diff options
Diffstat (limited to 'src/mainboard/intel/wtm2')
| -rw-r--r-- | src/mainboard/intel/wtm2/graphics.c | 2 | ||||
| -rw-r--r-- | src/mainboard/intel/wtm2/i915.c | 110 | ||||
| -rw-r--r-- | src/mainboard/intel/wtm2/i915io.h | 76 | ||||
| -rw-r--r-- | src/mainboard/intel/wtm2/intel_dp.c | 20 |
4 files changed, 31 insertions, 177 deletions
diff --git a/src/mainboard/intel/wtm2/graphics.c b/src/mainboard/intel/wtm2/graphics.c index 79820b9fe9..6d375e6a27 100644 --- a/src/mainboard/intel/wtm2/graphics.c +++ b/src/mainboard/intel/wtm2/graphics.c @@ -20,7 +20,7 @@ * will be all machine generated. Avoid editing. */ #include <console/console.h> -#include "i915io.h" +#include <device/i915.h> void graphics_register_reset(u32 aux_ctl, u32 aux_data, int verbose) { diff --git a/src/mainboard/intel/wtm2/i915.c b/src/mainboard/intel/wtm2/i915.c index 9d0c27d850..df8813888f 100644 --- a/src/mainboard/intel/wtm2/i915.c +++ b/src/mainboard/intel/wtm2/i915.c @@ -42,7 +42,26 @@ #include <cpu/x86/mtrr.h> #include <cpu/x86/msr.h> #include <edid.h> -#include "i915io.h" +#include <device/i915.h> + +/* how many bytes do we need for the framebuffer? + * Well, this gets messy. To get an exact answer, we have + * to ask the panel, but we'd rather zero the memory + * and set up the gtt while the panel powers up. So, + * we take a reasonable guess, secure in the knowledge that the + * MRC has to overestimate the number of bytes used. + * 8 MiB is a very safe guess. There may be a better way later, but + * fact is, the initial framebuffer is only very temporary. And taking + * a little long is ok; this is done much faster than the AUX + * channel is ready for IO. + */ +#define FRAME_BUFFER_BYTES (8*MiB) +/* how many 4096-byte pages do we need for the framebuffer? + * There are hard ways to get this, and easy ways: + * there are FRAME_BUFFER_BYTES/4096 pages, since pages are 4096 + * on this chip (and in fact every Intel graphics chip we've seen). + */ +#define FRAME_BUFFER_PAGES (FRAME_BUFFER_BYTES/(4096)) static int verbose = 0; @@ -139,95 +158,6 @@ static unsigned long globalmicroseconds(void) static int i915_init_done = 0; -/* fill the palette. This runs when the P opcode is hit. */ -static void palette(void) -{ - int i; - unsigned long color = 0; - - for(i = 0; i < 256; i++, color += 0x010101){ - io_i915_WRITE32(color, _LGC_PALETTE_A + (i<<2)); - } -} - -static unsigned long times[4096]; - -static int run(int index) -{ - int i, prev = 0; - struct iodef *id, *lastidread = 0; - unsigned long u, t; - if (index >= niodefs) - return index; - /* state machine! */ - for(i = index, id = &iodefs[i]; id->op; i++, id++){ - switch(id->op){ - case M: - if (verbose & vmsg) printk(BIOS_SPEW, "%ld: %s\n", - globalmicroseconds(), id->msg); - break; - case P: - palette(); - break; - case R: - u = READ32(id->addr); - if (verbose & vio) - printk(BIOS_SPEW, "\texpect %08lx\n", id->data); - /* we're looking for something. */ - if (lastidread->addr == id->addr){ - /* they're going to be polling. - * just do it 1000 times - */ - for(t = 0; t < 1000 && id->data != u; t++){ - u = READ32(id->addr); - } - if (verbose & vspin) printk(BIOS_SPEW, - "%s: # loops %ld got %08lx want %08lx\n", - regname(id->addr), - t, u, id->data); - } - lastidread = id; - break; - case W: - WRITE32(id->data, id->addr); - if (id->addr == PCH_PP_CONTROL){ - if (verbose & vio) - printk(BIOS_SPEW, "PCH_PP_CONTROL\n"); - switch(id->data & 0xf){ - case 8: break; - case 7: break; - default: udelay(100000); - if (verbose & vio) - printk(BIOS_SPEW, "U %d\n", 100000); - } - } - break; - case V: - if (id->count < 8){ - prev = verbose; - verbose = id->count; - } else { - verbose = prev; - } - printk(BIOS_SPEW, "Change verbosity to %d\n", verbose); - break; - case I: - printk(BIOS_SPEW, "run: return %d\n", i+1); - return i+1; - break; - default: - printk(BIOS_SPEW, "BAD TABLE, opcode %d @ %d\n", id->op, i); - return -1; - } - if (id->udelay) - udelay(id->udelay); - if (i < ARRAY_SIZE(times)) - times[i] = globalmicroseconds(); - } - printk(BIOS_SPEW, "run: return %d\n", i); - return i+1; -} - int i915lightup(unsigned int physbase, unsigned int iobase, unsigned int mmio, unsigned int gfx); diff --git a/src/mainboard/intel/wtm2/i915io.h b/src/mainboard/intel/wtm2/i915io.h deleted file mode 100644 index 52842adb45..0000000000 --- a/src/mainboard/intel/wtm2/i915io.