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author | Bertrik Sikken <bertrik@sikken.nl> | 2009-05-06 17:33:56 +0000 |
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committer | Bertrik Sikken <bertrik@sikken.nl> | 2009-05-06 17:33:56 +0000 |
commit | b5886beb816b15b3ca99c862897a8c8b11b087f6 (patch) | |
tree | 62aeccbc05279eea1352adeb102fb4a8e4b4b22a /firmware/target/arm/as3525 | |
parent | 330f9359e2b7ef081ef66e4605fb2ca0f0b52932 (diff) | |
download | rockbox-b5886beb816b15b3ca99c862897a8c8b11b087f6.tar.gz rockbox-b5886beb816b15b3ca99c862897a8c8b11b087f6.zip |
Allow a clock divider larger than 255 for the internal i2c bus to the as3525 ascodec.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20861 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/as3525')
-rw-r--r-- | firmware/target/arm/as3525/ascodec-as3525.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/firmware/target/arm/as3525/ascodec-as3525.c b/firmware/target/arm/as3525/ascodec-as3525.c index 9d13994cbc..4f13dd6300 100644 --- a/firmware/target/arm/as3525/ascodec-as3525.c +++ b/firmware/target/arm/as3525/ascodec-as3525.c | |||
@@ -65,12 +65,15 @@ void i2c_init(void) | |||
65 | /* initialises the internal i2c bus and prepares for transfers to the codec */ | 65 | /* initialises the internal i2c bus and prepares for transfers to the codec */ |
66 | void ascodec_init(void) | 66 | void ascodec_init(void) |
67 | { | 67 | { |
68 | int prescaler; | ||
69 | |||
68 | /* enable clock */ | 70 | /* enable clock */ |
69 | CGU_PERI |= CGU_I2C_AUDIO_MASTER_CLOCK_ENABLE; | 71 | CGU_PERI |= CGU_I2C_AUDIO_MASTER_CLOCK_ENABLE; |
70 | 72 | ||
71 | /* prescaler for i2c clock */ | 73 | /* prescaler for i2c clock */ |
72 | I2C2_CPSR0 = CLK_DIV(AS3525_PCLK_FREQ, AS3525_I2C_FREQ); | 74 | prescaler = CLK_DIV(AS3525_PCLK_FREQ, AS3525_I2C_FREQ); |
73 | I2C2_CPSR1 = 0; /* MSB */ | 75 | I2C2_CPSR0 = prescaler & 0xFF; |
76 | I2C2_CPSR1 = (prescaler >> 8) & 0xFF; | ||
74 | 77 | ||
75 | /* set i2c slave address of codec part */ | 78 | /* set i2c slave address of codec part */ |
76 | I2C2_SLAD0 = AS3514_I2C_ADDR << 1; | 79 | I2C2_SLAD0 = AS3514_I2C_ADDR << 1; |