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arm: mach-k3: am6_init: Add support for USB boot mode

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Add support for identifying USB host and device boot modes

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
This commit is contained in:
Faiz Abbas 2020-08-03 11:35:10 +05:30 committed by Lokesh Vutla
parent 403fc5c9cf
commit 897e83f0a5
3 changed files with 9 additions and 1 deletions
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5
arch/arm/mach-k3/am6_init.c
View File

@ -333,6 +333,11 @@ static u32 __get_primary_bootmedia(u32 devstat)
CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT;
if (port == 0x1)
bootmode = BOOT_DEVICE_MMC2;
} else if (bootmode == BOOT_DEVICE_DFU) {
u32 mode = (devstat & CTRLMMR_MAIN_DEVSTAT_USB_MODE_MASK) >>
CTRLMMR_MAIN_DEVSTAT_USB_MODE_SHIFT;
if (mode == 0x2)
bootmode = BOOT_DEVICE_USB;
}
return bootmode;

2
arch/arm/mach-k3/include/mach/am6_hardware.h
View File

@ -25,6 +25,8 @@
#define CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT 14
#define CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_MASK GENMASK(17, 17)
#define CTRLMMR_MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT 12
#define CTRLMMR_MAIN_DEVSTAT_USB_MODE_SHIFT 9
#define CTRLMMR_MAIN_DEVSTAT_USB_MODE_MASK GENMASK(10, 9)
#define WKUP_CTRL_MMR0_BASE 0x43000000
#define MCU_CTRL_MMR0_BASE 0x40f00000

3
arch/arm/mach-k3/include/mach/am6_spl.h
View File

@ -14,7 +14,8 @@
#define BOOT_DEVICE_I2C 0x05
#define BOOT_DEVICE_MMC2 0x06
#define BOOT_DEVICE_ETHERNET 0x07
#define BOOT_DEVICE_USB 0x08
#define BOOT_DEVICE_DFU 0x08
#define BOOT_DEVICE_USB 0x408
#define BOOT_DEVICE_PCIE 0x09
#define BOOT_DEVICE_UART 0x0a
#define BOOT_DEVICE_NAND 0x0c