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-rw-r--r--resources/libreboot/patch/0009-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch232
1 files changed, 0 insertions, 232 deletions
diff --git a/resources/libreboot/patch/0009-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch b/resources/libreboot/patch/0009-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch
deleted file mode 100644
index f76926b5..00000000
--- a/resources/libreboot/patch/0009-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch
+++ /dev/null
@@ -1,232 +0,0 @@
-From 76a977c5fb717315154317ea4ccb0d46b329731a Mon Sep 17 00:00:00 2001
-From: Timothy Pearson <tpearson@raptorengineeringinc.com>
-Date: Sun, 5 Apr 2015 18:10:09 -0500
-Subject: [PATCH 09/22] mainboard/lenovo/t400: Add initial hybrid graphics
- support
-
-TEST: Booted T400 with Intel/ATI hybrid graphics in integrated
-mode with native Intel graphics init and verified integrated
-panel framebuffer functionality in SeaBIOS and Linux.
-
-Change-Id: I37e72c5dad0d7ab3915cc3d439ae9a4a9b3787e3
-Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
----
- src/mainboard/lenovo/t400/cmos.default | 1 +
- src/mainboard/lenovo/t400/cmos.layout | 8 +-
- src/mainboard/lenovo/t400/romstage.c | 143 +++++++++++++++++++++++++++++++++
- 3 files changed, 151 insertions(+), 1 deletion(-)
-
-diff --git a/src/mainboard/lenovo/t400/cmos.default b/src/mainboard/lenovo/t400/cmos.default
-index 67b8920..06eec57 100644
---- a/src/mainboard/lenovo/t400/cmos.default
-+++ b/src/mainboard/lenovo/t400/cmos.default
-@@ -14,3 +14,4 @@ sticky_fn=Disable
- power_management_beeps=Enable
- low_battery_beep=Enable
- sata_mode=AHCI
-+hybrid_graphics_mode=Integrated Only
-\ No newline at end of file
-diff --git a/src/mainboard/lenovo/t400/cmos.layout b/src/mainboard/lenovo/t400/cmos.layout
-index fbb2293..687b284 100644
---- a/src/mainboard/lenovo/t400/cmos.layout
-+++ b/src/mainboard/lenovo/t400/cmos.layout
-@@ -86,7 +86,10 @@ entries
- # coreboot config options: northbridge
- 941 3 e 11 gfx_uma_size
-
--#944 2 r 0 unused
-+# coreboot config options: graphics
-+944 2 e 12 hybrid_graphics_mode
-+
-+#946 2 r 0 unused
-
- # coreboot config options: check sums
- 984 16 h 0 check_sum
-@@ -138,6 +141,9 @@ enumerations
- 11 3 128M
- 11 5 96M
- 11 6 160M
-+12 0 Integrated Only
-+12 1 Discrete Only
-+12 2 Switchable
-
- # -----------------------------------------------------------------
- checksums
-diff --git a/src/mainboard/lenovo/t400/romstage.c b/src/mainboard/lenovo/t400/romstage.c
-index 5f50f32..20071c0 100644
---- a/src/mainboard/lenovo/t400/romstage.c
-+++ b/src/mainboard/lenovo/t400/romstage.c
-@@ -1,6 +1,7 @@
- /*
- * This file is part of the coreboot project.
