Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10778
-gerrit
commit 125db64cf564754cdfff08ac0fd23f596ba22e43 Author: David Hendricks dhendrix@chromium.org Date: Thu Jun 25 16:59:02 2015 -0700
veyron_brain: Add basic HDMI support
This adds a configure_hdmi() function that drives the HDMI enable output high and configures the iomux. Calls to PMIC functions to enable HDMI power are moved here as well.
BUG=none BRANCH=none TEST=with follow-up patches, we now get a dev screen on Brain.
Change-Id: Ifd2648376c789fb29c9e2e4ab6bdb10ca439e4a2 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: 91ec6a96edaf2042236aee0383e18715014f1013 Original-Change-Id: I0c6e9f8fc5e06f53a1a160d8ab2e32447168139e Original-Signed-off-by: David Hendricks dhendrix@chromium.org Original-Reviewed-on: https://chromium-review.googlesource.com/282046 --- src/mainboard/google/veyron_brain/devicetree.cb | 1 + src/mainboard/google/veyron_brain/mainboard.c | 11 +++++++++++ 2 files changed, 12 insertions(+)
diff --git a/src/mainboard/google/veyron_brain/devicetree.cb b/src/mainboard/google/veyron_brain/devicetree.cb index 4c2ea8f..3ed746c 100644 --- a/src/mainboard/google/veyron_brain/devicetree.cb +++ b/src/mainboard/google/veyron_brain/devicetree.cb @@ -21,5 +21,6 @@ chip soc/rockchip/rk3288 device cpu_cluster 0 on end register "vop_id" = "1" + register "vop_mode" = "VOP_MODE_HDMI" register "framebuffer_bits_per_pixel" = "16" end diff --git a/src/mainboard/google/veyron_brain/mainboard.c b/src/mainboard/google/veyron_brain/mainboard.c index a5c40c23..29f66e3 100644 --- a/src/mainboard/google/veyron_brain/mainboard.c +++ b/src/mainboard/google/veyron_brain/mainboard.c @@ -76,10 +76,20 @@ static void configure_vop(void)
/* lcdc(vop) iodomain select 1.8V */ write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 0)); +}
+static void configure_hdmi(void) +{ rk808_configure_switch(2, 1); /* VCC18_LCD (HDMI_AVDD_1V8) */ rk808_configure_ldo(7, 1000); /* VDD10_LCD (HDMI_AVDD_1V0) */ rk808_configure_switch(1, 1); /* VCC33_LCD */ + + /* set POWER_HDMI_ON */ + gpio_output(GPIO(7, A, 2), 1); + + /* HDMI I2C */ + write32(&rk3288_grf->iomux_i2c5sda, IOMUX_HDMI_EDP_I2C_SDA); + write32(&rk3288_grf->iomux_i2c5scl, IOMUX_HDMI_EDP_I2C_SCL); }
static void mainboard_init(device_t dev) @@ -90,6 +100,7 @@ static void mainboard_init(device_t dev) configure_emmc(); configure_codec(); configure_vop(); + configure_hdmi();
elog_init(); elog_add_watchdog_reset();