From: Jonas Karlman Date: Sat, 6 May 2023 17:41:11 +0000 (+0000) Subject: mmc: rockchip_sdhci: Disable DMA mode using a device tree property X-Git-Url: http://git.dujemihanovic.xyz/img/%7B%7B%20%28.OutputFormats.Get?a=commitdiff_plain;h=3b804b370dd8027a6d450c447247855a149ea2ec;p=u-boot.git mmc: rockchip_sdhci: Disable DMA mode using a device tree property Loading part of TF-A into SRAM from eMMC using DMA fails on RK3399 similar to other Rockchip SoCs. Checksum validation fails with: ## Checking hash(es) for Image atf-2 ... sha256 error! Bad hash value for 'hash' hash node in 'atf-2' image node spl_load_simple_fit: can't load image loadables index 1 (ret = -1) mmc_load_image_raw_sector: mmc block read error SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ### Add a device tree property, u-boot,spl-fifo-mode, to control when the rockchip_sdhci driver should disable the use of DMA and fallback on PIO mode. Same device tree property is used by the rockchip_dw_mmc driver. In commit 2cc6cde647e2 ("mmc: rockchip_sdhci: Limit number of blocks read in a single command") the DMA mode was disabled using a CONFIG option on RK3588. Revert that and instead disable DMA using the device tree property for all RK3588 boards, also apply similar workaround for all RK3399 boards. Fixes: 2cc6cde647e2 ("mmc: rockchip_sdhci: Limit number of blocks read in a single command") Signed-off-by: Jonas Karlman Reviewed-by: Kever Yang Tested-by: Quentin Schulz # RK3399 Puma, RK3588 Tiger --- diff --git a/arch/arm/dts/rk3399-u-boot.dtsi b/arch/arm/dts/rk3399-u-boot.dtsi index e677ae678d..3423b882c4 100644 --- a/arch/arm/dts/rk3399-u-boot.dtsi +++ b/arch/arm/dts/rk3399-u-boot.dtsi @@ -120,6 +120,7 @@ &sdhci { max-frequency = <200000000>; bootph-all; + u-boot,spl-fifo-mode; }; &sdmmc { diff --git a/arch/arm/dts/rk3588s-u-boot.dtsi b/arch/arm/dts/rk3588s-u-boot.dtsi index cd7e6cb50e..922cae3f09 100644 --- a/arch/arm/dts/rk3588s-u-boot.dtsi +++ b/arch/arm/dts/rk3588s-u-boot.dtsi @@ -153,6 +153,7 @@ &sdhci { bootph-pre-ram; + u-boot,spl-fifo-mode; }; &uart2 { diff --git a/configs/rock5b-rk3588_defconfig b/configs/rock5b-rk3588_defconfig index c57de5a5be..fc76d9347d 100644 --- a/configs/rock5b-rk3588_defconfig +++ b/configs/rock5b-rk3588_defconfig @@ -60,7 +60,6 @@ CONFIG_MMC_DW=y CONFIG_MMC_DW_ROCKCHIP=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_SDMA=y -# CONFIG_SPL_MMC_SDHCI_SDMA is not set CONFIG_MMC_SDHCI_ROCKCHIP=y CONFIG_ETH_DESIGNWARE=y CONFIG_GMAC_ROCKCHIP=y diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c index 8e4a158049..285332d9f4 100644 --- a/drivers/mmc/rockchip_sdhci.c +++ b/drivers/mmc/rockchip_sdhci.c @@ -589,6 +589,14 @@ static int rockchip_sdhci_probe(struct udevice *dev) if (ret) return ret; + /* + * Disable use of DMA and force use of PIO mode in SPL to fix an issue + * where loading part of TF-A into SRAM using DMA silently fails. + */ + if (IS_ENABLED(CONFIG_SPL_BUILD) && + dev_read_bool(dev, "u-boot,spl-fifo-mode")) + host->flags &= ~USE_DMA; + /* * Reading more than 4 blocks with a single CMD18 command in PIO mode * triggers Data End Bit Error on RK3568 and RK3588. Limit to reading