--- /dev/null
+#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)
+{
+ unsigned short s;
+ unsigned int i;
+
+ memcpy(&s, &zuma_acc_mac, sizeof(s));
+ memcpy(&i, &zuma_acc_mac[2], sizeof(i));
+ printf("ACC MAC=%04x%08x\n", s, i);
+
+ memcpy(&s, &zuma_prv_mac, sizeof(s));
+ memcpy(&s, &zuma_prv_mac[2], sizeof(i));
+ printf("PRV MAC=%04x%08x\n", s, i);
+
+ 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;
+}
Code Review / kvmfornfv.git / blobdiff