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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/au1000/pb1500
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/mips/au1000/pb1500')
-rw-r--r--arch/mips/au1000/pb1500/Makefile8
-rw-r--r--arch/mips/au1000/pb1500/board_setup.c138
-rw-r--r--arch/mips/au1000/pb1500/init.c69
-rw-r--r--arch/mips/au1000/pb1500/irqmap.c58
4 files changed, 273 insertions, 0 deletions
diff --git a/arch/mips/au1000/pb1500/Makefile b/arch/mips/au1000/pb1500/Makefile
new file mode 100644
index 000000000000..97a730813cd3
--- /dev/null
+++ b/arch/mips/au1000/pb1500/Makefile
@@ -0,0 +1,8 @@
1#
2# Copyright 2000,2001 MontaVista Software Inc.
3# Author: MontaVista Software, Inc.
4# ppopov@mvista.com or source@mvista.com
5#
6# Makefile for the Alchemy Semiconductor Pb1500 board.
7
8lib-y := init.o board_setup.o irqmap.o
diff --git a/arch/mips/au1000/pb1500/board_setup.c b/arch/mips/au1000/pb1500/board_setup.c
new file mode 100644
index 000000000000..30bb87282b1f
--- /dev/null
+++ b/arch/mips/au1000/pb1500/board_setup.c
@@ -0,0 +1,138 @@
1/*
2 * Copyright 2000 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc.
4 * ppopov@mvista.com or source@mvista.com
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26#include <linux/config.h>
27#include <linux/init.h>
28#include <linux/sched.h>
29#include <linux/ioport.h>
30#include <linux/mm.h>
31#include <linux/console.h>
32#include <linux/delay.h>
33
34#include <asm/cpu.h>
35#include <asm/bootinfo.h>
36#include <asm/irq.h>
37#include <asm/mipsregs.h>
38#include <asm/reboot.h>
39#include <asm/pgtable.h>
40#include <asm/mach-au1x00/au1000.h>
41#include <asm/mach-pb1x00/pb1500.h>
42
43void board_reset (void)
44{
45 /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
46 au_writel(0x00000000, 0xAE00001C);
47}
48
49void __init board_setup(void)
50{
51 u32 pin_func;
52 u32 sys_freqctrl, sys_clksrc;
53
54 sys_clksrc = sys_freqctrl = pin_func = 0;
55 // set AUX clock to 12MHz * 8 = 96 MHz
56 au_writel(8, SYS_AUXPLL);
57 au_writel(0, SYS_PINSTATERD);
58 udelay(100);
59
60#if defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE)
61
62 /* GPIO201 is input for PCMCIA card detect */
63 /* GPIO203 is input for PCMCIA interrupt request */
64 au_writel(au_readl(GPIO2_DIR) & (u32)(~((1<<1)|(1<<3))), GPIO2_DIR);
65
66 /* zero and disable FREQ2 */
67 sys_freqctrl = au_readl(SYS_FREQCTRL0);
68 sys_freqctrl &= ~0xFFF00000;
69 au_writel(sys_freqctrl, SYS_FREQCTRL0);
70
71 /* zero and disable USBH/USBD clocks */
72 sys_clksrc = au_readl(SYS_CLKSRC);
73 sys_clksrc &= ~0x00007FE0;
74 au_writel(sys_clksrc, SYS_CLKSRC);
75
76 sys_freqctrl = au_readl(SYS_FREQCTRL0);
77 sys_freqctrl &= ~0xFFF00000;
78
79 sys_clksrc = au_readl(SYS_CLKSRC);
80 sys_clksrc &= ~0x00007FE0;
81
82 // FREQ2 = aux/2 = 48 MHz
83 sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
84 au_writel(sys_freqctrl, SYS_FREQCTRL0);
85
86 /*
87 * Route 48MHz FREQ2 into USB Host and/or Device
88 */
89#ifdef CONFIG_USB_OHCI
90 sys_clksrc |= ((4<<12) | (0<<11) | (0<<10));
91#endif
92#ifdef CONFIG_AU1X00_USB_DEVICE
93 sys_clksrc |= ((4<<7) | (0<<6) | (0<<5));
94#endif
95 au_writel(sys_clksrc, SYS_CLKSRC);
96
97
98 pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8000);
99#ifndef CONFIG_AU1X00_USB_DEVICE
100 // 2nd USB port is USB host
101 pin_func |= 0x8000;
102#endif
103 au_writel(pin_func, SYS_PINFUNC);
104#endif // defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE)
105
106
107
108#ifdef CONFIG_PCI
109 // Setup PCI bus controller
110 au_writel(0, Au1500_PCI_CMEM);
111 au_writel(0x00003fff, Au1500_CFG_BASE);
112#if defined(__MIPSEB__)
113 au_writel(0xf | (2<<6) | (1<<4), Au1500_PCI_CFG);
114#else
