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- /*
- * 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);
- }
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