board: add SDHCI support for PIC32MZDASK board.
Enable MMC, SDHCI, FAT_FS support for PIC32MZ[DA] StarterKit.
Also add custom scripts, rules to boot Linux from microSD card.
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
diff --git a/include/configs/pic32mzdask.h b/include/configs/pic32mzdask.h
index 5ba2a19..b258038 100644
--- a/include/configs/pic32mzdask.h
+++ b/include/configs/pic32mzdask.h
@@ -46,6 +46,7 @@
#define CONFIG_SYS_LOAD_ADDR 0x88500000 /* default load address */
#define CONFIG_SYS_ENV_ADDR 0x88300000
+#define CONFIG_SYS_FDT_ADDR 0x89d00000
/* Memory Test */
#define CONFIG_SYS_MEMTEST_START 0x88000000
@@ -77,6 +78,33 @@
*/
#define CONFIG_OF_LIBFDT 1
+/*-----------------------------------------------------------------------
+ * SDHC Configuration
+ */
+#define CONFIG_SDHCI
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_CMD_MMC
+
+/*-----------------------------------------------------------------------
+ * File System Configuration
+ */
+/* FAT FS */
+#define CONFIG_DOS_PARTITION
+#define CONFIG_PARTITION_UUIDS
+#define CONFIG_SUPPORT_VFAT
+#define CONFIG_FS_FAT
+#define CONFIG_FAT_WRITE
+#define CONFIG_CMD_FS_GENERIC
+#define CONFIG_CMD_PART
+#define CONFIG_CMD_FAT
+
+/* EXT4 FS */
+#define CONFIG_FS_EXT4
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_EXT4
+#define CONFIG_CMD_EXT4_WRITE
+
/* -------------------------------------------------
* Environment
*/
@@ -87,7 +115,34 @@
* Board boot configuration
*/
#define CONFIG_TIMESTAMP /* Print image info with timestamp */
-#define CONFIG_BOOTDELAY 5 /* autoboot after X seconds */
-#undef CONFIG_BOOTARGS
+#define CONFIG_BOOTDELAY 5
+
+#define MEM_LAYOUT_ENV_SETTINGS \
+ "kernel_addr_r="__stringify(CONFIG_SYS_LOAD_ADDR)"\0" \
+ "fdt_addr_r="__stringify(CONFIG_SYS_FDT_ADDR)"\0" \
+ "scriptaddr="__stringify(CONFIG_SYS_ENV_ADDR)"\0"
+
+#define CONFIG_LEGACY_BOOTCMD_ENV \
+ "legacy_bootcmd= " \
+ "if load mmc 0 ${scriptaddr} uEnv.txt; then " \
+ "env import -tr ${scriptaddr} ${filesize}; " \
+ "if test -n \"${bootcmd_uenv}\" ; then " \
+ "echo Running bootcmd_uenv ...; " \
+ "run bootcmd_uenv; " \
+ "fi; " \
+ "fi; \0"
+
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 0)
+
+#include <config_distro_bootcmd.h>
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ MEM_LAYOUT_ENV_SETTINGS \
+ CONFIG_LEGACY_BOOTCMD_ENV \
+ BOOTENV
+
+#undef CONFIG_BOOTCOMMAND
+#define CONFIG_BOOTCOMMAND "run distro_bootcmd || run legacy_bootcmd"
#endif /* __PIC32MZDASK_CONFIG_H */