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Diffstat (limited to 'src/mainboard/google/slippy/gma.c')
-rw-r--r--src/mainboard/google/slippy/gma.c104
1 files changed, 46 insertions, 58 deletions
diff --git a/src/mainboard/google/slippy/gma.c b/src/mainboard/google/slippy/gma.c
index 4b002ecddf..7c95e40667 100644
--- a/src/mainboard/google/slippy/gma.c
+++ b/src/mainboard/google/slippy/gma.c
@@ -87,33 +87,13 @@
static unsigned int *mmio;
static unsigned int graphics;
-static unsigned short addrport;
-static unsigned short dataport;
static unsigned int physbase;
-static int ioread = 0, iowrite = 0;
-
void ug1(int);
void ug2(int);
void ug22(int);
void ug3(int);
-unsigned long io_i915_read32(unsigned long addr)
-{
- unsigned long val;
- outl(addr, addrport);
- val = inl(dataport);
- ioread += 2;
- return val;
-}
-
-void io_i915_write32(unsigned long val, unsigned long addr)
-{
- outl(addr, addrport);
- outl(val, dataport);
- iowrite += 2;
-}
-
/* GTT is the Global Translation Table for the graphics pipeline.
* It is used to translate graphics addresses to physical
* memory addresses. As in the CPU, GTTs map 4K pages.
@@ -133,6 +113,8 @@ void io_i915_write32(unsigned long val, unsigned long addr)
* starting at physbase.
*/
+#define GTT_PTE_BASE (2 << 20)
+
static void
setgtt(int start, int end, unsigned long base, int inc)
{
@@ -144,7 +126,8 @@ setgtt(int start, int end, unsigned long base, int inc)
* the values that mrc does no
* useful setup before we run this.
*/
- io_i915_write32(word|1,(i*4)|1);
+ gtt_write(GTT_PTE_BASE + i * 4, word|1);
+ gtt_read(GTT_PTE_BASE + i * 4);
}
}
@@ -157,7 +140,7 @@ static void palette(void)
unsigned long color = 0;
for(i = 0; i < 256; i++, color += 0x010101){
- io_i915_write32(color, _LGC_PALETTE_A + (i<<2));
+ gtt_write(_LGC_PALETTE_A + (i<<2),color);
}
}
@@ -251,8 +234,8 @@ void mainboard_train_link(struct intel_dp *intel_dp)
u8 read_val;
u8 link_status[DP_LINK_STATUS_SIZE];
- io_i915_write32(0x80040000,DP_TP_CTL_A);
- io_i915_write32( DP_PORT_EN | DP_LINK_TRAIN_PAT_1 | DP_LINK_TRAIN_PAT_1_CPT | DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0 | DP_PORT_WIDTH_1 | DP_PLL_FREQ_270MHZ | DP_SYNC_VS_HIGH |0x80000011,DP_A);
+ gtt_write(DP_TP_CTL(intel_dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE);
+ gtt_write(DP_A, DP_PORT_EN | DP_LINK_TRAIN_PAT_1 | DP_LINK_TRAIN_PAT_1_CPT | DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0 | DP_PORT_WIDTH_1 | DP_PLL_FREQ_270MHZ | DP_SYNC_VS_HIGH |0x80000011);
intel_dp_get_training_pattern(intel_dp, &read_val);
intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_1 | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH);
@@ -260,7 +243,7 @@ void mainboard_train_link(struct intel_dp *intel_dp)
intel_dp_set_training_lane0(intel_dp, DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_0);
intel_dp_get_link_status(intel_dp, link_status);
- io_i915_write32(0x80040100,DP_TP_CTL_A);
+ gtt_write(DP_TP_CTL(intel_dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT2);
intel_dp_get_training_pattern(intel_dp, &read_val);
intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_2 | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH);
@@ -270,34 +253,54 @@ void mainboard_train_link(struct intel_dp *intel_dp)
intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_DISABLE | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH);
}
-int i915lightup(unsigned int physbase, unsigned int iobase, unsigned int mmio,
- unsigned int gfx, unsigned int init_fb);
