From: Jason Jin Jason.Jin@freescale.com
T1042 has internal display interface unit (DIU) for driving video. T1042RDB supports video mode via -LCD using TI enconder -HDMI type interface via HDMI encoder
Chrontel, CH7301C encoder which is I2C programmable is used as HDMI connector on T1042RDB. This patch add support to -enable Video interface for T1042RDB -route qixis multiplexing to enable DIU-HDMI interface on board -program DIU pixel clock gerenartor for T1042 -program HDMI encoder via I2C on board
This patch refer to the upstream diu patch (337b0c52b3296f371d04aef71a833e09110e0e6b) for T1040qds.
Signed-off-by: Jason Jin Jason.Jin@freescale.com Signed-off-by: Wang Dongsheng dongsheng.wang@freescale.com --- V2: - Restore CONFIG_SYS_CONSOLE_IS_IN_ENV macors. - Restore CONFIG_SYS_MALLOC_LEN macors, this macors not effect FB. - Add a blank line between declarations and code.
diff --git a/board/freescale/t104xrdb/Makefile b/board/freescale/t104xrdb/Makefile index af38d9f..f15a633 100644 --- a/board/freescale/t104xrdb/Makefile +++ b/board/freescale/t104xrdb/Makefile @@ -12,3 +12,4 @@ obj-$(CONFIG_PCI) += pci.o obj-y += law.o obj-y += tlb.o obj-y += cpld.o +obj-$(CONFIG_FSL_DIU_FB) += diu.o diff --git a/board/freescale/t104xrdb/diu.c b/board/freescale/t104xrdb/diu.c new file mode 100644 index 0000000..3285bef --- /dev/null +++ b/board/freescale/t104xrdb/diu.c @@ -0,0 +1,84 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * Author: Priyanka Jain Priyanka.Jain@freescale.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/io.h> +#include <common.h> +#include <command.h> +#include <fsl_diu_fb.h> +#include <linux/ctype.h> +#include <video_fb.h> + +#include "../common/diu_ch7301.h" + +#include "cpld.h" +#include "t104xrdb.h" + +/* + * DIU Area Descriptor + * + * Note that we need to byte-swap the value before it's written to the AD + * register. So even though the registers don't look like they're in the same + * bit positions as they are on the MPC8610, the same value is written to the + * AD register on the MPC8610 and on the P1022. + */ +#define AD_BYTE_F 0x10000000 +#define AD_ALPHA_C_SHIFT 25 +#define AD_BLUE_C_SHIFT 23 +#define AD_GREEN_C_SHIFT 21 +#define AD_RED_C_SHIFT 19 +#define AD_PIXEL_S_SHIFT 16 +#define AD_COMP_3_SHIFT 12 +#define AD_COMP_2_SHIFT 8 +#define AD_COMP_1_SHIFT 4 +#define AD_COMP_0_SHIFT 0 + +void diu_set_pixel_clock(unsigned int pixclock) +{ + unsigned long speed_ccb, temp; + u32 pixval; + int ret; + + speed_ccb = get_bus_freq(0); + temp = 1000000000 / pixclock; + temp *= 1000; + pixval = speed_ccb / temp; + + /* Program HDMI encoder */ + ret = diu_set_dvi_encoder(temp); + if (ret) { + puts("Failed to set DVI encoder\n"); + return; + } + + /* Program pixel clock */ + out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR, + ((pixval << PXCK_BITS_START) & PXCK_MASK)); + + /* enable clock*/ + out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR, PXCKEN_MASK | + ((pixval << PXCK_BITS_START) & PXCK_MASK)); +} + +int platform_diu_init(unsigned int xres, unsigned int yres, const char *port) +{ + u32 pixel_format; + u8 sw; + + /*Configure Display ouput port as HDMI*/ + sw = CPLD_READ(sfp_ctl_status); + CPLD_WRITE(sfp_ctl_status , sw & ~(CPLD_DIU_SEL_DFP)); + + pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) | + (0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) | + (2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) | + (8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) | + (8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT)); + + printf("DIU: Switching to monitor DVI @ %ux%u\n", xres, yres); + + return fsl_diu_init(xres, yres, pixel_format, 0); +} diff --git a/include/configs/T1042RDB_PI.h b/include/configs/T1042RDB_PI.h index 8a8a2ff..6d3822d 100644 --- a/include/configs/T1042RDB_PI.h +++ b/include/configs/T1042RDB_PI.h @@ -203,6 +203,7 @@ #define CPLD_LBMAP_DFLTBANK 0x40 /* BANK OR | BANK0 */ #define CPLD_LBMAP_RESET 0xFF #define CPLD_LBMAP_SHIFT 0x03 +#define CPLD_DIU_SEL_DFP 0x80
#define CONFIG_SYS_CPLD_BASE 0xffdf0000 #define CONFIG_SYS_CPLD_BASE_PHYS (0xf00000000ull | CONFIG_SYS_CPLD_BASE) @@ -358,6 +359,22 @@ #define CONFIG_SYS_HUSH_PARSER #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+/* Video */ +#define CONFIG_FSL_DIU_FB + +#ifdef CONFIG_FSL_DIU_FB +#define CONFIG_FSL_DIU_CH7301 +#define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x180000) +#define CONFIG_VIDEO +#define CONFIG_CMD_BMP +#define CONFIG_CFB_CONSOLE +#define CONFIG_CFB_CONSOLE_ANSI +#define CONFIG_VIDEO_SW_CURSOR +#define CONFIG_VGA_AS_SINGLE_DEVICE +#define CONFIG_VIDEO_LOGO +#define CONFIG_VIDEO_BMP_LOGO +#endif + /* pass open firmware flat tree */ #define CONFIG_OF_LIBFDT #define CONFIG_OF_BOARD_SETUP @@ -380,6 +397,10 @@ /* I2C bus multiplexer */ #define I2C_MUX_PCA_ADDR 0x70
+/* LDI/DVI Encoder for display */ +#define CONFIG_SYS_I2C_LDI_ADDR 0x38 +#define CONFIG_SYS_I2C_DVI_ADDR 0x75 + /* * RTC configuration */ @@ -646,6 +667,7 @@ "usb1:dr_mode=host,phy_type=" __stringify(__USB_PHY_TYPE) ";"\ "usb2:dr_mode=host,phy_type=" __stringify(__USB_PHY_TYPE) "\0"\ "netdev=eth0\0" \ + "video-mode=fslfb:1024x768-32@60,monitor=dvi\0" \ "uboot=" __stringify(CONFIG_UBOOTPATH) "\0" \ "ubootaddr=" __stringify(CONFIG_SYS_TEXT_BASE) "\0" \ "tftpflash=tftpboot $loadaddr $uboot && " \