[U-Boot] [PATCH][v2] powerpc/t1040qds: Add Video - HDMI support
T1040 has internal display interface unit (DIU) for driving video. T1040QDS 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 T1040QDS. This patch add support to -enable Video interface for T1040QDS -route qixis multiplexing to enable DIU-HDMI interface on board -program DIU pixel clock gerenartor for T1040 -program HDMI encoder via I2C on board
Signed-off-by: Priyanka Jain Priyanka.Jain@freescale.com --- Changes for v2: Fix compilation warnings
board/freescale/t1040qds/Makefile | 1 + board/freescale/t1040qds/diu.c | 215 +++++++++++++++++++++++++++++ board/freescale/t1040qds/t1040qds.h | 1 + board/freescale/t1040qds/t1040qds_qixis.h | 12 ++ include/configs/T1040QDS.h | 27 ++++- 5 files changed, 255 insertions(+), 1 deletions(-) create mode 100644 board/freescale/t1040qds/diu.c
diff --git a/board/freescale/t1040qds/Makefile b/board/freescale/t1040qds/Makefile index c7470d7..19ed21b 100644 --- a/board/freescale/t1040qds/Makefile +++ b/board/freescale/t1040qds/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_PCI) += pci.o obj-y += law.o obj-y += tlb.o obj-y += eth.o +obj-y += diu.o diff --git a/board/freescale/t1040qds/diu.c b/board/freescale/t1040qds/diu.c new file mode 100644 index 0000000..ffd074b --- /dev/null +++ b/board/freescale/t1040qds/diu.c @@ -0,0 +1,215 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * Author: Priyanka Jain Priyanka.Jain@freescale.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <command.h> +#include <linux/ctype.h> +#include <asm/io.h> +#include <stdio_dev.h> +#include <video_fb.h> +#include <fsl_diu_fb.h> +#include "../common/qixis.h" +#include "t1040qds.h" +#include "t1040qds_qixis.h" +#include <i2c.h> + + +#define I2C_DVI_INPUT_DATA_FORMAT_REG 0x1F +#define I2C_DVI_PLL_CHARGE_CNTL_REG 0x33 +#define I2C_DVI_PLL_DIVIDER_REG 0x34 +#define I2C_DVI_PLL_SUPPLY_CNTL_REG 0x35 +#define I2C_DVI_PLL_FILTER_REG 0x36 +#define I2C_DVI_TEST_PATTERN_REG 0x48 +#define I2C_DVI_POWER_MGMT_REG 0x49 +#define I2C_DVI_LOCK_STATE_REG 0x4D +#define I2C_DVI_SYNC_POLARITY_REG 0x56 + +/* + * Set VSYNC/HSYNC to active high. This is polarity of sync signals + * from DIU->DVI. The DIU default is active igh, so DVI is set to + * active high. + */ +#define I2C_DVI_INPUT_DATA_FORMAT_VAL 0x98 + +#define I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL 0x06 +#define I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL 0x26 +#define I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL 0xA0 +#define I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL 0x08 +#define I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL 0x16 +#define I2C_DVI_PLL_FILTER_LOW_SPEED_VAL 0x60 + +/* Clear test pattern */ +#define I2C_DVI_TEST_PATTERN_VAL 0x18 +/* Exit Power-down mode */ +#define I2C_DVI_POWER_MGMT_VAL 0xC0 + +/* Monitor polarity is handled via DVI Sync Polarity Register */ +#define I2C_DVI_SYNC_POLARITY_VAL 0x00 + +/* + * 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 + +/* Programming of HDMI Chrontel CH7301 connector */ +int diu_set_dvi_encoder(unsigned int pixclock) +{ + int ret; + u8 temp; + select_i2c_ch_pca9547(I2C_MUX_CH_DIU); + + temp = I2C_DVI_TEST_PATTERN_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_TEST_PATTERN_REG, 1, + &temp, 1); + if (ret) { + puts("I2C: failed to select proper dvi test pattern\n"); + return ret; + } + temp = I2C_DVI_INPUT_DATA_FORMAT_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_INPUT_DATA_FORMAT_REG, + 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi input data format\n"); + return ret; + } + + /* Set Sync polarity register */ + temp = I2C_DVI_SYNC_POLARITY_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_SYNC_POLARITY_REG, 1, + &temp, 1); + if (ret) { + puts("I2C: failed to select dvi syc polarity\n"); + return ret; + } + + /* Set PLL registers based on pixel clock rate*/ + if (pixclock > 65000000) { + temp = I2C_DVI_PLL_CHARGE_CNTL_HIGH_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll charge_cntl\n"); + return ret; + } + temp = I2C_DVI_PLL_DIVIDER_HIGH_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll divider\n"); + return ret; + } + temp = I2C_DVI_PLL_FILTER_HIGH_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_FILTER_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll filter\n"); + return ret; + } + } else { + temp = I2C_DVI_PLL_CHARGE_CNTL_LOW_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_CHARGE_CNTL_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll charge_cntl\n"); + return ret; + } + temp = I2C_DVI_PLL_DIVIDER_LOW_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_DIVIDER_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll divider\n"); + return ret; + } + temp = I2C_DVI_PLL_FILTER_LOW_SPEED_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, + I2C_DVI_PLL_FILTER_REG, 1, &temp, 1); + if (ret) { + puts("I2C: failed to select dvi pll filter\n"); + return ret; + } + } + + temp = I2C_DVI_POWER_MGMT_VAL; + ret = i2c_write(CONFIG_SYS_I2C_DVI_ADDR, I2C_DVI_POWER_MGMT_REG, 1, + &temp, 1); + if (ret) { + puts("I2C: failed to select dvi power mgmt\n"); + return ret; + } + + udelay(500); + + select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT); + return 0; +} + +void diu_set_pixel_clock(unsigned int pixclock) +{ + unsigned long speed_ccb, temp; + u32 pixval; + int ret = 0; + 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; + + /*Route I2C4 to DIU system as HSYNC/VSYNC*/ + sw = QIXIS_READ(brdcfg[5]); + QIXIS_WRITE(brdcfg[5], + ((sw & ~(BRDCFG5_IMX_MASK)) | (BRDCFG5_IMX_DIU))); + + /*Configure Display ouput port as HDMI*/ + sw = QIXIS_READ(brdcfg[15]); + QIXIS_WRITE(brdcfg[15], + ((sw & ~(BRDCFG15_LCDPD_MASK | BRDCFG15_DIUSEL_MASK)) + | (BRDCFG15_LCDPD_ENABLED | BRDCFG15_DIUSEL_HDMI))); + + 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 @ %ux%u\n", xres, yres); + + + return fsl_diu_init(xres, yres, pixel_format, 0); +} diff --git a/board/freescale/t1040qds/t1040qds.h b/board/freescale/t1040qds/t1040qds.h index 79bdeda..5041f37 100644 --- a/board/freescale/t1040qds/t1040qds.h +++ b/board/freescale/t1040qds/t1040qds.h @@ -9,5 +9,6 @@
void fdt_fixup_board_enet(void *blob); void pci_of_setup(void *blob, bd_t *bd); +int select_i2c_ch_pca9547(u8 ch);
#endif diff --git a/board/freescale/t1040qds/t1040qds_qixis.h b/board/freescale/t1040qds/t1040qds_qixis.h index 2ce8795..98d2d39 100644 --- a/board/freescale/t1040qds/t1040qds_qixis.h +++ b/board/freescale/t1040qds/t1040qds_qixis.h @@ -13,6 +13,18 @@ #define BRDCFG4_EMISEL_MASK 0xE0 #define BRDCFG4_EMISEL_SHIFT 5
+/* BRDCFG5[0:1] controls routing and use of I2C3 & I2C4 ports*/ +#define BRDCFG5_IMX_MASK 0xC0 +#define BRDCFG5_IMX_DIU 0x80 + +/* BRDCFG15[3] controls LCD Panel Powerdown*/ +#define BRDCFG15_LCDPD_MASK 0x10 +#define BRDCFG15_LCDPD_ENABLED 0x00 + +/* BRDCFG15[6:7] controls DIU MUX selction*/ +#define BRDCFG15_DIUSEL_MASK 0x03 +#define BRDCFG15_DIUSEL_HDMI 0x00 + /* SYSCLK */ #define QIXIS_SYSCLK_66 0x0 #define QIXIS_SYSCLK_83 0x1 diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h index 75ea125..3f26559 100644 --- a/include/configs/T1040QDS.h +++ b/include/configs/T1040QDS.h @@ -375,7 +375,7 @@ unsigned long get_board_ddr_clk(void); #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
#define CONFIG_SYS_MONITOR_LEN (512 * 1024) -#define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024) +#define CONFIG_SYS_MALLOC_LEN (10 * 1024 * 1024)
/* Serial Port - controlled on board with jumper J8 * open - index 2 @@ -401,6 +401,25 @@ unsigned long get_board_ddr_clk(void); #define CONFIG_SYS_HUSH_PARSER #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+/* Video */ +#define CONFIG_FSL_DIU_FB +#ifdef CONFIG_FSL_DIU_FB +#define CONFIG_SYS_DIU_ADDR (CONFIG_SYS_CCSRBAR + 0x180000) +#define CONFIG_VIDEO +#define CONFIG_CMD_BMP +#define CONFIG_CFB_CONSOLE +#define CONFIG_VIDEO_SW_CURSOR +#define CONFIG_VGA_AS_SINGLE_DEVICE +#define CONFIG_VIDEO_LOGO +#define CONFIG_VIDEO_BMP_LOGO +#define CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS +/* + * With CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS, flash I/O is really slow, so + * disable empty flash sector detection, which is I/O-intensive. + */ +#undef CONFIG_SYS_FLASH_EMPTY_INFO +#endif + /* pass open firmware flat tree */ #define CONFIG_OF_LIBFDT #define CONFIG_OF_BOARD_SETUP @@ -426,6 +445,11 @@ unsigned long get_board_ddr_clk(void);
/* I2C bus multiplexer */ #define I2C_MUX_CH_DEFAULT 0x8 +#define I2C_MUX_CH_DIU 0xC + +/* LDI/DVI Encoder for display */ +#define CONFIG_SYS_I2C_LDI_ADDR 0x38 +#define CONFIG_SYS_I2C_DVI_ADDR 0x75
/* * RTC configuration @@ -704,6 +728,7 @@ unsigned long get_board_ddr_clk(void); "bank_intlv=cs0_cs1;" \ "usb1: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 && " \
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Priyanka Jain