[Blackfin] arch: Enable UART2 and UART3 for bf548

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index fa9debe8d5f4..5453bc3664fc 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -104,6 +104,16 @@ int request_dma(unsigned int channel, char *device_id)
 
         mutex_unlock(&(dma_ch[channel].dmalock));
 
+#ifdef CONFIG_BF54x
+        if (channel >= CH_UART2_RX && channel <= CH_UART3_TX &&
+                strncmp(device_id, "BFIN_UART", 9) == 0)
+                dma_ch[channel].regs->peripheral_map |=
+                        (channel - CH_UART2_RX + 0xC);
+        else
+                dma_ch[channel].regs->peripheral_map |=
+                        (channel - CH_UART2_RX + 0x6);
+#endif
+
         dma_ch[channel].device_id = device_id;
         dma_ch[channel].irq_callback = NULL;