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/*
* Copyright (C) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <fdtdec.h>
#include <malloc.h>
#include <pch.h>
#include <asm/lapic.h>
#include <asm/pci.h>
#include <asm/arch/bd82x6x.h>
#include <asm/arch/model_206ax.h>
#include <asm/arch/pch.h>
#include <asm/arch/sandybridge.h>
#define BIOS_CTRL 0xdc
static int bd82x6x_probe(struct udevice *dev)
{
const void *blob = gd->fdt_blob;
int gma_node;
int ret;
if (!(gd->flags & GD_FLG_RELOC))
return 0;
/* Cause the SATA device to do its init */
uclass_first_device(UCLASS_DISK, &dev);
bd82x6x_usb_ehci_init(PCH_EHCI1_DEV);
bd82x6x_usb_ehci_init(PCH_EHCI2_DEV);
gma_node = fdtdec_next_compatible(blob, 0, COMPAT_INTEL_GMA);
if (gma_node < 0) {
debug("%s: Cannot find GMA node\n", __func__);
return -EINVAL;
}
ret = dm_pci_bus_find_bdf(PCH_VIDEO_DEV, &dev);
if (ret)
return ret;
ret = gma_func0_init(dev, blob, gma_node);
if (ret)
return ret;
return 0;
}
static int bd82x6x_pch_get_sbase(struct udevice *dev, ulong *sbasep)
{
u32 rcba;
dm_pci_read_config32(dev, PCH_RCBA, &rcba);
/* Bits 31-14 are the base address, 13-1 are reserved, 0 is enable */
rcba = rcba & 0xffffc000;
*sbasep = rcba + 0x3800;
return 0;
}
static enum pch_version bd82x6x_pch_get_version(struct udevice *dev)
{
return PCHV_9;
}
static int bd82x6x_set_spi_protect(struct udevice *dev, bool protect)
{
uint8_t bios_cntl;
/* Adjust the BIOS write protect and SMM BIOS Write Protect Disable */
dm_pci_read_config8(dev, BIOS_CTRL, &bios_cntl);
if (protect) {
bios_cntl &= ~BIOS_CTRL_BIOSWE;
bios_cntl |= BIT(5);
} else {
bios_cntl |= BIOS_CTRL_BIOSWE;
bios_cntl &= ~BIT(5);
}
dm_pci_write_config8(dev, BIOS_CTRL, bios_cntl);
return 0;
}
static const struct pch_ops bd82x6x_pch_ops = {
.get_sbase = bd82x6x_pch_get_sbase,
.get_version = bd82x6x_pch_get_version,
.set_spi_protect = bd82x6x_set_spi_protect,
};
static const struct udevice_id bd82x6x_ids[] = {
{ .compatible = "intel,bd82x6x" },
{ }
};
U_BOOT_DRIVER(bd82x6x_drv) = {
.name = "bd82x6x",
.id = UCLASS_PCH,
.of_match = bd82x6x_ids,
.probe = bd82x6x_probe,
.ops = &bd82x6x_pch_ops,
};
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