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sifive: fu540: Enable spi-nor flash support 

HiFive Unleashed A00 support is25wp256 spi-nor flash,
So enable the same and add test result log for future
reference.

Tested on SiFive FU540 board.

Thanks to Sagar for various use cases and tests.

[QUAD mode in dt with spi-tx-bus-width: <4>]
 pp opcode      = 0x34 [QUAD MODE]
 read opcode  = 0x6c  [QUAD MODE]
 erase opcode = 0x21

SPI-NOR:
1. erase entire flash: Pass
2. write entire flash: Pass
3. read entire flash: Pass
4. cmp 32MiB read back data: Pass
5. MMC: Booted Linux and dtb from mmc

[SPI MODE in dt with spi-tx-bus-width: <1>]
pp opcode     = 0x12 [SPI MODE]
read opcode  = 0xc   [SPI MODE]
erase opcode = 0x21

SPI-NOR:
1. erase entire flash: Pass
2. write entire flash: Pass
3. read entire flash: Pass
4. cmp 32MiB read back data: Pass
5. MMC: Booted Linux and dtb from mmc

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Sagar Kadam <sagar.kadam@sifive.com>
This commit is contained in:
Jagan Teki 2020-04-29 21:03:53 +05:30
parent 0edb066ce5
commit 286bcdb40f
2 changed files with 4 additions and 0 deletions
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1
arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
View File

@ -5,6 +5,7 @@
/ { / {
aliases { aliases {
spi0 = &qspi0;
spi2 = &qspi2; spi2 = &qspi2;
}; };
}; };

3
board/sifive/fu540/Kconfig
View File

@ -26,6 +26,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
imply CMD_FS_GENERIC imply CMD_FS_GENERIC
imply CMD_NET imply CMD_NET
imply CMD_PING imply CMD_PING
imply CMD_SF
imply CLK_SIFIVE imply CLK_SIFIVE
imply CLK_SIFIVE_FU540_PRCI imply CLK_SIFIVE_FU540_PRCI
imply DOS_PARTITION imply DOS_PARTITION
@ -40,6 +41,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
imply SIFIVE_SERIAL imply SIFIVE_SERIAL
imply SPI imply SPI
imply SPI_SIFIVE imply SPI_SIFIVE
imply SPI_FLASH
imply SPI_FLASH_ISSI
imply MMC imply MMC
imply MMC_SPI imply MMC_SPI
imply MMC_BROKEN_CD imply MMC_BROKEN_CD