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-rw-r--r--arch/mips/alchemy/pb1000/Makefile8
-rw-r--r--arch/mips/alchemy/pb1000/board_setup.c165
-rw-r--r--arch/mips/alchemy/pb1000/init.c57
-rw-r--r--arch/mips/alchemy/pb1000/irqmap.c38
4 files changed, 268 insertions, 0 deletions
diff --git a/arch/mips/alchemy/pb1000/Makefile b/arch/mips/alchemy/pb1000/Makefile
new file mode 100644
index 000000000000..99bbec0ca41b
--- /dev/null
+++ b/arch/mips/alchemy/pb1000/Makefile
@@ -0,0 +1,8 @@
1#
2# Copyright 2000, 2008 MontaVista Software Inc.
3# Author: MontaVista Software, Inc. <source@mvista.com>
4#
5# Makefile for the Alchemy Semiconductor Pb1000 board.
6#
7
8lib-y := init.o board_setup.o irqmap.o
diff --git a/arch/mips/alchemy/pb1000/board_setup.c b/arch/mips/alchemy/pb1000/board_setup.c
new file mode 100644
index 000000000000..25df167a95b3
--- /dev/null
+++ b/arch/mips/alchemy/pb1000/board_setup.c
@@ -0,0 +1,165 @@
1/*
2 * Copyright 2000, 2008 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc. <source@mvista.com>
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/delay.h>
28
29#include <asm/mach-au1x00/au1000.h>
30#include <asm/mach-pb1x00/pb1000.h>
31
32void board_reset(void)
33{
34}
35
36void __init board_setup(void)
37{
38 u32 pin_func, static_cfg0;
39 u32 sys_freqctrl, sys_clksrc;
40 u32 prid = read_c0_prid();
41
42 /* Set AUX clock to 12 MHz * 8 = 96 MHz */
43 au_writel(8, SYS_AUXPLL);
44 au_writel(0, SYS_PINSTATERD);
45 udelay(100);
46
47#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
48 /* Zero and disable FREQ2 */
49 sys_freqctrl = au_readl(SYS_FREQCTRL0);
50 sys_freqctrl &= ~0xFFF00000;
51 au_writel(sys_freqctrl, SYS_FREQCTRL0);
52
53 /* Zero and disable USBH/USBD clocks */
54 sys_clksrc = au_readl(SYS_CLKSRC);
55 sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
56 SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
57 au_writel(sys_clksrc, SYS_CLKSRC);
58
59 sys_freqctrl = au_readl(SYS_FREQCTRL0);
60 sys_freqctrl &= ~0xFFF00000;
61
62 sys_clksrc = au_readl(SYS_CLKSRC);
63 sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
64 SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
65
66 switch (prid & 0x000000FF) {
67 case 0x00: /* DA */
68 case 0x01: /* HA */
69 case 0x02: /* HB */
70 /* CPU core freq to 48 MHz to slow it way down... */
71 au_writel(4, SYS_CPUPLL);
72
73 /*
74 * Setup 48 MHz FREQ2 from CPUPLL for USB Host
75 * FRDIV2 = 3 -> div by 8 of 384 MHz -> 48 MHz
76 */
77 sys_freqctrl |= (3 << SYS_FC_FRDIV2_BIT) | SYS_FC_FE2;
78 au_writel(sys_freqctrl, SYS_FREQCTRL0);
79
80 /* CPU core freq to 384 MHz */
81 au_writel(0x20, SYS_CPUPLL);
82
83 printk(KERN_INFO "Au1000: 48 MHz OHCI workaround enabled\n");
84 break;
85
86 default: /* HC and newer */
87 /* FREQ2 = aux / 2 = 48 MHz */
88 sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
89 SYS_FC_FE2 | SYS_FC_FS2;
90 au_writel(sys_freqctrl, SYS_FREQCTRL0);
91 break;
92 }
93
94 /*
95 * Route 48 MHz FREQ2 into USB Host and/or Device
96 */
97 sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT;
98 au_writel(sys_clksrc, SYS_CLKSRC);
99
100 /* Configure pins GPIO[14:9] as GPIO */
101 pin_func = au_readl(SYS_PINFUNC) & ~(SYS_PF_UR3 | SYS_PF_USB);
102
103 /* 2nd USB port is USB host */
104 pin_func |= SYS_PF_USB;
105
106 au_writel(pin_func, SYS_PINFUNC);
107 au_writel(0x2800, SYS_TRIOUTCLR);
108 au_writel(0x0030, SYS_OUTPUTCLR);
109#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
110
111 /* Make GPIO 15 an input (for interrupt line) */
112 pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_IRF;
113 /* We don't need I2S, so make it available for GPIO[31:29] */
114 pin_func |= SYS_PF_I2S;
115 au_writel(pin_func, SYS_PINFUNC);
116
117 au_writel(0x8000, SYS_TRIOUTCLR);
118
119 static_cfg0 = au_readl(MEM_STCFG0) & ~0xc00;
120 au_writel(static_cfg0, MEM_STCFG0);
121
122 /* configure RCE2* for LCD */
123 au_writel(0x00000004, MEM_STCFG2);
124
125 /* MEM_STTIME2 */
126 au_writel(0x09000000, MEM_STTIME2);
127
128 /* Set 32-bit base address decoding for RCE2* */
129 au_writel(0x10003ff0, MEM_STADDR2);
130
131 /*
132 * PCI CPLD setup
133 * Expand CE0 to cover PCI
134 */
135 au_writel(0x11803e40, MEM_STADDR1);
136
137 /* Burst visibility on */
138 au_writel(au_readl(MEM_STCFG0) | 0x1000, MEM_STCFG0);
139
140 au_writel(0x83, MEM_STCFG1); /* ewait enabled, flash timing */
141 au_writel(0x33030a10, MEM_STTIME1); /* slower timing for FPGA */
142
143 /* Setup the static bus controller */
144 au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
145 au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
146 au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
147
148 /*
149 * Enable Au1000 BCLK switching - note: sed1356 must not use
150 * its BCLK (Au1000 LCLK) for any timings
151 */
152 switch (prid & 0x000000FF) {
153 case 0x00: /* DA */
154 case 0x01: /* HA */
155 case 0x02: /* HB */
156 break;
157 default: /* HC and newer */
158 /*
159 * Enable sys bus clock divider when IDLE state or no bus
160 * activity.
161 */
162 au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
163 break;
164 }
165}
diff --git a/arch/mips/alchemy/pb1000/init.c b/arch/mips/alchemy/pb1000/init.c
new file mode 100644
index 000000000000..8a9c7d57208d
--- /dev/null
+++ b/arch/mips/alchemy/pb1000/init.c
@@ -0,0 +1,57 @@
1/*
2 * BRIEF MODULE DESCRIPTION
3 * Pb1000 board setup
4 *
5 * Copyright 2001, 2008 MontaVista Software Inc.
6 * Author: MontaVista Software, Inc. <source@mvista.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
29#include <linux/init.h>
30#include <linux/kernel.h>
31
32#include <asm/bootinfo.h>
33
34#include <prom.h>
35
36const char *get_system_type(void)
37{
38 return "Alchemy Pb1000";
39}
40
41void __init prom_init(void)
42{
43 unsigned char *memsize_str;
44 unsigned long memsize;
45
46 prom_argc = (int)fw_arg0;
47 prom_argv = (char **)fw_arg1;
48 prom_envp = (char **)fw_arg2;
49
50 prom_init_cmdline();
51 memsize_str = prom_getenv("memsize");
52 if (!memsize_str)
53 memsize = 0x04000000;
54 else
55 strict_strtol(memsize_str, 0, &memsize);
56 add_memory_region(0, memsize, BOOT_MEM_RAM);
57}
diff --git a/arch/mips/alchemy/pb1000/irqmap.c b/arch/mips/alchemy/pb1000/irqmap.c
new file mode 100644
index 000000000000..b3d56b0af321
--- /dev/null
+++ b/arch/mips/alchemy/pb1000/irqmap.c
@@ -0,0 +1,38 @@
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
29#include <linux/init.h>
30#include <linux/interrupt.h>
31
32#include <asm/mach-au1x00/au1000.h>
33
34struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
35 { AU1000_GPIO_15, INTC_INT_LOW_LEVEL, 0 },
36};
37
38int __initdata au1xxx_nr_irqs = ARRAY_SIZE(au1xxx_irq_map);
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-30 04:42:28 -0400