Move CONFIG_OF_LIBFDT to Kconfig

[platform/kernel/u-boot.git] / include / spl.h

diff --git a/include/spl.h b/include/spl.h
index b2e5bf7..92cdc04 100644 (file)
--- a/include/spl.h
+++ b/include/spl.h
@@ -11,6 +11,8 @@
 #include <linux/compiler.h>
 #include <asm/spl.h>
 
+/* Value in r0 indicates we booted from U-Boot */
+#define UBOOT_NOT_LOADED_FROM_SPL      0x13578642
 
 /* Boot type */
 #define MMCSD_MODE_UNDEFINED   0
@@ -43,31 +45,31 @@ int spl_start_uboot(void);
 void spl_display_print(void);
 
 /* NAND SPL functions */
-void spl_nand_load_image(void);
+int spl_nand_load_image(void);
 
 /* OneNAND SPL functions */
-void spl_onenand_load_image(void);
+int spl_onenand_load_image(void);
 
 /* NOR SPL functions */
-void spl_nor_load_image(void);
+int spl_nor_load_image(void);
 
 /* MMC SPL functions */
-void spl_mmc_load_image(void);
+int spl_mmc_load_image(u32 boot_device);
 
 /* YMODEM SPL functions */
-void spl_ymodem_load_image(void);
+int spl_ymodem_load_image(void);
 
 /* SPI SPL functions */
-void spl_spi_load_image(void);
+int spl_spi_load_image(void);
 
 /* Ethernet SPL functions */
-void spl_net_load_image(const char *device);
+int spl_net_load_image(const char *device);
 
 /* USB SPL functions */
-void spl_usb_load_image(void);
+int spl_usb_load_image(void);
 
 /* SATA SPL functions */
-void spl_sata_load_image(void);
+int spl_sata_load_image(void);
 
 /* SPL FAT image functions */
 int spl_load_image_fat(block_dev_desc_t *block_dev, int partition, const char *filename);
@@ -79,7 +81,30 @@ void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
 int spl_load_image_ext(block_dev_desc_t *block_dev, int partition, const char *filename);
 int spl_load_image_ext_os(block_dev_desc_t *block_dev, int partition);
 
+/**
+ * spl_init() - Set up device tree and driver model in SPL if enabled
+ *
+ * Call this function in board_init_f() if you want to use device tree and
+ * driver model early, before board_init_r() is called. This function will
+ * be called from board_init_r() if not called earlier.
+ *
+ * If this is not called, then driver model will be inactive in SPL's
+ * board_init_f(), and no device tree will be available.
+ */
+int spl_init(void);
+
 #ifdef CONFIG_SPL_BOARD_INIT
 void spl_board_init(void);
 #endif
+
+/**
+ * spl_was_boot_source() - check if U-Boot booted from SPL
+ *
+ * This will normally be true, but if U-Boot jumps to second U-Boot, it will
+ * be false. This should be implemented by board-specific code.
+ *
+ * @return true if U-Boot booted from SPL, else false
+ */
+bool spl_was_boot_source(void);
+
 #endif