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| author | Clément Bœsch <u@pkh.me> | 2017-07-23 20:14:23 (GMT) |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2017-08-11 10:13:44 (GMT) |
| commit | 8792a64d87708139bc0cf8b48d4a580a39167473 (patch) | |
| tree | 56990a8669e037d4096b38fda05c3ec47539cd3a /configs/orangepi_zero_defconfig | |
| parent | 335d30050b0d02444c9297f7a9b0cbf75dce847f (diff) | |
| download | u-boot-8792a64d87708139bc0cf8b48d4a580a39167473.tar.xz | |
sunxi: reduce Orange Pi Zero DRAM clock speed
Using `fel-boot-lima-memtester-on-orange-pi-pc 672` on an Orange Pi
without heatsink results in the following error after a few minutes:
WRITE FAILURE: 0x00200000 != 0xffdfffff at offset 0x0137f47c (bitflip).
Also, the constructor repository (github/orangepi-xunlong) seems to
contain that 624 Mhz clock speed in its u-boot fork. It may be that 672
Mhz is the advertized overclocked speed.
According to http://linux-sunxi.org/Orange_Pi_PC#DRAM_clock_speed_limit
it may be worth decreasing that value with other Orange Pi boards.
See also e7d6aa0b74b7f4d08ee68da8a586c76c761348e2.
Signed-off-by: Clément Bœsch <u@pkh.me>
[Add s-o-b line]
Signed-off-by: Jagan Teki <jagan@openedev.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Diffstat (limited to 'configs/orangepi_zero_defconfig')
| -rw-r--r-- | configs/orangepi_zero_defconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configs/orangepi_zero_defconfig b/configs/orangepi_zero_defconfig index c650ce8..16a3929 100644 --- a/configs/orangepi_zero_defconfig +++ b/configs/orangepi_zero_defconfig @@ -2,7 +2,7 @@ CONFIG_ARM=y CONFIG_ARCH_SUNXI=y CONFIG_SPL_SPI_FLASH_SUPPORT=y CONFIG_MACH_SUN8I_H3=y -CONFIG_DRAM_CLK=672 +CONFIG_DRAM_CLK=624 CONFIG_DRAM_ZQ=3881979 CONFIG_DRAM_ODT_EN=y # CONFIG_VIDEO_DE2 is not set |