diff options
Diffstat (limited to 'firmware/target/arm')
-rw-r--r-- | firmware/target/arm/rk27xx/pcm-rk27xx.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/firmware/target/arm/rk27xx/pcm-rk27xx.c b/firmware/target/arm/rk27xx/pcm-rk27xx.c index 87830f47b4..b8ae56adaf 100644 --- a/firmware/target/arm/rk27xx/pcm-rk27xx.c +++ b/firmware/target/arm/rk27xx/pcm-rk27xx.c | |||
@@ -130,7 +130,7 @@ static void i2s_init(void) | |||
130 | { | 130 | { |
131 | #if defined(HAVE_RK27XX_CODEC) | 131 | #if defined(HAVE_RK27XX_CODEC) |
132 | /* iomux I2S internal */ | 132 | /* iomux I2S internal */ |
133 | SCU_IOMUXA_CON &= ~(1<<18); /* i2s external bit */ | 133 | SCU_IOMUXA_CON &= ~(1<<19); /* i2s external bit */ |
134 | SCU_IOMUXB_CON &= ~((1<<4) | /* i2s_mclk */ | 134 | SCU_IOMUXB_CON &= ~((1<<4) | /* i2s_mclk */ |
135 | (1<<3) | /* i2s_sdo */ | 135 | (1<<3) | /* i2s_sdo */ |
136 | (1<<2) | /* i2s_sdi */ | 136 | (1<<2) | /* i2s_sdi */ |
@@ -138,7 +138,7 @@ static void i2s_init(void) | |||
138 | (1<<0)); /* i2s_bck */ | 138 | (1<<0)); /* i2s_bck */ |
139 | #else | 139 | #else |
140 | /* iomux I2S external */ | 140 | /* iomux I2S external */ |
141 | SCU_IOMUXA_CON |= (1<<18); /* i2s external bit */ | 141 | SCU_IOMUXA_CON |= (1<<19); /* i2s external bit */ |
142 | SCU_IOMUXB_CON |= ((1<<4) | /* i2s_mclk */ | 142 | SCU_IOMUXB_CON |= ((1<<4) | /* i2s_mclk */ |
143 | (1<<3) | /* i2s_sdo */ | 143 | (1<<3) | /* i2s_sdo */ |
144 | (1<<2) | /* i2s_sdi */ | 144 | (1<<2) | /* i2s_sdi */ |
@@ -152,14 +152,18 @@ static void i2s_init(void) | |||
152 | 152 | ||
153 | /* configure I2S module */ | 153 | /* configure I2S module */ |
154 | I2S_IER = 0; /* disable all i2s interrupts */ | 154 | I2S_IER = 0; /* disable all i2s interrupts */ |
155 | 155 | ||
156 | I2S_TXCTL = (1<<16) | /* LRCK/SCLK = 64 */ | 156 | I2S_TXCTL = (1<<16) | /* LRCK/SCLK = 64 */ |
157 | (4<<8) | /* MCLK/SCLK = 4 */ | 157 | (4<<8) | /* MCLK/SCLK = 4 */ |
158 | (1<<4) | /* 16bit samples */ | 158 | (1<<4) | /* 16bit samples */ |
159 | (0<<3) | /* stereo */ | 159 | (0<<3) | /* stereo */ |
160 | (0<<1) | /* I2S IF */ | 160 | (0<<1) | /* I2S IF */ |
161 | #ifdef CODEC_SLAVE | ||
162 | (1<<0); /* master mode */ | ||
163 | #else | ||
161 | (0<<0); /* slave mode */ | 164 | (0<<0); /* slave mode */ |
162 | 165 | #endif | |
166 | |||
163 | /* the fifo is 16x32bits according to my tests | 167 | /* the fifo is 16x32bits according to my tests |
164 | * while the docs state 32x32bits | 168 | * while the docs state 32x32bits |
165 | */ | 169 | */ |
@@ -173,8 +177,13 @@ static void i2s_init(void) | |||
173 | (0<<4) | /* Req1 for Tx fifo */ | 177 | (0<<4) | /* Req1 for Tx fifo */ |
174 | (1<<3) | /* Req2 for Rx fifo */ | 178 | (1<<3) | /* Req2 for Rx fifo */ |
175 | (0<<2) | /* normal operation */ | 179 | (0<<2) | /* normal operation */ |
176 | (0<<1) | /* start Tx (in master mode) */ | 180 | #ifdef CODEC_SLAVE |
177 | (0<<0); /* start Rx (in master mode) */ | 181 | (1<<1) | /* start Tx (master mode) */ |
182 | (1<<0); /* start Rx (master mode) */ | ||
183 | #else | ||
184 | (0<<1) | /* not used in slave mode */ | ||
185 | (0<<0); /* not used in slave mode */ | ||
186 | #endif | ||
178 | } | 187 | } |
179 | 188 | ||
180 | void pcm_play_dma_init(void) | 189 | void pcm_play_dma_init(void) |