OpenWrt – Rev 1
?pathlinks?
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -23,22 +23,18 @@ struct bcma_bus;
bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
int timeout);
void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core);
+void bcma_init_bus(struct bcma_bus *bus);
int 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);
+int __init bcma_bus_early_register(struct bcma_bus *bus);
#ifdef CONFIG_PM
int bcma_bus_suspend(struct bcma_bus *bus);
int bcma_bus_resume(struct bcma_bus *bus);
#endif
/* scan.c */
+void bcma_detect_chip(struct bcma_bus *bus);
int bcma_bus_scan(struct bcma_bus *bus);
-int __init bcma_bus_scan_early(struct bcma_bus *bus,
- struct bcma_device_id *match,
- struct bcma_device *core);
-void bcma_init_bus(struct bcma_bus *bus);
/* sprom.c */
int bcma_sprom_get(struct bcma_bus *bus);
@@ -109,6 +105,14 @@ extern int bcma_chipco_watchdog_register
#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
+#else
+static inline bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
+{
+ return false;
+}
+static inline void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
+{
+}
#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
#ifdef CONFIG_BCMA_DRIVER_GPIO
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -79,7 +79,9 @@ static int bcma_chipco_watchdog_ticks_pe
if (cc->capabilities & BCMA_CC_CAP_PMU) {
if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
- /* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP clock */
+ /* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP
+ * clock
+ */
return bcma_chipco_get_alp_clock(cc) / 4000;
else
/* based on 32KHz ILP clock */
@@ -97,7 +99,8 @@ int bcma_chipco_watchdog_register(struct
wdt.driver_data = cc;
wdt.timer_set = bcma_chipco_watchdog_timer_set_wdt;
wdt.timer_set_ms = bcma_chipco_watchdog_timer_set_ms_wdt;
- wdt.max_timer_ms = bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
+ wdt.max_timer_ms =
+ bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
cc->core->bus->num, &wdt,
@@ -175,7 +178,6 @@ void bcma_core_chipcommon_init(struct bc
u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
{
u32 maxt;
- enum bcma_clkmode clkmode;
maxt = bcma_chipco_watchdog_get_max_timer(cc);
if (cc->capabilities & BCMA_CC_CAP_PMU) {
@@ -185,8 +187,13 @@ u32 bcma_chipco_watchdog_timer_set(struc
ticks = maxt;
bcma_cc_write32(cc, BCMA_CC_PMU_WATCHDOG, ticks);
} else {
- clkmode = ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC;
- bcma_core_set_clockmode(cc->core, clkmode);
+ struct bcma_bus *bus = cc->core->bus;
+
+ if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4707 &&
+ bus->chipinfo.id != BCMA_CHIP_ID_BCM53018)
+ bcma_core_set_clockmode(cc->core,
+ ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC);
+
if (ticks > maxt)
ticks = maxt;
/* instant NMI */
@@ -335,7 +342,8 @@ void bcma_chipco_serial_init(struct bcma
| BCMA_CC_CORECTL_UARTCLKEN);
}
} else {
- bcma_err(cc->core->bus, "serial not supported on this device ccrev: 0x%x\n", ccrev);
+ bcma_err(cc->core->bus, "serial not supported on this device ccrev: 0x%x\n",
+ ccrev);
return;
}
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -145,6 +145,47 @@ static u16 bcma_pcie_mdio_writeread(stru
}
/**************************************************
+ * Early init.
+ **************************************************/
+
+static void bcma_core_pci_fixcfg(struct bcma_drv_pci *pc)
+{
+ struct bcma_device *core = pc->core;
+ u16 val16, core_index;
+ uint regoff;
+
+ regoff = BCMA_CORE_PCI_SPROM(BCMA_CORE_PCI_SPROM_PI_OFFSET);
+ core_index = (u16)core->core_index;
+
+ val16 = pcicore_read16(pc, regoff);
+ if (((val16 & BCMA_CORE_PCI_SPROM_PI_MASK) >> BCMA_CORE_PCI_SPROM_PI_SHIFT)
+ != core_index) {
+ val16 = (core_index << BCMA_CORE_PCI_SPROM_PI_SHIFT) |
+ (val16 & ~BCMA_CORE_PCI_SPROM_PI_MASK);
+ pcicore_write16(pc, regoff, val16);
+ }
+}
+
+/*
+ * Apply some early fixes required before accessing SPROM.
