From ff7d25e8db8de47dea4c6850b6a3a642a2d8befd Mon Sep 17 00:00:00 2001
From: Jagan Teki <jagan@amarulasolutions.com>
Date: Wed, 15 Jul 2020 15:39:00 +0530
Subject: [PATCH] env: Enable SPI flash env for SiFive FU540
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SPI flash device on HiFive Unleashed has 32MiB Size.
This patch adds SPI flash environment after U-Boot proper
partition with a size of 128KiB.
SPI flash partition layout(32MiB):
0 - 34 : reserved for GPT header
35 - 39 : unused
40 - 2087 : loader1 (SPL, FSBL)
2088 - 10279 : loader2 (U-Boot proper, U-Boot)
10280 - 10535 : environment
10536 - 65494 : rootfs
65528 - 65536 : distro script
Note: the loader1 must start from 40th sector even though
there are 6 free sectors prior since 40th sector is nearest
flash sector boundary.Â
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
---
arch/riscv/cpu/fu540/Kconfig | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/riscv/cpu/fu540/Kconfig b/arch/riscv/cpu/fu540/Kconfig
index e9302e87c0..2dcad8e27f 100644
--- a/arch/riscv/cpu/fu540/Kconfig
+++ b/arch/riscv/cpu/fu540/Kconfig
@@ -13,3 +13,16 @@ config SIFIVE_FU540
imply SPL_CPU_SUPPORT
imply SPL_OPENSBI
imply SPL_LOAD_FIT
+
+if ENV_IS_IN_SPI_FLASH
+
+config ENV_OFFSET
+ default 0x505000
+
+config ENV_SIZE
+ default 0x20000
+
+config ENV_SECT_SIZE
+ default 0x10000
+
+endif # ENV_IS_IN_SPI_FLASH
--
2.39.5