#include <common.h> #include <malloc.h> #if (CONFIG_COMMANDS & CFG_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); zuma_pbb_reg = (PBB_DMA_REG_MAP *) (iobase & PCI_BASE_ADDRESS_MEM_MASK); 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 (CONFIG_COMMANDS & CFG_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, "zinit - init zuma pbb\n", "\n" " - init zuma pbb\n" ); U_BOOT_CMD( zdtest, 3, 1, do_zuma_test_dma, "zdtest - run dma test\n", "[cmd [count]]\n" " - run dma cmd (w=0,v=1,cp=2,cmp=3,wi=4,vi=5), count bytes\n" ); U_BOOT_CMD( zminit, 1, 0, do_zuma_init_mbox, "zminit - init zuma mbox\n", "\n" " - init zuma mbox\n" ); #endif /* CFG_CMD_BSP */