115 au_writel(0xf, Au1500_PCI_CFG);
116#endif
117 au_writel(0xf0000000, Au1500_PCI_MWMASK_DEV);
118 au_writel(0, Au1500_PCI_MWBASE_REV_CCL);
119 au_writel(0x02a00356, Au1500_PCI_STATCMD);
120 au_writel(0x00003c04, Au1500_PCI_HDRTYPE);
121 au_writel(0x00000008, Au1500_PCI_MBAR);
122 au_sync();
123#endif
124
125 /* Enable sys bus clock divider when IDLE state or no bus activity. */
126 au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
127
128 /* Enable the RTC if not already enabled */
129 if (!(au_readl(0xac000028) & 0x20)) {
130 printk("enabling clock ...\n");
131 au_writel((au_readl(0xac000028) | 0x20), 0xac000028);
132 }
133 /* Put the clock in BCD mode */
134 if (readl(0xac00002C) & 0x4) { /* reg B */
135 au_writel(au_readl(0xac00002c) & ~0x4, 0xac00002c);
136 au_sync();
137 }
138}
diff --git a/arch/mips/au1000/pb1500/init.c b/arch/mips/au1000/pb1500/init.c
new file mode 100644
index 000000000000..733d2e469db2
--- /dev/null
+++ b/arch/mips/au1000/pb1500/init.c
@@ -0,0 +1,69 @@
1/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * PB1500 board setup
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ppopov@mvista.com or source@mvista.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
16 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
18 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
21 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30#include <linux/init.h>
31#include <linux/mm.h>
32#include <linux/sched.h>
33#include <linux/bootmem.h>
34#include <asm/addrspace.h>
35#include <asm/bootinfo.h>
36#include <linux/string.h>
37#include <linux/kernel.h>
38
39int prom_argc;
40char **prom_argv, **prom_envp;
41extern void __init prom_init_cmdline(void);
42extern char *prom_getenv(char *envname);
43
44const char *get_system_type(void)
45{
46 return "Alchemy Pb1500";
47}
48
49void __init prom_init(void)
50{
51 unsigned char *memsize_str;
52 unsigned long memsize;
53
54 prom_argc = (int) fw_arg0;
55 prom_argv = (char **) fw_arg1;
56 prom_envp = (char **) fw_arg2;
57
58 mips_machgroup = MACH_GROUP_ALCHEMY;
59 mips_machtype = MACH_PB1500;
60
61 prom_init_cmdline();
62 memsize_str = prom_getenv("memsize");
63 if (!memsize_str) {
64 memsize = 0x04000000;
65 } else {
66 memsize = simple_strtol(memsize_str, NULL, 0);
67 }
68 add_memory_region(0, memsize, BOOT_MEM_RAM);
69}
diff --git a/arch/mips/au1000/pb1500/irqmap.c b/arch/mips/au1000/pb1500/irqmap.c
new file mode 100644
index 000000000000..476e25001681
--- /dev/null
+++ b/arch/mips/au1000/pb1500/irqmap.c
@@ -0,0 +1,58 @@
1/*
2 * BRIEF MODULE DESCRIPTION
3 * Au1xxx irq map table
4 *
5 * Copyright 2003 Embedded Edge, LLC
6 * dan@embeddededge.com
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28#include <linux/errno.h>
29#include <linux/init.h>
30#include <linux/irq.h>
31#include <linux/kernel_stat.h>
32#include <linux/module.h>
33#include <linux/signal.h>
34#include <linux/sched.h>
35#include <linux/types.h>
36#include <linux/interrupt.h>
37#include <linux/ioport.h>
38#include <linux/timex.h>
39#include <linux/slab.h>
40#include <linux/random.h>
41#include <linux/delay.h>
42#include <linux/bitops.h>
43
44#include <asm/bootinfo.h>
45#include <asm/io.h>
46#include <asm/mipsregs.h>
47#include <asm/system.h>
48#include <asm/mach-au1x00/au1000.h>
49
50au1xxx_irq_map_t au1xxx_irq_map[] = {
51 { AU1500_GPIO_204, INTC_INT_HIGH_LEVEL, 0},
52 { AU1500_GPIO_201, INTC_INT_LOW_LEVEL, 0 },
53 { AU1500_GPIO_202, INTC_INT_LOW_LEVEL, 0 },
54 { AU1500_GPIO_203, INTC_INT_LOW_LEVEL, 0 },
55 { AU1500_GPIO_205, INTC_INT_LOW_LEVEL, 0 },
56};
57
58int au1xxx_nr_irqs = sizeof(au1xxx_irq_map)/sizeof(au1xxx_irq_map_t);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-20 11:09:18 -0500