74xx_7xx: CPCI750: Add loadpci command

This command is used to load/boot an OS-image which is transferred from
the CPCI host to the CPCI target/adapter.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>

diff --git a/board/esd/cpci750/cpci750.c b/board/esd/cpci750/cpci750.c
index 258d8b234bc114c82e8759c563c2d5383a3d85b4..cd806e1c15bc5718c006f26f32544fb7bf4c43d8 100644 (file)
--- a/board/esd/cpci750/cpci750.c
+++ b/board/esd/cpci750/cpci750.c
@@ -122,6 +122,9 @@ static char show_config_tab[][15] = {{"PCI0DLL_2     "},  /* 31 */
 
 extern flash_info_t flash_info[];
 
+extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+extern int do_bootvx (cmd_tbl_t *, int, int, char *[]);
+
 /* ------------------------------------------------------------------------- */
 
 /* this is the current GT register space location */
@@ -538,6 +541,79 @@ int display_mem_map (void)
        return (0);
 }
 
+/*
+ * Command loadpci: wait for signal from host and boot image.
+ */
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+       volatile unsigned int *ptr;
+       int count = 0;
+       int count2 = 0;
+       int status;
+       char addr[16];
+       char str[] = "\\|/-";
+       char *local_args[2];
+
+       /*
+        * Mark sync address
+        */
+       ptr = 0;
+       ptr[0] = 0xffffffff;
+       ptr[1] = 0xffffffff;
+       puts("\nWaiting for image from pci host -");
+
+       /*
+        * Wait for host to write the start address
+        */
+       while (*ptr == 0xffffffff) {
+               count++;
+               if (!(count % 100)) {
+                       count2++;
+                       putc(0x08); /* backspace */
+                       putc(str[count2 % 4]);
+               }
+
+               /* Abort if ctrl-c was pressed */
+               if (ctrlc()) {
+                       puts("\nAbort\n");
+                       return 0;
+               }
+
+               udelay(1000);
+       }
+
+       sprintf(addr, "%08x", *ptr);
+       printf("\nBooting Image at addr 0x%s ...\n", addr);
+       setenv("loadaddr", addr);
+
+       switch (ptr[1] == 0) {
+       case 0:
+               /*
+                * Boot image via bootm
+                */
+               local_args[0] = argv[0];
+               local_args[1] = NULL;
+               status = do_bootm (cmdtp, 0, 1, local_args);
+               break;
+       case 1:
+               /*
+                * Boot image via bootvx
+                */
+               local_args[0] = argv[0];
+               local_args[1] = NULL;
+               status = do_bootvx (cmdtp, 0, 1, local_args);
+               break;
+       }
+
+       return 0;
+}
+
+U_BOOT_CMD(
+       loadpci,        1,      1,      do_loadpci,
+       "loadpci - Wait for pci-image and boot it\n",
+       NULL
+       );
+
 /* DRAM check routines copied from gw8260 */
 
 #if defined (CONFIG_SYS_DRAM_TEST)