packages/hal/arm/mx51/karo/v1_0/src/redboot_cmds.c

   1 //==========================================================================
   2 //
   3 //      redboot_cmds.c
   4 //
   5 //      Board [platform] specific RedBoot commands
   6 //
   7 //==========================================================================
   8 //####ECOSGPLCOPYRIGHTBEGIN####
   9 // -------------------------------------------
  10 // This file is part of eCos, the Embedded Configurable Operating System.
  11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
  12 //
  13 // eCos is free software; you can redistribute it and/or modify it under
  14 // the terms of the GNU General Public License as published by the Free
  15 // Software Foundation; either version 2 or (at your option) any later version.
  16 //
  17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
  18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  19 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  20 // for more details.
  21 //
  22 // You should have received a copy of the GNU General Public License along
  23 // with eCos; if not, write to the Free Software Foundation, Inc.,
  24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  25 //
  26 // As a special exception, if other files instantiate templates or use macros
  27 // or inline functions from this file, or you compile this file and link it
  28 // with other works to produce a work based on this file, this file does not
  29 // by itself cause the resulting work to be covered by the GNU General Public
  30 // License. However the source code for this file must still be made available
  31 // in accordance with section (3) of the GNU General Public License.
  32 //
  33 // This exception does not invalidate any other reasons why a work based on
  34 // this file might be covered by the GNU General Public License.
  35 //
  36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
  37 // at http://sources.redhat.com/ecos/ecos-license/
  38 // -------------------------------------------
  39 //####ECOSGPLCOPYRIGHTEND####
  40 //==========================================================================
  41 #include <redboot.h>
  42 #include <cyg/hal/hal_intr.h>
  43 #include <cyg/hal/hal_cache.h>
  44 #include <cyg/hal/plf_mmap.h>
  45 #include <cyg/hal/karo_tx51.h>          // Platform specific hardware definitions
  46
  47 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
  48 #include <flash_config.h>
  49
  50 #if (REDBOOT_IMAGE_SIZE != CYGBLD_REDBOOT_MIN_IMAGE_SIZE)
  51 #error REDBOOT_IMAGE_SIZE != CYGBLD_REDBOOT_MIN_IMAGE_SIZE
  52 #endif
  53
  54 #endif  //CYGSEM_REDBOOT_FLASH_CONFIG
  55
  56 #ifdef CYGPKG_IO_FLASH
  57 #include <cyg/io/flash.h>
  58 #endif
  59
  60 char HAL_PLATFORM_EXTRA[40] = "PASS x.x [x32 DDR]";
  61
  62 static void runImg(int argc, char *argv[]);
  63 static void do_mem(int argc, char *argv[]);
  64
  65 RedBoot_cmd("mem",
  66                         "Set a memory location",
  67                         "[-h|-b] [-n] [-a <address>] <data>",
  68                         do_mem
  69         );
  70
  71 RedBoot_cmd("run",
  72                         "Run an image at a location with MMU off",
  73                         "[<virtual addr>]",
  74                         runImg
  75         );
  76
  77 static void do_mem(int argc, char *argv[])
  78 {
  79         struct option_info opts[4];
  80         bool mem_half_word, mem_byte;
  81         bool no_verify;
  82         bool addr_set;
  83         unsigned long address;
  84         unsigned int value;
  85         int ret;
  86         init_opts(&opts[0], 'b', false, OPTION_ARG_TYPE_FLG,
  87                         &mem_byte, NULL, "write a byte");
  88         init_opts(&opts[1], 'h', false, OPTION_ARG_TYPE_FLG,
  89                         &mem_half_word, NULL, "write a half-word");
  90         init_opts(&opts[2], 'a', true, OPTION_ARG_TYPE_NUM,
  91                         &address, &addr_set, "address to write to");
  92         init_opts(&opts[3], 'n', false, OPTION_ARG_TYPE_FLG,
  93                         &no_verify, NULL, "noverify");
  94
  95         ret = scan_opts(argc, argv, 1, opts, sizeof(opts) / sizeof(opts[0]),
  96                                         &value, OPTION_ARG_TYPE_NUM, "value to be written");
  97         if (ret == 0) {
  98                 return;
  99         }
 100         if (!addr_set) {
 101                 diag_printf("** Error: '-a <address>' must be specified\n");
 102                 return;
 103         }
 104         if (ret == argc + 1) {
 105                 diag_printf("** Error: non-option argument '<value>' must be specified\n");
 106                 return;
 107         }
 108         if (mem_byte && mem_half_word) {
