diff options
| author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
|---|---|---|
| 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); | ||
