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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/x86/cpu/broadwell/northbridge.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/x86/cpu/broadwell/northbridge.c')
-rw-r--r--roms/u-boot/arch/x86/cpu/broadwell/northbridge.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/cpu/broadwell/northbridge.c b/roms/u-boot/arch/x86/cpu/broadwell/northbridge.c
new file mode 100644
index 000000000..141babc51
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/broadwell/northbridge.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2011 The Chromium Authors
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/mrc_common.h>
+#include <asm/arch/iomap.h>
+#include <asm/arch/pch.h>
+#include <asm/arch/pei_data.h>
+
+__weak asmlinkage void sdram_console_tx_byte(unsigned char byte)
+{
+#ifdef DEBUG
+ putc(byte);
+#endif
+}
+
+void broadwell_fill_pei_data(struct pei_data *pei_data)
+{
+ pei_data->pei_version = PEI_VERSION;
+ pei_data->board_type = BOARD_TYPE_ULT;
+ pei_data->pciexbar = MCFG_BASE_ADDRESS;
+ pei_data->smbusbar = SMBUS_BASE_ADDRESS;
+ pei_data->ehcibar = EARLY_EHCI_BAR;
+ pei_data->xhcibar = EARLY_XHCI_BAR;
+ pei_data->gttbar = EARLY_GTT_BAR;
+ pei_data->pmbase = ACPI_BASE_ADDRESS;
+ pei_data->gpiobase = GPIO_BASE_ADDRESS;
+ pei_data->tseg_size = CONFIG_SMM_TSEG_SIZE;
+ pei_data->temp_mmio_base = EARLY_TEMP_MMIO;
+ pei_data->tx_byte = sdram_console_tx_byte;
+ pei_data->ddr_refresh_2x = 1;
+}
+
+static void pei_data_usb2_port(struct pei_data *pei_data, int port, uint length,
+ uint enable, uint oc_pin, uint location)
+{
+ pei_data->usb2_ports[port].length = length;
+ pei_data->usb2_ports[port].enable = enable;
+ pei_data->usb2_ports[port].oc_pin = oc_pin;
+ pei_data->usb2_ports[port].location = location;
+}
+
+static void pei_data_usb3_port(struct pei_data *pei_data, int port, uint enable,
+ uint oc_pin, uint fixed_eq)
+{
+ pei_data->usb3_ports[port].enable = enable;
+ pei_data->usb3_ports[port].oc_pin = oc_pin;
+ pei_data->usb3_ports[port].fixed_eq = fixed_eq;
+}
+
+void mainboard_fill_pei_data(struct pei_data *pei_data)
+{
+ /* DQ byte map for Samus board */
+ const u8 dq_map[2][6][2] = {
+ { { 0x0F, 0xF0 }, { 0x00, 0xF0 }, { 0x0F, 0xF0 },
+ { 0x0F, 0x00 }, { 0xFF, 0x00 }, { 0xFF, 0x00 } },
+ { { 0x0F, 0xF0 }, { 0x00, 0xF0 }, { 0x0F, 0xF0 },
+ { 0x0F, 0x00 }, { 0xFF, 0x00 }, { 0xFF, 0x00 } } };
+ /* DQS CPU<>DRAM map for Samus board */
+ const u8 dqs_map[2][8] = {
+ { 2, 0, 1, 3, 6, 4, 7, 5 },
+ { 2, 1, 0, 3, 6, 5, 4, 7 } };
+
+ pei_data->ec_present = 1;
+
+ /* One installed DIMM per channel */
+ pei_data->dimm_channel0_disabled = 2;
+ pei_data->dimm_channel1_disabled = 2;
+
