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platform: imx8m: Fix FIFO depth for i.MX8M 

On i.MX8M series, SAI FIFO is configured to hold 128 words.
(128 x 32 bits).

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
This commit is contained in:
Daniel Baluta 2020-04-22 21:33:32 +03:00 committed by Liam Girdwood
parent 1a5fc0f188
commit 29414aa25e
2 changed files with 7 additions and 2 deletions
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5
src/include/sof/drivers/sai.h
View File

@ -231,7 +231,12 @@
#define SAI_FLAG_PMQOS BIT(0)
#ifdef CONFIG_IMX8M
#define SAI_FIFO_WORD_SIZE 128
#else
#define SAI_FIFO_WORD_SIZE 64
#endif
/* Divides down the audio master clock to generate the bit clock when
* configured for an internal bit clock.
* The division value is (DIV + 1) * 2.

4
src/platform/imx8m/lib/dai.c
View File

@ -20,13 +20,13 @@ static SHARED_DATA struct dai sai[] = {
.base = SAI_3_BASE,
.fifo[SOF_IPC_STREAM_PLAYBACK] = {
.offset = SAI_3_BASE + REG_SAI_TDR0,
.depth = 16,
.depth = 128, /* in 4 bytes words */
/* Handshake is SDMA hardware event */
.handshake = 5,
},
.fifo[SOF_IPC_STREAM_CAPTURE] = {
.offset = SAI_3_BASE + REG_SAI_RDR0,
.depth = 16,
.depth = 128, /* in 4 bytes words */
.handshake = 4,
},
},