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baytrail: fix the coding error on PCIe L1 exit latency 

The original code uses L1EXIT_MASK to shift the bit for
PCIe L1 exit latency, the code should use L1EXIT_SHIFT
for bit shifting.

BUG=chrome-os-partner:34037
BRANCH=None
TEST=build and boot on candy, verify B0:D28:F0 + 4Ch [17:15]
set to 010b. Correspond WIFI device performance got improvement.
Signed-off-by: Kevin L Lee <kevin.l.lee@intel.com>

Change-Id: I3ac5b6319b726aa16cdb9678face89022d979517
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 381827e3d92c9e786cd8ebe412586968662fb4be
Original-Change-Id: I8171f80720830cfa76f26778ae31c7590a723b92
Original-Reviewed-on: https://chromium-review.googlesource.com/234673
Original-Reviewed-by: Kenji Chen <kenji.chen@intel.com>
Original-Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Original-Tested-by: Kenji Chen <kenji.chen@intel.com>
Original-Commit-Queue: Kenji Chen <kenji.chen@intel.com>
Reviewed-on: http://review.coreboot.org/9480
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Kevin L Lee 2014-12-12 14:02:43 +08:00 committed by Stefan Reinauer
parent e6cf3c6f78
commit 5c8d43e207
1 changed files with 1 additions and 1 deletions
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2
src/soc/intel/baytrail/pcie.c
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@ -95,7 +95,7 @@ static void byt_pcie_init(device_t dev)
/* Exit latency configuration based on
* PHYCTL2_IOSFBCTL[PLL_OFF_EN] set in root port 1*/
REG_PCI_RMW32(LCAP, ~L1EXIT_MASK,
2 << (L1EXIT_MASK + pll_en_off)),
2 << (L1EXIT_SHIFT + pll_en_off)),
REG_SCRIPT_NEXT(init_static_after_exit_latency),
/* Disable hot plug, set power to 10W, set slot number. */
REG_PCI_RMW32(SLCAP, ~(HPC | HPS),