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kontron/ktqm77: Improve W83627DHG's GPIO config 

Fix some outputs of the super i/o that should be GPIOs and make
variables out of magic values that configure LVDS.

Change-Id: Ib9eef065980cefff0046485549a68cf8f070d5b9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/6248
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Nico Huber 2013-10-22 11:07:23 +02:00 committed by Patrick Georgi
parent 2b2f849b53
commit 40f9ce93fa
1 changed files with 11 additions and 2 deletions
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13
src/mainboard/kontron/ktqm77/romstage.c
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@ -140,13 +140,22 @@ static void pnp_exit_ext_func_mode(device_t dev)
static void superio_gpio_config(void) static void superio_gpio_config(void)
{ {
int lvds_3v = 0; // 0 (5V) or 1 (3V3)
int dis_bl_inv = 1; // backlight inversion: 1 = disabled, 0 = enabled
device_t dev = PNP_DEV(0x2e, 0x9); device_t dev = PNP_DEV(0x2e, 0x9);
pnp_enter_ext_func_mode(dev); pnp_enter_ext_func_mode(dev);
pnp_write_config(dev, 0x29, 0x02); /* Pins 119, 120 are GPIO21, 20 */
pnp_write_config(dev, 0x30, 0x03); /* Enable GPIO2+3 */
pnp_write_config(dev, 0x2a, 0x01); /* Pins 62, 63, 65, 66 are
GPIO27, 26, 25, 24 */
pnp_write_config(dev, 0x2c, 0xc3); /* Pin 90 is GPIO32,
Pins 78~85 are UART B */
pnp_write_config(dev, 0x2d, 0x00); /* Pins 67, 68, 70~73, 75, 77 are
GPIO57~50 */
pnp_set_logical_device(dev); pnp_set_logical_device(dev);
/* Values can only be changed, when devices are enabled. */ /* Values can only be changed, when devices are enabled. */
pnp_write_config(dev, 0x30, 0x03); /* Enable GPIO2+3 */
pnp_write_config(dev, 0xe3, 0xdd); /* GPIO2 bits 1, 5 are output */ pnp_write_config(dev, 0xe3, 0xdd); /* GPIO2 bits 1, 5 are output */
pnp_write_config(dev, 0xe4, 0x22); /* GPIO2 bits 1, 5 are 1 */ pnp_write_config(dev, 0xe4, (dis_bl_inv << 5) | (lvds_3v << 1)); /* GPIO2 bits 1, 5 */
pnp_exit_ext_func_mode(dev); pnp_exit_ext_func_mode(dev);
} }