75 lines
1.8 KiB
C
Executable File
75 lines
1.8 KiB
C
Executable File
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <asm/arch/dma.h>
|
|
|
|
|
|
static void sunxi_dma_isr(void *p_arg)
|
|
{
|
|
printf("dma int occur\n");
|
|
}
|
|
|
|
static int do_sunxi_dma_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
unsigned int src_addr = 0, dst_addr= 0, len = 512;
|
|
sunxi_dma_setting_t cfg;
|
|
uint hdma;
|
|
u32 timeout = 0xfffff;
|
|
|
|
printf("make sure dma contorller has inited\n");
|
|
//dma
|
|
cfg.loop_mode = 0;
|
|
cfg.wait_cyc = 8;
|
|
cfg.data_block_size = 1 * 32/8;
|
|
//config recv(from dram to dram)
|
|
cfg.cfg.src_drq_type = DMAC_CFG_SRC_TYPE_DRAM; //dram
|
|
cfg.cfg.src_addr_mode = DMAC_CFG_DEST_ADDR_TYPE_LINEAR_MODE;
|
|
cfg.cfg.src_burst_length = DMAC_CFG_SRC_1_BURST;
|
|
cfg.cfg.src_data_width = DMAC_CFG_SRC_DATA_WIDTH_32BIT;
|
|
cfg.cfg.reserved0 = 0;
|
|
|
|
cfg.cfg.dst_drq_type = DMAC_CFG_DEST_TYPE_DRAM; //DRAM
|
|
cfg.cfg.dst_addr_mode = DMAC_CFG_DEST_ADDR_TYPE_LINEAR_MODE;
|
|
cfg.cfg.dst_burst_length = DMAC_CFG_DEST_1_BURST;
|
|
cfg.cfg.dst_data_width = DMAC_CFG_DEST_DATA_WIDTH_32BIT;
|
|
cfg.cfg.reserved1 = 0;
|
|
|
|
if(argc < 3)
|
|
{
|
|
printf("parameters error\n");
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
/* use argument only*/
|
|
src_addr = simple_strtoul(argv[1], NULL, 16);
|
|
dst_addr = simple_strtoul(argv[2], NULL, 16);
|
|
if(argc == 4)
|
|
len = simple_strtoul(argv[3], NULL, 16);
|
|
}
|
|
len = ALIGN(len, 4);
|
|
printf("sunxi dma: 0x%08x ====> 0x%08x, len %d \n", src_addr, dst_addr, len);
|
|
hdma = sunxi_dma_request(0);
|
|
|
|
sunxi_dma_install_int( hdma, sunxi_dma_isr, NULL);
|
|
sunxi_dma_enable_int(hdma);
|
|
|
|
sunxi_dma_setting(hdma,&cfg);
|
|
sunxi_dma_start(hdma,src_addr,dst_addr,len);
|
|
|
|
while((timeout-- > 0)&&sunxi_dma_querystatus(hdma));
|
|
if (timeout <= 0) {
|
|
printf("wait dma timeout!\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
U_BOOT_CMD(
|
|
sunxi_dma, 3, 1, do_sunxi_dma_test,
|
|
"do dma test",
|
|
"sunxi_dma src_addr dst_addr"
|
|
);
|