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From: Pratyush Yadav
To: Chris Packham , Jagan Teki
, Vignesh R , Ryder Lee
, Weijie Gao ,
Chunfeng Yun , GSS_MTK_Uboot_upstream
,
CC: Pratyush Yadav , Takahiro Kuwano
, Sean Anderson
Subject: [PATCH v9 08/28] arm: mvebu: x530: Use tiny SPI NOR
Date: Wed, 5 May 2021 15:11:18 +0530
Message-ID: <20210505094138.30805-9-p.yadav@ti.com>
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The SPI NOR core will get Octal DTR in following commits. This has
presented a significant challenge of keeping the SPL size in check on
the x530 platform.
On a previous iteration of the series, adding a set of compile-time
switches got the build working. But rebasing on the latest master breaks
the build again. We are fighting a losing battle here. Every addition to
either the SPI NOR core in the future, or any other core part of U-Boot
will potentially lead to the SPL size going beyond the limit and the
build failing.
To combat this we will have to keep adding more and more compile-time
switches, increasing the complexity of the code in the process. This is
not sustainable. So use tiny SPI NOR instead. It is designed with
size-limited SPL binaries in mind, and will afford us more breathing
room.
To enable tiny SPI NOR, CONFIG_SPI_FLASH_BAR has to be disabled.
Signed-off-by: Pratyush Yadav
---
configs/x530_defconfig | 1 -
1 file changed, 1 deletion(-)
diff --git a/configs/x530_defconfig b/configs/x530_defconfig
index 890c94b5c1..0570dbe9ea 100644
--- a/configs/x530_defconfig
+++ b/configs/x530_defconfig
@@ -62,7 +62,6 @@ CONFIG_SYS_NAND_USE_FLASH_BBT=y
CONFIG_NAND_PXA3XX=y
CONFIG_SF_DEFAULT_BUS=1
CONFIG_SF_DEFAULT_SPEED=50000000
-CONFIG_SPI_FLASH_BAR=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_STMICRO=y
CONFIG_SPI_FLASH_SST=y