach-mmp/pxa910.c +++ b/arch/arm/mach-mmp/pxa910.c @@ -103,11 +103,15 @@ void __init pxa910_init_irq(void) /* APB peripheral clocks */ static APBC_CLK(uart1, PXA910_UART0, 1, 14745600); static APBC_CLK(uart2, PXA910_UART1, 1, 14745600); +static APBC_CLK(twsi0, PXA168_TWSI0, 1, 33000000); +static APBC_CLK(twsi1, PXA168_TWSI1, 1, 33000000); /* device and clock bindings */ static struct clk_lookup pxa910_clkregs[] = { INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL), INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL), + INIT_CLKREG(&clk_twsi0, "pxa2xx-i2c.0", NULL), + INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.1", NULL), }; static int __init pxa910_init(void) @@ -156,3 +160,5 @@ struct sys_timer pxa910_timer = { */ PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22); PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24); +PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28); +PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28); -- cgit v1.2.3