From 31dc0acd9b8c3e5d30aa4e64ab1f24fac84bac1a Mon Sep 17 00:00:00 2001 From: "Ronald G. Minnich" Date: Wed, 6 Mar 2013 08:50:50 -0800 Subject: Google/Snow: enable sound hardware clocks Set up the clocks used for sound and turn on the sound clock. Change-Id: Ic59bfa9ae87116299503e6d25aeefba98c842fb8 Signed-off-by: Gabe Black Signed-off-by: Ronald G. Minnich Reviewed-on: http://review.coreboot.org/2587 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- src/mainboard/google/snow/ramstage.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/mainboard/google/snow/ramstage.c b/src/mainboard/google/snow/ramstage.c index 5970357512..9f259ef30e 100644 --- a/src/mainboard/google/snow/ramstage.c +++ b/src/mainboard/google/snow/ramstage.c @@ -19,6 +19,8 @@ #include #include +#include +#include void hardwaremain(int boot_complete); void main(void) @@ -32,5 +34,14 @@ void main(void) ((CONFIG_DRAM_SIZE_MB << 20UL) * CONFIG_NR_DRAM_BANKS) - CONFIG_COREBOOT_TABLES_SIZE; + const unsigned epll_hz = 192000000; + const unsigned sample_rate = 48000; + const unsigned lr_frame_size = 256; + clock_epll_set_rate(epll_hz); + clock_select_i2s_clk_source(); + clock_set_i2s_clk_prescaler(epll_hz, sample_rate * lr_frame_size); + + power_enable_xclkout(); + hardwaremain(0); } -- cgit v1.2.3