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528 lines
15 KiB
528 lines
15 KiB
![]()
10 years ago
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--- a/drivers/bcma/bcma_private.h
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+++ b/drivers/bcma/bcma_private.h
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![]()
8 years ago
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@@ -23,22 +23,18 @@ struct bcma_bus;
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![]()
10 years ago
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bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
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int timeout);
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void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core);
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+void bcma_init_bus(struct bcma_bus *bus);
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int bcma_bus_register(struct bcma_bus *bus);
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void bcma_bus_unregister(struct bcma_bus *bus);
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-int __init bcma_bus_early_register(struct bcma_bus *bus,
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- struct bcma_device *core_cc,
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- struct bcma_device *core_mips);
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+int __init bcma_bus_early_register(struct bcma_bus *bus);
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#ifdef CONFIG_PM
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int bcma_bus_suspend(struct bcma_bus *bus);
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int bcma_bus_resume(struct bcma_bus *bus);
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#endif
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/* scan.c */
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+void bcma_detect_chip(struct bcma_bus *bus);
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int bcma_bus_scan(struct bcma_bus *bus);
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-int __init bcma_bus_scan_early(struct bcma_bus *bus,
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- struct bcma_device_id *match,
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- struct bcma_device *core);
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-void bcma_init_bus(struct bcma_bus *bus);
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/* sprom.c */
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int bcma_sprom_get(struct bcma_bus *bus);
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![]()
8 years ago
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@@ -109,6 +105,14 @@ extern int bcma_chipco_watchdog_register
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![]()
10 years ago
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#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
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bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
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void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
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+#else
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+static inline bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
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+{
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+ return false;
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+}
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+static inline void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
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+{
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+}
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#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
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#ifdef CONFIG_BCMA_DRIVER_GPIO
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--- a/drivers/bcma/driver_chipcommon.c
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+++ b/drivers/bcma/driver_chipcommon.c
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@@ -79,7 +79,9 @@ static int bcma_chipco_watchdog_ticks_pe
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if (cc->capabilities & BCMA_CC_CAP_PMU) {
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if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
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- /* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP clock */
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+ /* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP
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+ * clock
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+ */
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return bcma_chipco_get_alp_clock(cc) / 4000;
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else
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/* based on 32KHz ILP clock */
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@@ -97,7 +99,8 @@ int bcma_chipco_watchdog_register(struct
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wdt.driver_data = cc;
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wdt.timer_set = bcma_chipco_watchdog_timer_set_wdt;
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wdt.timer_set_ms = bcma_chipco_watchdog_timer_set_ms_wdt;
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- wdt.max_timer_ms = bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
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+ wdt.max_timer_ms =
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+ bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
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pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
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cc->core->bus->num, &wdt,
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@@ -175,7 +178,6 @@ void bcma_core_chipcommon_init(struct bc
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u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
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{
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u32 maxt;
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- enum bcma_clkmode clkmode;
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maxt = bcma_chipco_watchdog_get_max_timer(cc);
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if (cc->capabilities & BCMA_CC_CAP_PMU) {
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@@ -185,8 +187,13 @@ u32 bcma_chipco_watchdog_timer_set(struc
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ticks = maxt;
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bcma_cc_write32(cc, BCMA_CC_PMU_WATCHDOG, ticks);
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} else {
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- clkmode = ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC;
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- bcma_core_set_clockmode(cc->core, clkmode);
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+ struct bcma_bus *bus = cc->core->bus;
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+
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+ if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4707 &&
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+ bus->chipinfo.id != BCMA_CHIP_ID_BCM53018)
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+ bcma_core_set_clockmode(cc->core,
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+ ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC);
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+
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if (ticks > maxt)
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ticks = maxt;
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/* instant NMI */
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@@ -335,7 +342,8 @@ void bcma_chipco_serial_init(struct bcma
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| BCMA_CC_CORECTL_UARTCLKEN);
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}
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} else {
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- bcma_err(cc->core->bus, "serial not supported on this device ccrev: 0x%x\n", ccrev);
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+ bcma_err(cc->core->bus, "serial not supported on this device ccrev: 0x%x\n",
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+ ccrev);
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return;
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}
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--- a/drivers/bcma/driver_pci.c
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+++ b/drivers/bcma/driver_pci.c
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@@ -145,6 +145,47 @@ static u16 bcma_pcie_mdio_writeread(stru
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}
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/**************************************************
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+ * Early init.
