[U-Boot] [PATCH] sunxi: A64: fix default DRAM_ODT_EN symbol

Andre Przywara andre.przywara at arm.com
Wed Jul 25 00:02:31 UTC 2018


"default" lines in Kconfig are processed in order, the first hit will
stop considering subsequent lines. In the case of the DRAM_ODT_EN symbol
that means that everything following the first two lines will never be
checked:
------------
config DRAM_ODT_EN
	bool "sunxi dram odt enable"
	default n if !MACH_SUN8I_A23
	default y if MACH_SUN8I_A23
	default y if MACH_SUN8I_R40
	default y if MACH_SUN50I
------------

Assuming that the "default y" for the A64 and the R40 were a deliberate
choice, fix the Kconfig stanza to take this into account.
Also remove the now redundant lines from the respective defconfigs.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
Hi,

I would be grateful if people could test this and find out whether
enabling ODT works reliably.

Thanks!
Andre.

 arch/arm/mach-sunxi/Kconfig         | 2 +-
 configs/Bananapi_M2_Ultra_defconfig | 1 -
 configs/amarula_a64_relic_defconfig | 1 -
 configs/bananapi_m2_berry_defconfig | 1 -
 configs/sopine_baseboard_defconfig  | 1 -
 5 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 678e33dd40..7ff0347e20 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -405,10 +405,10 @@ config DRAM_ZQ
 
 config DRAM_ODT_EN
 	bool "sunxi dram odt enable"
-	default n if !MACH_SUN8I_A23
 	default y if MACH_SUN8I_A23
 	default y if MACH_SUN8I_R40
 	default y if MACH_SUN50I
+	default n
 	---help---
 	Select this to enable dram odt (on die termination).
 
diff --git a/configs/Bananapi_M2_Ultra_defconfig b/configs/Bananapi_M2_Ultra_defconfig
index edcbb16cf6..914ca09708 100644
--- a/configs/Bananapi_M2_Ultra_defconfig
+++ b/configs/Bananapi_M2_Ultra_defconfig
@@ -4,7 +4,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN8I_R40=y
 CONFIG_DRAM_CLK=576
 CONFIG_DRAM_ZQ=3881979
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC0_CD_PIN="PH13"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_DEFAULT_DEVICE_TREE="sun8i-r40-bananapi-m2-ultra"
diff --git a/configs/amarula_a64_relic_defconfig b/configs/amarula_a64_relic_defconfig
index b72cbfabc6..9ab4c0c1de 100644
--- a/configs/amarula_a64_relic_defconfig
+++ b/configs/amarula_a64_relic_defconfig
@@ -3,7 +3,6 @@ CONFIG_ARCH_SUNXI=y
 CONFIG_SPL=y
 CONFIG_MACH_SUN50I=y
 CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 # CONFIG_VIDEO_DE2 is not set
 CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-amarula-relic"
diff --git a/configs/bananapi_m2_berry_defconfig b/configs/bananapi_m2_berry_defconfig
index 9d75108d04..0ebb1c38da 100644
--- a/configs/bananapi_m2_berry_defconfig
+++ b/configs/bananapi_m2_berry_defconfig
@@ -4,7 +4,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN8I_R40=y
 CONFIG_DRAM_CLK=576
 CONFIG_DRAM_ZQ=3881979
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC0_CD_PIN="PH13"
 CONFIG_DEFAULT_DEVICE_TREE="sun8i-v40-bananapi-m2-berry"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/sopine_baseboard_defconfig b/configs/sopine_baseboard_defconfig
index c79c111b5d..1d0b3fbbc7 100644
--- a/configs/sopine_baseboard_defconfig
+++ b/configs/sopine_baseboard_defconfig
@@ -6,7 +6,6 @@ CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y
 CONFIG_SUNXI_DRAM_LPDDR3_STOCK=y
 CONFIG_DRAM_CLK=552
 CONFIG_DRAM_ZQ=3881949
-CONFIG_DRAM_ODT_EN=y
 CONFIG_MMC0_CD_PIN=""
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_SPL_SPI_SUNXI=y
-- 
2.14.4



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