aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/atheros/patches-2.6.28/100-board.patch441
-rw-r--r--target/linux/atheros/patches-2.6.28/105-ar2315_pci.patch298
2 files changed, 301 insertions, 438 deletions
diff --git a/target/linux/atheros/patches-2.6.28/100-board.patch b/target/linux/atheros/patches-2.6.28/100-board.patch
index e4fe7c5c66..2f7bb5b196 100644
--- a/target/linux/atheros/patches-2.6.28/100-board.patch
+++ b/target/linux/atheros/patches-2.6.28/100-board.patch
@@ -46,7 +46,7 @@
core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
--- /dev/null
+++ b/arch/mips/ar231x/Kconfig
-@@ -0,0 +1,27 @@
+@@ -0,0 +1,17 @@
+config ATHEROS_AR5312
+ bool "Atheros 5312/2312+ support"
+ depends on ATHEROS
@@ -64,19 +64,9 @@
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select GENERIC_GPIO
+ default y
-+
-+config ATHEROS_AR2315_PCI
-+ bool "PCI support"
-+ depends on ATHEROS_AR2315
-+ select HW_HAS_PCI
-+ select PCI
-+ select USB_ARCH_HAS_HCD
-+ select USB_ARCH_HAS_OHCI
-+ select USB_ARCH_HAS_EHCI
-+ default y
--- /dev/null
+++ b/arch/mips/ar231x/Makefile
-@@ -0,0 +1,14 @@
+@@ -0,0 +1,13 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
@@ -90,7 +80,6 @@
+obj-y += board.o prom.o devices.o
+obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
+obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
-+obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o
--- /dev/null
+++ b/arch/mips/ar231x/board.c
@@ -0,0 +1,247 @@
@@ -382,171 +371,6 @@
+{
+}
--- /dev/null
-+++ b/arch/mips/ar231x/reset.c
-@@ -0,0 +1,162 @@
-+#include <linux/module.h>
-+#include <linux/timer.h>
-+#include <linux/interrupt.h>
-+#include <linux/kobject.h>
-+#include <linux/workqueue.h>
-+#include <linux/skbuff.h>
-+#include <linux/netlink.h>
-+#include <net/sock.h>
-+#include <asm/uaccess.h>
-+#include <ar231x.h>
-+
-+#define AR531X_RESET_GPIO_IRQ (AR531X_GPIO_IRQ(bcfg->resetConfigGpio))
-+
-+struct event_t {
-+ struct work_struct wq;
-+ int set;
-+ unsigned long jiffies;
-+};
-+
-+static struct ar231x_boarddata *bcfg;
-+static struct timer_list rst_button_timer;
-+
-+extern struct sock *uevent_sock;
-+extern u64 uevent_next_seqnum(void);
-+static unsigned long seen;
-+
-+static inline void add_msg(struct sk_buff *skb, char *msg)
-+{
-+ char *scratch;
-+ scratch = skb_put(skb, strlen(msg) + 1);
-+ sprintf(scratch, msg);
-+}
-+
-+static void hotplug_button(struct work_struct *wq)
-+{
-+ struct sk_buff *skb;
-+ struct event_t *event;
-+ size_t len;
-+ char *scratch, *s;
-+ char buf[128];
-+
-+ event = container_of(wq, struct event_t, wq);
-+ if (!uevent_sock)
-+ goto done;
-+
-+ /* allocate message with the maximum possible size */
-+ s = event->set ? "pressed" : "released";
-+ len = strlen(s) + 2;
-+ skb = alloc_skb(len + 2048, GFP_KERNEL);
-+ if (!skb)
-+ goto done;
-+
-+ /* add header */
-+ scratch = skb_put(skb, len);
-+ sprintf(scratch, "%s@",s);
-+
-+ /* copy keys to our continuous event payload buffer */
-+ add_msg(skb, "HOME=/");
-+ add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
-+ add_msg(skb, "SUBSYSTEM=button");
-+ add_msg(skb, "BUTTON=reset");
-+ add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
-+ sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);
-+ add_msg(skb, buf);
-+ snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
-+ add_msg(skb, buf);
-+
-+ NETLINK_CB(skb).dst_group = 1;
-+ netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL);
-+
-+done:
-+ kfree(event);
-+}
-+
-+static int no_release_workaround = 1;
-+
-+static void
-+reset_button_poll(unsigned long unused)
-+{
-+ struct event_t *event;
-+ int gpio = ~0;
-+
-+ if(!no_release_workaround)
-+ return;
-+
-+ DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
-+ gpio &= 1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE);
-+ if(gpio)
-+ {
-+ rst_button_timer.expires = jiffies + (HZ / 4);
-+ add_timer(&rst_button_timer);
-+ } else {
-+ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
-+ if (!event)
-+ {
-+ printk("Could not alloc hotplug event\n");
-+ return;
-+ }
-+ event->set = 0;
-+ event->jiffies = jiffies;
-+ INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
-+ schedule_work(&event->wq);
-+ }
-+}
-+
-+static irqreturn_t button_handler(int irq, void *dev_id)
