[U-Boot] [PATCH 1/6] davinci: ea20: reorganisation LCD startup

[Bastian Ruppert]

Signed-off-by: Bastian Ruppert <bastian.rupp...@sewerin.de>
CC: Tom Rini <tr...@ti.com>
CC: Stefano Babic <sba...@denx.de>
---
 board/davinci/ea20/ea20.c |   23 +++++++++++++++--------
 1 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/board/davinci/ea20/ea20.c b/board/davinci/ea20/ea20.c
index 7e00040..69307e4 100644
--- a/board/davinci/ea20/ea20.c
+++ b/board/davinci/ea20/ea20.c
@@ -176,6 +176,9 @@ int board_early_init_f(void)
        if (davinci_configure_pin_mux(gpio_pins, ARRAY_SIZE(gpio_pins)) != 0)
                return 1;
 
+       /* Set DISP_ON high to enable LCD output*/
+       gpio_direction_output(97, 1);
+
        /* Set the RESETOUTn low */
        gpio_direction_output(111, 0);
 
@@ -188,9 +191,6 @@ int board_early_init_f(void)
        /* Set LCD_B_PWR low to power down LCD Backlight*/
        gpio_direction_output(102, 0);
 
-       /* Set DISP_ON low to disable LCD output*/
-       gpio_direction_output(97, 0);
-
 #ifndef CONFIG_USE_IRQ
        irq_init();
 #endif
@@ -250,11 +250,6 @@ int board_early_init_f(void)
        writel(readl(&davinci_syscfg_regs->mstpri[2]) & 0x0fffffff,
               &davinci_syscfg_regs->mstpri[2]);
 
-       /* Set LCD_B_PWR low to power up LCD Backlight*/
-       gpio_set_value(102, 1);
-
-       /* Set DISP_ON low to disable LCD output*/
-       gpio_set_value(97, 1);
 
        return 0;
 }
@@ -276,6 +271,9 @@ int board_init(void)
 
 int board_late_init(void)
 {
+       unsigned char buf[2];
+       int ret;
+
        /* PinMux for HALTEN */
        if (davinci_configure_pin_mux(halten_pin, ARRAY_SIZE(halten_pin)) != 0)
                return 1;
@@ -285,6 +283,15 @@ int board_late_init(void)
 
        setenv("stdout", "serial");
 
+       /* Set fixed contrast settings for LCD via I2C potentiometer */
+       buf[0] = 0x00;
+       buf[1] = 0xd7;
+       ret = i2c_write(0x2e, 6, 1, buf, 2);
+       if (ret)
+               puts("\nContrast Settings FAILED\n");
+
+       /* Set LCD_B_PWR high to power up LCD Backlight*/
+       gpio_set_value(102, 1);
        return 0;
 }
 #endif /* CONFIG_BOARD_LATE_INIT */
-- 
1.7.0.4

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