关于AM5728的EDMA

请问使用的SDK版本是什么？EDMA是用于哪个接口上实现数据搬移的？相关配置代码贴出来一下。

内核是4.9.65
设备树配置如下：在应用层直接映射gpmc地址，读取数据，速度远达不到设备树约束的速度

edma: edma@43300000 {
compatible = "ti,edma3-tpcc";
ti,hwmods = "tpcc";
reg = <0x43300000 0x100000>;
reg-names = "edma3_cc";
interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "edma3_ccint", "edma3_mperr",
"edma3_ccerrint";
dma-requests = <64>;
#dma-cells = <2>;

ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 0>;
ti,edma-memcpy-channels = <20 21>;
/*
* memcpy is disabled, can be enabled with:
* ti,edma-memcpy-channels = <20 21>;
* for example. Note that these channels need to be
* masked in the xbar as well.
*/
};


gpmc: gpmc@50000000 {
compatible = "ti,am3352-gpmc";
ti,hwmods = "gpmc";
reg = <0x50000000 0x37c>; /* device IO registers */
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&edma_xbar 4 0>;
dma-names = "rxtx";
gpmc,num-cs = <8>;
gpmc,num-waitpins = <2>;
#address-cells = <2>;
#size-cells = <1>;
interrupt-controller;
#interrupt-cells = <2>;
gpio-controller;
#gpio-cells = <2>;
status = "disabled";
};


&gpmc{
depth = <1>; /* only create devices on depth 1 */
status = "okay";

#address-cells = <2>;
#size-cells = <1>;
pinctrl-names = "default";
pinctrl-0 = <&gpmc_pins_default>;

ranges = <0 0 0x01000000 0x01000000>; /* CSn0 0, addr 0x01000000, size 0x1000000 (16MiB) */
gpmc_device0@0,0 {
compatible = "cfi-flash";
linux,mtd-name= "intel,pf48f6000m0y1be";
status = "okay";
reg = <0 0 0x01000000>;

/* CONFIG 1 */
gpmc,sync-read = <1>;
gpmc,sync-write = <1>;
bank-width = <2>; /* GPMC_CONFIG1_DEVICESIZE(1) 2: 16bits */
gpmc,mux-add-data = <0>; /* GPMC_CONFIG1_MUXTYPE(0) 2: address-data multiplexing mode */
gpmc,burst-length = <16>; /** 16 **/
gpmc,burst-read = <1>;
gpmc,burst-write = <1>;
gpmc,clk-activation-ns = <5>; /* GPMC 信号相对于 FCLK 到来的延时时间　*/

/* CONFIG 2 */
gpmc,sync-clk-ps = <7500>; /**15000**/ /*9615 14000 15000*/
gpmc,cs-on-ns = <5>; /**15 0 **/
gpmc,cs-rd-off-ns = <60>; /** 108 **/ /*101*/
gpmc,cs-wr-off-ns = <60>; /*101*/

/* CONFIG 3 */
gpmc,adv-on-ns = <0>; /** 3 **/ /*0*/ /* control an address and byte-enable valid setup time */
gpmc,adv-rd-off-ns = <9>; /** 21 **/ /*12*/ /* control an address and byte-enable valid hold time */
gpmc,adv-wr-off-ns = <9>; /** 21 **/ /*12*/ /* control an address and byte-enable valid hold time */

// /* CONFIG 4 */
gpmc,oe-on-ns = <9>; /** 34 **/ /** MAX = 56ns depend on start get data time **/
gpmc,oe-off-ns = <55>; /** 98 **/
gpmc,we-on-ns = <9>; /*27*/
gpmc,we-off-ns = <55>;

/* CONFIG 5 */
gpmc,rd-cycle-ns = <60>; /*101*/
gpmc,wr-cycle-ns = <60>; /*101*/
gpmc,access-ns = <40>; //读数据开始时间
gpmc,page-burst-access-ns = <7>; //读一个数据的时间

/* CONFIG 6 */
gpmc,bus-turnaround-ns = <0>; /* between two large different access deley time */
gpmc,cycle2cycle-delay-ns = <0>; /**0**/
gpmc,wr-data-mux-bus-ns = <0>;
gpmc,wr-access-ns = <50>; /*95*/

gpmc,cycle2cycle-samecsen;
gpmc,cycle2cycle-diffcsen;
};