diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-02-27 17:01:20 +0100 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-12 16:09:13 +0200 |
| commit | 9a2ba2838bda7baef73b0a4852918415a5d1d442 (patch) | |
| tree | 8c826666120ebba3a00db716d5cff3c27a9fe669 /arch/arm/mach-stm32mp/include | |
| parent | 4633fd51c5d7f355be792d795467a9222be96c48 (diff) | |
stm32mp1: support forced boot mode
The boot mode can be forced by key press
or by TAMP register, requested in kernel by syscon-reboot-mode
tamp: tamp@5c00a000 {
compatible = "simple-bus", "syscon", "simple-mfd";
reg = <0x5c00a000 0x400>;
reboot-mode {
compatible = "syscon-reboot-mode";
offset = <0x150>; /* reg20 */
mask = <0xff>;
mode-normal = <0>;
mode-fastboot = <0x1>;
mode-recovery = <0x2>;
mode-stm32cubeprogrammer = <0x3>;
mode-ums_mmc0 = <0x10>;
mode-ums_mmc1 = <0x11>;
mode-ums_mmc2 = <0x12>;
};
};
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'arch/arm/mach-stm32mp/include')
| -rw-r--r-- | arch/arm/mach-stm32mp/include/mach/stm32.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h index f2ab026a5a4..da23af0a64e 100644 --- a/arch/arm/mach-stm32mp/include/mach/stm32.h +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h @@ -92,6 +92,17 @@ enum boot_device { #define TAMP_BOOT_MODE_SHIFT 8 #define TAMP_BOOT_DEVICE_MASK GENMASK(7, 4) #define TAMP_BOOT_INSTANCE_MASK GENMASK(3, 0) +#define TAMP_BOOT_FORCED_MASK GENMASK(7, 0) + +enum forced_boot_mode { + BOOT_NORMAL = 0x00, + BOOT_FASTBOOT = 0x01, + BOOT_RECOVERY = 0x02, + BOOT_STM32PROG = 0x03, + BOOT_UMS_MMC0 = 0x10, + BOOT_UMS_MMC1 = 0x11, + BOOT_UMS_MMC2 = 0x12, +}; /* offset used for BSEC driver: misc_read and misc_write */ #define STM32_BSEC_SHADOW_OFFSET 0x0 |