From 9b3f40ad092ff2633eefa7e8a4a713f71c9cb8cb Mon Sep 17 00:00:00 2001 From: Sumit Garg Date: Fri, 1 Sep 2017 13:55:01 +0530 Subject: armv8: sec_firmware: Add support for loadables in FIT Enable support for loadables in SEC firmware FIT image. Currently support is added for single loadable image. Brief description of implementation: Add two more address pointers (loadable_h, loadable_l) as arguments to sec_firmware_init() api. Create new api: sec_firmware_checks_copy_loadable() to check if loadables node is present in SEC firmware FIT image. If present, verify loadable image and copies it to secure DDR memory. Populate address pointers with secure DDR memory addresses where loadable is copied. Example use-case could be trusted OS (tee.bin) as loadables node in SEC firmware FIT image. Signed-off-by: Sumit Garg Reviewed-by: York Sun --- arch/arm/cpu/armv8/fsl-layerscape/ppa.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'arch/arm/cpu/armv8/fsl-layerscape') diff --git a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c index bbf8bba112..cddcee964a 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c @@ -35,6 +35,7 @@ int ppa_init(void) unsigned int el = current_el(); void *ppa_fit_addr; u32 *boot_loc_ptr_l, *boot_loc_ptr_h; + u32 *loadable_l, *loadable_h; int ret; #ifdef CONFIG_CHAIN_OF_TRUST @@ -240,9 +241,9 @@ int ppa_init(void) PPA_KEY_HASH, &ppa_img_addr); if (ret != 0) - printf("PPA validation failed\n"); + printf("SEC firmware(s) validation failed\n"); else - printf("PPA validation Successful\n"); + printf("SEC firmware(s) validation Successful\n"); } #if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \ defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) @@ -254,15 +255,24 @@ int ppa_init(void) struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); boot_loc_ptr_l = &gur->bootlocptrl; boot_loc_ptr_h = &gur->bootlocptrh; + + /* Assign addresses to loadable ptrs */ + loadable_l = &gur->scratchrw[4]; + loadable_h = &gur->scratchrw[5]; #elif defined(CONFIG_FSL_LSCH2) struct ccsr_scfg __iomem *scfg = (void *)(CONFIG_SYS_FSL_SCFG_ADDR); boot_loc_ptr_l = &scfg->scratchrw[1]; boot_loc_ptr_h = &scfg->scratchrw[0]; + + /* Assign addresses to loadable ptrs */ + loadable_l = &scfg->scratchrw[2]; + loadable_h = &scfg->scratchrw[3]; #endif debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n", boot_loc_ptr_l, boot_loc_ptr_h); - ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h); + ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h, + loadable_l, loadable_h); #if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \ defined(CONFIG_SYS_LS_PPA_FW_IN_NAND) -- cgit v1.2.3