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authorStefan Reinauer <reinauer@chromium.org>2013-03-13 17:13:32 -0700
committerRonald G. Minnich <rminnich@gmail.com>2013-03-18 17:07:01 +0100
commitb7ecf6d83047e70ed5846ac35833a04983318b9c (patch)
treea533c85c84bc40fe249b893f63fda1857a1ab435 /src/mainboard/google/stout/mainboard.c
parentafad056c2298824caeb2c58d1541576c73bfef5d (diff)
downloadcoreboot-b7ecf6d83047e70ed5846ac35833a04983318b9c.tar.xz
Add support for "Stout" Chromebook
We're happy to announce coreboot support for the "Stout" Chromebook, a.k.a Lenovo X131e Chromebook. Change-Id: I9b995f8d0dd48e41c788b7c3d35b4fac5840e425 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2636 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/mainboard/google/stout/mainboard.c')
-rw-r--r--src/mainboard/google/stout/mainboard.c292
1 files changed, 292 insertions, 0 deletions
diff --git a/src/mainboard/google/stout/mainboard.c b/src/mainboard/google/stout/mainboard.c
new file mode 100644
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+++ b/src/mainboard/google/stout/mainboard.c
@@ -0,0 +1,292 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <types.h>
+#include <string.h>
+#include <device/device.h>
+#include <device/pci_def.h>
+#include <device/pci_ops.h>
+#include <console/console.h>
+#if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL
+#include <x86emu/x86emu.h>
+#endif
+#include <pc80/mc146818rtc.h>
+#include <arch/acpi.h>
+#include <arch/io.h>
+#include <arch/interrupt.h>
+#include <arch/coreboot_tables.h>
+#include "hda_verb.h"
+#include "onboard.h"
+#include "ec.h"
+#include <southbridge/intel/bd82x6x/pch.h>
+#include <smbios.h>
+#include <device/pci.h>
+#include <ec/quanta/it8518/ec.h>
+
+void mainboard_suspend_resume(void)
+{
+ /* Call SMM finalize() handlers before resume */
+ outb(0xcb, 0xb2);
+
+ /* Stout EC needs to be put back in ACPI mode */
+ ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
+}
+
+#if defined(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) && CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+static int int15_handler(struct eregs *regs)
+{
+ int res=-1;
+
+ printk(BIOS_DEBUG, "%s: INT15 function %04x!\n",
+ __func__, regs->eax & 0xffff);
+
+ switch(regs->eax & 0xffff) {
+ case 0x5f34:
+ /*
+ * Set Panel Fitting Hook:
+ * bit 2 = Graphics Stretching
+ * bit 1 = Text Stretching
+ * bit 0 = Centering (do not set with bit1 or bit2)
+ * 0 = video bios default
+ */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffffff00;
+ regs->ecx |= 0x00; /* Use video bios default */
+ res = 0;
+ break;
+ case 0x5f35:
+ /*
+ * Boot Display Device Hook:
+ * bit 0 = CRT
+ * bit 1 = TV (eDP)
+ * bit 2 = EFP
+ * bit 3 = LFP
+ * bit 4 = CRT2
+ * bit 5 = TV2 (eDP)
+ * bit 6 = EFP2
+ * bit 7 = LFP2
+ */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffff0000;
+ regs->ecx |= 0x0000; /* Use video bios default */
+ res = 0;
+ break;
+ case 0x5f51:
+ /*
+ * Hook to select active LFP configuration:
+ * 00h = No LVDS, VBIOS does not enable LVDS
+ * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
+ * 02h = SVDO-LVDS, LFP driven by SVDO decoder
+ * 03h = eDP, LFP Driven by Int-DisplayPort encoder
+ */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffff0000;
+ regs->ecx |= 0x0001;
+ res = 0;
+ break;
+ case 0x5f70:
+ switch ((regs->ecx >> 8) & 0xff) {
+ case 0:
+ /* Get Mux */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffff0000;
+ regs->ecx |= 0x0000;
+ res = 0;
+ break;
+ case 1:
+ /* Set Mux */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffff0000;
+ regs->ecx |= 0x0000;
+ res = 0;
+ break;
+ case 2:
+ /* Get SG/Non-SG mode */
+ regs->eax &= 0xffff0000;
+ regs->eax |= 0x005f;
+ regs->ecx &= 0xffff0000;
+ regs->ecx |= 0x0000;
