[ar71xx] reorganize PCI code

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16672 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 74 insertions, 62 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/Makefile b/target/linux/ar71xx/files/arch/mips/ar71xx/Makefile
index 720fddfdb..73517fd9b 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/Makefile
@@ -10,6 +10,8 @@
 
 obj-y	:= prom.o irq.o setup.o devices.o gpio.o ar71xx.o
 
+obj-$(CONFIG_PCI)			+= pci.o
+
 obj-$(CONFIG_AR71XX_MACH_AP81)		+= mach-ap81.o
 obj-$(CONFIG_AR71XX_MACH_AP83)		+= mach-ap83.o
 obj-$(CONFIG_AR71XX_MACH_AW_NR580)	+= mach-aw-nr580.o
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/pci.c b/target/linux/ar71xx/files/arch/mips/ar71xx/pci.c
new file mode 100644
index 000000000..d3bcf6b48
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/pci.c
@@ -0,0 +1,52 @@
+/*
+ *  Atheros AR71xx PCI setup code
+ *
+ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+
+unsigned ar71xx_pci_nr_irqs __initdata;
+struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
+
+int (*ar71xx_pci_plat_dev_init)(struct pci_dev *dev);
+
+static int ar71xx_be_handler(struct pt_regs *regs, int is_fixup)
+{
+	int err = 0;
+
+	err = ar71xx_pci_be_handler(is_fixup);
+
+	return (is_fixup && !err) ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+	if (ar71xx_pci_plat_dev_init)
+		return ar71xx_pci_plat_dev_init(dev);
+
+	return 0;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+{
+	return ar71xx_pcibios_map_irq(dev, slot, pin);
+}
+
+int __init ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map)
+{
+	ar71xx_pci_nr_irqs = nr_irqs;
+	ar71xx_pci_irq_map = map;
+
+	board_be_handler = ar71xx_be_handler;
+
+	return ar71xx_pci_bios_init();
+}
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c
index 1d99bb52f..1666d8216 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/setup.c
@@ -12,15 +12,11 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
 #include <linux/serial_8250.h>
 #include <linux/bootmem.h>
 
 #include <asm/bootinfo.h>
-#include <asm/traps.h>
 #include <asm/time.h>		/* for mips_hpt_frequency */
 #include <asm/reboot.h>		/* for _machine_{restart,halt} */
 #include <asm/mips_machine.h>
@@ -49,11 +45,6 @@ EXPORT_SYMBOL_GPL(ar71xx_ddr_freq);
 enum ar71xx_soc_type ar71xx_soc;
 EXPORT_SYMBOL_GPL(ar71xx_soc);
 
-int (*ar71xx_pci_bios_init)(unsigned nr_irqs,
-			     struct ar71xx_pci_irq *map) __initdata;
-
-int (*ar71xx_pci_be_handler)(int is_fixup);
-
 static char ar71xx_sys_type[AR71XX_SYS_TYPE_LEN];
 
 static void ar71xx_restart(char *command)
@@ -70,24 +61,6 @@ static void ar71xx_halt(void)
 		cpu_wait();
 }
 
-static int ar71xx_be_handler(struct pt_regs *regs, int is_fixup)
-{
-	int err = 0;
-
-	if (ar71xx_pci_be_handler)
-		err = ar71xx_pci_be_handler(is_fixup);
-
-	return (is_fixup && !err) ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
-}
-
-int __init ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map)
-{
-	if (!ar71xx_pci_bios_init)
-		return 0;
-
-	return ar71xx_pci_bios_init(nr_irqs, map);
-}
-
 static void __init ar71xx_detect_mem_size(void)
 {
 	unsigned long size;
@@ -316,8 +289,6 @@ void __init plat_mem_setup(void)
 	_machine_halt = ar71xx_halt;
 	pm_power_off = ar71xx_halt;
 
-	board_be_handler = ar71xx_be_handler;
-
 	ar71xx_early_serial_setup();
 }
 
diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/pci.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/pci.h
index 9cf536de4..9de4e02d9 100644
--- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/pci.h
+++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/pci.h
@@ -1,7 +1,7 @@
 /*
  *  Atheros AR71xx SoC specific PCI definitions
  *
- *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
@@ -12,17 +12,24 @@
 #ifndef __ASM_MACH_AR71XX_PCI_H
 #define __ASM_MACH_AR71XX_PCI_H
 
+struct pci_dev;
+
 struct ar71xx_pci_irq {
 	int	irq;
 	u8	slot;
 	u8	pin;
 };
 
