[PATCH 3/4] arch/arm/mach-kirkwood: add support for 2nd PCIe port on 88f6282.
Benjamin Zores
benjamin.zores at alcatel-lucent.com
Thu Jun 10 09:59:46 EDT 2010
Signed-off-by: Benjamin Zores <benjamin.zores at alcatel-lucent.com>
---
arch/arm/mach-kirkwood/addr-map.c | 21 ++
arch/arm/mach-kirkwood/common.c | 28 +++
arch/arm/mach-kirkwood/common.h | 5 -
arch/arm/mach-kirkwood/db88f6281-bp-setup.c | 2
arch/arm/mach-kirkwood/include/mach/bridge-regs.h | 3
arch/arm/mach-kirkwood/include/mach/irqs.h | 1
arch/arm/mach-kirkwood/include/mach/kirkwood.h | 12 +
arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c | 2
arch/arm/mach-kirkwood/openrd-setup.c | 2
arch/arm/mach-kirkwood/pcie.c | 202 ++++++++++++++++-----
arch/arm/mach-kirkwood/rd88f6192-nas-setup.c | 2
arch/arm/mach-kirkwood/rd88f6281-setup.c | 2
arch/arm/mach-kirkwood/ts219-setup.c | 2
arch/arm/mach-kirkwood/ts41x-setup.c | 2
14 files changed, 223 insertions(+), 63 deletions(-)
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c
index 2e69168..aa6bf38 100644
--- a/arch/arm/mach-kirkwood/addr-map.c
+++ b/arch/arm/mach-kirkwood/addr-map.c
@@ -31,6 +31,8 @@
#define ATTR_DEV_CS0 0x3e
#define ATTR_PCIE_IO 0xe0
#define ATTR_PCIE_MEM 0xe8
+#define ATTR_PCIE1_IO 0xd0
+#define ATTR_PCIE1_MEM 0xd8
#define ATTR_SRAM 0x01
/*
@@ -84,6 +86,8 @@ void __init kirkwood_setup_cpu_mbus(void)
void __iomem *addr;
int i;
int cs;
+ int id = 0;
+ u32 dev, rev;
/*
* First, disable and clear windows.
@@ -102,21 +106,30 @@ void __init kirkwood_setup_cpu_mbus(void)
/*
* Setup windows for PCIe IO+MEM space.
*/
- setup_cpu_win(0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE,
+ setup_cpu_win(id++, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE,
TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE);
- setup_cpu_win(1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE,
+ setup_cpu_win(id++, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE,
TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE);
+ kirkwood_pcie_id(&dev, &rev);
+
+ if (dev == MV88F6282_DEV_ID && (rev == MV88F6282_REV_A0)) {
+ setup_cpu_win(id++, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE,
+ TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE);
+ setup_cpu_win(id++, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE,
+ TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE);
+ }
+
/*
* Setup window for NAND controller.
*/
- setup_cpu_win(2, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
+ setup_cpu_win(id++, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
TARGET_DEV_BUS, ATTR_DEV_NAND, -1);
/*
* Setup window for SRAM.
*/
- setup_cpu_win(3, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE,
+ setup_cpu_win(id++, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE,
TARGET_SRAM, ATTR_SRAM, -1);
/*
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 94f629d..473a1d0 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -44,6 +44,11 @@ static struct map_desc kirkwood_io_desc[] __initdata = {
.length = KIRKWOOD_PCIE_IO_SIZE,
.type = MT_DEVICE,
}, {
+ .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE,
+ .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
+ .length = KIRKWOOD_PCIE1_IO_SIZE,
+ .type = MT_DEVICE,
+ }, {
.virtual = KIRKWOOD_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
.length = KIRKWOOD_REGS_SIZE,
@@ -957,12 +962,20 @@ void __init kirkwood_init(void)
static int __init kirkwood_clock_gate(void)
{
unsigned int curr = readl(CLOCK_GATING_CTRL);
+ u32 dev, rev;
+ int flags;
printk(KERN_DEBUG "Gating clock of unused units\n");
printk(KERN_DEBUG "before: 0x%08x\n", curr);
+ kirkwood_pcie_id(&dev, &rev);
+
/* Make sure those units are accessible */
- writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0, CLOCK_GATING_CTRL);
+ flags = curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0;
+
+ if (dev == MV88F6282_DEV_ID && (rev == MV88F6282_REV_A0))
+ flags |= CGC_PEX1;
+ writel(flags, CLOCK_GATING_CTRL);
/* For SATA: first shutdown the phy */
if (!(kirkwood_clk_ctrl & CGC_SATA0)) {
@@ -978,7 +991,7 @@ static int __init kirkwood_clock_gate(void)
writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL);
}
- /* For PCIe: first shutdown the phy */
+ /* For PCIe #0: first shutdown the phy */
if (!(kirkwood_clk_ctrl & CGC_PEX0)) {
writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
while (1)
@@ -987,6 +1000,17 @@ static int __init kirkwood_clock_gate(void)
writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
}
+ /* For PCIe #1: first shutdown the phy */
+ if (dev == MV88F6282_DEV_ID && (rev == MV88F6282_REV_A0)) {
+ if (!(kirkwood_clk_ctrl & CGC_PEX1)) {
+ writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL);
+ while (1)
+ if (readl(PCIE1_STATUS) & 0x1)
+ break;
+ writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL);
+ }
+ }
+
/* Now gate clock the required units */
writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL);
printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL));
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 05e8a8a..5b2c1c1 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -18,6 +18,9 @@ struct mvsdio_platform_data;
struct mtd_partition;
struct mtd_info;
+#define KW_PCIE0 (1 << 0)
+#define KW_PCIE1 (1 << 1)
+
/*
* Basic Kirkwood init functions used early by machine-setup.
