u-boot/arch/powerpc/cpu/mpc8xxx/pamu_table.c
Sumit Garg 8f01397ba7 powerpc/mpc85xx: SECURE BOOT- Enable chain of trust in SPL
As part of Chain of Trust for Secure boot, the SPL U-Boot will validate
the next level U-boot image. Add a new function spl_validate_uboot to
perform the validation.

Enable hardware crypto operations in SPL using SEC block.
In case of Secure Boot, PAMU is not bypassed. For allowing SEC block
access to CPC configured as SRAM, configure PAMU.

Reviewed-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Signed-off-by: Aneesh Bansal <aneesh.bansal@nxp.com>
Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-07-21 11:09:23 -07:00

63 lines
1.5 KiB
C

/*
* Copyright 2012-2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/fsl_pamu.h>
DECLARE_GLOBAL_DATA_PTR;
void construct_pamu_addr_table(struct pamu_addr_tbl *tbl, int *num_entries)
{
int i = 0;
int j;
tbl->start_addr[i] =
(uint64_t)virt_to_phys((void *)CONFIG_SYS_SDRAM_BASE);
tbl->size[i] = (phys_size_t)(min(gd->ram_size, CONFIG_MAX_MEM_MAPPED));
tbl->end_addr[i] = tbl->start_addr[i] + tbl->size[i] - 1;
i++;
#ifdef CONFIG_SYS_FLASH_BASE_PHYS
tbl->start_addr[i] =
(uint64_t)virt_to_phys((void *)CONFIG_SYS_FLASH_BASE_PHYS);
tbl->size[i] = 256 * 1024 * 1024; /* 256MB flash */
tbl->end_addr[i] = tbl->start_addr[i] + tbl->size[i] - 1;
i++;
#endif
#if (defined(CONFIG_SPL_BUILD) && (CONFIG_SYS_INIT_L3_VADDR))
tbl->start_addr[i] =
(uint64_t)virt_to_phys((void *)CONFIG_SYS_INIT_L3_VADDR);
tbl->size[i] = 256 * 1024; /* 256K CPC flash */
tbl->end_addr[i] = tbl->start_addr[i] + tbl->size[i] - 1;
i++;
#endif
debug("PAMU address\t\t\tsize\n");
for (j = 0; j < i ; j++)
debug("%llx \t\t\t%llx\n", tbl->start_addr[j], tbl->size[j]);
*num_entries = i;
}
int sec_config_pamu_table(uint32_t liodn_ns, uint32_t liodn_s)
{
struct pamu_addr_tbl tbl;
int num_entries = 0;
int ret = 0;
construct_pamu_addr_table(&tbl, &num_entries);
ret = config_pamu(&tbl, num_entries, liodn_ns);
if (ret)
return ret;
ret = config_pamu(&tbl, num_entries, liodn_s);
if (ret)
return ret;
return ret;
}