From 1611c8cbcfe2ee50cc5e96f3a5c666c99d235107 Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak Date: Tue, 27 Oct 2015 13:08:05 +0100 Subject: exynos5-dt-types: add board detection for Odroid XU3/XU3L/XU4. This commit adds additional file with implementation of board detection code for Odroid-XU3/XU4. The detection depends on compatible found in fdt: - "samsung,exynos5" - uses Exynos5 generic code - "samsung,odroidxu3" - try detect XU3 revision There are few revisions of Odroid XU3/XU4, each can be detected by checking the value of channel 9 of built-in ADC: Rev ADC Board 0.1 0 XU3 0.1 0.2 372 XU3 0.2 | XU3L - no DISPLAYPORT 0.3 1280 XU4 0.1 The detection code depends on the ADC+10% value. Implementation of functions: - set_board_type() - read ADC and set type - get_board_rev() - returns board revision: 1..3 - get_board_type() - returns board type string Additional functions with return values of bool: - board_is_generic() - true if found compatible "samsung,exynos5" but not "samsung,odroidxu3" - board_is_odroidxu3() - true if found compatible "samsung,odroidxu3" and one of XU3 revision. - board_is_odroidxu4() - true if found compatible "samsung,odroidxu3" and XU4 revision. After I2C controller init, the get_board_type() can check if the XU3 board is a "Lite" variant, by probing chip 0x40 on I2C0 (INA231 - exists only on non-lite). This is useful for setting fdt file name at misc_init_r(). Enabled configs: - CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG - CONFIG_ODROID_REV_AIN - CONFIG_REVISION_TAG - CONFIG_BOARD_TYPES Signed-off-by: Przemyslaw Marczak Cc: Minkyu Kang Cc: Simon Glass Tested-by: Anand Moon Signed-off-by: Minkyu Kang --- include/configs/odroid_xu3.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/configs/odroid_xu3.h') diff --git a/include/configs/odroid_xu3.h b/include/configs/odroid_xu3.h index 3c70158..648e48b 100644 --- a/include/configs/odroid_xu3.h +++ b/include/configs/odroid_xu3.h @@ -94,6 +94,8 @@ "boot.scr fat 0 1;" \ "boot.cmd fat 0 1;" \ "exynos5422-odroidxu3.dtb fat 0 1;" \ + "exynos5422-odroidxu3-lite.dtb fat 0 1;" \ + "exynos5422-odroidxu4.dtb fat 0 1;" \ "boot part 0 1;" \ "root part 0 2\0" @@ -113,9 +115,19 @@ /* Enable: board/samsung/common/misc.c to use set_dfu_alt_info() */ #define CONFIG_MISC_COMMON +#define CONFIG_MISC_INIT_R #define CONFIG_SET_DFU_ALT_INFO #define CONFIG_SET_DFU_ALT_BUF_LEN (SZ_1K) +/* Set soc_rev, soc_id, board_rev, boardname, fdtfile */ +#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG +#define CONFIG_ODROID_REV_AIN 9 +#define CONFIG_REVISION_TAG +#define CONFIG_BOARD_TYPES + +#undef CONFIG_SYS_BOARD +#define CONFIG_SYS_BOARD "odroid" + /* Define new extra env settings, including DFU settings */ #undef CONFIG_EXTRA_ENV_SETTINGS #define CONFIG_EXTRA_ENV_SETTINGS \ -- cgit v1.1