[U-Boot] [PATCH 1/2] fsl/diu: ch7301 encoder split off from t1040qds/diu.c
Dongsheng Wang
dongsheng.wang at freescale.com
Tue Mar 18 07:15:46 CET 2014
From: Wang Dongsheng <dongsheng.wang at freescale.com>
The ch7301 encoder not only used in t1040qds platform, so we split
it for t1042rdb and LSx platform.
Signed-off-by: Wang Dongsheng <dongsheng.wang at freescale.com>
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index f6a0879..cd4b33b 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -34,6 +34,8 @@ ifndef CONFIG_RAMBOOT_PBL
obj-$(CONFIG_FSL_FIXED_MMC_LOCATION) += sdhc_boot.o
endif
+obj-$(CONFIG_FSL_DIU_CH7301) += diu_ch7301.o
+
obj-$(CONFIG_MPC8541CDS) += cds_pci_ft.o
obj-$(CONFIG_MPC8548CDS) += cds_pci_ft.o
obj-$(CONFIG_MPC8555CDS) += cds_pci_ft.o
diff --git a/board/freescale/common/diu_ch7301.c b/board/freescale/common/diu_ch7301.c
new file mode 100644
index 0000000..497fa1b
--- /dev/null
+++ b/board/freescale/common/diu_ch7301.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ * Authors: Priyanka Jain <Priyanka.Jain at freescale.com>
+ * Wang Dongsheng <dongsheng.wang at freescale.com>
+ *
+ * This file is copied and modified from the original t1040qds/diu.c.
+ * Encoder can be used in T104x and LSx Platform.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <stdio_dev.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
+
+/* Programming of HDMI Chrontel CH7301 connector */
+int diu_set_dvi_encoder(unsigned int pixclock)
+{
+ int ret;
+ u8 temp;
+
+ 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);
+
+ return 0;
+}
diff --git a/board/freescale/common/diu_ch7301.h b/board/freescale/common/diu_ch7301.h
new file mode 100644
index 0000000..8b6ead0
--- /dev/null
+++ b/board/freescale/common/diu_ch7301.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __DIU_HDMI_CH7301__
+#define __DIU_HDMI_CH7301__
+
+/* Programming of HDMI Chrontel CH7301 connector */
+int diu_set_dvi_encoder(unsigned int pixclock);
+
+#endif
diff --git a/board/freescale/t1040qds/diu.c b/board/freescale/t1040qds/diu.c
index ffd074b..0214224 100644
--- a/board/freescale/t1040qds/diu.c
+++ b/board/freescale/t1040qds/diu.c
@@ -13,42 +13,9 @@
#include <video_fb.h>
#include <fsl_diu_fb.h>
#include "../common/qixis.h"
+#include "../common/diu_ch7301.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
@@ -69,98 +36,6 @@
#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;
@@ -172,12 +47,19 @@ void diu_set_pixel_clock(unsigned int pixclock)
pixval = speed_ccb / temp;
/* Program HDMI encoder */
+ /* Switch channel to DIU */
+ select_i2c_ch_pca9547(I2C_MUX_CH_DIU);
+
+ /* Set dispaly encoder */
ret = diu_set_dvi_encoder(temp);
if (ret) {
puts("Failed to set DVI encoder\n");
return;
}
+ /* Switch channel to default */
+ select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+
/* Program pixel clock */
out_be32((unsigned *)CONFIG_SYS_FSL_SCFG_PIXCLK_ADDR,
((pixval << PXCK_BITS_START) & PXCK_MASK));
diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h
index 993f9ae..f4c8547 100644
--- a/include/configs/T1040QDS.h
+++ b/include/configs/T1040QDS.h
@@ -404,6 +404,7 @@ unsigned long get_board_ddr_clk(void);
/* 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
--
1.8.5
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