+ * See also si_pci_fixcfg.
+ */
+void bcma_core_pci_early_init(struct bcma_drv_pci *pc)
+{
+ if (pc->early_setup_done)
+ return;
+
+ pc->hostmode = bcma_core_pci_is_in_hostmode(pc);
+ if (pc->hostmode)
+ goto out;
+
+ bcma_core_pci_fixcfg(pc);
+
+out:
+ pc->early_setup_done = true;
+}
+
+/**************************************************
* Workarounds.
**************************************************/
@@ -175,24 +216,6 @@ static void bcma_pcicore_serdes_workarou
tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN);
}
-static void bcma_core_pci_fixcfg(struct bcma_drv_pci *pc)
-{
- struct bcma_device *core = pc->core;
- u16 val16, core_index;
- uint regoff;
-
- regoff = BCMA_CORE_PCI_SPROM(BCMA_CORE_PCI_SPROM_PI_OFFSET);
- core_index = (u16)core->core_index;
-
- val16 = pcicore_read16(pc, regoff);
- if (((val16 & BCMA_CORE_PCI_SPROM_PI_MASK) >> BCMA_CORE_PCI_SPROM_PI_SHIFT)
- != core_index) {
- val16 = (core_index << BCMA_CORE_PCI_SPROM_PI_SHIFT) |
- (val16 & ~BCMA_CORE_PCI_SPROM_PI_MASK);
- pcicore_write16(pc, regoff, val16);
- }
-}
-
/* Fix MISC config to allow coming out of L2/L3-Ready state w/o PRST */
/* Needs to happen when coming out of 'standby'/'hibernate' */
static void bcma_core_pci_config_fixup(struct bcma_drv_pci *pc)
@@ -216,7 +239,6 @@ static void bcma_core_pci_config_fixup(s
static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
{
- bcma_core_pci_fixcfg(pc);
bcma_pcicore_serdes_workaround(pc);
bcma_core_pci_config_fixup(pc);
}
@@ -226,13 +248,11 @@ void bcma_core_pci_init(struct bcma_drv_
if (pc->setup_done)
return;
-#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
- pc->hostmode = bcma_core_pci_is_in_hostmode(pc);
+ bcma_core_pci_early_init(pc);
+
if (pc->hostmode)
bcma_core_pci_hostmode_init(pc);
-#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
-
- if (!pc->hostmode)
+ else
bcma_core_pci_clientmode_init(pc);
}
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -13,10 +13,12 @@
static void bcma_host_pci_switch_core(struct bcma_device *core)
{
+ int win2 = core->bus->host_is_pcie2 ?
