am335x_evm: Add support to boot from NOR.

[people/ms/u-boot.git] / include / configs / am335x_evm.h

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 6bc4423914885c50d42d2d40e3bb091c50d293b5..3ca35c32dca768fb0b9d77fee8efe15aede8950d 100644 (file)
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -40,6 +40,9 @@
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
 
+/* Custom script for NOR */
+#define CONFIG_SYS_LDSCRIPT            "board/ti/am335x/u-boot.lds"
+
 #define CONFIG_SYS_CACHELINE_SIZE       64
 
 /* commands to include */
@@ -306,6 +309,7 @@
 #define CONFIG_ENV_OVERWRITE           1
 #define CONFIG_SYS_CONSOLE_INFO_QUIET
 
+#ifndef CONFIG_NOR_BOOT
 /* Defines for SPL */
 #define CONFIG_SPL
 #define CONFIG_SPL_FRAMEWORK
@@ -377,6 +381,7 @@
 #define CONFIG_SPL_NAND_BASE
 #define CONFIG_SPL_NAND_DRIVERS
 #define CONFIG_SPL_NAND_ECC
+#endif
 #define CONFIG_SYS_NAND_5_ADDR_CYCLE
 #define CONFIG_SYS_NAND_PAGE_COUNT     (CONFIG_SYS_NAND_BLOCK_SIZE / \
                                         CONFIG_SYS_NAND_PAGE_SIZE)
@@ -405,14 +410,18 @@
  * header. That is 0x800FFFC0--0x80100000 should not be used for any
  * other needs.
  */
+#ifdef CONFIG_NOR_BOOT
+#define CONFIG_SYS_TEXT_BASE           0x08000000
+#else
 #define CONFIG_SYS_TEXT_BASE           0x80800000
+#endif
 #define CONFIG_SYS_SPL_MALLOC_START    0x80a08000
 #define CONFIG_SYS_SPL_MALLOC_SIZE     0x100000
 
 /* Since SPL did pll and ddr initialization for us,
  * we don't need to do it twice.
  */
-#ifndef CONFIG_SPL_BUILD
+#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #endif
 
@@ -509,7 +518,7 @@
                                                        /* CS0 */
 #define CONFIG_SYS_MAX_NAND_DEVICE     1               /* Max number of NAND
                                                           devices */
-#if !defined(CONFIG_SPI_BOOT)
+#if !defined(CONFIG_SPI_BOOT) && !defined(CONFIG_NOR_BOOT)
 #define MTDIDS_DEFAULT                 "nand0=omap2-nand.0"
 #define MTDPARTS_DEFAULT               "mtdparts=omap2-nand.0:128k(SPL)," \
                                        "128k(SPL.backup1)," \
@@ -523,4 +532,45 @@
 #endif
 #endif
 
+/*
+ * NOR Size = 16 MiB
+ * Number of Sectors/Blocks = 128
+ * Sector Size = 128 KiB
+ * Word length = 16 bits
+ * Default layout:
+ * 0x000000 - 0x07FFFF : U-Boot (512 KiB)
+ * 0x080000 - 0x09FFFF : First copy of U-Boot Environment (128 KiB)
+ * 0x0A0000 - 0x0BFFFF : Second copy of U-Boot Environment (128 KiB)
+ * 0x0C0000 - 0x4BFFFF : Linux Kernel (4 MiB)
+ * 0x4C0000 - 0xFFFFFF : Userland (11 MiB + 256 KiB)
+ */
+#if defined(CONFIG_NOR)
+#undef CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+#define CONFIG_SYS_FLASH_PROTECTION
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_FLASH_CFI_MTD
+#define CONFIG_SYS_MAX_FLASH_SECT      128
+#define CONFIG_SYS_MAX_FLASH_BANKS     1
+#define CONFIG_SYS_FLASH_BASE          (0x08000000)
+#define CONFIG_SYS_FLASH_CFI_WIDTH     FLASH_CFI_16BIT
+#define CONFIG_SYS_MONITOR_BASE                CONFIG_SYS_FLASH_BASE
+#ifdef CONFIG_NOR_BOOT
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_SECT_SIZE           (128 << 10)     /* 128 KiB */
+#define CONFIG_ENV_OFFSET              (512 << 10)     /* 512 KiB */
+#define CONFIG_ENV_OFFSET_REDUND       (768 << 10)     /* 768 KiB */
+#define CONFIG_CMD_MTDPARTS
+#define MTDIDS_DEFAULT                 "nor0=physmap-flash.0"
+#define MTDPARTS_DEFAULT               "mtdparts=physmap-flash.0:" \
+                                       "512k(u-boot)," \
+                                       "128k(u-boot-env1)," \
+                                       "128k(u-boot-env2)," \
+                                       "4m(kernel),-(rootfs)"
+#endif
+#define CONFIG_MTD_DEVICE
+#define CONFIG_CMD_FLASH
+#endif  /* NOR support */
+
 #endif /* ! __CONFIG_AM335X_EVM_H */