-extern int (*ar71xx_pci_be_handler)(int is_fixup);
-extern int (*ar71xx_pci_bios_init)(unsigned nr_irqs,
-				    struct ar71xx_pci_irq *map) __initdata;
+extern int (*ar71xx_pci_plat_dev_init)(struct pci_dev *dev);
+extern unsigned ar71xx_pci_nr_irqs __initdata;
+extern struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
+
+int ar71xx_pcibios_map_irq(const struct pci_dev *dev,
+			   uint8_t slot, uint8_t pin) __init;
+int ar71xx_pcibios_init(void) __init;
+
+int ar71xx_pci_be_handler(int is_fixup);
 
-extern int ar71xx_pci_init(unsigned nr_irqs,
-			   struct ar71xx_pci_irq *map) __init;
+int ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map) __init;
 
 #endif /* __ASM_MACH_AR71XX_PCI_H */
diff --git a/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c b/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
index 383a708b8..711a10969 100644
--- a/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
+++ b/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
@@ -1,7 +1,7 @@
 /*
  *  Atheros AR71xx PCI host controller driver
  *
- *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  Parts of this file are based on Atheros' 2.6.15 BSP
@@ -36,10 +36,7 @@
 #define PCI_IDSEL_BASE	0
 #endif
 
-static unsigned ar71xx_pci_nr_irqs;
-static struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
 static void __iomem *ar71xx_pcicfg_base;
-
 static DEFINE_SPINLOCK(ar71xx_pci_lock);
 
 static inline void ar71xx_pci_delay(void)
@@ -93,7 +90,7 @@ static inline u32 ar71xx_pci_bus_addr(struct pci_bus *bus, unsigned int devfn,
 	return ret;
 }
 
-static int __ar71xx_pci_be_handler(int is_fixup)
+int ar71xx_pci_be_handler(int is_fixup)
 {
 	u32 pci_err;
 	u32 ahb_err;
@@ -135,7 +132,7 @@ static inline int ar71xx_pci_set_cfgaddr(struct pci_bus *bus,
 	ar71xx_pcicfg_wr(PCI_REG_CFG_CBE,
 			cmd | ar71xx_pci_get_ble(where, size, 0));
 
-	return __ar71xx_pci_be_handler(1);
+	return ar71xx_pci_be_handler(1);
 }
 
 static int ar71xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
@@ -243,10 +240,10 @@ static void ar71xx_pci_fixup(struct pci_dev *dev)
 
 	pci_write_config_word(dev, PCI_COMMAND, t);
 }
-
 DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ar71xx_pci_fixup);
 
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+int __init ar71xx_pcibios_map_irq(const struct pci_dev *dev, uint8_t slot,
+				  uint8_t pin)
 {
 	int irq = -1;
 	int i;
@@ -274,11 +271,6 @@ int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
 	return irq;
 }
 
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-	return 0;
-}
-
 static struct pci_ops ar71xx_pci_ops = {
 	.read	= ar71xx_pci_read_config,
 	.write	= ar71xx_pci_write_config,
@@ -304,8 +296,7 @@ static struct pci_controller ar71xx_pci_controller = {
 	.io_resource	= &ar71xx_pci_io_resource,
 };
 
-static int __init __ar71xx_pci_bios_init(unsigned nr_irqs,
-					 struct ar71xx_pci_irq *map)
+int __init ar71xx_pcibios_init(void)
 {
 	ar71xx_device_stop(RESET_MODULE_PCI_BUS | RESET_MODULE_PCI_CORE);
 	ar71xx_pci_delay();
@@ -328,20 +319,9 @@ static int __init __ar71xx_pci_bios_init(unsigned nr_irqs,
 	ar71xx_pci_delay();
 
 	/* clear bus errors */
-	(void)__ar71xx_pci_be_handler(1);
-
-	ar71xx_pci_nr_irqs = nr_irqs;
-	ar71xx_pci_irq_map = map;
-	ar71xx_pci_be_handler = __ar71xx_pci_be_handler;
+	(void)ar71xx_pci_be_handler(1);
 
 	register_pci_controller(&ar71xx_pci_controller);
 
 	return 0;
 }
-
-static int __init __ar71xx_pci_init(void)
-{
-	ar71xx_pci_bios_init = __ar71xx_pci_bios_init;
-	return 0;
-}
-pure_initcall(__ar71xx_pci_init);