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+ **************************************************/
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+
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+static void bcma_core_pci_fixcfg(struct bcma_drv_pci *pc)
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+{
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+ struct bcma_device *core = pc->core;
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+ u16 val16, core_index;
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+ uint regoff;
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+
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+ regoff = BCMA_CORE_PCI_SPROM(BCMA_CORE_PCI_SPROM_PI_OFFSET);
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+ core_index = (u16)core->core_index;
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+
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+ val16 = pcicore_read16(pc, regoff);
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+ if (((val16 & BCMA_CORE_PCI_SPROM_PI_MASK) >> BCMA_CORE_PCI_SPROM_PI_SHIFT)
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+ != core_index) {
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+ val16 = (core_index << BCMA_CORE_PCI_SPROM_PI_SHIFT) |
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+ (val16 & ~BCMA_CORE_PCI_SPROM_PI_MASK);
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+ pcicore_write16(pc, regoff, val16);
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+ }
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+}
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+
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+/*
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+ * Apply some early fixes required before accessing SPROM.
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+ * See also si_pci_fixcfg.
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+ */
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+void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
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+{
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+ if (pc->early_setup_done)
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+ return;
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+
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+ pc->hostmode = bcma_core_pci_is_in_hostmode(pc);
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+ if (pc->hostmode)
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+ goto out;
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+
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+ bcma_core_pci_fixcfg(pc);
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+
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+out:
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+ pc->early_setup_done = true;
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+}
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+
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+/**************************************************
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* Workarounds.
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**************************************************/
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@@ -175,24 +216,6 @@ static void bcma_pcicore_serdes_workarou
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tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN);
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}
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-static void bcma_core_pci_fixcfg(struct bcma_drv_pci *pc)
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-{
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- struct bcma_device *core = pc->core;
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- u16 val16, core_index;
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- uint regoff;
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-
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- regoff = BCMA_CORE_PCI_SPROM(BCMA_CORE_PCI_SPROM_PI_OFFSET);
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- core_index = (u16)core->core_index;
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-
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- val16 = pcicore_read16(pc, regoff);
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- if (((val16 & BCMA_CORE_PCI_SPROM_PI_MASK) >> BCMA_CORE_PCI_SPROM_PI_SHIFT)
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- != core_index) {
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- val16 = (core_index << BCMA_CORE_PCI_SPROM_PI_SHIFT) |
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- (val16 & ~BCMA_CORE_PCI_SPROM_PI_MASK);
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- pcicore_write16(pc, regoff, val16);
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- }
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-}
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-
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/* Fix MISC config to allow coming out of L2/L3-Ready state w/o PRST */
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/* Needs to happen when coming out of 'standby'/'hibernate' */
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static void bcma_core_pci_config_fixup(struct bcma_drv_pci *pc)
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@@ -216,7 +239,6 @@ static void bcma_core_pci_config_fixup(s
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static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
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{
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- bcma_core_pci_fixcfg(pc);
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bcma_pcicore_serdes_workaround(pc);
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bcma_core_pci_config_fixup(pc);
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}
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@@ -226,13 +248,11 @@ void bcma_core_pci_init(struct bcma_drv_
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if (pc->setup_done)
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return;
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-#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
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- pc->hostmode = bcma_core_pci_is_in_hostmode(pc);
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+ bcma_core_pci_early_init(pc);
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+
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if (pc->hostmode)
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bcma_core_pci_hostmode_init(pc);
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-#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
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-
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- if (!pc->hostmode)
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+ else
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bcma_core_pci_clientmode_init(pc);
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}
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--- a/drivers/bcma/host_pci.c
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+++ b/drivers/bcma/host_pci.c
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@@ -13,10 +13,12 @@
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static void bcma_host_pci_switch_core(struct bcma_device *core)
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{
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+ int win2 = core->bus->host_is_pcie2 ?
