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authorArthur Heymans <arthur@aheymans.xyz>2016-10-24 17:49:35 +0200
committerMartin Roth <martinroth@google.com>2016-10-26 22:39:35 +0200
commitf8a4f41d48acc9ecffc9d74185fad0cb8651f4da (patch)
treedb4d7e01888b30d72af72cad081098d93b9cc719 /src/northbridge
parent606b8bccb53e5bbc840d29657faaf333eff51e38 (diff)
nb/x4x/gma.c: Remove writes to DP, FDI registers
Those registers are only used on more recent Intel platforms featuring a PCH. The DP registers on G4X hardware are at a different offset. Change-Id: I4660e547426ccec0b2095d897e4a8c86e0acf41e Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/17111 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/x4x/gma.c23
1 files changed, 0 insertions, 23 deletions
diff --git a/src/northbridge/intel/x4x/gma.c b/src/northbridge/intel/x4x/gma.c
index 749a7c827a..62e28aafc4 100644
--- a/src/northbridge/intel/x4x/gma.c
+++ b/src/northbridge/intel/x4x/gma.c
@@ -74,12 +74,6 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
u32 pixel_n = 1;
u32 pixel_m1 = 1;
u32 pixel_m2 = 1;
- u32 link_frequency = info->gfx.link_frequency_270_mhz ? 270000 : 162000;
- u32 data_m1;
- u32 data_n1 = 0x00800000;
- u32 link_m1;
- u32 link_n1 = 0x00040000;
-
vga_gr_write(0x18, 0);
@@ -210,10 +204,6 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
return;
}
- link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency;
- data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock)
- / (link_frequency * 8 * 4);
-
printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n",
hactive, vactive);
printk(BIOS_DEBUG, "Borders %d x %d\n",
@@ -228,12 +218,6 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
? "Spread spectrum clock\n" : "DREF clock\n"));
printk(BIOS_DEBUG, "Polarities %d, %d\n",
hpolarity, vpolarity);
- printk(BIOS_DEBUG, "Data M1=%d, N1=%d\n",
- data_m1, data_n1);
- printk(BIOS_DEBUG, "Link frequency %d kHz\n",
- link_frequency);
- printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n",
- link_m1, link_n1);
printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d, P2=%d\n",
pixel_n, pixel_m1, pixel_m2, pixel_p1, pixel_p2);
printk(BIOS_DEBUG, "Pixel clock %d kHz\n",
@@ -305,13 +289,6 @@ static void intel_gma_init(const struct northbridge_intel_x4x_config *info,
}
mdelay(1);
-
- write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1);
- write32(mmio + PIPE_DATA_N1(0), data_n1);
- write32(mmio + PIPE_LINK_M1(0), link_m1);
- write32(mmio + PIPE_LINK_N1(0), link_n1);
-
- mdelay(1);
write32(mmio + PIPECONF(0), PIPECONF_BPP_6);
write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
write32(mmio + PIPECONF(0), PIPECONF_ENABLE