Add the required architecture-specific lookups to enable U-boot SPL to load images from UFS storage devices on Rockchip RK3576, which has a boot ROM capable of loading the SPL image from UFS.
Signed-off-by: Alexey Charkov <[email protected]> --- arch/arm/dts/rk3576-u-boot.dtsi | 16 +++++++++++++++- arch/arm/include/asm/arch-rockchip/bootrom.h | 1 + arch/arm/mach-rockchip/rk3576/rk3576.c | 1 + arch/arm/mach-rockchip/spl-boot-order.c | 14 ++++++++++++++ 4 files changed, 31 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/rk3576-u-boot.dtsi b/arch/arm/dts/rk3576-u-boot.dtsi index dc3771b556a3..e442e94f7132 100644 --- a/arch/arm/dts/rk3576-u-boot.dtsi +++ b/arch/arm/dts/rk3576-u-boot.dtsi @@ -12,7 +12,7 @@ }; chosen { - u-boot,spl-boot-order = "same-as-spl", &sdmmc, &sdhci; + u-boot,spl-boot-order = "same-as-spl", &sdmmc, &sdhci, &ufshc; }; dmc { @@ -81,6 +81,15 @@ bootph-some-ram; }; +&gpio4 { + /* This is specifically for GPIO4_D0, which is the only 1.2V capable + * pin on RK3576 available for use as the UFS device reset, thus + * &gpio4 is required for booting from UFS on RK3576. + */ + bootph-pre-ram; + bootph-some-ram; +}; + &ioc_grf { bootph-all; }; @@ -176,6 +185,11 @@ bootph-pre-ram; }; +&ufshc { + bootph-pre-ram; + bootph-some-ram; +}; + &xin24m { bootph-all; }; diff --git a/arch/arm/include/asm/arch-rockchip/bootrom.h b/arch/arm/include/asm/arch-rockchip/bootrom.h index b15938c021d6..f9ecb6858f04 100644 --- a/arch/arm/include/asm/arch-rockchip/bootrom.h +++ b/arch/arm/include/asm/arch-rockchip/bootrom.h @@ -51,6 +51,7 @@ enum { BROM_BOOTSOURCE_SPINOR = 3, BROM_BOOTSOURCE_SPINAND = 4, BROM_BOOTSOURCE_SD = 5, + BROM_BOOTSOURCE_UFS = 7, BROM_BOOTSOURCE_I2C = 8, BROM_BOOTSOURCE_SPI = 9, BROM_BOOTSOURCE_USB = 10, diff --git a/arch/arm/mach-rockchip/rk3576/rk3576.c b/arch/arm/mach-rockchip/rk3576/rk3576.c index a1e8a7572fa4..46cf60dc77c7 100644 --- a/arch/arm/mach-rockchip/rk3576/rk3576.c +++ b/arch/arm/mach-rockchip/rk3576/rk3576.c @@ -46,6 +46,7 @@ const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = { [BROM_BOOTSOURCE_FSPI0] = "/soc/spi@2a340000/flash@0", [BROM_BOOTSOURCE_FSPI1_M1] = "/soc/spi@2a300000/flash@0", [BROM_BOOTSOURCE_SD] = "/soc/mmc@2a310000", + [BROM_BOOTSOURCE_UFS] = "/soc/ufshc@2a2d0000", }; static struct mm_region rk3576_mem_map[] = { diff --git a/arch/arm/mach-rockchip/spl-boot-order.c b/arch/arm/mach-rockchip/spl-boot-order.c index 6572dde29f65..d2dd5e10935f 100644 --- a/arch/arm/mach-rockchip/spl-boot-order.c +++ b/arch/arm/mach-rockchip/spl-boot-order.c @@ -76,6 +76,9 @@ static int spl_node_to_boot_device(int node) if (!uclass_find_device_by_of_offset(UCLASS_SPI_FLASH, node, &parent)) return BOOT_DEVICE_SPI; + if (!uclass_find_device_by_of_offset(UCLASS_UFS, node, &parent)) + return BOOT_DEVICE_UFS; + return -1; } @@ -231,6 +234,17 @@ int spl_decode_boot_device(u32 boot_device, char *buf, size_t buflen) return -ENODEV; } + if (boot_device == BOOT_DEVICE_UFS) { + ret = uclass_find_device(UCLASS_UFS, 0, &dev); + if (ret) { + debug("%s: could not find device for UFS: %d\n", + __func__, ret); + return ret; + } + + return ofnode_get_path(dev_ofnode(dev), buf, buflen); + } + #if CONFIG_IS_ENABLED(BLK) dev_num = (boot_device == BOOT_DEVICE_MMC1) ? 0 : 1; -- 2.52.0
