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 258d8b2..cd806e1 100644
--- a/board/esd/cpci750/cpci750.c
+++ b/board/esd/cpci750/cpci750.c
@@ -122,6 +122,9 @@
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 @@
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)