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i945 GMA: restore tft brightness from cmos 

Change-Id: Iaf10f125425a1abcf17ffca1d6e246f955f941cc
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/24
Tested-by: build bot (Jenkins)
This commit is contained in:
Sven Schnelle 2011-06-12 14:30:10 +02:00
parent d4dc9a5a03
commit b629d14bec
3 changed files with 7 additions and 4 deletions
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2
src/mainboard/lenovo/t60/romstage.c
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@ -336,6 +336,4 @@ void main(unsigned long bist)
pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, SKPAD_ACPI_S3_MAGIC); pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, SKPAD_ACPI_S3_MAGIC);
} }
#endif #endif
/* Set legacy Brightness control to full brightness */
pci_write_config8(PCI_DEV(0, 2, 1), 0xf4, 0xff);
} }

2
src/mainboard/lenovo/x60/romstage.c
View File

@ -338,6 +338,4 @@ void main(unsigned long bist)
pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, SKPAD_ACPI_S3_MAGIC); pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, SKPAD_ACPI_S3_MAGIC);
} }
#endif #endif
/* Set legacy Brightness control to full brightness */
pci_write_config8(PCI_DEV(0, 2, 1), 0xf4, 0xff);
} }

7
src/northbridge/intel/i945/gma.c
View File

@ -21,6 +21,7 @@
#include <device/device.h> #include <device/device.h>
#include <device/pci.h> #include <device/pci.h>
#include <device/pci_ids.h> #include <device/pci_ids.h>
#include <pc80/mc146818rtc.h>
static void gma_func0_init(struct device *dev) static void gma_func0_init(struct device *dev)
{ {
@ -36,11 +37,17 @@ static void gma_func0_init(struct device *dev)
static void gma_func1_init(struct device *dev) static void gma_func1_init(struct device *dev)
{ {
u32 reg32; u32 reg32;
u8 val;
/* IGD needs to be Bus Master, also enable IO accesss */ /* IGD needs to be Bus Master, also enable IO accesss */
reg32 = pci_read_config32(dev, PCI_COMMAND); reg32 = pci_read_config32(dev, PCI_COMMAND);
pci_write_config32(dev, PCI_COMMAND, reg32 | pci_write_config32(dev, PCI_COMMAND, reg32 |
PCI_COMMAND_MASTER | PCI_COMMAND_IO); PCI_COMMAND_MASTER | PCI_COMMAND_IO);
if (!get_option(&val, "tft_brightness"))
pci_write_config8(dev, 0xf4, val);
else
pci_write_config8(dev, 0xf4, 0xff);
} }
static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device) static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)