diff options
| author | Marek Vasut <[email protected]> | 2025-10-30 22:23:50 +0100 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-11-06 11:26:18 -0600 |
| commit | be0e9ac7c8a141fbc52f658fbfdd96cf2c27d0de (patch) | |
| tree | 3cd8720729a659a427bd7ca9af0fa1565a91020a | |
| parent | 20861863eb3010581b12e9a77eb7958460edaa82 (diff) | |
spl: fit: Add ability to jump to Linux via OPTEE-OS on ARMv7a
Add support for jumping to Linux kernel through OPTEE-OS on ARMv7a to SPL.
This is already supported on ARMv8a, this patch adds the ARMv7a support.
Extend the SPL fitImage loader to record OPTEE-OS load address and in case
the load address is non-zero, use the same bootm-optee.S code used by the
U-Boot fitImage jump code to start OPTEE-OS first and jump to Linux next.
Signed-off-by: Marek Vasut <[email protected]>
| -rw-r--r-- | arch/arm/lib/spl.c | 10 | ||||
| -rw-r--r-- | common/spl/spl_fit.c | 20 | ||||
| -rw-r--r-- | include/spl.h | 3 |
3 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/lib/spl.c b/arch/arm/lib/spl.c index 6c7d1fb5629..bce51b9cc7d 100644 --- a/arch/arm/lib/spl.c +++ b/arch/arm/lib/spl.c @@ -16,6 +16,9 @@ #include <asm/global_data.h> #include <linux/compiler.h> #include <asm/mach-types.h> +#if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) +#include <asm/armv7.h> +#endif #ifndef CONFIG_SPL_DM /* Pointer to as well as the global data structure for SPL */ @@ -71,6 +74,13 @@ void __noreturn jump_to_image_linux(struct spl_image_info *spl_image) image_entry_arg_t image_entry = (image_entry_arg_t)(uintptr_t) spl_image->entry_point; cleanup_before_linux(); +#if defined(CONFIG_BOOTM_OPTEE) && defined(CONFIG_ARM) && !defined(CONFIG_ARM64) + if (spl_image->optee_addr) + boot_jump_linux_via_optee((void *)(spl_image->entry_point), + machid, + (u32)(spl_image->arg), + spl_image->optee_addr); +#endif image_entry(0, machid, spl_image->arg); } #endif /* CONFIG_ARM64 */ diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c index 746c3d2fa28..616df46e1c8 100644 --- a/common/spl/spl_fit.c +++ b/common/spl/spl_fit.c @@ -550,6 +550,23 @@ static int spl_fit_image_is_fpga(const void *fit, int node) return !strcmp(type, "fpga"); } +static void spl_fit_image_record_arm32_optee(const void *fit, int node, + struct spl_image_info *spl_image, + struct spl_image_info *image_info) +{ +#if defined(CONFIG_BOOTM_OPTEE) && defined(CONFIG_ARM) && !defined(CONFIG_ARM64) + const char *type = fdt_getprop(fit, node, FIT_TYPE_PROP, NULL); + + if (!type) + return; + + if (strcmp(type, "tee")) + return; + + spl_image->optee_addr = image_info->load_addr; +#endif +} + static int spl_fit_image_get_os(const void *fit, int noffset, uint8_t *os) { if (!CONFIG_IS_ENABLED(FIT_IMAGE_TINY) || CONFIG_IS_ENABLED(OS_BOOT)) @@ -903,6 +920,9 @@ int spl_load_simple_fit(struct spl_image_info *spl_image, image_info.entry_point != FDT_ERROR) spl_image->entry_point = image_info.entry_point; + spl_fit_image_record_arm32_optee(ctx.fit, node, spl_image, + &image_info); + /* Record our loadables into the FDT */ if (!CONFIG_IS_ENABLED(FIT_IMAGE_TINY) && xpl_get_fdt_update(info) && spl_image->fdt_addr) diff --git a/include/spl.h b/include/spl.h index cf45d411ecb..06dc28362d3 100644 --- a/include/spl.h +++ b/include/spl.h @@ -289,6 +289,9 @@ struct spl_image_info { #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL) void *fdt_addr; #endif +#if defined(CONFIG_BOOTM_OPTEE) && defined(CONFIG_ARM) && !defined(CONFIG_ARM64) + ulong optee_addr; +#endif u32 boot_device; u32 offset; u32 size; |