diff options
Diffstat (limited to 'arch/arm/mach-imx/imx8m/soc.c')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/soc.c | 181 |
1 files changed, 160 insertions, 21 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 0ae93bbf43..39802d6a79 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -28,8 +28,10 @@ #include <errno.h> #include <fdt_support.h> #include <fsl_wdog.h> +#include <fuse.h> #include <imx_sip.h> #include <linux/bitops.h> +#include <linux/bitfield.h> DECLARE_GLOBAL_DATA_PTR; @@ -533,7 +535,7 @@ static void imx_set_wdog_powerdown(bool enable) writew(enable, &wdog3->wmcr); } -static int imx8m_check_clock(void *ctx, struct event *event) +static int imx8m_check_clock(void) { struct udevice *dev; int ret; @@ -550,7 +552,7 @@ static int imx8m_check_clock(void *ctx, struct event *event) return 0; } -EVENT_SPY(EVT_DM_POST_INIT_F, imx8m_check_clock); +EVENT_SPY_SIMPLE(EVT_DM_POST_INIT_F, imx8m_check_clock); static void imx8m_setup_snvs(void) { @@ -648,19 +650,17 @@ struct rom_api *g_rom_api = (struct rom_api *)0x980; #if defined(CONFIG_IMX8M) #include <spl.h> -int spl_mmc_emmc_boot_partition(struct mmc *mmc) +int imx8m_detect_secondary_image_boot(void) { u32 *rom_log_addr = (u32 *)0x9e0; u32 *rom_log; u8 event_id; - int i, part; - - part = default_spl_mmc_emmc_boot_partition(mmc); + int i, boot_secondary = 0; /* If the ROM event log pointer is not valid. */ if (*rom_log_addr < 0x900000 || *rom_log_addr >= 0xb00000 || *rom_log_addr & 0x3) - return part; + return -EINVAL; /* Parse the ROM event ID version 2 log */ rom_log = (u32 *)(uintptr_t)(*rom_log_addr); @@ -668,7 +668,7 @@ int spl_mmc_emmc_boot_partition(struct mmc *mmc) event_id = rom_log[i] >> 24; switch (event_id) { case 0x00: /* End of list */ - return part; + return boot_secondary; /* Log entries with 1 parameter, skip 1 */ case 0x80: /* Start to perform the device initialization */ case 0x81: /* The boot device initialization completes */ @@ -686,26 +686,89 @@ int spl_mmc_emmc_boot_partition(struct mmc *mmc) continue; /* Boot from the secondary boot image */ case 0x51: - /* - * Swap the eMMC boot partitions in case there was a - * fallback event (i.e. primary image was corrupted - * and that corruption was recognized by the BootROM), - * so the SPL loads the rest of the U-Boot from the - * correct eMMC boot partition, since the BootROM - * leaves the boot partition set to the corrupted one. - */ - if (part == 1) - part = 2; - else if (part == 2) - part = 1; + boot_secondary = 1; continue; default: continue; } } + return boot_secondary; +} + +int spl_mmc_emmc_boot_partition(struct mmc *mmc) +{ + int part, ret; + + part = default_spl_mmc_emmc_boot_partition(mmc); + if (part == 0) + return part; + + ret = imx8m_detect_secondary_image_boot(); + if (ret < 0) { + printf("Could not get boot partition! Using %d\n", part); + return part; + } + + if (ret == 1) { + /* + * Swap the eMMC boot partitions in case there was a + * fallback event (i.e. primary image was corrupted + * and that corruption was recognized by the BootROM), + * so the SPL loads the rest of the U-Boot from the + * correct eMMC boot partition, since the BootROM + * leaves the boot partition set to the corrupted one. + */ + if (part == 1) + part = 2; + else if (part == 2) + part = 1; + } + return part; } + +int boot_mode_getprisec(void) +{ + return !!imx8m_detect_secondary_image_boot(); +} +#endif + +#if defined(CONFIG_IMX8MN) || defined(CONFIG_IMX8MP) +#define IMG_CNTN_SET1_OFFSET GENMASK(22, 19) +unsigned long arch_spl_mmc_get_uboot_raw_sector(struct mmc *mmc, + unsigned long raw_sect) +{ + u32 val, offset; + + if (fuse_read(2, 1, &val)) { + debug("Error reading fuse!\n"); + return raw_sect; + } + + val = FIELD_GET(IMG_CNTN_SET1_OFFSET, val); + if (val > 10) { + debug("Secondary image boot disabled!\n"); + return raw_sect; + } + + if (val == 0) + offset = SZ_4M; + else if (val == 1) + offset = SZ_2M; + else if (val == 2) + offset = SZ_1M; + else /* flash.bin offset = 1 MiB * 2^n */ + offset = SZ_1M << val; + + offset /= 512; + offset -= CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET; + + if (imx8m_detect_secondary_image_boot()) + raw_sect += offset; + + return raw_sect; +} #endif bool is_usb_boot(void) @@ -1246,6 +1309,82 @@ static int fixup_thermal_trips(void *blob, const char *name) return 0; } +#define OPTEE_SHM_SIZE 0x00400000 +static int ft_add_optee_node(void *fdt, struct bd_info *bd) +{ + struct fdt_memory carveout; + const char *path, *subpath; + phys_addr_t optee_start; + size_t optee_size; + int offs; + int ret; + + /* + * No TEE space allocated indicating no TEE running, so no + * need to add optee node in dts + */ + if (!rom_pointer[1]) + return 0; + + optee_start = (phys_addr_t)rom_pointer[0]; + optee_size = rom_pointer[1] - OPTEE_SHM_SIZE; + + offs = fdt_increase_size(fdt, 512); + if (offs) { + printf("No Space for dtb\n"); + return 1; + } + + path = "/firmware"; + offs = fdt_path_offset(fdt, path); + if (offs < 0) { + path = "/"; + offs = fdt_path_offset(fdt, path); + + if (offs < 0) { + printf("Could not find root node.\n"); + return offs; + } + + subpath = "firmware"; + offs = fdt_add_subnode(fdt, offs, subpath); + if (offs < 0) { + printf("Could not create %s node.\n", subpath); + return offs; + } + } + + subpath = "optee"; + offs = fdt_add_subnode(fdt, offs, subpath); + if (offs < 0) { + printf("Could not create %s node.\n", subpath); + return offs; + } + + fdt_setprop_string(fdt, offs, "compatible", "linaro,optee-tz"); + fdt_setprop_string(fdt, offs, "method", "smc"); + + carveout.start = optee_start, + carveout.end = optee_start + optee_size - 1, + ret = fdtdec_add_reserved_memory(fdt, "optee_core", &carveout, NULL, 0, + NULL, FDTDEC_RESERVED_MEMORY_NO_MAP); + if (ret < 0) { + printf("Could not create optee_core node.\n"); + return ret; + } + + carveout.start = optee_start + optee_size; + carveout.end = optee_start + optee_size + OPTEE_SHM_SIZE - 1; + ret = fdtdec_add_reserved_memory(fdt, "optee_shm", &carveout, NULL, 0, + NULL, FDTDEC_RESERVED_MEMORY_NO_MAP); + if (ret < 0) { + printf("Could not create optee_shm node.\n"); + return ret; + } + + return 0; +} + int ft_system_setup(void *blob, struct bd_info *bd) { #ifdef CONFIG_IMX8MQ @@ -1395,7 +1534,7 @@ usb_modify_speed: fixup_thermal_trips(blob, "soc-thermal")) printf("Failed to update soc-thermal trip(s)"); - return 0; + return ft_add_optee_node(blob, bd); } #endif |