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2012 Google Inc. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <northbridge/intel/haswell/i915_reg.h> -#include <northbridge/intel/haswell/drm_dp_helper.h> - -/* things that are, strangely, not defined anywhere? */ -#define PCH_PP_UNLOCK 0xabcd0000 -#define WMx_LP_SR_EN (1<<31) -#define PRB0_TAIL 0x02030 -#define PRB0_HEAD 0x02034 -#define PRB0_START 0x02038 -#define PRB0_CTL 0x0203c - - -/* mainboard-specific defines */ -/* how many bytes do we need for the framebuffer? - * Well, this gets messy. To get an exact answer, we have - * to ask the panel, but we'd rather zero the memory - * and set up the gtt while the panel powers up. So, - * we take a reasonable guess, secure in the knowledge that the - * MRC has to overestimate the number of bytes used. - * 8 MiB is a very safe guess. There may be a better way later, but - * fact is, the initial framebuffer is only very temporary. And taking - * a little long is ok; this is done much faster than the AUX - * channel is ready for IO. - */ -#define FRAME_BUFFER_BYTES (8*MiB) -/* how many 4096-byte pages do we need for the framebuffer? - * There are hard ways to get this, and easy ways: - * there are FRAME_BUFFER_BYTES/4096 pages, since pages are 4096 - * on this chip. - */ -#define FRAME_BUFFER_PAGES (FRAME_BUFFER_BYTES/(4096)) - - -/* debug enums. These are for printks that, due to their place in the - * middle of graphics device IO, might change timing. Use with care - * or not at all. - */ -enum { - vio = 2, /* dump every IO */ - vspin = 4, /* print # of times we spun on a register value */ -}; - -/* i915.c */ -unsigned long io_i915_READ32(unsigned long addr); -void io_i915_WRITE32(unsigned long val, unsigned long addr); -int vbe_mode_info_valid(void); -void fill_lb_framebuffer(struct lb_framebuffer *framebuffer); - -/* intel_dp.c */ -u32 pack_aux(u32 *src, int src_bytes); -void unpack_aux(u32 src, u8 *dst, int dst_bytes); -int intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, - u8 *recv, int recv_size); - -/* i915io.c */ -void graphics_register_reset(u32 aux_ctl, u32 aux_data, int verbose); diff --git a/src/mainboard/intel/wtm2/intel_dp.c b/src/mainboard/intel/wtm2/intel_dp.c index 8fac6f8910..e7222a3f2b 100644 --- a/src/mainboard/intel/wtm2/intel_dp.c +++ b/src/mainboard/intel/wtm2/intel_dp.c @@ -30,7 +30,7 @@ #include <console/console.h> #include <stdint.h> #include <delay.h> -#include "i915io.h" +#include <device/i915.h> u32 pack_aux(u32 *src32, int src_bytes) @@ -79,7 +79,7 @@ intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, /* Try to wait for any previous AUX channel activity */ for (try = 0; try < 3; try++) { - status = io_i915_READ32(ch_ctl); + status = io_i915_read32(ch_ctl); if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) break; udelay(1000); @@ -87,8 +87,9 @@ intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, if (try == 3) { printk(BIOS_SPEW, "[000000.0] [drm:%s], ", __func__); - printk(BIOS_SPEW, "dp_aux_ch not started status 0x%08lx\n", - io_i915_READ32(ch_ctl)); + status = io_i915_read32(ch_ctl); + printk(BIOS_SPEW, "dp_aux_ch not started status 0x%08x\n", + status); return -1; } @@ -96,10 +97,10 @@ intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, for (try = 0; try < 5; try++) { /* Load the send data into the aux channel data registers */ for (i = 0; i < send_bytes; i += 4) - io_i915_WRITE32(send[i], ch_data + i); + io_i915_write32(send[i], ch_data + i); /* Send the command and wait for it to complete */ - io_i915_WRITE32( + io_i915_write32( DP_AUX_CH_CTL_SEND_BUSY | DP_AUX_CH_CTL_TIME_OUT_400us | (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | @@ -109,14 +110,14 @@ intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, DP_AUX_CH_CTL_TIME_OUT_ERROR | DP_AUX_CH_CTL_RECEIVE_ERROR, ch_ctl); for (;;) { - status = io_i915_READ32(ch_ctl); + status = io_i915_read32(ch_ctl); if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) break; udelay(100); } /* Clear done status and any errors */ - io_i915_WRITE32( + io_i915_write32( status | DP_AUX_CH_CTL_DONE | DP_AUX_CH_CTL_TIME_OUT_ERROR | @@ -159,9 +160,8 @@ intel_dp_aux_ch(u32 ch_ctl, u32 ch_data, u32 *send, int send_bytes, recv_bytes = recv_size; for (i = 0; i < recv_bytes; i += 4) - unpack_aux(io_i915_READ32(ch_data + i), + unpack_aux(io_i915_read32(ch_data + i), recv + i, recv_bytes - i); return recv_bytes; } - |