board: freescale: ls1012ardb: Add command to switch QSPI bank
Add command "boot_bank X" to switch the boot bank to either 1 or 2.
Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1012ardb/ls1012ardb.c b/board/freescale/ls1012ardb/ls1012ardb.c
index a1668b9..888f850 100644
--- a/board/freescale/ls1012ardb/ls1012ardb.c
+++ b/board/freescale/ls1012ardb/ls1012ardb.c
@@ -25,6 +25,9 @@
DECLARE_GLOBAL_DATA_PTR;
+#define BOOT_FROM_UPPER_BANK 0x2
+#define BOOT_FROM_LOWER_BANK 0x1
+
int checkboard(void)
{
#ifdef CONFIG_TARGET_LS1012ARDB
@@ -211,3 +214,85 @@
return 0;
}
+
+static int switch_to_bank1(void)
+{
+ u8 data;
+ int ret;
+
+ i2c_set_bus_num(0);
+
+ data = 0xf4;
+ ret = i2c_write(0x24, 0x3, 1, &data, 1);
+ if (ret) {
+ printf("i2c write error to chip : %u, addr : %u, data : %u\n",
+ 0x24, 0x3, data);
+ }
+
+ return ret;
+}
+
+static int switch_to_bank2(void)
+{
+ u8 data;
+ int ret;
+
+ i2c_set_bus_num(0);
+
+ data = 0xfc;
+ ret = i2c_write(0x24, 0x7, 1, &data, 1);
+ if (ret) {
+ printf("i2c write error to chip : %u, addr : %u, data : %u\n",
+ 0x24, 0x7, data);
+ goto err;
+ }
+
+ data = 0xf5;
+ ret = i2c_write(0x24, 0x3, 1, &data, 1);
+ if (ret) {
+ printf("i2c write error to chip : %u, addr : %u, data : %u\n",
+ 0x24, 0x3, data);
+ }
+err:
+ return ret;
+}
+
+static int convert_flash_bank(int bank)
+{
+ int ret = 0;
+
+ switch (bank) {
+ case BOOT_FROM_UPPER_BANK:
+ ret = switch_to_bank2();
+ break;
+ case BOOT_FROM_LOWER_BANK:
+ ret = switch_to_bank1();
+ break;
+ default:
+ ret = CMD_RET_USAGE;
+ break;
+ };
+
+ return ret;
+}
+
+static int flash_bank_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ if (argc != 2)
+ return CMD_RET_USAGE;
+ if (strcmp(argv[1], "1") == 0)
+ convert_flash_bank(BOOT_FROM_LOWER_BANK);
+ else if (strcmp(argv[1], "2") == 0)
+ convert_flash_bank(BOOT_FROM_UPPER_BANK);
+ else
+ return CMD_RET_USAGE;
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ boot_bank, 2, 0, flash_bank_cmd,
+ "Flash bank Selection Control",
+ "bank[1-lower bank/2-upper bank] (e.g. boot_bank 1)"
+);