- *
-+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
- * Copyright (C) 2012 secunet Security Networks AG
- *
- * This program is free software; you can redistribute it and/or
-@@ -38,6 +39,118 @@
- #define LPC_DEV PCI_DEV(0, 0x1f, 0)
- #define MCH_DEV PCI_DEV(0, 0, 0)
-
-+#define HYBRID_GRAPHICS_INTEGRATED_ONLY 0
-+#define HYBRID_GRAPHICS_DISCRETE_ONLY 1
-+#define HYBRID_GRAPHICS_SWITCHABLE 2
-+
-+#define HYBRID_GRAPHICS_GP_LVL_BITS 0x004a0000
-+#define HYBRID_GRAPHICS_GP_LVL2_BITS 0x00020000
-+
-+#define HYBRID_GRAPHICS_DETECT_GP_BITS 0x00000010
-+
-+#define HYBRID_GRAPHICS_INT_CLAIM_VGA 0x2
-+#define HYBRID_GRAPHICS_SEC_VGA_EN 0x2
-+
-+static void hybrid_graphics_configure_switchable_graphics(bool enable)
-+{
-+ uint32_t tmp;
-+
-+ if (enable) {
-+ /* Disable integrated graphics legacy VGA cycles */
-+ tmp = pci_read_config16(MCH_DEV, D0F0_GGC);
-+ pci_write_config16(MCH_DEV, D0F0_GGC, tmp | HYBRID_GRAPHICS_INT_CLAIM_VGA);
-+
-+ /* Enable secondary VGA controller */
-+ tmp = pci_read_config16(MCH_DEV, D0F0_DEVEN);
-+ pci_write_config16(MCH_DEV, D0F0_DEVEN, tmp | HYBRID_GRAPHICS_SEC_VGA_EN);
-+ }
-+ else {
-+ /* Enable integrated graphics legacy VGA cycles */
-+ tmp = pci_read_config16(MCH_DEV, D0F0_GGC);
-+ pci_write_config16(MCH_DEV, D0F0_GGC, tmp & ~HYBRID_GRAPHICS_INT_CLAIM_VGA);
-+
-+ /* Disable secondary VGA controller */
-+ tmp = pci_read_config16(MCH_DEV, D0F0_DEVEN);
-+ pci_write_config16(MCH_DEV, D0F0_DEVEN, tmp & ~HYBRID_GRAPHICS_SEC_VGA_EN);
-+ }
-+}
-+
-+static void hybrid_graphics_set_up_gpio(void)
-+{
-+ uint32_t tmp;
-+
-+ /* Enable hybrid graphics GPIO lines */
-+ tmp = inl(DEFAULT_GPIOBASE + GP_IO_USE_SEL);
-+ tmp = tmp | HYBRID_GRAPHICS_GP_LVL_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_IO_USE_SEL);
-+
-+ tmp = inl(DEFAULT_GPIOBASE + GP_IO_USE_SEL2);
-+ tmp = tmp | HYBRID_GRAPHICS_GP_LVL2_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_IO_USE_SEL2);
-+
-+ /* Set hybrid graphics control GPIO lines to output */
-+ tmp = inl(DEFAULT_GPIOBASE + GP_IO_SEL);
-+ tmp = tmp & ~HYBRID_GRAPHICS_GP_LVL_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_IO_SEL);
-+
-+ tmp = inl(DEFAULT_GPIOBASE + GP_IO_SEL2);
-+ tmp = tmp & ~HYBRID_GRAPHICS_GP_LVL2_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_IO_SEL2);
-+
-+ /* Set hybrid graphics detect GPIO lines to input */
-+ tmp = inl(DEFAULT_GPIOBASE + GP_IO_SEL);
-+ tmp = tmp | HYBRID_GRAPHICS_DETECT_GP_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_IO_SEL);
-+}
-+
-+static bool hybrid_graphics_installed(void)
-+{
-+ if (inl(DEFAULT_GPIOBASE + GP_LVL) & HYBRID_GRAPHICS_DETECT_GP_BITS)
-+ return false;
-+ else
-+ return true;
-+}
-+
-+static void hybrid_graphics_switch_to_integrated_graphics(void)
-+{
-+ uint32_t tmp;
-+
-+ /* Disable switchable graphics */
-+ hybrid_graphics_configure_switchable_graphics(false);
-+
