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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>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
wifi-calibration
Hauke Mehrtens 2012-02-28 00:56:14 +01:00 committed by John W. Linville
parent 019eee2e34
commit f384b3dddc
1 changed files with 35 additions and 4 deletions
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39
arch/mips/bcm47xx/setup.c
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@ -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
@ -85,7 +85,7 @@ 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];
@ -102,7 +102,7 @@ static int bcm47xx_get_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
}
static int bcm47xx_get_invariants(struct ssb_bus *bus,
struct ssb_init_invariants *iv)
struct ssb_init_invariants *iv)
{
char buf[20];
@ -132,7 +132,7 @@ static void __init bcm47xx_register_ssb(void)
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);
@ -159,10 +159,41 @@ static void __init bcm47xx_register_ssb(void)
#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;
switch (bus->hosttype) {
case 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;
case 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;
default:
pr_warn("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)
pr_warn("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)", err);