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MPC85xx: TQM8548: use cache for AG and BE variants 

This patch makes accesses to the system memory cachable by removing the
caching-inhibited and guarded flags from the relevant TLB entries for
the TQM8548_BE and TQM8548_AG modules. FYI, the Freescale MPC85* boards
are configured similarly.

This results in a big averall performace improvement. TFTP downloads,
NAND Flash accesses, kernel boots, etc. are much faster.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
This commit is contained in:
Wolfgang Grandegger 2009-02-11 18:38:25 +01:00 committed by Andy Fleming
parent dc5f55d636
commit 080408fdc7
1 changed files with 2 additions and 2 deletions
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4
board/tqc/tqm85xx/tlb.c
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@ -128,12 +128,12 @@ struct fsl_e_tlb_entry tlb_table[] = {
* Without SPD EEPROM configured DDR, this must be setup manually.
*/
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 7, BOOKE_PAGESZ_1G, 1),
SET_TLB_ENTRY (1, CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
MAS3_SX | MAS3_SW | MAS3_SR, MAS2_I | MAS2_G,
MAS3_SX | MAS3_SW | MAS3_SR, 0,
0, 8, BOOKE_PAGESZ_1G, 1),
#else
/*