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armv8: layerscape: Add TFABOOT support

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Adds TFABOOT support config option and add generic code to enable
execution from DDR.

Signed-off-by: York Sun <york.sun@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
This commit is contained in:
Rajesh Bhagat 2018-11-05 18:01:37 +00:00 • committed by York Sun
parent 9bd5fe7027
commit 535d76a121
2 changed files with 13 additions and 3 deletions
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7
arch/arm/cpu/armv8/fsl-layerscape/Kconfig
View file

@ -514,3 +514,10 @@ config HAS_FSL_XHCI_USB
help help
For some SoC(such as LS1043A and LS1046A), USB and QE-HDLC multiplex use For some SoC(such as LS1043A and LS1046A), USB and QE-HDLC multiplex use
pins, select it when the pins are assigned to USB. pins, select it when the pins are assigned to USB.
config TFABOOT
bool "Support for booting from TFA"
default n
help
Enabling this will make a U-Boot binary that is capable of being
booted via TFA.

9
arch/arm/cpu/armv8/fsl-layerscape/cpu.c
View file

@ -88,7 +88,8 @@ static struct mm_region early_map[] = {
#endif #endif
{ CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1, { CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1,
CONFIG_SYS_FSL_DRAM_SIZE1, CONFIG_SYS_FSL_DRAM_SIZE1,
#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD) #if defined(CONFIG_TFABOOT) || \
(defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD))
PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_MEMTYPE(MT_NORMAL) |
#else /* Start with nGnRnE and PXN and UXN to prevent speculative access */ #else /* Start with nGnRnE and PXN and UXN to prevent speculative access */
PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_PXN | PTE_BLOCK_UXN | PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_PXN | PTE_BLOCK_UXN |
@ -139,7 +140,8 @@ static struct mm_region early_map[] = {
#endif #endif
{ CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1, { CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1,
CONFIG_SYS_FSL_DRAM_SIZE1, CONFIG_SYS_FSL_DRAM_SIZE1,
#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD) #if defined(CONFIG_TFABOOT) || \
(defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD))
PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_MEMTYPE(MT_NORMAL) |
#else /* Start with nGnRnE and PXN and UXN to prevent speculative access */ #else /* Start with nGnRnE and PXN and UXN to prevent speculative access */
PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_PXN | PTE_BLOCK_UXN | PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_PXN | PTE_BLOCK_UXN |
@ -1236,7 +1238,8 @@ void update_early_mmu_table(void)
__weak int dram_init(void) __weak int dram_init(void)
{ {
fsl_initdram(); fsl_initdram();
#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD) #if (!defined(CONFIG_SPL) && !defined(CONFIG_TFABOOT)) || \
defined(CONFIG_SPL_BUILD)
/* This will break-before-make MMU for DDR */ /* This will break-before-make MMU for DDR */
update_early_mmu_table(); update_early_mmu_table();
#endif #endif