Configure SPI flash devices into SPL. Add SPI boot option to spl.c. Document how to format flash for booting.
Signed-off-by: Thomas Skibo thomas-git@skibo.net --- .../dts/hifive-unmatched-a00-u-boot.dtsi | 11 +++++++ board/sifive/unmatched/spl.c | 3 ++ configs/sifive_unmatched_defconfig | 6 ++++ doc/board/sifive/unmatched.rst | 29 +++++++++++++++++++ 4 files changed, 49 insertions(+)
diff --git a/arch/riscv/dts/hifive-unmatched-a00-u-boot.dtsi b/arch/riscv/dts/hifive-unmatched-a00-u-boot.dtsi index c5475aa149..1ee8ab1868 100644 --- a/arch/riscv/dts/hifive-unmatched-a00-u-boot.dtsi +++ b/arch/riscv/dts/hifive-unmatched-a00-u-boot.dtsi @@ -16,6 +16,10 @@ u-boot,dm-spl; };
+ config { + u-boot,spl-payload-offset = <0x105000>; /* loader2 @1044KB */ + }; + hfclk { u-boot,dm-spl; }; @@ -30,6 +34,13 @@ clocks = <&rtcclk>; };
+&qspi0 { + u-boot,dm-spl; + flash@0 { + u-boot,dm-spl; + }; +}; + &spi0 { mmc@0 { u-boot,dm-spl; diff --git a/board/sifive/unmatched/spl.c b/board/sifive/unmatched/spl.c index d5663274cd..7c0beedc08 100644 --- a/board/sifive/unmatched/spl.c +++ b/board/sifive/unmatched/spl.c @@ -22,6 +22,7 @@ #define GEM_PHY_RESET SIFIVE_GENERIC_GPIO_NR(0, 12)
#define MODE_SELECT_REG 0x1000 +#define MODE_SELECT_SPI 0x6 #define MODE_SELECT_SD 0xb #define MODE_SELECT_MASK GENMASK(3, 0)
@@ -123,6 +124,8 @@ u32 spl_boot_device(void) u32 boot_device = mode_select & MODE_SELECT_MASK;
switch (boot_device) { + case MODE_SELECT_SPI: + return BOOT_DEVICE_SPI; case MODE_SELECT_SD: return BOOT_DEVICE_MMC1; default: diff --git a/configs/sifive_unmatched_defconfig b/configs/sifive_unmatched_defconfig index 1dde98e0ae..28deb1f481 100644 --- a/configs/sifive_unmatched_defconfig +++ b/configs/sifive_unmatched_defconfig @@ -6,6 +6,7 @@ CONFIG_SPL_DM_SPI=y CONFIG_DEFAULT_DEVICE_TREE="hifive-unmatched-a00" CONFIG_SPL_MMC_SUPPORT=y CONFIG_SPL=y +CONFIG_SPL_SPI_FLASH_SUPPORT=y CONFIG_SPL_SPI_SUPPORT=y CONFIG_AHCI=y CONFIG_TARGET_SIFIVE_UNMATCHED=y @@ -20,7 +21,9 @@ CONFIG_DISPLAY_CPUINFO=y CONFIG_DISPLAY_BOARDINFO=y CONFIG_DISPLAY_BOARDINFO_LATE=y CONFIG_SPL_SEPARATE_BSS=y +CONFIG_SPL_DM_SPI_FLASH=y CONFIG_SPL_DM_RESET=y +CONFIG_SPL_SPI_LOAD=y CONFIG_SPL_YMODEM_SUPPORT=y CONFIG_CMD_EEPROM=y CONFIG_CMD_MEMINFO=y @@ -28,10 +31,13 @@ CONFIG_CMD_PWM=y CONFIG_CMD_GPT_RENAME=y CONFIG_CMD_PCI=y CONFIG_CMD_USB=y +CONFIG_USE_ENV_SPI_BUS=y +CONFIG_ENV_SPI_BUS=1 CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_SCSI_AHCI=y CONFIG_AHCI_PCI=y CONFIG_SPL_CLK=y +CONFIG_SPI_FLASH_ISSI=y CONFIG_E1000=y CONFIG_NVME=y CONFIG_PCI=y diff --git a/doc/board/sifive/unmatched.rst b/doc/board/sifive/unmatched.rst index 6b024f07f6..387785d76b 100644 --- a/doc/board/sifive/unmatched.rst +++ b/doc/board/sifive/unmatched.rst @@ -534,3 +534,32 @@ Sample boot log from HiFive Unmatched board OpenEmbedded nodistro.0 unmatched ttySIF0
unmatched login: + + +Booting from SPI +---------------- + +Use Building steps from "Booting from uSD using U-Boot SPL" section. + +Partition the SPI in Linux via mtdblock. + +.. code-block:: none + + sgdisk --clear -a 1 \ + --new=1:40:2087 --change-name=1:spl --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \ + --new=2:2088:10279 --change-name=2:uboot --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \ + --new=3:10280:10535 --change-name=3:env --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \ + /dev/mtdblock0 + +Write U-boot SPL and U-boot to their partitions. + +.. code-block:: none + + dd if=u-boot-spl.bin of=/dev/mtdblock0 bs=4096 seek=5 conv=sync + dd if=u-boot.itb of=/dev/mtdblock0 bs=4096 seek=261 conv=sync + +Power off the board. + +Change DIP switches MSEL[3:0] to 0110. + +Power up the board.