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+ BCMA_PCIE2_BAR0_WIN2 : BCMA_PCI_BAR0_WIN2;
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+
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pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN,
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core->addr);
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- pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN2,
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- core->wrap);
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+ pci_write_config_dword(core->bus->host_pci, win2, core->wrap);
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core->bus->mapped_core = core;
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bcma_debug(core->bus, "Switched to core: 0x%X\n", core->id.id);
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}
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--- a/drivers/bcma/host_soc.c
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+++ b/drivers/bcma/host_soc.c
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@@ -193,7 +193,7 @@ int __init bcma_host_soc_init(struct bcm
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int err;
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/* Scan bus and initialize it */
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- err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
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+ err = bcma_bus_early_register(bus);
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if (err)
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iounmap(bus->mmio);
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--- a/drivers/bcma/main.c
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+++ b/drivers/bcma/main.c
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@@ -268,6 +268,18 @@ void bcma_prepare_core(struct bcma_bus *
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}
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}
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+void bcma_init_bus(struct bcma_bus *bus)
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+{
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+ mutex_lock(&bcma_buses_mutex);
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+ bus->num = bcma_bus_next_num++;
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+ mutex_unlock(&bcma_buses_mutex);
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+
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+ INIT_LIST_HEAD(&bus->cores);
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+ bus->nr_cores = 0;
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+
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+ bcma_detect_chip(bus);
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+}
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+
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static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
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{
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int err;
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@@ -356,12 +368,19 @@ static void bcma_unregister_cores(struct
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struct bcma_device *core, *tmp;
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list_for_each_entry_safe(core, tmp, &bus->cores, list) {
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+ if (!core->dev_registered)
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+ continue;
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list_del(&core->list);
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- if (core->dev_registered)
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- device_unregister(&core->dev);
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+ device_unregister(&core->dev);
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}
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if (bus->hosttype == BCMA_HOSTTYPE_SOC)
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platform_device_unregister(bus->drv_cc.watchdog);
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+
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+ /* Now noone uses internally-handled cores, we can free them */
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+ list_for_each_entry_safe(core, tmp, &bus->cores, list) {
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+ list_del(&core->list);
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+ kfree(core);
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+ }
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}
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int bcma_bus_register(struct bcma_bus *bus)
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@@ -369,10 +388,6 @@ int bcma_bus_register(struct bcma_bus *b
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int err;
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struct bcma_device *core;
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- mutex_lock(&bcma_buses_mutex);
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- bus->num = bcma_bus_next_num++;
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- mutex_unlock(&bcma_buses_mutex);
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-
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/* Scan for devices (cores) */
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err = bcma_bus_scan(bus);
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if (err) {
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@@ -387,6 +402,13 @@ int bcma_bus_register(struct bcma_bus *b
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bcma_core_chipcommon_early_init(&bus->drv_cc);
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}
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+ /* Early init PCIE core */
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+ core = bcma_find_core(bus, BCMA_CORE_PCIE);
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+ if (core) {
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+ bus->drv_pci[0].core = core;
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+ bcma_core_pci_early_init(&bus->drv_pci[0]);
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+ }
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+
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/* Cores providing flash access go before SPROM init */
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list_for_each_entry(core, &bus->cores, list) {
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if (bcma_is_core_needed_early(core->id.id))
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@@ -459,7 +481,6 @@ int bcma_bus_register(struct bcma_bus *b
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void bcma_bus_unregister(struct bcma_bus *bus)
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{
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- struct bcma_device *cores[3];
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int err;
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err = bcma_gpio_unregister(&bus->drv_cc);
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@@ -470,46 +491,23 @@ void bcma_bus_unregister(struct bcma_bus
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bcma_core_chipcommon_b_free(&bus->drv_cc_b);
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- cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
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- cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
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- cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
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-
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bcma_unregister_cores(bus);
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-
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- kfree(cores[2]);
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- kfree(cores[1]);
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- kfree(cores[0]);
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}
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-int __init bcma_bus_early_register(struct bcma_bus *bus,
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- struct bcma_device *core_cc,
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- struct bcma_device *core_mips)
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+/*
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+ * This is a special version of bus registration function designed for SoCs.
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+ * It scans bus and performs basic initialization of main cores only.
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+ * Please note it requires memory allocation, however it won't try to sleep.
