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authorGreg Ungerer <gerg@snapgear.com>2005-09-08 19:32:14 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-08 20:27:36 -0400
commit8c2b58ce716112cbba167b0abcb9558c118b8c9a (patch)
treeab47cc76847720986206dc8b73db5ff2f79a6a18 /arch/m68knommu/platform
parent55f37debf75f34e4fdd42ea1a81c1cea60c7ad9f (diff)
[PATCH] m68knommu: create common config code for all 68VZ328 platforms
Create common 68VZ328 config code. It is essentially the same for all boards that use this, so no point having a version of it for each. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m68knommu/platform')
-rw-r--r--arch/m68knommu/platform/68VZ328/config.c210
1 files changed, 210 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/68VZ328/config.c b/arch/m68knommu/platform/68VZ328/config.c
new file mode 100644
index 000000000000..d926524cdf82
--- /dev/null
+++ b/arch/m68knommu/platform/68VZ328/config.c
@@ -0,0 +1,210 @@
1/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/68VZ328/config.c
5 *
6 * Copyright (C) 1993 Hamish Macdonald
7 * Copyright (C) 1999 D. Jeff Dionne
8 * Copyright (C) 2001 Georges Menie, Ken Desmet
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive
12 * for more details.
13 */
14
15/***************************************************************************/
16
17#include <linux/config.h>
18#include <linux/types.h>
19#include <linux/kernel.h>
20#include <linux/mm.h>
21#include <linux/tty.h>
22#include <linux/console.h>
23#include <linux/kd.h>
24#include <linux/netdevice.h>
25
26#include <asm/setup.h>
27#include <asm/system.h>
28#include <asm/pgtable.h>
29#include <asm/irq.h>
30#include <asm/machdep.h>
31#include <asm/MC68VZ328.h>
32#include <asm/bootstd.h>
33
34#ifdef CONFIG_INIT_LCD
35#include "bootlogo.h"
36#endif
37
38/***************************************************************************/
39
40void m68328_timer_init(irqreturn_t (*timer_routine) (int, void *, struct pt_regs *));
41void m68328_timer_tick(void);
42unsigned long m68328_timer_gettimeoffset(void);
43void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);
44
45/***************************************************************************/
46/* Init Drangon Engine hardware */
47/***************************************************************************/
48#if defined(CONFIG_DRAGEN2)
49
50static void m68vz328_reset(void)
51{
52 local_irq_disable();
53
54#ifdef CONFIG_INIT_LCD
55 PBDATA |= 0x20; /* disable CCFL light */
56 PKDATA |= 0x4; /* disable LCD controller */
57 LCKCON = 0;
58#endif
59
60 __asm__ __volatile__(
61 "reset\n\t"
62 "moveal #0x04000000, %a0\n\t"
63 "moveal 0(%a0), %sp\n\t"
64 "moveal 4(%a0), %a0\n\t"
65 "jmp (%a0)"
66 );
67}
68
69static void init_hardware(char *command, int size)
70{
71#ifdef CONFIG_DIRECT_IO_ACCESS
72 SCR = 0x10; /* allow user access to internal registers */
73#endif
74
75 /* CSGB Init */
76 CSGBB = 0x4000;
77 CSB = 0x1a1;
78
79 /* CS8900 init */
80 /* PK3: hardware sleep function pin, active low */
81 PKSEL |= PK(3); /* select pin as I/O */
82 PKDIR |= PK(3); /* select pin as output */
83 PKDATA |= PK(3); /* set pin high */
84
85 /* PF5: hardware reset function pin, active high */
86 PFSEL |= PF(5); /* select pin as I/O */
87 PFDIR |= PF(5); /* select pin as output */
88 PFDATA &= ~PF(5); /* set pin low */
89
90 /* cs8900 hardware reset */
91 PFDATA |= PF(5);
92 { int i; for (i = 0; i < 32000; ++i); }
93 PFDATA &= ~PF(5);
94
95 /* INT1 enable (cs8900 IRQ) */
96 PDPOL &= ~PD(1); /* active high signal */
97 PDIQEG &= ~PD(1);
98 PDIRQEN |= PD(1); /* IRQ enabled */
99
100#ifdef CONFIG_68328_SERIAL_UART2
101 /* Enable RXD TXD port bits to enable UART2 */
102 PJSEL &= ~(PJ(5) | PJ(4));
103#endif
104
105#ifdef CONFIG_INIT_LCD
106 /* initialize LCD controller */
107 LSSA = (long) screen_bits;
108 LVPW = 0x14;
109 LXMAX = 0x140;
110 LYMAX = 0xef;
111 LRRA = 0;
112 LPXCD = 3;
113 LPICF = 0x08;
114 LPOLCF = 0;
115 LCKCON = 0x80;
116 PCPDEN = 0xff;
117 PCSEL = 0;
118
119 /* Enable LCD controller */
120 PKDIR |= 0x4;
121 PKSEL |= 0x4;
122 PKDATA &= ~0x4;
123
124 /* Enable CCFL backlighting circuit */
125 PBDIR |= 0x20;
126 PBSEL |= 0x20;
127 PBDATA &= ~0x20;
128
129 /* contrast control register */
130 PFDIR |= 0x1;
131 PFSEL &= ~0x1;
132 PWMR = 0x037F;
133#endif
134}
135
136/***************************************************************************/
137/* Init RT-Control uCdimm hardware */
138/***************************************************************************/
139#elif defined(CONFIG_UCDIMM)
140
141static void m68vz328_reset(void)
142{
143 local_irq_disable();
144 asm volatile ("
145 moveal #0x10c00000, %a0;
146 moveb #0, 0xFFFFF300;
147 moveal 0(%a0), %sp;
148 moveal 4(%a0), %a0;
149 jmp (%a0);
150 ");
151}
152
153unsigned char *cs8900a_hwaddr;
154static int errno;
155
156_bsc0(char *, getserialnum)
157_bsc1(unsigned char *, gethwaddr, int, a)
158_bsc1(char *, getbenv, char *, a)
159
160static void init_hardware(char *command, int size)
161{
162 char *p;
163
164 printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());
165 p = cs8900a_hwaddr = gethwaddr(0);
166 printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
167 p[0], p[1], p[2], p[3], p[4], p[5]);
168 p = getbenv("APPEND");
169 if (p)
170 strcpy(p, command);
171 else
172 command[0] = 0;
173}
174
175/***************************************************************************/
176#else
177
178static void m68vz328_reset(void)
179{
180}
181
182static void init_hardware(char *command, int size)
183{
184}
185
186/***************************************************************************/
187#endif
188/***************************************************************************/
189
190void config_BSP(char *command, int size)
191{
192 printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
193
194#if defined(CONFIG_BOOTPARAM)
195 strncpy(command, CONFIG_BOOTPARAM_STRING, size);
196 command[size-1] = 0;
197#else
198 memset(command, 0, size);
199#endif
200
201 init_hardware(command, size);
202
203 mach_sched_init = (void *) m68328_timer_init;
204 mach_tick = m68328_timer_tick;
205 mach_gettimeoffset = m68328_timer_gettimeoffset;
206 mach_gettod = m68328_timer_gettod;
207 mach_reset = m68vz328_reset;
208}
209
210/***************************************************************************/