summaryrefslogtreecommitdiff
path: root/src/mainboard
diff options
context:
space:
mode:
authorTom Warren <twarren@nvidia.com>2014-12-05 13:34:53 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-04-13 17:00:42 +0200
commit4633e0f67158f998e1cd10865051ce0d14af8653 (patch)
tree3eb820e5f7ccce9ff6abf22c84d62732f0ba798d /src/mainboard
parent8188ab738e79172bca3e777440a937ddf51b0bde (diff)
downloadcoreboot-4633e0f67158f998e1cd10865051ce0d14af8653.tar.xz
rush: audio: Setup I2S1/DAP2 and EXTPERIPH1/MCLK muxes correctly
With this change, audio 'beeps' are heard on boot if Ctrl-U is pressed, or devmode/recmode is entered. I also tested via an explicit call to VbExBeep in the kernel boot path. Note that a couple of Rush CLs for depthcharge are needed for audio, too. BUG=chrome-os-partner:32582 BRANCH=none TEST=as above. Built and booted Rush/Norrin64. Change-Id: I43c65a4d11c5ab7b16289e19f3b42cfc0300ea7c Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 4a682fb2403f7c6d53e74bfa945481242577f6c3 Original-Change-Id: Ia37f077569afd806ce6574c4c58813fd7aca1644 Original-Signed-off-by: Tom Warren <twarren@nvidia.com> Original-Reviewed-on: https://chromium-review.googlesource.com/233671 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9579 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/rush/mainboard.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/src/mainboard/google/rush/mainboard.c b/src/mainboard/google/rush/mainboard.c
index bb4da19154..341d373971 100644
--- a/src/mainboard/google/rush/mainboard.c
+++ b/src/mainboard/google/rush/mainboard.c
@@ -95,18 +95,33 @@ static void setup_usb(void)
usb_setup_utmip((void *)TEGRA_USB3_BASE);
}
+static const struct pad_config i2s1_pad[] = {
+ /* I2S1 */
+ PAD_CFG_SFIO(DAP2_SCLK, PINMUX_INPUT_ENABLE, I2S1),
+ PAD_CFG_SFIO(DAP2_FS, PINMUX_INPUT_ENABLE, I2S1),
+ PAD_CFG_SFIO(DAP2_DOUT, PINMUX_INPUT_ENABLE, I2S1),
+ PAD_CFG_SFIO(DAP2_DIN, PINMUX_INPUT_ENABLE | PINMUX_TRISTATE, I2S1),
+ /* codec MCLK via EXTPERIPH1 */
+ PAD_CFG_SFIO(DAP_MCLK1, PINMUX_PULL_NONE, EXTPERIPH1),
+};
+
+static const struct funit_cfg audio_funit[] = {
+ /* We need 1.5MHz for I2S1. So we use CLK_M */
+ FUNIT_CFG(I2S1, CLK_M, 1500, i2s1_pad, ARRAY_SIZE(i2s1_pad)),
+};
+
/* Audio init: clocks and enables/resets */
static void setup_audio(void)
{
- /* External peripheral 1: audio codec (max98090) using 12MHz CLK1 */
- clock_configure_source(extperiph1, CLK_M, 12000);
-
/*
- * We need 1.5MHz for I2S1. So, we use CLK_M. CLK_DIVIDER macro
- * returns a divisor (0xe) a little bit off from the ideal value (0xd),
- * but it's good enough for beeps.
+ * External peripheral 1: audio codec (max98090) uses 12MHz CLK1
+ * NOTE: We can't use a funits struct/call here because EXTPERIPH1/2/3
+ * don't have BASE regs or CAR RST/ENA bits. Also, the mux setting for
+ * EXTPERIPH1/DAP_MCLK1 is rolled into the I2S1 padcfg.
*/
- clock_configure_source(i2s1, CLK_M, 1500);
+ clock_configure_source(extperiph1, CLK_M, 12000);
+
+ soc_configure_funits(audio_funit, ARRAY_SIZE(audio_funit));
clock_external_output(1); /* For external MAX98090 audio codec. */