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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 22:21:23 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 22:21:23 -0400
commitdd6d1844af33acb4edd0a40b1770d091a22c94be (patch)
treee6bd3549919773a13b770324a4dddb51b194b452 /arch/mips/bcm47xx
parent19f71153b9be219756c6b2757921433a69b7975c (diff)
parentaaf76a3245c02faba51c96b9a340c14d6bb0dcc0 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (80 commits) [MIPS] tlbex.c: Cleanup __init usage. [MIPS] WRPPMC serial support move to platform device [MIPS] R1: Fix hazard barriers to make kernels work on R2 also. [MIPS] VPE: reimplement ELF loader. [MIPS] cleanup WRPPMC include files [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type. [MIPS] SMP: Use ISO C struct initializer for local structs. [MIPS] SMP: Kill useless casts. [MIPS] Kill num_online_cpus() loops. [MIPS] SMP: Implement smp_call_function_mask(). [MIPS] Make facility to convert CPU types to strings generally available. [MIPS] Convert list of CPU types from #define to enum. [MIPS] Optimize get_unaligned / put_unaligned implementations. [MIPS] checkfiles: Fix "need space after that ','" errors. [MIPS] Fix "no space between function name and open parenthesis" warnings. [MIPS] Allow hardwiring of the CPU type to a single type for optimization. [MIPS] tlbex: Size optimize code by declaring a few functions inline. [MIPS] pg-r4k.c: Dump the generated code [MIPS] Cobalt: Remove cobalt_machine_power_off() [MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.c ...
Diffstat (limited to 'arch/mips/bcm47xx')
-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 @@
1#
2# Makefile for the BCM47XX specific kernel interface routines
3# under Linux.
4#
5
6obj-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 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
7 */
8
9#include <linux/ssb/ssb.h>
10#include <linux/ssb/ssb_driver_chipcommon.h>
11#include <linux/ssb/ssb_driver_extif.h>
12#include <asm/mach-bcm47xx/bcm47xx.h>
13#include <asm/mach-bcm47xx/gpio.h>
14
15int bcm47xx_gpio_to_irq(unsigned gpio)
16{
17 if (ssb_bcm47xx.chipco.dev)
18 return ssb_mips_irq(ssb_bcm47xx.chipco.dev) + 2;
19 else if (ssb_bcm47xx.extif.dev)
20 return ssb_mips_irq(ssb_bcm47xx.extif.dev) + 2;
21 else
22 return -EINVAL;
23}
24EXPORT_SYMBOL_GPL(bcm47xx_gpio_to_irq);
25
26int bcm47xx_gpio_get_value(unsigned gpio)
27{
28 if (ssb_bcm47xx.chipco.dev)
29 return ssb_chipco_gpio_in(&ssb_bcm47xx.chipco, 1 << gpio);
30 else if (ssb_bcm47xx.extif.dev)
31 return ssb_extif_gpio_in(&ssb_bcm47xx.extif, 1 << gpio);
32 else
33 return 0;
34}
35EXPORT_SYMBOL_GPL(bcm47xx_gpio_get_value);
36
37void bcm47xx_gpio_set_value(unsigned gpio, int value)
38{
39 if (ssb_bcm47xx.chipco.dev)
40 ssb_chipco_gpio_out(&ssb_bcm47xx.chipco,
41 1 << gpio,
42 value ? 1 << gpio : 0);
43 else if (ssb_bcm47xx.extif.dev)
44 ssb_extif_gpio_out(&ssb_bcm47xx.extif,
45 1 << gpio,
46 value ? 1 << gpio : 0);
47}
48EXPORT_SYMBOL_GPL(bcm47xx_gpio_set_value);
49
50int bcm47xx_gpio_direction_input(unsigned gpio)
51{
52 if (ssb_bcm47xx.chipco.dev && (gpio < BCM47XX_CHIPCO_GPIO_LINES))
53 ssb_chipco_gpio_outen(&ssb_bcm47xx.chipco,
54 1 << gpio, 0);
55 else if (ssb_bcm47xx.extif.dev && (gpio < BCM47XX_EXTIF_GPIO_LINES))
56 ssb_extif_gpio_outen(&ssb_bcm47xx.extif,
57 1 << gpio, 0);
58 else
59 return -EINVAL;
60 return 0;
61}
62EXPORT_SYMBOL_GPL(bcm47xx_gpio_direction_input);
63
64int bcm47xx_gpio_direction_output(unsigned gpio, int value)
65{
66 bcm47xx_gpio_set_value(gpio, value);
67
68 if (ssb_bcm47xx.chipco.dev && (gpio < BCM47XX_CHIPCO_GPIO_LINES))
69 ssb_chipco_gpio_outen(&ssb_bcm47xx.chipco,
70 1 << gpio, 1 << gpio);
71 else if (ssb_bcm47xx.extif.dev && (gpio < BCM47XX_EXTIF_GPIO_LINES))
72 ssb_extif_gpio_outen(&ssb_bcm47xx.extif,
73 1 << gpio, 1 << gpio);
74 else
75 return -EINVAL;
76 return 0;
77}
78EXPORT_SYMBOL_GPL(bcm47xx_gpio_direction_output);
79
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 @@
1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
10 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
