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| author | Bastian Ruppert <Bastian.Ruppert@Sewerin.de> | 2012-09-13 22:28:59 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-10-01 10:02:12 -0700 |
| commit | bdb04abe42d808223bec5c9e589109b5d3953a97 (patch) | |
| tree | 3a86ac9c9061ee2ebb80b53fdf7ef663932cb875 | |
| parent | b72db2080bc6d34be8011f1a7f38d9300fdb56be (diff) | |
| download | u-boot-imx-bdb04abe42d808223bec5c9e589109b5d3953a97.zip u-boot-imx-bdb04abe42d808223bec5c9e589109b5d3953a97.tar.gz u-boot-imx-bdb04abe42d808223bec5c9e589109b5d3953a97.tar.bz2 | |
davinci: ea20: reorganisation LCD startup
Signed-off-by: Bastian Ruppert <Bastian.Ruppert@Sewerin.de>
CC: Tom Rini <trini@ti.com>
Acked-by: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | 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 */ |