X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fmach-at91%2Fat91sam9261_devices.c;h=64979a9023c2cb4e0a674cbb8cc9303ae0066074;hb=b62c855938be50c13f3f2aa81fafe4a9ca2b6650;hp=e1504766fd6401127e1af02f7e8cd911c8707675;hpb=6606e17a7f1c3bc1b1e83d0c517f11d094e55bf1;p=linux-2.6

diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index e1504766fd..64979a9023 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -14,6 +14,10 @@
 #include <asm/mach/map.h>
 
 #include <linux/platform_device.h>
+#include <linux/i2c-gpio.h>
+
+#include <linux/fb.h>
+#include <video/atmel_lcdc.h>
 
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
@@ -23,9 +27,6 @@
 
 #include "generic.h"
 
-#define SZ_512	0x00000200
-#define SZ_256	0x00000100
-#define SZ_16	0x00000010
 
 /* --------------------------------------------------------------------
  *  USB Host
@@ -276,7 +277,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {}
  *  TWI (i2c)
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
+/*
+ * Prefer the GPIO code since the TWI controller isn't robust
+ * (gets overruns and underruns under load) and can only issue
+ * repeated STARTs in one scenario (the driver doesn't yet handle them).
+ */
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+
+static struct i2c_gpio_platform_data pdata = {
+	.sda_pin		= AT91_PIN_PA7,
+	.sda_is_open_drain	= 1,
+	.scl_pin		= AT91_PIN_PA8,
+	.scl_is_open_drain	= 1,
+	.udelay			= 2,		/* ~100 kHz */
+};
+
+static struct platform_device at91sam9261_twi_device = {
+	.name			= "i2c-gpio",
+	.id			= -1,
+	.dev.platform_data	= &pdata,
+};
+
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
+{
+	at91_set_GPIO_periph(AT91_PIN_PA7, 1);		/* TWD (SDA) */
+	at91_set_multi_drive(AT91_PIN_PA7, 1);
+
+	at91_set_GPIO_periph(AT91_PIN_PA8, 1);		/* TWCK (SCL) */
+	at91_set_multi_drive(AT91_PIN_PA8, 1);
+
+	i2c_register_board_info(0, devices, nr_devices);
+	platform_device_register(&at91sam9261_twi_device);
+}
+
+#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 
 static struct resource twi_resources[] = {
 	[0] = {
@@ -298,7 +332,7 @@ static struct platform_device at91sam9261_twi_device = {
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };
 
-void __init at91_add_device_i2c(void)
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 {
 	/* pins used for TWI interface */
 	at91_set_A_periph(AT91_PIN_PA7, 0);		/* TWD */
@@ -307,10 +341,11 @@ void __init at91_add_device_i2c(void)
 	at91_set_A_periph(AT91_PIN_PA8, 0);		/* TWCK */
 	at91_set_multi_drive(AT91_PIN_PA8, 1);
 
+	i2c_register_board_info(0, devices, nr_devices);
 	platform_device_register(&at91sam9261_twi_device);
 }
 #else
-void __init at91_add_device_i2c(void) {}
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 #endif
 
 
@@ -430,9 +465,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  *  LCD Controller
  * -------------------------------------------------------------------- */
 
-#if defined(CONFIG_FB_AT91) || defined(CONFIG_FB_AT91_MODULE)
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = 0xffffffffUL;
-static struct at91fb_info lcdc_data;
+static struct atmel_lcdfb_info lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -455,7 +490,7 @@ static struct resource lcdc_resources[] = {
 };
 
 static struct platform_device at91_lcdc_device = {
-	.name		= "at91-fb",
+	.name		= "atmel_lcdfb",
 	.id		= 0,
 	.dev		= {
 				.dma_mask		= &lcdc_dmamask,
@@ -466,7 +501,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct at91fb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 {
 	if (!data) {
 		return;
@@ -499,7 +534,7 @@ void __init at91_add_device_lcdc(struct at91fb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct at91fb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 #endif