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rockchip: rock-pi-4: Use SDMA to boost eMMC performance

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Enable the use of SDMA mode to boost eMMC performance on ROCK Pi 4.
Also add missing flags to indicate the supported MMC modes.

Using mmc read command to read 32 MiB data shows following improvement:

  => time mmc read 10000000 2000 10000

Before: time: 3.178 seconds
After: time: 0.402 seconds

This also enables CONFIG_SPL_FIT_SIGNATURE option to help discover
any possible future issue with loading TF-A into DRAM/SRAM.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2023-05-17 18:40:41 +00:00 committed by Kever Yang
parent cf777572ca
commit 6e2b8344d6
2 changed files with 8 additions and 0 deletions
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6
arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi
View file

@ -12,6 +12,12 @@
};
};
&sdhci {
cap-mmc-highspeed;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
};
&vdd_log {
regulator-init-microvolt = <950000>;
};

2
configs/rock-pi-4-rk3399_defconfig
View file

@ -19,6 +19,7 @@ CONFIG_SYS_LOAD_ADDR=0x800800
CONFIG_PCI=y
CONFIG_DEBUG_UART=y
# CONFIG_ANDROID_BOOT_IMAGE is not set
CONFIG_SPL_FIT_SIGNATURE=y
CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-rock-pi-4a.dtb"
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_MISC_INIT_R=y
@ -56,6 +57,7 @@ CONFIG_ROCKCHIP_EFUSE=y
CONFIG_MMC_DW=y
CONFIG_MMC_DW_ROCKCHIP=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_SDMA=y
CONFIG_MMC_SDHCI_ROCKCHIP=y
CONFIG_ETH_DESIGNWARE=y
CONFIG_GMAC_ROCKCHIP=y