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sunxi: H616: dram: drop default TPR6 Kconfig value

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CONFIG_DRAM_SUNXI_TPR6 is the only DRAM config parameter that has a
non-zero default value. Since we need to provide a value for all the
other parameters anyway, avoiding TPR6 makes no real difference.
To make matters worse, TPR6 is a compound value covering multiple DRAM
types, but also spans over three SoCs, which makes it hard to find one
good default value.

Drop the default from Kconfig, and put some explicit values in the
defconfigs for the few boards that were relying on the default so far.
The value is taken from one BSP, only the lower byte matters anyway for
those boards, all using DDR3 DRAM.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Paul Kocialkowski <paulk@sys-base.io>
This commit is contained in:
Andre Przywara
2026-04-27 15:29:50 +02:00
parent 5a24cc0740
commit 7ad8e387d6
5 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/mach-sunxi/Kconfig
View File

@@ -151,7 +151,6 @@ config DRAM_SUNXI_TPR3
config DRAM_SUNXI_TPR6
hex "DRAM TPR6 parameter"
default 0x3300c080
help
TPR6 value from vendor DRAM settings.

1
configs/orangepi_zero2_defconfig
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@@ -5,6 +5,7 @@ CONFIG_SPL=y
CONFIG_DRAM_SUNXI_DX_ODT=0x08080808
CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
CONFIG_DRAM_SUNXI_CA_DRI=0x0e0e
CONFIG_DRAM_SUNXI_TPR6=0x33808080
CONFIG_DRAM_SUNXI_TPR10=0xf83438
CONFIG_MACH_SUN50I_H616=y
CONFIG_SUNXI_DRAM_H616_DDR3_1333=y

1
configs/transpeed-8k618-t_defconfig
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@@ -7,6 +7,7 @@ CONFIG_DRAM_SUNXI_DX_ODT=0x03030303
CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
CONFIG_DRAM_SUNXI_CA_DRI=0x1f12
CONFIG_DRAM_SUNXI_TPR0=0xc0001002
CONFIG_DRAM_SUNXI_TPR6=0x33808080
CONFIG_DRAM_SUNXI_TPR10=0x2f1107
CONFIG_DRAM_SUNXI_TPR11=0xddddcccc
CONFIG_DRAM_SUNXI_TPR12=0xeddc7665

1
configs/x96_mate_defconfig
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@@ -6,6 +6,7 @@ CONFIG_DRAM_SUNXI_DX_ODT=0x03030303
CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
CONFIG_DRAM_SUNXI_CA_DRI=0x1c12
CONFIG_DRAM_SUNXI_TPR0=0xc0000c05
CONFIG_DRAM_SUNXI_TPR6=0x33808080
CONFIG_DRAM_SUNXI_TPR10=0x2f0007
CONFIG_DRAM_SUNXI_TPR11=0xffffdddd
CONFIG_DRAM_SUNXI_TPR12=0xfedf7557

1
configs/x96q_defconfig
View File

@@ -8,6 +8,7 @@ CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
CONFIG_DRAM_SUNXI_CA_DRI=0x1f12
CONFIG_DRAM_SUNXI_TPR0=0xc0001002
CONFIG_DRAM_SUNXI_TPR2=0x00000100
CONFIG_DRAM_SUNXI_TPR6=0x33808080
CONFIG_DRAM_SUNXI_TPR10=0x002f0107
CONFIG_DRAM_SUNXI_TPR11=0xddddcccc
CONFIG_DRAM_SUNXI_TPR12=0xeddc7665