Some Davinci processors supports the Application Image Script (AIS) boot process. The patch adds the generation of the AIS image inside the mkimage tool to make possible to generate a bootable U-boot without external tools (TI Davinci AIS Generator). Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Wolfgang Denk <wd@denx.de>master
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/*
|
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* (C) Copyright 2011 |
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* Stefano Babic, DENX Software Engineering, sbabic@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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/* Required to obtain the getline prototype from stdio.h */ |
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#define _GNU_SOURCE |
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#include "mkimage.h" |
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#include "aisimage.h" |
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#include <image.h> |
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#define IS_FNC_EXEC(c) (cmd_table[c].AIS_cmd == AIS_CMD_FNLOAD) |
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#define WORD_ALIGN0 4 |
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#define WORD_ALIGN(len) (((len)+WORD_ALIGN0-1) & ~(WORD_ALIGN0-1)) |
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#define MAX_CMD_BUFFER 4096 |
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
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static uint32_t ais_img_size; |
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/*
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* Supported commands for configuration file |
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*/ |
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static table_entry_t aisimage_cmds[] = { |
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{CMD_DATA, "DATA", "Reg Write Data"}, |
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{CMD_FILL, "FILL", "Fill range with pattern"}, |
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{CMD_CRCON, "CRCON", "CRC Enable"}, |
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{CMD_CRCOFF, "CRCOFF", "CRC Disable"}, |
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{CMD_CRCCHECK, "CRCCHECK", "CRC Validate"}, |
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{CMD_JMPCLOSE, "JMPCLOSE", "Jump & Close"}, |
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{CMD_JMP, "JMP", "Jump"}, |
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{CMD_SEQREAD, "SEQREAD", "Sequential read"}, |
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{CMD_PLL0, "PLL0", "PLL0"}, |
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{CMD_PLL1, "PLL1", "PLL1"}, |
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{CMD_CLK, "CLK", "Clock configuration"}, |
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{CMD_DDR2, "DDR2", "DDR2 Configuration"}, |
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{CMD_EMIFA, "EMIFA", "EMIFA"}, |
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{CMD_EMIFA_ASYNC, "EMIFA_ASYNC", "EMIFA Async"}, |
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{CMD_PLL, "PLL", "PLL & Clock configuration"}, |
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{CMD_PSC, "PSC", "PSC setup"}, |
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{CMD_PINMUX, "PINMUX", "Pinmux setup"}, |
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{CMD_BOOTTABLE, "BOOT_TABLE", "Boot table command"}, |
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{-1, "", ""}, |
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}; |
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static struct ais_func_exec { |
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uint32_t index; |
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uint32_t argcnt; |
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} ais_func_table[] = { |
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[CMD_PLL0] = {0, 2}, |
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[CMD_PLL1] = {1, 2}, |
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[CMD_CLK] = {2, 1}, |
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[CMD_DDR2] = {3, 8}, |
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[CMD_EMIFA] = {4, 5}, |
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[CMD_EMIFA_ASYNC] = {5, 5}, |
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[CMD_PLL] = {6, 3}, |
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[CMD_PSC] = {7, 1}, |
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[CMD_PINMUX] = {8, 3} |
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}; |
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static struct cmd_table_t { |
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uint32_t nargs; |
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uint32_t AIS_cmd; |
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} cmd_table[] = { |
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[CMD_FILL] = { 4, AIS_CMD_FILL}, |
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[CMD_CRCON] = { 0, AIS_CMD_ENCRC}, |
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[CMD_CRCOFF] = { 0, AIS_CMD_DISCRC}, |
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[CMD_CRCCHECK] = { 2, AIS_CMD_ENCRC}, |
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[CMD_JMPCLOSE] = { 1, AIS_CMD_JMPCLOSE}, |
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[CMD_JMP] = { 1, AIS_CMD_JMP}, |
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[CMD_SEQREAD] = { 0, AIS_CMD_SEQREAD}, |
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[CMD_PLL0] = { 2, AIS_CMD_FNLOAD}, |
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[CMD_PLL1] = { 2, AIS_CMD_FNLOAD}, |
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[CMD_CLK] = { 1, AIS_CMD_FNLOAD}, |
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[CMD_DDR2] = { 8, AIS_CMD_FNLOAD}, |
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[CMD_EMIFA] = { 5, AIS_CMD_FNLOAD}, |
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[CMD_EMIFA_ASYNC] = { 5, AIS_CMD_FNLOAD}, |
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[CMD_PLL] = { 3, AIS_CMD_FNLOAD}, |
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[CMD_PSC] = { 1, AIS_CMD_FNLOAD}, |
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[CMD_PINMUX] = { 3, AIS_CMD_FNLOAD}, |
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[CMD_BOOTTABLE] = { 4, AIS_CMD_BOOTTBL}, |
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}; |
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static uint32_t get_cfg_value(char *token, char *name, int linenr) |
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{ |
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char *endptr; |
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uint32_t value; |
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errno = 0; |
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value = strtoul(token, &endptr, 16); |
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if (errno || (token == endptr)) { |
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fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n", |
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name, linenr, token); |
