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nb/intel/x4x: Cleanup gma.c 

Tidy up the code and move vga_textmode_init() later

Change-Id: I49967e7197416c955ae6c8775eac7d1a60c92d1c
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/13128
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This commit is contained in:
Damien Zammit 2016-01-22 19:13:18 +11:00 committed by Martin Roth
parent d63115daa8
commit 216fc50411
1 changed files with 24 additions and 57 deletions
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81
src/northbridge/intel/x4x/gma.c
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@ -35,27 +35,14 @@
#include <pc80/vga.h>
#include <pc80/vga_io.h>
static struct resource *gtt_res = NULL;
void gtt_write(u32 reg, u32 data)
{
write32(res2mmio(gtt_res, reg, 0), data);
}
static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
u8 *mmio, u32 physbase, u16 piobase, u32 lfb)
u8 *mmio)
{
int i;
u32 hactive, vactive;
vga_gr_write(0x18, 0);
/* Setup GTT. */
for (i = 0; i < 0x2000; i++)
{
outl((i << 2) | 1, piobase);
outl(physbase + (i << 12) + 1, piobase + 4);
}
vga_gr_write(0x18, 0);
write32(mmio + VGA0, 0x31108);
write32(mmio + VGA1, 0x31406);
@ -92,8 +79,6 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
hactive = 640;
vactive = 400;
vga_textmode_init();
mdelay(1);
write32(mmio + FP0(0), 0x31108);
write32(mmio + DPLL(0),
@ -152,7 +137,8 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
write32(mmio + 0x000f000c, 0x00002050);
write32(mmio + 0x00060100, 0x00044000);
mdelay(1);
write32(mmio + PIPECONF(0), PIPECONF_ENABLE | PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
write32(mmio + PIPECONF(0), PIPECONF_ENABLE
| PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
write32(mmio + VGACNTRL, 0x0);
write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888);
@ -168,7 +154,7 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
| ADPA_DPMS_ON
);
write32(mmio + PP_CONTROL, PANEL_POWER_ON);
vga_textmode_init();
/* Enable screen memory. */
vga_sr_write(1, vga_sr_read(1) & ~0x20);
@ -178,6 +164,22 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
write32(mmio + SDEIIR, 0xffffffff);
}
static void native_init(struct device *dev)
{
struct resource *gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
struct northbridge_intel_x4x_config *conf = dev->chip_info;
if (gtt_res && gtt_res->base) {
printk(BIOS_SPEW,
"Initializing VGA without OPROM. MMIO 0x%llx\n",
gtt_res->base);
intel_gma_init(conf, res2mmio(gtt_res, 0, 0));
}
/* Linux relies on VBT for panel info. */
generate_fake_intel_oprom(&conf->gfx, dev, "$VBT EAGLELAKE ");
}
static void gma_func0_init(struct device *dev)
{
u32 reg32;
@ -187,43 +189,10 @@ static void gma_func0_init(struct device *dev)
reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
pci_write_config32(dev, PCI_COMMAND, reg32);
/* Init graphics power management */
gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
struct northbridge_intel_x4x_config *conf = dev->chip_info;
if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) {
/* PCI Init, will run VBIOS */
pci_dev_init(dev);
} else {
u32 physbase;
struct resource *lfb_res;
struct resource *pio_res;
lfb_res = find_resource(dev, PCI_BASE_ADDRESS_2);
pio_res = find_resource(dev, PCI_BASE_ADDRESS_4);
physbase = pci_read_config32(dev, 0x5c) & ~0xf;
if (gtt_res && gtt_res->base && physbase && pio_res && pio_res->base
&& lfb_res && lfb_res->base) {
printk(BIOS_SPEW, "Initializing VGA without OPROM. MMIO 0x%llx\n",
gtt_res->base);
intel_gma_init(conf, res2mmio(gtt_res, 0, 0), physbase,
pio_res->base, lfb_res->base);
}
/* Linux relies on VBT for panel info. */
generate_fake_intel_oprom(&conf->gfx, dev, "$VBT EAGLELAKE ");
}
/* Post VBIOS init */
/* Enable Backlight */
gtt_write(BLC_PWM_CTL2, (1 << 31));
if (conf->gfx.backlight == 0)
gtt_write(BLC_PWM_CTL, 0x06100610);
if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT))
native_init(dev);
else
gtt_write(BLC_PWM_CTL, conf->gfx.backlight);
pci_dev_init(dev);
}
static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
@ -269,8 +238,6 @@ static struct device_operations gma_func0_ops = {
.enable_resources = pci_dev_enable_resources,
.acpi_fill_ssdt_generator = gma_ssdt,
.init = gma_func0_init,
.scan_bus = 0,
.enable = 0,
.ops_pci = &gma_pci_ops,
};