*/
@@ -34,7 +37,7 @@ void kirkwood_ehci_init(void);
void kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data);
void kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data);
void kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq);
-void kirkwood_pcie_init(void);
+void kirkwood_pcie_init(unsigned int portmask);
void kirkwood_sata_init(struct mv_sata_platform_data *sata_data);
void kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data);
void kirkwood_spi_init(void);
diff --git a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
index 39bdf4b..7550c4e 100644
--- a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
+++ b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
@@ -75,7 +75,7 @@ static void __init db88f6281_init(void)
static int __init db88f6281_pci_init(void)
{
if (machine_is_db88f6281_bp())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
index 418f501..aff0e13 100644
--- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
+++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
@@ -59,8 +59,9 @@
#define CGC_SATA1 (1 << 15)
#define CGC_XOR1 (1 << 16)
#define CGC_CRYPTO (1 << 17)
+#define CGC_PEX1 (1 << 18)
#define CGC_GE1 (1 << 19)
#define CGC_TDM (1 << 20)
-#define CGC_RESERVED ((1 << 18) | (0x6 << 21))
+#define CGC_RESERVED (0x6 << 21)
#endif
diff --git a/arch/arm/mach-kirkwood/include/mach/irqs.h b/arch/arm/mach-kirkwood/include/mach/irqs.h
index f00a0a4..9da2eb5 100644
--- a/arch/arm/mach-kirkwood/include/mach/irqs.h
+++ b/arch/arm/mach-kirkwood/include/mach/irqs.h
@@ -23,6 +23,7 @@
#define IRQ_KIRKWOOD_XOR_10 7
#define IRQ_KIRKWOOD_XOR_11 8
#define IRQ_KIRKWOOD_PCIE 9
+#define IRQ_KIRKWOOD_PCIE1 10
#define IRQ_KIRKWOOD_GE00_SUM 11
#define IRQ_KIRKWOOD_GE01_SUM 15
#define IRQ_KIRKWOOD_USB 19
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index a571860..7f0b50a 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -38,6 +38,11 @@
#define KIRKWOOD_PCIE_IO_BUS_BASE 0x00000000
#define KIRKWOOD_PCIE_IO_SIZE SZ_1M
+#define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf5000000
+#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfed00000
+#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00000000
+#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M
+
#define KIRKWOOD_REGS_PHYS_BASE 0xf1000000
#define KIRKWOOD_REGS_VIRT_BASE 0xfee00000
#define KIRKWOOD_REGS_SIZE SZ_1M
@@ -46,6 +51,10 @@
#define KIRKWOOD_PCIE_MEM_BUS_BASE 0xe0000000
#define KIRKWOOD_PCIE_MEM_SIZE SZ_128M
+#define KIRKWOOD_PCIE1_MEM_PHYS_BASE 0xd8000000
+#define KIRKWOOD_PCIE1_MEM_BUS_BASE 0xd8000000
+#define KIRKWOOD_PCIE1_MEM_SIZE SZ_128M
+
/*
* Register Map
*/
@@ -72,6 +81,9 @@
#define PCIE_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x40000)
#define PCIE_LINK_CTRL (PCIE_VIRT_BASE | 0x70)
#define PCIE_STATUS (PCIE_VIRT_BASE | 0x1a04)
+#define PCIE1_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x44000)
+#define PCIE1_LINK_CTRL (PCIE1_VIRT_BASE | 0x70)
+#define PCIE1_STATUS (PCIE1_VIRT_BASE | 0x1a04)
#define USB_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE | 0x50000)
diff --git a/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c b/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
index 5e6f711..c6b92b4 100644
--- a/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
+++ b/arch/arm/mach-kirkwood/mv88f6281gtw_ge-setup.c
@@ -155,7 +155,7 @@ static void __init mv88f6281gtw_ge_init(void)
static int __init mv88f6281gtw_ge_pci_init(void)
{
