sandbox: Generalise SPL booting

At present sandbox only supports jumping to a file, to get to the next
U-Boot phase. We want to support other methods, so update the code to
use an enum for the method. Also use the

Use board_boot_order() to set the order, so we can add more options.
Also add the MMC methods into the BOOT_DEVICE enum so that booting
from MMC can be supported.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/sandbox/cpu/spl.c b/arch/sandbox/cpu/spl.c
index 9c59cc2..2678370 100644 (file)
--- a/arch/sandbox/cpu/spl.c
+++ b/arch/sandbox/cpu/spl.c
@@ -49,13 +49,13 @@ void board_init_f(ulong flag)
        preloader_console_init();
 }
 
-u32 spl_boot_device(void)
+void board_boot_order(u32 *spl_boot_list)
 {
-       return BOOT_DEVICE_BOARD;
+       spl_boot_list[0] = BOOT_DEVICE_BOARD;
 }
 
-static int spl_board_load_image(struct spl_image_info *spl_image,
-                               struct spl_boot_device *bootdev)
+static int spl_board_load_file(struct spl_image_info *spl_image,
+                              struct spl_boot_device *bootdev)
 {
        char fname[256];
        int ret;
@@ -74,10 +74,11 @@ static int spl_board_load_image(struct spl_image_info *spl_image,
        if (!spl_image->arg)
                return log_msg_ret("exec", -ENOMEM);
        strcpy(spl_image->arg, fname);
+       spl_image->flags = SPL_SANDBOXF_ARG_IS_FNAME;
 
        return 0;
 }
-SPL_LOAD_IMAGE_METHOD("sandbox", 9, BOOT_DEVICE_BOARD, spl_board_load_image);
+SPL_LOAD_IMAGE_METHOD("sandbox", 9, BOOT_DEVICE_BOARD, spl_board_load_file);
 
 void spl_board_init(void)
 {
@@ -96,13 +97,21 @@ void spl_board_init(void)
 
 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 {
-       const char *fname = spl_image->arg;
-
-       if (fname) {
-               os_fd_restore();
-               os_spl_to_uboot(fname);
-       } else {
-               printf("No filename provided for U-Boot\n");
+       switch (spl_image->flags) {
+       case SPL_SANDBOXF_ARG_IS_FNAME: {
+               const char *fname = spl_image->arg;
+
+               if (fname) {
+                       os_fd_restore();
+                       os_spl_to_uboot(fname);
+               } else {
+                       log_err("No filename provided for U-Boot\n");
+               }
+               break;
+       }
+       default:
+               log_err("Invalid flags\n");
+               break;
        }
        hang();
 }

diff --git a/arch/sandbox/include/asm/spl.h b/arch/sandbox/include/asm/spl.h
index bf5a585..312aef7 100644 (file)
--- a/arch/sandbox/include/asm/spl.h
+++ b/arch/sandbox/include/asm/spl.h
@@ -7,6 +7,9 @@
 #define __asm_spl_h
 
 enum {
+       BOOT_DEVICE_MMC1,
+       BOOT_DEVICE_MMC2,
+       BOOT_DEVICE_MMC2_2,
        BOOT_DEVICE_BOARD,
 };
 

diff --git a/include/spl.h b/include/spl.h
index 09a12f8..c2c1f96 100644 (file)
--- a/include/spl.h
+++ b/include/spl.h
@@ -228,6 +228,15 @@ static inline const char *spl_phase_prefix(enum u_boot_phase phase)
 # define SPL_TPL_PROMPT        ""
 #endif
 
+/**
+ * enum spl_sandbox_flags - flags for sandbox's use of spl_image_info->flags
+ *
+ * @SPL_SANDBOXF_ARG_IS_FNAME: arg is the filename to jump to (default)
+ */
+enum spl_sandbox_flags {
+       SPL_SANDBOXF_ARG_IS_FNAME = 0,
+};
+
 struct spl_image_info {
        const char *name;
        u8 os;