ssb: pick SoC invariants code from MIPS BCM47xx arch

There is code in ssb fetching "invariants" that is basically a set of
board specific data. Every host requires its own implementation of
reading function. In ssb we have support for PCI, PCMCIA & SDIO.
For some (historical?) reason code reading "invariants" for SoC was
placed in arch code and provided by a callback. This is not needed
nowadays, so lets move that into ssb. This way we keep all "invariants"
functions in a single module making code cleaner.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 6d38948..c807e32 100644 (file)
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -101,50 +101,13 @@ static void bcm47xx_machine_halt(void)
 }
 
 #ifdef CONFIG_BCM47XX_SSB
-static int bcm47xx_get_invariants(struct ssb_bus *bus,
-                                 struct ssb_init_invariants *iv)
-{
-       char buf[20];
-       int len, err;
-
-       /* Fill boardinfo structure */
-       memset(&iv->boardinfo, 0 , sizeof(struct ssb_boardinfo));
-
-       len = bcm47xx_nvram_getenv("boardvendor", buf, sizeof(buf));
-       if (len > 0) {
-               err = kstrtou16(strim(buf), 0, &iv->boardinfo.vendor);
-               if (err)
-                       pr_warn("Couldn't parse nvram board vendor entry with value \"%s\"\n",
-                               buf);
-       }
-       if (!iv->boardinfo.vendor)
-               iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
-
-       len = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
-       if (len > 0) {
-               err = kstrtou16(strim(buf), 0, &iv->boardinfo.type);
-               if (err)
-                       pr_warn("Couldn't parse nvram board type entry with value \"%s\"\n",
-                               buf);
-       }
-
-       memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
-       bcm47xx_fill_sprom(&iv->sprom, NULL, false);
-
-       if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
-               iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
-
-       return 0;
-}
-
 static void __init bcm47xx_register_ssb(void)
 {
        int err;
        char buf[100];
        struct ssb_mipscore *mcore;
 
-       err = ssb_bus_ssbbus_register(&bcm47xx_bus.ssb, SSB_ENUM_BASE,
-                                     bcm47xx_get_invariants);
+       err = ssb_bus_host_soc_register(&bcm47xx_bus.ssb, SSB_ENUM_BASE);
        if (err)
                panic("Failed to initialize SSB bus (err %d)", err);
 

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index 149214b..0c67586 100644 (file)
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -82,7 +82,7 @@ config SSB_SDIOHOST
 
 config SSB_HOST_SOC
        bool "Support for SSB bus on SoC"
-       depends on SSB
+       depends on SSB && BCM47XX_NVRAM
        help
          Host interface for a SSB directly mapped into memory. This is
          for some Broadcom SoCs from the BCM47xx and BCM53xx lines.

diff --git a/drivers/ssb/host_soc.c b/drivers/ssb/host_soc.c
index c809f25..d62992d 100644 (file)
--- a/drivers/ssb/host_soc.c
+++ b/drivers/ssb/host_soc.c
@@ -8,6 +8,7 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
+#include <linux/bcm47xx_nvram.h>
 #include <linux/ssb/ssb.h>
 
 #include "ssb_private.h"
@@ -171,3 +172,39 @@ const struct ssb_bus_ops ssb_host_soc_ops = {
        .block_write    = ssb_host_soc_block_write,
 #endif
 };
+
+int ssb_host_soc_get_invariants(struct ssb_bus *bus,
+                               struct ssb_init_invariants *iv)
+{
+       char buf[20];
+       int len, err;
+
+       /* Fill boardinfo structure */
+       memset(&iv->boardinfo, 0, sizeof(struct ssb_boardinfo));
+
+       len = bcm47xx_nvram_getenv("boardvendor", buf, sizeof(buf));
+       if (len > 0) {
+               err = kstrtou16(strim(buf), 0, &iv->boardinfo.vendor);
+               if (err)
+                       pr_warn("Couldn't parse nvram board vendor entry with value \"%s\"\n",
+                               buf);
+       }
+       if (!iv->boardinfo.vendor)
+               iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
+
+       len = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
+       if (len > 0) {
+               err = kstrtou16(strim(buf), 0, &iv->boardinfo.type);
+               if (err)
+                       pr_warn("Couldn't parse nvram board type entry with value \"%s\"\n",
+                               buf);
+       }
+
+       memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
+       ssb_fill_sprom_with_fallback(bus, &iv->sprom);
+
+       if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
+               iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
+
+       return 0;
+}

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 5d1e9a0..cde5ff7 100644 (file)
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -762,15 +762,14 @@ EXPORT_SYMBOL(ssb_bus_sdiobus_register);
 #endif /* CONFIG_SSB_PCMCIAHOST */
 
 #ifdef CONFIG_SSB_HOST_SOC
-int ssb_bus_ssbbus_register(struct ssb_bus *bus, unsigned long baseaddr,
-                           ssb_invariants_func_t get_invariants)
+int ssb_bus_host_soc_register(struct ssb_bus *bus, unsigned long baseaddr)
 {
        int err;
 
        bus->bustype = SSB_BUSTYPE_SSB;
        bus->ops = &ssb_host_soc_ops;
 
-       err = ssb_bus_register(bus, get_invariants, baseaddr);
+       err = ssb_bus_register(bus, ssb_host_soc_get_invariants, baseaddr);
        if (!err) {
                ssb_info("Sonics Silicon Backplane found at address 0x%08lX\n",
                         baseaddr);

diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 15bfd5c..c2f5d39 100644 (file)
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -163,6 +163,9 @@ static inline int ssb_sdio_init(struct ssb_bus *bus)
 
 #ifdef CONFIG_SSB_HOST_SOC
 extern const struct ssb_bus_ops ssb_host_soc_ops;
+
+extern int ssb_host_soc_get_invariants(struct ssb_bus *bus,
+                                      struct ssb_init_invariants *iv);
 #endif
 
 /* scan.c */

diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index c3d1a52..26a0b3c 100644 (file)
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -524,13 +524,9 @@ struct ssb_init_invariants {
 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
                                     struct ssb_init_invariants *iv);
 
-/* Register a SSB system bus. get_invariants() is called after the
- * basic system devices are initialized.
- * The invariants are usually fetched from some NVRAM.
- * Put the invariants into the struct pointed to by iv. */
-extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
-                                  unsigned long baseaddr,
-                                  ssb_invariants_func_t get_invariants);
+/* Register SoC bus. */
+extern int ssb_bus_host_soc_register(struct ssb_bus *bus,
+                                    unsigned long baseaddr);
 #ifdef CONFIG_SSB_PCIHOST
 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
                                   struct pci_dev *host_pci);