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#include <common.h>
#include <galileo/pci.h>
#include <net.h>
#include <pci.h>
#include "zuma_pbb.h"
#include "zuma_pbb_mbox.h"
struct _zuma_mbox_dev zuma_mbox_dev;
static int zuma_mbox_write(struct _zuma_mbox_dev *dev, unsigned int data)
{
unsigned int status, count = 0, i;
status = (volatile int) le32_to_cpu(dev->sip->mbox_status);
while ((status & OUT_PENDING) && count < 1000) {
count++;
for (i = 0; i < 1000; i++)
;
status = (volatile int) le32_to_cpu(dev->sip->mbox_status);
}
if (count < 1000) {
/* if SET it means msg pending */
/* printf("mbox real write %08x\n",data); */
dev->sip->mbox_out = cpu_to_le32(data);
return 4;
}
printf("mbox tx timeout\n");
return 0;
}
static int zuma_mbox_read(struct _zuma_mbox_dev *dev, unsigned int *data)
{
unsigned int status, count = 0, i;
status = (volatile int) le32_to_cpu(dev->sip->mbox_status);
while (!(status & IN_VALID) && count < 1000) {
count++;
for (i = 0; i < 1000; i++)
;
status = (volatile int) le32_to_cpu(dev->sip->mbox_status);
}
if (count < 1000) {
/* if SET it means msg pending */
*data = le32_to_cpu(dev->sip->mbox_in);
/*printf("mbox real read %08x\n", *data); */
return 4;
}
printf("mbox rx timeout\n");
return 0;
}
static int zuma_mbox_do_one_mailbox(unsigned int out, unsigned int *in)
{
int ret;
ret = zuma_mbox_write(&zuma_mbox_dev, out);
/*printf("write 0x%08x (%d bytes)\n", out, ret); */
if (ret != 4)
return -1;
ret = zuma_mbox_read(&zuma_mbox_dev, in);
/*printf("read 0x%08x (%d bytes)\n", *in, ret); */
if (ret != 4)
return -1;
return 0;
}
#define RET_IF_FAILED(x) if ((x) == -1) return -1
static int zuma_mbox_do_all_mailbox(void)
{
unsigned int data_in;
unsigned short sdata_in;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_START, &data_in));
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACL, &data_in));
memcpy(zuma_acc_mac + 2, &data_in, 4);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACH, &data_in));
sdata_in = data_in & 0xffff;
memcpy(zuma_acc_mac, &sdata_in, 2);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_IP, &data_in));
zuma_ip = data_in;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_SLOT, &data_in));
zuma_slot_bac = data_in >> 3;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_BAUD, &data_in));
zuma_console_baud = data_in & 0xffff;
zuma_debug_baud = data_in >> 16;
RET_IF_FAILED(zuma_mbox_do_one_mailbox
(ZUMA_MBOXMSG_ENG_PRV_MACL, &data_in));
memcpy(zuma_prv_mac + 2, &data_in, 4);
RET_IF_FAILED(zuma_mbox_do_one_mailbox
(ZUMA_MBOXMSG_ENG_PRV_MACH, &data_in));
sdata_in = data_in & 0xffff;
memcpy(zuma_prv_mac, &sdata_in, 2);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_DONE, &data_in));
return 0;
}
static void zuma_mbox_dump(void)
{
printf("ACC MAC=%04x%08x\n", *(unsigned short *) (&zuma_acc_mac),
*(unsigned int *) ((char *) &zuma_acc_mac + 2));
printf("PRV MAC=%04x%08x\n", *(unsigned short *) (&zuma_prv_mac),
*(unsigned int *) ((char *) &zuma_prv_mac + 2));
printf("slot:bac=%d:%d\n", (zuma_slot_bac >> 2) & 0xf,
zuma_slot_bac & 0x3);
printf("BAUD1=%d BAUD2=%d\n", zuma_console_baud, zuma_debug_baud);
}
static void zuma_mbox_setenv(void)
{
char *data, buf[32];
unsigned char save = 0;
data = getenv("baudrate");
if (!data || (zuma_console_baud != simple_strtoul(data, NULL, 10))) {
sprintf(buf, "%6d", zuma_console_baud);
setenv("baudrate", buf);
save = 1;
printf("baudrate doesn't match from mbox\n");
}
ip_to_string(zuma_ip, buf);
setenv("ipaddr", buf);
sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
zuma_prv_mac[0],
zuma_prv_mac[1],
zuma_prv_mac[2],
zuma_prv_mac[3], zuma_prv_mac[4], zuma_prv_mac[5]);
setenv("ethaddr", buf);
sprintf(buf, "%02x", zuma_slot_bac);
setenv("bacslot", buf);
if (save)
saveenv();
}
/**
* zuma_mbox_init:
*/
int zuma_mbox_init(void)
{
unsigned int iobase;
memset(&zuma_mbox_dev, 0, sizeof(struct _zuma_mbox_dev));
zuma_mbox_dev.dev =
pci_find_device(VENDOR_ID_ZUMA, DEVICE_ID_ZUMA_PBB, 0);
if (zuma_mbox_dev.dev == -1) {
printf("no zuma pbb\n");
return -1;
}
pci_read_config_dword(zuma_mbox_dev.dev, PCI_BASE_ADDRESS_0, &iobase);
iobase &= PCI_BASE_ADDRESS_MEM_MASK;
zuma_mbox_dev.sip = (PBB_DMA_REG_MAP *) iobase;
zuma_mbox_dev.sip->int_mask.word = 0;
printf("pbb @ %p v%d.%d, timestamp %08x\n", zuma_mbox_dev.sip,
zuma_mbox_dev.sip->version.pci_bits.rev_major,
zuma_mbox_dev.sip->version.pci_bits.rev_minor,
zuma_mbox_dev.sip->timestamp);
if (zuma_mbox_do_all_mailbox() == -1) {
printf("mailbox failed.. no ACC?\n");
return -1;
}
zuma_mbox_dump();
zuma_mbox_setenv();
return 0;
}
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