PCI SR-IOV: correct broken resource alignment calculations
[linux-2.6/mini2440.git] / arch / mips / mti-malta / malta-setup.c
blobdc78b8983eeb2688b0fbae098561b53a9885c028
1 /*
2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
4 * Copyright (C) 2008 Dmitri Vorobiev
6 * This program is free software; you can distribute it and/or modify it
7 * under the terms of the GNU General Public License (Version 2) as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
19 #include <linux/cpu.h>
20 #include <linux/init.h>
21 #include <linux/sched.h>
22 #include <linux/ioport.h>
23 #include <linux/irq.h>
24 #include <linux/pci.h>
25 #include <linux/screen_info.h>
26 #include <linux/time.h>
28 #include <asm/bootinfo.h>
29 #include <asm/mips-boards/generic.h>
30 #include <asm/mips-boards/prom.h>
31 #include <asm/mips-boards/malta.h>
32 #include <asm/mips-boards/maltaint.h>
33 #include <asm/dma.h>
34 #include <asm/traps.h>
35 #ifdef CONFIG_VT
36 #include <linux/console.h>
37 #endif
39 extern void malta_be_init(void);
40 extern int malta_be_handler(struct pt_regs *regs, int is_fixup);
42 static struct resource standard_io_resources[] = {
44 .name = "dma1",
45 .start = 0x00,
46 .end = 0x1f,
47 .flags = IORESOURCE_BUSY
50 .name = "timer",
51 .start = 0x40,
52 .end = 0x5f,
53 .flags = IORESOURCE_BUSY
56 .name = "keyboard",
57 .start = 0x60,
58 .end = 0x6f,
59 .flags = IORESOURCE_BUSY
62 .name = "dma page reg",
63 .start = 0x80,
64 .end = 0x8f,
65 .flags = IORESOURCE_BUSY
68 .name = "dma2",
69 .start = 0xc0,
70 .end = 0xdf,
71 .flags = IORESOURCE_BUSY
75 const char *get_system_type(void)
77 return "MIPS Malta";
80 #if defined(CONFIG_MIPS_MT_SMTC)
81 const char display_string[] = " SMTC LINUX ON MALTA ";
82 #else
83 const char display_string[] = " LINUX ON MALTA ";
84 #endif /* CONFIG_MIPS_MT_SMTC */
86 #ifdef CONFIG_BLK_DEV_FD
87 static void __init fd_activate(void)
90 * Activate Floppy Controller in the SMSC FDC37M817 Super I/O
91 * Controller.
92 * Done by YAMON 2.00 onwards
94 /* Entering config state. */
95 SMSC_WRITE(SMSC_CONFIG_ENTER, SMSC_CONFIG_REG);
97 /* Activate floppy controller. */
98 SMSC_WRITE(SMSC_CONFIG_DEVNUM, SMSC_CONFIG_REG);
99 SMSC_WRITE(SMSC_CONFIG_DEVNUM_FLOPPY, SMSC_DATA_REG);
100 SMSC_WRITE(SMSC_CONFIG_ACTIVATE, SMSC_CONFIG_REG);
101 SMSC_WRITE(SMSC_CONFIG_ACTIVATE_ENABLE, SMSC_DATA_REG);
103 /* Exit config state. */
104 SMSC_WRITE(SMSC_CONFIG_EXIT, SMSC_CONFIG_REG);
106 #endif
108 #ifdef CONFIG_BLK_DEV_IDE
109 static void __init pci_clock_check(void)
111 unsigned int __iomem *jmpr_p =
112 (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
113 int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
114 static const int pciclocks[] __initdata = {
115 33, 20, 25, 30, 12, 16, 37, 10
117 int pciclock = pciclocks[jmpr];
118 char *argptr = prom_getcmdline();
120 if (pciclock != 33 && !strstr(argptr, "idebus=")) {
121 printk(KERN_WARNING "WARNING: PCI clock is %dMHz, "
122 "setting idebus\n", pciclock);
123 argptr += strlen(argptr);
124 sprintf(argptr, " idebus=%d", pciclock);
125 if (pciclock < 20 || pciclock > 66)
126 printk(KERN_WARNING "WARNING: IDE timing "
127 "calculations will be incorrect\n");
130 #endif
132 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
133 static void __init screen_info_setup(void)
135 screen_info = (struct screen_info) {
136 .orig_x = 0,
137 .orig_y = 25,
138 .ext_mem_k = 0,
139 .orig_video_page = 0,
140 .orig_video_mode = 0,
141 .orig_video_cols = 80,
142 .unused2 = 0,
143 .orig_video_ega_bx = 0,
144 .unused3 = 0,
145 .orig_video_lines = 25,
146 .orig_video_isVGA = VIDEO_TYPE_VGAC,
147 .orig_video_points = 16
150 #endif
152 static void __init bonito_quirks_setup(void)
154 char *argptr;
156 argptr = prom_getcmdline();
157 if (strstr(argptr, "debug")) {
158 BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
159 printk(KERN_INFO "Enabled Bonito debug mode\n");
160 } else
161 BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
163 #ifdef CONFIG_DMA_COHERENT
164 if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
165 BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
166 printk(KERN_INFO "Enabled Bonito CPU coherency\n");
168 argptr = prom_getcmdline();
169 if (strstr(argptr, "iobcuncached")) {
170 BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
171 BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
172 ~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
173 BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
174 printk(KERN_INFO "Disabled Bonito IOBC coherency\n");
175 } else {
176 BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
177 BONITO_PCIMEMBASECFG |=
178 (BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
179 BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
180 printk(KERN_INFO "Enabled Bonito IOBC coherency\n");
182 } else
183 panic("Hardware DMA cache coherency not supported");
184 #endif
187 void __init plat_mem_setup(void)
189 unsigned int i;
191 mips_pcibios_init();
193 /* Request I/O space for devices used on the Malta board. */
194 for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
195 request_resource(&ioport_resource, standard_io_resources+i);
198 * Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
200 enable_dma(4);
202 #ifdef CONFIG_DMA_COHERENT
203 if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
204 panic("Hardware DMA cache coherency not supported");
205 #endif
207 if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO)
208 bonito_quirks_setup();
210 #ifdef CONFIG_BLK_DEV_IDE
211 pci_clock_check();
212 #endif
214 #ifdef CONFIG_BLK_DEV_FD
215 fd_activate();
216 #endif
218 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
219 screen_info_setup();
220 #endif
221 mips_reboot_setup();
223 board_be_init = malta_be_init;
224 board_be_handler = malta_be_handler;