-+{
-+ static int pressed = 0;
-+ struct event_t *event;
-+ u32 gpio = ~0;
-+
-+ event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
-+ if (!event)
-+ return IRQ_NONE;
-+
-+ pressed = !pressed;
-+
-+ DO_AR2315(gpio = sysRegRead(AR2315_GPIO_DI);)
-+ gpio &= 1 << (irq - AR531X_GPIO_IRQ_BASE);
-+
-+ event->set = gpio;
-+ if(!event->set)
-+ no_release_workaround = 0;
-+
-+ event->jiffies = jiffies;
-+
-+ INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
-+ schedule_work(&event->wq);
-+
-+ seen = jiffies;
-+ if(event->set && no_release_workaround)
-+ mod_timer(&rst_button_timer, jiffies + (HZ / 4));
-+
-+ return IRQ_HANDLED;
-+}
-+
-+void ar231x_disable_reset_button(void)
-+{
-+ disable_irq(AR531X_RESET_GPIO_IRQ);
-+}
-+
-+EXPORT_SYMBOL(ar231x_disable_reset_button);
-+
-+int __init ar231x_init_reset(void)
-+{
-+ bcfg = (struct ar231x_boarddata *) board_config;
-+
-+ seen = jiffies;
-+
-+ init_timer(&rst_button_timer);
-+ rst_button_timer.function = reset_button_poll;
-+ rst_button_timer.expires = jiffies + HZ / 50;
-+ add_timer(&rst_button_timer);
-+
-+ request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar231x_reset", NULL);
-+
-+ return 0;
-+}
-+
-+
-+
-+module_init(ar231x_init_reset);
---- /dev/null
+++ b/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
@@ -0,0 +1,83 @@
+#ifndef __AR531X_PLATFORM_H
@@ -2271,242 +2095,8 @@
+}
+
--- /dev/null
-+++ b/arch/mips/ar231x/pci.c
-@@ -0,0 +1,231 @@
-+/*
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2
-+ * of the License, or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ */
-+
-+#include <linux/types.h>
-+#include <linux/pci.h>
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/mm.h>
-+#include <linux/spinlock.h>
-+#include <linux/delay.h>
-+#include <linux/irq.h>
-+#include <asm/bootinfo.h>
-+#include <asm/paccess.h>
-+#include <asm/irq_cpu.h>
-+#include <asm/io.h>
-+#include <ar231x_platform.h>
-+#include <ar231x.h>
-+#include <ar2315_regs.h>
-+
-+#define AR531X_MEM_BASE 0x80800000UL
-+#define AR531X_MEM_SIZE 0x00ffffffUL
-+#define AR531X_IO_SIZE 0x00007fffUL
-+
-+#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
-+
-+static unsigned long configspace;
-+
-+static int config_access(int devfn, int where, int size, u32 *ptr, bool write)
-+{
-+ unsigned long flags;
-+ int func = PCI_FUNC(devfn);
-+ int dev = PCI_SLOT(devfn);
-+ u32 value = 0;
-+ int err = 0;
-+ u32 addr;
-+
-+ if (((dev != 0) && (dev != 3)) || (func > 2))
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+
-+ /* Select Configuration access */
-+ local_irq_save(flags);
-+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
-+ mb();
-+
-+ addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where;
-+ if (size == 1)
-+ addr ^= 0x3;
-+ else if (size == 2)
-+ addr ^= 0x2;
-+
-+ if (write) {
-+ value = *ptr;
-+ if (size == 1)
-+ err = put_dbe(value, (u8 *) addr);
-+ else if (size == 2)
-+ err = put_dbe(value, (u16 *) addr);
-+ else if (size == 4)
-+ err = put_dbe(value, (u32 *) addr);
-+ } else {
-+ if (size == 1)
-+ err = get_dbe(value, (u8 *) addr);
-+ else if (size == 2)
-+ err = get_dbe(value, (u16 *) addr);
-+ else if (size == 4)
-+ err = get_dbe(value, (u32 *) addr);
-+ if (err)
-+ *ptr = 0xffffffff;
-+ else
-+ *ptr = value;
-+ }
-+
-+ /* Select Memory access */
-+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
-+ local_irq_restore(flags);
-+
-+ return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL);
-+}
-+
-+static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value)
-+{
-+ return config_access(devfn, where, size, value, 0);
-+}
-+
-+static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
-+{
-+ return config_access(devfn, where, size, &value, 1);
-+}
-+
-+struct pci_ops ar231x_pci_ops = {
-+ .read = ar231x_pci_read,
-+ .write = ar231x_pci_write,
-+};
-+
-+static struct resource ar231x_mem_resource = {
-+ .name = "AR531x PCI MEM",
-+ .start = AR531X_MEM_BASE,
-+ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000,
-+ .flags = IORESOURCE_MEM,
-+};
-+
-+static struct resource ar231x_io_resource = {
-+ .name = "AR531x PCI I/O",
-+ .start = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE,
-+ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - 1,
-+ .flags = IORESOURCE_IO,
-+};
-+
