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armv8: Add tlb_allocated to arch global data

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When secure ram is used, MMU tables have to be put into secure ram.
To use common MMU code, gd->arch.tlb_addr will be used to host TLB
entry pointer. To save allocated memory for later use, tlb_allocated
variable is added to global data structure.

Signed-off-by: York Sun <york.sun@nxp.com>
This commit is contained in:
York Sun 2016-06-24 16:46:19 -07:00
parent e61a7534e3
commit 50e93b9565
2 changed files with 10 additions and 0 deletions
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1
arch/arm/include/asm/global_data.h
View File

@ -57,6 +57,7 @@ struct arch_global_data {
* 0x2 maintained
*/
phys_addr_t secure_ram;
unsigned long tlb_allocated;
#endif
#ifdef CONFIG_OMAP_COMMON

9
common/board_f.c
View File

@ -432,6 +432,15 @@ static int reserve_mmu(void)
gd->arch.tlb_addr = gd->relocaddr;
debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
gd->arch.tlb_addr + gd->arch.tlb_size);
#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
/*
* Record allocated tlb_addr in case gd->tlb_addr to be overwritten
* with location within secure ram.
*/
gd->arch.tlb_allocated = gd->arch.tlb_addr;
#endif
return 0;
}
#endif