if (machine_is_mv88f6281gtw_ge())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/openrd-setup.c b/arch/arm/mach-kirkwood/openrd-setup.c
index ad3f1ec..2400207 100644
--- a/arch/arm/mach-kirkwood/openrd-setup.c
+++ b/arch/arm/mach-kirkwood/openrd-setup.c
@@ -85,7 +85,7 @@ static void __init openrd_init(void)
static int __init openrd_pci_init(void)
{
if (machine_is_openrd_base() || machine_is_openrd_client())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index dee1eff..dd1dc29 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -18,29 +18,51 @@
#include <mach/bridge-regs.h>
#include "common.h"
+void __init kirkwood_pcie_id(u32 *dev, u32 *rev)
+{
+ *dev = orion_pcie_dev_id((void __iomem *)PCIE_VIRT_BASE);
+ *rev = orion_pcie_rev((void __iomem *)PCIE_VIRT_BASE);
+}
-#define PCIE_BASE ((void __iomem *)PCIE_VIRT_BASE)
+struct pcie_port {
+ int index;
+ u8 root_bus_nr;
+ void __iomem *base;
+ spinlock_t conf_lock;
+ int irq;
+ struct resource res[2];
+};
-void __init kirkwood_pcie_id(u32 *dev, u32 *rev)
+static struct pcie_port pcie_port[2];
+static int num_pcie_ports;
+
+static inline struct pcie_port *bus_to_port(int bus)
{
- *dev = orion_pcie_dev_id(PCIE_BASE);
- *rev = orion_pcie_rev(PCIE_BASE);
+ 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(int bus, int dev)
+static int pcie_valid_config(struct pcie_port *pp, int bus, int dev)
{
/*
* Don't go out when trying to access --
* 1. nonexisting device on local bus
* 2. where there's no device connected (no link)
*/
- if (bus == 0 && dev == 0)
+ if (bus == pp->root_bus_nr && dev == 0)
return 1;
- if (!orion_pcie_link_up(PCIE_BASE))
+ if (!orion_pcie_link_up(pp->base))
return 0;
- if (bus == 0 && dev != 1)
+ if (bus == pp->root_bus_nr && dev != 1)
return 0;
return 1;
@@ -52,22 +74,22 @@ static int pcie_valid_config(int bus, int dev)
* and then reading the PCIE_CONF_DATA register. Need to make sure these
* transactions are atomic.
*/
-static DEFINE_SPINLOCK(kirkwood_pcie_lock);
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);
unsigned long flags;
int ret;
- if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) {
+ if (pcie_valid_config(pp, bus->number, PCI_SLOT(devfn)) == 0) {
*val = 0xffffffff;
return PCIBIOS_DEVICE_NOT_FOUND;
}
- spin_lock_irqsave(&kirkwood_pcie_lock, flags);
- ret = orion_pcie_rd_conf(PCIE_BASE, bus, devfn, where, size, val);
- spin_unlock_irqrestore(&kirkwood_pcie_lock, flags);
+ spin_lock_irqsave(&pp->conf_lock, flags);
+ ret = orion_pcie_rd_conf(pp->base, bus, devfn, where, size, val);
+ spin_unlock_irqrestore(&pp->conf_lock, flags);
return ret;
}
@@ -75,15 +97,16 @@ 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);
unsigned long flags;
int ret;
- if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0)
+ if (pcie_valid_config(pp, bus->number, PCI_SLOT(devfn)) == 0)
return PCIBIOS_DEVICE_NOT_FOUND;
- spin_lock_irqsave(&kirkwood_pcie_lock, flags);
- ret = orion_pcie_wr_conf(PCIE_BASE, bus, devfn, where, size, val);
- spin_unlock_irqrestore(&kirkwood_pcie_lock, flags);
+ spin_lock_irqsave(&pp->conf_lock, flags);
+ ret = orion_pcie_wr_conf(pp->base, bus, devfn, where, size, val);
+ spin_unlock_irqrestore(&pp->conf_lock, flags);
return ret;
}
@@ -93,50 +116,106 @@ static struct pci_ops pcie_ops = {
.write = pcie_wr_conf,
};
-
-static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
+static int __init pcie0_ioresouces_setup(struct pcie_port *pp)
{
- struct resource *res;
- extern unsigned int kirkwood_clk_ctrl;
-
/*
- * Generic PCIe unit setup.
