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authorFelix Held <felix-coreboot@felixheld.de>2019-12-28 18:57:06 +0100
committerFelix Held <felix-coreboot@felixheld.de>2019-12-29 12:20:16 +0000
commit8fa02a8ef91a2bc5c45bed7c42c6e6ecef126ea3 (patch)
tree9f12d194afe602b43ae76c00d29c6dba8714e68a /src/northbridge
parentbc3668a4687f68fb1bfb39ec89fa863879fed2ac (diff)
downloadcoreboot-8fa02a8ef91a2bc5c45bed7c42c6e6ecef126ea3.tar.xz
nb/intel/sandybridge: simplify ME lock and memory enable bit write
Timeless build results in identical image for X230. Change-Id: I36842ebd4917e96aa8aec87ba13d27bd4bf44b76 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37971 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/sandybridge/raminit_common.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index 8f58dcba83..b12ea25f25 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -608,9 +608,8 @@ void dram_memorymap(ramctr_timing * ctrl, int me_uma_size)
reg = pci_read_config32(PCI_DEV(0, 0, 0), MEMASK);
val = (0x80000 - me_uma_size) & 0xfff;
reg = (reg & ~0xfff00000) | (val << 20);
- reg = (reg & ~0x400) | (1 << 10); // set lockbit on ME mem
-
- reg = (reg & ~0x800) | (1 << 11); // set ME memory enable
+ reg = reg | (1 << 10); // set lockbit on ME mem
+ reg = reg | (1 << 11); // set ME memory enable
printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MEMASK, reg);
pci_write_config32(PCI_DEV(0, 0, 0), MEMASK, reg);
}