brcm47xx: sprom for nvram parsing

This adds support for parsing sprom form nvram for sprom version form 1 to 9.
It also adds sprom from nvram support for devices on the bcma bus.

SVN-Revision: 30638

1 files changed, 94 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.2/199-MIPS-BCM47XX-provide-sprom-to-bcma-bus.patch b/target/linux/brcm47xx/patches-3.2/199-MIPS-BCM47XX-provide-sprom-to-bcma-bus.patch
new file mode 100644
index 0000000000..e3d2527929
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.2/199-MIPS-BCM47XX-provide-sprom-to-bcma-bus.patch
@@ -0,0 +1,94 @@
+From 112b2e12edda60f495b57e8a1d85eb95e2662845 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Thu, 16 Feb 2012 23:44:26 +0100
+Subject: [PATCH 199/202] MIPS: BCM47XX: provide sprom to bcma bus
+
+On SoCs the sprom is often stored in nvram in the flashchip. This patch
+registers a sprom fallback callback handler in bcma and provides the
+sprom needed for this device.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/mips/bcm47xx/setup.c |   39 +++++++++++++++++++++++++++++++++++----
+ 1 files changed, 35 insertions(+), 4 deletions(-)
+
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -3,7 +3,7 @@
+  *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+  *  Copyright (C) 2006 Michael Buesch <m@bues.ch>
+  *  Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
+- *  Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
++ *  Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
+  *
+  *  This program is free software; you can redistribute  it and/or modify it
+  *  under  the terms of  the GNU General  Public License as published by the
+@@ -91,7 +91,7 @@ static void bcm47xx_machine_halt(void)
+ }
+ 
+ #ifdef CONFIG_BCM47XX_SSB
+-static int bcm47xx_get_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
++static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
+ {
+ 	char prefix[10];
+ 
+@@ -108,7 +108,7 @@ static int bcm47xx_get_sprom(struct ssb_
+ }
+ 
+ static int bcm47xx_get_invariants(struct ssb_bus *bus,
+-				   struct ssb_init_invariants *iv)
++				  struct ssb_init_invariants *iv)
+ {
+ 	char buf[20];
+ 
+@@ -163,7 +163,7 @@ static void __init bcm47xx_register_ssb(
+ 	char buf[100];
+ 	struct ssb_mipscore *mcore;
+ 
+-	err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom);
++	err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb);
+ 	if (err)
+ 		printk(KERN_WARNING "bcm47xx: someone else already registered"
+ 			" a ssb SPROM callback handler (err %d)\n", err);
+@@ -197,10 +197,41 @@ static void __init bcm47xx_register_ssb(
+ #endif
+ 
+ #ifdef CONFIG_BCM47XX_BCMA
++static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
++{
++	char prefix[10];
++	struct bcma_device *core;
++
++	if (bus->hosttype == BCMA_HOSTTYPE_PCI) {
++		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
++			 bus->host_pci->bus->number + 1,
++			 PCI_SLOT(bus->host_pci->devfn));
++		bcm47xx_fill_sprom(out, prefix);
++		return 0;
++	} else if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
++		bcm47xx_fill_sprom_ethernet(out, NULL);
++		core = bcma_find_core(bus, BCMA_CORE_80211);
++		if (core) {
++			snprintf(prefix, sizeof(prefix), "sb/%u/",
++				 core->core_index);
++			bcm47xx_fill_sprom(out, prefix);
++		}
++		return 0;
++	} else {
++		printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
++		return -EINVAL;
++	}
++}
++
+ static void __init bcm47xx_register_bcma(void)
+ {
+ 	int err;
+ 
++	err = bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma);
++	if (err)
++		printk(KERN_WARNING "bcm47xx: someone else already registered"
++			" a bcma SPROM callback handler (err %d)\n", err);
++
+ 	err = bcma_host_soc_register(&bcm47xx_bus.bcma);
+ 	if (err)
+ 		panic("Failed to initialize BCMA bus (err %d)\n", err);