+ * IORESOURCE_IO
*/
- orion_pcie_setup(PCIE_BASE, &kirkwood_mbus_dram_info);
+ pp->res[0].name = "PCIe 0 I/O Space";
+ pp->res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
+ pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
+ pp->res[0].flags = IORESOURCE_IO;
+ if (request_resource(&ioport_resource, &pp->res[0]))
+ panic("Request PCIe 0 IO resource failed\n");
/*
- * Request resources.
+ * IORESOURCE_MEM
*/
- res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
- if (!res)
- panic("pcie_setup unable to alloc resources");
+ pp->res[1].name = "PCIe 0 MEM";
+ pp->res[1].start = KIRKWOOD_PCIE_MEM_PHYS_BASE;
+ pp->res[1].end = pp->res[1].start + KIRKWOOD_PCIE_MEM_SIZE - 1;
+ pp->res[1].flags = IORESOURCE_MEM;
+ if (request_resource(&iomem_resource, &pp->res[1]))
+ panic("Request PCIe 0 Memory resource failed\n");
+
+ return 1;
+}
+static int __init pcie1_ioresouces_setup(struct pcie_port *pp)
+{
/*
* IORESOURCE_IO
*/
- res[0].name = "PCIe I/O Space";
- res[0].flags = IORESOURCE_IO;
- res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE;
- res[0].end = res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
- if (request_resource(&ioport_resource, &res[0]))
- panic("Request PCIe IO resource failed\n");
- sys->resource[0] = &res[0];
+ pp->res[0].name = "PCIe 1 I/O Space";
+ pp->res[0].start = KIRKWOOD_PCIE1_IO_PHYS_BASE;
+ pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1;
+ pp->res[0].flags = IORESOURCE_IO;
+ if (request_resource(&ioport_resource, &pp->res[0]))
+ panic("Request PCIe 1 IO resource failed\n");
/*
* IORESOURCE_MEM
*/
- res[1].name = "PCIe Memory Space";
- res[1].flags = IORESOURCE_MEM;
- res[1].start = KIRKWOOD_PCIE_MEM_BUS_BASE;
- res[1].end = res[1].start + KIRKWOOD_PCIE_MEM_SIZE - 1;
- if (request_resource(&iomem_resource, &res[1]))
- panic("Request PCIe Memory resource failed\n");
- sys->resource[1] = &res[1];
+ pp->res[1].name = "PCIe 1 MEM";
+ pp->res[1].start = KIRKWOOD_PCIE1_MEM_PHYS_BASE;
+ pp->res[1].end = pp->res[1].start + KIRKWOOD_PCIE1_MEM_SIZE - 1;
+ pp->res[1].flags = IORESOURCE_MEM;
+ if (request_resource(&iomem_resource, &pp->res[1]))
+ panic("Request PCIe 1 Memory resource failed\n");
- sys->resource[2] = NULL;
- sys->io_offset = 0;
+ return 1;
+}
+
+static void __init kirkwood_pcie_preinit(void)
+{
+ int i;
+
+ for (i = 0; i < num_pcie_ports; i++) {
+ struct pcie_port *pp = pcie_port + i;
+ extern unsigned int kirkwood_clk_ctrl;
+ switch (pp->index) {
+ case 0:
+ pp->base = (void __iomem *)PCIE_VIRT_BASE;
+ pp->irq = IRQ_KIRKWOOD_PCIE;
kirkwood_clk_ctrl |= CGC_PEX0;
+ pcie0_ioresouces_setup(pp);
+ break;
+ case 1:
+ pp->base = (void __iomem *)PCIE1_VIRT_BASE;
+ pp->irq = IRQ_KIRKWOOD_PCIE1;
+ kirkwood_clk_ctrl |= CGC_PEX1;
+ pcie1_ioresouces_setup(pp);
+ break;
+ default:
+ panic("PCIe setup: invalid controller");
+ }
+ }
+}
+
+static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
+{
+ struct pcie_port *pp;
+
+ if (nr >= num_pcie_ports)
+ return 0;
+
+ pp = &pcie_port[nr];
+ pp->root_bus_nr = sys->busnr;
+
+ printk(KERN_INFO "PCI: bus%d uses PCIe port %d\n",
+ sys->busnr, pp->index);
+
+ /*
+ * Generic PCIe unit setup.
