diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/mips/alchemy/devboards/pb1100 | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/mips/alchemy/devboards/pb1100')
-rw-r--r-- | arch/mips/alchemy/devboards/pb1100/Makefile | 8 | ||||
-rw-r--r-- | arch/mips/alchemy/devboards/pb1100/board_setup.c | 127 | ||||
-rw-r--r-- | arch/mips/alchemy/devboards/pb1100/platform.c | 50 |
3 files changed, 185 insertions, 0 deletions
diff --git a/arch/mips/alchemy/devboards/pb1100/Makefile b/arch/mips/alchemy/devboards/pb1100/Makefile new file mode 100644 index 00000000000..7e3756c83fe --- /dev/null +++ b/arch/mips/alchemy/devboards/pb1100/Makefile | |||
@@ -0,0 +1,8 @@ | |||
1 | # | ||
2 | # Copyright 2000, 2001, 2008 MontaVista Software Inc. | ||
3 | # Author: MontaVista Software, Inc. <source@mvista.com> | ||
4 | # | ||
5 | # Makefile for the Alchemy Semiconductor Pb1100 board. | ||
6 | # | ||
7 | |||
8 | obj-y := board_setup.o platform.o | ||
diff --git a/arch/mips/alchemy/devboards/pb1100/board_setup.c b/arch/mips/alchemy/devboards/pb1100/board_setup.c new file mode 100644 index 00000000000..d108fd573aa --- /dev/null +++ b/arch/mips/alchemy/devboards/pb1100/board_setup.c | |||
@@ -0,0 +1,127 @@ | |||
1 | /* | ||
2 | * Copyright 2002, 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/gpio.h> | ||
27 | #include <linux/init.h> | ||
28 | #include <linux/delay.h> | ||
29 | #include <linux/interrupt.h> | ||
30 | |||
31 | #include <asm/mach-au1x00/au1000.h> | ||
32 | #include <asm/mach-db1x00/bcsr.h> | ||
33 | |||
34 | #include <prom.h> | ||
35 | |||
36 | |||
37 | const char *get_system_type(void) | ||
38 | { | ||
39 | return "Alchemy Pb1100"; | ||
40 | } | ||
41 | |||
42 | void __init board_setup(void) | ||
43 | { | ||
44 | volatile void __iomem *base = (volatile void __iomem *)0xac000000UL; | ||
45 | |||
46 | bcsr_init(DB1000_BCSR_PHYS_ADDR, | ||
47 | DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS); | ||
48 | |||
49 | /* Set AUX clock to 12 MHz * 8 = 96 MHz */ | ||
50 | au_writel(8, SYS_AUXPLL); | ||
51 | alchemy_gpio1_input_enable(); | ||
52 | udelay(100); | ||
53 | |||
54 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) | ||
55 | { | ||
56 | u32 pin_func, sys_freqctrl, sys_clksrc; | ||
57 | |||
58 | /* Configure pins GPIO[14:9] as GPIO */ | ||
59 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3; | ||
60 | |||
61 | /* Zero and disable FREQ2 */ | ||
62 | sys_freqctrl = au_readl(SYS_FREQCTRL0); | ||
63 | sys_freqctrl &= ~0xFFF00000; | ||
64 | au_writel(sys_freqctrl, SYS_FREQCTRL0); | ||
65 | |||
66 | /* Zero and disable USBH/USBD/IrDA clock */ | ||
67 | sys_clksrc = au_readl(SYS_CLKSRC); | ||
68 | sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK); | ||
69 | au_writel(sys_clksrc, SYS_CLKSRC); | ||
70 | |||
71 | sys_freqctrl = au_readl(SYS_FREQCTRL0); | ||
72 | sys_freqctrl &= ~0xFFF00000; | ||
73 | |||
74 | sys_clksrc = au_readl(SYS_CLKSRC); | ||
75 | sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK); | ||
76 | |||
77 | /* FREQ2 = aux / 2 = 48 MHz */ | ||
78 | sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) | | ||
79 | SYS_FC_FE2 | SYS_FC_FS2; | ||
80 | au_writel(sys_freqctrl, SYS_FREQCTRL0); | ||
81 | |||
82 | /* | ||
83 | * Route 48 MHz FREQ2 into USBH/USBD/IrDA | ||
84 | */ | ||
