[brcm47xx]: bcma: initialize sprom earlier

The chip common and the PCIe code are accessing the sprom struct which
is not filled when these cores are initialized. Fix this by adding an
early initialize and fill the sprom struct before accessing it in other
code.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33600 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 222 insertions, 4 deletions

diff --git a/target/linux/brcm47xx/patches-3.3/201-bcma-just-do-the-necessary-things-in-early-register.patch b/target/linux/brcm47xx/patches-3.3/201-bcma-just-do-the-necessary-things-in-early-register.patch
new file mode 100644
index 0000000000..6ef5ecd51d
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/201-bcma-just-do-the-necessary-things-in-early-register.patch
@@ -0,0 +1,181 @@
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/driver_chipcommon.c
+@@ -22,12 +22,9 @@ static inline u32 bcma_cc_write32_masked
+ 	return value;
+ }
+ 
+-void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
++void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+-	u32 leddc_on = 10;
+-	u32 leddc_off = 90;
+-
+-	if (cc->setup_done)
++	if (cc->early_setup_done)
+ 		return;
+ 
+ 	if (cc->core->id.rev >= 11)
+@@ -36,6 +33,22 @@ void bcma_core_chipcommon_init(struct bc
+ 	if (cc->core->id.rev >= 35)
+ 		cc->capabilities_ext = bcma_cc_read32(cc, BCMA_CC_CAP_EXT);
+ 
++	if (cc->capabilities & BCMA_CC_CAP_PMU)
++		bcma_pmu_early_init(cc);
++
++	cc->early_setup_done = true;
++}
++
++void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
++{
++	u32 leddc_on = 10;
++	u32 leddc_off = 90;
++
++	if (cc->setup_done)
++		return;
++
++	bcma_core_chipcommon_early_init(cc);
++
+ 	if (cc->core->id.rev >= 20) {
+ 		bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
+ 		bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
+--- a/drivers/bcma/driver_chipcommon_pmu.c
++++ b/drivers/bcma/driver_chipcommon_pmu.c
+@@ -141,7 +141,7 @@ void bcma_pmu_workarounds(struct bcma_dr
+ 	}
+ }
+ 
+-void bcma_pmu_init(struct bcma_drv_cc *cc)
++void bcma_pmu_early_init(struct bcma_drv_cc *cc)
+ {
+ 	u32 pmucap;
+ 
+@@ -150,7 +150,10 @@ void bcma_pmu_init(struct bcma_drv_cc *c
+ 
+ 	bcma_debug(cc->core->bus, "Found rev %u PMU (capabilities 0x%08X)\n",
+ 		   cc->pmu.rev, pmucap);
++}
+ 
++void bcma_pmu_init(struct bcma_drv_cc *cc)
++{
+ 	if (cc->pmu.rev == 1)
+ 		bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
+ 			      ~BCMA_CC_PMU_CTL_NOILPONW);
+--- a/drivers/bcma/driver_mips.c
++++ b/drivers/bcma/driver_mips.c
+@@ -222,16 +222,33 @@ static void bcma_core_mips_flash_detect(
+ 	}
+ }
+ 
++void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
++{
++	struct bcma_bus *bus = mcore->core->bus;
++
++	if (mcore->early_setup_done)
++		return;
++
++	bcma_chipco_serial_init(&bus->drv_cc);
++	bcma_core_mips_flash_detect(mcore);
++
++	mcore->early_setup_done = true;
++}
++
+ void bcma_core_mips_init(struct bcma_drv_mips *mcore)
+ {
+ 	struct bcma_bus *bus;
+ 	struct bcma_device *core;
+ 	bus = mcore->core->bus;
+ 
++	if (mcore->setup_done)
++		return;
++
+ 	bcma_info(bus, "Initializing MIPS core...\n");
+ 
+-	if (!mcore->setup_done)
+-		mcore->assigned_irqs = 1;
++	bcma_core_mips_early_init(mcore);
++
++	mcore->assigned_irqs = 1;
+ 
+ 	/* Assign IRQs to all cores on the bus */
+ 	list_for_each_entry(core, &bus->cores, list) {
+@@ -266,10 +283,5 @@ void bcma_core_mips_init(struct bcma_drv
+ 	bcma_info(bus, "IRQ reconfiguration done\n");
+ 	bcma_core_mips_dump_irq(bus);
+ 
+-	if (mcore->setup_done)
+-		return;
+-
+-	bcma_chipco_serial_init(&bus->drv_cc);
+-	bcma_core_mips_flash_detect(mcore);
+ 	mcore->setup_done = true;
+ }
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -247,18 +247,18 @@ int __init bcma_bus_early_register(struc
+ 		return -1;
+ 	}
+ 
+-	/* Init CC core */
++	/* Early init CC core */
+ 	core = bcma_find_core(bus, bcma_cc_core_id(bus));
+ 	if (core) {
+ 		bus->drv_cc.core = core;
+-		bcma_core_chipcommon_init(&bus->drv_cc);
++		bcma_core_chipcommon_early_init(&bus->drv_cc);
+ 	}
+ 
+-	/* Init MIPS core */
++	/* Early init MIPS core */
+ 	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
+ 	if (core) {
+ 		bus->drv_mips.core = core;
+-		bcma_core_mips_init(&bus->drv_mips);
++		bcma_core_mips_early_init(&bus->drv_mips);
+ 	}
+ 
+ 	bcma_info(bus, "Early bus registered\n");
