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-rw-r--r--src/mainboard/google/rush/mainboard.c42
-rw-r--r--src/soc/nvidia/tegra132/i2c6.c21
-rw-r--r--src/soc/nvidia/tegra132/include/soc/padconfig.h2
3 files changed, 55 insertions, 10 deletions
diff --git a/src/mainboard/google/rush/mainboard.c b/src/mainboard/google/rush/mainboard.c
index 0b85cc0356..2ea0841138 100644
--- a/src/mainboard/google/rush/mainboard.c
+++ b/src/mainboard/google/rush/mainboard.c
@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
- * Copyright 2014 Google Inc.
+ * Copyright 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -32,6 +32,9 @@
#include <soc/nvidia/tegra/dc.h>
#include <soc/display.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+#include <delay.h>
+
static const struct pad_config sdmmc3_pad[] = {
/* MMC3(SDCARD) */
PAD_CFG_SFIO(SDMMC3_CLK, PINMUX_INPUT_ENABLE, SDMMC3),
@@ -68,6 +71,18 @@ static const struct pad_config padcfgs[] = {
* voltage source likes to drive them low on overcurrent conditions */
PAD_CFG_GPIO_INPUT(USB_VBUS_EN0, PINMUX_PULL_UP),
PAD_CFG_GPIO_INPUT(USB_VBUS_EN1, PINMUX_PULL_UP),
+
+ /* backlight_vdd_gpio: P2 */
+ PAD_CFG_GPIO_OUT0(DAP3_DOUT, PINMUX_PULL_NONE),
+
+ /* backlight_en_gpio: H2 */
+ PAD_CFG_GPIO_OUT0(GPIO_PH2, PINMUX_PULL_NONE),
+
+ /* backlight_pwm: H1 */
+ PAD_CFG_SFIO(GPIO_PH1, PINMUX_PULL_NONE, PWM1),
+
+ /* DP HPD */
+ PAD_CFG_SFIO(DP_HPD, PINMUX_INPUT_ENABLE, DP),
};
static const struct pad_config i2c1_pad[] = {
@@ -112,6 +127,27 @@ static const struct funit_cfg audio_funit[] = {
FUNIT_CFG(I2S1, CLK_M, 1500, i2s1_pad, ARRAY_SIZE(i2s1_pad)),
};
+static void configure_display_clocks(void)
+{
+ u32 lclks = CLK_L_DISP1 | CLK_L_HOST1X | CLK_L_PWM;
+ u32 xclks = CLK_X_DPAUX | CLK_X_SOR0;
+
+ clock_enable_clear_reset(lclks, 0, 0, 0, 0, xclks);
+
+ /* Give clocks time to stabilize. */
+ udelay(IO_STABILIZATION_DELAY);
+}
+
+static int configure_display_blocks(void)
+{
+ soc_configure_host1x();
+
+ /* enable display related clocks */
+ configure_display_clocks();
+
+ return 0;
+}
+
/* Audio init: clocks and enables/resets */
static void setup_audio(void)
{
@@ -146,6 +182,10 @@ static void mainboard_init(device_t dev)
setup_audio();
i2c_init(I2C1_BUS); /* for max98090 codec */
+
+ /* if panel needs to bringup */
+ if (!vboot_skip_display_init())
+ configure_display_blocks();
}
void display_startup(device_t dev)
diff --git a/src/soc/nvidia/tegra132/i2c6.c b/src/soc/nvidia/tegra132/i2c6.c
index 86373d621e..73a98562ad 100644
--- a/src/soc/nvidia/tegra132/i2c6.c
+++ b/src/soc/nvidia/tegra132/i2c6.c
@@ -83,14 +83,7 @@ void soc_configure_i2c6pad(void)
* and put Host1X back in reset. DPAUX must remain out of
* reset and the SOR partition must remained unpowergated.
*/
- power_ungate_partition(POWER_PARTID_SOR);
-
- /* Host1X needs a valid clock source so DPAUX can be accessed */
- clock_configure_source(host1x, PLLP, 204000);
-
- enable_sor_periph_clocks();
- remove_clamps(POWER_PARTID_SOR);
- unreset_sor_periphs();
+ soc_configure_host1x();
/* Now we can write the I2C6 mux in DPAUX */
write32(I2C6_PADCTL, (void *)DPAUX_HYBRID_PADCTL);
@@ -106,3 +99,15 @@ void soc_configure_i2c6pad(void)
disable_sor_periph_clocks();
clock_set_reset_l(CLK_L_HOST1X);
}
+
+void soc_configure_host1x(void)
+{
+ power_ungate_partition(POWER_PARTID_SOR);
+
+ /* Host1X needs a valid clock source so DPAUX can be accessed. */
+ clock_configure_source(host1x, PLLP, 204000);
+
+ enable_sor_periph_clocks();
+ remove_clamps(POWER_PARTID_SOR);
+ unreset_sor_periphs();
+}
diff --git a/src/soc/nvidia/tegra132/include/soc/padconfig.h b/src/soc/nvidia/tegra132/include/soc/padconfig.h
index 569fe4624c..843b4ee1cd 100644
--- a/src/soc/nvidia/tegra132/include/soc/padconfig.h
+++ b/src/soc/nvidia/tegra132/include/soc/padconfig.h
@@ -87,5 +87,5 @@ struct pad_config {
void soc_configure_pads(const struct pad_config * const entries, size_t num);
/* I2C6 requires special init as its pad lives int the SOR/DPAUX block */
void soc_configure_i2c6pad(void);
-
+void soc_configure_host1x(void);
#endif /* __SOC_NVIDIA_TEGRA132_PAD_CFG_H */