mx53: Add Board support for GE PPD

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>

1 files changed, 135 insertions, 0 deletions

diff --git a/board/ge/mx53ppd/mx53ppd_video.c b/board/ge/mx53ppd/mx53ppd_video.c
new file mode 100644
index 0000000..45974bc
--- /dev/null
+++ b/board/ge/mx53ppd/mx53ppd_video.c
@@ -0,0 +1,135 @@
+/*
+ * 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;
+}