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Merge branch 'master' of github.com:parallella/oh

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This commit is contained in:
Andreas Olofsson 2016-03-22 16:37:31 -04:00
commit 9e5367cae9
1 changed files with 85 additions and 1 deletions
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86
src/elink/sw/idelay/src/e-main.c
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@ -102,6 +102,90 @@ typedef union {
};
} e_sys_rx_dmacfg_t;
#define EPIPHANY_DEV "/dev/epiphany/mesh0"
#define ESYS_REGS_BASE 0x81000000UL
static ssize_t ee_write_esys(off_t to_addr, int data)
{
e_mmap_t esys;
int memfd;
int *pto;
// Open memory device
memfd = open(EPIPHANY_DEV, O_RDWR | O_SYNC);
if (memfd == -1)
{
warnx("ee_write_esys(): EPIPHANY_DEV file open failure.");
return E_ERR;
}
esys.phy_base = (ESYS_REGS_BASE + to_addr);
esys.page_base = ee_rndl_page(esys.phy_base);
esys.page_offset = esys.phy_base - esys.page_base;
esys.map_size = sizeof(int) + esys.page_offset;
esys.mapped_base = mmap(NULL, esys.map_size, PROT_READ|PROT_WRITE, MAP_SHARED, memfd, esys.page_base);
esys.base = esys.mapped_base + esys.page_offset;
// diag(H_D2) { fprintf(diag_fd, "ee_write_esys(): esys.phy_base = 0x%08x, esys.page_base = 0x%08x, esys.page_offset = 0x%08x, esys.base = 0x%08x, esys.size = 0x%08x\n", (uint) esys.phy_base, (uint) esys.page_base, (uint) esys.page_offset, (uint) esys.base, (uint) esys.map_size); }
if (esys.mapped_base == MAP_FAILED)
{
warnx("ee_write_esys(): ESYS mmap failure.");
return E_ERR;
}
pto = (int *) (esys.base);
// diag(H_D2) { fprintf(diag_fd, "ee_write_esys(): writing to to_addr=0x%08x, pto=0x%08x\n", (uint) (platform.regs_base + to_addr), (uint) pto); }
*pto = data;
munmap(esys.mapped_base, esys.map_size);
close(memfd);
return sizeof(int);
}
static int ee_read_esys(off_t from_addr)
{
e_mmap_t esys;
int memfd;
volatile int *pfrom;
int data;
// Open memory device
memfd = open(EPIPHANY_DEV, O_RDWR | O_SYNC);
if (memfd == -1)
{
warnx("ee_read_esys(): EPIPHANY_DEV file open failure.");
return E_ERR;
}
esys.phy_base = (ESYS_REGS_BASE + from_addr);
esys.page_base = ee_rndl_page(esys.phy_base);
esys.page_offset = esys.phy_base - esys.page_base;
esys.map_size = sizeof(int) + esys.page_offset;
esys.mapped_base = mmap(NULL, esys.map_size, PROT_READ|PROT_WRITE, MAP_SHARED, memfd, esys.page_base);
esys.base = esys.mapped_base + esys.page_offset;
// diag(H_D2) { fprintf(diag_fd, "ee_read_esys(): esys.phy_base = 0x%08x, esys.base = 0x%08x, esys.size = 0x%08x\n", (uint) esys.phy_base, (uint) esys.base, (uint) esys.map_size); }
if (esys.mapped_base == MAP_FAILED)
{
warnx("ee_read_esys(): ESYS mmap failure.");
return E_ERR;
}
pfrom = (int *) (esys.base);
// diag(H_D2) { fprintf(diag_fd, "ee_read_esys(): reading from from_addr=0x%08x, pto=0x%08x\n", (uint) from_addr, (uint) pfrom); }
data = *pfrom;
munmap(esys.mapped_base, esys.map_size);
close(memfd);
return data;
}
int main(int argc, char *argv[]){
e_loader_diag_t e_verbose;
e_platform_t platform;
@ -151,7 +235,7 @@ int main(int argc, char *argv[]){
0xffffffff,0x0000001f};//31
//Gets ELF file name from command line
strcpy(elfFile, "./bin/e-task.elf");
strcpy(elfFile, "e-task.elf");
//Initalize Epiphany device
e_set_host_verbosity(H_D0);