microblaze: Add SPL support
Add support for U-BOOT SPL. NOR and RAM mode are supported.
There are 3 images in NOR flash. u-boot.img, dtb and kernel.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index 35e5a4a..486787e 100644
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -447,4 +447,64 @@
# undef CONFIG_PHYLIB
#endif
+/* SPL part */
+#define CONFIG_SPL
+#define CONFIG_CMD_SPL
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_BOARD_INIT
+
+#define CONFIG_SPL_LDSCRIPT "arch/microblaze/cpu/u-boot-spl.lds"
+
+#define CONFIG_SPL_RAM_DEVICE
+#define CONFIG_SPL_NOR_SUPPORT
+
+/* for booting directly linux */
+#define CONFIG_SPL_OS_BOOT
+
+#define CONFIG_SYS_OS_BASE (CONFIG_SYS_FLASH_BASE + \
+ 0x60000)
+#define CONFIG_SYS_FDT_BASE (CONFIG_SYS_FLASH_BASE + \
+ 0x40000)
+#define CONFIG_SYS_SPL_ARGS_ADDR (CONFIG_SYS_TEXT_BASE + \
+ 0x1000000)
+
+/* SP location before relocation, must use scratch RAM */
+/* BRAM start */
+#define CONFIG_SYS_INIT_RAM_ADDR 0x0
+/* BRAM size - will be generated */
+#define CONFIG_SYS_INIT_RAM_SIZE 0x10000
+/* Stack pointer prior relocation, must situated at on-chip RAM */
+#define CONFIG_SYS_SPL_MALLOC_END (CONFIG_SYS_INIT_RAM_ADDR + \
+ CONFIG_SYS_INIT_RAM_SIZE - \
+ GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100
+
+/*
+ * The main reason to do it in this way is that MALLOC_START
+ * can't be defined - common/spl/spl.c
+ */
+#if (CONFIG_SYS_SPL_MALLOC_SIZE != 0)
+# define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_SPL_MALLOC_END - \
+ CONFIG_SYS_SPL_MALLOC_SIZE)
+# define CONFIG_SPL_STACK_ADDR CONFIG_SYS_SPL_MALLOC_START
+#else
+# define CONFIG_SPL_STACK_ADDR CONFIG_SYS_SPL_MALLOC_END
+#endif
+
+/* Just for sure that there is a space for stack */
+#define CONFIG_SPL_STACK_SIZE 0x100
+
+#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_FLASH_BASE
+#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SPL_MAX_FOOTPRINT (CONFIG_SYS_INIT_RAM_SIZE - \
+ CONFIG_SYS_INIT_RAM_ADDR - \
+ GENERATED_GBL_DATA_SIZE - \
+ CONFIG_SYS_SPL_MALLOC_SIZE - \
+ CONFIG_SPL_STACK_SIZE)
+
#endif /* __CONFIG_H */