karo: bootce: add option '-i' to bootce command to init global data struct

[karo-tx-uboot.git] / common / cmd_bootce.c

diff --git a/common/cmd_bootce.c b/common/cmd_bootce.c
index e24239d85565e21941dd05334c3ce5745fd8e8d9..c30ed1feeaec843a0496e4977f732b47f59ec098 100644 (file)
--- a/common/cmd_bootce.c
+++ b/common/cmd_bootce.c
@@ -145,21 +145,11 @@ static void ce_setup_std_drv_globals(ce_std_driver_globals *std_drv_glb)
        }
 }
 
-static void ce_prepare_run_bin(ce_bin *bin)
+static void ce_init_drv_globals(void)
 {
        struct ce_magic *ce_magic = (void *)CONFIG_SYS_SDRAM_BASE + 0x160;
        ce_std_driver_globals *std_drv_glb = &ce_magic->drv_glb;
 
-       /* Clear os RAM area (if needed) */
-       if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
-               debug("cleaning memory from %p to %p\n",
-                       bin->eRamStart, bin->eRamStart + bin->eRamLen);
-
-               printf("Preparing clean boot ... ");
-               memset(bin->eRamStart, 0, bin->eRamLen);
-               printf("ok\n");
-       }
-
        debug("Copying CE MAGIC from %p to %p..%p\n",
                &ce_magic_template, ce_magic,
                (void *)ce_magic + sizeof(*ce_magic) - 1);
@@ -170,6 +160,21 @@ static void ce_prepare_run_bin(ce_bin *bin)
                strlen(std_drv_glb->mtdparts) + 1;
        ce_dump_block(ce_magic, offsetof(struct ce_magic, drv_glb) +
                ce_magic->size);
+}
+
+static void ce_prepare_run_bin(ce_bin *bin)
+{
+       /* Clear os RAM area (if needed) */
+       if (bin->edbgConfig.flags & EDBG_FL_CLEANBOOT) {
+               debug("cleaning memory from %p to %p\n",
+                       bin->eRamStart, bin->eRamStart + bin->eRamLen);
+
+               printf("Preparing clean boot ... ");
+               memset(bin->eRamStart, 0, bin->eRamLen);
+               printf("ok\n");
+       }
+
+       ce_init_drv_globals();
 
        /*
         * Make sure, all the above makes it into SDRAM because
@@ -372,6 +377,10 @@ static int do_bootce(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
        size_t image_size;
 
        if (argc > 1) {
+               if (strcmp(argv[1], "-i") == 0) {
+                       ce_init_drv_globals();
+                       return CMD_RET_SUCCESS;
+               }
                addr = (void *)simple_strtoul(argv[1], NULL, 16);
                image_size = INT_MAX;           /* actually we do not know the image size */
        } else if (getenv("fileaddr") != NULL) {
@@ -410,7 +419,9 @@ U_BOOT_CMD(
        bootce, 2, 0, do_bootce,
        "Boot a Windows CE image from RAM",
        "[addr]\n"
-       "\taddr\t\tboot image from address addr (default ${fileaddr})"
+       "\taddr\t\tboot image from address addr (default ${fileaddr})\n"
+       "or\n"
+       "\t-i\t\tinitialize the WinCE globals data structure (before loading a .nb0 image)"
 );
 
 #ifdef CONFIG_CMD_NAND