diff options
| author | Aneesh Bansal <aneesh.bansal@freescale.com> | 2015-06-16 10:36:00 +0530 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-07-31 08:50:18 -0700 |
| commit | 467a40dfe35f48d830f01a72617207d03ca85b4d (patch) | |
| tree | 611ccbd0ca161a8abd72b1481e7ac05547969887 /arch/powerpc | |
| parent | 7842950f7c05aa9d901308d149ad3d67237bb315 (diff) | |
powerpc/mpc85xx: SECURE BOOT- NAND secure boot target for P3041
Secure Boot Target is added for NAND for P3041.
For mpc85xx SoCs, the core begins execution from address 0xFFFFFFFC.
In case of secure boot, this default address maps to Boot ROM.
The Boot ROM code requires that the bootloader(U-boot) must lie
in 0 to 3.5G address space i.e. 0x0 - 0xDFFFFFFF.
In case of NAND Secure Boot, CONFIG_SYS_RAMBOOT is enabled and CPC is
configured as SRAM. U-Boot binary will be located on SRAM configured
at address 0xBFF00000.
In the U-Boot code, TLB entries are created to map the virtual address
0xFFF00000 to physical address 0xBFF00000 of CPC configured as SRAM.
Signed-off-by: Saksham Jain <saksham@freescale.com>
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/start.S | 11 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_secure_boot.h | 5 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S index e61d8e0fc2..a70fb711c7 100644 --- a/arch/powerpc/cpu/mpc85xx/start.S +++ b/arch/powerpc/cpu/mpc85xx/start.S @@ -1052,6 +1052,17 @@ create_init_ram_area: CONFIG_SYS_MONITOR_BASE & 0xfff00000, MAS2_I|MAS2_G, \ CONFIG_SYS_PBI_FLASH_WINDOW & 0xfff00000, MAS3_SX|MAS3_SW|MAS3_SR, \ 0, r6 + +#elif defined(CONFIG_RAMBOOT_PBL) && defined(CONFIG_SECURE_BOOT) + /* create a temp mapping in AS = 1 for mapping CONFIG_SYS_MONITOR_BASE + * to L3 Address configured by PBL for ISBC code + */ + create_tlb1_entry 15, \ + 1, BOOKE_PAGESZ_1M, \ + CONFIG_SYS_MONITOR_BASE & 0xfff00000, MAS2_I|MAS2_G, \ + CONFIG_SYS_INIT_L3_ADDR & 0xfff00000, MAS3_SX|MAS3_SW|MAS3_SR, \ + 0, r6 + #else /* * create a temp mapping in AS=1 to the 1M CONFIG_SYS_MONITOR_BASE space, the main diff --git a/arch/powerpc/include/asm/fsl_secure_boot.h b/arch/powerpc/include/asm/fsl_secure_boot.h index 7810ae2147..442853c239 100644 --- a/arch/powerpc/include/asm/fsl_secure_boot.h +++ b/arch/powerpc/include/asm/fsl_secure_boot.h @@ -48,6 +48,11 @@ #define CONFIG_SYS_INIT_L3_ADDR 0xbff00000 #endif +#if defined(CONFIG_RAMBOOT_PBL) +#undef CONFIG_SYS_INIT_L3_ADDR +#define CONFIG_SYS_INIT_L3_ADDR 0xbff00000 +#endif + #if defined(CONFIG_C29XPCIE) #define CONFIG_KEY_REVOCATION #endif |