diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.38/025-bcma_backport.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.38/025-bcma_backport.patch | 1462 |
1 files changed, 1232 insertions, 230 deletions
diff --git a/target/linux/generic/patches-2.6.38/025-bcma_backport.patch b/target/linux/generic/patches-2.6.38/025-bcma_backport.patch index 60fefaf452..db2292ad96 100644 --- a/target/linux/generic/patches-2.6.38/025-bcma_backport.patch +++ b/target/linux/generic/patches-2.6.38/025-bcma_backport.patch @@ -103,7 +103,7 @@ + +config BCMA_DRIVER_PCI_HOSTMODE + bool "Driver for PCI core working in hostmode" -+ depends on BCMA && MIPS ++ depends on BCMA && MIPS && BCMA_HOST_PCI + help + PCI core hostmode operation (external PCI bus). + @@ -172,7 +172,7 @@ +- Create kernel Documentation (use info from README) --- /dev/null +++ b/drivers/bcma/bcma_private.h -@@ -0,0 +1,54 @@ +@@ -0,0 +1,59 @@ +#ifndef LINUX_BCMA_PRIVATE_H_ +#define LINUX_BCMA_PRIVATE_H_ + @@ -188,12 +188,13 @@ +struct bcma_bus; + +/* main.c */ -+int bcma_bus_register(struct bcma_bus *bus); ++int __devinit bcma_bus_register(struct bcma_bus *bus); +void bcma_bus_unregister(struct bcma_bus *bus); +int __init bcma_bus_early_register(struct bcma_bus *bus, + struct bcma_device *core_cc, + struct bcma_device *core_mips); +#ifdef CONFIG_PM ++int bcma_bus_suspend(struct bcma_bus *bus); +int bcma_bus_resume(struct bcma_bus *bus); +#endif + @@ -222,8 +223,12 @@ +extern void __exit bcma_host_pci_exit(void); +#endif /* CONFIG_BCMA_HOST_PCI */ + ++/* driver_pci.c */ ++u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address); ++ +#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE -+void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc); ++bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc); ++void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc); +#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ + +#endif @@ -517,7 +522,7 @@ +#endif /* CONFIG_BCMA_DRIVER_MIPS */ --- /dev/null +++ b/drivers/bcma/driver_chipcommon_pmu.c -@@ -0,0 +1,309 @@ +@@ -0,0 +1,310 @@ +/* + * Broadcom specific AMBA + * ChipCommon Power Management Unit driver @@ -599,6 +604,7 @@ + min_msk = 0x200D; + max_msk = 0xFFFF; + break; ++ case 0x4331: + case 43224: + case 43225: + break; @@ -829,13 +835,14 @@ +} --- /dev/null +++ b/drivers/bcma/driver_pci.c -@@ -0,0 +1,237 @@ +@@ -0,0 +1,225 @@ +/* + * Broadcom specific AMBA + * PCI Core + * -+ * Copyright 2005, Broadcom Corporation ++ * Copyright 2005, 2011, Broadcom Corporation + * Copyright 2006, 2007, Michael Buesch <m@bues.ch> ++ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> + * + * Licensed under the GNU/GPL. See COPYING for details. + */ @@ -847,40 +854,41 @@ + * R/W ops. + **************************************************/ + -+static u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address) ++u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address) +{ -+ pcicore_write32(pc, 0x130, address); -+ pcicore_read32(pc, 0x130); -+ return pcicore_read32(pc, 0x134); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); ++ return pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_DATA); +} + +#if 0 +static void bcma_pcie_write(struct bcma_drv_pci *pc, u32 address, u32 data) +{ -+ pcicore_write32(pc, 0x130, address); -+ pcicore_read32(pc, 0x130); -+ pcicore_write32(pc, 0x134, data); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); ++ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_DATA, data); +} +#endif + +static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy) +{ -+ const u16 mdio_control = 0x128; -+ const u16 mdio_data = 0x12C; + u32 v; + int i; + -+ v = (1 << 30); /* Start of Transaction */ -+ v |= (1 << 28); /* Write Transaction */ -+ v |= (1 << 17); /* Turnaround */ -+ v |= (0x1F << 18); ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_WRITE; ++ v |= (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (BCMA_CORE_PCI_MDIODATA_BLK_ADDR << ++ BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ v |= BCMA_CORE_PCI_MDIODATA_TA; + v |= (phy << 4); -+ pcicore_write32(pc, mdio_data, v); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + + udelay(10); + for (i = 0; i < 200; i++) { -+ v = pcicore_read32(pc, mdio_control); -+ if (v & 0x100 /* Trans complete */) ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) + break; + msleep(1); + } @@ -888,79 +896,84 @@ + +static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address) +{ -+ const u16 mdio_control = 0x128; -+ const u16 mdio_data = 0x12C; + int max_retries = 10; + u16 ret = 0; + u32 v; + int i; + -+ v = 0x80; /* Enable Preamble Sequence */ -+ v |= 0x2; /* MDIO Clock Divisor */ -+ pcicore_write32(pc, mdio_control, v); ++ /* enable mdio access to SERDES */ ++ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; ++ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); + + if (pc->core->id.rev >= 10) { + max_retries = 200; + bcma_pcie_mdio_set_phy(pc, device); ++ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ } else { ++ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); + } + -+ v = (1 << 30); /* Start of Transaction */ -+ v |= (1 << 29); /* Read Transaction */ -+ v |= (1 << 17); /* Turnaround */ -+ if (pc->core->id.rev < 10) -+ v |= (u32)device << 22; -+ v |= (u32)address << 18; -+ pcicore_write32(pc, mdio_data, v); ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_READ; ++ v |= BCMA_CORE_PCI_MDIODATA_TA; ++ ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + /* Wait for the device to complete the transaction */ + udelay(10); + for (i = 0; i < max_retries; i++) { -+ v = pcicore_read32(pc, mdio_control); -+ if (v & 0x100 /* Trans complete */) { ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) { + udelay(10); -+ ret = pcicore_read32(pc, mdio_data); ++ ret = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_DATA); + break; + } + msleep(1); + } -+ pcicore_write32(pc, mdio_control, 0); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); + return ret; +} + +static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device, + u8 address, u16 data) +{ -+ const u16 mdio_control = 0x128; -+ const u16 mdio_data = 0x12C; + int max_retries = 10; + u32 v; + int i; + -+ v = 0x80; /* Enable Preamble Sequence */ -+ v |= 0x2; /* MDIO Clock Divisor */ -+ pcicore_write32(pc, mdio_control, v); ++ /* enable mdio access to SERDES */ ++ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; ++ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); + + if (pc->core->id.rev >= 10) { + max_retries = 200; + bcma_pcie_mdio_set_phy(pc, device); ++ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << ++ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); ++ } else { ++ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); ++ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); + } + -+ v = (1 << 30); /* Start of Transaction */ -+ v |= (1 << 28); /* Write Transaction */ -+ v |= (1 << 17); /* Turnaround */ -+ if (pc->core->id.rev < 10) -+ v |= (u32)device << 22; -+ v |= (u32)address << 18; ++ v = BCMA_CORE_PCI_MDIODATA_START; ++ v |= BCMA_CORE_PCI_MDIODATA_WRITE; ++ v |= BCMA_CORE_PCI_MDIODATA_TA; + v |= data; -+ pcicore_write32(pc, mdio_data, v); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); + /* Wait for the device to complete the transaction */ + udelay(10); + for (i = 0; i < max_retries; i++) { -+ v = pcicore_read32(pc, mdio_control); -+ if (v & 0x100 /* Trans complete */) ++ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); ++ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) + break; + msleep(1); + } -+ pcicore_write32(pc, mdio_control, 0); ++ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); +} + +/************************************************** @@ -969,72 +982,53 @@ + +static u8 bcma_pcicore_polarity_workaround(struct bcma_drv_pci *pc) +{ -+ return (bcma_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80; ++ u32 tmp; ++ ++ tmp = bcma_pcie_read(pc, BCMA_CORE_PCI_PLP_STATUSREG); ++ if (tmp & BCMA_CORE_PCI_PLP_POLARITYINV_STAT) ++ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE | ++ BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY; ++ else ++ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE; +} + +static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc) +{ -+ const u8 serdes_pll_device = 0x1D; -+ const u8 serdes_rx_device = 0x1F; + u16 tmp; + -+ bcma_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */, -+ bcma_pcicore_polarity_workaround(pc)); -+ tmp = bcma_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control */); -+ if (tmp & 0x4000) -+ bcma_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000); ++ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_RX, ++ BCMA_CORE_PCI_SERDES_RX_CTRL, ++ bcma_pcicore_polarity_workaround(pc)); ++ tmp = bcma_pcie_mdio_read(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, ++ BCMA_CORE_PCI_SERDES_PLL_CTRL); ++ if (tmp & BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN) ++ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, ++ BCMA_CORE_PCI_SERDES_PLL_CTRL, ++ tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN); +} + +/************************************************** + * Init. + **************************************************/ + -+static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc) ++static void __devinit bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc) +{ + bcma_pcicore_serdes_workaround(pc); +} + -+static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc) -+{ -+ struct bcma_bus *bus = pc->core->bus; -+ u16 chipid_top; -+ -+ chipid_top = (bus->chipinfo.id & 0xFF00); -+ if (chipid_top != 0x4700 && -+ chipid_top != 0x5300) -+ return false; -+ -+#ifdef CONFIG_SSB_DRIVER_PCICORE -+ if (bus->sprom.boardflags_lo & SSB_BFL_NOPCI) -+ return false; -+#endif /* CONFIG_SSB_DRIVER_PCICORE */ -+ -+#if 0 -+ /* TODO: on BCMA we use address from EROM instead of magic formula */ -+ u32 tmp; -+ return !mips_busprobe32(tmp, (bus->mmio + -+ (pc->core->core_index * BCMA_CORE_SIZE))); -+#endif -+ -+ return true; -+} -+ -+void bcma_core_pci_init(struct bcma_drv_pci *pc) ++void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc) +{ + if (pc->setup_done) + return; + -+ if (bcma_core_pci_is_in_hostmode(pc)) { +#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE ++ pc->hostmode = bcma_core_pci_is_in_hostmode(pc); ++ if (pc->hostmode) + bcma_core_pci_hostmode_init(pc); -+#else -+ pr_err("Driver compiled without support for hostmode PCI\n"); +#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ -+ } else { -+ bcma_core_pci_clientmode_init(pc); -+ } + -+ pc->setup_done = true; ++ if (!pc->hostmode) ++ bcma_core_pci_clientmode_init(pc); +} + +int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core, @@ -1069,7 +1063,7 @@ +EXPORT_SYMBOL_GPL(bcma_core_pci_irq_ctl); --- /dev/null +++ b/drivers/bcma/host_pci.c -@@ -0,0 +1,299 @@ +@@ -0,0 +1,292 @@ +/* + * Broadcom specific AMBA + * PCI Host @@ -1226,8 +1220,8 @@ + .awrite32 = bcma_host_pci_awrite32, +}; + -+static int bcma_host_pci_probe(struct pci_dev *dev, -+ const struct pci_device_id *id) ++static int __devinit bcma_host_pci_probe(struct pci_dev *dev, ++ const struct pci_device_id *id) +{ + struct bcma_bus *bus; + int err = -ENOMEM; @@ -1307,38 +1301,32 @@ +} + +#ifdef CONFIG_PM -+static int bcma_host_pci_suspend(struct pci_dev *dev, pm_message_t state) ++static int bcma_host_pci_suspend(struct device *dev) +{ -+ /* Host specific */ -+ pci_save_state(dev); -+ pci_disable_device(dev); -+ pci_set_power_state(dev, pci_choose_state(dev, state)); ++ struct pci_dev *pdev = to_pci_dev(dev); ++ struct bcma_bus *bus = pci_get_drvdata(pdev); + -+ return 0; ++ bus->mapped_core = NULL; ++ ++ return bcma_bus_suspend(bus); +} + -+static int bcma_host_pci_resume(struct pci_dev *dev) ++static int bcma_host_pci_resume(struct device *dev) +{ -+ struct bcma_bus *bus = pci_get_drvdata(dev); -+ int err; ++ struct pci_dev *pdev = to_pci_dev(dev); ++ struct bcma_bus *bus = pci_get_drvdata(pdev); + -+ /* Host specific */ -+ pci_set_power_state(dev, 0); -+ err = pci_enable_device(dev); -+ if (err) -+ return err; -+ pci_restore_state(dev); ++ return bcma_bus_resume(bus); ++} + -+ /* Bus specific */ -+ err = bcma_bus_resume(bus); -+ if (err) -+ return err; ++static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bcma_host_pci_suspend, ++ bcma_host_pci_resume); ++#define BCMA_PM_OPS (&bcma_pm_ops) + -+ return 0; -+} +#else /* CONFIG_PM */ -+# define bcma_host_pci_suspend NULL -+# define bcma_host_pci_resume NULL ++ ++#define BCMA_PM_OPS NULL ++ +#endif /* CONFIG_PM */ + +static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = { @@ -1356,8 +1344,7 @@ + .id_table = bcma_pci_bridge_tbl, + .probe = bcma_host_pci_probe, + .remove = bcma_host_pci_remove, -+ .suspend = bcma_host_pci_suspend, -+ .resume = bcma_host_pci_resume, ++ .driver.pm = BCMA_PM_OPS, +}; + +int __init bcma_host_pci_init(void) @@ -1371,7 +1358,7 @@ +} --- /dev/null +++ b/drivers/bcma/main.c -@@ -0,0 +1,354 @@ +@@ -0,0 +1,387 @@ +/* + * Broadcom specific AMBA + * Bus subsystem @@ -1387,6 +1374,12 @@ +MODULE_DESCRIPTION("Broadcom's specific AMBA driver"); +MODULE_LICENSE("GPL"); + ++/* contains the number the next bus should get. */ ++static unsigned int bcma_bus_next_num = 0; ++ ++/* bcma_buses_mutex locks the bcma_bus_next_num */ ++static DEFINE_MUTEX(bcma_buses_mutex); ++ +static int bcma_bus_match(struct device *dev, struct device_driver *drv); +static int bcma_device_probe(struct device *dev); +static int bcma_device_remove(struct device *dev); @@ -1429,7 +1422,7 @@ + .dev_attrs = bcma_device_attrs, +}; + -+static struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid) ++struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid) +{ + struct bcma_device *core; + @@ -1439,6 +1432,7 @@ + } + return NULL; +} ++EXPORT_SYMBOL_GPL(bcma_find_core); + +static void bcma_release_core_dev(struct device *dev) +{ @@ -1467,7 +1461,7 @@ + + core->dev.release = bcma_release_core_dev; + core->dev.bus = &bcma_bus_type; -+ dev_set_name(&core->dev, "bcma%d:%d", 0/*bus->num*/, dev_id); ++ dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id); + + switch (bus->hosttype) { + case BCMA_HOSTTYPE_PCI: @@ -1506,11 +1500,15 @@ + } +} + -+int bcma_bus_register(struct bcma_bus *bus) ++int __devinit bcma_bus_register(struct bcma_bus *bus) +{ + int err; + struct bcma_device *core; + ++ mutex_lock(&bcma_buses_mutex); ++ bus->num = bcma_bus_next_num++; ++ mutex_unlock(&bcma_buses_mutex); ++ + /* Scan for devices (cores) */ + err = bcma_bus_scan(bus); + if (err) { @@ -1543,10 +1541,8 @@ + err = bcma_sprom_get(bus); + if (err == -ENOENT) { + pr_err("No SPROM available\n"); -+ } else if (err) { ++ } else if (err) + pr_err("Failed to get SPROM: %d\n", err); -+ return -ENOENT; -+ } + + /* Register found cores */ + bcma_register_cores(bus); @@ -1615,6 +1611,21 @@ +} + +#ifdef CONFIG_PM ++int bcma_bus_suspend(struct bcma_bus *bus) ++{ ++ struct bcma_device *core; ++ ++ list_for_each_entry(core, &bus->cores, list) { ++ struct device_driver *drv = core->dev.driver; ++ if (drv) { ++ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); ++ if (adrv->suspend) ++ adrv->suspend(core); ++ } ++ } ++ return 0; ++} ++ +int bcma_bus_resume(struct bcma_bus *bus) +{ + struct bcma_device *core; @@ -1626,6 +1637,15 @@ + bcma_core_chipcommon_init(&bus->drv_cc); + } + ++ list_for_each_entry(core, &bus->cores, list) { ++ struct device_driver *drv = core->dev.driver; ++ if (drv) { ++ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); ++ if (adrv->resume) ++ adrv->resume(core); ++ } ++ } ++ + return 0; +} +#endif @@ -1728,7 +1748,7 @@ +module_exit(bcma_modexit) --- /dev/null +++ b/drivers/bcma/scan.c -@@ -0,0 +1,486 @@ +@@ -0,0 +1,507 @@ +/* + * Broadcom specific AMBA + * Bus scanning @@ -1943,6 +1963,17 @@ + return NULL; +} + ++static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid) ++{ ++ struct bcma_device *core; ++ ++ list_for_each_entry_reverse(core, &bus->cores, list) { ++ if (core->id.id == coreid) ++ return core; ++ } ++ return NULL; ++} ++ +static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, + struct