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exit(EXIT_FAILURE); |
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} |
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return value; |
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} |
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static int get_ais_table_id(uint32_t *ptr) |
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{ |
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int i; |
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int func_no; |
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for (i = 0; i < ARRAY_SIZE(cmd_table); i++) { |
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if (*ptr == cmd_table[i].AIS_cmd) { |
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if (cmd_table[i].AIS_cmd != AIS_CMD_FNLOAD) |
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return i; |
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func_no = ((struct ais_cmd_func *)ptr)->func_args |
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& 0xFFFF; |
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if (func_no == ais_func_table[i].index) |
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return i; |
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} |
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} |
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return -1; |
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} |
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static void aisimage_print_header(const void *hdr) |
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{ |
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struct ais_header *ais_hdr = (struct ais_header *)hdr; |
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uint32_t *ptr; |
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struct ais_cmd_load *ais_load; |
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int id; |
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if (ais_hdr->magic != AIS_MAGIC_WORD) { |
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fprintf(stderr, "Error: - AIS Magic Number not found\n"); |
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return; |
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} |
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fprintf(stdout, "Image Type: TI Davinci AIS Boot Image\n"); |
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fprintf(stdout, "AIS magic : %08x\n", ais_hdr->magic); |
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ptr = (uint32_t *)&ais_hdr->magic; |
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ptr++; |
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while (*ptr != AIS_CMD_JMPCLOSE) { |
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/* Check if we find the image */ |
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if (*ptr == AIS_CMD_LOAD) { |
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ais_load = (struct ais_cmd_load *)ptr; |
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fprintf(stdout, "Image at : 0x%08x size 0x%08x\n", |
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ais_load->addr, |
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ais_load->size); |
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ptr = ais_load->data + ais_load->size / sizeof(*ptr); |
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continue; |
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} |
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id = get_ais_table_id(ptr); |
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if (id < 0) { |
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fprintf(stderr, "Error: - AIS Image corrupted\n"); |
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return; |
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} |
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fprintf(stdout, "AIS cmd : %s\n", |
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get_table_entry_name(aisimage_cmds, NULL, id)); |
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ptr += cmd_table[id].nargs + IS_FNC_EXEC(id) + 1; |
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if (((void *)ptr - hdr) > ais_img_size) { |
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fprintf(stderr, |
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"AIS Image not terminated by JMPCLOSE\n"); |
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return; |
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} |
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} |
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} |
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static uint32_t *ais_insert_cmd_header(uint32_t cmd, uint32_t nargs, |
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uint32_t *parms, struct image_type_params *tparams, |
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uint32_t *ptr, uint32_t size) |
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{ |
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int i; |
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*ptr++ = cmd_table[cmd].AIS_cmd; |
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if (IS_FNC_EXEC(cmd)) |
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*ptr++ = ((nargs & 0xFFFF) << 16) + ais_func_table[cmd].index; |
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/* Copy parameters */ |
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for (i = 0; i < nargs; i++) |
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*ptr++ = cpu_to_le32(parms[i]); |
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return ptr; |
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} |
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static uint32_t *ais_alloc_buffer(struct mkimage_params *params) |
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{ |
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int dfd; |
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struct stat sbuf; |
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char *datafile = params->datafile; |
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uint32_t *ptr; |
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dfd = open(datafile, O_RDONLY|O_BINARY); |
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if (dfd < 0) { |
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fprintf(stderr, "%s: Can't open %s: %s\n", |
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params->cmdname, datafile, strerror(errno)); |
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exit(EXIT_FAILURE); |
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} |
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if (fstat(dfd, &sbuf) < 0) { |
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fprintf(stderr, "%s: Can't stat %s: %s\n", |
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params->cmdname, datafile, strerror(errno)); |
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exit(EXIT_FAILURE); |
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} |
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/*
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* Place for header is allocated. The size is taken from |
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* the size of the datafile, that the ais_image_generate() |
