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authorStephan Gerhold <stephan@gerhold.net>2021-08-07 15:07:22 +0200
committerTom Rini <trini@konsulko.com>2021-09-01 19:25:37 -0400
commitf64011e11e283b34b6792165a36c42b8241f2a24 (patch)
tree795ef40ff62a7f39088d0f5f04842b6cf8c61140
parentfc9d4b123d50f95185baf37bea58b8ec499f3e66 (diff)
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board: stemmy: Add basic Fastboot support
Make use of the new drivers for ARM U8500 introduced in the U-Boot 2021.10 merge window by adding basic support for USB Fastboot with the "stemmy" board. As a first step this will always boot directly into USB Fastboot for now with the console displayed on the screen to make that obvious. Samsung uses quite strange GPT partition labels on these boards, so also add a bunch of fastboot_partition_alias_* to make this more easy to use. Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
-rw-r--r--arch/arm/dts/ste-ux500-samsung-stemmy.dts16
-rw-r--r--configs/stemmy_defconfig14
-rw-r--r--include/configs/stemmy.h27
3 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/dts/ste-ux500-samsung-stemmy.dts b/arch/arm/dts/ste-ux500-samsung-stemmy.dts
index 7e7f4c8..14be860 100644
--- a/arch/arm/dts/ste-ux500-samsung-stemmy.dts
+++ b/arch/arm/dts/ste-ux500-samsung-stemmy.dts
@@ -12,9 +12,25 @@
};
soc {
+ /* eMMC */
+ mmc@80005000 {
+ status = "okay";
+
+ arm,primecell-periphid = <0x10480180>;
+ max-frequency = <100000000>;
+ bus-width = <8>;
+
+ non-removable;
+ cap-mmc-highspeed;
+ };
+
/* Debugging console UART */
uart@80007000 {
status = "okay";
};
+
+ mcde@a0350000 {
+ status = "okay";
+ };
};
};
diff --git a/configs/stemmy_defconfig b/configs/stemmy_defconfig
index c026081..77bc5c7 100644
--- a/configs/stemmy_defconfig
+++ b/configs/stemmy_defconfig
@@ -6,6 +6,8 @@ CONFIG_NR_DRAM_BANKS=2
CONFIG_SYS_MALLOC_LEN=0x0200000
CONFIG_DEFAULT_DEVICE_TREE="ste-ux500-samsung-stemmy"
CONFIG_SYS_LOAD_ADDR=0x100000
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="run fastbootcmd"
CONFIG_SYS_CONSOLE_INFO_QUIET=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_CONFIG=y
@@ -17,5 +19,17 @@ CONFIG_CMD_PART=y
CONFIG_CMD_GETTIME=y
CONFIG_EFI_PARTITION=y
# CONFIG_NET is not set
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x18100000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
# CONFIG_MMC_HW_PARTITIONING is not set
+CONFIG_USB=y
+CONFIG_USB_MUSB_GADGET=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x04e8
+CONFIG_USB_GADGET_PRODUCT_NUM=0x685d
+CONFIG_DM_VIDEO=y
+CONFIG_SYS_WHITE_ON_BLACK=y
+CONFIG_VIDEO_MCDE_SIMPLE=y
# CONFIG_EFI_LOADER is not set
diff --git a/include/configs/stemmy.h b/include/configs/stemmy.h
index b3a17c5..b250a53 100644
--- a/include/configs/stemmy.h
+++ b/include/configs/stemmy.h
@@ -22,4 +22,31 @@
/* Generate initrd atag for downstream kernel (others are copied in stemmy.c) */
#define CONFIG_INITRD_TAG
+/* Linux does not boot if FDT / initrd is loaded to end of RAM */
+#define BOOT_ENV \
+ "fdt_high=0x6000000\0" \
+ "initrd_high=0x6000000\0"
+
+#define CONSOLE_ENV \
+ "stdin=serial\0" \
+ "stdout=serial,vidconsole\0" \
+ "stderr=serial,vidconsole\0"
+
+#define FASTBOOT_ENV \
+ "fastboot_partition_alias_boot=Kernel\0" \
+ "fastboot_partition_alias_recovery=Kernel2\0" \
+ "fastboot_partition_alias_system=SYSTEM\0" \
+ "fastboot_partition_alias_cache=CACHEFS\0" \
+ "fastboot_partition_alias_hidden=HIDDEN\0" \
+ "fastboot_partition_alias_userdata=DATAFS\0"
+
+#define BOOTCMD_ENV \
+ "fastbootcmd=echo '*** FASTBOOT MODE ***'; fastboot usb 0\0"
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ BOOT_ENV \
+ CONSOLE_ENV \
+ FASTBOOT_ENV \
+ BOOTCMD_ENV
+
#endif