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authorPeng Fan <peng.fan@nxp.com>2018-10-18 14:28:19 +0200
committerStefano Babic <sbabic@denx.de>2018-10-22 12:59:01 +0200
commit8aa1505b59159cf8f52ba7441dd9e71c3caf1ded (patch)
tree735e153d828aeccbd9776107d3977ce9fbd58f37 /arch
parent60d33fcd1976e6a25c070c62d6f1064020d686bd (diff)
imx8: add boot device detection
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/arch-imx8/sys_proto.h10
-rw-r--r--arch/arm/mach-imx/imx8/cpu.c85
2 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-imx8/sys_proto.h b/arch/arm/include/asm/arch-imx8/sys_proto.h
new file mode 100644
index 0000000000..f9a3016132
--- /dev/null
+++ b/arch/arm/include/asm/arch-imx8/sys_proto.h
@@ -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);
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 0b841e291d..90b6ea4211 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -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;
+}