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+ */
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+int __init bcma_bus_early_register(struct bcma_bus *bus)
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{
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int err;
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struct bcma_device *core;
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- struct bcma_device_id match;
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-
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- match.manuf = BCMA_MANUF_BCM;
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- match.id = bcma_cc_core_id(bus);
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- match.class = BCMA_CL_SIM;
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- match.rev = BCMA_ANY_REV;
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- /* Scan for chip common core */
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- err = bcma_bus_scan_early(bus, &match, core_cc);
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- if (err) {
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- bcma_err(bus, "Failed to scan for common core: %d\n", err);
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- return -1;
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- }
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-
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- match.manuf = BCMA_MANUF_MIPS;
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- match.id = BCMA_CORE_MIPS_74K;
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- match.class = BCMA_CL_SIM;
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- match.rev = BCMA_ANY_REV;
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-
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- /* Scan for mips core */
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- err = bcma_bus_scan_early(bus, &match, core_mips);
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+ /* Scan for devices (cores) */
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+ err = bcma_bus_scan(bus);
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if (err) {
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- bcma_err(bus, "Failed to scan for mips core: %d\n", err);
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+ bcma_err(bus, "Failed to scan bus: %d\n", err);
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return -1;
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}
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--- a/drivers/bcma/scan.c
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+++ b/drivers/bcma/scan.c
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@@ -435,15 +435,12 @@ static int bcma_get_next_core(struct bcm
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return 0;
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}
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-void bcma_init_bus(struct bcma_bus *bus)
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||
|
+void bcma_detect_chip(struct bcma_bus *bus)
|
||
|
{
|
||
|
s32 tmp;
|
||
|
struct bcma_chipinfo *chipinfo = &(bus->chipinfo);
|
||
|
char chip_id[8];
|
||
|
|
||
|
- INIT_LIST_HEAD(&bus->cores);
|
||
|
- bus->nr_cores = 0;
|
||
|
-
|
||
|
bcma_scan_switch_core(bus, BCMA_ADDR_BASE);
|
||
|
|
||
|
tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID);
|
||
|
@@ -464,6 +461,10 @@ int bcma_bus_scan(struct bcma_bus *bus)
|
||
|
|
||
|
int err, core_num = 0;
|
||
|
|
||
|
+ /* Skip if bus was already scanned (e.g. during early register) */
|
||
|
+ if (bus->nr_cores)
|
||
|
+ return 0;
|
||
|
+
|
||
|
erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM);
|
||
|
if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
|
||
|
eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE);
|
||
|
@@ -519,64 +520,6 @@ int bcma_bus_scan(struct bcma_bus *bus)
|
||
|
out:
|
||
|
if (bus->hosttype == BCMA_HOSTTYPE_SOC)
|
||
|
iounmap(eromptr);
|
||
|
-
|
||
|
- return err;
|
||
|
-}
|
||
|
-
|
||
|
-int __init bcma_bus_scan_early(struct bcma_bus *bus,
|
||
|
- struct bcma_device_id *match,
|
||
|
- struct bcma_device *core)
|
||
|
-{
|
||
|
