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powerpc/mpc85xx: SECURE BOOT- Enable chain of trust in SPL

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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>
This commit is contained in:
Sumit Garg
2016-07-14 12:27:51 -04:00
committed by York Sun
parent 63865278da
commit 8f01397ba7
7 changed files with 150 additions and 1 deletions
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8
arch/powerpc/cpu/mpc8xxx/fsl_pamu.c
View File

@@ -239,15 +239,23 @@ int pamu_init(void)
spaact_size = sizeof(struct paace) * NUM_SPAACT_ENTRIES;
/* Allocate space for Primary PAACT Table */
#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_PPAACT_ADDR))
ppaact = (void *)CONFIG_SPL_PPAACT_ADDR;
#else
ppaact = memalign(PAMU_TABLE_ALIGNMENT, ppaact_size);
if (!ppaact)
return -1;
#endif
memset(ppaact, 0, ppaact_size);
/* Allocate space for Secondary PAACT Table */
#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SPAACT_ADDR))
sec = (void *)CONFIG_SPL_SPAACT_ADDR;
#else
sec = memalign(PAMU_TABLE_ALIGNMENT, spaact_size);
if (!sec)
return -1;
#endif
memset(sec, 0, spaact_size);
ppaact_phys = virt_to_phys((void *)ppaact);

8
arch/powerpc/cpu/mpc8xxx/pamu_table.c
View File

@@ -28,6 +28,14 @@ void construct_pamu_addr_table(struct pamu_addr_tbl *tbl, int *num_entries)
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]);