 109                 diag_printf("** Error: Should not specify both byte and half-word access\n");
 110         } else if (mem_byte) {
 111                 value &= 0xff;
 112                 *(volatile cyg_uint8*)address = (cyg_uint8)value;
 113                 if (no_verify) {
 114                         diag_printf("  Set 0x%08lX to 0x%02X\n", address, value);
 115                 } else {
 116                         diag_printf("  Set 0x%08lX to 0x%02X (result 0x%02X)\n",
 117                                                 address, value, (int)*(cyg_uint8*)address );
 118                 }
 119         } else if (mem_half_word) {
 120                 if (address & 1) {
 121                         diag_printf("** Error: address for half-word access must be half-word aligned\n");
 122                 } else {
 123                         value &= 0xffff;
 124                         *(volatile cyg_uint16*)address = (cyg_uint16)value;
 125                         if (no_verify) {
 126                                 diag_printf("  Set 0x%08lX to 0x%04X\n", address, value);
 127                         } else {
 128                                 diag_printf("  Set 0x%08lX to 0x%04X (result 0x%04X)\n",
 129                                                         address, value, (int)*(cyg_uint16*)address);
 130                         }
 131                 }
 132         } else {
 133                 if (address & 3) {
 134                         diag_printf("** Error: address for word access must be word aligned\n");
 135                 } else {
 136                         *(volatile cyg_uint32*)address = (cyg_uint32)value;
 137                         if (no_verify) {
 138                                 diag_printf("  Set 0x%08lX to 0x%08X\n", address, value);
 139                         } else {
 140                                 diag_printf("  Set 0x%08lX to 0x%08X (result 0x%08X)\n",
 141                                                         address, value, (int)*(cyg_uint32*)address);
 142                         }
 143                 }
 144         }
 145 }
 146
 147 void launchRunImg(unsigned long addr)
 148 {
 149         asm volatile ("mov r1, r0;");
 150         HAL_MMU_OFF();
 151         asm volatile (
 152                 "mov r11, #0;"
 153                 "mov r12, #0;"
 154                 "mrs r10, cpsr;"
 155                 "bic r10, r10, #0xF0000000;"
 156                 "msr cpsr_f, r10;"
 157                 "mov pc, r1"
 158                 );
 159 }
 160
 161 static void runImg(int argc,char *argv[])
 162 {
 163         unsigned int virt_addr, phys_addr;
 164
 165         // Default physical entry point for Symbian
 166         if (entry_address == 0xFFFFFFFF)
 167                 virt_addr = 0x800000;
 168         else
 169                 virt_addr = entry_address;
 170
 171         if (!scan_opts(argc, argv, 1, 0, 0, &virt_addr,
 172                                         OPTION_ARG_TYPE_NUM, "virtual address"))
 173                 return;
 174
 175         if (entry_address != 0xFFFFFFFF)
 176                 diag_printf("load entry_address=0x%lx\n", entry_address);
 177         HAL_VIRT_TO_PHYS_ADDRESS(virt_addr, phys_addr);
 178
 179         diag_printf("virt_addr=0x%x\n",virt_addr);
 180         diag_printf("phys_addr=0x%x\n",phys_addr);
 181
 182         launchRunImg(phys_addr);
 183 }
 184
 185 #if defined(CYGSEM_REDBOOT_FLASH_CONFIG) && defined(CYG_HAL_STARTUP_ROMRAM)
 186
 187 RedBoot_cmd("romupdate",
 188                         "Update Redboot with currently running image",
 189                         "",
 190                         romupdate
 191         );
 192
 193 #ifdef CYGPKG_IO_FLASH
 194 void romupdate(int argc, char *argv[])
 195 {
 196         void *err_addr, *base_addr;
 197         int stat;
 198
 199         base_addr = (void*)(MXC_NAND_BASE_DUMMY + CYGBLD_REDBOOT_FLASH_BOOT_OFFSET);
 200         diag_printf("Updating RedBoot in NAND flash\n");
 201
 202         // Erase area to be programmed
 203         if ((stat = flash_erase(base_addr, CYGBLD_REDBOOT_MIN_IMAGE_SIZE, &err_addr)) != 0) {
 204                 diag_printf("Can't erase region at %p: %s\n",
 205                                         err_addr, flash_errmsg(stat));
 206                 return;
 207         }
 208         // Now program it
 209         if ((stat = flash_program(base_addr, ram_end,
 210                                                                         CYGBLD_REDBOOT_MIN_IMAGE_SIZE, &err_addr)) != 0) {
 211                 diag_printf("Can't program region at %p: %s\n",
 212                                         err_addr, flash_errmsg(stat));
 213         }
 214 }
 215 #endif //CYGPKG_IO_FLASH
 216 #endif /* CYG_HAL_STARTUP_ROMRAM */