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From 8d2caf59e024d664d3c06757d727aecfb618b74e Mon Sep 17 00:00:00 2001
From: Jan Luebbe <jlu@pengutronix.de>
Date: Sun, 31 Mar 2013 12:27:14 +0200
Subject: [PATCH 6/8] beaglebone: enable i2c
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
---
arch/arm/boards/beaglebone/board.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boards/beaglebone/board.c b/arch/arm/boards/beaglebone/board.c
index e4b8b0a..42dbebf 100644
--- a/arch/arm/boards/beaglebone/board.c
+++ b/arch/arm/boards/beaglebone/board.c
@@ -42,6 +42,7 @@
#include <mach/gpmc.h>
#include <mach/ehci.h>
#include <i2c/i2c.h>
+#include <i2c/i2c-gpio.h>
#include <linux/err.h>
#include <linux/phy.h>
#include <usb/ehci.h>
@@ -100,16 +101,33 @@ static void beaglebone_eth_init(void)
am33xx_add_cpsw(&cpsw_data);
}
+static struct i2c_board_info i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("24c256", 0x50)
+ },
+};
+
+static struct i2c_gpio_platform_data i2c_gpio_data = {
+ .sda_pin = 32*3 + 5,
+ .sda_is_open_drain = 0,
+ .scl_pin = 32*3 + 6,
+ .scl_is_open_drain = 0,
+ .udelay = 5, /* ~100 kHz */
+};
+
static int beaglebone_devices_init(void)
{
am33xx_add_mmc0(NULL);
- enable_i2c0_pin_mux();
beaglebone_eth_init();
armlinux_set_bootparams((void *)0x80000100);
armlinux_set_architecture(MACH_TYPE_BEAGLEBONE);
+ enable_i2c0_pin_mux_gpio();
+ i2c_register_board_info(0, i2c_devices, ARRAY_SIZE(i2c_devices));
+ add_generic_device_res("i2c-gpio", 0, NULL, 0, &i2c_gpio_data);
+
return 0;
}
device_initcall(beaglebone_devices_init);
--
1.8.2.rc2
|
