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 ++++++++++++
include/samsung/exynos5-dt-types.h | 27 +++++++++++++++++++++++++++
2 files changed, 39 insertions(+)
create mode 100644 include/samsung/exynos5-dt-types.h
(limited to 'include')
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 \
diff --git a/include/samsung/exynos5-dt-types.h b/include/samsung/exynos5-dt-types.h
new file mode 100644
index 0000000..479e2e7
--- /dev/null
+++ b/include/samsung/exynos5-dt-types.h
@@ -0,0 +1,27 @@
+#ifndef _EXYNOS5_DT_H_
+#define _EXYNOS5_DT_H_
+
+enum {
+ EXYNOS5_BOARD_GENERIC,
+
+ EXYNOS5_BOARD_ODROID_XU3,
+ EXYNOS5_BOARD_ODROID_XU3_REV01,
+ EXYNOS5_BOARD_ODROID_XU3_REV02,
+ EXYNOS5_BOARD_ODROID_XU4_REV01,
+ EXYNOS5_BOARD_ODROID_UNKNOWN,
+
+ EXYNOS5_BOARD_COUNT,
+};
+
+struct odroid_rev_info {
+ int board_type;
+ int board_rev;
+ int adc_val;
+ const char *name;
+};
+
+bool board_is_generic(void);
+bool board_is_odroidxu3(void);
+bool board_is_odroidxu4(void);
+
+#endif
--
cgit v1.1