diff options
Diffstat (limited to 'package/boot/uboot-mediatek/patches/312-mt7622-select-rootdisk.patch')
| -rw-r--r-- | package/boot/uboot-mediatek/patches/312-mt7622-select-rootdisk.patch | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/package/boot/uboot-mediatek/patches/312-mt7622-select-rootdisk.patch b/package/boot/uboot-mediatek/patches/312-mt7622-select-rootdisk.patch new file mode 100644 index 00000000000..70cbf6b4630 --- /dev/null +++ b/package/boot/uboot-mediatek/patches/312-mt7622-select-rootdisk.patch @@ -0,0 +1,141 @@ +--- a/board/mediatek/mt7622/mt7622_rfb.c ++++ b/board/mediatek/mt7622/mt7622_rfb.c +@@ -11,7 +11,9 @@ + #include <env.h> + #include <init.h> + #include <asm/global_data.h> ++#include <asm/io.h> + #include <linux/delay.h> ++#include <linux/libfdt.h> + + #ifndef CONFIG_RESET_BUTTON_LABEL + #define CONFIG_RESET_BUTTON_LABEL "reset" +@@ -22,10 +24,43 @@ + #include <nmbm/nmbm.h> + #include <nmbm/nmbm-mtd.h> + ++#define MT7622_TOPRGUSTRAP_PAR 0x10212060 ++#define MT7622_BOOT_SEQ_MASK 0x18 ++#define MT7622_BOOT_SEQ_SHIFT 3 ++#define MT7622_BOOT_SEQ_NOR_EMMC_SDXC 0x0 ++#define MT7622_BOOT_SEQ_SPI_NAND_EMMC_SDXC 0x1 ++#define MT7622_BOOT_SEQ_NAND_EMMC_SDXC 0x2 ++#define MT7622_BOOT_SEQ_SDXC_EMMC_NAND 0x3 ++ ++#define MT7622_GPIO_MODE0 0x10211300 ++#define MT7622_GPIO_NAND_MODE_MASK 0x00f00000 ++#define MT7622_GPIO_NAND_MODE_SHIFT 20 ++#define MT7622_GPIO_NAND_MODE_EMMC 0x2 ++#define MT7622_GPIO_RGMII_MODE_MASK 0x0000f000 ++#define MT7622_GPIO_RGMII_MODE_SHIFT 12 ++#define MT7622_GPIO_RGMII_MODE_SDCX 0x2 ++#define MT7622_GPIO_SPI_MODE_MASK 0x00000f00 ++#define MT7622_GPIO_SPI_MODE_SHIFT 8 ++#define MT7622_GPIO_SPI_MODE_NAND 0x2 ++ ++#define MT7622_MSDC_INT 0x1124000C ++#define MT7622_MSDC_INT_BD_CS_ERR 0x200 ++ + DECLARE_GLOBAL_DATA_PTR; + ++static int gpio_mode0; ++static int msdc_int; ++ + int board_init(void) + { ++ /* ++ * Save content of GPIO_MODE0 as left behind by the BootROM. ++ * Also grab MSDC1 INT status to see if BootROM has been reading ++ * from SD card. ++ * Together this will allow to infer the device used for booting. ++ */ ++ gpio_mode0 = readl(MT7622_GPIO_MODE0); ++ msdc_int = readl(MT7622_MSDC_INT); + return 0; + } + +@@ -83,3 +118,84 @@ int board_nmbm_init(void) + + return 0; + } ++ ++int ft_system_setup(void *blob, struct bd_info *bd) ++{ ++ bool pinctrl_set_mmc = false; ++ bool pinctrl_set_snfi = false; ++ bool pinctrl_set_emmc = false; ++ bool msdc_bd_cs_err = false; ++ ++ const u32 *media_handle_p; ++ int chosen, len, ret; ++ const char *media; ++ u32 media_handle, strap; ++ ++ if ((gpio_mode0 & MT7622_GPIO_RGMII_MODE_MASK) >> ++ MT7622_GPIO_RGMII_MODE_SHIFT == MT7622_GPIO_RGMII_MODE_SDCX) ++ pinctrl_set_mmc = true; ++ ++ if ((gpio_mode0 & MT7622_GPIO_SPI_MODE_MASK) >> ++ MT7622_GPIO_SPI_MODE_SHIFT == MT7622_GPIO_SPI_MODE_NAND) ++ pinctrl_set_snfi = true; ++ ++ if ((gpio_mode0 & MT7622_GPIO_NAND_MODE_MASK) >> ++ MT7622_GPIO_NAND_MODE_SHIFT == MT7622_GPIO_NAND_MODE_EMMC) ++ pinctrl_set_emmc = true; ++ ++ if (msdc_int & MT7622_MSDC_INT_BD_CS_ERR) ++ msdc_bd_cs_err = true; ++ ++ strap = readl(MT7622_TOPRGUSTRAP_PAR); ++ strap &= MT7622_BOOT_SEQ_MASK; ++ strap >>= MT7622_BOOT_SEQ_SHIFT; ++ switch (strap) { ++ case MT7622_BOOT_SEQ_NOR_EMMC_SDXC: ++ if (!pinctrl_set_emmc) ++ media = "rootdisk-nor"; ++ else if (pinctrl_set_mmc) ++ media = "rootdisk-emmc"; ++ else ++ media = "rootdisk-sd"; ++ break ++ ;; ++ case MT7622_BOOT_SEQ_SPI_NAND_EMMC_SDXC: ++ if (pinctrl_set_snfi) ++ media = "rootdisk-snfi"; ++ else if (pinctrl_set_emmc) ++ media = "rootdisk-emmc"; ++ else ++ media = "rootdisk-sd"; ++ break ++ ;; ++ case MT7622_BOOT_SEQ_NAND_EMMC_SDXC: ++ case MT7622_BOOT_SEQ_SDXC_EMMC_NAND: ++ if (!pinctrl_set_emmc && pinctrl_set_mmc) ++ media = "rootdisk-nand"; ++ else if (pinctrl_set_emmc) ++ media = "rootdisk-emmc"; ++ else ++ media = "rootdisk-sd"; ++ break ++ ;; ++ } ++ ++ chosen = fdt_path_offset(blob, "/chosen"); ++ if (chosen <= 0) ++ return 0; ++ ++ media_handle_p = fdt_getprop(blob, chosen, media, &len); ++ if (media_handle_p <= 0 || len != 4) ++ return 0; ++ ++ media_handle = *media_handle_p; ++ ret = fdt_setprop(blob, chosen, "rootdisk", &media_handle, sizeof(media_handle)); ++ if (ret) { ++ printf("cannot set media phandle %s as rootdisk /chosen node\n", media); ++ return ret; ++ } ++ ++ printf("set /chosen/rootdisk to bootrom media: %s (phandle 0x%08x)\n", media, fdt32_to_cpu(media_handle)); ++ ++ return 0; ++} |