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openwrt/target/linux/brcm47xx/patches-3.18/030-04-MIPS-BCM47XX-Move-SP...

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From a59da8fb3b2a1f2df5f871464e43cd5b6ca6ceb1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Tue, 28 Oct 2014 12:52:02 +0100
Subject: [PATCH 157/158] MIPS: BCM47XX: Move SPROM fallback code into sprom.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is some general cleanup as well as preparing sprom.c to become a
standalone driver. We will need this for bcm53xx ARM arch support.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8232/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/bcm47xx/bcm47xx_private.h | 3 ++
arch/mips/bcm47xx/setup.c | 58 ++-----------------------------
arch/mips/bcm47xx/sprom.c | 68 +++++++++++++++++++++++++++++++++++++
3 files changed, 73 insertions(+), 56 deletions(-)
--- a/arch/mips/bcm47xx/bcm47xx_private.h
+++ b/arch/mips/bcm47xx/bcm47xx_private.h
@@ -6,6 +6,9 @@
/* prom.c */
void __init bcm47xx_prom_highmem_init(void);
+/* sprom.c */
+void bcm47xx_sprom_register_fallbacks(void);
+
/* buttons.c */
int __init bcm47xx_buttons_register(void);
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -102,23 +102,6 @@ static void bcm47xx_machine_halt(void)
}
#ifdef CONFIG_BCM47XX_SSB
-static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
-{
- char prefix[10];
-
- if (bus->bustype == SSB_BUSTYPE_PCI) {
- memset(out, 0, sizeof(struct ssb_sprom));
- snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
- bus->host_pci->bus->number + 1,
- PCI_SLOT(bus->host_pci->devfn));
- bcm47xx_fill_sprom(out, prefix, false);
- return 0;
- } else {
- printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
- return -EINVAL;
- }
-}
-
static int bcm47xx_get_invariants(struct ssb_bus *bus,
struct ssb_init_invariants *iv)
{
@@ -144,11 +127,6 @@ static void __init bcm47xx_register_ssb(
char buf[100];
struct ssb_mipscore *mcore;
- 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);
-
err = ssb_bus_ssbbus_register(&(bcm47xx_bus.ssb), SSB_ENUM_BASE,
bcm47xx_get_invariants);
if (err)
@@ -171,44 +149,10 @@ 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;
-
- switch (bus->hosttype) {
- case BCMA_HOSTTYPE_PCI:
- memset(out, 0, sizeof(struct ssb_sprom));
- snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
- bus->host_pci->bus->number + 1,
- PCI_SLOT(bus->host_pci->devfn));
- bcm47xx_fill_sprom(out, prefix, false);
- return 0;
- case BCMA_HOSTTYPE_SOC:
- memset(out, 0, sizeof(struct ssb_sprom));
- core = bcma_find_core(bus, BCMA_CORE_80211);
- if (core) {
- snprintf(prefix, sizeof(prefix), "sb/%u/",
- core->core_index);
- bcm47xx_fill_sprom(out, prefix, true);
- } else {
- bcm47xx_fill_sprom(out, NULL, false);
- }
- 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 register BCMA bus (err %d)", err);
@@ -229,6 +173,7 @@ void __init plat_mem_setup(void)
printk(KERN_INFO "bcm47xx: using bcma bus\n");
#ifdef CONFIG_BCM47XX_BCMA
bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
+ bcm47xx_sprom_register_fallbacks();
bcm47xx_register_bcma();
bcm47xx_set_system_type(bcm47xx_bus.bcma.bus.chipinfo.id);
#ifdef CONFIG_HIGHMEM
@@ -239,6 +184,7 @@ void __init plat_mem_setup(void)
printk(KERN_INFO "bcm47xx: using ssb bus\n");
#ifdef CONFIG_BCM47XX_SSB
bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
+ bcm47xx_sprom_register_fallbacks();
bcm47xx_register_ssb();
bcm47xx_set_system_type(bcm47xx_bus.ssb.chip_id);
#endif
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -801,3 +801,71 @@ void bcm47xx_fill_bcma_boardinfo(struct
nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
}
#endif
+
+#if defined(CONFIG_BCM47XX_SSB)
+static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
+{
+ char prefix[10];
+
+ if (bus->bustype == SSB_BUSTYPE_PCI) {
+ memset(out, 0, sizeof(struct ssb_sprom));
+ snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
+ bus->host_pci->bus->number + 1,
+ PCI_SLOT(bus->host_pci->devfn));
+ bcm47xx_fill_sprom(out, prefix, false);
+ return 0;
+ } else {
+ pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
+ return -EINVAL;
+ }
+}
+#endif
+
+#if defined(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:
+ memset(out, 0, sizeof(struct ssb_sprom));
+ snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
+ bus->host_pci->bus->number + 1,
+ PCI_SLOT(bus->host_pci->devfn));
+ bcm47xx_fill_sprom(out, prefix, false);
+ return 0;
+ case BCMA_HOSTTYPE_SOC:
+ memset(out, 0, sizeof(struct ssb_sprom));
+ core = bcma_find_core(bus, BCMA_CORE_80211);
+ if (core) {
+ snprintf(prefix, sizeof(prefix), "sb/%u/",
+ core->core_index);
+ bcm47xx_fill_sprom(out, prefix, true);
+ } else {
+ bcm47xx_fill_sprom(out, NULL, false);
+ }
+ return 0;
+ default:
+ pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
+ return -EINVAL;
+ }
+}
+#endif
+
+/*
+ * On bcm47xx we need to register SPROM fallback handler very early, so we can't
+ * use anything like platform device / driver for this.
+ */
+void bcm47xx_sprom_register_fallbacks(void)
+{
+#if defined(CONFIG_BCM47XX_SSB)
+ if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
+ pr_warn("Failed to registered ssb SPROM handler\n");
+#endif
+
+#if defined(CONFIG_BCM47XX_BCMA)
+ if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
+ pr_warn("Failed to registered bcma SPROM handler\n");
+#endif
+}
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