/*
- * Copyright 2007 Freescale Semiconductor, Inc.
- * York Sun <yorksun@freescale.com>
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ * Authors: York Sun <yorksun@freescale.com>
+ * Timur Tabi <timur@freescale.com>
*
* FSL DIU Framebuffer driver
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <asm/io.h>
#include <fsl_diu_fb.h>
+#include "../common/pixis.h"
+
+#define PX_BRDCFG0_DLINK 0x10
+#define PX_BRDCFG0_DVISEL 0x08
void diu_set_pixel_clock(unsigned int pixclock)
{
debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
}
-int platform_diu_init(unsigned int *xres, unsigned int *yres)
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
{
- char *monitor_port;
- int gamma_fix;
- unsigned int pixel_format;
- unsigned char tmp_val;
- unsigned char pixis_arch;
- u8 *pixis_base = (u8 *)PIXIS_BASE;
-
- tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
- pixis_arch = in_8(pixis_base + PIXIS_VER);
+ const char *name;
+ int gamma_fix = 0;
+ u32 pixel_format = 0x88883316;
+ u8 temp;
- monitor_port = getenv("monitor");
- if (!strncmp(monitor_port, "0", 1)) { /* 0 - DVI */
- *xres = 1280;
- *yres = 1024;
- if (pixis_arch == 0x01)
- pixel_format = 0x88882317;
- else
- pixel_format = 0x88883316;
- gamma_fix = 0;
- out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08);
-
- } else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */
- *xres = 1024;
- *yres = 768;
- pixel_format = 0x88883316;
- gamma_fix = 0;
- out_8(pixis_base + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10);
+ temp = in_8(&pixis->brdcfg0);
- } else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */
- *xres = 1280;
- *yres = 1024;
- pixel_format = 0x88883316;
+ if (strncmp(port, "dlvds", 5) == 0) {
+ /* Dual link LVDS */
gamma_fix = 1;
- out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xe7);
-
- } else { /* DVI */
- *xres = 1280;
- *yres = 1024;
- pixel_format = 0x88882317;
- gamma_fix = 0;
- out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08);
+ temp &= ~(PX_BRDCFG0_DLINK | PX_BRDCFG0_DVISEL);
+ name = "Dual-Link LVDS";
+ } else if (strncmp(port, "lvds", 4) == 0) {
+ /* Single link LVDS */
+ temp = (temp & ~PX_BRDCFG0_DVISEL) | PX_BRDCFG0_DLINK;
+ name = "Single-Link LVDS";
+ } else {
+ /* DVI */
+ if (in_8(&pixis->ver) == 1) /* Board version */
+ pixel_format = 0x88882317;
+ temp |= PX_BRDCFG0_DVISEL;
+ name = "DVI";
}
- return fsl_diu_init(*xres, pixel_format, gamma_fix);
+ printf("DIU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
+ out_8(&pixis->brdcfg0, temp);
+
+ return fsl_diu_init(xres, yres, pixel_format, gamma_fix);
}