bcma_device_id *match, int core_num, + struct bcma_device *core) @@ -2084,6 +2115,7 @@ +void bcma_init_bus(struct bcma_bus *bus) +{ + s32 tmp; ++ struct bcma_chipinfo *chipinfo = &(bus->chipinfo); + + if (bus->init_done) + return; @@ -2094,9 +2126,12 @@ + bcma_scan_switch_core(bus, BCMA_ADDR_BASE); + + tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID); -+ bus->chipinfo.id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; -+ bus->chipinfo.rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; -+ bus->chipinfo.pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; ++ chipinfo->id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; ++ chipinfo->rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; ++ chipinfo->pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; ++ pr_info("Found chip with id 0x%04X, rev 0x%02X and package 0x%02X\n", ++ chipinfo->id, chipinfo->rev, chipinfo->pkg); ++ + bus->init_done = true; +} + @@ -2123,6 +2158,7 @@ + bcma_scan_switch_core(bus, erombase); + + while (eromptr < eromend) { ++ struct bcma_device *other_core; + struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL); + if (!core) + return -ENOMEM; @@ -2130,18 +2166,23 @@ + core->bus = bus; + + err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core); -+ if (err == -ENODEV) { -+ core_num++; -+ continue; -+ } else if (err == -ENXIO) -+ continue; -+ else if (err == -ESPIPE) -+ break; -+ else if (err < 0) ++ if (err < 0) { ++ kfree(core); ++ if (err == -ENODEV) { ++ core_num++; ++ continue; ++ } else if (err == -ENXIO) { ++ continue; ++ } else if (err == -ESPIPE) { ++ break; ++ } + return err; ++ } + + core->core_index = core_num++; + bus->nr_cores++; ++ other_core = bcma_find_core_reverse(bus, core->id.id); ++ core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; + + pr_info("Core %d found: %s " + "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", @@ -2276,7 +2317,7 @@ +#endif /* BCMA_SCAN_H_ */ --- /dev/null +++ b/include/linux/bcma/bcma.h -@@ -0,0 +1,298 @@ +@@ -0,0 +1,307 @@ +#ifndef LINUX_BCMA_H_ +#define LINUX_BCMA_H_ + @@ -2415,6 +2456,7 @@ + bool dev_registered; + + u8 core_index; ++ u8 core_unit; + + u32 addr; + u32 wrap; @@ -2441,7 +2483,7 @@ + + int (*probe)(struct bcma_device *dev); + void (*remove)(struct bcma_device *dev); -+ int (*suspend)(struct bcma_device *dev, pm_message_t state); ++ int (*suspend)(struct bcma_device *dev); + int (*resume)(struct bcma_device *dev); + void (*shutdown)(struct bcma_device *dev); + @@ -2454,6 +2496,12 @@ + +extern void bcma_driver_unregister(struct bcma_driver *drv); + ++/* Set a fallback SPROM. ++ * See kdoc at the function definition for complete documentation. */ ++extern int bcma_arch_register_fallback_sprom( ++ int (*sprom_callback)(struct bcma_bus *bus, ++ struct ssb_sprom *out)); ++ +struct bcma_bus { + /* The MMIO area. */ + void __iomem *mmio; @@ -2474,6 +2522,7 @@ + struct list_head cores; + u8 nr_cores; + u8 init_done:1; ++ u8 num; + + struct bcma_drv_cc drv_cc; + struct bcma_drv_pci drv_pci; @@ -2561,6 +2610,7 @@ + bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set); +} + ++extern struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid); +extern bool bcma_core_is_enabled(struct bcma_device *core); +extern void bcma_core_disable(struct bcma_device *core, u32 flags); +extern int bcma_core_enable(struct bcma_device *core, u32 flags); @@ -2577,7 +2627,7 @@ +#endif /* LINUX_BCMA_H_ */ --- /dev/null +++ b/include/linux/bcma/bcma_driver_chipcommon.h -@@ -0,0 +1,391 @@ +@@ -0,0 +1,415 @@ +#ifndef LINUX_BCMA_DRIVER_CC_H_ +#define LINUX_BCMA_DRIVER_CC_H_ + @@ -2636,6 +2686,9 @@ +#define BCMA_CC_OTPS_HW_PROTECT 0x00000001 +#define BCMA_CC_OTPS_SW_PROTECT 0x00000002 +#define BCMA_CC_OTPS_CID_PROTECT 0x00000004 ++#define BCMA_CC_OTPS_GU_PROG_IND 0x00000F00 /* General Use programmed indication */ ++#define BCMA_CC_OTPS_GU_PROG_IND_SHIFT 8 ++#define BCMA_CC_OTPS_GU_PROG_HW 0x00000100 /* HW region programmed */ +#define BCMA_CC_OTPC 0x0014 /* OTP control */ +#define BCMA_CC_OTPC_RECWAIT 0xFF000000 +#define BCMA_CC_OTPC_PROGWAIT 0x00FFFF00 @@ -2652,6 +2705,8 @@ +#define BCMA_CC_OTPP_READ 0x40000000 +#define BCMA_CC_OTPP_START 0x80000000 +#define BCMA_CC_OTPP_BUSY 0x80000000 ++#define BCMA_CC_OTPL 0x001C /* OTP layout */ ++#define BCMA_CC_OTPL_GURGN_OFFSET 0x00000FFF /* offset of general use region */ +#define BCMA_CC_IRQSTAT 0x0020 +#define BCMA_CC_IRQMASK 0x0024 +#define BCMA_CC_IRQ_GPIO 0x00000001 /* gpio intr */ @@ -2659,6 +2714,10 @@ +#define BCMA_CC_IRQ_WDRESET 0x80000000 /* watchdog reset occurred */ +#define BCMA_CC_CHIPCTL 0x0028 /* Rev >= 11 only */ +#define BCMA_CC_CHIPSTAT 0x002C /* Rev >= 11 only */ ++#define BCMA_CC_CHIPST_4313_SPROM_PRESENT 1 ++#define BCMA_CC_CHIPST_4313_OTP_PRESENT 2 ++#define BCMA_CC_CHIPST_4331_SPROM_PRESENT 2 ++#define BCMA_CC_CHIPST_4331_OTP_PRESENT 4 +#define BCMA_CC_JCMD 0x0030 /* Rev >= 10 only */ +#define BCMA_CC_JCMD_START 0x80000000 +#define BCMA_CC_JCMD_BUSY 0x80000000 @@ -2761,6 +2820,22 @@ +#define BCMA_CC_FLASH_CFG 0x0128 +#define BCMA_CC_FLASH_CFG_DS 0x0010 /* Data size, 0=8bit, 1=16bit */ +#define BCMA_CC_FLASH_WAITCNT 0x012C ++#define BCMA_CC_SROM_CONTROL 0x0190 ++#define BCMA_CC_SROM_CONTROL_START 0x80000000 ++#define BCMA_CC_SROM_CONTROL_BUSY 0x80000000 ++#define BCMA_CC_SROM_CONTROL_OPCODE 0x60000000 ++#define BCMA_CC_SROM_CONTROL_OP_READ 0x00000000 ++#define BCMA_CC_SROM_CONTROL_OP_WRITE 0x20000000 ++#define BCMA_CC_SROM_CONTROL_OP_WRDIS 0x40000000 ++#define BCMA_CC_SROM_CONTROL_OP_WREN 0x60000000 ++#define BCMA_CC_SROM_CONTROL_OTPSEL 0x00000010 ++#define BCMA_CC_SROM_CONTROL_LOCK 0x00000008 ++#define BCMA_CC_SROM_CONTROL_SIZE_MASK 0x00000006 ++#define BCMA_CC_SROM_CONTROL_SIZE_1K 0x00000000 ++#define BCMA_CC_SROM_CONTROL_SIZE_4K 0x00000002 ++#define BCMA_CC_SROM_CONTROL_SIZE_16K 0x00000004 ++#define BCMA_CC_SROM_CONTROL_SIZE_SHIFT 1 ++#define BCMA_CC_SROM_CONTROL_PRESENT 0x00000001 +/* 0x1E0 is defined as shared BCMA_CLKCTLST */ +#define BCMA_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */ +#define BCMA_CC_UART0_DATA 0x0300 @@ -2820,7 +2895,6 @@ +#define BCMA_CC_PLLCTL_ADDR 0x0660 +#define BCMA_CC_PLLCTL_DATA 0x0664 +#define BCMA_CC_SPROM 0x0800 /* SPROM beginning */ -+#define BCMA_CC_SPROM_PCIE6 0x0830 /* SPROM beginning on PCIe rev >= 6 */ + +/* Divider allocation in 4716/47162/5356 */ +#define BCMA_CC_PMU5_MAINPLL_CPU 1 @@ -2971,7 +3045,7 @@ +#endif /* LINUX_BCMA_DRIVER_CC_H_ */ --- /dev/null +++ b/include/linux/bcma/bcma_driver_pci.h -@@ -0,0 +1,91 @@ +@@ -0,0 +1,214 @@ +#ifndef LINUX_BCMA_DRIVER_PCI_H_ +#define LINUX_BCMA_DRIVER_PCI_H_ + @@ -3027,6 +3101,35 @@ +#define BCMA_CORE_PCI_SBTOPCI1_MASK 0xFC000000 +#define BCMA_CORE_PCI_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */ +#define BCMA_CORE_PCI_SBTOPCI2_MASK 0xC0000000 ++#define BCMA_CORE_PCI_CONFIG_ADDR 0x0120 /* pcie config space access */ ++#define BCMA_CORE_PCI_CONFIG_DATA 0x0124 /* pcie config space access */ ++#define BCMA_CORE_PCI_MDIO_CONTROL 0x0128 /* controls the mdio access */ ++#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_MASK 0x7f /* clock to be used on MDIO */ ++#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL 0x2 ++#define BCMA_CORE_PCI_MDIOCTL_PREAM_EN 0x80 /* Enable preamble sequnce */ ++#define BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE 0x100 /* Tranaction complete */ ++#define BCMA_CORE_PCI_MDIO_DATA 0x012c /* Data to the mdio access */ ++#define BCMA_CORE_PCI_MDIODATA_MASK 0x0000ffff /* data 2 bytes */ ++#define BCMA_CORE_PCI_MDIODATA_TA 0x00020000 /* Turnaround */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD 18 /* Regaddr shift (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK_OLD 0x003c0000 /* Regaddr Mask (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD 22 /* Physmedia devaddr shift (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK_OLD 0x0fc00000 /* Physmedia devaddr Mask (rev < 10) */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF 18 /* Regaddr shift */ ++#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK 0x007c0000 /* Regaddr Mask */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF 23 /* Physmedia devaddr shift */ ++#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK 0x0f800000 /* Physmedia devaddr Mask */ ++#define BCMA_CORE_PCI_MDIODATA_WRITE 0x10000000 /* write Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_READ 0x20000000 /* Read Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_START 0x40000000 /* start of Transaction */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_ADDR 0x0 /* dev address for serdes */ ++#define BCMA_CORE_PCI_MDIODATA_BLK_ADDR 0x1F /* blk address for serdes */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_PLL 0x1d /* SERDES PLL Dev */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_TX 0x1e /* SERDES TX Dev */ ++#define BCMA_CORE_PCI_MDIODATA_DEV_RX 0x1f /* SERDES RX Dev */ ++#define BCMA_CORE_PCI_PCIEIND_ADDR 0x0130 /* indirect access to the internal register */ ++#define BCMA_CORE_PCI_PCIEIND_DATA 0x0134 /* Data to/from the internal regsiter */ ++#define BCMA_CORE_PCI_CLKREQENCTRL 0x0138 /* >= rev 6, Clkreq rdma control */ +#define BCMA_CORE_PCI_PCICFG0 0x0400 /* PCI config space 0 (rev >= 8) */ +#define BCMA_CORE_PCI_PCICFG1 0x0500 /* PCI config space 1 (rev >= 8) */ +#define BCMA_CORE_PCI_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */ @@ -3046,26 +3149,120 @@ +#define BCMA_CORE_PCI_SBTOPCI_RC_READL 0x00000010 /* Memory read line */ +#define BCMA_CORE_PCI_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */ + ++/* PCIE protocol PHY diagnostic registers */ ++#define BCMA_CORE_PCI_PLP_MODEREG 0x200 /* Mode */ ++#define BCMA_CORE_PCI_PLP_STATUSREG 0x204 /* Status */ ++#define BCMA_CORE_PCI_PLP_POLARITYINV_STAT 0x10 /* Status reg PCIE_PLP_STATUSREG */ ++#define BCMA_CORE_PCI_PLP_LTSSMCTRLREG 0x208 /* LTSSM control */ ++#define BCMA_CORE_PCI_PLP_LTLINKNUMREG 0x20c /* Link Training Link number */ ++#define BCMA_CORE_PCI_PLP_LTLANENUMREG 0x210 /* Link Training Lane number */ ++#define BCMA_CORE_PCI_PLP_LTNFTSREG 0x214 /* Link Training N_FTS */ ++#define BCMA_CORE_PCI_PLP_ATTNREG 0x218 /* Attention */ ++#define BCMA_CORE_PCI_PLP_ATTNMASKREG 0x21C /* Attention Mask */ ++#define BCMA_CORE_PCI_PLP_RXERRCTR 0x220 /* Rx Error */ ++#define BCMA_CORE_PCI_PLP_RXFRMERRCTR 0x224 /* Rx Framing Error */ ++#define BCMA_CORE_PCI_PLP_RXERRTHRESHREG 0x228 /* Rx Error threshold */ ++#define BCMA_CORE_PCI_PLP_TESTCTRLREG 0x22C /* Test Control reg */ ++#define BCMA_CORE_PCI_PLP_SERDESCTRLOVRDREG 0x230 /* SERDES Control Override */ ++#define BCMA_CORE_PCI_PLP_TIMINGOVRDREG 0x234 /* Timing param override */ ++#define BCMA_CORE_PCI_PLP_RXTXSMDIAGREG 0x238 /* RXTX State Machine Diag */ ++#define BCMA_CORE_PCI_PLP_LTSSMDIAGREG 0x23C /* LTSSM State Machine Diag */ ++ ++/* PCIE protocol DLLP diagnostic registers */ ++#define BCMA_CORE_PCI_DLLP_LCREG 0x100 /* Link Control */ ++#define BCMA_CORE_PCI_DLLP_LSREG 0x104 /* Link Status */ ++#define BCMA_CORE_PCI_DLLP_LAREG 0x108 /* Link Attention */ ++#define BCMA_CORE_PCI_DLLP_LSREG_LINKUP (1 << 16) ++#define BCMA_CORE_PCI_DLLP_LAMASKREG 0x10C /* Link Attention Mask */ ++#define BCMA_CORE_PCI_DLLP_NEXTTXSEQNUMREG 0x110 /* Next Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_ACKEDTXSEQNUMREG 0x114 /* Acked Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_PURGEDTXSEQNUMREG 0x118 /* Purged Tx Seq Num */ ++#define BCMA_CORE_PCI_DLLP_RXSEQNUMREG 0x11C /* Rx Sequence Number */ ++#define BCMA_CORE_PCI_DLLP_LRREG 0x120 /* Link Replay */ ++#define BCMA_CORE_PCI_DLLP_LACKTOREG 0x124 /* Link Ack Timeout */ ++#define BCMA_CORE_PCI_DLLP_PMTHRESHREG 0x128 /* Power Management Threshold */ ++#define BCMA_CORE_PCI_DLLP_RTRYWPREG 0x12C /* Retry buffer write ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRYRPREG 0x130 /* Retry buffer Read ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRYPPREG 0x134 /* Retry buffer Purged ptr */ ++#define BCMA_CORE_PCI_DLLP_RTRRWREG 0x138 /* Retry buffer Read/Write */ ++#define BCMA_CORE_PCI_DLLP_ECTHRESHREG 0x13C /* Error Count Threshold */ ++#define BCMA_CORE_PCI_DLLP_TLPERRCTRREG 0x140 /* TLP Error Counter */ ++#define BCMA_CORE_PCI_DLLP_ERRCTRREG 0x144 /* Error Counter */ ++#define BCMA_CORE_PCI_DLLP_NAKRXCTRREG 0x148 /* NAK Received Counter */ ++#define BCMA_CORE_PCI_DLLP_TESTREG 0x14C /* Test */ ++#define BCMA_CORE_PCI_DLLP_PKTBIST 0x150 /* Packet BIST */ ++#define BCMA_CORE_PCI_DLLP_PCIE11 0x154 /* DLLP PCIE 1.1 reg */ ++ ++/* SERDES RX registers */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL 1 /* Rx cntrl */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE 0x80 /* rxpolarity_force */ ++#define BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY 0x40 /* rxpolarity_value */ ++#define BCMA_CORE_PCI_SERDES_RX_TIMER1 2 /* Rx Timer1 */ ++#define BCMA_CORE_PCI_SERDES_RX_CDR 6 /* CDR */ ++#define BCMA_CORE_PCI_SERDES_RX_CDRBW 7 /* CDR BW */ ++ ++/* SERDES PLL registers */ ++#define BCMA_CORE_PCI_SERDES_PLL_CTRL 1 /* PLL control reg */ ++#define BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN 0x4000 /* bit 14 is FREQDET on */ ++ +/* PCIcore specific boardflags */ +#define BCMA_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */ + ++/* PCIE Config space accessing MACROS */ ++#define BCMA_CORE_PCI_CFG_BUS_SHIFT 24 /* Bus shift */ ++#define BCMA_CORE_PCI_CFG_SLOT_SHIFT 19 /* Slot/Device shift */ ++#define BCMA_CORE_PCI_CFG_FUN_SHIFT 16 /* Function shift */ ++#define BCMA_CORE_PCI_CFG_OFF_SHIFT 0 /* Register shift */ ++ ++#define BCMA_CORE_PCI_CFG_BUS_MASK 0xff /* Bus mask */ ++#define BCMA_CORE_PCI_CFG_SLOT_MASK 0x1f /* Slot/Device mask */ ++#define BCMA_CORE_PCI_CFG_FUN_MASK 7 /* Function mask */ ++#define BCMA_CORE_PCI_CFG_OFF_MASK 0xfff /* Register mask */ ++ ++/* PCIE Root Capability Register bits (Host mode only) */ ++#define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001 ++ ++struct bcma_drv_pci; ++ ++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE ++struct bcma_drv_pci_host { ++ struct bcma_drv_pci *pdev; ++ ++ u32 host_cfg_addr; ++ spinlock_t cfgspace_lock; ++ ++ struct pci_controller pci_controller; ++ struct pci_ops pci_ops; ++ struct resource mem_resource; ++ struct resource io_resource; ++}; ++#endif ++ +struct bcma_drv_pci { + struct bcma_device *core; + u8 setup_done:1; ++ u8 hostmode:1; ++ ++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE ++ struct bcma_drv_pci_host *host_controller; ++#endif +}; + +/* Register access */ +#define pcicore_read32(pc, offset) bcma_read32((pc)->core, offset) +#define pcicore_write32(pc, offset, val) bcma_write32((pc)->core, offset, val) + -+extern void bcma_core_pci_init(struct bcma_drv_pci *pc); ++extern void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc); +extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, + struct bcma_device *core, bool enable); + ++extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev); ++extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev); ++ +#endif /* LINUX_BCMA_DRIVER_PCI_H_ */ --- /dev/null +++ b/include/linux/bcma/bcma_regs.h -@@ -0,0 +1,59 @@ +@@ -0,0 +1,86 @@ +#ifndef LINUX_BCMA_REGS_H_ +#define LINUX_BCMA_REGS_H_ + @@ -3124,6 +3321,33 @@ +#define BCMA_PCI_GPIO_XTAL 0x40 /* PCI config space GPIO 14 for Xtal powerup */ +#define BCMA_PCI_GPIO_PLL 0x80 /* PCI config space GPIO 15 for PLL powerdown */ + ++/* SiliconBackplane Address Map. ++ * All regions may not exist on all chips. ++ */ ++#define BCMA_SOC_SDRAM_BASE 0x00000000U /* Physical SDRAM */ ++#define BCMA_SOC_PCI_MEM 0x08000000U /* Host Mode sb2pcitranslation0 (64 MB) */ ++#define BCMA_SOC_PCI_MEM_SZ (64 * 1024 * 1024) ++#define BCMA_SOC_PCI_CFG 0x0c000000U /* Host Mode sb2pcitranslation1 (64 MB) */ ++#define BCMA_SOC_SDRAM_SWAPPED 0x10000000U /* Byteswapped Physical SDRAM */ ++#define BCMA_SOC_SDRAM_R2 0x80000000U /* Region 2 for sdram (512 MB) */ ++ ++ ++#define BCMA_SOC_PCI_DMA 0x40000000U /* Client Mode sb2pcitranslation2 (1 GB) */ ++#define BCMA_SOC_PCI_DMA2 0x80000000U /* Client Mode sb2pcitranslation2 (1 GB) */ ++#define BCMA_SOC_PCI_DMA_SZ 