我用的代碼模闆是C:\ti\pdk_C6678_1_1_2_6\packages\ti\drv\pcie\example\sample 查相關PCIE協定在RC配置EP時是基于ID的跟位址沒有關系
6678 PCIe 與FPGA LINK UP 後 不能獲得FPGA的DEVICE_ID和VENDDR_ID 求大神指導
1.配置DSP為RC ,FPGA為EP
2.本地配置寄存器配置如下：
barCfg.location = pcie_LOCATION_LOCAL; //配置本地的配置寄存器
barCfg.mode = pcie_RC_MODE;
barCfg.base = 0x70000000;//PCIE_IB_LO_ADDR_M;
barCfg.prefetch = pcie_BAR_NON_PREF;
barCfg.type = pcie_BAR_TYPE32;
barCfg.memSpace = pcie_BAR_MEM_MEM;
barCfg.idx = PCIE_BAR_IDX_M;//指定翻譯區域1
if ((retVal = Pcie_cfgBar(handle, &barCfg)) != pcie_RET_OK)
{
System_printf ("Failed to configure BAR (%d)\n", (int)retVal);
exit(1);
}
3.配置輸入位址轉換
ibCfg.ibBar = PCIE_BAR_IDX_M; //使用的是BAR1也可以使用 2,3,4,5 BAR0是給EP的配置空間
ibCfg.ibStartAddrLo = PCIE_IB_LO_ADDR_M;//0x90000000
ibCfg.ibStartAddrHi = PCIE_IB_HI_ADDR_M;//0x00000000
ibCfg.ibOffsetAddr = (uint32_t)pcieConvert_CoreLocal2GlobalAddr ((uint32_t)dstBuf.buf);
ibCfg.region = PCIE_IB_REGION_M; //指定翻譯區域0 也可以選擇 1、2、3
4 輸出位址轉換
if ((retVal = pcieObTransCfg (handle, PCIE_OB_LO_ADDR_M(0x70000000), PCIE_OB_HI_ADDR_M(0x00000000), PCIE_OB_REGION_M)) != pcie_RET_OK)
5.LINK UP之後的代碼如下
System_printf ("Link is up.\n");
priority.mstPrivID = 11;
setRegs.priority = &priority;
Pcie_writeRegs (handle, pcie_LOCATION_REMOTE, &setRegs);
remote_cfg_setup.type = 0;
remote_cfg_setup.bus = 0;
remote_cfg_setup.device = 0;
remote_cfg_setup.func = 0;
setRegs.cfgTrans = &remote_cfg_setup;
if ((retVal = Pcie_writeRegs (handle, pcie_LOCATION_REMOTE, &setRegs)) != pcie_RET_OK)
{
System_printf ("SET CMD STATUS register failed!\n");
}
if ((retVal = Pcie_getMemSpaceRange (handle, &pcieBase, NULL)) != pcie_RET_OK) {
System_printf ("getMemSpaceRange failed\n", (int)retVal);
exit(1);
}
volatile UInt32 *epCfg = (UInt32 *)0x21801000;
int n=0;
for(n = 0; n < 116; n+=4)
{
System_printf("offset: 0x%x : %08x %08x %08x %08x\n", n*4, epCfg[n+0], epCfg[n+1], epCfg[n+2], epCfg[n+3]);
System_flush();
}
volatile UInt32 *epCfg1 = (UInt32 *)0x21802000;
for(n = 0; n < 116; n+=4)
{
System_printf("offset: 0x%x : %08x %08x %08x %08x\n", n*4, epCfg1[n+0], epCfg1[n+1], epCfg1[n+2], epCfg1[n+3]);
System_flush();
}
6.列印資訊如下
Successfully configured Inbound Translation!
Successfully configured Outbound Translation!
Starting link training...
Link is up.
offset: 0x0 : 8888104c 00100146 00000001 00010000
offset: 0x10 : 00000000 70000000 00000000 00000000
offset: 0x20 : 00000000 00000000 00000000 00000000
offset: 0x30 : 00000000 00000040 00000000 000001ff
offset: 0x40 : 00035001 00000000 00000000 00000000
offset: 0x50 : 00807005 00000000 00000000 00000000
offset: 0x60 : 00000000 00000000 00000000 00000000
offset: 0x70 : 00420010 00008001 0005281f 00135422
offset: 0x80 : 10110008 00000040 004003c0 00000000
offset: 0x90 : 00000000 0000001f 00000000 00000006
offset: 0xa0 : 00010002 00000000 00000000 00000000
offset: 0xb0 : 00000000 00000000 00000000 00000000
offset: 0xc0 : 00000000 00000000 00000000 00000000
offset: 0xd0 : 00000000 00000000 00000000 00000000
offset: 0xe0 : 00000000 00000000 00000000 00000000
offset: 0xf0 : 00000000 00000000 00000000 00000000
offset: 0x100 : 00010001 00002000 00000000 00062030
offset: 0x110 : 00000001 00002000 000001ed 00000000
offset: 0x120 : 00000000 00000000 00000000 00000000
offset: 0x130 : 00000057 00000000 00000000 00000000
offset: 0x140 : 00000000 00000000 00000000 00000000
offset: 0x150 : 00000000 00000000 00000000 00000000
offset: 0x160 : 00000000 00000000 00000000 00000000
offset: 0x170 : 00000000 00000000 00000000 00000000
offset: 0x180 : 00000000 00000000 00000000 00000000
offset: 0x190 : 00000000 00000000 00000000 00000000
offset: 0x1a0 : 00000000 00000000 00000000 00000000
offset: 0x1b0 : 00000000 00000000 00000000 00000000
offset: 0x1c0 : 00000000 00000000 00000000 00000000
offset: 0x0 : 00000000 00000000 21802000 00000070
offset: 0x10 : 00000000 00000000 21802000 00000000
offset: 0x20 : 00000000 00000000 21802000 00000004
offset: 0x30 : 00000000 00000000 21802000 00000008
offset: 0x40 : 00000000 00000000 21802000 0000000c
offset: 0x50 : 00000000 00000000 21802000 00000010
offset: 0x60 : 00000000 00000000 21802000 00000014
offset: 0x70 : 00000000 00000000 21802000 00000018
offset: 0x80 : 00000000 00000000 21802000 0000001c
offset: 0x90 : 00000000 00000000 21802000 00000020
offset: 0xa0 : 00000000 00000000 21802000 00000024
offset: 0xb0 : 00000000 00000000 21802000 00000028
offset: 0xc0 : 00000000 00000000 21802000 0000002c
offset: 0xd0 : 00000000 00000000 21802000 00000030
offset: 0xe0 : 00000000 00000000 21802000 00000034
offset: 0xf0 : 00000000 00000000 21802000 00000038
offset: 0x100 : 00000000 00000000 21802000 0000003c
offset: 0x110 : 00000000 00000000 21802000 00000040
offset: 0x120 : 00000000 00000000 21802000 00000044
offset: 0x130 : 00000000 00000000 21802000 00000048
offset: 0x140 : 00000000 00000000 21802000 0000004c
offset: 0x150 : 00000000 00000000 21802000 00000050
offset: 0x160 : 00000000 00000000 21802000 00000054
offset: 0x170 : 00000000 00000000 21802000 00000058
offset: 0x180 : 00000000 00000000 21802000 0000005c
offset: 0x190 : 00000000 00000000 21802000 00000060
offset: 0x1a0 : 00000000 00000000 21802000 00000064
offset: 0x1b0 : 00000000 00000000 21802000 00000068
offset: 0x1c0 : 00000000 00000000 21802000 0000006c