Edward O'Callaghan (eocallaghan@alterapraxis.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6395
-gerrit
commit 396845a095863ef6b0999c0c2a90da9677eac07b Author: Edward O'Callaghan eocallaghan@alterapraxis.com Date: Tue Jul 29 14:42:26 2014 +1000
lenovo/t530: Use native LVDS gfx init
As introduced in: 1783a3c ivybridge: LVDS gfx init.
The panel on the T530 is a AUO B156HW01 V.4, 40 pin LVDS (2 ch, 6-bit). Tx parameters derived from datasheet table.
Change-Id: I2e3b56a2a3d1ede08a704b839cc11fe6d685cf5b Signed-off-by: Edward O'Callaghan eocallaghan@alterapraxis.com --- src/mainboard/lenovo/t530/Kconfig | 6 ++++++ src/mainboard/lenovo/t530/devicetree.cb | 10 ++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/src/mainboard/lenovo/t530/Kconfig b/src/mainboard/lenovo/t530/Kconfig index 8e49277..c34b647 100644 --- a/src/mainboard/lenovo/t530/Kconfig +++ b/src/mainboard/lenovo/t530/Kconfig @@ -14,6 +14,12 @@ config BOARD_SPECIFIC_OPTIONS # dummy select HAVE_ACPI_RESUME select HAVE_SMI_HANDLER select INTEL_INT15 + select EARLY_CBMEM_INIT + select VGA + select INTEL_EDID + select MAINBOARD_HAS_NATIVE_VGA_INIT + select MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG + select IVYBRIDGE_LVDS
# Workaround for EC/KBC IRQ1. select SERIRQ_CONTINUOUS_MODE diff --git a/src/mainboard/lenovo/t530/devicetree.cb b/src/mainboard/lenovo/t530/devicetree.cb index 6a09004..b22d405 100644 --- a/src/mainboard/lenovo/t530/devicetree.cb +++ b/src/mainboard/lenovo/t530/devicetree.cb @@ -8,8 +8,14 @@ chip northbridge/intel/sandybridge register "gpu_panel_power_cycle_delay" = "6" # T7: 500ms register "gpu_panel_power_up_delay" = "100" # T1+T2: 10ms register "gpu_panel_power_down_delay" = "100" # T5+T6: 10ms - register "gpu_panel_power_backlight_on_delay" = "2100" # T3: 210ms - register "gpu_panel_power_backlight_off_delay" = "2100" # T4: 210ms + register "gpu_panel_power_backlight_on_delay" = "2000" # T3: 200ms + register "gpu_panel_power_backlight_off_delay" = "2000" # T4: 200ms + register "gpu_use_spread_spectrum_clock" = "1" + register "gpu_lvds_dual_channel" = "1" + register "gpu_link_frequency_270_mhz" = "1" + register "gpu_lvds_num_lanes" = "1" + register "gpu_cpu_backlight" = "0x1155" + register "gpu_pch_backlight" = "0x11551155"
device cpu_cluster 0 on chip cpu/intel/socket_rPGA989
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Edward O'Callaghan