0x40000000U /* Client Mode sb2pcitranslation2 size in bytes */ ++#define BCMA_SOC_PCIE_DMA_L32 0x00000000U /* PCIE Client Mode sb2pcitranslation2 ++ * (2 ZettaBytes), low 32 bits ++ */ ++#define BCMA_SOC_PCIE_DMA_H32 0x80000000U /* PCIE Client Mode sb2pcitranslation2 ++ * (2 ZettaBytes), high 32 bits ++ */ ++ ++#define BCMA_SOC_PCI1_MEM 0x40000000U /* Host Mode sb2pcitranslation0 (64 MB) */ ++#define BCMA_SOC_PCI1_CFG 0x44000000U /* Host Mode sb2pcitranslation1 (64 MB) */ ++#define BCMA_SOC_PCIE1_DMA_H32 0xc0000000U /* PCIE Client Mode sb2pcitranslation2 ++ * (2 ZettaBytes), high 32 bits ++ */ ++ +#endif /* LINUX_BCMA_REGS_H_ */ --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -3191,11 +3415,13 @@ sizeof(struct virtio_device_id), "virtio", --- /dev/null +++ b/drivers/bcma/sprom.c -@@ -0,0 +1,247 @@ +@@ -0,0 +1,450 @@ +/* + * Broadcom specific AMBA + * SPROM reading + * ++ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> ++ * + * Licensed under the GNU/GPL. See COPYING for details. + */ + @@ -3208,7 +3434,57 @@ +#include <linux/dma-mapping.h> +#include <linux/slab.h> + -+#define SPOFF(offset) ((offset) / sizeof(u16)) ++static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out); ++ ++/** ++ * bcma_arch_register_fallback_sprom - Registers a method providing a ++ * fallback SPROM if no SPROM is found. ++ * ++ * @sprom_callback: The callback function. ++ * ++ * With this function the architecture implementation may register a ++ * callback handler which fills the SPROM data structure. The fallback is ++ * used for PCI based BCMA devices, where no valid SPROM can be found ++ * in the shadow registers and to provide the SPROM for SoCs where BCMA is ++ * to controll the system bus. ++ * ++ * This function is useful for weird architectures that have a half-assed ++ * BCMA device hardwired to their PCI bus. ++ * ++ * This function is available for architecture code, only. So it is not ++ * exported. ++ */ ++int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus, ++ struct ssb_sprom *out)) ++{ ++ if (get_fallback_sprom) ++ return -EEXIST; ++ get_fallback_sprom = sprom_callback; ++ ++ return 0; ++} ++ ++static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, ++ struct ssb_sprom *out) ++{ ++ int err; ++ ++ if (!get_fallback_sprom) { ++ err = -ENOENT; ++ goto fail; ++ } ++ ++ err = get_fallback_sprom(bus, out); ++ if (err) ++ goto fail; ++ ++ pr_debug("Using SPROM revision %d provided by" ++ " platform.\n", bus->sprom.revision); ++ return 0; ++fail: ++ pr_warn("Using fallback SPROM failed (err %d)\n", err); ++ return err; ++} + +/************************************************** + * R/W ops. @@ -3318,10 +3594,21 @@ + * SPROM extraction. + **************************************************/ + ++#define SPOFF(offset) ((offset) / sizeof(u16)) ++ ++#define SPEX(_field, _offset, _mask, _shift) \ ++ bus->sprom._field = ((sprom[SPOFF(_offset)] & (_mask)) >> (_shift)) ++ +static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom) +{ -+ u16 v; ++ u16 v, o; + int i; ++ u16 pwr_info_offset[] = { ++ SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, ++ SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 ++ }; ++ BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) != ++ ARRAY_SIZE(bus->sprom.core_pwr_info)); + + bus->sprom.revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & + SSB_SPROM_REVISION_REV; @@ -3331,85 +3618,229 @@ + *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v); + } + -+ bus->sprom.board_rev = sprom[SPOFF(SSB_SPROM8_BOARDREV)]; -+ -+ bus->sprom.txpid2g[0] = (sprom[SPOFF(SSB_SPROM4_TXPID2G01)] & -+ SSB_SPROM4_TXPID2G0) >> SSB_SPROM4_TXPID2G0_SHIFT; -+ bus->sprom.txpid2g[1] = (sprom[SPOFF(SSB_SPROM4_TXPID2G01)] & -+ SSB_SPROM4_TXPID2G1) >> SSB_SPROM4_TXPID2G1_SHIFT; -+ bus->sprom.txpid2g[2] = (sprom[SPOFF(SSB_SPROM4_TXPID2G23)] & -+ SSB_SPROM4_TXPID2G2) >> SSB_SPROM4_TXPID2G2_SHIFT; -+ bus->sprom.txpid2g[3] = (sprom[SPOFF(SSB_SPROM4_TXPID2G23)] & -+ SSB_SPROM4_TXPID2G3) >> SSB_SPROM4_TXPID2G3_SHIFT; -+ -+ bus->sprom.txpid5gl[0] = (sprom[SPOFF(SSB_SPROM4_TXPID5GL01)] & -+ SSB_SPROM4_TXPID5GL0) >> SSB_SPROM4_TXPID5GL0_SHIFT; -+ bus->sprom.txpid5gl[1] = (sprom[SPOFF(SSB_SPROM4_TXPID5GL01)] & -+ SSB_SPROM4_TXPID5GL1) >> SSB_SPROM4_TXPID5GL1_SHIFT; -+ bus->sprom.txpid5gl[2] = (sprom[SPOFF(SSB_SPROM4_TXPID5GL23)] & -+ SSB_SPROM4_TXPID5GL2) >> SSB_SPROM4_TXPID5GL2_SHIFT; -+ bus->sprom.txpid5gl[3] = (sprom[SPOFF(SSB_SPROM4_TXPID5GL23)] & -+ SSB_SPROM4_TXPID5GL3) >> SSB_SPROM4_TXPID5GL3_SHIFT; -+ -+ bus->sprom.txpid5g[0] = (sprom[SPOFF(SSB_SPROM4_TXPID5G01)] & -+ SSB_SPROM4_TXPID5G0) >> SSB_SPROM4_TXPID5G0_SHIFT; -+ bus->sprom.txpid5g[1] = (sprom[SPOFF(SSB_SPROM4_TXPID5G01)] & -+ SSB_SPROM4_TXPID5G1) >> SSB_SPROM4_TXPID5G1_SHIFT; -+ bus->sprom.txpid5g[2] = (sprom[SPOFF(SSB_SPROM4_TXPID5G23)] & -+ SSB_SPROM4_TXPID5G2) >> SSB_SPROM4_TXPID5G2_SHIFT; -+ bus->sprom.txpid5g[3] = (sprom[SPOFF(SSB_SPROM4_TXPID5G23)] & -+ SSB_SPROM4_TXPID5G3) >> SSB_SPROM4_TXPID5G3_SHIFT; -+ -+ bus->sprom.txpid5gh[0] = (sprom[SPOFF(SSB_SPROM4_TXPID5GH01)] & -+ SSB_SPROM4_TXPID5GH0) >> SSB_SPROM4_TXPID5GH0_SHIFT; -+ bus->sprom.txpid5gh[1] = (sprom[SPOFF(SSB_SPROM4_TXPID5GH01)] & -+ SSB_SPROM4_TXPID5GH1) >> SSB_SPROM4_TXPID5GH1_SHIFT; -+ bus->sprom.txpid5gh[2] = (sprom[SPOFF(SSB_SPROM4_TXPID5GH23)] & -+ SSB_SPROM4_TXPID5GH2) >> SSB_SPROM4_TXPID5GH2_SHIFT; -+ bus->sprom.txpid5gh[3] = (sprom[SPOFF(SSB_SPROM4_TXPID5GH23)] & -+ SSB_SPROM4_TXPID5GH3) >> SSB_SPROM4_TXPID5GH3_SHIFT; -+ -+ bus->sprom.boardflags_lo = sprom[SPOFF(SSB_SPROM8_BFLLO)]; -+ bus->sprom.boardflags_hi = sprom[SPOFF(SSB_SPROM8_BFLHI)]; -+ bus->sprom.boardflags2_lo = sprom[SPOFF(SSB_SPROM8_BFL2LO)]; -+ bus->sprom.boardflags2_hi = sprom[SPOFF(SSB_SPROM8_BFL2HI)]; -+ -+ bus->sprom.country_code = sprom[SPOFF(SSB_SPROM8_CCODE)]; -+ -+ bus->sprom.fem.ghz2.tssipos = (sprom[SPOFF(SSB_SPROM8_FEM2G)] & -+ SSB_SROM8_FEM_TSSIPOS) >> SSB_SROM8_FEM_TSSIPOS_SHIFT; -+ bus->sprom.fem.ghz2.extpa_gain = (sprom[SPOFF(SSB_SPROM8_FEM2G)] & -+ SSB_SROM8_FEM_EXTPA_GAIN) >> SSB_SROM8_FEM_EXTPA_GAIN_SHIFT; -+ bus->sprom.fem.ghz2.pdet_range = (sprom[SPOFF(SSB_SPROM8_FEM2G)] & -+ SSB_SROM8_FEM_PDET_RANGE) >> SSB_SROM8_FEM_PDET_RANGE_SHIFT; -+ bus->sprom.fem.ghz2.tr_iso = (sprom[SPOFF(SSB_SPROM8_FEM2G)] & -+ SSB_SROM8_FEM_TR_ISO) >> SSB_SROM8_FEM_TR_ISO_SHIFT; -+ bus->sprom.fem.ghz2.antswlut = (sprom[SPOFF(SSB_SPROM8_FEM2G)] & -+ SSB_SROM8_FEM_ANTSWLUT) >> SSB_SROM8_FEM_ANTSWLUT_SHIFT; -+ -+ bus->sprom.fem.ghz5.tssipos = (sprom[SPOFF(SSB_SPROM8_FEM5G)] & -+ SSB_SROM8_FEM_TSSIPOS) >> SSB_SROM8_FEM_TSSIPOS_SHIFT; -+ bus->sprom.fem.ghz5.extpa_gain = (sprom[SPOFF(SSB_SPROM8_FEM5G)] & -+ SSB_SROM8_FEM_EXTPA_GAIN) >> SSB_SROM8_FEM_EXTPA_GAIN_SHIFT; -+ bus->sprom.fem.ghz5.pdet_range = (sprom[SPOFF(SSB_SPROM8_FEM5G)] & -+ SSB_SROM8_FEM_PDET_RANGE) >> SSB_SROM8_FEM_PDET_RANGE_SHIFT; -+ bus->sprom.fem.ghz5.tr_iso = (sprom[SPOFF(SSB_SPROM8_FEM5G)] & -+ SSB_SROM8_FEM_TR_ISO) >> SSB_SROM8_FEM_TR_ISO_SHIFT; -+ bus->sprom.fem.ghz5.antswlut = (sprom[SPOFF(SSB_SPROM8_FEM5G)] & -+ SSB_SROM8_FEM_ANTSWLUT) >> SSB_SROM8_FEM_ANTSWLUT_SHIFT; ++ SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0); ++ ++ SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0, ++ SSB_SPROM4_TXPID2G0_SHIFT); ++ SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1, ++ SSB_SPROM4_TXPID2G1_SHIFT); ++ SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2, ++ SSB_SPROM4_TXPID2G2_SHIFT); ++ SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3, ++ SSB_SPROM4_TXPID2G3_SHIFT); ++ ++ SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0, ++ SSB_SPROM4_TXPID5GL0_SHIFT); ++ SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1, ++ SSB_SPROM4_TXPID5GL1_SHIFT); ++ SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2, ++ SSB_SPROM4_TXPID5GL2_SHIFT); ++ SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3, ++ SSB_SPROM4_TXPID5GL3_SHIFT); ++ ++ SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0, ++ SSB_SPROM4_TXPID5G0_SHIFT); ++ SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1, ++ SSB_SPROM4_TXPID5G1_SHIFT); ++ SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2, ++ SSB_SPROM4_TXPID5G2_SHIFT); ++ SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3, ++ SSB_SPROM4_TXPID5G3_SHIFT); ++ ++ SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0, ++ SSB_SPROM4_TXPID5GH0_SHIFT); ++ SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1, ++ SSB_SPROM4_TXPID5GH1_SHIFT); ++ SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2, ++ SSB_SPROM4_TXPID5GH2_SHIFT); ++ SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3, ++ SSB_SPROM4_TXPID5GH3_SHIFT); ++ ++ SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0); ++ SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0); ++ SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0); ++ SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0); ++ ++ SPEX(country_code, SSB_SPROM8_CCODE, ~0, 0); ++ ++ /* Extract cores power info info */ ++ for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) { ++ o = pwr_info_offset[i]; ++ SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI, ++ SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT); ++ SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI, ++ SSB_SPROM8_2G_MAXP, 0); ++ ++ SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0); ++ SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0); ++ SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0); ++ ++ SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI, ++ SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT); ++ SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI, ++ SSB_SPROM8_5G_MAXP, 0); ++ SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP, ++ SSB_SPROM8_5GH_MAXP, 0); ++ SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP, ++ SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT); ++ ++ SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0); ++ SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0); ++ } ++ ++ SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS, ++ SSB_SROM8_FEM_TSSIPOS_SHIFT); ++ SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN, ++ SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); ++ SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE, ++ SSB_SROM8_FEM_PDET_RANGE_SHIFT); ++ SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO, ++ SSB_SROM8_FEM_TR_ISO_SHIFT); ++ SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT, ++ SSB_SROM8_FEM_ANTSWLUT_SHIFT); ++ ++ SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS, ++ SSB_SROM8_FEM_TSSIPOS_SHIFT); ++ SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN, ++ SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); ++ SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE, ++ SSB_SROM8_FEM_PDET_RANGE_SHIFT); ++ SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO, ++ SSB_SROM8_FEM_TR_ISO_SHIFT); ++ SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT, ++ SSB_SROM8_FEM_ANTSWLUT_SHIFT); ++} ++ ++/* ++ * Indicates the presence of external SPROM. ++ */ ++static bool bcma_sprom_ext_available(struct bcma_bus *bus) ++{ ++ u32 chip_status; ++ u32 srom_control; ++ u32 present_mask; ++ ++ if (bus->drv_cc.core->id.rev >= 31) { ++ if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) ++ return false; ++ ++ srom_control = bcma_read32(bus->drv_cc.core, ++ BCMA_CC_SROM_CONTROL); ++ return srom_control & BCMA_CC_SROM_CONTROL_PRESENT; ++ } ++ ++ /* older chipcommon revisions use chip status register */ ++ chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT); ++ switch (bus->chipinfo.id) { ++ case 0x4313: ++ present_mask = BCMA_CC_CHIPST_4313_SPROM_PRESENT; ++ break; ++ ++ case 0x4331: ++ present_mask = BCMA_CC_CHIPST_4331_SPROM_PRESENT; ++ break; ++ ++ default: ++ return true; ++ } ++ ++ return chip_status & present_mask; ++} ++ ++/* ++ * Indicates that on-chip OTP memory is present and enabled. ++ */ ++static bool bcma_sprom_onchip_available(struct bcma_bus *bus) ++{ ++ u32 chip_status; ++ u32 otpsize = 0; ++ bool present; ++ ++ chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT); ++ switch (bus->chipinfo.id) { ++ case 0x4313: ++ present = chip_status & BCMA_CC_CHIPST_4313_OTP_PRESENT; ++ break; ++ ++ case 0x4331: ++ present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT; ++ break; ++ ++ case 43224: ++ case 43225: ++ /* for these chips OTP is always available */ ++ present = true; ++ break; ++ ++ default: ++ present = false; ++ break; ++ } ++ ++ if (present) { ++ otpsize = bus->drv_cc.capabilities & BCMA_CC_CAP_OTPS; ++ otpsize >>= BCMA_CC_CAP_OTPS_SHIFT; ++ } ++ ++ return otpsize != 0; ++} ++ ++/* ++ * Verify OTP is filled and determine the byte ++ * offset where SPROM data is located. ++ * ++ * On error, returns 0; byte offset otherwise. ++ */ ++static int bcma_sprom_onchip_offset(struct bcma_bus *bus) ++{ ++ struct bcma_device *cc = bus->drv_cc.core; ++ u32 offset; ++ ++ /* verify OTP status */ ++ if ((bcma_read32(cc, BCMA_CC_OTPS) & BCMA_CC_OTPS_GU_PROG_HW) == 0) ++ return 0; ++ ++ /* obtain bit offset from otplayout register */ ++ offset = (bcma_read32(cc, BCMA_CC_OTPL) & BCMA_CC_OTPL_GURGN_OFFSET); ++ return BCMA_CC_SPROM + (offset >> 3); +} + +int bcma_sprom_get(struct bcma_bus *bus) +{ -+ u16 offset; ++ u16 offset = BCMA_CC_SPROM; + u16 *sprom; + int err = 0; + + if (!bus->drv_cc.core) + return -EOPNOTSUPP; + -+ if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) -+ return -ENOENT; ++ if (!bcma_sprom_ext_available(bus)) { ++ /* ++ * External SPROM takes precedence so check ++ * on-chip OTP only when no external SPROM ++ * is present. ++ */ ++ if (bcma_sprom_onchip_available(bus)) { ++ /* determine offset */ ++ offset = bcma_sprom_onchip_offset(bus); ++ } ++ if (!offset) { ++ /* ++ * Maybe there is no SPROM on the device? ++ * Now we ask the arch code if there is some sprom ++ * available for this device in some other storage. ++ */ ++ err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); ++ return err; ++ } ++ } + + sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), + GFP_KERNEL); @@ -3419,11 +3850,7 @@ + if (bus->chipinfo.id == 0x4331) + bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false); + -+ /* Most cards have SPROM moved by additional offset 0x30 (48 dwords). -+ * According to brcm80211 this applies to cards with PCIe rev >= 6 -+ * TODO: understand this condition and use it */ -+ offset = (bus->chipinfo.id == 0x4331) ? BCMA_CC_SPROM : -+ BCMA_CC_SPROM_PCIE6; ++ pr_debug("SPROM offset 0x%x\n", offset); + bcma_sprom_read(bus, offset, sprom); + + if (bus->chipinfo.id == 0x4331) @@ -3441,21 +3868,596 @@ +} --- /dev/null +++ b/drivers/bcma/driver_pci_host.c -@@ -0,0 +1,14 @@ +@@ -0,0 +1,589 @@ +/* + * Broadcom specific AMBA + * PCI Core in hostmode + * ++ * Copyright 2005 - 2011, Broadcom Corporation ++ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> ++ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> ++ * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "bcma_private.h" ++#include <linux/pci.h> ++#include <linux/export.h> +#include <linux/bcma/bcma.h> ++#include <asm/paccess.h> ++ ++/* Probe a 32bit value on the bus and catch bus exceptions. ++ * Returns nonzero on a bus exception. ++ * This is MIPS specific */ ++#define mips_busprobe32(val, addr) get_dbe((val), ((u32 *)(addr))) ++ ++/* Assume one-hot slot wiring */ ++#define BCMA_PCI_SLOT_MAX 16 ++#define PCI_CONFIG_SPACE_SIZE 256 ++ ++bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc) ++{ ++ struct bcma_bus *bus = pc->core->bus; ++ u16 chipid_top; ++ u32 tmp; ++ ++ chipid_top = (bus->chipinfo.id & 0xFF00); ++ if (chipid_top != 0x4700 && ++ chipid_top != 0x5300) ++ return false; ++ ++ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) { ++ pr_info("This PCI core is disabled and not working\n"); ++ return false; ++ } + -+void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc) ++ bcma_core_enable(pc->core, 0); ++ ++ return !mips_busprobe32(tmp, pc->core->io_addr); ++} ++ ++static u32 bcma_pcie_read_config(struct bcma_drv_pci *pc, u32 address) ++{ ++ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR); ++ return pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_DATA); ++} ++ ++static void bcma_pcie_write_config(struct bcma_drv_pci *pc, u32 address, ++ u32 data) +{ -+ pr_err("No support for PCI core in hostmode yet\n"); ++ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address); ++ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR); ++ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_DATA, data); ++} ++ ++static u32 bcma_get_cfgspace_addr(struct bcma_drv_pci *pc, unsigned int dev, ++ unsigned int func, unsigned int off) ++{ ++ u32 addr = 0; ++ ++ /* Issue config commands only when the data link is up (atleast ++ * one external pcie device is present). ++ */ ++ if (dev >= 2 || !(bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_LSREG) ++ & BCMA_CORE_PCI_DLLP_LSREG_LINKUP)) ++ goto out; ++ ++ /* Type 0 transaction */ ++ /* Slide the PCI window to the appropriate slot */ ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0); ++ /* Calculate the address */ ++ addr = pc->host_controller->host_cfg_addr; ++ addr |= (dev << BCMA_CORE_PCI_CFG_SLOT_SHIFT); ++ addr |= (func << BCMA_CORE_PCI_CFG_FUN_SHIFT); ++ addr |= (off & ~3); ++ ++out: ++ return addr; ++} ++ ++static int bcma_extpci_read_config(struct bcma_drv_pci *pc, unsigned int dev, ++ unsigned int func, unsigned int off, ++ void *buf, int len) ++{ ++ int err = -EINVAL; ++ u32 addr, val; ++ void __iomem *mmio = 0; ++ ++ WARN_ON(!pc->hostmode); ++ if (unlikely(len != 1 && len != 2 && len != 4)) ++ goto out; ++ if (dev == 0) { ++ /* we support only two functions on device 0 */ ++ if (func > 1) ++ return -EINVAL; ++ ++ /* accesses to config registers with offsets >= 256 ++ * requires indirect access. ++ */ ++ if (off >= PCI_CONFIG_SPACE_SIZE) { ++ addr = (func << 12); ++ addr |= (off & 0x0FFF); ++ val = bcma_pcie_read_config(pc, addr); ++ } else { ++ addr = BCMA_CORE_PCI_PCICFG0; ++ addr |= (func << 8); ++ addr |= (off & 0xfc); ++ val = pcicore_read32(pc, addr); ++ } ++ } else { ++ addr = bcma_get_cfgspace_addr(pc, dev, func, off); ++ if (unlikely(!addr)) ++ goto out; ++ err = -ENOMEM; ++ mmio = ioremap_nocache(addr, len); ++ if (!mmio) ++ goto out; ++ ++ if (mips_busprobe32(val, mmio)) { ++ val = 0xffffffff; ++ goto unmap; ++ } ++ ++ val = readl(mmio); ++ } ++ val >>= (8 * (off & 3)); ++ ++ switch (len) { ++ case 1: ++ *((u8 *)buf) = (u8)val; ++ break; ++ case 2: ++ *((u16 *)buf) = (u16)val; ++ break; ++ case 4: ++ *((u32 *)buf) = (u32)val; ++ break; ++ } ++ err = 0; ++unmap: ++ if (mmio) ++ iounmap(mmio); ++out: ++ return err; ++} ++ ++static int bcma_extpci_write_config(struct bcma_drv_pci *pc, unsigned int dev, ++ unsigned int func, unsigned int off, ++ const void *buf, int len) ++{ ++ int err = -EINVAL; ++ u32 addr = 0, val = 0; ++ void __iomem *mmio = 0; ++ u16 chipid = pc->core->bus->chipinfo.id; ++ ++ WARN_ON(!pc->hostmode); ++ if (unlikely(len != 1 && len != 2 && len != 4)) ++ goto out; ++ if (dev == 0) { ++ /* accesses to config registers with offsets >= 256 ++ * requires indirect access. ++ */ ++ if (off < PCI_CONFIG_SPACE_SIZE) { ++ addr = pc->core->addr + BCMA_CORE_PCI_PCICFG0; ++ addr |= (func << 8); ++ addr |= (off & 0xfc); ++ mmio = ioremap_nocache(addr, len); ++ if (!mmio) ++ goto out; ++ } ++ } else { ++ addr = bcma_get_cfgspace_addr(pc, dev, func, off); ++ if (unlikely(!addr)) ++ goto out; ++ err = -ENOMEM; ++ mmio = ioremap_nocache(addr, len); ++ if (!mmio) ++ goto out; ++ ++ if (mips_busprobe32(val, mmio)) { ++ val = 0xffffffff; ++ goto unmap; ++ } ++ } ++ ++ switch (len) { ++ case 1: ++ val = readl(mmio); ++ val &= ~(0xFF << (8 * (off & 3))); ++ val |= *((const u8 *)buf) << (8 * (off & 3)); ++ break; ++ case 2: ++ val = readl(mmio); ++ val &= ~(0xFFFF << (8 * (off & 3))); ++ val |= *((const u16 *)buf) << (8 * (off & 3)); ++ break; ++ case 4: ++ val = *((const u32 *)buf); ++ break; ++ } ++ if (dev == 0 && !addr) { ++ /* accesses to config registers with offsets >= 256 ++ * requires indirect access. ++ */ ++ addr = (func << 12); ++ addr |= (off & 0x0FFF); ++ bcma_pcie_write_config(pc, addr, val); ++ } else { ++ writel(val, mmio); ++ ++ if (chipid == 0x4716 || chipid == 0x4748) ++ readl(mmio); ++ } ++ ++ err = 0; ++unmap: ++ if (mmio) ++ iounmap(mmio); ++out: ++ return err; ++} ++ ++static int bcma_core_pci_hostmode_read_config(struct pci_bus *bus, ++ unsigned int devfn, ++ int reg, int size, u32 *val) ++{ ++ unsigned long flags; ++ int err; ++ struct bcma_drv_pci *pc; ++ struct bcma_drv_pci_host *pc_host; ++ ++ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops); ++ pc = pc_host->pdev; ++ ++ spin_lock_irqsave(&pc_host->cfgspace_lock, flags); ++ err = bcma_extpci_read_config(pc, PCI_SLOT(devfn), ++ PCI_FUNC(devfn), reg, val, size); ++ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags); ++ ++ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; ++} ++ ++static int bcma_core_pci_hostmode_write_config(struct pci_bus *bus, ++ unsigned int devfn, ++ int reg, int size, u32 val) ++{ ++ unsigned long flags; ++ int err; ++ struct bcma_drv_pci *pc; ++ struct bcma_drv_pci_host *pc_host; ++ ++ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops); ++ pc = pc_host->pdev; ++ ++ spin_lock_irqsave(&pc_host->cfgspace_lock, flags); ++ err = bcma_extpci_write_config(pc, PCI_SLOT(devfn), ++ PCI_FUNC(devfn), reg, &val, size); ++ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags); ++ ++ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; ++} ++ ++/* return cap_offset if requested capability exists in the PCI config space */ ++static u8 __devinit bcma_find_pci_capability(struct bcma_drv_pci *pc, ++ unsigned int dev, ++ unsigned int func, u8 req_cap_id, ++ unsigned char *buf, u32 *buflen) ++{ ++ u8 cap_id; ++ u8 cap_ptr = 0; ++ u32 bufsize; ++ u8 byte_val; ++ ++ /* check for Header type 0 */ ++ bcma_extpci_read_config(pc, dev, func, PCI_HEADER_TYPE, &byte_val, ++ sizeof(u8)); ++ if ((byte_val & 0x7f) != PCI_HEADER_TYPE_NORMAL) ++ return cap_ptr; ++ ++ /* check if the capability pointer field exists */ ++ bcma_extpci_read_config(pc, dev, func, PCI_STATUS, &byte_val, ++ sizeof(u8)); ++ if (!(byte_val & PCI_STATUS_CAP_LIST)) ++ return cap_ptr; ++ ++ /* check if the capability pointer is 0x00 */ ++ bcma_extpci_read_config(pc, dev, func, PCI_CAPABILITY_LIST, &cap_ptr, ++ sizeof(u8)); ++ if (cap_ptr == 0x00) ++ return cap_ptr; ++ ++ /* loop thr'u the capability list and see if the requested capabilty ++ * exists */ ++ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id, sizeof(u8)); ++ while (cap_id != req_cap_id) { ++ bcma_extpci_read_config(pc, dev, func, cap_ptr + 1, &cap_ptr, ++ sizeof(u8)); ++ if (cap_ptr == 0x00) ++ return cap_ptr; ++ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id, ++ sizeof(u8)); ++ } ++ ++ /* found the caller requested capability */ ++ if ((buf != NULL) && (buflen != NULL)) { ++ u8 cap_data; ++ ++ bufsize = *buflen; ++ if (!bufsize) ++ return cap_ptr; ++ ++ *buflen = 0; ++ ++ /* copy the cpability data excluding cap ID and next ptr */ ++ cap_data = cap_ptr + 2; ++ if ((bufsize + cap_data) > PCI_CONFIG_SPACE_SIZE) ++ bufsize = PCI_CONFIG_SPACE_SIZE - cap_data; ++ *buflen = bufsize; ++ while (bufsize--) { ++ bcma_extpci_read_config(pc, dev, func, cap_data, buf, ++ sizeof(u8)); ++ cap_data++; ++ buf++; ++ } ++ } ++ ++ return cap_ptr; ++} ++ ++/* If the root port is capable of returning Config Request ++ * Retry Status (CRS) Completion Status to software then ++ * enable the feature. ++ */ ++static void __devinit bcma_core_pci_enable_crs(struct bcma_drv_pci *pc) ++{ ++ u8 cap_ptr, root_ctrl, root_cap, dev; ++ u16 val16; ++ int i; ++ ++ cap_ptr = bcma_find_pci_capability(pc, 0, 0, PCI_CAP_ID_EXP, NULL, ++ NULL); ++ root_cap = cap_ptr + PCI_EXP_RTCAP; ++ bcma_extpci_read_config(pc, 0, 0, root_cap, &val16, sizeof(u16)); ++ if (val16 & BCMA_CORE_PCI_RC_CRS_VISIBILITY) { ++ /* Enable CRS software visibility */ ++ root_ctrl = cap_ptr + PCI_EXP_RTCTL; ++ val16 = PCI_EXP_RTCTL_CRSSVE; ++ bcma_extpci_read_config(pc, 0, 0, root_ctrl, &val16, ++ sizeof(u16)); ++ ++ /* Initiate a configuration request to read the vendor id ++ * field of the device function's config space header after ++ * 100 ms wait time from the end of Reset. If the device is ++ * not done with its internal initialization, it must at ++ * least return a completion TLP, with a completion status ++ * of "Configuration Request Retry Status (CRS)". The root ++ * complex must complete the request to the host by returning ++ * a read-data value of 0001h for the Vendor ID field and ++ * all 1s for any additional bytes included in the request. ++ * Poll using the config reads for max wait time of 1 sec or ++ * until we receive the successful completion status. Repeat ++ * the procedure for all the devices. ++ */ ++ for (dev = 1; dev < BCMA_PCI_SLOT_MAX; dev++) { ++ for (i = 0; i < 100000; i++) { ++ bcma_extpci_read_config(pc, dev, 0, ++ PCI_VENDOR_ID, &val16, ++ sizeof(val16)); ++ if (val16 != 0x1) ++ break; ++ udelay(10); ++ } ++ if (val16 == 0x1) ++ pr_err("PCI: Broken device in slot %d\n", dev); ++ } ++ } ++} ++ ++void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc) ++{ ++ struct bcma_bus *bus = pc->core->bus; ++ struct bcma_drv_pci_host *pc_host; ++ u32 tmp; ++ u32 pci_membase_1G; ++ unsigned long io_map_base; ++ ++ pr_info("PCIEcore in host mode found\n"); ++ ++ pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL); ++ if (!pc_host) { ++ pr_err("can not allocate memory"); ++ return; ++ } ++ ++ pc->host_controller = pc_host; ++ pc_host->pci_controller.io_resource = &pc_host->io_resource; ++ pc_host->pci_controller.mem_resource = &pc_host->mem_resource; ++ pc_host->pci_controller.pci_ops = &pc_host->pci_ops; ++ pc_host->pdev = pc; ++ ++ pci_membase_1G = BCMA_SOC_PCI_DMA; ++ pc_host->host_cfg_addr = BCMA_SOC_PCI_CFG; ++ ++ pc_host->pci_ops.read = bcma_core_pci_hostmode_read_config; ++ pc_host->pci_ops.write = bcma_core_pci_hostmode_write_config; ++ ++ pc_host->mem_resource.name = "BCMA PCIcore external memory", ++ pc_host->mem_resource.start = BCMA_SOC_PCI_DMA; ++ pc_host->mem_resource.end = BCMA_SOC_PCI_DMA + BCMA_SOC_PCI_DMA_SZ - 1; ++ pc_host->mem_resource.flags = IORESOURCE_MEM | IORESOURCE_PCI_FIXED; ++ ++ pc_host->io_resource.name = "BCMA PCIcore external I/O", ++ pc_host->io_resource.start = 0x100; ++ pc_host->io_resource.end = 0x7FF; ++ pc_host->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED; ++ ++ /* Reset RC */ ++ udelay(3000); ++ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST_OE); ++ udelay(1000); ++ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST | ++ BCMA_CORE_PCI_CTL_RST_OE); ++ ++ /* 64 MB I/O access window. On 4716, use ++ * sbtopcie0 to access the device registers. We ++ * can't use address match 2 (1 GB window) region ++ * as mips can't generate 64-bit address on the ++ * backplane. ++ */ ++ if (bus->chipinfo.id == 0x4716 || bus->chipinfo.id == 0x4748) { ++ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM; ++ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM + ++ BCMA_SOC_PCI_MEM_SZ - 1; ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, ++ BCMA_CORE_PCI_SBTOPCI_MEM | BCMA_SOC_PCI_MEM); ++ } else if (bus->chipinfo.id == 0x5300) { ++ tmp = BCMA_CORE_PCI_SBTOPCI_MEM; ++ tmp |= BCMA_CORE_PCI_SBTOPCI_PREF; ++ tmp |= BCMA_CORE_PCI_SBTOPCI_BURST; ++ if (pc->core->core_unit == 0) { ++ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM; ++ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM + ++ BCMA_SOC_PCI_MEM_SZ - 1; ++ pci_membase_1G = BCMA_SOC_PCIE_DMA_H32; ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, ++ tmp | BCMA_SOC_PCI_MEM); ++ } else if (pc->core->core_unit == 1) { ++ pc_host->mem_resource.start = BCMA_SOC_PCI1_MEM; ++ pc_host->mem_resource.end = BCMA_SOC_PCI1_MEM + ++ BCMA_SOC_PCI_MEM_SZ - 1; ++ pci_membase_1G = BCMA_SOC_PCIE1_DMA_H32; ++ pc_host->host_cfg_addr = BCMA_SOC_PCI1_CFG; ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, ++ tmp | BCMA_SOC_PCI1_MEM); ++ } ++ } else ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, ++ BCMA_CORE_PCI_SBTOPCI_IO); ++ ++ /* 64 MB configuration access window */ ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0); ++ ++ /* 1 GB memory access window */ ++ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI2, ++ BCMA_CORE_PCI_SBTOPCI_MEM | pci_membase_1G); ++ ++ ++ /* As per PCI Express Base Spec 1.1 we need to wait for ++ * at least 100 ms from the end of a reset (cold/warm/hot) ++ * before issuing configuration requests to PCI Express ++ * devices. ++ */ ++ udelay(100000); ++ ++ bcma_core_pci_enable_crs(pc); ++ ++ /* Enable PCI bridge BAR0 memory & master access */ ++ tmp = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; ++ bcma_extpci_write_config(pc, 0, 0, PCI_COMMAND, &tmp, sizeof(tmp)); ++ ++ /* Enable PCI interrupts */ ++ pcicore_write32(pc, BCMA_CORE_PCI_IMASK, BCMA_CORE_PCI_IMASK_INTA); ++ ++ /* Ok, ready to run, register it to the system. ++ * The following needs change, if we want to port hostmode ++ * to non-MIPS platform. */ ++ io_map_base = (unsigned long)ioremap_nocache(BCMA_SOC_PCI_MEM, ++ 0x04000000); ++ pc_host->pci_controller.io_map_base = io_map_base; ++ set_io_port_base(pc_host->pci_controller.io_map_base); ++ /* Give some time to the PCI controller to configure itself with the new ++ * values. Not waiting at this point causes crashes of the machine. */ ++ mdelay(10); ++ register_pci_controller(&pc_host->pci_controller); ++ return; ++} ++ ++/* Early PCI fixup for a device on the PCI-core bridge. */ ++static void bcma_core_pci_fixup_pcibridge(struct pci_dev *dev) ++{ ++ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { ++ /* This is not a device on the PCI-core bridge. */ ++ return; ++ } ++ if (PCI_SLOT(dev->devfn) != 0) ++ return; ++ ++ pr_info("PCI: Fixing up bridge %s\n", pci_name(dev)); ++ ++ /* Enable PCI bridge bus mastering and memory space */ ++ pci_set_master(dev); ++ if (pcibios_enable_device(dev, ~0) < 0) { ++ pr_err("PCI: BCMA bridge enable failed\n"); ++ return; ++ } ++ ++ /* Enable PCI bridge BAR1 prefetch and burst */ ++ pci_write_config_dword(dev, BCMA_PCI_BAR1_CONTROL, 3); ++} ++DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_pcibridge); ++ ++/* Early PCI fixup for all PCI-cores to set the correct memory address. */ ++static void bcma_core_pci_fixup_addresses(struct pci_dev *dev) ++{ ++ struct resource *res; ++ int pos; ++ ++ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { ++ /* This is not a device on the PCI-core bridge. */ ++ return; ++ } ++ if (PCI_SLOT(dev->devfn) == 0) ++ return; ++ ++ pr_info("PCI: Fixing up addresses %s\n", pci_name(dev)); ++ ++ for (pos = 0; pos < 6; pos++) { ++ res = &dev->resource[pos]; ++ if (res->flags & (IORESOURCE_IO | IORESOURCE_MEM)) ++ pci_assign_resource(dev, pos); ++ } ++} ++DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_addresses); ++ ++/* This function is called when doing a pci_enable_device(). ++ * We must first check if the device is a device on the PCI-core bridge. */ ++int bcma_core_pci_plat_dev_init(struct pci_dev *dev) ++{ ++ struct bcma_drv_pci_host *pc_host; ++ ++ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { ++ /* This is not a device on the PCI-core bridge. */ ++ return -ENODEV; ++ } ++ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host, ++ pci_ops); ++ ++ pr_info("PCI: Fixing up device %s\n", pci_name(dev)); ++ ++ /* Fix up interrupt lines */ ++ dev->irq = bcma_core_mips_irq(pc_host->pdev->core) + 2; ++ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); ++ ++ return 0; ++} ++EXPORT_SYMBOL(bcma_core_pci_plat_dev_init); ++ ++/* PCI device IRQ mapping. */ ++int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev) ++{ ++ struct bcma_drv_pci_host *pc_host; ++ ++ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { ++ /* This is not a device on the PCI-core bridge. */ ++ return -ENODEV; ++ } ++ ++ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host, ++ pci_ops); ++ return bcma_core_mips_irq(pc_host->pdev->core) + 2; +} ++EXPORT_SYMBOL(bcma_core_pci_pcibios_map_irq); --- /dev/null +++ b/drivers/bcma/driver_mips.c @@ -0,0 +1,256 @@ |