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Diffstat (limited to 'arch/arm/mach-dove/pcie.c')
-rw-r--r--arch/arm/mach-dove/pcie.c94
1 files changed, 38 insertions, 56 deletions
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 502d1ca2f4b..8a275f29752 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -10,7 +10,8 @@
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/mbus.h>
+#include <linux/clk.h>
+#include <video/vga.h>
#include <asm/mach/pci.h>
#include <asm/mach/arch.h>
#include <asm/setup.h>
@@ -18,6 +19,7 @@
#include <plat/pcie.h>
#include <mach/irqs.h>
#include <mach/bridge-regs.h>
+#include <plat/addr-map.h>
#include "common.h"
struct pcie_port {
@@ -25,9 +27,8 @@ struct pcie_port {
u8 root_bus_nr;
void __iomem *base;
spinlock_t conf_lock;
- char io_space_name[16];
char mem_space_name[16];
- struct resource res[2];
+ struct resource res;
};
static struct pcie_port pcie_port[2];
@@ -42,6 +43,7 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
return 0;
pp = &pcie_port[nr];
+ sys->private_data = pp;
pp->root_bus_nr = sys->busnr;
/*
@@ -49,26 +51,12 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
*/
orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
- orion_pcie_setup(pp->base, &dove_mbus_dram_info);
+ orion_pcie_setup(pp->base);
- /*
- * IORESOURCE_IO
- */
- snprintf(pp->io_space_name, sizeof(pp->io_space_name),
- "PCIe %d I/O", pp->index);
- pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0;
- pp->res[0].name = pp->io_space_name;
- if (pp->index == 0) {
- pp->res[0].start = DOVE_PCIE0_IO_PHYS_BASE;
- pp->res[0].end = pp->res[0].start + DOVE_PCIE0_IO_SIZE - 1;
- } else {
- pp->res[0].start = DOVE_PCIE1_IO_PHYS_BASE;
- pp->res[0].end = pp->res[0].start + DOVE_PCIE1_IO_SIZE - 1;
- }
- pp->res[0].flags = IORESOURCE_IO;
- if (request_resource(&ioport_resource, &pp->res[0]))
- panic("Request PCIe IO resource failed\n");
- sys->resource[0] = &pp->res[0];
+ if (pp->index == 0)
+ pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE0_IO_PHYS_BASE);
+ else
+ pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE1_IO_PHYS_BASE);
/*
* IORESOURCE_MEM
@@ -76,37 +64,22 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
snprintf(pp->mem_space_name, sizeof(pp->mem_space_name),
"PCIe %d MEM", pp->index);
pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0;
- pp->res[1].name = pp->mem_space_name;
+ pp->res.name = pp->mem_space_name;
if (pp->index == 0) {
- pp->res[1].start = DOVE_PCIE0_MEM_PHYS_BASE;
- pp->res[1].end = pp->res[1].start + DOVE_PCIE0_MEM_SIZE - 1;
+ pp->res.start = DOVE_PCIE0_MEM_PHYS_BASE;
+ pp->res.end = pp->res.start + DOVE_PCIE0_MEM_SIZE - 1;
} else {
- pp->res[1].start = DOVE_PCIE1_MEM_PHYS_BASE;
- pp->res[1].end = pp->res[1].start + DOVE_PCIE1_MEM_SIZE - 1;
+ pp->res.start = DOVE_PCIE1_MEM_PHYS_BASE;
+ pp->res.end = pp->res.start + DOVE_PCIE1_MEM_SIZE - 1;
}
- pp->res[1].flags = IORESOURCE_MEM;
- if (request_resource(&iomem_resource, &pp->res[1]))
+ pp->res.flags = IORESOURCE_MEM;
+ if (request_resource(&iomem_resource, &pp->res))
panic("Request PCIe Memory resource failed\n");
- sys->resource[1] = &pp->res[1];
-
- sys->resource[2] = NULL;
+ pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset);
return 1;
}
-static struct pcie_port *bus_to_port(int bus)
-{
- int i;
-
- for (i = num_pcie_ports - 1; i >= 0; i--) {
- int rbus = pcie_port[i].root_bus_nr;
- if (rbus != -1 && rbus <= bus)
- break;
- }
-
- return i >= 0 ? pcie_port + i : NULL;
-}
-
static int pcie_valid_config(struct pcie_port *pp, int bus, int dev)
{
/*
@@ -122,7 +95,8 @@ static int pcie_valid_config(struct pcie_port *pp, int bus, int dev)
static int pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
int size, u32 *val)
{
- struct pcie_port *pp = bus_to_port(bus->number);
+ struct pci_sys_data *sys = bus->sysdata;
+ struct pcie_port *pp = sys->private_data;
unsigned long flags;
int ret;
@@ -141,7 +115,8 @@ static int pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
static int pcie_wr_conf(struct pci_bus *bus, u32 devfn,
int where, int size, u32 val)
{
- struct pcie_port *pp = bus_to_port(bus->number);
+ struct pci_sys_data *sys = bus->sysdata;
+ struct pcie_port *pp = sys->private_data;
unsigned long flags;
int ret;
@@ -160,7 +135,7 @@ static struct pci_ops pcie_ops = {
.write = pcie_wr_conf,
};
-static void __devinit rc_pci_fixup(struct pci_dev *dev)
+static void rc_pci_fixup(struct pci_dev *dev)
{
/*
* Prevent enumeration of root complex.
@@ -183,7 +158,8 @@ dove_pcie_scan_bus(int nr, struct pci_sys_data *sys)
struct pci_bus *bus;
if (nr < num_pcie_ports) {
- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+ &sys->resources);
} else {
bus = NULL;
BUG();
@@ -192,35 +168,39 @@ dove_pcie_scan_bus(int nr, struct pci_sys_data *sys)
return bus;
}
-static int __init dove_pcie_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+static int __init dove_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
- struct pcie_port *pp = bus_to_port(dev->bus->number);
+ struct pci_sys_data *sys = dev->sysdata;
+ struct pcie_port *pp = sys->private_data;
return pp->index ? IRQ_DOVE_PCIE1 : IRQ_DOVE_PCIE0;
}
static struct hw_pci dove_pci __initdata = {
.nr_controllers = 2,
- .swizzle = pci_std_swizzle,
.setup = dove_pcie_setup,
.scan = dove_pcie_scan_bus,
.map_irq = dove_pcie_map_irq,
};
-static void __init add_pcie_port(int index, unsigned long base)
+static void __init add_pcie_port(int index, void __iomem *base)
{
printk(KERN_INFO "Dove PCIe port %d: ", index);
- if (orion_pcie_link_up((void __iomem *)base)) {
+ if (orion_pcie_link_up(base)) {
struct pcie_port *pp = &pcie_port[num_pcie_ports++];
+ struct clk *clk = clk_get_sys("pcie", (index ? "1" : "0"));
+
+ if (!IS_ERR(clk))
+ clk_prepare_enable(clk);
printk(KERN_INFO "link up\n");
pp->index = index;
pp->root_bus_nr = -1;
- pp->base = (void __iomem *)base;
+ pp->base = base;
spin_lock_init(&pp->conf_lock);
- memset(pp->res, 0, sizeof(pp->res));
+ memset(&pp->res, 0, sizeof(pp->res));
} else {
printk(KERN_INFO "link down, ignoring\n");
}
@@ -228,6 +208,8 @@ static void __init add_pcie_port(int index, unsigned long base)
void __init dove_pcie_init(int init_port0, int init_port1)
{
+ vga_base = DOVE_PCIE0_MEM_PHYS_BASE;
+
if (init_port0)
add_pcie_port(0, DOVE_PCIE0_VIRT_BASE);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 20:54:56 +0000