diff options
author | Stefan Agner <stefan.agner@toradex.com> | 2016-11-30 12:11:15 +0530 |
---|---|---|
committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-01-11 21:27:11 +0100 |
commit | 4ee6eeea41c1ca6ec4255d5330fe7c7d1775eea6 (patch) | |
tree | 37ccf5460a0ad263e6f293c7a31491d346c62aec /board/toradex/colibri_vf/dcu.c | |
parent | a589542ca5e6836d326d93d884a7d57a2119a6e1 (diff) |
video: dcu: Add DCU support for Vybrid SoC
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 Vybrid based boards too.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
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; +} |