[PATCH v4 2/6] sifive: fu540: Add Booting from SPI

[Rick Chen]

Hi Jagan

> From: Jagan Teki [mailto:jagan at amarulasolutions.com]
> Sent: Thursday, July 02, 2020 4:03 PM
> To: Rick Jian-Zhi Chen(陳建志); Atish Patra; Palmer Dabbelt; Bin Meng; Paul Walmsley; Anup Patel; Sagar Kadam
> Cc: u-boot at lists.denx.de; linux-amarula at amarulasolutions.com; Jagan Teki; Bin Meng
> Subject: [PATCH v4 2/6] sifive: fu540: Add Booting from SPI
>
> Add booting from SPI for SiFive Unleashed board.
>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> Reviewed-by: Bin Meng <bin.meng at windriver.com>
> Tested-by: Bin Meng <bin.meng at windriver.com>
> ---
> Changes for v4:
> - drop BOARD configs
>

Can you rebase and send the whole patches of v4 again ?
When I tried to pick up others from v3, there have some conflicts.

Thanks,
Rick

>  .../dts/hifive-unleashed-a00-u-boot.dtsi      | 12 ++++++
>  configs/sifive_fu540_defconfig                |  4 ++
>  doc/board/sifive/fu540.rst                    | 41 +++++++++++++++++++
>  3 files changed, 57 insertions(+)
>
> diff --git a/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
> index 303806454b..4b2b242deb 100644
> --- a/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
> +++ b/arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
> @@ -12,6 +12,10 @@
>                 spi2 = &qspi2;
>         };
>
> +       config {
> +               u-boot,spl-payload-offset = <0x105000>; /* loader2 @1044KB */
> +       };
> +
>         hfclk {
>                 u-boot,dm-spl;
>         };
> @@ -22,6 +26,14 @@
>
>  };
>
> +&qspi0 {
> +       u-boot,dm-spl;
> +
> +       flash at 0 {
> +               u-boot,dm-spl;
> +       };
> +};
> +
>  &qspi2 {
>         mmc at 0 {
>                 u-boot,dm-spl;
> diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig index 8d412f8d6a..551d4b04a5 100644
> --- a/configs/sifive_fu540_defconfig
> +++ b/configs/sifive_fu540_defconfig
> @@ -2,9 +2,11 @@ CONFIG_RISCV=y
>  CONFIG_SPL_GPIO_SUPPORT=y
>  CONFIG_SYS_MALLOC_F_LEN=0x3000
>  CONFIG_ENV_SIZE=0x20000
> +CONFIG_SPL_DM_SPI=y
>  CONFIG_SPL_MMC_SUPPORT=y
>  CONFIG_NR_DRAM_BANKS=1
>  CONFIG_SPL=y
> +CONFIG_SPL_SPI_FLASH_SUPPORT=y
>  CONFIG_SPL_SPI_SUPPORT=y
>  CONFIG_TARGET_SIFIVE_FU540=y
>  CONFIG_ARCH_RV64I=y
> @@ -15,9 +17,11 @@ CONFIG_MISC_INIT_R=y
>  CONFIG_DISPLAY_CPUINFO=y
>  CONFIG_DISPLAY_BOARDINFO=y
>  CONFIG_SPL_SEPARATE_BSS=y
> +CONFIG_SPL_SPI_LOAD=y
>  CONFIG_SPL_YMODEM_SUPPORT=y
>  CONFIG_OF_BOARD_FIXUP=y
>  CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00"
>  CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_SPL_DM_SEQ_ALIAS=y
>  CONFIG_SPL_CLK=y
>  CONFIG_DM_MTD=y
> diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst index 739eefa669..1ce9ab14f5 100644
> --- a/doc/board/sifive/fu540.rst
> +++ b/doc/board/sifive/fu540.rst
> @@ -533,3 +533,44 @@ Sample boot log from HiFive Unleashed board
>         type:   0fc63daf-8483-4772-8e79-3d69d8477de4
>         type:   linux
>         guid:   9faa81b6-39b1-4418-af5e-89c48f29c20d
> +
> +Booting from SPI
> +----------------
> +
> +Use Building steps from "Booting from MMC using U-Boot SPL" section.
> +
> +Partition the SPI in Linux via mtdblock. (Require to boot the board in
> +SD boot mode by enabling MTD block in Linux)
> +
> +Use prebuilt image from here [1], which support to partition the SPI flash.
> +
> +.. code-block:: none
> +
> +  # sgdisk --clear \
> +  > --set-alignment=2 \
> +  > --new=1:40:2087 --change-name=1:loader1
> + --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \  >
> + --new=2:2088:10279 --change-name=2:loader2
> + --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \  >
> + --new=3:10536:65494 --change-name=3:rootfs
> + --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \  > /dev/mtdblock0
> +
> +Program the SPI (Require to boot the board in SD boot mode)
> +
> +Execute below steps on U-Boot proper,
> +
> +.. code-block:: none
> +
> +  tftpboot $kernel_addr_r u-boot-spl.bin  sf erase 0x5000 $filesize  sf
> + write $kernel_addr_r 0x5000 $filesize
> +
> +  tftpboot $kernel_addr_r u-boot.itb
> +  sf erase 0x105000 $filesize
> +  sf write $kernel_addr_r 0x105000 $filesize
> +
> +Power off the board
> +
> +Change DIP switches MSEL[3:0] are set to 0110
> +
> +Power up the board.
> +
> +[1] https://github.com/amarula/bsp-sifive
> --
> 2.25.1
>