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#include <common.h>
#include <malloc.h>
#if defined(CONFIG_CMD_BSP)
#include <command.h>
#endif
#include <pci.h>
#include <galileo/pci.h>
#include "zuma_pbb.h"
#undef DEBUG
#define PAT_LO 0x00010203
#define PAT_HI 0x04050607
static PBB_DMA_REG_MAP *zuma_pbb_reg = NULL;
static char test_buf1[2048];
static char test_buf2[2048];
void zuma_init_pbb(void);
int zuma_mbox_init(void);
int zuma_test_dma(int cmd, int size);
int zuma_test_dma (int cmd, int size)
{
static const char *const test_legend[] = {
"write", "verify",
"copy", "compare",
"write inc", "verify inc"
};
register int i, j;
unsigned int p1 = ((unsigned int) test_buf1 + 0xff) & (~0xff);
unsigned int p2 = ((unsigned int) test_buf2 + 0xff) & (~0xff);
volatile unsigned int *ps = (unsigned int *) p1;
volatile unsigned int *pd = (unsigned int *) p2;
unsigned int funct, pat_lo = PAT_LO, pat_hi = PAT_HI;
DMA_INT_STATUS stat;
int ret = 0;
if (!zuma_pbb_reg) {
printf ("not initted\n");
return -1;
}
if (cmd < 0 || cmd > 5) {
printf ("inv cmd %d\n", cmd);
return -1;
}
if (cmd == 2 || cmd == 3) {
/* not implemented */
return 0;
}
if (size <= 0 || size > 1024)
size = 1024;
size &= (~7); /* throw away bottom 3 bits */
p1 = ((unsigned int) test_buf1 + 0xff) & (~0xff);
p2 = ((unsigned int) test_buf2 + 0xff) & (~0xff);
memset ((void *) p1, 0, size);
memset ((void *) p2, 0, size);
for (i = 0; i < size / 4; i += 2) {
ps[i] = pat_lo;
ps[i + 1] = pat_hi;
if (cmd == 4 || cmd == 5) {
unsigned char *pl = (unsigned char *) &pat_lo;
unsigned char *ph = (unsigned char *) &pat_hi;
for (j = 0; j < 4; j++) {
pl[j] += 8;
ph[j] += 8;
}
}
}
funct = (1 << 31) | (cmd << 24) | (size);
zuma_pbb_reg->int_mask.pci_bits.chan0 =
EOF_RX_FLAG | EOF_TX_FLAG | EOB_TX_FLAG;
zuma_pbb_reg->debug_57 = PAT_LO; /* patl */
zuma_pbb_reg->debug_58 = PAT_HI; /* path */
zuma_pbb_reg->debug_54 = cpu_to_le32 (p1); /* src 0x01b0 */
zuma_pbb_reg->debug_55 = cpu_to_le32 (p2); /* dst 0x01b8 */
zuma_pbb_reg->debug_56 = cpu_to_le32 (funct); /* func, 0x01c0 */
/* give DMA time to chew on things.. dont use DRAM or PCI */
/* if you can avoid it. */
do {
for (i = 0; i < 1000 * 10; i++);
} while (le32_to_cpu (zuma_pbb_reg->debug_56) & (1 << 31));
stat.word = zuma_pbb_reg->status.word;
zuma_pbb_reg->int_mask.word = 0;
printf ("stat: %08x (%x)\n", stat.word, stat.pci_bits.chan0);
printf ("func: %08x\n", le32_to_cpu (zuma_pbb_reg->debug_56));
printf ("src @%08x: %08x %08x %08x %08x\n", p1, ps[0], ps[1], ps[2],
ps[3]);
printf ("dst @%08x: %08x %08x %08x %08x\n", p2, pd[0], pd[1], pd[2],
pd[3]);
printf ("func: %08x\n", le32_to_cpu (zuma_pbb_reg->debug_56));
if (cmd == 0 || cmd == 4) {
/* this is a write */
if (!(stat.pci_bits.chan0 & EOF_RX_FLAG) || /* not done */
(memcmp ((void *) ps, (void *) pd, size) != 0)) { /* cmp error */
for (i = 0; i < size / 4; i += 2) {
if ((ps[i] != pd[i]) || (ps[i + 1] != pd[i + 1])) {
printf ("s @%p:%08x %08x\n", &ps[i], ps[i], ps[i + 1]);
printf ("d @%p:%08x %08x\n", &pd[i], pd[i], pd[i + 1]);
}
}
ret = -1;
}
} else {
/* this is a verify */
if (!(stat.pci_bits.chan0 & EOF_TX_FLAG) || /* not done */
(stat.pci_bits.chan0 & EOB_TX_FLAG)) { /* cmp error */
printf ("%08x: %08x %08x\n",
le32_to_cpu (zuma_pbb_reg->debug_63),
zuma_pbb_reg->debug_61, zuma_pbb_reg->debug_62);
ret = -1;
}
}
printf ("%s cmd %d, %d bytes: %s!\n", test_legend[cmd], cmd, size,
(ret == 0) ? "PASSED" : "FAILED");
return 0;
}
void zuma_init_pbb (void)
{
unsigned int iobase;
pci_dev_t dev =
pci_find_device (VENDOR_ID_ZUMA, DEVICE_ID_ZUMA_PBB, 0);
if (dev == -1) {
printf ("no zuma pbb\n");
return;
}
pci_read_config_dword (dev, PCI_BASE_ADDRESS_0, &iobase);
iobase &= PCI_BASE_ADDRESS_MEM_MASK;
zuma_pbb_reg = (PBB_DMA_REG_MAP *)iobase;
if (!zuma_pbb_reg) {
printf ("zuma pbb bar none! (hah hah, get it?)\n");
return;
}
zuma_pbb_reg->int_mask.word = 0;
printf ("pbb @ %p v%d.%d, timestamp %08x\n", zuma_pbb_reg,
zuma_pbb_reg->version.pci_bits.rev_major,
zuma_pbb_reg->version.pci_bits.rev_minor,
zuma_pbb_reg->timestamp);
}
#if defined(CONFIG_CMD_BSP)
static int last_cmd = 4; /* write increment */
static int last_size = 64;
int
do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
zuma_init_pbb ();
return 0;
}
int
do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
if (argc > 1) {
last_cmd = simple_strtoul (argv[1], NULL, 10);
}
if (argc > 2) {
last_size = simple_strtoul (argv[2], NULL, 10);
}
zuma_test_dma (last_cmd, last_size);
return 0;
}
int
do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
zuma_mbox_init ();
return 0;
}
U_BOOT_CMD(
zinit, 1, 0, do_zuma_init_pbb,
"init zuma pbb",
"\n"
);
U_BOOT_CMD(
zdtest, 3, 1, do_zuma_test_dma,
"run dma test",
"[cmd [count]]\n"
" - run dma cmd (w=0,v=1,cp=2,cmp=3,wi=4,vi=5), count bytes"
);
U_BOOT_CMD(
zminit, 1, 0, do_zuma_init_mbox,
"init zuma mbox",
"\n"
);
#endif
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