From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Wed, 15 Aug 2012 19:04:47 +0200 Subject: [U-Boot] [PATCH 1/6] davinci: ea20: reorganisation LCD startup In-Reply-To: <1344583606-12778-1-git-send-email-Bastian.Ruppert@Sewerin.de> References: <1344583606-12778-1-git-send-email-Bastian.Ruppert@Sewerin.de> Message-ID: <502BD6AF.1070603@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 10/08/2012 09:26, Bastian Ruppert wrote: > Signed-off-by: Bastian Ruppert > CC: Tom Rini > CC: Stefano Babic > --- > 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 */ > Acked-by: Stefano Babic Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================