Secure Boot Target is added for NAND for P3041 Changes: In PowerPC, 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 this SRAM at location 0xBFF40000 with entry point as 0xBFFFFFFC.
Signed-off-by: Ruchika Gupta ruchika.gupta@freescale.com Signed-off-by: Aneesh Bansal aneesh.bansal@freescale.com --- Changes in v2: set_tlb call moved inside the if condition for checking if tlb_index is valid.
Makefile | 4 ++++ arch/powerpc/cpu/mpc85xx/cpu_init.c | 16 ++++++++++++++++ board/freescale/common/p_corenet/tlb.c | 18 +++++++++++++++++- configs/P3041DS_NAND_SECURE_BOOT_defconfig | 4 ++++ include/configs/corenet_ds.h | 6 ++++++ 5 files changed, 47 insertions(+), 1 deletion(-) create mode 100644 configs/P3041DS_NAND_SECURE_BOOT_defconfig
diff --git a/Makefile b/Makefile index 36a9a28..ca98b3e 100644 --- a/Makefile +++ b/Makefile @@ -714,8 +714,12 @@ ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin ifeq ($(CONFIG_SPL_FSL_PBL),y) ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin else +ifneq ($(CONFIG_SECURE_BOOT), y) +# For Secure Boot The Image needs to be signed and Header must also +# be included. So The image has to be built explicitly ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl endif +endif ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c index 85d32fc..026ed53 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c @@ -851,6 +851,22 @@ int cpu_init_r(void) setup_mp(); #endif
+#ifdef CONFIG_SECURE_BOOT + /* Disable the TLB Created for L3 and create the TLB required for + * PCIE (CONFIG_SYS_PCIE1_MEM_VIRT) which was not created earlier. + */ + int tlb_index; + tlb_index = find_tlb_idx((void *)CONFIG_BPTR_VIRT_ADDR, 1); + if (tlb_index != -1) { + disable_tlb(tlb_index); + + set_tlb(1, CONFIG_SYS_PCIE1_MEM_VIRT, + CONFIG_SYS_PCIE1_MEM_PHYS, + MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, tlb_index, BOOKE_PAGESZ_1G, 1); + } +#endif + #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC13 { if (SVR_MAJ(svr) < 3) { diff --git a/board/freescale/common/p_corenet/tlb.c b/board/freescale/common/p_corenet/tlb.c index 8148e46..1b60cfb 100644 --- a/board/freescale/common/p_corenet/tlb.c +++ b/board/freescale/common/p_corenet/tlb.c @@ -42,7 +42,9 @@ struct fsl_e_tlb_entry tlb_table[] = {
/* TLB 1 */ /* *I*** - Covers boot page */ -#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR) + /* In Case of Secure RAM Boot L3 address is defined at 0xbff00000 */ +#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR) && \ + !defined(CONFIG_SECURE_BOOT) /* * *I*G - L3SRAM. When L3 is used as 1M SRAM, the address of the * SRAM is at 0xfff00000, it covered the 0xfffff000. @@ -76,11 +78,25 @@ struct fsl_e_tlb_entry tlb_table[] = { MAS3_SX|MAS3_SR, MAS2_W|MAS2_G, 0, 2, BOOKE_PAGESZ_256M, 1),
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR) && \ + defined(CONFIG_SECURE_BOOT) + /* In case of Secure Boot, L3 is used as 1M SRAM + * and the address of the SRAM is at 0xbff00000. + * The PCIE TLB entry conflicts with the above entry. + * So, the entry for PCIE is not created at this point of time. + * It will be created later on in cpu_init_r() + * when U-Boot has relocated to DDR + */ + SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L3_ADDR, CONFIG_SYS_INIT_L3_ADDR, + MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, + 0, 3, BOOKE_PAGESZ_1M, 1), +#else /* *I*G* - PCI */ SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS, MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 0, 3, BOOKE_PAGESZ_1G, 1),
+#endif /* *I*G* - PCI */ SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x40000000, CONFIG_SYS_PCIE1_MEM_PHYS + 0x40000000, diff --git a/configs/P3041DS_NAND_SECURE_BOOT_defconfig b/configs/P3041DS_NAND_SECURE_BOOT_defconfig new file mode 100644 index 0000000..e810b1c --- /dev/null +++ b/configs/P3041DS_NAND_SECURE_BOOT_defconfig @@ -0,0 +1,4 @@ +CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,NAND,SECURE_BOOT,SYS_TEXT_BASE=0xBFF40000" +CONFIG_PPC=y +CONFIG_MPC85xx=y +CONFIG_TARGET_P3041DS=y diff --git a/include/configs/corenet_ds.h b/include/configs/corenet_ds.h index 225ffdd..8fba5ec 100644 --- a/include/configs/corenet_ds.h +++ b/include/configs/corenet_ds.h @@ -16,6 +16,11 @@ #include "../board/freescale/common/ics307_clk.h"
#ifdef CONFIG_RAMBOOT_PBL +#ifdef CONFIG_SECURE_BOOT +#define CONFIG_RAMBOOT_TEXT_BASE CONFIG_SYS_TEXT_BASE +#define CONFIG_RESET_VECTOR_ADDRESS 0xbffffffc +#define CONFIG_BPTR_VIRT_ADDR 0xbffff000 +#else #define CONFIG_RAMBOOT_TEXT_BASE CONFIG_SYS_TEXT_BASE #define CONFIG_RESET_VECTOR_ADDRESS 0xfffffffc #define CONFIG_SYS_FSL_PBL_PBI board/freescale/corenet_ds/pbi.cfg @@ -29,6 +34,7 @@ #define CONFIG_SYS_FSL_PBL_RCW board/freescale/corenet_ds/rcw_p5040ds.cfg #endif #endif +#endif
#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE /* Set 1M boot space */