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85xx: Add support to populate addr map based on TLB settings 

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2008-12-16 14:59:20 -06:00 committed by Andrew Fleming-AFLEMING
parent 78bbc5ce15
commit ecf5b98c7a
3 changed files with 45 additions and 0 deletions
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34
cpu/mpc85xx/tlb.c
View File

@ -26,6 +26,11 @@
#include <common.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#ifdef CONFIG_ADDR_MAP
#include <addr_map.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
void set_tlb(u8 tlb, u32 epn, u64 rpn,
u8 perms, u8 wimge,
@ -47,6 +52,11 @@ void set_tlb(u8 tlb, u32 epn, u64 rpn,
mtspr(MAS7, _mas7);
#endif
asm volatile("isync;msync;tlbwe;isync");
#ifdef CONFIG_ADDR_MAP
if ((tlb == 1) && (gd->flags & GD_FLG_RELOC))
addrmap_set_entry(epn, rpn, (1UL << ((tsize * 2) + 10)), esel);
#endif
}
void disable_tlb(u8 esel)
@ -67,6 +77,11 @@ void disable_tlb(u8 esel)
mtspr(MAS7, _mas7);
#endif
asm volatile("isync;msync;tlbwe;isync");
#ifdef CONFIG_ADDR_MAP
if (gd->flags & GD_FLG_RELOC)
addrmap_set_entry(0, 0, 0, esel);
#endif
}
void invalidate_tlb(u8 tlb)
@ -91,6 +106,25 @@ void init_tlbs(void)
return ;
}
#ifdef CONFIG_ADDR_MAP
void init_addr_map(void)
{
int i;
for (i = 0; i < num_tlb_entries; i++) {
if (tlb_table[i].tlb == 0)
continue;
addrmap_set_entry(tlb_table[i].epn,
tlb_table[i].rpn,
(1UL << ((tlb_table[i].tsize * 2) + 10)),
tlb_table[i].esel);
}
return ;
}
#endif
unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
{
unsigned int tlb_size;

3
include/asm-ppc/mmu.h
View File

@ -431,6 +431,9 @@ extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
extern void disable_tlb(u8 esel);
extern void invalidate_tlb(u8 tlb);
extern void init_tlbs(void);
#ifdef CONFIG_ADDR_MAP
extern void init_addr_map(void);
#endif
extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \

8
lib_ppc/board.c
View File

@ -75,6 +75,10 @@
#include <keyboard.h>
#endif
#ifdef CONFIG_ADDR_MAP
#include <asm/mmu.h>
#endif
#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
extern int update_flash_size (int flash_size);
#endif
@ -694,6 +698,10 @@ void board_init_r (gd_t *id, ulong dest_addr)
*/
trap_init (dest_addr);
#if defined(CONFIG_ADDR_MAP) && defined(CONFIG_E500)
init_addr_map();
#endif
#if defined(CONFIG_BOARD_EARLY_INIT_R)
board_early_init_r ();
#endif