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Diffstat (limited to 'arch/arm/mach-footbridge/dc21285.c')
-rw-r--r--arch/arm/mach-footbridge/dc21285.c98
1 files changed, 45 insertions, 53 deletions
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index e79884eea1f..96a3d73ef4b 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -10,16 +10,16 @@
*/
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/ptrace.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/ioport.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
-#include <asm/io.h>
#include <asm/irq.h>
-#include <asm/system.h>
#include <asm/mach/pci.h>
#include <asm/hardware/dec21285.h>
@@ -35,7 +35,6 @@
extern int setup_arm_irq(int, struct irqaction *);
extern void pcibios_report_status(u_int status_mask, int warn);
-extern void register_isa_ports(unsigned int, unsigned int, unsigned int);
static unsigned long
dc21285_base_address(struct pci_bus *bus, unsigned int devfn)
@@ -70,16 +69,16 @@ dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
if (addr)
switch (size) {
case 1:
- asm("ldr%?b %0, [%1, %2]"
- : "=r" (v) : "r" (addr), "r" (where));
+ asm("ldrb %0, [%1, %2]"
+ : "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
case 2:
- asm("ldr%?h %0, [%1, %2]"
- : "=r" (v) : "r" (addr), "r" (where));
+ asm("ldrh %0, [%1, %2]"
+ : "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
case 4:
- asm("ldr%? %0, [%1, %2]"
- : "=r" (v) : "r" (addr), "r" (where));
+ asm("ldr %0, [%1, %2]"
+ : "=r" (v) : "r" (addr), "r" (where) : "cc");
break;
}
@@ -104,16 +103,19 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
if (addr)
switch (size) {
case 1:
- asm("str%?b %0, [%1, %2]"
- : : "r" (value), "r" (addr), "r" (where));
+ asm("strb %0, [%1, %2]"
+ : : "r" (value), "r" (addr), "r" (where)
+ : "cc");
break;
case 2:
- asm("str%?h %0, [%1, %2]"
- : : "r" (value), "r" (addr), "r" (where));
+ asm("strh %0, [%1, %2]"
+ : : "r" (value), "r" (addr), "r" (where)
+ : "cc");
break;
case 4:
- asm("str%? %0, [%1, %2]"
- : : "r" (value), "r" (addr), "r" (where));
+ asm("str %0, [%1, %2]"
+ : : "r" (value), "r" (addr), "r" (where)
+ : "cc");
break;
}
@@ -126,7 +128,7 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
return PCIBIOS_SUCCESSFUL;
}
-static struct pci_ops dc21285_ops = {
+struct pci_ops dc21285_ops = {
.read = dc21285_read_config,
.write = dc21285_write_config,
};
@@ -152,7 +154,7 @@ static void dc21285_enable_error(unsigned long __data)
/*
* Warn on PCI errors.
*/
-static irqreturn_t dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_abort_irq(int irq, void *dev_id)
{
unsigned int cmd;
unsigned int status;
@@ -163,7 +165,7 @@ static irqreturn_t dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs
if (status & PCI_STATUS_REC_MASTER_ABORT) {
printk(KERN_DEBUG "PCI: master abort, pc=0x%08lx\n",
- instruction_pointer(regs));
+ instruction_pointer(get_irq_regs()));
cmd |= PCI_STATUS_REC_MASTER_ABORT << 16;
}
@@ -182,7 +184,7 @@ static irqreturn_t dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs
return IRQ_HANDLED;
}
-static irqreturn_t dc21285_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_serr_irq(int irq, void *dev_id)
{
struct timer_list *timer = dev_id;
unsigned int cntl;
@@ -204,7 +206,7 @@ static irqreturn_t dc21285_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
return IRQ_HANDLED;
}
-static irqreturn_t dc21285_discard_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_discard_irq(int irq, void *dev_id)
{
printk(KERN_DEBUG "PCI: discard timer expired\n");
*CSR_SA110_CNTL &= 0xffffde07;
@@ -212,7 +214,7 @@ static irqreturn_t dc21285_discard_irq(int irq, void *dev_id, struct pt_regs *re
