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>
Reviewed-on: http://review.coreboot.org/6395
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <gaumless@gmail.com>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
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 @@
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