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authorwdenk <wdenk>2002-11-03 00:38:21 +0000
committerwdenk <wdenk>2002-11-03 00:38:21 +0000
commitfe8c2806cdba70479e351299881a395dc2be7785 (patch)
treea1e8b98a1838cba6e6f5c765d9d85339257c45f5 /board/evb64260/zuma_pbb_mbox.c
parentf9087a3213cc245cf9b90436475b5af822bd7579 (diff)
downloadu-boot-linaro-stable-fe8c2806cdba70479e351299881a395dc2be7785.tar.gz
Initial revision
Diffstat (limited to 'board/evb64260/zuma_pbb_mbox.c')
-rw-r--r--board/evb64260/zuma_pbb_mbox.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/board/evb64260/zuma_pbb_mbox.c b/board/evb64260/zuma_pbb_mbox.c
new file mode 100644
index 000000000..5131339a6
--- /dev/null
+++ b/board/evb64260/zuma_pbb_mbox.c
@@ -0,0 +1,187 @@
+#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)
+{
+ unsigned 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);
+
+ zuma_mbox_dev.sip = (PBB_DMA_REG_MAP *) (iobase & PCI_BASE_ADDRESS_MEM_MASK);
+
+ 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;
+}