-+ /* Configure muxes */
-+ tmp = inl(DEFAULT_GPIOBASE + GP_LVL);
-+ tmp = tmp & ~HYBRID_GRAPHICS_GP_LVL_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_LVL);
-+
-+ tmp = inl(DEFAULT_GPIOBASE + GP_LVL2);
-+ tmp = tmp & ~HYBRID_GRAPHICS_GP_LVL2_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_LVL2);
-+}
-+
-+static void hybrid_graphics_switch_to_discrete_graphics(void)
-+{
-+ uint32_t tmp;
-+
-+ /* Disable switchable graphics */
-+ hybrid_graphics_configure_switchable_graphics(false);
-+
-+ /* Configure muxes */
-+ tmp = inl(DEFAULT_GPIOBASE + GP_LVL);
-+ tmp = tmp | HYBRID_GRAPHICS_GP_LVL_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_LVL);
-+
-+ tmp = inl(DEFAULT_GPIOBASE + GP_LVL2);
-+ tmp = tmp | HYBRID_GRAPHICS_GP_LVL2_BITS;
-+ outl(tmp, DEFAULT_GPIOBASE + GP_LVL2);
-+}
-+
-+static void hybrid_graphics_switch_to_dual_graphics(void)
-+{
-+ /* Enable switchable graphics */
-+ hybrid_graphics_configure_switchable_graphics(true);
-+}
-+
- static void default_southbridge_gpio_setup(void)
- {
- outl(0x197e23fe, DEFAULT_GPIOBASE + GP_IO_USE_SEL);
-@@ -99,6 +212,31 @@ void main(unsigned long bist)
-
- default_southbridge_gpio_setup();
-
-+ uint8_t hybrid_graphics_mode = HYBRID_GRAPHICS_INTEGRATED_ONLY;
-+ get_option(&hybrid_graphics_mode, "hybrid_graphics_mode");
-+
-+ /* Set up hybrid graphics */
-+ hybrid_graphics_set_up_gpio();
-+ if (hybrid_graphics_installed()) {
-+ /* Select appropriate hybrid graphics device */
-+ printk(BIOS_DEBUG, "Hybrid graphics available, setting mode %d\n", hybrid_graphics_mode);
-+ if (hybrid_graphics_mode == HYBRID_GRAPHICS_INTEGRATED_ONLY)
-+ hybrid_graphics_switch_to_integrated_graphics();
-+ else if (hybrid_graphics_mode == HYBRID_GRAPHICS_DISCRETE_ONLY)
-+ hybrid_graphics_switch_to_discrete_graphics();
-+ else if (hybrid_graphics_mode == HYBRID_GRAPHICS_SWITCHABLE)
-+ hybrid_graphics_switch_to_integrated_graphics();
-+ /* Switchable graphics are fully enabled after raminit */
-+ /* FIXME
-+ * Enabling switchable graphics prevents bootup!
-+ * Debug and fix appropriately...
-+ */
-+ }
-+ else {
-+ printk(BIOS_DEBUG, "Hybrid graphics not installed\n");
-+ hybrid_graphics_switch_to_integrated_graphics();
-+ }
-+
- /* ASPM related setting, set early by original BIOS. */
- DMIBAR16(0x204) &= ~(3 << 10);
-
-@@ -178,6 +316,11 @@ void main(unsigned long bist)
- outl(inl(DEFAULT_GPIOBASE + 0x38) & ~0x400, DEFAULT_GPIOBASE + 0x38);
-
- cbmem_initted = !cbmem_recovery(s3resume);
-+
-+ if (hybrid_graphics_installed())
-+ if (hybrid_graphics_mode == HYBRID_GRAPHICS_SWITCHABLE)
-+ hybrid_graphics_switch_to_dual_graphics();
-+
- #if CONFIG_HAVE_ACPI_RESUME
- /* If there is no high memory area, we didn't boot before, so
- * this is not a resume. In that case we just create the cbmem toc.
---
-1.9.1
-
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-02 10:22:35 +0000