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author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-04-13 19:35:40 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2012-04-13 19:35:40 +0000 |
commit | 6af575967c780fa41029bdb64fdd68646ab516d1 (patch) | |
tree | bf5fa402a077278c773200cb2aa941cc0b9e6883 /target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch | |
parent | 3f240440c76765426018151ab3ea019547108326 (diff) | |
download | upstream-6af575967c780fa41029bdb64fdd68646ab516d1.tar.gz upstream-6af575967c780fa41029bdb64fdd68646ab516d1.tar.bz2 upstream-6af575967c780fa41029bdb64fdd68646ab516d1.zip |
kernel: update bcma and ssb to version master-2012-04-12 from wireless-testing
SVN-Revision: 31278
Diffstat (limited to 'target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch b/target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch deleted file mode 100644 index 296e10ae10..0000000000 --- a/target/linux/brcm47xx/patches-3.2/196-bcma-add-support-for-sprom-not-found-on-the-device.patch +++ /dev/null @@ -1,125 +0,0 @@ - ---- a/drivers/bcma/sprom.c -+++ b/drivers/bcma/sprom.c -@@ -2,6 +2,8 @@ - * Broadcom specific AMBA - * SPROM reading - * -+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> -+ * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -@@ -16,6 +18,45 @@ - - #define SPOFF(offset) ((offset) / sizeof(u16)) - -+static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out); -+ -+/** -+ * bcma_arch_register_fallback_sprom - Registers a method providing a -+ * fallback SPROM if no SPROM is found. -+ * -+ * @sprom_callback: The callback function. -+ * -+ * With this function the architecture implementation may register a -+ * callback handler which fills the SPROM data structure. The fallback is -+ * used for PCI based BCMA devices, where no valid SPROM can be found -+ * in the shadow registers and to provide the SPROM for SoCs where BCMA is -+ * to controll the system bus. -+ * -+ * This function is useful for weird architectures that have a half-assed -+ * BCMA device hardwired to their PCI bus. -+ * -+ * This function is available for architecture code, only. So it is not -+ * exported. -+ */ -+int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus, -+ struct ssb_sprom *out)) -+{ -+ if (get_fallback_sprom) -+ return -EEXIST; -+ get_fallback_sprom = sprom_callback; -+ -+ return 0; -+} -+ -+static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, -+ struct ssb_sprom *out) -+{ -+ if (!get_fallback_sprom) -+ return -ENOENT; -+ -+ return get_fallback_sprom(bus, out); -+} -+ - /************************************************** - * R/W ops. - **************************************************/ -@@ -205,23 +246,43 @@ static void bcma_sprom_extract_r8(struct - SSB_SROM8_FEM_ANTSWLUT) >> SSB_SROM8_FEM_ANTSWLUT_SHIFT; - } - -+static bool bcma_is_sprom_available(struct bcma_bus *bus) -+{ -+ u32 sromctrl; -+ -+ if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) -+ return false; -+ -+ if (bus->drv_cc.core->id.rev >= 32) { -+ sromctrl = bcma_read32(bus->drv_cc.core, BCMA_CC_SROM_CONTROL); -+ return sromctrl & BCMA_CC_SROM_CONTROL_PRESENT; -+ } -+ return true; -+} -+ - int bcma_sprom_get(struct bcma_bus *bus) - { - u16 offset; - u16 *sprom; -- u32 sromctrl; - int err = 0; - - if (!bus->drv_cc.core) - return -EOPNOTSUPP; - -- if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) -- return -ENOENT; -- -- if (bus->drv_cc.core->id.rev >= 32) { -- sromctrl = bcma_read32(bus->drv_cc.core, BCMA_CC_SROM_CONTROL); -- if (!(sromctrl & BCMA_CC_SROM_CONTROL_PRESENT)) -- return -ENOENT; -+ if (!bcma_is_sprom_available(bus)) { -+ /* -+ * Maybe there is no SPROM on the device? -+ * Now we ask the arch code if there is some sprom -+ * available for this device in some other storage. -+ */ -+ err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); -+ if (err) { -+ pr_warn("Using fallback SPROM failed (err %d)\n", err); -+ } else { -+ pr_debug("Using SPROM revision %d provided by" -+ " platform.\n", bus->sprom.revision); -+ return 0; -+ } - } - - sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), ---- a/include/linux/bcma/bcma.h -+++ b/include/linux/bcma/bcma.h -@@ -177,6 +177,12 @@ int __bcma_driver_register(struct bcma_d - - extern void bcma_driver_unregister(struct bcma_driver *drv); - -+/* Set a fallback SPROM. -+ * See kdoc at the function definition for complete documentation. */ -+extern int bcma_arch_register_fallback_sprom( -+ int (*sprom_callback)(struct bcma_bus *bus, -+ struct ssb_sprom *out)); -+ - struct bcma_bus { - /* The MMIO area. */ - void __iomem *mmio; |