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ARM: integrator: move static ioremapping into PCIv3 driver 

Try to make this driver self-contained by moving the ioremapping
into the driver.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2013-03-19 19:58:49 +01:00
parent 01ef31053d
commit ae9daf2d00
4 changed files with 51 additions and 38 deletions
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22
arch/arm/mach-integrator/include/mach/platform.h
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@ -304,28 +304,6 @@
/* KMI definitions are now in include/asm-arm/hardware/amba_kmi.h -- rmk */
/* ------------------------------------------------------------------------
* Where in the memory map does PCI live?
* ------------------------------------------------------------------------
* This represents a fairly liberal usage of address space. Even though
* the V3 only has two windows (therefore we need to map stuff on the fly),
* we maintain the same addresses, even if they're not mapped.
*
*/
#define PHYS_PCI_MEM_BASE 0x40000000 /* 512M to xxx */
/* unused 256M from A0000000-AFFFFFFF might be used for I2O ???
*/
#define PHYS_PCI_IO_BASE 0x60000000 /* 16M to xxx */
/* unused (128-16)M from B1000000-B7FFFFFF
*/
#define PHYS_PCI_CONFIG_BASE 0x61000000 /* 16M to xxx */
/* unused ((128-16)M - 64K) from XXX
*/
#define PHYS_PCI_V3_BASE 0x62000000
#define PCI_MEMORY_VADDR IOMEM(0xe8000000)
#define PCI_CONFIG_VADDR IOMEM(0xec000000)
/* ------------------------------------------------------------------------
* Integrator Interrupt Controllers
* ------------------------------------------------------------------------

17
arch/arm/mach-integrator/integrator_ap.c
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@ -56,10 +56,10 @@
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include "common.h"
#include "pci_v3.h"
/* Base address to the AP system controller */
void __iomem *ap_syscon_base;
@ -77,9 +77,6 @@ void __iomem *ap_syscon_base;
/*
* Logical Physical
* e8000000 40000000 PCI memory PHYS_PCI_MEM_BASE (max 512M)
* ec000000 61000000 PCI config space PHYS_PCI_CONFIG_BASE (max 16M)
* fee00000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M)
* ef000000 Cache flush
* f1000000 10000000 Core module registers
* f1100000 11000000 System controller registers
@ -128,23 +125,13 @@ static struct map_desc ap_io_desc[] __initdata __maybe_unused = {
.pfn = __phys_to_pfn(INTEGRATOR_AP_GPIO_BASE),
.length = SZ_4K,
.type = MT_DEVICE
}, {
.virtual = (unsigned long)PCI_MEMORY_VADDR,
.pfn = __phys_to_pfn(PHYS_PCI_MEM_BASE),
.length = SZ_16M,
.type = MT_DEVICE
}, {
.virtual = (unsigned long)PCI_CONFIG_VADDR,
.pfn = __phys_to_pfn(PHYS_PCI_CONFIG_BASE),
.length = SZ_16M,
.type = MT_DEVICE
}
};
static void __init ap_map_io(void)
{
iotable_init(ap_io_desc, ARRAY_SIZE(ap_io_desc));
pci_map_io_early(__phys_to_pfn(PHYS_PCI_IO_BASE));
pci_v3_early_init();
}
#ifdef CONFIG_PM

48
arch/arm/mach-integrator/pci_v3.c
View File

@ -34,10 +34,28 @@
#include <mach/platform.h>
#include <mach/irqs.h>
#include <asm/mach/map.h>
#include <asm/signal.h>
#include <asm/mach/pci.h>
#include <asm/irq_regs.h>
#include "pci_v3.h"
/*
* Where in the memory map does PCI live?
*
* This represents a fairly liberal usage of address space. Even though
* the V3 only has two windows (therefore we need to map stuff on the fly),
* we maintain the same addresses, even if they're not mapped.
*/
#define PHYS_PCI_MEM_BASE 0x40000000 /* 512M */
#define PHYS_PCI_IO_BASE 0x60000000 /* 16M */
#define PHYS_PCI_CONFIG_BASE 0x61000000 /* 16M */
#define PHYS_PCI_V3_BASE 0x62000000 /* 64K */
#define PCI_MEMORY_VADDR IOMEM(0xe8000000)
#define PCI_CONFIG_VADDR IOMEM(0xec000000)
/*
* V3 Local Bus to PCI Bridge definitions
*
@ -851,7 +869,6 @@ static int __init pci_v3_probe(struct platform_device *pdev)
return -ENODEV;
}
vga_base = (unsigned long)PCI_MEMORY_VADDR;
pci_common_init(&pci_v3);
return 0;
@ -869,3 +886,32 @@ static int __init pci_v3_init(void)
}
subsys_initcall(pci_v3_init);
/*
* Static mappings for the PCIv3 bridge
*
* e8000000 40000000 PCI memory PHYS_PCI_MEM_BASE (max 512M)
* ec000000 61000000 PCI config space PHYS_PCI_CONFIG_BASE (max 16M)
* fee00000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M)
*/
static struct map_desc pci_v3_io_desc[] __initdata __maybe_unused = {
{
.virtual = (unsigned long)PCI_MEMORY_VADDR,
.pfn = __phys_to_pfn(PHYS_PCI_MEM_BASE),
.length = SZ_16M,
.type = MT_DEVICE
}, {
.virtual = (unsigned long)PCI_CONFIG_VADDR,
.pfn = __phys_to_pfn(PHYS_PCI_CONFIG_BASE),
.length = SZ_16M,
.type = MT_DEVICE
}
};
int __init pci_v3_early_init(void)
{
iotable_init(pci_v3_io_desc, ARRAY_SIZE(pci_v3_io_desc));
vga_base = (unsigned long)PCI_MEMORY_VADDR;
pci_map_io_early(__phys_to_pfn(PHYS_PCI_IO_BASE));
return 0;
}

2
arch/arm/mach-integrator/pci_v3.h 100644
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@ -0,0 +1,2 @@
/* Simple oneliner include to the PCIv3 early init */
extern int pci_v3_early_init(void);