mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 06:42:56 +00:00
4cd3f7cb08
Fix build warning: Configuring for jadecpu board... mb86r0xgdc.c: In function 'dsp_init': mb86r0xgdc.c:60: warning: unused variable 'i' Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Anatolij Gustschin <agust@denx.de>
184 lines
4.3 KiB
C
184 lines
4.3 KiB
C
/*
|
|
* (C) Copyright 2010
|
|
* Matthias Weisser <weisserm@arcor.de>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* mb86r0xgdc.c - Graphic interface for Fujitsu MB86R0x integrated graphic
|
|
* controller.
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#include <malloc.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <video_fb.h>
|
|
#include "videomodes.h"
|
|
|
|
/*
|
|
* 4MB (at the end of system RAM)
|
|
*/
|
|
#define VIDEO_MEM_SIZE 0x400000
|
|
|
|
#define FB_SYNC_CLK_INV (1<<16) /* pixel clock inverted */
|
|
|
|
/*
|
|
* Graphic Device
|
|
*/
|
|
static GraphicDevice mb86r0x;
|
|
|
|
static void dsp_init(struct mb86r0x_gdc_dsp *dsp, char *modestr,
|
|
u32 *videomem)
|
|
{
|
|
struct ctfb_res_modes var_mode;
|
|
u32 dcm1, dcm2, dcm3;
|
|
u16 htp, hdp, hdb, hsp, vtr, vsp, vdp;
|
|
u8 hsw, vsw;
|
|
u32 l2m, l2em, l2oa0, l2da0, l2oa1, l2da1;
|
|
u16 l2dx, l2dy, l2wx, l2wy, l2ww, l2wh;
|
|
unsigned long div;
|
|
int bpp;
|
|
|
|
bpp = video_get_params(&var_mode, modestr);
|
|
|
|
if (bpp == 0) {
|
|
var_mode.xres = 640;
|
|
var_mode.yres = 480;
|
|
var_mode.pixclock = 39721; /* 25MHz */
|
|
var_mode.left_margin = 48;
|
|
var_mode.right_margin = 16;
|
|
var_mode.upper_margin = 33;
|
|
var_mode.lower_margin = 10;
|
|
var_mode.hsync_len = 96;
|
|
var_mode.vsync_len = 2;
|
|
var_mode.sync = 0;
|
|
var_mode.vmode = 0;
|
|
bpp = 15;
|
|
}
|
|
|
|
/* Fill memory with white */
|
|
memset(videomem, 0xFF, var_mode.xres * var_mode.yres * 2);
|
|
|
|
mb86r0x.winSizeX = var_mode.xres;
|
|
mb86r0x.winSizeY = var_mode.yres;
|
|
|
|
/* LCD base clock is ~ 660MHZ. We do calculations in kHz */
|
|
div = 660000 / (1000000000L / var_mode.pixclock);
|
|
if (div > 64)
|
|
div = 64;
|
|
if (0 == div)
|
|
div = 1;
|
|
|
|
dcm1 = (div - 1) << 8;
|
|
dcm2 = 0x00000000;
|
|
if (var_mode.sync & FB_SYNC_CLK_INV)
|
|
dcm3 = 0x00000100;
|
|
else
|
|
dcm3 = 0x00000000;
|
|
|
|
htp = var_mode.left_margin + var_mode.xres +
|
|
var_mode.hsync_len + var_mode.right_margin;
|
|
hdp = var_mode.xres;
|
|
hdb = var_mode.xres;
|
|
hsp = var_mode.xres + var_mode.right_margin;
|
|
hsw = var_mode.hsync_len;
|
|
|
|
vsw = var_mode.vsync_len;
|
|
vtr = var_mode.upper_margin + var_mode.yres +
|
|
var_mode.vsync_len + var_mode.lower_margin;
|
|
vsp = var_mode.yres + var_mode.lower_margin;
|
|
vdp = var_mode.yres;
|
|
|
|
l2m = ((var_mode.yres - 1) << (0)) |
|
|
(((var_mode.xres * 2) / 64) << (16)) |
|
|
((1) << (31));
|
|
|
|
l2em = (1 << 0) | (1 << 1);
|
|
|
|
l2oa0 = mb86r0x.frameAdrs;
|
|
l2da0 = mb86r0x.frameAdrs;
|
|
l2oa1 = mb86r0x.frameAdrs;
|
|
l2da1 = mb86r0x.frameAdrs;
|
|
l2dx = 0;
|
|
l2dy = 0;
|
|
l2wx = 0;
|
|
l2wy = 0;
|
|
l2ww = var_mode.xres;
|
|
l2wh = var_mode.yres - 1;
|
|
|
|
writel(dcm1, &dsp->dcm1);
|
|
writel(dcm2, &dsp->dcm2);
|
|
writel(dcm3, &dsp->dcm3);
|
|
|
|
writew(htp, &dsp->htp);
|
|
writew(hdp, &dsp->hdp);
|
|
writew(hdb, &dsp->hdb);
|
|
writew(hsp, &dsp->hsp);
|
|
writeb(hsw, &dsp->hsw);
|
|
|
|
writeb(vsw, &dsp->vsw);
|
|
writew(vtr, &dsp->vtr);
|
|
writew(vsp, &dsp->vsp);
|
|
writew(vdp, &dsp->vdp);
|
|
|
|
writel(l2m, &dsp->l2m);
|
|
writel(l2em, &dsp->l2em);
|
|
writel(l2oa0, &dsp->l2oa0);
|
|
writel(l2da0, &dsp->l2da0);
|
|
writel(l2oa1, &dsp->l2oa1);
|
|
writel(l2da1, &dsp->l2da1);
|
|
writew(l2dx, &dsp->l2dx);
|
|
writew(l2dy, &dsp->l2dy);
|
|
writew(l2wx, &dsp->l2wx);
|
|
writew(l2wy, &dsp->l2wy);
|
|
writew(l2ww, &dsp->l2ww);
|
|
writew(l2wh, &dsp->l2wh);
|
|
|
|
writel(dcm1 | (1 << 18) | (1 << 31), &dsp->dcm1);
|
|
}
|
|
|
|
void *video_hw_init(void)
|
|
{
|
|
struct mb86r0x_gdc *gdc = (struct mb86r0x_gdc *) MB86R0x_GDC_BASE;
|
|
GraphicDevice *pGD = &mb86r0x;
|
|
char *s;
|
|
u32 *vid;
|
|
|
|
memset(pGD, 0, sizeof(GraphicDevice));
|
|
|
|
pGD->gdfIndex = GDF_15BIT_555RGB;
|
|
pGD->gdfBytesPP = 2;
|
|
pGD->memSize = VIDEO_MEM_SIZE;
|
|
pGD->frameAdrs = PHYS_SDRAM + PHYS_SDRAM_SIZE - VIDEO_MEM_SIZE;
|
|
|
|
vid = (u32 *)pGD->frameAdrs;
|
|
|
|
s = getenv("videomode");
|
|
if (s != NULL)
|
|
dsp_init(&gdc->dsp0, s, vid);
|
|
|
|
s = getenv("videomode1");
|
|
if (s != NULL)
|
|
dsp_init(&gdc->dsp1, s, vid);
|
|
|
|
return pGD;
|
|
}
|