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-rw-r--r--arch/mips/bcm47xx/Makefile6
-rw-r--r--arch/mips/bcm47xx/gpio.c79
-rw-r--r--arch/mips/bcm47xx/irq.c55
-rw-r--r--arch/mips/bcm47xx/prom.c158
-rw-r--r--arch/mips/bcm47xx/serial.c52
-rw-r--r--arch/mips/bcm47xx/setup.c123
-rw-r--r--arch/mips/bcm47xx/time.c55
-rw-r--r--arch/mips/bcm47xx/wgt634u.c64
8 files changed, 592 insertions, 0 deletions
diff --git a/arch/mips/bcm47xx/Makefile b/arch/mips/bcm47xx/Makefile
new file mode 100644
index 000000000000..35294b12d638
--- /dev/null
+++ b/arch/mips/bcm47xx/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the BCM47XX specific kernel interface routines
+# under Linux.
+#
+
+obj-y := gpio.o irq.o prom.o serial.o setup.o time.o wgt634u.o
diff --git a/arch/mips/bcm47xx/gpio.c b/arch/mips/bcm47xx/gpio.c
new file mode 100644
index 000000000000..f5a53acf995a
--- /dev/null
+++ b/arch/mips/bcm47xx/gpio.c
@@ -0,0 +1,79 @@
+/*
+ * 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
+ * for more details.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+#include <linux/ssb/ssb_driver_extif.h>
+#include <asm/mach-bcm47xx/bcm47xx.h>
+#include <asm/mach-bcm47xx/gpio.h>
+
+int bcm47xx_gpio_to_irq(unsigned gpio)
+{
+ if (ssb_bcm47xx.chipco.dev)
+ return ssb_mips_irq(ssb_bcm47xx.chipco.dev) + 2;
+ else if (ssb_bcm47xx.extif.dev)
+ return ssb_mips_irq(ssb_bcm47xx.extif.dev) + 2;
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_to_irq);
+
+int bcm47xx_gpio_get_value(unsigned gpio)
+{
+ if (ssb_bcm47xx.chipco.dev)
+ return ssb_chipco_gpio_in(&ssb_bcm47xx.chipco, 1 << gpio);
+ else if (ssb_bcm47xx.extif.dev)
+ return ssb_extif_gpio_in(&ssb_bcm47xx.extif, 1 << gpio);
+ else
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_get_value);
+
+void bcm47xx_gpio_set_value(unsigned gpio, int value)
+{
+ if (ssb_bcm47xx.chipco.dev)
+ ssb_chipco_gpio_out(&ssb_bcm47xx.chipco,
+ 1 << gpio,
+ value ? 1 << gpio : 0);
+ else if (ssb_bcm47xx.extif.dev)
+ ssb_extif_gpio_out(&ssb_bcm47xx.extif,
+ 1 << gpio,
+ value ? 1 << gpio : 0);
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_set_value);
+
+int bcm47xx_gpio_direction_input(unsigned gpio)
+{
+ if (ssb_bcm47xx.chipco.dev && (gpio < BCM47XX_CHIPCO_GPIO_LINES))
+ ssb_chipco_gpio_outen(&ssb_bcm47xx.chipco,
+ 1 << gpio, 0);
+ else if (ssb_bcm47xx.extif.dev && (gpio < BCM47XX_EXTIF_GPIO_LINES))
+ ssb_extif_gpio_outen(&ssb_bcm47xx.extif,
+ 1 << gpio, 0);
+ else
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_direction_input);
+
+int bcm47xx_gpio_direction_output(unsigned gpio, int value)
+{
+ bcm47xx_gpio_set_value(gpio, value);
+
+ if (ssb_bcm47xx.chipco.dev && (gpio < BCM47XX_CHIPCO_GPIO_LINES))
+ ssb_chipco_gpio_outen(&ssb_bcm47xx.chipco,
+ 1 << gpio, 1 << gpio);
+ else if (ssb_bcm47xx.extif.dev && (gpio < BCM47XX_EXTIF_GPIO_LINES))
+ ssb_extif_gpio_outen(&ssb_bcm47xx.extif,
+ 1 << gpio, 1 << gpio);
+ else
+ return -EINVAL;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_direction_output);
+
diff --git a/arch/mips/bcm47xx/irq.c b/arch/mips/bcm47xx/irq.c
new file mode 100644
index 000000000000..325757acd020
--- /dev/null