+ BCMA_PCIE2_BAR0_WIN2 : BCMA_PCI_BAR0_WIN2;
+
pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN,
core->addr);
- pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN2,
- core->wrap);
+ pci_write_config_dword(core->bus->host_pci, win2, core->wrap);
core->bus->mapped_core = core;
bcma_debug(core->bus, "Switched to core: 0x%X\n", core->id.id);
}
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -193,7 +193,7 @@ int __init bcma_host_soc_init(struct bcm
int err;
/* Scan bus and initialize it */
- err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
+ err = bcma_bus_early_register(bus);
if (err)
iounmap(bus->mmio);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -268,6 +268,18 @@ void bcma_prepare_core(struct bcma_bus *
}
}
+void bcma_init_bus(struct bcma_bus *bus)
+{
+ mutex_lock(&bcma_buses_mutex);
+ bus->num = bcma_bus_next_num++;
+ mutex_unlock(&bcma_buses_mutex);
+
+ INIT_LIST_HEAD(&bus->cores);
+ bus->nr_cores = 0;
+
+ bcma_detect_chip(bus);
+}
+
static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
{
int err;
@@ -356,12 +368,19 @@ static void bcma_unregister_cores(struct
struct bcma_device *core, *tmp;
list_for_each_entry_safe(core, tmp, &bus->cores, list) {
+ if (!core->dev_registered)
+ continue;
list_del(&core->list);
- if (core->dev_registered)
- device_unregister(&core->dev);
+ device_unregister(&core->dev);
}
if (bus->hosttype == BCMA_HOSTTYPE_SOC)
platform_device_unregister(bus->drv_cc.watchdog);
+
+ /* Now noone uses internally-handled cores, we can free them */
+ list_for_each_entry_safe(core, tmp, &bus->cores, list) {
+ list_del(&core->list);
+ kfree(core);
+ }
}
int bcma_bus_register(struct bcma_bus *bus)
@@ -369,10 +388,6 @@ int bcma_bus_register(struct bcma_bus *b
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) {
@@ -387,6 +402,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_chipcommon_early_init(&bus->drv_cc);
}
+ /* Early init PCIE core */
+ core = bcma_find_core(bus, BCMA_CORE_PCIE);
+ if (core) {
+ bus->drv_pci[0].core = core;
+ bcma_core_pci_early_init(&bus->drv_pci[0]);
+ }
+
/* Cores providing flash access go before SPROM init */
list_for_each_entry(core, &bus->cores, list) {
if (bcma_is_core_needed_early(core->id.id))
@@ -459,7 +481,6 @@ int bcma_bus_register(struct bcma_bus *b
void bcma_bus_unregister(struct bcma_bus *bus)
{
- struct bcma_device *cores[3];
int err;
err = bcma_gpio_unregister(&bus->drv_cc);
@@ -470,46 +491,23 @@ void bcma_bus_unregister(struct bcma_bus
bcma_core_chipcommon_b_free(&bus->drv_cc_b);
- cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
- cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
- cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
-
bcma_unregister_cores(bus);
-
- kfree(cores[2]);
- kfree(cores[1]);
- kfree(cores[0]);
}
-int __init bcma_bus_early_register(struct bcma_bus *bus,
- struct bcma_device *core_cc,
- struct bcma_device *core_mips)
+/*
+ * This is a special version of bus registration function designed for SoCs.
+ * It scans bus and performs basic initialization of main cores only.
+ * Please note it requires memory allocation, however it won't try to sleep.
+ */
+int __init bcma_bus_early_register(struct bcma_bus *bus)
{
int err;
struct bcma_device *core;
- struct bcma_device_id match;
-
- match.manuf = BCMA_MANUF_BCM;
- match.id = bcma_cc_core_id(bus);
- match.class = BCMA_CL_SIM;
- match.rev = BCMA_ANY_REV;
- /* Scan for chip common core */
- err = bcma_bus_scan_early(bus, &match, core_cc);
- if (err) {
- bcma_err(bus, "Failed to scan for common core: %d\n", err);
- return -1;
- }
-
- match.manuf = BCMA_MANUF_MIPS;
- match.id = BCMA_CORE_MIPS_74K;
- match.class = BCMA_CL_SIM;
- match.rev = BCMA_ANY_REV;
-
- /* Scan for mips core */
- err = bcma_bus_scan_early(bus, &match, core_mips);
+ /* Scan for devices (cores) */
+ err = bcma_bus_scan(bus);
if (err) {
- bcma_err(bus, "Failed to scan for mips core: %d\n", err);
+ bcma_err(bus, "Failed to scan bus: %d\n", err);
return -1;
}
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -435,15 +435,12 @@ static int bcma_get_next_core(struct bcm
return 0;
}
-void bcma_init_bus(struct bcma_bus *bus)
+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
@@ -319,6 +319,7 @@ struct bcma_bus {
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