-+struct pci_controller ar231x_pci_controller = {
-+ .pci_ops = &ar231x_pci_ops,
-+ .mem_resource = &ar231x_mem_resource,
-+ .io_resource = &ar231x_io_resource,
-+ .mem_offset = 0x00000000UL,
-+ .io_offset = 0x00000000UL,
-+};
-+
-+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-+{
-+ return AR2315_IRQ_LCBUS_PCI;
-+}
-+
-+int pcibios_plat_dev_init(struct pci_dev *dev)
-+{
-+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5);
-+ pci_write_config_word(dev, 0x40, 0);
-+
-+ /* Clear any pending Abort or external Interrupts
-+ * and enable interrupt processing */
-+ ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0);
-+ ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
-+ ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
-+ ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE);
-+
-+ return 0;
-+}
-+
-+static void
-+ar2315_pci_fixup(struct pci_dev *dev)
-+{
-+ unsigned int devfn = dev->devfn;
-+
-+ if (dev->bus->number != 0)
-+ return;
-+
-+ /* Only fix up the PCI host settings */
-+ if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0))
-+ return;
-+
-+ /* Fix up MBARs */
-+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0);
-+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1);
-+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2);
-+ pci_write_config_dword(dev, PCI_COMMAND,
-+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
-+ PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR |
-+ PCI_COMMAND_FAST_BACK);
-+}
-+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup);
-+
-+static int __init
-+ar2315_pci_init(void)
-+{
-+ u32 reg;
-+
-+ if (!IS_2315())
-+ return -ENODEV;
-+
-+ configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */
-+ ar231x_pci_controller.io_map_base =
-+ (unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE);
-+ set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */
-+
-+ reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
-+ msleep(10);
-+
-+ reg &= ~AR2315_RESET_PCIDMA;
-+ ar231x_write_reg(AR2315_RESET, reg);
-+ msleep(10);
-+
-+ ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
-+ AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
-+
-+ ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
-+ (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
-+ ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
-+ ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
-+ AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
-+ (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT));
-+
-+ /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
-+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
-+ AR2315_PCIRST_LOW);
-+ msleep(100);
-+
-+ /* Bring the PCI out of reset */
-+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
-+ AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
-+
-+ ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
-+ 0x1E | /* 1GB uncached */
-+ (1 << 5) | /* Enable uncached */
-+ (0x2 << 30) /* Base: 0x80000000 */
-+ );
-+ ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
-+
-+ msleep(500);
-+
-+ /* dirty hack - anyone with a datasheet that knows the memory map ? */
-+ ioport_resource.start = 0x10000000;
-+ ioport_resource.end = 0xffffffff;
-+ iomem_resource.start = 0x10000000;
-+ iomem_resource.end = 0xffffffff;
-+
-+ register_pci_controller(&ar231x_pci_controller);
-+
-+ return 0;
-+}
-+
-+arch_initcall(ar2315_pci_init);
---- /dev/null
+++ b/arch/mips/ar231x/ar2315.c
-@@ -0,0 +1,688 @@
+@@ -0,0 +1,663 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
@@ -2570,27 +2160,6 @@
+ do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
+}
+
-+#ifdef CONFIG_ATHEROS_AR2315_PCI
-+static inline void pci_abort_irq(void)
-+{
-+ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
-+}
-+
-+static inline void pci_ack_irq(void)
-+{
-+ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT);
-+}
-+
-+void ar2315_pci_irq(int irq)
-+{
-+ if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT)
-+ pci_abort_irq();
-+ else {
-+ do_IRQ(irq);
-+ pci_ack_irq();
-+ }
-+}
-+#endif /* CONFIG_ATHEROS_AR2315_PCI */
+
+/*
+ * Called when an interrupt is received, this function
@@ -2609,10 +2178,6 @@
+ do_IRQ(AR2315_IRQ_WLAN0_INTRS);
+ else if (pending & CAUSEF_IP4)
