diff options
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/nyan_big/mainboard.c | 7 | ||||
| -rw-r--r-- | src/mainboard/google/nyan_blaze/mainboard.c | 7 |
2 files changed, 8 insertions, 6 deletions
diff --git a/src/mainboard/google/nyan_big/mainboard.c b/src/mainboard/google/nyan_big/mainboard.c index 997ceb0c2e..75ff0e7132 100644 --- a/src/mainboard/google/nyan_big/mainboard.c +++ b/src/mainboard/google/nyan_big/mainboard.c @@ -53,10 +53,11 @@ static void set_clock_sources(void) clock_configure_irregular_source(extperiph1, CLK_M, 12000, 3); /* - * I2S1 can use either PLLP or PLLA. Using PLLP is sufficient now since - * we only need 4.8MHz. Note the source id of PLLP for I2S is 4. + * We need 1.5MHz. 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. The source id of CLK_M for I2S is 6. */ - clock_configure_irregular_source(i2s1, PLLP, 4800, 4); + clock_configure_irregular_source(i2s1, CLK_M, 1500, 6); /* Note source id of PLLP for HOST1x is 4. */ clock_configure_irregular_source(host1x, PLLP, 408000, 4); diff --git a/src/mainboard/google/nyan_blaze/mainboard.c b/src/mainboard/google/nyan_blaze/mainboard.c index dc105c6976..2f385bcbc4 100644 --- a/src/mainboard/google/nyan_blaze/mainboard.c +++ b/src/mainboard/google/nyan_blaze/mainboard.c @@ -53,10 +53,11 @@ static void set_clock_sources(void) clock_configure_irregular_source(extperiph1, CLK_M, 12000, 3); /* - * I2S1 can use either PLLP or PLLA. Using PLLP is sufficient now since - * we only need 4.8MHz. Note the source id of PLLP for I2S is 4. + * We need 1.5MHz. 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. The source id of CLK_M for I2S is 6. */ - clock_configure_irregular_source(i2s1, PLLP, 4800, 4); + clock_configure_irregular_source(i2s1, CLK_M, 1500, 6); /* Note source id of PLLP for HOST1x is 4. */ clock_configure_irregular_source(host1x, PLLP, 408000, 4); |