Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 2 | * Copyright 2000, 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/pb1500.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 | char irq_tab_alchemy[][5] __initdata = { |
| 37 | [12] = { -1, INTA, INTX, INTX, INTX }, /* IDSEL 12 - HPT370 */ |
| 38 | [13] = { -1, INTA, INTB, INTC, INTD }, /* IDSEL 13 - PCI slot */ |
| 39 | }; |
| 40 | |
| 41 | struct au1xxx_irqmap __initdata au1xxx_irq_map[] = { |
Manuel Lauss | 785e326 | 2008-12-21 09:26:17 +0100 | [diff] [blame^] | 42 | { AU1500_GPIO_204, IRQF_TRIGGER_HIGH, 0 }, |
| 43 | { AU1500_GPIO_201, IRQF_TRIGGER_LOW, 0 }, |
| 44 | { AU1500_GPIO_202, IRQF_TRIGGER_LOW, 0 }, |
| 45 | { AU1500_GPIO_203, IRQF_TRIGGER_LOW, 0 }, |
| 46 | { AU1500_GPIO_205, IRQF_TRIGGER_LOW, 0 }, |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 47 | }; |
| 48 | |
Manuel Lauss | 23ba25d | 2008-12-21 09:26:15 +0100 | [diff] [blame] | 49 | |
| 50 | const char *get_system_type(void) |
| 51 | { |
| 52 | return "Alchemy Pb1500"; |
| 53 | } |
| 54 | |
Ralf Baechle | 49a89ef | 2007-10-11 23:46:15 +0100 | [diff] [blame] | 55 | void board_reset(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | { |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 57 | /* Hit BCSR.RST_VDDI[SOFT_RESET] */ |
| 58 | au_writel(0x00000000, PB1500_RST_VDDI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | } |
| 60 | |
Manuel Lauss | 785e326 | 2008-12-21 09:26:17 +0100 | [diff] [blame^] | 61 | void __init board_init_irq(void) |
| 62 | { |
| 63 | au1xxx_setup_irqmap(au1xxx_irq_map, ARRAY_SIZE(au1xxx_irq_map)); |
| 64 | } |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | void __init board_setup(void) |
| 67 | { |
| 68 | u32 pin_func; |
| 69 | u32 sys_freqctrl, sys_clksrc; |
Manuel Lauss | 7179380 | 2008-12-21 09:26:16 +0100 | [diff] [blame] | 70 | char *argptr; |
| 71 | |
| 72 | argptr = prom_getcmdline(); |
| 73 | #ifdef CONFIG_SERIAL_8250_CONSOLE |
| 74 | argptr = strstr(argptr, "console="); |
| 75 | if (argptr == NULL) { |
| 76 | argptr = prom_getcmdline(); |
| 77 | strcat(argptr, " console=ttyS0,115200"); |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #if defined(CONFIG_SOUND_AU1X00) && !defined(CONFIG_SOC_AU1000) |
| 82 | /* au1000 does not support vra, au1500 and au1100 do */ |
| 83 | strcat(argptr, " au1000_audio=vra"); |
| 84 | argptr = prom_getcmdline(); |
| 85 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | sys_clksrc = sys_freqctrl = pin_func = 0; |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 88 | /* Set AUX clock to 12 MHz * 8 = 96 MHz */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | au_writel(8, SYS_AUXPLL); |
| 90 | au_writel(0, SYS_PINSTATERD); |
| 91 | udelay(100); |
| 92 | |
Florian Fainelli | f708631 | 2007-09-25 17:07:24 +0200 | [diff] [blame] | 93 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
| 95 | /* GPIO201 is input for PCMCIA card detect */ |
| 96 | /* GPIO203 is input for PCMCIA interrupt request */ |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 97 | au_writel(au_readl(GPIO2_DIR) & ~((1 << 1) | (1 << 3)), GPIO2_DIR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 99 | /* Zero and disable FREQ2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | sys_freqctrl = au_readl(SYS_FREQCTRL0); |
| 101 | sys_freqctrl &= ~0xFFF00000; |
| 102 | au_writel(sys_freqctrl, SYS_FREQCTRL0); |
| 103 | |
| 104 | /* zero and disable USBH/USBD clocks */ |
| 105 | sys_clksrc = au_readl(SYS_CLKSRC); |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 106 | sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK | |
| 107 | SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | au_writel(sys_clksrc, SYS_CLKSRC); |
| 109 | |
| 110 | sys_freqctrl = au_readl(SYS_FREQCTRL0); |
| 111 | sys_freqctrl &= ~0xFFF00000; |
| 112 | |
| 113 | sys_clksrc = au_readl(SYS_CLKSRC); |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 114 | sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK | |
| 115 | SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 117 | /* FREQ2 = aux/2 = 48 MHz */ |
| 118 | sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) | SYS_FC_FE2 | SYS_FC_FS2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | au_writel(sys_freqctrl, SYS_FREQCTRL0); |
| 120 | |
| 121 | /* |
| 122 | * Route 48MHz FREQ2 into USB Host and/or Device |
| 123 | */ |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 124 | sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | au_writel(sys_clksrc, SYS_CLKSRC); |
| 126 | |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 127 | pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB; |
| 128 | /* 2nd USB port is USB host */ |
| 129 | pin_func |= SYS_PF_USB; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | au_writel(pin_func, SYS_PINFUNC); |
Florian Fainelli | f708631 | 2007-09-25 17:07:24 +0200 | [diff] [blame] | 131 | #endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | #ifdef CONFIG_PCI |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 134 | /* Setup PCI bus controller */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | au_writel(0, Au1500_PCI_CMEM); |
| 136 | au_writel(0x00003fff, Au1500_CFG_BASE); |
| 137 | #if defined(__MIPSEB__) |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 138 | au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | #else |
| 140 | au_writel(0xf, Au1500_PCI_CFG); |
| 141 | #endif |
| 142 | au_writel(0xf0000000, Au1500_PCI_MWMASK_DEV); |
| 143 | au_writel(0, Au1500_PCI_MWBASE_REV_CCL); |
| 144 | au_writel(0x02a00356, Au1500_PCI_STATCMD); |
| 145 | au_writel(0x00003c04, Au1500_PCI_HDRTYPE); |
| 146 | au_writel(0x00000008, Au1500_PCI_MBAR); |
| 147 | au_sync(); |
| 148 | #endif |
| 149 | |
| 150 | /* Enable sys bus clock divider when IDLE state or no bus activity. */ |
| 151 | au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL); |
| 152 | |
| 153 | /* Enable the RTC if not already enabled */ |
| 154 | if (!(au_readl(0xac000028) & 0x20)) { |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 155 | printk(KERN_INFO "enabling clock ...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | au_writel((au_readl(0xac000028) | 0x20), 0xac000028); |
| 157 | } |
| 158 | /* Put the clock in BCD mode */ |
Sergei Shtylyov | 2091a17 | 2008-04-30 23:27:20 +0400 | [diff] [blame] | 159 | if (au_readl(0xac00002c) & 0x4) { /* reg B */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | au_writel(au_readl(0xac00002c) & ~0x4, 0xac00002c); |
| 161 | au_sync(); |
| 162 | } |
| 163 | } |