-int i915lightup(unsigned int pphysbase, unsigned int piobase,
- unsigned int pmmio, unsigned int pgfx, unsigned int init_fb)
+#define TEST_GFX 0
+
+#if TEST_GFX
+static void test_gfx(struct intel_dp *dp)
+{
+ int i;
+
+ /* This is a sanity test code which fills the screen with two bands --
+ green and blue. It is very useful to ensure all the initializations
+ are made right. Thus, to be used only for testing, not otherwise
+ */
+ for (i = 0; i < (dp->edid.va - 4); i++) {
+ u32 *l;
+ int j;
+ u32 tcolor = 0x0ff;
+ for (j = 0; j < (dp->edid.ha-4); j++) {
+ if (j == (dp->edid.ha/2)) {
+ tcolor = 0xff00;
+ }
+ l = (u32*)(graphics + i * dp->stride + j * sizeof(tcolor));
+ memcpy(l,&tcolor,sizeof(tcolor));
+ }
+ }
+}
+#else
+static void test_gfx(struct intel_dp *dp) {}
+#endif
+
+int i915lightup(unsigned int pphysbase, unsigned int pmmio,
+ unsigned int pgfx, unsigned int init_fb)
{
int must_cycle_power = 0;
struct intel_dp adp, *dp = &adp;
- /* frame buffer pointer */
- /* u32 *l; */
int i;
int edid_ok;
- /* u32 tcolor = 0xff; */
int pixels = FRAME_BUFFER_BYTES/64;
mmio = (void *)pmmio;
- addrport = piobase;
- dataport = addrport + 4;
physbase = pphysbase;
graphics = pgfx;
printk(BIOS_SPEW,
"i915lightup: graphics %p mmio %p"
- "addrport %04x physbase %08x\n",
- (void *)graphics, mmio, addrport, physbase);
+ "physbase %08x\n",
+ (void *)graphics, mmio, physbase);
void runio(struct intel_dp *dp);
void runlinux(struct intel_dp *dp);
-
- dp->gen = 8; // ??
+ dp->gen = 8; // This is gen 8 which we believe is Haswell
dp->is_haswell = 1;
dp->DP = 0x2;
/* These values are used for training the link */
@@ -308,6 +311,7 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase,
dp->panel_power_cycle_delay = 600;
dp->pipe = PIPE_A;
dp->port = PORT_A;
+ dp->plane = PLANE_A;
dp->clock = 160000;
dp->bpp = 32;
dp->type = INTEL_OUTPUT_EDP;
@@ -327,8 +331,6 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase,
memset((void*)graphics, 0, 4096);
}
- //intel_prepare_ddi_buffers(0, 0);
- //ironlake_edp_panel_vdd_on(dp);
dp->address = 0x50;
if ( !intel_dp_get_dpcd(dp) )
@@ -351,9 +353,7 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase,
dp_init_dim_regs(dp);
- /* more undocumented stuff. */
- /* possibly not even needed. */
- io_i915_write32(0x00000021,0x6f410);
+ intel_ddi_set_pipe_settings(dp);
runio(dp);
@@ -362,31 +362,19 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase,
pixels = dp->edid.ha * (dp->edid.va-4) * 4;
printk(BIOS_SPEW, "ha=%d, va=%d\n",dp->edid.ha, dp->edid.va);
- /* for (i = 0; i < (dp->edid.va - 4); i++) { */
- /* int j; */
- /* tcolor = 0x0ff; */
- /* for (j = 0; j < (dp->edid.ha-4); j++) { */
- /* if (j == (dp->edid.ha/2)) { */
- /* tcolor = 0xff00; */
- /* } */
- /* l = (u32*)(graphics + i * dp->stride + j * sizeof(tcolor)); */
- /* memcpy(l,&tcolor,sizeof(tcolor)); */
- /* } */
- /* } */
+ test_gfx(dp);
set_vbe_mode_info_valid(&dp->edid, graphics);
i915_init_done = 1;
- //io_i915_write32( 0x80000000,BLC_PWM_CPU_CTL2);
- //io_i915_write32( 0x80000000,BLC_PWM_PCH_CTL1);
return i915_init_done;
fail:
printk(BIOS_SPEW, "Graphics could not be started;");
if (0 && must_cycle_power){
printk(BIOS_SPEW, "Turn off power and wait ...");
- io_i915_write32(0xabcd0000, PCH_PP_CONTROL);
+ gtt_write(PCH_PP_CONTROL,0xabcd0000);
udelay(600000);
- io_i915_write32(0xabcd000f, PCH_PP_CONTROL);
+ gtt_write(PCH_PP_CONTROL,0xabcd000f);
}
printk(BIOS_SPEW, "Returning.\n");
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-30 08:00:30 +0000