+--- a/include/linux/bcma/bcma_driver_chipcommon.h
++++ b/include/linux/bcma/bcma_driver_chipcommon.h
+@@ -476,6 +476,7 @@ struct bcma_drv_cc {
+ 	u32 capabilities;
+ 	u32 capabilities_ext;
+ 	u8 setup_done:1;
++	u8 early_setup_done:1;
+ 	/* Fast Powerup Delay constant */
+ 	u16 fast_pwrup_delay;
+ 	struct bcma_chipcommon_pmu pmu;
+@@ -510,6 +511,7 @@ struct bcma_drv_cc {
+ 	bcma_cc_write32(cc, offset, (bcma_cc_read32(cc, offset) & (mask)) | (set))
+ 
+ extern void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
++extern void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
+ 
+ extern void bcma_chipco_suspend(struct bcma_drv_cc *cc);
+ extern void bcma_chipco_resume(struct bcma_drv_cc *cc);
+@@ -533,6 +535,7 @@ u32 bcma_chipco_gpio_polarity(struct bcm
+ 
+ /* PMU support */
+ extern void bcma_pmu_init(struct bcma_drv_cc *cc);
++extern void bcma_pmu_early_init(struct bcma_drv_cc *cc);
+ 
+ extern void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset,
+ 				  u32 value);
+--- a/include/linux/bcma/bcma_driver_mips.h
++++ b/include/linux/bcma/bcma_driver_mips.h
+@@ -35,13 +35,16 @@ struct bcma_device;
+ struct bcma_drv_mips {
+ 	struct bcma_device *core;
+ 	u8 setup_done:1;
++	u8 early_setup_done:1;
+ 	unsigned int assigned_irqs;
+ };
+ 
+ #ifdef CONFIG_BCMA_DRIVER_MIPS
+ extern void bcma_core_mips_init(struct bcma_drv_mips *mcore);
++extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
+ #else
+ static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { }
++static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { }
+ #endif
+ 
+ extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore);
diff --git a/target/linux/brcm47xx/patches-3.3/202-bcma-init-sprom-struct-earlier.patch b/target/linux/brcm47xx/patches-3.3/202-bcma-init-sprom-struct-earlier.patch
new file mode 100644
index 0000000000..03540f04cc
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/202-bcma-init-sprom-struct-earlier.patch
@@ -0,0 +1,37 @@
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -165,6 +165,20 @@ int __devinit bcma_bus_register(struct b
+ 		return -1;
+ 	}
+ 
++	/* Early init CC core */
++	core = bcma_find_core(bus, bcma_cc_core_id(bus));
++	if (core) {
++		bus->drv_cc.core = core;
++		bcma_core_chipcommon_early_init(&bus->drv_cc);
++	}
++
++	/* Try to get SPROM */
++	err = bcma_sprom_get(bus);
++	if (err == -ENOENT) {
++		bcma_err(bus, "No SPROM available\n");
++	} else if (err)
++		bcma_err(bus, "Failed to get SPROM: %d\n", err);
++
+ 	/* Init CC core */
+ 	core = bcma_find_core(bus, bcma_cc_core_id(bus));
+ 	if (core) {
+@@ -193,13 +207,6 @@ int __devinit bcma_bus_register(struct b
+ 		bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
+ 	}
+ 
+-	/* Try to get SPROM */
+-	err = bcma_sprom_get(bus);
+-	if (err == -ENOENT) {
+-		bcma_err(bus, "No SPROM available\n");
+-	} else if (err)
+-		bcma_err(bus, "Failed to get SPROM: %d\n", err);
+-
+ 	/* Register found cores */
+ 	bcma_register_cores(bus);
+ 
diff --git a/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
index c8ff6b2635..951c6d40e9 100644
--- a/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
+++ b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
@@ -1,6 +1,6 @@
 --- a/drivers/bcma/driver_chipcommon.c
 +++ b/drivers/bcma/driver_chipcommon.c
-@@ -57,6 +57,8 @@ void bcma_core_chipcommon_init(struct bc
+@@ -70,6 +70,8 @@ void bcma_core_chipcommon_init(struct bc
  			 (leddc_off << BCMA_CC_GPIOTIMER_OFFTIME_SHIFT)));
  	}
  
@@ -9,7 +9,7 @@
  	cc->setup_done = true;
  }
  
-@@ -79,34 +81,81 @@ u32 bcma_chipco_irq_status(struct bcma_d
+@@ -92,34 +94,81 @@ u32 bcma_chipco_irq_status(struct bcma_d
  
  u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask)
  {
@@ -99,7 +99,7 @@
  void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
 --- a/include/linux/bcma/bcma_driver_chipcommon.h
 +++ b/include/linux/bcma/bcma_driver_chipcommon.h
-@@ -494,6 +494,9 @@ struct bcma_drv_cc {
+@@ -495,6 +495,9 @@ struct bcma_drv_cc {
  	int nr_serial_ports;
  	struct bcma_serial_port serial_ports[4];
  #endif /* CONFIG_BCMA_DRIVER_MIPS */
@@ -109,7 +109,7 @@
  };
  
  /* Register access */
-@@ -523,13 +526,22 @@ void bcma_chipco_irq_mask(struct bcma_dr
+@@ -525,13 +528,22 @@ void bcma_chipco_irq_mask(struct bcma_dr
  
  u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask);