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imx8: add boot device detection

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Add get_boot_device to detect boot device.
Add print_bootinfo to print the boot device info.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan 2018-10-18 14:28:19 +02:00 committed by Stefano Babic
parent 60d33fcd19
commit 8aa1505b59
2 changed files with 95 additions and 0 deletions
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10
arch/arm/include/asm/arch-imx8/sys_proto.h Normal file
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@ -0,0 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2018 NXP
*/
#include <asm/mach-imx/sys_proto.h>
#include <linux/types.h>
enum boot_device get_boot_device(void);
int print_bootinfo(void);

85
arch/arm/mach-imx/imx8/cpu.c
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@ -11,8 +11,10 @@
#include <dm/uclass.h>
#include <errno.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch-imx/cpu.h>
#include <asm/armv8/cpu.h>
#include <asm/mach-imx/boot_mode.h>
DECLARE_GLOBAL_DATA_PTR;
@ -91,3 +93,86 @@ int print_cpuinfo(void)
return 0;
}
#endif
int print_bootinfo(void)
{
enum boot_device bt_dev = get_boot_device();
puts("Boot: ");
switch (bt_dev) {
case SD1_BOOT:
puts("SD0\n");
break;
case SD2_BOOT:
puts("SD1\n");
break;
case SD3_BOOT:
puts("SD2\n");
break;
case MMC1_BOOT:
puts("MMC0\n");
break;
case MMC2_BOOT:
puts("MMC1\n");
break;
case MMC3_BOOT:
puts("MMC2\n");
break;
case FLEXSPI_BOOT:
puts("FLEXSPI\n");
break;
case SATA_BOOT:
puts("SATA\n");
break;
case NAND_BOOT:
puts("NAND\n");
break;
case USB_BOOT:
puts("USB\n");
break;
default:
printf("Unknown device %u\n", bt_dev);
break;
}
return 0;
}
enum boot_device get_boot_device(void)
{
enum boot_device boot_dev = SD1_BOOT;
sc_rsrc_t dev_rsrc;
sc_misc_get_boot_dev(-1, &dev_rsrc);
switch (dev_rsrc) {
case SC_R_SDHC_0:
boot_dev = MMC1_BOOT;
break;
case SC_R_SDHC_1:
boot_dev = SD2_BOOT;
break;
case SC_R_SDHC_2:
boot_dev = SD3_BOOT;
break;
case SC_R_NAND:
boot_dev = NAND_BOOT;
break;
case SC_R_FSPI_0:
boot_dev = FLEXSPI_BOOT;
break;
case SC_R_SATA_0:
boot_dev = SATA_BOOT;
break;
case SC_R_USB_0:
case SC_R_USB_1:
case SC_R_USB_2:
boot_dev = USB_BOOT;
break;
default:
break;
}
return boot_dev;
}