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drivers/generic/bayhub: Add ACPI for BH720

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The Bayhub BH720 eMMC bridge is a fixed internal device, and needs to
me marked as non-removable in order for Windows to properly recognize/
utilize the device. Add the necessary ACPI to be generated at runtime.

TEST=build/boot/install Win11 on google/kahlee (liara)

Change-Id: I0815abf1d2dc5cfe785dc04670ab91f2a6a1af23
Signed-off-by: CoolStar <coolstarorganization@gmail.com>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78403
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
This commit is contained in:
CoolStar 2023-10-15 10:02:56 -05:00 committed by Matt DeVillier
parent f2e14fbb40
commit 64ba070fd1
1 changed files with 47 additions and 0 deletions
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47
src/drivers/generic/bayhub/bh720.c
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@ -9,9 +9,13 @@
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include <acpi/acpigen.h>
#include <acpi/acpigen_pci.h>
#include "chip.h"
#include "bh720.h"
#define BH720_ACPI_NAME "BHUB"
static u32 bh720_read_pcr(u32 sdbar, u32 addr)
{
write32p(sdbar + BH720_MEM_RW_ADR, BH720_MEM_RW_READ | addr);
@ -99,12 +103,55 @@ static void bh720_init(struct device *dev)
}
}
static void bh720_fill_ssdt(const struct device *dev)
{
if (dev->path.type != DEVICE_PATH_PCI) {
return;
}
const char *scope = acpi_device_scope(dev);
const char *name = acpi_device_name(dev);
if (!scope || !name)
return;
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(name);
acpigen_write_ADR_pci_device(dev);
acpigen_write_STA(acpi_device_status(dev));
/* Card */
acpigen_write_device("CARD");
acpigen_write_ADR(0x08); //eMMC is always on address 0x8
/*
* Method (_RMV, 0, NotSerialized) { Return (0) }
*/
acpigen_write_method("_RMV", 0); /* Method */
acpigen_emit_byte(RETURN_OP);
acpigen_write_byte(0);
acpigen_pop_len(); /* Method */
acpigen_pop_len(); /* Card */
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */
}
static const char *bh720_acpi_name(const struct device *dev)
{
return BH720_ACPI_NAME;
}
static struct device_operations bh720_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.ops_pci = &pci_dev_ops_pci,
.init = bh720_init,
.acpi_name = bh720_acpi_name,
.acpi_fill_ssdt = bh720_fill_ssdt
};
static const unsigned short pci_device_ids[] = {