mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-23 02:18:51 +09:00
188 lines
4.6 KiB
C
188 lines
4.6 KiB
C
#include <common.h>
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#include <galileo/pci.h>
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#include <net.h>
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#include <pci.h>
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#include "zuma_pbb.h"
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#include "zuma_pbb_mbox.h"
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struct _zuma_mbox_dev zuma_mbox_dev;
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static int zuma_mbox_write(struct _zuma_mbox_dev *dev, unsigned int data)
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{
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unsigned int status, count = 0, i;
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status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
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while((status & OUT_PENDING) && count < 1000) {
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count++;
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for(i=0;i<1000;i++);
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status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
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}
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if(count < 1000) {
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/* if SET it means msg pending */
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/* printf("mbox real write %08x\n",data); */
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dev->sip->mbox_out = cpu_to_le32(data);
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return 4;
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}
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printf("mbox tx timeout\n");
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return 0;
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}
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static int zuma_mbox_read(struct _zuma_mbox_dev *dev, unsigned int *data)
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{
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unsigned int status, count = 0, i;
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status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
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while(!(status & IN_VALID) && count < 1000) {
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count++;
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for(i=0;i<1000;i++);
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status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
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}
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if(count < 1000) {
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/* if SET it means msg pending */
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*data=le32_to_cpu(dev->sip->mbox_in);
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/*printf("mbox real read %08x\n", *data); */
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return 4;
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}
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printf("mbox rx timeout\n");
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return 0;
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}
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static int zuma_mbox_do_one_mailbox(unsigned int out, unsigned int *in)
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{
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int ret;
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ret=zuma_mbox_write(&zuma_mbox_dev,out);
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/*printf("write 0x%08x (%d bytes)\n", out, ret); */
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if(ret!=4) return -1;
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ret=zuma_mbox_read(&zuma_mbox_dev,in);
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/*printf("read 0x%08x (%d bytes)\n", *in, ret); */
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if(ret!=4) return -1;
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return 0;
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}
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#define RET_IF_FAILED(x) if ((x) == -1) return -1
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static int zuma_mbox_do_all_mailbox(void)
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{
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unsigned int data_in;
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unsigned short sdata_in;
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_START, &data_in));
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACL, &data_in));
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memcpy(zuma_acc_mac+2,&data_in,4);
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACH, &data_in));
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sdata_in=data_in&0xffff;
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memcpy(zuma_acc_mac,&sdata_in,2);
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_IP, &data_in));
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zuma_ip=data_in;
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_SLOT, &data_in));
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zuma_slot_bac=data_in>>3;
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_BAUD, &data_in));
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zuma_console_baud = data_in & 0xffff;
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zuma_debug_baud = data_in >> 16;
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_ENG_PRV_MACL, &data_in));
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memcpy(zuma_prv_mac+2,&data_in,4);
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_ENG_PRV_MACH, &data_in));
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sdata_in=data_in&0xffff;
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memcpy(zuma_prv_mac,&sdata_in,2);
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RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_DONE, &data_in));
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return 0;
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}
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static void
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zuma_mbox_dump(void)
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{
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printf("ACC MAC=%04x%08x\n",*(unsigned short *)(&zuma_acc_mac),*(unsigned int *)((char *)&zuma_acc_mac+2));
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printf("PRV MAC=%04x%08x\n",*(unsigned short *)(&zuma_prv_mac),*(unsigned int *)((char *)&zuma_prv_mac+2));
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printf("slot:bac=%d:%d\n",(zuma_slot_bac>>2)&0xf, zuma_slot_bac & 0x3);
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printf("BAUD1=%d BAUD2=%d\n",zuma_console_baud,zuma_debug_baud);
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}
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static void
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zuma_mbox_setenv(void)
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{
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char *data, buf[32];
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unsigned char save = 0;
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data = getenv("baudrate");
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if(!data || (zuma_console_baud != simple_strtoul(data, NULL, 10))) {
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sprintf(buf, "%6d", zuma_console_baud);
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setenv("baudrate", buf);
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save=1;
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printf("baudrate doesn't match from mbox\n");
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}
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ip_to_string(zuma_ip, buf);
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setenv("ipaddr", buf);
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sprintf(buf,"%02x:%02x:%02x:%02x:%02x:%02x",
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zuma_prv_mac[0],
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zuma_prv_mac[1],
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zuma_prv_mac[2],
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zuma_prv_mac[3],
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zuma_prv_mac[4],
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zuma_prv_mac[5]);
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setenv("ethaddr", buf);
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sprintf(buf,"%02x",zuma_slot_bac);
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setenv("bacslot", buf);
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if(save)
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saveenv();
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}
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/**
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* zuma_mbox_init:
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*/
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int zuma_mbox_init(void)
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{
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unsigned int iobase;
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memset(&zuma_mbox_dev, 0, sizeof(struct _zuma_mbox_dev));
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zuma_mbox_dev.dev = pci_find_device(VENDOR_ID_ZUMA, DEVICE_ID_ZUMA_PBB, 0);
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if(zuma_mbox_dev.dev == -1) {
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printf("no zuma pbb\n");
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return -1;
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}
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pci_read_config_dword(zuma_mbox_dev.dev, PCI_BASE_ADDRESS_0, &iobase);
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zuma_mbox_dev.sip = (PBB_DMA_REG_MAP *) (iobase & PCI_BASE_ADDRESS_MEM_MASK);
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zuma_mbox_dev.sip->int_mask.word=0;
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printf("pbb @ %p v%d.%d, timestamp %08x\n", zuma_mbox_dev.sip,
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zuma_mbox_dev.sip->version.pci_bits.rev_major,
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zuma_mbox_dev.sip->version.pci_bits.rev_minor,
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zuma_mbox_dev.sip->timestamp);
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if (zuma_mbox_do_all_mailbox() == -1) {
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printf("mailbox failed.. no ACC?\n");
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return -1;
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}
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zuma_mbox_dump();
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zuma_mbox_setenv();
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return 0;
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}
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