diff options
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/slippy/gma.c | 103 |
1 files changed, 16 insertions, 87 deletions
diff --git a/src/mainboard/google/slippy/gma.c b/src/mainboard/google/slippy/gma.c index b38cceda5f..4b002ecddf 100644 --- a/src/mainboard/google/slippy/gma.c +++ b/src/mainboard/google/slippy/gma.c @@ -43,6 +43,7 @@ #include <cpu/x86/msr.h> #include <edid.h> #include <drivers/intel/gma/i915.h> + /* * Here is the rough outline of how we bring up the display: * 1. Upon power-on Sink generates a hot plug detection pulse thru HPD @@ -160,87 +161,6 @@ static void palette(void) } } -/* this is code known to be needed for FUI, and useful - * but not essential otherwise. At some point, we hope, - * it's always going to be on. It gets the chip - * into a known good state - * -- including turning on the power well -- - * which we're not sure is being done correctly. - * Does it belong here? It belongs somewhere in the - * northbridge, that we know. - */ -static void gma_fui_init(int noisy) -{ - printk(BIOS_SPEW, "pci dev(0x0,0x2,0x0,0x8)"); - printk(BIOS_SPEW, "pci dev(0x0,0x1f,0x0,0x10)"); - printk(BIOS_SPEW, "pci dev(0x0,0x2,0x0,0x0)"); - printk(BIOS_SPEW, "pci dev(0x0,0x2,0x0,0x2)"); - printk(BIOS_SPEW, "pci dev(0x0,0x1f,0x0,0x0)"); - printk(BIOS_SPEW, "pci dev(0x0,0x1f,0x0,0x2)"); - io_i915_write32(0x80000000,0x45400); - intel_dp_wait_reg(0x00045400, 0xc0000000); - printk(BIOS_SPEW, "pci dev(0x0,0x0,0x0,0x14)"); - printk(BIOS_SPEW, "pci dev(0x0,0x2,0x0,0x17)"); - printk(BIOS_SPEW, "pci dev(0x0,0x2,0x0,0x18)"); - io_i915_write32(0x00000000,_CURACNTR); - io_i915_write32((/* DISPPLANE_SEL_PIPE(0=A,1=B) */0x0<<24)|0x00000000,_DSPACNTR); - io_i915_write32(0x00000000,_DSPBCNTR); - io_i915_write32(0x8000298e,CPU_VGACNTRL); - io_i915_write32(0x00000000,_DSPASIZE+0xc); - io_i915_write32(0x00000000,_DSPBSURF); - io_i915_write32( 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_SCRAMBLING_DISABLE_IRONLAKE | DP_SYNC_VS_HIGH |0x00000091,DP_A); - io_i915_write32(0x00200090,_FDI_RXA_MISC); - io_i915_write32(0x0a000000,_FDI_RXA_MISC); - io_i915_write32(0x00000070,0x46408); - io_i915_write32(0x04000000,0x42090); - io_i915_write32(0x00000000,0x9840); - io_i915_write32(0xa4000000,0x42090); - io_i915_write32(0x00001000,SOUTH_DSPCLK_GATE_D); - io_i915_write32(0x00004000,0x42080); - io_i915_write32(0x00ffffff,0x64f80); - io_i915_write32(0x0007000e,0x64f84); - io_i915_write32(0x00d75fff,0x64f88); - io_i915_write32(0x000f000a,0x64f8c); - io_i915_write32(0x00c30fff,0x64f90); - io_i915_write32(0x00060006,0x64f94); - io_i915_write32(0x00aaafff,0x64f98); - io_i915_write32(0x001e0000,0x64f9c); - io_i915_write32(0x00ffffff,0x64fa0); - io_i915_write32(0x000f000a,0x64fa4); - io_i915_write32(0x00d75fff,0x64fa8); - io_i915_write32(0x00160004,0x64fac); - io_i915_write32(0x00c30fff,0x64fb0); - io_i915_write32(0x001e0000,0x64fb4); - io_i915_write32(0x00ffffff,0x64fb8); - io_i915_write32(0x00060006,0x64fbc); - io_i915_write32(0x00d75fff,0x64fc0); - io_i915_write32(0x001e0000,0x64fc4); - io_i915_write32(0x00ffffff,DDI_BUF_TRANS_A); - io_i915_write32(0x0006000e,DDI_BUF_TRANS_A+0x4); - io_i915_write32(0x00d75fff,DDI_BUF_TRANS_A+0x8); - io_i915_write32(0x0005000a,DDI_BUF_TRANS_A+0xc); - io_i915_write32(0x00c30fff,DDI_BUF_TRANS_A+0x10); - io_i915_write32(0x00040006,DDI_BUF_TRANS_A+0x14); - io_i915_write32(0x80aaafff,DDI_BUF_TRANS_A+0x18); - io_i915_write32(0x000b0000,DDI_BUF_TRANS_A+0x1c); - io_i915_write32(0x00ffffff,DDI_BUF_TRANS_A+0x20); - io_i915_write32(0x0005000a,DDI_BUF_TRANS_A+0x24); - io_i915_write32(0x00d75fff,DDI_BUF_TRANS_A+0x28); - io_i915_write32(0x000c0004,DDI_BUF_TRANS_A+0x2c); - io_i915_write32(0x80c30fff,DDI_BUF_TRANS_A+0x30); - io_i915_write32(0x000b0000,DDI_BUF_TRANS_A+0x34); - io_i915_write32(0x00ffffff,DDI_BUF_TRANS_A+0x38); - io_i915_write32(0x00040006,DDI_BUF_TRANS_A+0x3c); - io_i915_write32(0x80d75fff,DDI_BUF_TRANS_A+0x40); - io_i915_write32(0x000b0000,DDI_BUF_TRANS_A+0x44); - io_i915_write32( DIGITAL_PORTA_HOTPLUG_ENABLE |0x00000010,DIGITAL_PORT_HOTPLUG_CNTRL); - io_i915_write32( PORTD_HOTPLUG_ENABLE | PORTB_HOTPLUG_ENABLE |0x10100010,SDEISR+0x30); - io_i915_write32((PCH_PP_UNLOCK&0xabcd0000)| EDP_FORCE_VDD |0xabcd0008,PCH_PP_CONTROL); - mdelay(200); - io_i915_write32(0x0004af06,PCH_PP_DIVISOR); - /* we may need more but let's see. */ -} - void dp_init_dim_regs(struct intel_dp *dp); void dp_init_dim_regs(struct intel_dp *dp) { @@ -351,10 +271,9 @@ void mainboard_train_link(struct intel_dp *intel_dp) } int i915lightup(unsigned int physbase, unsigned int iobase, unsigned int mmio, - unsigned int gfx); - + unsigned int gfx, unsigned int init_fb); int i915lightup(unsigned int pphysbase, unsigned int piobase, - unsigned int pmmio, unsigned int pgfx) + unsigned int pmmio, unsigned int pgfx, unsigned int init_fb) { int must_cycle_power = 0; struct intel_dp adp, *dp = &adp; @@ -377,6 +296,7 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase, void runio(struct intel_dp *dp); void runlinux(struct intel_dp *dp); + dp->gen = 8; // ?? dp->is_haswell = 1; dp->DP = 0x2; @@ -396,7 +316,17 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase, dp->aux_clock_divider = 0xe1; dp->precharge = 3; - gma_fui_init(0); + /* 1. Normal mode: Set the first page to zero and make + all GTT entries point to the same page + 2. Developer/Recovery mode: We do not zero out all + the pages pointed to by GTT in order to avoid wasting time */ + if (init_fb) + setgtt(0, FRAME_BUFFER_PAGES, physbase, 4096); + else { + setgtt(0, FRAME_BUFFER_PAGES, physbase, 0); + memset((void*)graphics, 0, 4096); + } + //intel_prepare_ddi_buffers(0, 0); //ironlake_edp_panel_vdd_on(dp); dp->address = 0x50; @@ -426,9 +356,8 @@ int i915lightup(unsigned int pphysbase, unsigned int piobase, io_i915_write32(0x00000021,0x6f410); runio(dp); - palette(); - setgtt(0, FRAME_BUFFER_PAGES, physbase, 4096); + palette(); pixels = dp->edid.ha * (dp->edid.va-4) * 4; printk(BIOS_SPEW, "ha=%d, va=%d\n",dp->edid.ha, dp->edid.va); |