+ memcpy(pei_data->dq_map, dq_map, sizeof(dq_map));
+ memcpy(pei_data->dqs_map, dqs_map, sizeof(dqs_map));
+
+ /* P0: HOST PORT */
+ pei_data_usb2_port(pei_data, 0, 0x0080, 1, 0,
+ USB_PORT_BACK_PANEL);
+ /* P1: HOST PORT */
+ pei_data_usb2_port(pei_data, 1, 0x0080, 1, 1,
+ USB_PORT_BACK_PANEL);
+ /* P2: RAIDEN */
+ pei_data_usb2_port(pei_data, 2, 0x0080, 1, USB_OC_PIN_SKIP,
+ USB_PORT_BACK_PANEL);
+ /* P3: SD CARD */
+ pei_data_usb2_port(pei_data, 3, 0x0040, 1, USB_OC_PIN_SKIP,
+ USB_PORT_INTERNAL);
+ /* P4: RAIDEN */
+ pei_data_usb2_port(pei_data, 4, 0x0080, 1, USB_OC_PIN_SKIP,
+ USB_PORT_BACK_PANEL);
+ /* P5: WWAN (Disabled) */
+ pei_data_usb2_port(pei_data, 5, 0x0000, 0, USB_OC_PIN_SKIP,
+ USB_PORT_SKIP);
+ /* P6: CAMERA */
+ pei_data_usb2_port(pei_data, 6, 0x0040, 1, USB_OC_PIN_SKIP,
+ USB_PORT_INTERNAL);
+ /* P7: BT */
+ pei_data_usb2_port(pei_data, 7, 0x0040, 1, USB_OC_PIN_SKIP,
+ USB_PORT_INTERNAL);
+
+ /* P1: HOST PORT */
+ pei_data_usb3_port(pei_data, 0, 1, 0, 0);
+ /* P2: HOST PORT */
+ pei_data_usb3_port(pei_data, 1, 1, 1, 0);
+ /* P3: RAIDEN */
+ pei_data_usb3_port(pei_data, 2, 1, USB_OC_PIN_SKIP, 0);
+ /* P4: RAIDEN */
+ pei_data_usb3_port(pei_data, 3, 1, USB_OC_PIN_SKIP, 0);
+}
+
+static int broadwell_northbridge_early_init(struct udevice *dev)
+{
+ /* Move earlier? */
+ dm_pci_write_config32(dev, PCIEXBAR + 4, 0);
+ /* 64MiB - 0-63 buses */
+ dm_pci_write_config32(dev, PCIEXBAR, MCFG_BASE_ADDRESS | 4 | 1);
+
+ dm_pci_write_config32(dev, MCHBAR, MCH_BASE_ADDRESS | 1);
+ dm_pci_write_config32(dev, DMIBAR, DMI_BASE_ADDRESS | 1);
+ dm_pci_write_config32(dev, EPBAR, EP_BASE_ADDRESS | 1);
+ writel(EDRAM_BASE_ADDRESS | 1, MCH_BASE_ADDRESS + EDRAMBAR);
+ writel(GDXC_BASE_ADDRESS | 1, MCH_BASE_ADDRESS + GDXCBAR);
+
+ /* Set C0000-FFFFF to access RAM on both reads and writes */
+ dm_pci_write_config8(dev, PAM0, 0x30);
+ dm_pci_write_config8(dev, PAM1, 0x33);
+ dm_pci_write_config8(dev, PAM2, 0x33);
+ dm_pci_write_config8(dev, PAM3, 0x33);
+ dm_pci_write_config8(dev, PAM4, 0x33);
+ dm_pci_write_config8(dev, PAM5, 0x33);
+ dm_pci_write_config8(dev, PAM6, 0x33);
+
+ /* Device enable: IGD and Mini-HD */
+ dm_pci_write_config32(dev, DEVEN, DEVEN_D0EN | DEVEN_D2EN | DEVEN_D3EN);
+
+ return 0;
+}
+
+static int broadwell_northbridge_probe(struct udevice *dev)
+{
+ if (!(gd->flags & GD_FLG_RELOC))
+ return broadwell_northbridge_early_init(dev);
+
+ return 0;
+}
+
+static const struct udevice_id broadwell_northbridge_ids[] = {
+ { .compatible = "intel,broadwell-northbridge" },
+ { }
+};
+
+U_BOOT_DRIVER(broadwell_northbridge_drv) = {
+ .name = "broadwell_northbridge",
+ .id = UCLASS_NORTHBRIDGE,
+ .of_match = broadwell_northbridge_ids,
+ .probe = broadwell_northbridge_probe,
+};