core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
--- /dev/null
+++ b/arch/mips/ar231x/Kconfig
-@@ -0,0 +1,27 @@
+@@ -0,0 +1,17 @@
+config ATHEROS_AR5312
+ bool "Atheros 5312/2312+ support"
+ depends on ATHEROS
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select GENERIC_GPIO
+ default y
-+
-+config ATHEROS_AR2315_PCI
-+ bool "PCI support"
-+ depends on ATHEROS_AR2315
-+ select HW_HAS_PCI
-+ select PCI
-+ select USB_ARCH_HAS_HCD
-+ select USB_ARCH_HAS_OHCI
-+ select USB_ARCH_HAS_EHCI
-+ default y
--- /dev/null
+++ b/arch/mips/ar231x/Makefile
-@@ -0,0 +1,14 @@
+@@ -0,0 +1,13 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+obj-y += board.o prom.o devices.o
+obj-$(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 @@
+{
+}
--- /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
+}
+
--- /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 +1,673 @@
+/*
+ * 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
+static inline void ar2315_gpio_irq(void)
+{
+ u32 pend;
-+ int bit;
++ int bit = -1;
+
+ /* only do one gpio interrupt at a time */
+ pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask;
-+ if (!pend)
-+ return;
+
-+ bit = fls(pend);
-+ pend ^= (1 << bit);
-+ gpiointval ^= (1 << bit);
++ if (pend) {
++ bit = fls(pend) - 1;
++ printk("GPIO IRQ: pend=0x%08x, val=%08x, bit=%d\n", pend, gpiointval, bit);
++ pend &= ~(1 << bit);
++ gpiointval ^= (1 << bit);
++ printk("AFTER IRQ: pend=0x%08x, val=%08x, bit=%d\n", pend, gpiointval, bit);
++ }
+
-+ /* ACK the interrupt only if we handled all bits */
+ if (!pend)
-+ ar231x_write_reg(AR2315_ISR, ar231x_read_reg(AR2315_IMR) | ~AR2315_ISR_GPIO);
-+
-+ do_IRQ(AR531X_GPIO_IRQ_BASE + fls(pend) - 1);
-+}
++ ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
+
-+#ifdef CONFIG_ATHEROS_AR2315_PCI
-+static inline void pci_abort_irq(void)
-+{
-+ ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
++ if (bit >= 0)
++ do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
+}
+
-+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
+ 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);
+
+{
+ u32 reg;
+
-+
+ reg = ar231x_read_reg(AR2315_GPIO_INT);
+ reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M);
+ reg |= gpio | AR2315_GPIO_INT_LVL(level);
+static void ar2315_gpio_intr_enable(unsigned int irq)
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
-+ u32 reg;
-+
-+ gpiointmask &= ~(1 << gpio);
+
+ /* reconfigure GPIO line as input */
-+ reg = ar231x_read_reg(AR2315_GPIO_CR);
-+ reg &= ~(AR2315_GPIO_CR_M(gpio));
-+ reg |= AR2315_GPIO_CR_I(gpio);
-+ ar231x_write_reg(AR2315_GPIO_CR, reg);
++ ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
+
+ /* Enable interrupt with edge detection */
++ gpiointmask |= (1 << gpio);
+ ar2315_set_gpiointmask(gpio, 3);
+}
+
+{
+ unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
+
-+ gpiointmask |= (1 << gpio);
-+
+ /* Disable interrupt */
++ gpiointmask &= ~(1 << gpio);
+ ar2315_set_gpiointmask(gpio, 0);
+}
+
++static unsigned int
++ar2315_gpio_intr_startup(unsigned int irq)
++{
++ ar2315_gpio_intr_enable(irq);
++ return 0;
++}
++
++static void
++ar2315_gpio_intr_end(unsigned int irq)
++{
++ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++ ar2315_gpio_intr_enable(irq);
++}
++
+static struct irq_chip ar2315_gpio_intr_controller = {
+ .typename = "AR2315-GPIO",
++ .startup = ar2315_gpio_intr_startup,
++ .shutdown = ar2315_gpio_intr_disable,
++ .enable = ar2315_gpio_intr_enable,
+ .disable = ar2315_gpio_intr_disable,
+ .ack = ar2315_gpio_intr_disable,
-+ .mask_ack = ar2315_gpio_intr_disable,
-+ .unmask = ar2315_gpio_intr_enable,
-+ .eoi = ar2315_gpio_intr_enable,
++ .end = ar2315_gpio_intr_end,
+};
+
+static void
projects / 10.03 / openwrt.git / blobdiff