+ */
+ orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
+ orion_pcie_setup(pp->base, &kirkwood_mbus_dram_info);
+
+ sys->resource[0] = &pp->res[0];
+ sys->resource[1] = &pp->res[1];
+ sys->resource[2] = NULL;
+ sys->io_offset = 0;
return 1;
}
@@ -163,7 +242,7 @@ kirkwood_pcie_scan_bus(int nr, struct pci_sys_data *sys)
{
struct pci_bus *bus;
- if (nr == 0) {
+ if (nr < num_pcie_ports) {
bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
} else {
bus = NULL;
@@ -175,18 +254,45 @@ kirkwood_pcie_scan_bus(int nr, struct pci_sys_data *sys)
static int __init kirkwood_pcie_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
- return IRQ_KIRKWOOD_PCIE;
+ struct pcie_port *pp = bus_to_port(dev->bus->number);
+
+ return pp->irq;
}
static struct hw_pci kirkwood_pci __initdata = {
- .nr_controllers = 1,
+ .preinit = kirkwood_pcie_preinit,
.swizzle = pci_std_swizzle,
.setup = kirkwood_pcie_setup,
.scan = kirkwood_pcie_scan_bus,
.map_irq = kirkwood_pcie_map_irq,
};
-void __init kirkwood_pcie_init(void)
+static void __init add_pcie_port(int index, unsigned long base)
+{
+ printk(KERN_INFO "Kirkwood PCIe port %d: ", index);
+
+ if (orion_pcie_link_up((void __iomem *)base)) {
+ struct pcie_port *pp = &pcie_port[num_pcie_ports++];
+
+ printk(KERN_INFO "link up\n");
+
+ pp->index = index;
+ pp->root_bus_nr = -1;
+ pp->base = (void __iomem *)base;
+ spin_lock_init(&pp->conf_lock);
+ memset(pp->res, 0, sizeof(pp->res));
+ } else
+ printk(KERN_INFO "link down, ignoring\n");
+}
+
+void __init kirkwood_pcie_init(unsigned int portmask)
{
+ if (portmask & KW_PCIE0)
+ add_pcie_port(0, PCIE_VIRT_BASE);
+
+ if (portmask & KW_PCIE1)
+ add_pcie_port(1, PCIE1_VIRT_BASE);
+
+ kirkwood_pci.nr_controllers = num_pcie_ports;
pci_common_init(&kirkwood_pci);
}
diff --git a/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
index 3bf6304..c34718c 100644
--- a/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
+++ b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
@@ -71,7 +71,7 @@ static void __init rd88f6192_init(void)
static int __init rd88f6192_pci_init(void)
{
if (machine_is_rd88f6192_nas())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/rd88f6281-setup.c b/arch/arm/mach-kirkwood/rd88f6281-setup.c
index 31708dd..3d14771 100644
--- a/arch/arm/mach-kirkwood/rd88f6281-setup.c
+++ b/arch/arm/mach-kirkwood/rd88f6281-setup.c
@@ -107,7 +107,7 @@ static void __init rd88f6281_init(void)
static int __init rd88f6281_pci_init(void)
{
if (machine_is_rd88f6281())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c
index d23aff9..5c7dd85 100644
--- a/arch/arm/mach-kirkwood/ts219-setup.c
+++ b/arch/arm/mach-kirkwood/ts219-setup.c
@@ -111,7 +111,7 @@ static void __init qnap_ts219_init(void)
static int __init ts219_pci_init(void)
{
if (machine_is_ts219())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
diff --git a/arch/arm/mach-kirkwood/ts41x-setup.c b/arch/arm/mach-kirkwood/ts41x-setup.c
index ecd0d5f..a2c5f70 100644
--- a/arch/arm/mach-kirkwood/ts41x-setup.c
+++ b/arch/arm/mach-kirkwood/ts41x-setup.c
@@ -136,7 +136,7 @@ static void __init qnap_ts41x_init(void)
static int __init ts41x_pci_init(void)
{
if (machine_is_ts41x())
- kirkwood_pcie_init();
+ kirkwood_pcie_init(KW_PCIE0);
return 0;
}
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