brcm47xx: initial 2.6.39 support for brcm47xx

Thank you Peter Wagner for the patch


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27008 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 146 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-2.6.39/031-ssb-add-callback-for-sprom.patch b/target/linux/brcm47xx/patches-2.6.39/031-ssb-add-callback-for-sprom.patch
new file mode 100644
index 0000000000..bf19ae0b98
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.39/031-ssb-add-callback-for-sprom.patch
@@ -0,0 +1,146 @@
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -643,6 +643,17 @@ static struct ssb_sprom bcm63xx_sprom =
+ 	.boardflags_lo		= 0x2848,
+ 	.boardflags_hi		= 0x0000,
+ };
++
++int bcm63xx_get_fallback_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
++{
++	if (bus->bustype == SSB_BUSTYPE_PCI) {
++		memcpy(out, &bcm63xx_sprom, sizeof(struct ssb_sprom));
++		return 0;
++	} else {
++		printk(KERN_ERR PFX "unable to fill SPROM for given bustype.\n");
++		return -EINVAL;
++	}
++}
+ #endif
+ 
+ /*
+@@ -793,8 +804,9 @@ void __init board_prom_init(void)
+ 	if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
+ 		memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
+ 		memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
+-		if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
+-			printk(KERN_ERR "failed to register fallback SPROM\n");
++		if (ssb_arch_register_fallback_sprom(
++				&bcm63xx_get_fallback_sprom) < 0)
++			printk(KERN_ERR PFX "failed to register fallback SPROM\n");
+ 	}
+ #endif
+ }
+--- a/drivers/ssb/pci.c
++++ b/drivers/ssb/pci.c
+@@ -662,7 +662,6 @@ static int sprom_extract(struct ssb_bus
+ static int ssb_pci_sprom_get(struct ssb_bus *bus,
+ 			     struct ssb_sprom *sprom)
+ {
+-	const struct ssb_sprom *fallback;
+ 	int err;
+ 	u16 *buf;
+ 
+@@ -707,10 +706,17 @@ static int ssb_pci_sprom_get(struct ssb_
+ 		if (err) {
+ 			/* All CRC attempts failed.
+ 			 * Maybe there is no SPROM on the device?
+-			 * If we have a fallback, use that. */
+-			fallback = ssb_get_fallback_sprom();
+-			if (fallback) {
+-				memcpy(sprom, fallback, sizeof(*sprom));
++			 * Now we ask the arch code if there is some sprom
++			 * avaliable for this device in some other storage */
++			err = ssb_fill_sprom_with_fallback(bus, sprom);
++			if (err) {
++				ssb_printk(KERN_WARNING PFX "WARNING: Using"
++					   " fallback SPROM failed (err %d)\n",
++					   err);
++			} else {
++				ssb_dprintk(KERN_DEBUG PFX "Using SPROM"
++					    " revision %d provided by"
++					    " platform.\n", sprom->revision);
+ 				err = 0;
+ 				goto out_free;
+ 			}
+--- a/drivers/ssb/sprom.c
++++ b/drivers/ssb/sprom.c
+@@ -17,7 +17,7 @@
+ #include <linux/slab.h>
+ 
+ 
+-static const struct ssb_sprom *fallback_sprom;
++static int(*get_fallback_sprom)(struct ssb_bus *dev, struct ssb_sprom *out);
+ 
+ 
+ static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len,
+@@ -145,13 +145,14 @@ out:
+ }
+ 
+ /**
+- * ssb_arch_set_fallback_sprom - Set a fallback SPROM for use if no SPROM is found.
++ * ssb_arch_register_fallback_sprom - Registers a method providing a fallback
++ * SPROM if no SPROM is found.
+  *
+- * @sprom: The SPROM data structure to register.
++ * @sprom_callback: The callbcak function.
+  *
+- * With this function the architecture implementation may register a fallback
+- * SPROM data structure. The fallback is only used for PCI based SSB devices,
+- * where no valid SPROM can be found in the shadow registers.
++ * With this function the architecture implementation may register a callback
++ * handler which wills the SPROM data structure. The fallback is only used for
++ * PCI based SSB devices, where no valid SPROM can be found in the shadow registers.
+  *
+  * This function is useful for weird architectures that have a half-assed SSB device
+  * hardwired to their PCI bus.
+@@ -163,18 +164,21 @@ out:
+  *
+  * This function is available for architecture code, only. So it is not exported.
+  */
+-int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom)
++int ssb_arch_register_fallback_sprom(int (*sprom_callback)(struct ssb_bus *bus, struct ssb_sprom *out))
+ {
+-	if (fallback_sprom)
++	if (get_fallback_sprom)
+ 		return -EEXIST;
+-	fallback_sprom = sprom;
++	get_fallback_sprom = sprom_callback;
+ 
+ 	return 0;
+ }
+ 
+-const struct ssb_sprom *ssb_get_fallback_sprom(void)
++int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, struct ssb_sprom *out)
+ {
+-	return fallback_sprom;
++	if (!get_fallback_sprom)
++		return -ENOENT;
++
++	return get_fallback_sprom(bus, out);
+ }
+ 
+ /* http://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */
+--- a/drivers/ssb/ssb_private.h
++++ b/drivers/ssb/ssb_private.h
+@@ -171,7 +171,7 @@ ssize_t ssb_attr_sprom_store(struct ssb_
+ 			     const char *buf, size_t count,
+ 			     int (*sprom_check_crc)(const u16 *sprom, size_t size),
+ 			     int (*sprom_write)(struct ssb_bus *bus, const u16 *sprom));
+-extern const struct ssb_sprom *ssb_get_fallback_sprom(void);
++extern int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, struct ssb_sprom *out);
+ 
+ 
+ /* core.c */
+--- a/include/linux/ssb/ssb.h
++++ b/include/linux/ssb/ssb.h
+@@ -404,7 +404,9 @@ extern bool ssb_is_sprom_available(struc
+ 
+ /* Set a fallback SPROM.
+  * See kdoc at the function definition for complete documentation. */
+-extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom);
++extern int ssb_arch_register_fallback_sprom(
++		int (*sprom_callback)(struct ssb_bus *bus,
++		struct ssb_sprom *out));
+ 
+ /* Suspend a SSB bus.
+  * Call this from the parent bus suspend routine. */