1 files changed, 373 insertions, 0 deletions
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c
new file mode 100644
index 0000000000..9e4a121c12
--- /dev/null
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c
@@ -0,0 +1,373 @@
+/*
+ * Sonics Silicon Backplane
+ * Bus scanning
+ *
+ * Copyright (C) 2005-2007 Michael Buesch <mb@bu3sch.de>
+ * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
+ * Copyright (C) 2005 Stefano Brivio <st3@riseup.net>
+ * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ * Copyright (C) 2006 Broadcom Corporation.
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_regs.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+#include "ssb_private.h"
+
+
+const char * ssb_core_name(u16 coreid)
+{
+	switch (coreid) {
+	case SSB_DEV_CHIPCOMMON:
+		return "ChipCommon";
+	case SSB_DEV_ILINE20:
+		return "ILine 20";
+	case SSB_DEV_SDRAM:
+		return "SDRAM";
+	case SSB_DEV_PCI:
+		return "PCI";
+	case SSB_DEV_MIPS:
+		return "MIPS";
+	case SSB_DEV_ETHERNET:
+		return "Fast Ethernet";
+	case SSB_DEV_V90:
+		return "V90";
+	case SSB_DEV_USB11_HOSTDEV:
+		return "USB 1.1 Hostdev";
+	case SSB_DEV_ADSL:
+		return "ADSL";
+	case SSB_DEV_ILINE100:
+		return "ILine 100";
+	case SSB_DEV_IPSEC:
+		return "IPSEC";
+	case SSB_DEV_PCMCIA:
+		return "PCMCIA";
+	case SSB_DEV_INTERNAL_MEM:
+		return "Internal Memory";
+	case SSB_DEV_MEMC_SDRAM:
+		return "MEMC SDRAM";
+	case SSB_DEV_EXTIF:
+		return "EXTIF";
+	case SSB_DEV_80211:
+		return "IEEE 802.11";
+	case SSB_DEV_MIPS_3302:
+		return "MIPS 3302";
+	case SSB_DEV_USB11_HOST:
+		return "USB 1.1 Host";
+	case SSB_DEV_USB11_DEV:
+		return "USB 1.1 Device";
+	case SSB_DEV_USB20_HOST:
+		return "USB 2.0 Host";
+	case SSB_DEV_USB20_DEV:
+		return "USB 2.0 Device";
+	case SSB_DEV_SDIO_HOST:
+		return "SDIO Host";
+	case SSB_DEV_ROBOSWITCH:
+		return "Roboswitch";
+	case SSB_DEV_PARA_ATA:
+		return "PATA";
+	case SSB_DEV_SATA_XORDMA:
+		return "SATA XOR-DMA";
+	case SSB_DEV_ETHERNET_GBIT:
+		return "GBit Ethernet";
+	case SSB_DEV_PCIE:
+		return "PCI-E";
+	case SSB_DEV_MIMO_PHY:
+		return "MIMO PHY";
+	case SSB_DEV_SRAM_CTRLR:
+		return "SRAM Controller";
+	case SSB_DEV_MINI_MACPHY:
+		return "Mini MACPHY";
+	case SSB_DEV_ARM_1176:
+		return "ARM 1176";
+	case SSB_DEV_ARM_7TDMI:
+		return "ARM 7TDMI";
+	}
+	return "UNKNOWN";
+}
+
+static u16 pcidev_to_chipid(struct pci_dev *pci_dev)
+{
+	u16 chipid_fallback = 0;
+
+	switch (pci_dev->device) {
+	case 0x4301:
+		chipid_fallback = 0x4301;
+		break;
+	case 0x4305 ... 0x4307:
+		chipid_fallback = 0x4307;
+		break;
+	case 0x4403:
+		chipid_fallback = 0x4402;
+		break;
+	case 0x4610 ... 0x4615:
+		chipid_fallback = 0x4610;
+		break;
+	case 0x4710 ... 0x4715:
+		chipid_fallback = 0x4710;
+		break;
+	case 0x4320 ... 0x4325:
+		chipid_fallback = 0x4309;
+		break;
+	case PCI_DEVICE_ID_BCM4401:
+	case PCI_DEVICE_ID_BCM4401B0:
+	case PCI_DEVICE_ID_BCM4401B1:
+		chipid_fallback = 0x4401;
+		break;
+	default:
+		ssb_printk(KERN_ERR PFX
+			   "PCI-ID not in fallback list\n");
+	}
+
+	return chipid_fallback;
+}
+
+static u8 chipid_to_nrcores(u16 chipid)
+{
+	switch (chipid) {
+	case 0x5365:
+		return 7;
+	case 0x4306:
+		return 6;
+	case 0x4310:
+		return 8;
+	case 0x4307:
+	case 0x4301:
+		return 5;
+	case 0x4401:
+	case 0x4402:
+		return 3;
+	case 0x4710:
+	case 0x4610:
+	case 0x4704:
+		return 9;
+	default:
+		ssb_printk(KERN_ERR PFX
+			   "CHIPID not in nrcores fallback list\n");
+	}
+
+	return 1;
+}
+
+static u32 scan_read32(struct ssb_bus *bus, u8 current_coreidx,
+		       u16 offset)
+{
+	switch (bus->bustype) {
+	case SSB_BUSTYPE_SSB:
+		offset += current_coreidx * SSB_CORE_SIZE;
+		break;
+	case SSB_BUSTYPE_PCI:
+		break;
+	case SSB_BUSTYPE_PCMCIA:
+		if (offset >= 0x800) {
+			ssb_pcmcia_switch_segment(bus, 1);
+			offset -= 0x800;
+		} else
+			ssb_pcmcia_switch_segment(bus, 0);
+		break;
+	}
+	return readl(bus->mmio + offset);
+}
+
+static int scan_switchcore(struct ssb_bus *bus, u8 coreidx)
+{
+	switch (bus->bustype) {
+	case SSB_BUSTYPE_SSB:
+		break;
+	case SSB_BUSTYPE_PCI:
+		return ssb_pci_switch_coreidx(bus, coreidx);
+	case SSB_BUSTYPE_PCMCIA:
+		return ssb_pcmcia_switch_coreidx(bus, coreidx);
+	}
+	return 0;
+}
+
+void ssb_iounmap(struct ssb_bus *bus)
+{
+	switch (bus->bustype) {
+	case SSB_BUSTYPE_SSB:
+	case SSB_BUSTYPE_PCMCIA:
+		iounmap(bus->mmio);
+		break;
+	case SSB_BUSTYPE_PCI:
+		pci_iounmap(bus->host_pci, bus->mmio);
+		break;
+	}
+	bus->mmio = NULL;
+	bus->mapped_device = NULL;
+}
+
+static void __iomem * ssb_ioremap(struct ssb_bus *bus,
+				  unsigned long baseaddr)
+{
+	void __iomem *mmio = NULL;
+
+	switch (bus->bustype) {
+	case SSB_BUSTYPE_SSB:
+		/* Only map the first core for now. */
+		/* fallthrough... */
+	case SSB_BUSTYPE_PCMCIA:
+		mmio = ioremap(baseaddr, SSB_CORE_SIZE);
+		break;
+	case SSB_BUSTYPE_PCI:
+		mmio = pci_iomap(bus->host_pci, 0, ~0UL);
+		break;
+	}
+
+	return mmio;
+}
+
+int ssb_bus_scan(struct ssb_bus *bus,
+		 unsigned long baseaddr)
+{
+	int err = -ENOMEM;
+	void __iomem *mmio;
+	u32 idhi, cc, rev, tmp;
+	int i;
+	struct ssb_device *dev;
+
+	mmio = ssb_ioremap(bus, baseaddr);
+	if (!mmio)
+		goto out;
+	bus->mmio = mmio;
+
+	err = scan_switchcore(bus, 0); /* Switch to first core */
+	if (err)
+		goto err_unmap;
+
+	idhi = scan_read32(bus, 0, SSB_IDHIGH);
+	cc = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
+	rev = (idhi & SSB_IDHIGH_RCLO);
+	rev |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT;
+
+	bus->nr_devices = 0;
+	if (cc == SSB_DEV_CHIPCOMMON) {
+		tmp = scan_read32(bus, 0, SSB_CHIPCO_CHIPID);
+
+		bus->chip_id = (tmp & SSB_CHIPCO_IDMASK);
+		bus->chip_rev = (tmp & SSB_CHIPCO_REVMASK) >>
+				SSB_CHIPCO_REVSHIFT;
+		bus->chip_package = (tmp & SSB_CHIPCO_PACKMASK) >>
+				    SSB_CHIPCO_PACKSHIFT;
+		if (rev >= 4) {
+			bus->nr_devices = (tmp & SSB_CHIPCO_NRCORESMASK) >>
+					  SSB_CHIPCO_NRCORESSHIFT;
+		}
+		tmp = scan_read32(bus, 0, SSB_CHIPCO_CAP);
+		bus->chipco.capabilities = tmp;
+	} else {
+		if (bus->bustype == SSB_BUSTYPE_PCI) {
+			bus->chip_id = pcidev_to_chipid(bus->host_pci);
+			pci_read_config_word(bus->host_pci, PCI_REVISION_ID,
+					     &bus->chip_rev);
+			bus->chip_package = 0;
+		} else {
+			bus->chip_id = 0x4710;
+			bus->chip_rev = 0;
+			bus->chip_package = 0;
+		}
+	}
+	if (!bus->nr_devices)
+		bus->nr_devices = chipid_to_nrcores(bus->chip_id);
+	if (bus->nr_devices > ARRAY_SIZE(bus->devices)) {
+		ssb_printk(KERN_ERR PFX
+			   "More than %d ssb cores found (%d)\n",
+			   SSB_MAX_NR_CORES, bus->nr_devices);
+		goto err_unmap;
+	}
+	if (bus->bustype == SSB_BUSTYPE_SSB) {
+		/* Now that we know the number of cores,
+		 * remap the whole IO space for all cores.
