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lenovo/x201: Enable flash prefetching. 

Speeds up coreboot and especially payload load.

Before:
  90:load payload                  4,530,979 (17,728)
  99:selfboot jump                 5,103,408 (572,429)

After:
  90:load payload                  4,390,051 (14,849)
  99:selfboot jump                 4,505,966 (115,915)

Change-Id: I45c3042594cda16ab3adde6472e00ec1b2d2a688
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5145
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Vladimir Serbinenko 2014-02-05 19:10:03 +01:00
parent 3fcde22a30
commit 79c712cb9e
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/lenovo/x201/romstage.c
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@ -63,7 +63,7 @@ static void pch_enable_lpc(void)
pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10);
pci_write_config32(PCH_LPC_DEV, 0xd0, 0x0);
pci_write_config32(PCH_LPC_DEV, 0xdc, 0x0);
pci_write_config32(PCH_LPC_DEV, 0xdc, 0x8);
pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3,
(pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3) & ~2) | 1);