- u32 erombase;
|
||
|
- u32 __iomem *eromptr, *eromend;
|
||
|
-
|
||
|
- int err = -ENODEV;
|
||
|
- int core_num = 0;
|
||
|
-
|
||
|
- erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM);
|
||
|
- if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
|
||
|
- eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE);
|
||
|
- if (!eromptr)
|
||
|
- return -ENOMEM;
|
||
|
- } else {
|
||
|
- eromptr = bus->mmio;
|
||
|
- }
|
||
|
-
|
||
|
- eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32);
|
||
|
-
|
||
|
- bcma_scan_switch_core(bus, erombase);
|
||
|
-
|
||
|
- while (eromptr < eromend) {
|
||
|
- memset(core, 0, sizeof(*core));
|
||
|
- INIT_LIST_HEAD(&core->list);
|
||
|
- core->bus = bus;
|
||
|
-
|
||
|
- err = bcma_get_next_core(bus, &eromptr, match, core_num, core);
|
||
|
- if (err == -ENODEV) {
|
||
|
- core_num++;
|
||
|
- continue;
|
||
|
- } else if (err == -ENXIO)
|
||
|
- continue;
|
||
|
- else if (err == -ESPIPE)
|
||
|
- break;
|
||
|
- else if (err < 0)
|
||
|
- goto out;
|
||
|
-
|
||
|
- core->core_index = core_num++;
|
||
|
- bus->nr_cores++;
|
||
|
- bcma_info(bus, "Core %d found: %s (manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
|
||
|
- core->core_index, bcma_device_name(&core->id),
|
||
|
- core->id.manuf, core->id.id, core->id.rev,
|
||
|
- core->id.class);
|
||
|
-
|
||
|
- list_add_tail(&core->list, &bus->cores);
|
||
|
- err = 0;
|
||
|
- break;
|
||
|
- }
|
||
|
-
|
||
|
-out:
|
||
|
- if (bus->hosttype == BCMA_HOSTTYPE_SOC)
|
||
|
- iounmap(eromptr);
|
||
|
|
||
|
return err;
|
||
|
}
|
||
|
--- a/drivers/bcma/sprom.c
|
||
|
+++ b/drivers/bcma/sprom.c
|
||
|
@@ -579,7 +579,8 @@ int bcma_sprom_get(struct bcma_bus *bus)
|
||
|
u16 offset = BCMA_CC_SPROM;
|
||
|
u16 *sprom;
|
||
|
size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4,
|
||
|
- SSB_SPROMSIZE_WORDS_R10, };
|
||
|
+ SSB_SPROMSIZE_WORDS_R10,
|
||
|
+ SSB_SPROMSIZE_WORDS_R11, };
|
||
|
int i, err = 0;
|
||
|
|
||
|
if (!bus->drv_cc.core)
|
||
|
--- a/include/linux/bcma/bcma.h
|
||
|
+++ b/include/linux/bcma/bcma.h
|
||
![]()
8 years ago
|
@@ -319,6 +319,7 @@ struct bcma_bus {
|
||
![]()
10 years ago
|
const struct bcma_host_ops *ops;
|
||
|
|
||
|
enum bcma_hosttype hosttype;
|
||
|
+ bool host_is_pcie2; /* Used for BCMA_HOSTTYPE_PCI only */
|
||
|
union {
|
||
|
/* Pointer to the PCI bus (only for BCMA_HOSTTYPE_PCI) */
|
||
|
struct pci_dev *host_pci;
|
||
|
--- a/include/linux/bcma/bcma_driver_pci.h
|
||
|
+++ b/include/linux/bcma/bcma_driver_pci.h
|
||
|
@@ -223,6 +223,7 @@ struct bcma_drv_pci_host {
|
||
|
|
||
|
struct bcma_drv_pci {
|
||
|
struct bcma_device *core;
|
||
|
+ u8 early_setup_done:1;
|
||
|
u8 setup_done:1;
|
||
|
u8 hostmode:1;
|
||
|
|
||
|
@@ -237,6 +238,7 @@ struct bcma_drv_pci {
|
||
|
#define pcicore_write16(pc, offset, val) bcma_write16((pc)->core, offset, val)
|
||
|
#define pcicore_write32(pc, offset, val) bcma_write32((pc)->core, offset, val)
|
||
|
|
||
|
+extern void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
|
||
|
extern void 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);
|
||
|
--- a/include/linux/bcma/bcma_regs.h
|
||
|
+++ b/include/linux/bcma/bcma_regs.h
|
||
|
@@ -64,6 +64,8 @@
|
||
|
#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 */
|
||
|
|
||
|
+#define BCMA_PCIE2_BAR0_WIN2 0x70
|
||
|
+
|
||
|
/* SiliconBackplane Address Map.
|
||
|
* All regions may not exist on all chips.
|
||
|
*/
|
||
|
--- a/include/linux/bcma/bcma_soc.h
|
||
|
+++ b/include/linux/bcma/bcma_soc.h
|
||
|
@@ -5,8 +5,6 @@
|
||
|
|
||
|
struct bcma_soc {
|
||
|
struct bcma_bus bus;
|
||
|
- struct bcma_device core_cc;
|
||
|
- struct bcma_device core_mips;
|
||
|
};
|
||
|
|
||
|
int __init bcma_host_soc_register(struct bcma_soc *soc);
|
||
|
--- a/include/linux/ssb/ssb_regs.h
|
||
|
+++ b/include/linux/ssb/ssb_regs.h
|
||
|
@@ -173,6 +173,7 @@
|
||
|
#define SSB_SPROMSIZE_BYTES_R123 (SSB_SPROMSIZE_WORDS_R123 * sizeof(u16))
|
||
|
#define SSB_SPROMSIZE_BYTES_R4 (SSB_SPROMSIZE_WORDS_R4 * sizeof(u16))
|
||
|
#define SSB_SPROMSIZE_WORDS_R10 230
|
||
|
+#define SSB_SPROMSIZE_WORDS_R11 234
|
||
|
#define SSB_SPROM_BASE1 0x1000
|
||
|
#define SSB_SPROM_BASE31 0x0800
|
||
|
#define SSB_SPROM_REVISION 0x007E
|