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https://github.com/AsahiLinux/u-boot
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80b9c3bb80
The Vybrid SoC family has the same display controller unit (DCU) like the LS1021A SoC. This patch adds platform data, pinmux defines and clock control to enable the driver for Toradex Colibri Vybrid module. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
38 lines
842 B
C
38 lines
842 B
C
/*
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* Copyright 2017 Toradex AG
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*
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* FSL DCU platform driver
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/arch/crm_regs.h>
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#include <asm/io.h>
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#include <common.h>
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#include <fsl_dcu_fb.h>
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#include "div64.h"
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DECLARE_GLOBAL_DATA_PTR;
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unsigned int dcu_set_pixel_clock(unsigned int pixclock)
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{
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struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
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unsigned long long div;
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clrbits_le32(&ccm->cscmr1, CCM_CSCMR1_DCU0_CLK_SEL);
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clrsetbits_le32(&ccm->cscdr3,
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CCM_CSCDR3_DCU0_DIV_MASK | CCM_CSCDR3_DCU0_EN,
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CCM_CSCDR3_DCU0_DIV(0) | CCM_CSCDR3_DCU0_EN);
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div = (unsigned long long)(PLL1_PFD2_FREQ / 1000);
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do_div(div, pixclock);
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return div;
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}
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int platform_dcu_init(unsigned int xres, unsigned int yres,
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const char *port,
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struct fb_videomode *dcu_fb_videomode)
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{
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fsl_dcu_init(xres, yres, 32);
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return 0;
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}
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