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board: freescale: ls1012ardb: Add command to switch QSPI bank

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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>
This commit is contained in:
Jagdish Gediya 2018-04-13 00:18:22 +05:30 committed by York Sun
parent 373413cce6
commit 3fa48f0a1a
1 changed files with 85 additions and 0 deletions
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85
board/freescale/ls1012ardb/ls1012ardb.c
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@ -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 @@ int ft_board_setup(void *blob, bd_t *bd)
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)"
);