+		 */
+		err = -ENOMEM;
+		iounmap(mmio);
+		mmio = ioremap(baseaddr, SSB_CORE_SIZE * bus->nr_devices);
+		if (!mmio)
+			goto out;
+		bus->mmio = mmio;
+	}
+
+	/* Fetch basic information about each core/device */
+	for (i = 0; i < bus->nr_devices; i++) {
+		err = scan_switchcore(bus, i);
+		if (err)
+			goto err_unmap;
+		dev = &(bus->devices[i]);
+
+		idhi = scan_read32(bus, i, SSB_IDHIGH);
+		dev->id.coreid = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
+		dev->id.revision = (idhi & SSB_IDHIGH_RCLO);
+		dev->id.revision |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT;
+		dev->id.vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT;
+		dev->core_index = i;
+		dev->bus = bus;
+		if ((dev->bus->bustype == SSB_BUSTYPE_PCI) && (bus->host_pci))
+			dev->irq = bus->host_pci->irq;
+
+		ssb_dprintk(KERN_INFO PFX
+			    "Core %d found: %s "
+			    "(cc 0x%03X, rev 0x%02X, vendor 0x%04X)\n",
+			    i, ssb_core_name(dev->id.coreid),
+			    dev->id.coreid, dev->id.revision, dev->id.vendor);
+
+		dev->dev.bus = &ssb_bustype;
+		snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
+			 "ssb%02x:%02x", bus->busnumber, i);
+
+		switch (dev->id.coreid) {
+		case SSB_DEV_EXTIF:
+#ifdef CONFIG_BCM947XX
+			if (bus->extif.dev) {
+				ssb_printk(KERN_WARNING PFX
+					   "WARNING: Multiple EXTIFs found\n");
+				break;
+			}
+			bus->extif.dev = dev;
+#endif /* CONFIG_SSB_DRIVER_EXTIF */
+			break;
+		case SSB_DEV_CHIPCOMMON:
+			if (bus->chipco.dev) {
+				ssb_printk(KERN_WARNING PFX
+					   "WARNING: Multiple ChipCommon found\n");
+				break;
+			}
+			bus->chipco.dev = dev;
+			break;
+		case SSB_DEV_MIPS:
+		case SSB_DEV_MIPS_3302:
+#ifdef CONFIG_BCM947XX
+			if (bus->mipscore.dev) {
+				ssb_printk(KERN_WARNING PFX
+					   "WARNING: Multiple MIPS cores found\n");
+				break;
+			}
+			bus->mipscore.dev = dev;
+#endif /* CONFIG_BCM947XX */
+			break;
+		case SSB_DEV_PCI:
+		case SSB_DEV_PCIE:
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+			if (bus->pcicore.dev) {
+				ssb_printk(KERN_WARNING PFX
+					   "WARNING: Multiple PCI(E) cores found\n");
+				break;
+			}
+			bus->pcicore.dev = dev;
+#endif /* CONFIG_SSB_DRIVER_PCICORE */
+			break;
+		default:
+			break;
+		}
+	}
+	err = 0;
+out:
+	return err;
+err_unmap:
+	ssb_iounmap(bus);
+	goto out;
+}