12 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
13 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
15 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
17 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#include <linux/types.h>
26#include <linux/interrupt.h>
27#include <linux/irq.h>
28#include <asm/irq_cpu.h>
29
30void plat_irq_dispatch(void)
31{
32 u32 cause;
33
34 cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
35
36 clear_c0_status(cause);
37
38 if (cause & CAUSEF_IP7)
39 do_IRQ(7);
40 if (cause & CAUSEF_IP2)
41 do_IRQ(2);
42 if (cause & CAUSEF_IP3)
43 do_IRQ(3);
44 if (cause & CAUSEF_IP4)
45 do_IRQ(4);
46 if (cause & CAUSEF_IP5)
47 do_IRQ(5);
48 if (cause & CAUSEF_IP6)
49 do_IRQ(6);
50}
51
52void __init arch_init_irq(void)
53{
54 mips_cpu_irq_init();
55}
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 @@
1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 *
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
11 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
13 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
14 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
15 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
16 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
17 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
18 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
19 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
20 *
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26#include <linux/init.h>
27#include <linux/types.h>
28#include <linux/kernel.h>
29#include <linux/spinlock.h>
30#include <asm/bootinfo.h>
31#include <asm/fw/cfe/cfe_api.h>
32#include <asm/fw/cfe/cfe_error.h>
33
34static int cfe_cons_handle;
35
36const char *get_system_type(void)
37{
38 return "Broadcom BCM47XX";
39}
40
41void prom_putchar(char c)
42{
43 while (cfe_write(cfe_cons_handle, &c, 1) == 0)
44 ;
45}
46
47static __init void prom_init_cfe(void)
48{
49 uint32_t cfe_ept;
50 uint32_t cfe_handle;
51 uint32_t cfe_eptseal;
52 int argc = fw_arg0;
53 char **envp = (char **) fw_arg2;
54 int *prom_vec = (int *) fw_arg3;
55
56 /*
57 * Check if a loader was used; if NOT, the 4 arguments are
58 * what CFE gives us (handle, 0, EPT and EPTSEAL)
59 */
60 if (argc < 0) {
61 cfe_handle = (uint32_t)argc;
62 cfe_ept = (uint32_t)envp;
63 cfe_eptseal = (uint32_t)prom_vec;
64 } else {
65 if ((int)prom_vec < 0) {
66 /*
67 * Old loader; all it gives us is the handle,
68 * so use the "known" entrypoint and assume
69 * the seal.
70 */
71 cfe_handle = (uint32_t)prom_vec;
72 cfe_ept = 0xBFC00500;
73 cfe_eptseal = CFE_EPTSEAL;
74 } else {
75 /*
76 * Newer loaders bundle the handle/ept/eptseal
77 * Note: prom_vec is in the loader's useg
78 * which is still alive in the TLB.
79 */
80 cfe_handle = prom_vec[0];
81 cfe_ept = prom_vec[2];
82 cfe_eptseal = prom_vec[3];
83 }
84 }
85
86 if (cfe_eptseal != CFE_EPTSEAL) {
87 /* too early for panic to do any good */
88 printk(KERN_ERR "CFE's entrypoint seal doesn't match.");
89 while (1) ;
90 }
91
92 cfe_init(cfe_handle, cfe_ept);
93}
94
95static __init void prom_init_console(void)
96{
97 /* Initialize CFE console */
98 cfe_cons_handle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE);
99}
100
101static __init void prom_init_cmdline(void)
102{
103 char buf[CL_SIZE];
104
105 /* Get the kernel command line from CFE */
106 if (cfe_getenv("LINUX_CMDLINE", buf, CL_SIZE) >= 0) {
107 buf[CL_SIZE-1] = 0;
108 strcpy(arcs_cmdline, buf);
109 }
110
111 /* Force a console handover by adding a console= argument if needed,
112 * as CFE is not available anymore later in the boot process. */
113 if ((strstr(arcs_cmdline, "console=")) == NULL) {
114 /* Try to read the default serial port used by CFE */
115 if ((cfe_getenv("BOOT_CONSOLE", buf, CL_SIZE) < 0)
116 || (strncmp("uart", buf, 4)))
117 /* Default to uart0 */
118 strcpy(buf, "uart0");
119
120 /* Compute the new command line */
121 snprintf(arcs_cmdline, CL_SIZE, "%s console=ttyS%c,115200",
122 arcs_cmdline, buf[4]);
123 }
124}
125
126static __init void prom_init_mem(void)
127{
128 unsigned long mem;
129
130 /* Figure out memory size by finding aliases.