return IRQ_HANDLED;
}
-static irqreturn_t dc21285_dparity_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_dparity_irq(int irq, void *dev_id)
{
unsigned int cmd;
@@ -226,7 +228,7 @@ static irqreturn_t dc21285_dparity_irq(int irq, void *dev_id, struct pt_regs *re
return IRQ_HANDLED;
}
-static irqreturn_t dc21285_parity_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_parity_irq(int irq, void *dev_id)
{
struct timer_list *timer = dev_id;
unsigned int cmd;
@@ -255,14 +257,12 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
if (nr || !footbridge_cfn_mode())
return 0;
- res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
if (!res) {
printk("out of memory for root bus resources");
return 0;
}
- memset(res, 0, sizeof(struct resource) * 2);
-
res[0].flags = IORESOURCE_MEM;
res[0].name = "Footbridge non-prefetch";
res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
@@ -273,28 +273,28 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
allocate_resource(&iomem_resource, &res[0], 0x40000000,
0x80000000, 0xffffffff, 0x40000000, NULL, NULL);
- sys->resource[0] = &ioport_resource;
- sys->resource[1] = &res[0];
- sys->resource[2] = &res[1];
sys->mem_offset = DC21285_PCI_MEM;
+ pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset);
+ pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+
return 1;
}
-struct pci_bus * __init dc21285_scan_bus(int nr, struct pci_sys_data *sys)
-{
- return pci_scan_bus(0, &dc21285_ops, sys);
-}
+#define dc21285_request_irq(_a, _b, _c, _d, _e) \
+ WARN_ON(request_irq(_a, _b, _c, _d, _e) < 0)
void __init dc21285_preinit(void)
{
unsigned int mem_size, mem_mask;
int cfn_mode;
+ pcibios_min_mem = 0x81000000;
+
mem_size = (unsigned int)high_memory - PAGE_OFFSET;
for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1)
if (mem_mask >= mem_size)
- break;
+ break;
/*
* These registers need to be set up whether we're the
@@ -334,26 +334,18 @@ void __init dc21285_preinit(void)
/*
* We don't care if these fail.
*/
- request_irq(IRQ_PCI_SERR, dc21285_serr_irq, SA_INTERRUPT,
- "PCI system error", &serr_timer);
- request_irq(IRQ_PCI_PERR, dc21285_parity_irq, SA_INTERRUPT,
- "PCI parity error", &perr_timer);
- request_irq(IRQ_PCI_ABORT, dc21285_abort_irq, SA_INTERRUPT,
- "PCI abort", NULL);
- request_irq(IRQ_DISCARD_TIMER, dc21285_discard_irq, SA_INTERRUPT,
- "Discard timer", NULL);
- request_irq(IRQ_PCI_DPERR, dc21285_dparity_irq, SA_INTERRUPT,
- "PCI data parity", NULL);
+ dc21285_request_irq(IRQ_PCI_SERR, dc21285_serr_irq, 0,
+ "PCI system error", &serr_timer);
+ dc21285_request_irq(IRQ_PCI_PERR, dc21285_parity_irq, 0,
+ "PCI parity error", &perr_timer);
+ dc21285_request_irq(IRQ_PCI_ABORT, dc21285_abort_irq, 0,
+ "PCI abort", NULL);
+ dc21285_request_irq(IRQ_DISCARD_TIMER, dc21285_discard_irq, 0,
+ "Discard timer", NULL);
+ dc21285_request_irq(IRQ_PCI_DPERR, dc21285_dparity_irq, 0,
+ "PCI data parity", NULL);
if (cfn_mode) {
- static struct resource csrio;
-
- csrio.flags = IORESOURCE_IO;
- csrio.name = "Footbridge";
-
- allocate_resource(&ioport_resource, &csrio, 128,
- 0xff00, 0xffff, 128, NULL, NULL);
-
/*
* Map our SDRAM at a known address in PCI space, just in case
* the firmware had other ideas. Using a nonzero base is
@@ -361,7 +353,7 @@ void __init dc21285_preinit(void)
* in the range 0x000a0000 to 0x000c0000. (eg, S3 cards).
*/
*CSR_PCICSRBASE = 0xf4000000;
- *CSR_PCICSRIOBASE = csrio.start;
+ *CSR_PCICSRIOBASE = 0;
*CSR_PCISDRAMBASE = __virt_to_bus(PAGE_OFFSET);
*CSR_PCIROMBASE = 0;
*CSR_PCICMD = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 18:46:47 +0000