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请教TI的omap处理器的dmas的通道是如何分配的呢?



如下节点是uart1的节点,使用的是通道49,50,查看uart2,uart3,uart4,uart5... 它的序号并

不是连续的,另外,release的版本当中,uart8没有dmas属性,请教如何确定它的值呢,

目前 uart8已经正确配置pin mux,但是写数据时uart8_txd并没有信号输出,检查发现uart8

没有dmas属性。

59 uart1: serial@4806a000 {
 60         compatible = "ti,omap4-uart";
 61         reg = <0x4806a000 0x100>;
 62         interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
 63         ti,hwmods = "uart1";
 64         clock-frequency = <48000000>;
 65         status = "disabled";
 66         /* Requesting crossbar input 49 and 50 */
 67         dmas = <&sdma_xbar 49>, <&sdma_xbar 50>;
 68         dma-names = "tx", "rx";
 69 };

谢谢

BRs

Wufeng

15618297805