131 *
132 * We should theoretically use the mapping from CFE using cfe_enummem().
133 * However as the BCM47XX is mostly used on low-memory systems, we
134 * want to reuse the memory used by CFE (around 4MB). That means cfe_*
135 * functions stop to work at some point during the boot, we should only
136 * call them at the beginning of the boot.
137 */
138 for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
139 if (*(unsigned long *)((unsigned long)(prom_init) + mem) ==
140 *(unsigned long *)(prom_init))
141 break;
142 }
143
144 add_memory_region(0, mem, BOOT_MEM_RAM);
145}
146
147void __init prom_init(void)
148{
149 prom_init_cfe();
150 prom_init_console();
151 prom_init_cmdline();
152 prom_init_mem();
153}
154
155void __init prom_free_prom_memory(void)
156{
157}
158
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 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
7 */
8
9#include <linux/module.h>
10#include <linux/init.h>
11#include <linux/serial.h>
12#include <linux/serial_8250.h>
13#include <linux/ssb/ssb.h>
14#include <bcm47xx.h>
15
16static struct plat_serial8250_port uart8250_data[5];
17
18static struct platform_device uart8250_device = {
19 .name = "serial8250",
20 .id = PLAT8250_DEV_PLATFORM,
21 .dev = {
22 .platform_data = uart8250_data,
23 },
24};
25
26static int __init uart8250_init(void)
27{
28 int i;
29 struct ssb_mipscore *mcore = &(ssb_bcm47xx.mipscore);
30
31 memset(&uart8250_data, 0, sizeof(uart8250_data));
32
33 for (i = 0; i < mcore->nr_serial_ports; i++) {
34 struct plat_serial8250_port *p = &(uart8250_data[i]);
35 struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);
36
37 p->mapbase = (unsigned int) ssb_port->regs;
38 p->membase = (void *) ssb_port->regs;
39 p->irq = ssb_port->irq + 2;
40 p->uartclk = ssb_port->baud_base;
41 p->regshift = ssb_port->reg_shift;
42 p->iotype = UPIO_MEM;
43 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
44 }
45 return platform_device_register(&uart8250_device);
46}
47
48module_init(uart8250_init);
49
50MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
51MODULE_LICENSE("GPL");
52MODULE_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 @@
1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
4 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
5 * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
13 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
15 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
16 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
18 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
19 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27
28#include <linux/types.h>
29#include <linux/ssb/ssb.h>
30#include <asm/bootinfo.h>
31#include <asm/reboot.h>
32#include <asm/time.h>
33#include <bcm47xx.h>
34#include <asm/fw/cfe/cfe_api.h>
35
36struct ssb_bus ssb_bcm47xx;
37EXPORT_SYMBOL(ssb_bcm47xx);
38
39static void bcm47xx_machine_restart(char *command)
40{
41 printk(KERN_ALERT "Please stand by while rebooting the system...\n");
42 local_irq_disable();
43 /* Set the watchdog timer to reset immediately */
44 ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 1);
45 while (1)
46 cpu_relax();
47}
48
49static void bcm47xx_machine_halt(void)
50{
51 /* Disable interrupts and watchdog and spin forever */
52 local_irq_disable();
53 ssb_chipco_watchdog_timer_set(&ssb_bcm47xx.chipco, 0);
54 while (1)
55 cpu_relax();
56}
57
58static void str2eaddr(char *str, char *dest)
59{
60 int i = 0;
61
62 if (str == NULL) {
63 memset(dest, 0, 6);
64 return;
65 }
66
67 for (;;) {
68 dest[i++] = (char) simple_strtoul(str, NULL, 16);
69 str += 2;
70 if (!*str++ || i == 6)
71 break;
72 }
73}
74
75static int bcm47xx_get_invariants(struct ssb_bus *bus,
76 struct ssb_init_invariants *iv)
77{
78 char buf[100];
79
80 /* Fill boardinfo structure */
81 memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
82
83 if (cfe_getenv("boardvendor", buf, sizeof(buf)) >= 0)
84 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
85 if (cfe_getenv("boardtype", buf, sizeof(buf)) >= 0)
