diff options
| author | Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com> | 2024-03-14 15:15:40 +0900 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-03-15 12:11:11 +0000 |
| commit | 3588243177b8a6af1ca239001aba1251f74e738e (patch) | |
| tree | 080933f6c456fdfe93d84fc0f45d832146bdc028 /src/mainboard | |
| parent | 3ac72f8cf296ff6f56d69b6bf363118ecca6eebe (diff) | |
mb/google/brya/var/xol: Modify clkreq to clksrc mapping for NVMe
NVMe using clk_src[0] and clk_req[1] mapping to hardware design,
Due to inconsistency between PMC firmware and FSP, we need to set
clk_src to clk_req number, not same as hardware mapping in coreboot.
Then swap correct setting to clk_src=0,clk_req=1 in mFIT.
BUG=b:328318578
TEST=build firmware and veirfy suspend function on NVMe SKU DUT.
Cq-Depend: chrome-internal:7063434
Change-Id: I1777310782a0f4417bd1bb21287bec5852be966e
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81230
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/brya/variants/xol/overridetree.cb | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mainboard/google/brya/variants/xol/overridetree.cb b/src/mainboard/google/brya/variants/xol/overridetree.cb index b825ddd2f5..80d15feb62 100644 --- a/src/mainboard/google/brya/variants/xol/overridetree.cb +++ b/src/mainboard/google/brya/variants/xol/overridetree.cb @@ -268,10 +268,13 @@ chip soc/intel/alderlake end end device ref pcie4_0 on - # Enable CPU PCIE RP 1 using CLK 0 + # Enable NVMe SSD using clk_src0 and clk_req1 mapping to hardware + # design. Due to inconsistency between PMC firmware and FSP, we need + # to set clk_src to clk_req number, not same as hardware mapping in + # coreboot. Then swap correct setting clksrc, clkreq in mFIT. register "cpu_pcie_rp[CPU_RP(1)]" = "{ .clk_req = 1, - .clk_src = 0, + .clk_src = 1, .flags = PCIE_RP_LTR | PCIE_RP_AER, }" probe STORAGE STORAGE_NVME |