mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
6b0071c110
Create board support for GE PPD, based on mx53loco. Use mx53ppd_defconfig make target to configure for this board. Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com> Signed-off-by: Ian Ray <ian.ray@ge.com> Signed-off-by: Nandor Han <nandor.han@ge.com> Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/*
|
|
* Copyright 2017 General Electric Company
|
|
*
|
|
* Based on board/freescale/mx53loco/mx53loco_video.c:
|
|
*
|
|
* Copyright (C) 2012 Freescale Semiconductor, Inc.
|
|
* Fabio Estevam <fabio.estevam@freescale.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/list.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/arch/iomux-mx53.h>
|
|
#include <linux/fb.h>
|
|
#include <ipu_pixfmt.h>
|
|
#include <asm/arch/crm_regs.h>
|
|
#include <asm/arch/imx-regs.h>
|
|
#include <asm/io.h>
|
|
#include <pwm.h>
|
|
#include "ppd_gpio.h"
|
|
|
|
#define MX53PPD_LCD_POWER IMX_GPIO_NR(3, 24)
|
|
|
|
static struct fb_videomode const nv_spwg = {
|
|
.name = "NV-SPWGRGB888",
|
|
.refresh = 60,
|
|
.xres = 800,
|
|
.yres = 480,
|
|
.pixclock = 15384,
|
|
.left_margin = 16,
|
|
.right_margin = 210,
|
|
.upper_margin = 10,
|
|
.lower_margin = 22,
|
|
.hsync_len = 30,
|
|
.vsync_len = 13,
|
|
.sync = FB_SYNC_EXT,
|
|
.vmode = FB_VMODE_NONINTERLACED
|
|
};
|
|
|
|
void setup_iomux_lcd(void)
|
|
{
|
|
static const iomux_v3_cfg_t lcd_pads[] = {
|
|
MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
|
|
MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
|
|
MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
|
|
MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
|
|
MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
|
|
MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
|
|
MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
|
|
MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
|
|
MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
|
|
MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
|
|
MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
|
|
MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
|
|
MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
|
|
MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
|
|
MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
|
|
MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
|
|
MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
|
|
MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
|
|
MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
|
|
MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
|
|
MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
|
|
MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
|
|
MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
|
|
MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
|
|
MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
|
|
MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
|
|
MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
|
|
MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
|
|
};
|
|
|
|
imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
|
|
}
|
|
|
|
static void lcd_enable(void)
|
|
{
|
|
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
|
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
|
|
|
|
/* Set LDB_DI0 as clock source for IPU_DI0 */
|
|
clrsetbits_le32(&mxc_ccm->cscmr2,
|
|
MXC_CCM_CSCMR2_DI0_CLK_SEL_MASK,
|
|
MXC_CCM_CSCMR2_DI0_CLK_SEL(
|
|
MXC_CCM_CSCMR2_DI0_CLK_SEL_LDB_DI0_CLK));
|
|
|
|
/* Turn on IPU LDB DI0 clocks */
|
|
setbits_le32(&mxc_ccm->CCGR6, MXC_CCM_CCGR6_LDB_DI0(3));
|
|
|
|
/* Turn on IPU DI0 clocks */
|
|
setbits_le32(&mxc_ccm->CCGR6, MXC_CCM_CCGR6_IPU_DI0(3));
|
|
|
|
/* Configure LDB */
|
|
writel(IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG |
|
|
IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT |
|
|
IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0,
|
|
&iomux->gpr[2]);
|
|
|
|
/* Enable backlights */
|
|
pwm_init(1, 0, 0);
|
|
|
|
/* duty cycle 5000000ns, period: 5000000ns */
|
|
pwm_config(1, 5000000, 5000000);
|
|
|
|
/* Backlight Power */
|
|
gpio_direction_output(BACKLIGHT_ENABLE, 1);
|
|
|
|
pwm_enable(1);
|
|
}
|
|
|
|
static int do_lcd_enable(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
lcd_enable();
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
ppd_lcd_enable, 1, 1, do_lcd_enable,
|
|
"enable PPD LCD",
|
|
"no parameters"
|
|
);
|
|
|
|
int board_video_skip(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = ipuv3_fb_init(&nv_spwg, 0, IPU_PIX_FMT_RGB24);
|
|
if (ret)
|
|
printf("Display cannot be configured: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|