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https://github.com/AsahiLinux/u-boot
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a89c33db96
Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
220 lines
5 KiB
C
220 lines
5 KiB
C
#include <common.h>
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#include <malloc.h>
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#if defined(CONFIG_CMD_BSP)
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#include <command.h>
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#endif
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#include <pci.h>
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#include <galileo/pci.h>
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#include "zuma_pbb.h"
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#undef DEBUG
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#define PAT_LO 0x00010203
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#define PAT_HI 0x04050607
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static PBB_DMA_REG_MAP *zuma_pbb_reg = NULL;
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static char test_buf1[2048];
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static char test_buf2[2048];
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void zuma_init_pbb(void);
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int zuma_mbox_init(void);
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int zuma_test_dma(int cmd, int size);
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int zuma_test_dma (int cmd, int size)
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{
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static const char *const test_legend[] = {
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"write", "verify",
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"copy", "compare",
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"write inc", "verify inc"
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};
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register int i, j;
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unsigned int p1 = ((unsigned int) test_buf1 + 0xff) & (~0xff);
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unsigned int p2 = ((unsigned int) test_buf2 + 0xff) & (~0xff);
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volatile unsigned int *ps = (unsigned int *) p1;
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volatile unsigned int *pd = (unsigned int *) p2;
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unsigned int funct, pat_lo = PAT_LO, pat_hi = PAT_HI;
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DMA_INT_STATUS stat;
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int ret = 0;
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if (!zuma_pbb_reg) {
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printf ("not initted\n");
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return -1;
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}
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if (cmd < 0 || cmd > 5) {
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printf ("inv cmd %d\n", cmd);
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return -1;
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}
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if (cmd == 2 || cmd == 3) {
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/* not implemented */
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return 0;
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}
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if (size <= 0 || size > 1024)
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size = 1024;
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size &= (~7); /* throw away bottom 3 bits */
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p1 = ((unsigned int) test_buf1 + 0xff) & (~0xff);
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p2 = ((unsigned int) test_buf2 + 0xff) & (~0xff);
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memset ((void *) p1, 0, size);
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memset ((void *) p2, 0, size);
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for (i = 0; i < size / 4; i += 2) {
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ps[i] = pat_lo;
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ps[i + 1] = pat_hi;
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if (cmd == 4 || cmd == 5) {
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unsigned char *pl = (unsigned char *) &pat_lo;
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unsigned char *ph = (unsigned char *) &pat_hi;
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for (j = 0; j < 4; j++) {
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pl[j] += 8;
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ph[j] += 8;
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}
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}
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}
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funct = (1 << 31) | (cmd << 24) | (size);
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zuma_pbb_reg->int_mask.pci_bits.chan0 =
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EOF_RX_FLAG | EOF_TX_FLAG | EOB_TX_FLAG;
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zuma_pbb_reg->debug_57 = PAT_LO; /* patl */
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zuma_pbb_reg->debug_58 = PAT_HI; /* path */
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zuma_pbb_reg->debug_54 = cpu_to_le32 (p1); /* src 0x01b0 */
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zuma_pbb_reg->debug_55 = cpu_to_le32 (p2); /* dst 0x01b8 */
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zuma_pbb_reg->debug_56 = cpu_to_le32 (funct); /* func, 0x01c0 */
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/* give DMA time to chew on things.. dont use DRAM or PCI */
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/* if you can avoid it. */
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do {
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for (i = 0; i < 1000 * 10; i++);
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} while (le32_to_cpu (zuma_pbb_reg->debug_56) & (1 << 31));
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stat.word = zuma_pbb_reg->status.word;
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zuma_pbb_reg->int_mask.word = 0;
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printf ("stat: %08x (%x)\n", stat.word, stat.pci_bits.chan0);
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printf ("func: %08x\n", le32_to_cpu (zuma_pbb_reg->debug_56));
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printf ("src @%08x: %08x %08x %08x %08x\n", p1, ps[0], ps[1], ps[2],
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ps[3]);
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printf ("dst @%08x: %08x %08x %08x %08x\n", p2, pd[0], pd[1], pd[2],
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pd[3]);
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printf ("func: %08x\n", le32_to_cpu (zuma_pbb_reg->debug_56));
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if (cmd == 0 || cmd == 4) {
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/* this is a write */
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if (!(stat.pci_bits.chan0 & EOF_RX_FLAG) || /* not done */
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(memcmp ((void *) ps, (void *) pd, size) != 0)) { /* cmp error */
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for (i = 0; i < size / 4; i += 2) {
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if ((ps[i] != pd[i]) || (ps[i + 1] != pd[i + 1])) {
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printf ("s @%p:%08x %08x\n", &ps[i], ps[i], ps[i + 1]);
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printf ("d @%p:%08x %08x\n", &pd[i], pd[i], pd[i + 1]);
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}
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}
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ret = -1;
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}
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} else {
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/* this is a verify */
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if (!(stat.pci_bits.chan0 & EOF_TX_FLAG) || /* not done */
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(stat.pci_bits.chan0 & EOB_TX_FLAG)) { /* cmp error */
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printf ("%08x: %08x %08x\n",
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le32_to_cpu (zuma_pbb_reg->debug_63),
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zuma_pbb_reg->debug_61, zuma_pbb_reg->debug_62);
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ret = -1;
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}
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}
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printf ("%s cmd %d, %d bytes: %s!\n", test_legend[cmd], cmd, size,
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(ret == 0) ? "PASSED" : "FAILED");
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return 0;
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}
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void zuma_init_pbb (void)
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{
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unsigned int iobase;
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pci_dev_t dev =
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pci_find_device (VENDOR_ID_ZUMA, DEVICE_ID_ZUMA_PBB, 0);
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if (dev == -1) {
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printf ("no zuma pbb\n");
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return;
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}
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pci_read_config_dword (dev, PCI_BASE_ADDRESS_0, &iobase);
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iobase &= PCI_BASE_ADDRESS_MEM_MASK;
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zuma_pbb_reg = (PBB_DMA_REG_MAP *)iobase;
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if (!zuma_pbb_reg) {
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printf ("zuma pbb bar none! (hah hah, get it?)\n");
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return;
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}
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zuma_pbb_reg->int_mask.word = 0;
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printf ("pbb @ %p v%d.%d, timestamp %08x\n", zuma_pbb_reg,
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zuma_pbb_reg->version.pci_bits.rev_major,
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zuma_pbb_reg->version.pci_bits.rev_minor,
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zuma_pbb_reg->timestamp);
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}
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#if defined(CONFIG_CMD_BSP)
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static int last_cmd = 4; /* write increment */
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static int last_size = 64;
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int
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do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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zuma_init_pbb ();
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return 0;
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}
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int
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do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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if (argc > 1) {
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last_cmd = simple_strtoul (argv[1], NULL, 10);
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}
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if (argc > 2) {
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last_size = simple_strtoul (argv[2], NULL, 10);
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}
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zuma_test_dma (last_cmd, last_size);
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return 0;
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}
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int
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do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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zuma_mbox_init ();
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return 0;
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}
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U_BOOT_CMD(
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zinit, 1, 0, do_zuma_init_pbb,
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"init zuma pbb",
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"\n"
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);
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U_BOOT_CMD(
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zdtest, 3, 1, do_zuma_test_dma,
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"run dma test",
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"[cmd [count]]\n"
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" - run dma cmd (w=0,v=1,cp=2,cmp=3,wi=4,vi=5), count bytes"
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);
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U_BOOT_CMD(
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zminit, 1, 0, do_zuma_init_mbox,
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"init zuma mbox",
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"\n"
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);
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#endif
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