diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/t400_8mb/0001-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/t400_8mb/0001-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/t400_8mb/0001-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch b/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/t400_8mb/0001-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch deleted file mode 100644 index dae11e4..0000000 --- a/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/t400_8mb/0001-mainboard-lenovo-t400-Add-initial-hybrid-graphics-su.patch +++ /dev/null @@ -1,232 +0,0 @@ -From 82d185307ef39c0ee9a95806a2f21679479721b4 Mon Sep 17 00:00:00 2001 -From: Timothy Pearson <tpearson@raptorengineeringinc.com> -Date: Sun, 5 Apr 2015 18:10:09 -0500 -Subject: [PATCH 1/9] 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 2dc91bf..44f5d04 100644 ---- a/src/mainboard/lenovo/t400/cmos.layout -+++ b/src/mainboard/lenovo/t400/cmos.layout -@@ -85,7 +85,10 @@ 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 -@@ -137,6 +140,9 @@ 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 a739d18..c62df60 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 -@@ -37,6 +38,118 @@ - #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); -@@ -98,6 +211,31 @@ 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); - -@@ -177,6 +315,11 @@ 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 - |