diff options
Diffstat (limited to 'board/toradex/colibri_vf/dcu.c')
-rw-r--r-- | board/toradex/colibri_vf/dcu.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/board/toradex/colibri_vf/dcu.c b/board/toradex/colibri_vf/dcu.c new file mode 100644 index 0000000000..f1d8027c9d --- /dev/null +++ b/board/toradex/colibri_vf/dcu.c @@ -0,0 +1,38 @@ +/* + * Copyright 2016 Toradex AG + * + * FSL DCU platform driver + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arch/crm_regs.h> +#include <asm/io.h> +#include <common.h> +#include <fsl_dcu_fb.h> +#include "div64.h" + +DECLARE_GLOBAL_DATA_PTR; + +unsigned int dcu_set_pixel_clock(unsigned int pixclock) +{ + struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR; + unsigned long long div; + + clrbits_le32(&ccm->cscmr1, CCM_CSCMR1_DCU0_CLK_SEL); + clrsetbits_le32(&ccm->cscdr3, + CCM_CSCDR3_DCU0_DIV_MASK | CCM_CSCDR3_DCU0_EN, + CCM_CSCDR3_DCU0_DIV(0) | CCM_CSCDR3_DCU0_EN); + div = (unsigned long long)(PLL1_PFD2_FREQ / 1000); + do_div(div, pixclock); + + return div; +} + +int platform_dcu_init(unsigned int xres, unsigned int yres, + const char *port, + struct fb_videomode *dcu_fb_videomode) +{ + fsl_dcu_init(xres, yres, 32); + + return 0; +} |