mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 02:20:25 +00:00
17e0a9ab08
We don't need to init the graphics controller so early. Move it alongside the other graphics setup, just before we run the ROM. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
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* From Coreboot
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*
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* Copyright (C) 2007-2010 coresystems GmbH
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* Copyright (C) 2011 Google Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/io.h>
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#include <asm/pci.h>
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#include <asm/arch/pch.h>
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#include <asm/arch/sandybridge.h>
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static void sandybridge_setup_lpc_bars(pci_dev_t lpc_dev)
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{
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/* Setting up Southbridge. In the northbridge code. */
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debug("Setting up static southbridge registers\n");
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x86_pci_write_config32(lpc_dev, PCH_RCBA_BASE, DEFAULT_RCBA | 1);
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x86_pci_write_config32(lpc_dev, PMBASE, DEFAULT_PMBASE | 1);
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x86_pci_write_config8(lpc_dev, ACPI_CNTL, 0x80); /* Enable ACPI BAR */
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debug("Disabling watchdog reboot\n");
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setbits_le32(RCB_REG(GCS), 1 >> 5); /* No reset */
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outw(1 << 11, DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */
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}
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static void sandybridge_setup_northbridge_bars(struct udevice *dev)
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{
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/* Set up all hardcoded northbridge BARs */
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debug("Setting up static registers\n");
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dm_pci_write_config32(dev, EPBAR, DEFAULT_EPBAR | 1);
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dm_pci_write_config32(dev, EPBAR + 4, (0LL + DEFAULT_EPBAR) >> 32);
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dm_pci_write_config32(dev, MCHBAR, DEFAULT_MCHBAR | 1);
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dm_pci_write_config32(dev, MCHBAR + 4, (0LL + DEFAULT_MCHBAR) >> 32);
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/* 64MB - busses 0-63 */
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dm_pci_write_config32(dev, PCIEXBAR, DEFAULT_PCIEXBAR | 5);
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dm_pci_write_config32(dev, PCIEXBAR + 4,
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(0LL + DEFAULT_PCIEXBAR) >> 32);
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dm_pci_write_config32(dev, DMIBAR, DEFAULT_DMIBAR | 1);
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dm_pci_write_config32(dev, DMIBAR + 4, (0LL + DEFAULT_DMIBAR) >> 32);
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/* Set C0000-FFFFF to access RAM on both reads and writes */
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dm_pci_write_config8(dev, PAM0, 0x30);
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dm_pci_write_config8(dev, PAM1, 0x33);
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dm_pci_write_config8(dev, PAM2, 0x33);
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dm_pci_write_config8(dev, PAM3, 0x33);
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dm_pci_write_config8(dev, PAM4, 0x33);
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dm_pci_write_config8(dev, PAM5, 0x33);
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dm_pci_write_config8(dev, PAM6, 0x33);
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}
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static int bd82x6x_northbridge_probe(struct udevice *dev)
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{
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const int chipset_type = SANDYBRIDGE_MOBILE;
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u32 capid0_a;
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u8 reg8;
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if (gd->flags & GD_FLG_RELOC)
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return 0;
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/* Device ID Override Enable should be done very early */
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dm_pci_read_config32(dev, 0xe4, &capid0_a);
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if (capid0_a & (1 << 10)) {
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dm_pci_read_config8(dev, 0xf3, ®8);
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reg8 &= ~7; /* Clear 2:0 */
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if (chipset_type == SANDYBRIDGE_MOBILE)
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reg8 |= 1; /* Set bit 0 */
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dm_pci_write_config8(dev, 0xf3, reg8);
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}
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sandybridge_setup_lpc_bars(PCH_LPC_DEV);
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sandybridge_setup_northbridge_bars(dev);
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/* Device Enable */
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dm_pci_write_config32(dev, DEVEN, DEVEN_HOST | DEVEN_IGD);
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return 0;
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}
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static const struct udevice_id bd82x6x_northbridge_ids[] = {
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{ .compatible = "intel,bd82x6x-northbridge" },
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{ }
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};
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U_BOOT_DRIVER(bd82x6x_northbridge_drv) = {
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.name = "bd82x6x_northbridge",
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.id = UCLASS_NORTHBRIDGE,
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.of_match = bd82x6x_northbridge_ids,
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.probe = bd82x6x_northbridge_probe,
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};
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