+++ b/arch/mips/bcm47xx/irq.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq_cpu.h>
+
+void plat_irq_dispatch(void)
+{
+ u32 cause;
+
+ cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
+
+ clear_c0_status(cause);
+
+ if (cause & CAUSEF_IP7)
+ do_IRQ(7);
+ if (cause & CAUSEF_IP2)
+ do_IRQ(2);
+ if (cause & CAUSEF_IP3)
+ do_IRQ(3);
+ if (cause & CAUSEF_IP4)
+ do_IRQ(4);
+ if (cause & CAUSEF_IP5)
+ do_IRQ(5);
+ if (cause & CAUSEF_IP6)
+ do_IRQ(6);
+}
+
+void __init arch_init_irq(void)
+{
+ mips_cpu_irq_init();
+}
diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
new file mode 100644
index 000000000000..079e33d52783
--- /dev/null
+++ b/arch/mips/bcm47xx/prom.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <asm/bootinfo.h>
+#include <asm/fw/cfe/cfe_api.h>
+#include <asm/fw/cfe/cfe_error.h>
+
+static int cfe_cons_handle;
+
+const char *get_system_type(void)
+{
+ return "Broadcom BCM47XX";
+}
+
+void prom_putchar(char c)
+{
+ while (cfe_write(cfe_cons_handle, &c, 1) == 0)
+ ;
+}
+
+static __init void prom_init_cfe(void)
+{
+ uint32_t cfe_ept;
+ uint32_t cfe_handle;
+ uint32_t cfe_eptseal;
+ int argc = fw_arg0;
+ char **envp = (char **) fw_arg2;
+ int *prom_vec = (int *) fw_arg3;
+
+ /*
+ * Check if a loader was used; if NOT, the 4 arguments are
+ * what CFE gives us (handle, 0, EPT and EPTSEAL)
+ */
+ if (argc < 0) {
+ cfe_handle = (uint32_t)argc;
+ cfe_ept = (uint32_t)envp;
+ cfe_eptseal = (uint32_t)prom_vec;
+ } else {
+ if ((int)prom_vec < 0) {
+ /*
+ * Old loader; all it gives us is the handle,
+ * so use the "known" entrypoint and assume
+ * the seal.
+ */
+ cfe_handle = (uint32_t)prom_vec;
+ cfe_ept = 0xBFC00500;
+ cfe_eptseal = CFE_EPTSEAL;
+ } else {
+ /*
+ * Newer loaders bundle the handle/ept/eptseal
+ * Note: prom_vec is in the loader's useg
+ * which is still alive in the TLB.
+ */
+ cfe_handle = prom_vec[0];
+ cfe_ept = prom_vec[2];
+ cfe_eptseal = prom_vec[3];
+ }
+ }
+
+ if (cfe_eptseal != CFE_EPTSEAL) {
+ /* too early for panic to do any good */
+ printk(KERN_ERR "CFE's entrypoint seal doesn't match.");
+ while (1) ;
+ }
+
+ cfe_init(cfe_handle, cfe_ept);
+}
+
+static __init void prom_init_console(void)
+{
+ /* Initialize CFE console */
+ cfe_cons_handle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE);
+}
+
+static __init void prom_init_cmdline(void)
+{
+ char buf[CL_SIZE];
+
+ /* Get the kernel command line from CFE */
+ if (cfe_getenv("LINUX_CMDLINE", buf, CL_SIZE) >= 0) {
+ buf[CL_SIZE-1] = 0;
+ strcpy(arcs_cmdline, buf);
+ }
+
+ /* Force a console handover by adding a console= argument if needed,
+ * as CFE is not available anymore later in the boot process. */
+ if ((strstr(arcs_cmdline, "console=")) == NULL) {
+ /* Try to read the default serial port used by CFE */
+ if ((cfe_getenv("BOOT_CONSOLE", buf, CL_SIZE) < 0)
+ || (strncmp("uart", buf, 4)))
+ /* Default to uart0 */
+ strcpy(buf, "uart0");
+
+ /* Compute the new command line */
+ snprintf(arcs_cmdline, CL_SIZE, "%s console=ttyS%c,115200",
+ arcs_cmdline, buf[4]);
+ }
+}
+
+static __init void prom_init_mem(void)
+{
+ unsigned long mem;
+
+ /* Figure out memory size by finding aliases.
