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| author | Bastian Ruppert <Bastian.Ruppert@Sewerin.de> | 2011-10-04 23:43:34 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-11-03 22:56:26 +0100 |
| commit | 8540b1691981bf68cb063367a595c7985afd3c49 (patch) | |
| tree | 52f6d3a5253728aa4e6ab86ee1f4b9b0351ccdaa /board/davinci/ea20/ea20.c | |
| parent | e5ee9125ecff23f337f26834c07a1f0252378818 (diff) | |
| download | u-boot-imx-8540b1691981bf68cb063367a595c7985afd3c49.zip u-boot-imx-8540b1691981bf68cb063367a595c7985afd3c49.tar.gz u-boot-imx-8540b1691981bf68cb063367a595c7985afd3c49.tar.bz2 | |
Davinci: ea20: add gpios for LCD backlight control
Signed-off-by: Bastian Ruppert <Bastian.Ruppert@Sewerin.de>
CC: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'board/davinci/ea20/ea20.c')
| -rw-r--r-- | board/davinci/ea20/ea20.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/board/davinci/ea20/ea20.c b/board/davinci/ea20/ea20.c index 1a57baf..c28d8df 100644 --- a/board/davinci/ea20/ea20.c +++ b/board/davinci/ea20/ea20.c @@ -95,7 +95,9 @@ const struct pinmux_config nand_pins[] = { const struct pinmux_config gpio_pins[] = { { pinmux(13), 8, 0 }, /* GPIO6[15] RESETOUTn on SOM*/ { pinmux(13), 8, 5 }, /* GPIO6[10] U0_SW0 on EA20-00101_2*/ - { pinmux(13), 8, 3 } /* GPIO6[12] U0_SW1 on EA20-00101_2*/ + { pinmux(13), 8, 3 }, /* GPIO6[12] U0_SW1 on EA20-00101_2*/ + { pinmux(19), 8, 5 }, /* GPIO6[1] DISP_ON */ + { pinmux(14), 8, 1 } /* GPIO6[6] LCD_B_PWR*/ }; const struct pinmux_config halten_pin[] = { @@ -144,6 +146,16 @@ int board_early_init_f(void) &gpio6_base->set_data); writel((readl(&gpio6_base->dir) & ~(1 << 12)), &gpio6_base->dir); + /* Set LCD_B_PWR low to power down LCD Backlight*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 6)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 6)), &gpio6_base->dir); + + /* Set DISP_ON low to disable LCD output*/ + writel((readl(&gpio6_base->set_data) & ~(1 << 1)), + &gpio6_base->set_data); + writel((readl(&gpio6_base->dir) & ~(1 << 1)), &gpio6_base->dir); + #ifndef CONFIG_USE_IRQ irq_init(); #endif |