+ do_IRQ(AR2315_IRQ_ENET0_INTRS);
-+#ifdef CONFIG_ATHEROS_AR2315_PCI
-+ else if (pending & CAUSEF_IP5)
-+ ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI);
-+#endif
+ else if (pending & CAUSEF_IP2) {
+ unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
+
diff --git a/target/linux/atheros/patches-2.6.28/105-ar2315_pci.patch b/target/linux/atheros/patches-2.6.28/105-ar2315_pci.patch
new file mode 100644
index 0000000000..389a0ec214
--- /dev/null
+++ b/target/linux/atheros/patches-2.6.28/105-ar2315_pci.patch
@@ -0,0 +1,298 @@
+--- a/arch/mips/ar231x/Makefile
++++ b/arch/mips/ar231x/Makefile
+@@ -11,3 +11,4 @@
+ obj-y += board.o prom.o devices.o
+ obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
+ obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
++obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o
+--- /dev/null
++++ b/arch/mips/ar231x/pci.c
+@@ -0,0 +1,231 @@
++/*
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#include <linux/types.h>
++#include <linux/pci.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/mm.h>
++#include <linux/spinlock.h>
++#include <linux/delay.h>
++#include <linux/irq.h>
++#include <asm/bootinfo.h>
++#include <asm/paccess.h>
++#include <asm/irq_cpu.h>
++#include <asm/io.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include <ar2315_regs.h>
++
++#define AR531X_MEM_BASE 0x80800000UL
++#define AR531X_MEM_SIZE 0x00ffffffUL
++#define AR531X_IO_SIZE 0x00007fffUL
++
++#define IS_2315() (current_cpu_data.cputype == CPU_4KEC)
++
++static unsigned long configspace;
++
++static int config_access(int devfn, int where, int size, u32 *ptr, bool write)
++{
++ unsigned long flags;
++ int func = PCI_FUNC(devfn);
++ int dev = PCI_SLOT(devfn);
++ u32 value = 0;
++ int err = 0;
++ u32 addr;
++
++ if (((dev != 0) && (dev != 3)) || (func > 2))
++ return PCIBIOS_DEVICE_NOT_FOUND;
++
++ /* Select Configuration access */
++ local_irq_save(flags);
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
++ mb();
++
++ addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where;
++ if (size == 1)
++ addr ^= 0x3;
++ else if (size == 2)
++ addr ^= 0x2;
++
++ if (write) {
++ value = *ptr;
++ if (size == 1)
++ err = put_dbe(value, (u8 *) addr);
++ else if (size == 2)
++ err = put_dbe(value, (u16 *) addr);
++ else if (size == 4)
++ err = put_dbe(value, (u32 *) addr);
++ } else {
++ if (size == 1)
++ err = get_dbe(value, (u8 *) addr);
++ else if (size == 2)
++ err = get_dbe(value, (u16 *) addr);
++ else if (size == 4)
++ err = get_dbe(value, (u32 *) addr);
++ if (err)
++ *ptr = 0xffffffff;
++ else
++ *ptr = value;
++ }
++
++ /* Select Memory access */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
++ local_irq_restore(flags);
++
++ return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL);
++}
++
++static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value)
++{
++ return config_access(devfn, where, size, value, 0);
++}
++
++static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
++{
++ return config_access(devfn, where, size, &value, 1);
++}
++
++struct pci_ops ar231x_pci_ops = {
++ .read = ar231x_pci_read,
++ .write = ar231x_pci_write,
++};
++
++static struct resource ar231x_mem_resource = {
++ .name = "AR531x PCI MEM",
++ .start = AR531X_MEM_BASE,
++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000,
++ .flags = IORESOURCE_MEM,
++};
++
++static struct resource ar231x_io_resource = {
++ .name = "AR531x PCI I/O",
++ .start = AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE,
++ .end = AR531X_MEM_BASE + AR531X_MEM_SIZE - 1,
++ .flags = IORESOURCE_IO,
++};
++
++struct pci_controller ar231x_pci_controller = {
++ .pci_ops = &ar231x_pci_ops,
++ .mem_resource = &ar231x_mem_resource,
++ .io_resource = &ar231x_io_resource,
++ .mem_offset = 0x00000000UL,
++ .io_offset = 0x00000000UL,
++};
++
++int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
++{
++ return AR2315_IRQ_LCBUS_PCI;
++}
++
++int pcibios_plat_dev_init(struct pci_dev *dev)
++{
++ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5);
++ pci_write_config_word(dev, 0x40, 0);
++
++ /* Clear any pending Abort or external Interrupts
++ * and enable interrupt processing */
++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0);