+ res = 0;
+ break;
+ default:
+ /* Interrupt was not handled */
+ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n",
+ ((regs->ecx >> 8) & 0xff));
+ return 0;
+ }
+ break;
+
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
+ regs->eax & 0xffff);
+ break;
+ }
+ return res;
+}
+#endif
+
+#if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL
+static int int15_handler(void)
+{
+ printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
+ __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX);
+
+ switch (M.x86.R_AX) {
+ case 0x5f34:
+ /*
+ * Set Panel Fitting Hook:
+ * bit 2 = Graphics Stretching
+ * bit 1 = Text Stretching
+ * bit 0 = Centering (do not set with bit1 or bit2)
+ */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CL = 0x00;
+ break;
+ case 0x5f35:
+ /*
+ * Boot Display Device Hook:
+ * bit 0 = CRT
+ * bit 1 = TV (eDP)
+ * bit 2 = EFP
+ * bit 3 = LFP
+ * bit 4 = CRT2
+ * bit 5 = TV2 (eDP)
+ * bit 6 = EFP2
+ * bit 7 = LFP2
+ */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CX = 0x0000; /* Use video bios default */
+ break;
+ case 0x5f51:
+ /*
+ * Hook to select active LFP configuration:
+ * 00h = No LVDS, VBIOS does not enable LVDS
+ * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
+ * 02h = SVDO-LVDS, LFP driven by SVDO decoder
+ * 03h = eDP, LFP Driven by Int-DisplayPort encoder
+ */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CX = 1;
+ break;
+ case 0x5f70:
+ switch (M.x86.R_CH) {
+ case 0:
+ /* Get Mux */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CL = 0;
+ break;
+ case 1:
+ /* Set Mux */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CX = 0;
+ break;
+ case 2:
+ /* Get SG/Non-SG mode */
+ M.x86.R_AX = 0x005f;
+ M.x86.R_CX = 0;
+ break;
+ default:
+ /* Interrupt was not handled */
+ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n",
+ M.x86.R_CH);
+ return 0;
+ }
+ break;
+ default:
+ /* Interrupt was not handled */
+ printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n",
+ M.x86.R_AX);
+ return 0;
+ }
+
+ /* Interrupt handled */
+ return 1;
+}
+#endif
+
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+static void int15_install(void)
+{
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+ typedef int (* yabel_handleIntFunc)(void);
+ extern yabel_handleIntFunc yabel_intFuncArray[256];
+ yabel_intFuncArray[0x15] = int15_handler;
+#endif
+#ifdef CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+ mainboard_interrupt_handlers(0x15, &int15_handler);
+#endif
+}
+#endif
+
+/* Audio Setup */
+
+extern const u32 * cim_verb_data;
+extern u32 cim_verb_data_size;
+extern const u32 * pc_beep_verbs;
+extern u32 pc_beep_verbs_size;
+
+static void verb_setup(void)
+{
+ cim_verb_data = mainboard_cim_verb_data;
+ cim_verb_data_size = sizeof(mainboard_cim_verb_data);
+ pc_beep_verbs = mainboard_pc_beep_verbs;
+ pc_beep_verbs_size = mainboard_pc_beep_verbs_size;
+}
+
+static void mainboard_init(device_t dev)
+{
+ struct device *ethernet_dev = NULL;
+
+ /* Initialize the Embedded Controller */
+ stout_ec_init();
+
+ /*
+ * Battery life time - LAN PCIe should enter ASPM L1 to save
+ * power when LAN connection is idle.
+ * enable CLKREQ: LAN pci config space 0x81h=01
+ */
+ ethernet_dev = dev_find_device(STOUT_NIC_VENDOR_ID,
+ STOUT_NIC_DEVICE_ID, dev);
+
+ if (ethernet_dev != NULL)
+ pci_write_config8(ethernet_dev, 0x81, 0x01);
+}
+
+// mainboard_enable is executed as first thing after
+// enumerate_buses().
+
+static void mainboard_enable(device_t dev)
+{
+ dev->ops->init = mainboard_init;
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+ /* Install custom int15 handler for VGA OPROM */
+ int15_install();
+#endif
+ verb_setup();
+}
+
+struct chip_operations mainboard_ops = {
+ .enable_dev = mainboard_enable,
+};