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imx8mn: add get_boot_device

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No ROM INFO structure on iMX8MN, use new ROM API to get boot device
from ROM.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2019-09-16 03:09:36 +00:00 • committed by Stefano Babic
parent b890c4aede
commit b1821376ee
1 changed files with 48 additions and 0 deletions
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48
arch/arm/mach-imx/imx8m/soc.c
View file

@ -283,6 +283,54 @@ int arch_cpu_init(void)
return 0;
}
#if defined(CONFIG_IMX8MN) || defined(CONFIG_IMX8MP)
struct rom_api *g_rom_api = (struct rom_api *)0x980;
enum boot_device get_boot_device(void)
{
volatile gd_t *pgd = gd;
int ret;
u32 boot;
u16 boot_type;
u8 boot_instance;
enum boot_device boot_dev = SD1_BOOT;
ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
((uintptr_t)&boot) ^ QUERY_BT_DEV);
gd = pgd;
if (ret != ROM_API_OKAY) {
puts("ROMAPI: failure at query_boot_info\n");
return -1;
}
boot_type = boot >> 16;
boot_instance = (boot >> 8) & 0xff;
switch (boot_type) {
case BT_DEV_TYPE_SD:
boot_dev = boot_instance + SD1_BOOT;
break;
case BT_DEV_TYPE_MMC:
boot_dev = boot_instance + MMC1_BOOT;
break;
case BT_DEV_TYPE_NAND:
boot_dev = NAND_BOOT;
break;
case BT_DEV_TYPE_FLEXSPINOR:
boot_dev = QSPI_BOOT;
break;
case BT_DEV_TYPE_USB:
boot_dev = USB_BOOT;
break;
default:
break;
}
return boot_dev;
}
#endif
bool is_usb_boot(void)
{
return get_boot_device() == USB_BOOT;