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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 18:01:29 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 18:01:29 -0400
commit7e2225d860772aaa07e1cebca6a5aa6f93f9aa91 (patch)
tree8a4c3076c2043d011fcf2357835f4f16be7606a7 /arch/mips/mti-malta/malta-setup.c
parent3a628b0fd42f7eaf9d052447784d48ceae9ffb8e (diff)
parentb27418aa551a153e8bf1bd16cf93e5786f9590a9 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (54 commits) [MIPS] Remove mips_machtype for LASAT machines [MIPS] Remove mips_machtype from EMMA2RH machines [MIPS] Remove mips_machtype from ARC based machines [MIPS] MTX-1 flash partition setup move to platform devices registration [MIPS] TXx9: cleanup and fix some sparse warnings [MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx [MIPS] remove machtype for group Toshiba [MIPS] separate rbtx4927_time_init() and rbtx4937_time_init() [MIPS] separate rbtx4927_arch_init() and rbtx4937_arch_init() [MIPS] txx9_cpu_clock setup move to rbtx4927_time_init() [MIPS] txx9_board_vec set directly without mips_machtype [MIPS] IP22: Add platform device for Indy volume buttons [MIPS] cmbvr4133: Remove support [MIPS] remove wrppmc_machine_power_off() [MIPS] replace inline assembler to cpu_wait() [MIPS] IP22/28: Add platform devices for HAL2 [MIPS] TXx9: Update and merge defconfigs [MIPS] TXx9: Make single kernel can support multiple boards [MIPS] TXx9: Update defconfigs [MIPS] TXx9: Reorganize PCI code ...
Diffstat (limited to 'arch/mips/mti-malta/malta-setup.c')
-rw-r--r--arch/mips/mti-malta/malta-setup.c229
1 files changed, 229 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
new file mode 100644
index 000000000000..e7cad54936ca
--- /dev/null
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -0,0 +1,229 @@
1/*
2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
4 * Copyright (C) 2008 Dmitri Vorobiev
5 *
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.
9 *
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.
14 *
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.
18 */
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>
27
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
38
39extern void malta_be_init(void);
40extern int malta_be_handler(struct pt_regs *regs, int is_fixup);
41
42static struct resource standard_io_resources[] = {
43 {
44 .name = "dma1",
45 .start = 0x00,
46 .end = 0x1f,
47 .flags = IORESOURCE_BUSY
48 },
49 {
50 .name = "timer",
51 .start = 0x40,
52 .end = 0x5f,
53 .flags = IORESOURCE_BUSY
54 },
55 {
56 .name = "keyboard",
57 .start = 0x60,
58 .end = 0x6f,
59 .flags = IORESOURCE_BUSY
60 },
61 {
62 .name = "dma page reg",
63 .start = 0x80,
64 .end = 0x8f,
65 .flags = IORESOURCE_BUSY
66 },
67 {
68 .name = "dma2",
69 .start = 0xc0,
70 .end = 0xdf,
71 .flags = IORESOURCE_BUSY
72 },
73};
74
75const char *get_system_type(void)
76{
77 return "MIPS Malta";
78}
79
80#if defined(CONFIG_MIPS_MT_SMTC)
81const char display_string[] = " SMTC LINUX ON MALTA ";
82#else
83const char display_string[] = " LINUX ON MALTA ";
84#endif /* CONFIG_MIPS_MT_SMTC */
85
86#ifdef CONFIG_BLK_DEV_FD
87static void __init fd_activate(void)
88{
89 /*
90 * Activate Floppy Controller in the SMSC FDC37M817 Super I/O
91 * Controller.
92 * Done by YAMON 2.00 onwards
93 */
94 /* Entering config state. */
95 SMSC_WRITE(SMSC_CONFIG_ENTER, SMSC_CONFIG_REG);
96
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);
102
103 /* Exit config state. */
104 SMSC_WRITE(SMSC_CONFIG_EXIT, SMSC_CONFIG_REG);
105}
106#endif
107
108#ifdef CONFIG_BLK_DEV_IDE
109static void __init pci_clock_check(void)
110{
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
116 };
117 int pciclock = pciclocks[jmpr];
118 char *argptr = prom_getcmdline();
119
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");
128 }
129}
130#endif
131
132#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
133static void __init screen_info_setup(void)
134{
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
148 };
149}
150#endif
151
152static void __init bonito_quirks_setup(void)
153{
154 char *argptr;
155
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;
162
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");
167
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");
181 }
182 } else
183 panic("Hardware DMA cache coherency not supported");
184#endif
185}
186
187void __init plat_mem_setup(void)
188{
189 unsigned int i;
190
191 mips_pcibios_init();
192
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);
196
197 /*
198 * Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
199 */
200 enable_dma(4);
201
202#ifdef CONFIG_KGDB
203 kgdb_config();
204#endif
205
206#ifdef CONFIG_DMA_COHERENT
207 if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
208 panic("Hardware DMA cache coherency not supported");
209#endif
210
211 if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO)
212 bonito_quirks_setup();
213
214#ifdef CONFIG_BLK_DEV_IDE
215 pci_clock_check();
216#endif
217
218#ifdef CONFIG_BLK_DEV_FD
219 fd_activate();
220#endif
221
222#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
223 screen_info_setup();
224#endif
225 mips_reboot_setup();
226
227 board_be_init = malta_be_init;
228 board_be_handler = malta_be_handler;
229}