mb/google/sarien: Enable bayhub 720 on Sarien

Add PCIe-eMMC bridge bayhub 720 on Sarien.

BUG=b:157971972
BRANCH=sarien
TEST=local build and boot from storage successfully

Change-Id: I28f40a420d51f476487655548f386cfbdc2e5329
Signed-off-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42740
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ivy Jian <ivy_jian@compal.corp-partner.google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
This commit is contained in:
Ivy Jian 2020-06-16 15:22:47 +08:00 committed by Tim Wawrzynczak
parent d54c9b0fef
commit 311ddbd193
4 changed files with 65 additions and 0 deletions

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@ -2,6 +2,7 @@
config BOARD_GOOGLE_BASEBOARD_SARIEN
def_bool n
select BOARD_ROMSIZE_KB_32768
select DRIVERS_GENERIC_BH720
select DRIVERS_I2C_GENERIC
select DRIVERS_I2C_HID
select DRIVERS_INTEL_ISH if BOARD_GOOGLE_ARCADA

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@ -2,6 +2,7 @@
bootblock-y += bootblock.c
ramstage-y += mainboard.c
ramstage-y += ramstage.c
ramstage-y += sku.c

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@ -0,0 +1,55 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <device/mmio.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <drivers/generic/bayhub/bh720.h>
#include <string.h>
void board_bh720(struct device *dev)
{
u32 sdbar;
u32 bh720_pcr_data;
printk(BIOS_DEBUG, "mainboard: %s init\n", __func__);
sdbar = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
/* Enable Memory Access Function */
write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x40000000);
write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000000);
write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
/* Set EMMC VCCQ 1.8V PCR 0x308[4] */
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_READ | BH720_PCR_EMMC_SETTING);
bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
write32((void *)(sdbar + BH720_MEM_RW_DATA),
bh720_pcr_data | BH720_PCR_EMMC_SETTING_1_8V);
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_WRITE | BH720_PCR_EMMC_SETTING);
/* Set Base clock to 200MHz(PCR 0x304[31:16] = 0x2510) */
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_READ | BH720_PCR_DrvStrength_PLL);
bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
bh720_pcr_data &= 0x0000FFFF;
bh720_pcr_data |= 0x2510 << 16;
write32((void *)(sdbar + BH720_MEM_RW_DATA), bh720_pcr_data);
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_WRITE | BH720_PCR_DrvStrength_PLL);
/* Use PLL Base clock PCR 0x3E4[22] = 1 */
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_READ | BH720_PCR_CSR);
bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
write32((void *)(sdbar + BH720_MEM_RW_DATA),
bh720_pcr_data | BH720_PCR_CSR_EMMC_MODE_SEL);
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_WRITE | BH720_PCR_CSR);
/* Disable Memory Access */
write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000001);
write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x80000000);
}

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@ -395,12 +395,20 @@ chip soc/intel/cannonlake
device pci 1c.6 off end # PCI Express Port 7
device pci 1c.7 on end # PCI Express Port 8
device pci 1d.0 on
chip drivers/generic/bayhub
register "power_saving" = "1"
device pci 00.0 on end
end
smbios_slot_desc "SlotTypeM2Socket1_SD" "SlotLengthOther" "2230" "SlotDataBusWidth1X"
end # PCI Express Port 9
device pci 1d.1 on end # PCI Express Port 10
device pci 1d.2 off end # PCI Express Port 11
device pci 1d.3 off end # PCI Express Port 12
device pci 1d.4 on
chip drivers/generic/bayhub
register "power_saving" = "1"
device pci 00.0 on end
end
smbios_slot_desc "SlotTypeM2Socket3" "SlotLengthOther" "2280" "SlotDataBusWidth4X"
end # PCI Express Port 13 (x4)
device pci 1e.0 off end # UART #0