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mb/intel/adlrvp: x4 slot support (SD card support) for Adl-P RVP 

Use clock src and clock req to 7 for x4 slot.
Remove free running clock setting for clock 6.
Configure gpio for source clock OEB native function going to x4 slot.

BUG=b:233252409
BRANCH=firmware-brya-14505.B

TEST=insert SD AIC to x4 slot. boot to OS and use 'lspci' to check
the device.
ex:
58:00.0 SD Host controller: O2 Micro, Inc. Device 8621 (rev 01)
NOTE: The bus number varies.

Signed-off-by: Cliff Huang <cliff.huang@intel.corp-partner.google.com>
Change-Id: Iba5d83d133b6ae8cd389ddd971db308170094300
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63945
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Bora Guvendik <bora.guvendik@intel.com>
This commit is contained in:
Cliff Huang 2022-04-28 18:38:44 -07:00 committed by Felix Held
parent edbbabcbe7
commit 6c6be42c9f
3 changed files with 15 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/mainboard/intel/adlrvp/devicetree.cb
View File

@ -52,12 +52,14 @@ chip soc/intel/alderlake
.flags = PCIE_RP_CLK_REQ_DETECT,
}"
# Enable PCH PCIE RP 8 using free running CLK (0x80)
# Clock source is shared with LAN and hence marked as free running.
# NOTE: requires GPP_A7 set to Native Function 1 for SRCCLK_OE7
register "pch_pcie_rp[PCH_RP(8)]" = "{
.flags = PCIE_RP_CLK_SRC_UNUSED,
.clk_src = 7,
.clk_req = 7,
.flags = PCIE_RP_CLK_REQ_DETECT | PCIE_RP_LTR,
.PcieRpL1Substates = L1_SS_L1_2,
.pcie_rp_detect_timeout_ms = 50,
}"
register "pcie_clk_config_flag[6]" = "PCIE_CLK_FREE_RUNNING"
# Enable PCH PCIE RP 9 using CLK 1
register "pch_pcie_rp[PCH_RP(9)]" = "{

9
src/mainboard/intel/adlrvp/early_gpio.c
View File

@ -18,6 +18,15 @@ static const struct pad_config early_gpio_table[] = {
/* EC_IN_RW */
PAD_CFG_GPI(GPP_E7, NONE, DEEP),
/* x4 PCIE slot 1 RESET */
PAD_CFG_GPO(GPP_F10, 0, PLTRST),
/* Support external source clock via OEB6 and OEB7 */
/* SRCCLK_OEB6 for built-in LAN */
PAD_CFG_NF(GPP_E5, NONE, PLTRST, NF2),
/* SRCCLK_OEB7 for x4 slot */
PAD_CFG_NF(GPP_A7, NONE, PLTRST, NF1),
/* CPU PCIe VGPIO for RP0 */
PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_0, NONE, PLTRST, NF1),
PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_1, NONE, PLTRST, NF1),

6
src/mainboard/intel/adlrvp/gpio.c
View File

@ -67,10 +67,6 @@ static const struct pad_config gpio_table[] = {
PAD_CFG_GPO(GPP_B4, 1, PLTRST),
/* M.2_PCH_SSD_PWREN */
PAD_CFG_GPO(GPP_D16, 1, PLTRST),
/* SRCCLK_OEB7 */
PAD_CFG_GPO(GPP_A7, 0, PLTRST),
/* SRCCLK_OEB6 */
PAD_CFG_GPO(GPP_E5, 0, PLTRST),
/* CAM1_RST */
PAD_CFG_GPO(GPP_R5, 1, PLTRST),
@ -189,8 +185,6 @@ static const struct pad_config gpio_table[] = {
/* I2S0_RXD */
PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2),
/* I2S2_SCLK */
PAD_CFG_NF(GPP_A7, NONE, DEEP, NF1),
/* I2S2_SFRM */
PAD_CFG_NF(GPP_A8, NONE, DEEP, NF1),
/* I2S2_TXD */