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++ ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++ ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE);
++
++ return 0;
++}
++
++static void
++ar2315_pci_fixup(struct pci_dev *dev)
++{
++ unsigned int devfn = dev->devfn;
++
++ if (dev->bus->number != 0)
++ return;
++
++ /* Only fix up the PCI host settings */
++ if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0))
++ return;
++
++ /* Fix up MBARs */
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0);
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1);
++ pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2);
++ pci_write_config_dword(dev, PCI_COMMAND,
++ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
++ PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR |
++ PCI_COMMAND_FAST_BACK);
++}
++DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup);
++
++static int __init
++ar2315_pci_init(void)
++{
++ u32 reg;
++
++ if (!IS_2315())
++ return -ENODEV;
++
++ configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */
++ ar231x_pci_controller.io_map_base =
++ (unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE);
++ set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */
++
++ reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
++ msleep(10);
++
++ reg &= ~AR2315_RESET_PCIDMA;
++ ar231x_write_reg(AR2315_RESET, reg);
++ msleep(10);
++
++ ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
++ AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
++
++ ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
++ (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
++ ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
++ ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
++ AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
++ (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT));
++
++ /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++ AR2315_PCIRST_LOW);
++ msleep(100);
++
++ /* Bring the PCI out of reset */
++ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++ AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
++
++ ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
++ 0x1E | /* 1GB uncached */
++ (1 << 5) | /* Enable uncached */
++ (0x2 << 30) /* Base: 0x80000000 */
++ );
++ ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
++
++ msleep(500);
++
++ /* dirty hack - anyone with a datasheet that knows the memory map ? */
++ ioport_resource.start = 0x10000000;
++ ioport_resource.end = 0xffffffff;
++ iomem_resource.start = 0x10000000;
++ iomem_resource.end = 0xffffffff;
++
++ register_pci_controller(&ar231x_pci_controller);
++
++ return 0;
++}
++
++arch_initcall(ar2315_pci_init);
+--- a/arch/mips/ar231x/Kconfig
++++ b/arch/mips/ar231x/Kconfig
+@@ -15,3 +15,13 @@ config ATHEROS_AR2315
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select GENERIC_GPIO
+ default y
++
++config ATHEROS_AR2315_PCI
++ bool "PCI support"
++ depends on ATHEROS_AR2315
++ select HW_HAS_PCI
++ select PCI
++ select USB_ARCH_HAS_HCD
++ select USB_ARCH_HAS_OHCI
++ select USB_ARCH_HAS_EHCI
++ default y
+--- a/arch/mips/ar231x/ar2315.c
++++ b/arch/mips/ar231x/ar2315.c
+@@ -61,6 +61,27 @@ static inline void ar2315_gpio_irq(void)
+ do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
+ }
+
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++static inline void pci_abort_irq(void)
++{
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
++}
++
++static inline void pci_ack_irq(void)
++{
++ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT);
++}
++
++void ar2315_pci_irq(int irq)
++{
++ if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT)
++ pci_abort_irq();
++ else {
++ do_IRQ(irq);
++ pci_ack_irq();
++ }
++}
++#endif /* CONFIG_ATHEROS_AR2315_PCI */
+
+ /*
+ * Called when an interrupt is received, this function
+@@ -79,6 +100,10 @@ ar2315_irq_dispatch(void)
+ do_IRQ(AR2315_IRQ_WLAN0_INTRS);
+ else if (pending & CAUSEF_IP4)
+ do_IRQ(AR2315_IRQ_ENET0_INTRS);
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++ else if (pending & CAUSEF_IP5)
++ ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI);
++#endif
+ else if (pending & CAUSEF_IP2) {
+ unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 04:37:58 +0000