+ *
+ * We should theoretically use the mapping from CFE using cfe_enummem().
+ * However as the BCM47XX is mostly used on low-memory systems, we
+ * want to reuse the memory used by CFE (around 4MB). That means cfe_*
+ * functions stop to work at some point during the boot, we should only
+ * call them at the beginning of the boot.
+ */
+ for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
+ if (*(unsigned long *)((unsigned long)(prom_init) + mem) ==
+ *(unsigned long *)(prom_init))
+ break;
+ }
+
+ add_memory_region(0, mem, BOOT_MEM_RAM);
+}
+
+void __init prom_init(void)
+{
+ prom_init_cfe();
+ prom_init_console();
+ prom_init_cmdline();
+ prom_init_mem();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
diff --git a/arch/mips/bcm47xx/serial.c b/arch/mips/bcm47xx/serial.c
new file mode 100644
index 000000000000..59c11afdb2ab
--- /dev/null
+++ b/arch/mips/bcm47xx/serial.c
@@ -0,0 +1,52 @@
+/*
+ * 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
+ * for more details.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/ssb/ssb.h>
+#include <bcm47xx.h>
+
+static struct plat_serial8250_port uart8250_data[5];
+
+static struct platform_device uart8250_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = uart8250_data,
+ },
+};
+
+static int __init uart8250_init(void)
+{
+ int i;
+ struct ssb_mipscore *mcore = &(ssb_bcm47xx.mipscore);
+
+ memset(&uart8250_data, 0, sizeof(uart8250_data));
+
+ for (i = 0; i < mcore->nr_serial_ports; i++) {
+ struct plat_serial8250_port *p = &(uart8250_data[i]);
+ struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);
+
+ p->mapbase = (unsigned int) ssb_port->regs;
+ p->membase = (void *) ssb_port->regs;
+ p->irq = ssb_port->irq + 2;
+ p->uartclk = ssb_port->baud_base;
+ p->regshift = ssb_port->reg_shift;
+ p->iotype = UPIO_MEM;
+ p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+ }
+ return platform_device_register(&uart8250_device);
+}
+
+module_init(uart8250_init);
+
+MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("8250 UART probe driver for the BCM47XX platforms");
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
new file mode 100644
index 000000000000..1b6b0fa5028f
--- /dev/null
+++ b/arch/mips/bcm47xx/setup.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de>
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/ssb/ssb.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <bcm47xx.h>
+#include <asm/fw/cfe/cfe_api.h>
+
+struct ssb_bus ssb_bcm47xx;
+EXPORT_SYMBOL(ssb_bcm47xx);
+
+static void bcm47xx_machine_restart(char *command)
+{
+ printk(KERN_ALERT "Please stand by while rebooting the system...\n");
+ local_irq_disable();
+ /* Set the watchdog timer to reset immediately */
+ ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 1);
+ while (1)
+ cpu_relax();
+}
+
+static void bcm47xx_machine_halt(void)
+{
+ /* Disable interrupts and watchdog and spin forever */
+ local_irq_disable();
+ ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 0);
+ while (1)
+ cpu_relax();
+}
+
+static void str2eaddr(char *str, char *dest)
+{
+ int i = 0;
+
+ if (str == NULL) {
+ memset(dest, 0, 6);
+ return;
+ }
+
+ for (;;) {
+ dest[i++] = (char) simple_strtoul(str, NULL, 16);
+ str += 2;
+ if (!*str++ || i == 6)
+ break;
+ }
+}
+
+static int bcm47xx_get_invariants(struct ssb_bus *bus,
+ struct ssb_init_invariants *iv)
+{
+ char buf[100];
+
+ /* Fill boardinfo structure */
+ memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
+
+ if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0)
+ iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
+ if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0)
+ iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
+ if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0)
+ iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0);
+
+ /* Fill sprom structure */
+ memset(&(iv->sprom), 0, sizeof(struct ssb_sprom));
+ iv->sprom.revision = 3;
+
+ if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
+ str2eaddr(buf, iv->sprom.r1.et0mac);
+ if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
+ str2eaddr(buf, iv->sprom.r1.et1mac);
+ if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0)
+ iv->sprom.r1.et0phyaddr = simple_strtoul(buf, NULL, 10);
+ if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0)
+ iv->sprom.r1.et1phyaddr = simple_strtoul(buf, NULL, 10);
+ if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0)
+ iv->sprom.r1.et0mdcport = simple_strtoul(buf, NULL, 10);
+ if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0)
+ iv->sprom.r1.et1mdcport = simple_strtoul(buf, NULL, 10);
+
+ return 0;
+}
+
+void __init plat_mem_setup(void)
+{
+ int err;
+
+ err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
+ bcm47xx_get_invariants);
+ if (err)
+ panic("Failed to initialize SSB bus (err %d)\n", err);
+
+ _machine_restart = bcm47xx_machine_restart;
+ _machine_halt = bcm47xx_machine_halt;
+ pm_power_off = bcm47xx_machine_halt;
+}
+
diff --git a/arch/mips/bcm47xx/time.c b/arch/mips/bcm47xx/time.c
new file mode 100644
index 000000000000..0ab4676c8bd3
--- /dev/null
+++ b/arch/mips/bcm47xx/time.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/init.h>
+#include <linux/ssb/ssb.h>
+#include <asm/time.h>
+#include <bcm47xx.h>
+
+void __init plat_time_init(void)
+{
+ unsigned long hz;
+
+ /*
+ * Use deterministic values for initial counter interrupt
+ * so that calibrate delay avoids encountering a counter wrap.
+ */
+ write_c0_count(0);
+ write_c0_compare(0xffff);
+
+ hz = ssb_cpu_clock(&ssb_bcm47xx.mipscore) / 2;
+ if (!hz)
+ hz = 100000000;
+
+ /* Set MIPS counter frequency for fixed_rate_gettimeoffset() */
+ mips_hpt_frequency = hz;
+}
+
+void __init
+plat_timer_setup(struct irqaction *irq)
+{
+ /* Enable the timer interrupt */
+ setup_irq(7, irq);
+}
diff --git a/arch/mips/bcm47xx/wgt634u.c b/arch/mips/bcm47xx/wgt634u.c
new file mode 100644
index 000000000000..5a017eaee712
--- /dev/null
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -0,0 +1,64 @@
+/*
+ * 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
+ * for more details.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/leds.h>
+#include <linux/ssb/ssb.h>
+#include <asm/mach-bcm47xx/bcm47xx.h>
+
+/* GPIO definitions for the WGT634U */
+#define WGT634U_GPIO_LED 3
+#define WGT634U_GPIO_RESET 2
+#define WGT634U_GPIO_TP1 7
+#define WGT634U_GPIO_TP2 6
+#define WGT634U_GPIO_TP3 5
+#define WGT634U_GPIO_TP4 4
+#define WGT634U_GPIO_TP5 1
+
+static struct gpio_led wgt634u_leds[] = {
+ {
+ .name = "power",
+ .gpio = WGT634U_GPIO_LED,
+ .active_low = 1,
+ .default_trigger = "heartbeat",
+ },
+};
+
+static struct gpio_led_platform_data wgt634u_led_data = {
+ .num_leds = ARRAY_SIZE(wgt634u_leds),
+ .leds = wgt634u_leds,
+};
+
+static struct platform_device wgt634u_gpio_leds = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &wgt634u_led_data,
+ }
+};
+
+static int __init wgt634u_init(void)
+{
+ /* There is no easy way to detect that we are running on a WGT634U
+ * machine. Use the MAC address as an heuristic. Netgear Inc. has
+ * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
+ */
+
+ u8 *et0mac = ssb_bcm47xx.sprom.r1.et0mac;
+
+ if (et0mac[0] == 0x00 &&
+ ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
+ (et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
+ return platform_device_register(&wgt634u_gpio_leds);
+ else
+ return -ENODEV;
+}
+
+module_init(wgt634u_init);
+
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.