86 iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
87 if (cfe_getenv("boardrev", buf, sizeof(buf)) >= 0)
88 iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0);
89
90 /* Fill sprom structure */
91 memset(&(iv->sprom), 0, sizeof(struct ssb_sprom));
92 iv->sprom.revision = 3;
93
94 if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
95 str2eaddr(buf, iv->sprom.r1.et0mac);
96 if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
97 str2eaddr(buf, iv->sprom.r1.et1mac);
98 if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0)
99 iv->sprom.r1.et0phyaddr = simple_strtoul(buf, NULL, 10);
100 if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0)
101 iv->sprom.r1.et1phyaddr = simple_strtoul(buf, NULL, 10);
102 if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0)
103 iv->sprom.r1.et0mdcport = simple_strtoul(buf, NULL, 10);
104 if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0)
105 iv->sprom.r1.et1mdcport = simple_strtoul(buf, NULL, 10);
106
107 return 0;
108}
109
110void __init plat_mem_setup(void)
111{
112 int err;
113
114 err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE,
115 bcm47xx_get_invariants);
116 if (err)
117 panic("Failed to initialize SSB bus (err %d)\n", err);
118
119 _machine_restart = bcm47xx_machine_restart;
120 _machine_halt = bcm47xx_machine_halt;
121 pm_power_off = bcm47xx_machine_halt;
122}
123
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 @@
1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
10 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
12 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
13 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
15 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
17 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25
26#include <linux/init.h>
27#include <linux/ssb/ssb.h>
28#include <asm/time.h>
29#include <bcm47xx.h>
30
31void __init plat_time_init(void)
32{
33 unsigned long hz;
34
35 /*
36 * Use deterministic values for initial counter interrupt
37 * so that calibrate delay avoids encountering a counter wrap.
38 */
39 write_c0_count(0);
40 write_c0_compare(0xffff);
41
42 hz = ssb_cpu_clock(&ssb_bcm47xx.mipscore) / 2;
43 if (!hz)
44 hz = 100000000;
45
46 /* Set MIPS counter frequency for fixed_rate_gettimeoffset() */
47 mips_hpt_frequency = hz;
48}
49
50void __init
51plat_timer_setup(struct irqaction *irq)
52{
53 /* Enable the timer interrupt */
54 setup_irq(7, irq);
55}
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 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
7 */
8
9#include <linux/platform_device.h>
10#include <linux/module.h>
11#include <linux/leds.h>
12#include <linux/ssb/ssb.h>
13#include <asm/mach-bcm47xx/bcm47xx.h>
14
15/* GPIO definitions for the WGT634U */
16#define WGT634U_GPIO_LED 3
17#define WGT634U_GPIO_RESET 2
18#define WGT634U_GPIO_TP1 7
19#define WGT634U_GPIO_TP2 6
20#define WGT634U_GPIO_TP3 5
21#define WGT634U_GPIO_TP4 4
22#define WGT634U_GPIO_TP5 1
23
24static struct gpio_led wgt634u_leds[] = {
25 {
26 .name = "power",
27 .gpio = WGT634U_GPIO_LED,
28 .active_low = 1,
29 .default_trigger = "heartbeat",
30 },
31};
32
33static struct gpio_led_platform_data wgt634u_led_data = {
34 .num_leds = ARRAY_SIZE(wgt634u_leds),
35 .leds = wgt634u_leds,
36};
37
38static struct platform_device wgt634u_gpio_leds = {
39 .name = "leds-gpio",
40 .id = -1,
41 .dev = {
42 .platform_data = &wgt634u_led_data,
43 }
44};
45
46static int __init wgt634u_init(void)
47{
48 /* There is no easy way to detect that we are running on a WGT634U
49 * machine. Use the MAC address as an heuristic. Netgear Inc. has
50 * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
51 */
52
53 u8 *et0mac = ssb_bcm47xx.sprom.r1.et0mac;
54
55 if (et0mac[0] == 0x00 &&
56 ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
57 (et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
58 return platform_device_register(&wgt634u_gpio_leds);
59 else
60 return -ENODEV;
61}
62
63module_init(wgt634u_init);
64
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 21:39:55 -0500