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