85 | sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT; | ||
86 | au_writel(sys_clksrc, SYS_CLKSRC); | ||
87 | |||
88 | /* Setup the static bus controller */ | ||
89 | au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */ | ||
90 | au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */ | ||
91 | au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */ | ||
92 | |||
93 | /* | ||
94 | * Get USB Functionality pin state (device vs host drive pins). | ||
95 | */ | ||
96 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB; | ||
97 | /* 2nd USB port is USB host. */ | ||
98 | pin_func |= SYS_PF_USB; | ||
99 | au_writel(pin_func, SYS_PINFUNC); | ||
100 | } | ||
101 | #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */ | ||
102 | |||
103 | /* Enable sys bus clock divider when IDLE state or no bus activity. */ | ||
104 | au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL); | ||
105 | |||
106 | /* Enable the RTC if not already enabled. */ | ||
107 | if (!(readb(base + 0x28) & 0x20)) { | ||
108 | writeb(readb(base + 0x28) | 0x20, base + 0x28); | ||
109 | au_sync(); | ||
110 | } | ||
111 | /* Put the clock in BCD mode. */ | ||
112 | if (readb(base + 0x2C) & 0x4) { /* reg B */ | ||
113 | writeb(readb(base + 0x2c) & ~0x4, base + 0x2c); | ||
114 | au_sync(); | ||
115 | } | ||
116 | } | ||
117 | |||
118 | static int __init pb1100_init_irq(void) | ||
119 | { | ||
120 | irq_set_irq_type(AU1100_GPIO9_INT, IRQF_TRIGGER_LOW); /* PCCD# */ | ||
121 | irq_set_irq_type(AU1100_GPIO10_INT, IRQF_TRIGGER_LOW); /* PCSTSCHG# */ | ||
122 | irq_set_irq_type(AU1100_GPIO11_INT, IRQF_TRIGGER_LOW); /* PCCard# */ | ||
123 | irq_set_irq_type(AU1100_GPIO13_INT, IRQF_TRIGGER_LOW); /* DC_IRQ# */ | ||
124 | |||
125 | return 0; | ||
126 | } | ||
127 | arch_initcall(pb1100_init_irq); | ||
diff --git a/arch/mips/alchemy/devboards/pb1100/platform.c b/arch/mips/alchemy/devboards/pb1100/platform.c new file mode 100644 index 00000000000..2c8dc29759f --- /dev/null +++ b/arch/mips/alchemy/devboards/pb1100/platform.c | |||
@@ -0,0 +1,50 @@ | |||
1 | /* | ||
2 | * Pb1100 board platform device registration | ||
3 | * | ||
4 | * Copyright (C) 2009 Manuel Lauss | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | |||
21 | #include <linux/init.h> | ||
22 | |||
23 | #include <asm/mach-au1x00/au1000.h> | ||
24 | #include <asm/mach-db1x00/bcsr.h> | ||
25 | |||
26 | #include "../platform.h" | ||
27 | |||
28 | static int __init pb1100_dev_init(void) | ||
29 | { | ||
30 | int swapped; | ||
31 | |||
32 | /* PCMCIA. single socket, identical to Pb1500 */ | ||
33 | db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR, | ||
34 | PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, | ||
35 | PCMCIA_MEM_PHYS_ADDR, | ||
36 | PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, | ||
37 | PCMCIA_IO_PHYS_ADDR, | ||
38 | PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, | ||
39 | AU1100_GPIO11_INT, /* card */ | ||
40 | AU1100_GPIO9_INT, /* insert */ | ||
41 | /*AU1100_GPIO10_INT*/0, /* stschg */ | ||
42 | 0, /* eject */ | ||
43 | 0); /* id */ | ||
44 | |||
45 | swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT; | ||
46 | db1x_register_norflash(64 * 1024 * 1024, 4, swapped); | ||
47 | |||
48 | return 0; | ||
49 | } | ||
50 | device_initcall(pb1100_dev_init); | ||