mirror of
https://xff.cz/git/u-boot/
synced 2025-10-31 10:26:10 +01:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
|
|
* Copyright 2008 Freescale Semiconductor, Inc.
|
|
* York Sun <yorksun@freescale.com>
|
|
*
|
|
* FSL DIU Framebuffer driver
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <asm/io.h>
|
|
|
|
#include <fsl_diu_fb.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void diu_set_pixel_clock(unsigned int pixclock)
|
|
{
|
|
volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
|
|
volatile clk512x_t *clk = &immap->clk;
|
|
volatile unsigned int *clkdvdr = &clk->scfr[0];
|
|
unsigned long speed_ccb, temp, pixval;
|
|
|
|
speed_ccb = get_bus_freq(0) * 4;
|
|
temp = 1000000000/pixclock;
|
|
temp *= 1000;
|
|
pixval = speed_ccb / temp;
|
|
debug("DIU pixval = %lu\n", pixval);
|
|
|
|
/* Modify PXCLK in GUTS CLKDVDR */
|
|
debug("DIU: Current value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
|
|
temp = in_be32(clkdvdr) & 0xFFFFFF00;
|
|
out_be32(clkdvdr, temp | (pixval & 0xFF));
|
|
debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
|
|
}
|
|
|
|
int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
|
|
{
|
|
unsigned int pixel_format = 0x88883316;
|
|
|
|
debug("mpc5121_diu_init\n");
|
|
return fsl_diu_init(xres, yres, pixel_format, 0);
|
|
}
|