Mercurial > ecos-v3_0-branch

annotate packages/hal/arm/ebsa285/current/src/redboot_cmds.c @ 130:eb9fd8c04db3 ecos-sw-2000-10-23

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge from eCos master repository on 2000-10-23-17:01:37-BST
author jlarmour
date Mon, 23 Oct 2000 17:10:57 +0000
parents
children 289bf90c6a9b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
130
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
1 //==========================================================================
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
2 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
3 // redboot_cmds.c
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
4 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
5 // EBSA-285 [platform] specific RedBoot commands
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
6 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
7 //==========================================================================
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
8 //####COPYRIGHTBEGIN####
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
9 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
10 // -------------------------------------------
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
11 // The contents of this file are subject to the Red Hat eCos Public License
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
12 // Version 1.1 (the "License"); you may not use this file except in
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
13 // compliance with the License. You may obtain a copy of the License at
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
14 // http://www.redhat.com/
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
15 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
16 // Software distributed under the License is distributed on an "AS IS"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
18 // License for the specific language governing rights and limitations under
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
19 // the License.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
20 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
21 // The Original Code is eCos - Embedded Configurable Operating System,
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
22 // released September 30, 1998.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
23 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
24 // The Initial Developer of the Original Code is Red Hat.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
25 // Portions created by Red Hat are
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
27 // All Rights Reserved.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
28 // -------------------------------------------
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
29 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
30 //####COPYRIGHTEND####
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
31 //==========================================================================
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
32 //#####DESCRIPTIONBEGIN####
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
33 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
34 // Author(s): gthomas
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
35 // Contributors: gthomas
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
36 // Date: 2000-07-14
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
37 // Purpose:
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
38 // Description:
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
39 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
40 // This code is part of RedBoot (tm).
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
41 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
42 //####DESCRIPTIONEND####
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
43 //
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
44 //==========================================================================
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
45
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
46 #include <redboot.h>
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
47
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
48 #include <cyg/hal/hal_ebsa285.h> // Board definitions
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
49 #include <cyg/hal/hal_intr.h>
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
50 #include <cyg/hal/hal_cache.h>
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
51
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
52
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
53 // Exported CLI function(s)
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
54 RedBoot_cmd("exec",
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
55 "Execute an image - with MMU off",
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
56 "[-w timeout] [<entry_point>]",
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
57 do_exec
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
58 );
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
59
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
60 typedef void code_fun(void);
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
61
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
62 static void
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
63 do_exec(int argc, char *argv[])
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
64 {
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
65 unsigned long entry;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
66 unsigned long oldints;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
67 code_fun *fun, *prg;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
68 bool wait_time_set;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
69 int wait_time, res, i;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
70 struct option_info opts[1];
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
71 char line[8];
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
72 unsigned long _prg[32], *ip;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
73
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
74 entry = (unsigned long)entry_address; // Default from last 'load' operation
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
75 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
76 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
77 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
78 {
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
79 return;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
80 }
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
81 if (wait_time_set) {
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
82 printf("About to start execution at %p - abort with ^C within %d seconds\n",
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
83 (void *)entry, wait_time);
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
84 res = gets(line, sizeof(line), wait_time*1000);
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
85 if (res == -2) {
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
86 return;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
87 }
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
88 }
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
89 ip = (unsigned long *)&&lab1;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
90 for (i = 0; i < (unsigned long)&&end1-(unsigned long)&&lab1; i++) {
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
91 _prg[i] = *ip++;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
92 }
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
93 HAL_DISABLE_INTERRUPTS(oldints);
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
94 HAL_DCACHE_SYNC();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
95 HAL_ICACHE_DISABLE();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
96 HAL_DCACHE_DISABLE();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
97 HAL_DCACHE_SYNC();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
98 HAL_ICACHE_INVALIDATE_ALL();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
99 HAL_DCACHE_INVALIDATE_ALL();
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
100 ip = (unsigned long *)_prg;
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
101 // Not call this code
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
102 fun = (code_fun *)((entry & 0x0FFFFFFF) + EBSA285_RAM_BANK0_BASE); // Absolute address
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
103 prg = (code_fun *)((unsigned long)ip + EBSA285_RAM_BANK0_BASE); // Absolute address
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
104 asm volatile ("mov r5,%0" : : "r"(fun) : "r5");
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
105 asm volatile ("mov r1,%0; mov pc,r1" : : "r"(prg));
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
106 lab1:
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
107 // Tricky code. We are currently running with the MMU on and the
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
108 // memory map convoluted from 1-1. This code must be copied to RAM
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
109 // and then executed at the non-mapped address. Then when the code
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
110 // turns off the MMU, the control flow is unchanged and control can
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
111 // be passed safely to the program to be executed.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
112 // This magic was created in order to be able to execute standard
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
113 // Linux kernels with as little change/perturberance as possible.
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
114 asm volatile ("mrs r0,cpsr;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
115 "msr spsr,r0;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
116 "bic r0,r0,#0x1F;" // Put processor in IRQ mode
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
117 "orr r0,r0,#0x12;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
118 "msr cpsr,r0;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
119 "mov lr,r5;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
120 "mov sp,r5;" // Give the kernel a stack just below the entry point
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
121 "mov r1,#0;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
122 "mcr p15,0,r1,c1,c0;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
123 "mov r0,#0;" // Set up EBSA285 load magic
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
124 "mov r1,#0x4;"
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
125 "movs pc,lr" : : );
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
126 end1:
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents:
diff changeset
127 }