diff options
Diffstat (limited to 'patches/barebox-2013.04.0/0006-beaglebone-enable-i2c.patch')
| -rw-r--r-- | patches/barebox-2013.04.0/0006-beaglebone-enable-i2c.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/patches/barebox-2013.04.0/0006-beaglebone-enable-i2c.patch b/patches/barebox-2013.04.0/0006-beaglebone-enable-i2c.patch new file mode 100644 index 0000000..cf46a83 --- /dev/null +++ b/patches/barebox-2013.04.0/0006-beaglebone-enable-i2c.patch @@ -0,0 +1,60 @@ +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 + |