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authorPeng Fan <Peng.Fan@freescale.com>2015-03-14 19:58:01 +0800
committerPeng Fan <Peng.Fan@freescale.com>2015-04-29 14:56:08 +0800
commit9d40a90876b287370df0a0be1c8297641a1686f4 (patch)
tree99001b39fcd5c842b2f4f306310a1f65ab4fbc42 /arch/arm
parentd2ca1e24701a6a10578a133209c8233645a5755f (diff)
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MLK-10774-24 imx:mx6 add get_boot_device
Add get_boot_device function. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv7/mx6/soc.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 9499b1a..394687f 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -640,6 +640,49 @@ const struct boot_mode soc_boot_modes[] = {
{NULL, 0},
};
+enum boot_device get_boot_device(void)
+{
+ enum boot_device boot_dev = UNKNOWN_BOOT;
+ uint soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
+ uint bt_mem_ctl = (soc_sbmr & 0x000000FF) >> 4 ;
+ uint bt_mem_type = (soc_sbmr & 0x00000008) >> 3;
+ uint bt_dev_port = (soc_sbmr & 0x00001800) >> 11;
+
+ switch (bt_mem_ctl) {
+ case 0x0:
+ if (bt_mem_type)
+ boot_dev = ONE_NAND_BOOT;
+ else
+ boot_dev = WEIM_NOR_BOOT;
+ break;
+ case 0x2:
+ boot_dev = SATA_BOOT;
+ break;
+ case 0x3:
+ if (bt_mem_type)
+ boot_dev = I2C_BOOT;
+ else
+ boot_dev = SPI_NOR_BOOT;
+ break;
+ case 0x4:
+ case 0x5:
+ boot_dev = bt_dev_port + SD1_BOOT;
+ break;
+ case 0x6:
+ case 0x7:
+ boot_dev = bt_dev_port + MMC1_BOOT;
+ break;
+ case 0x8 ... 0xf:
+ boot_dev = NAND_BOOT;
+ break;
+ default:
+ boot_dev = UNKNOWN_BOOT;
+ break;
+ }
+
+ return boot_dev;
+}
+
void s_init(void)
{
struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;