Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 2 | * Copyright 2002, 2008 MontaVista Software Inc. |
| 3 | * Author: MontaVista Software, Inc. <source@mvista.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Sergei Shtylyov | ce28f94 | 2008-04-23 22:43:55 +0400 | [diff] [blame] | 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <linux/delay.h> |
Manuel Lauss | 785e326 | 2008-12-21 09:26:17 +0100 | [diff] [blame^] | 28 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <asm/mach-au1x00/au1000.h> |
| 31 | #include <asm/mach-pb1x00/pb1100.h> |
| 32 | |
Manuel Lauss | 7179380 | 2008-12-21 09:26:16 +0100 | [diff] [blame] | 33 | #include <prom.h> |
| 34 | |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 35 | |
| 36 | struct au1xxx_irqmap __initdata au1xxx_irq_map[] = { |
Manuel Lauss | 785e326 | 2008-12-21 09:26:17 +0100 | [diff] [blame^] | 37 | { AU1000_GPIO_9, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card Fully_Inserted# */ |
| 38 | { AU1000_GPIO_10, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card STSCHG# */ |
| 39 | { AU1000_GPIO_11, IRQF_TRIGGER_LOW, 0 }, /* PCMCIA Card IRQ# */ |
| 40 | { AU1000_GPIO_13, IRQF_TRIGGER_LOW, 0 }, /* DC_IRQ# */ |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 41 | }; |
| 42 | |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 43 | |
| 44 | const char *get_system_type(void) |
| 45 | { |
| 46 | return "Alchemy Pb1100"; |
| 47 | } |
| 48 | |
Ralf Baechle | 49a89ef | 2007-10-11 23:46:15 +0100 | [diff] [blame] | 49 | void board_reset(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | { |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 51 | /* Hit BCSR.RST_VDDI[SOFT_RESET] */ |
| 52 | au_writel(0x00000000, PB1100_RST_VDDI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | } |
| 54 | |
Manuel Lauss | 785e326 | 2008-12-21 09:26:17 +0100 | [diff] [blame^] | 55 | void __init board_init_irq(void) |
| 56 | { |
| 57 | au1xxx_setup_irqmap(au1xxx_irq_map, ARRAY_SIZE(au1xxx_irq_map)); |
| 58 | } |
| 59 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | void __init board_setup(void) |
| 61 | { |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 62 | volatile void __iomem *base = (volatile void __iomem *)0xac000000UL; |
Manuel Lauss | 7179380 | 2008-12-21 09:26:16 +0100 | [diff] [blame] | 63 | char *argptr; |
| 64 | |
| 65 | argptr = prom_getcmdline(); |
| 66 | #ifdef CONFIG_SERIAL_8250_CONSOLE |
| 67 | argptr = strstr(argptr, "console="); |
| 68 | if (argptr == NULL) { |
| 69 | argptr = prom_getcmdline(); |
| 70 | strcat(argptr, " console=ttyS0,115200"); |
| 71 | } |
| 72 | #endif |
| 73 | |
| 74 | #ifdef CONFIG_FB_AU1100 |
| 75 | argptr = strstr(argptr, "video="); |
| 76 | if (argptr == NULL) { |
| 77 | argptr = prom_getcmdline(); |
| 78 | /* default panel */ |
| 79 | /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/ |
| 80 | } |
| 81 | #endif |
| 82 | |
| 83 | #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000) |
| 84 | /* au1000 does not support vra, au1500 and au1100 do */ |
| 85 | strcat(argptr, " au1000_audio=vra"); |
| 86 | argptr = prom_getcmdline(); |
| 87 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 89 | /* Set AUX clock to 12 MHz * 8 = 96 MHz */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | au_writel(8, SYS_AUXPLL); |
| 91 | au_writel(0, SYS_PININPUTEN); |
| 92 | udelay(100); |
| 93 | |
Florian Fainelli | f708631 | 2007-09-25 17:07:24 +0200 | [diff] [blame] | 94 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 95 | { |
| 96 | u32 pin_func, sys_freqctrl, sys_clksrc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 98 | /* Configure pins GPIO[14:9] as GPIO */ |
| 99 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 101 | /* Zero and disable FREQ2 */ |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 102 | sys_freqctrl = au_readl(SYS_FREQCTRL0); |
| 103 | sys_freqctrl &= ~0xFFF00000; |
| 104 | au_writel(sys_freqctrl, SYS_FREQCTRL0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 106 | /* Zero and disable USBH/USBD/IrDA clock */ |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 107 | sys_clksrc = au_readl(SYS_CLKSRC); |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 108 | sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK); |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 109 | au_writel(sys_clksrc, SYS_CLKSRC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 111 | sys_freqctrl = au_readl(SYS_FREQCTRL0); |
| 112 | sys_freqctrl &= ~0xFFF00000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 114 | sys_clksrc = au_readl(SYS_CLKSRC); |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 115 | sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 117 | /* FREQ2 = aux / 2 = 48 MHz */ |
| 118 | sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) | |
| 119 | SYS_FC_FE2 | SYS_FC_FS2; |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 120 | au_writel(sys_freqctrl, SYS_FREQCTRL0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 122 | /* |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 123 | * Route 48 MHz FREQ2 into USBH/USBD/IrDA |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 124 | */ |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 125 | sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT; |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 126 | au_writel(sys_clksrc, SYS_CLKSRC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 128 | /* Setup the static bus controller */ |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 129 | au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */ |
| 130 | au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */ |
| 131 | au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */ |
| 132 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 133 | /* |
| 134 | * Get USB Functionality pin state (device vs host drive pins). |
| 135 | */ |
| 136 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB; |
| 137 | /* 2nd USB port is USB host. */ |
| 138 | pin_func |= SYS_PF_USB; |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 139 | au_writel(pin_func, SYS_PINFUNC); |
| 140 | } |
Florian Fainelli | f708631 | 2007-09-25 17:07:24 +0200 | [diff] [blame] | 141 | #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | |
| 143 | /* Enable sys bus clock divider when IDLE state or no bus activity. */ |
| 144 | au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL); |
| 145 | |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 146 | /* Enable the RTC if not already enabled. */ |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 147 | if (!(readb(base + 0x28) & 0x20)) { |
| 148 | writeb(readb(base + 0x28) | 0x20, base + 0x28); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | au_sync(); |
| 150 | } |
Sergei Shtylyov | be1c3c1 | 2008-04-30 23:26:28 +0400 | [diff] [blame] | 151 | /* Put the clock in BCD mode. */ |
Ralf Baechle | 3f21cde | 2006-11-07 10:19:05 +0000 | [diff] [blame] | 152 | if (readb(base + 0x2C) & 0x4) { /* reg B */ |
| 153 | writeb(readb(base + 0x2c) & ~0x4, base + 0x2c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | au_sync(); |
| 155 | } |
| 156 | } |