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* will copy into the header. Copying the datafile |
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* is not left to the main program, because after the datafile |
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* the header must be terminated with the Jump & Close command. |
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*/ |
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ais_img_size = WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER; |
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ptr = (uint32_t *)malloc(WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER); |
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if (!ptr) { |
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fprintf(stderr, "%s: malloc return failure: %s\n", |
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params->cmdname, strerror(errno)); |
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exit(EXIT_FAILURE); |
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} |
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close(dfd); |
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return ptr; |
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} |
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static uint32_t *ais_copy_image(struct mkimage_params *params, |
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uint32_t *aisptr) |
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{ |
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int dfd; |
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struct stat sbuf; |
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char *datafile = params->datafile; |
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void *ptr; |
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dfd = open(datafile, O_RDONLY|O_BINARY); |
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if (dfd < 0) { |
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fprintf(stderr, "%s: Can't open %s: %s\n", |
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params->cmdname, datafile, strerror(errno)); |
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exit(EXIT_FAILURE); |
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} |
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if (fstat(dfd, &sbuf) < 0) { |
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fprintf(stderr, "%s: Can't stat %s: %s\n", |
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params->cmdname, datafile, strerror(errno)); |
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exit(EXIT_FAILURE); |
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} |
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ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0); |
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*aisptr++ = AIS_CMD_LOAD; |
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*aisptr++ = params->ep; |
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*aisptr++ = sbuf.st_size; |
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memcpy((void *)aisptr, ptr, sbuf.st_size); |
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aisptr += WORD_ALIGN(sbuf.st_size) / sizeof(uint32_t); |
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(void) munmap((void *)ptr, sbuf.st_size); |
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(void) close(dfd); |
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return aisptr; |
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} |
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static int aisimage_generate(struct mkimage_params *params, |
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struct image_type_params *tparams) |
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{ |
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FILE *fd = NULL; |
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char *line = NULL; |
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char *token, *saveptr1, *saveptr2; |
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int lineno = 0; |
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int fld; |
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size_t len; |
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int32_t cmd; |
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uint32_t nargs, cmd_parms[10]; |
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uint32_t value, size; |
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char *name = params->imagename; |
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uint32_t *aishdr, tsize; |
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fd = fopen(name, "r"); |
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if (fd == 0) { |
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fprintf(stderr, |
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"Error: %s - Can't open AIS configuration\n", name); |
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exit(EXIT_FAILURE); |
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} |
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/*
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* the size of the header is variable and is computed |
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* scanning the configuration file. |
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*/ |
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tparams->header_size = 0; |
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/*
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* Start allocating a buffer suitable for most command |
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* The buffer is then reallocated if it is too small |
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*/ |
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aishdr = ais_alloc_buffer(params); |
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tparams->hdr = aishdr; |
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*aishdr++ = AIS_MAGIC_WORD; |
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/* Very simple parsing, line starting with # are comments
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* and are dropped |
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*/ |
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while ((getline(&line, &len, fd)) > 0) { |
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lineno++; |
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token = strtok_r(line, "\r\n", &saveptr1); |
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if (token == NULL) |
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continue; |
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/* Check inside the single line */ |
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line = token; |
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fld = CFG_COMMAND; |
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cmd = CMD_INVALID; |
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nargs = 0; |
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while (token != NULL) { |
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token = strtok_r(line, " \t", &saveptr2); |
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if (token == NULL) |
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break; |
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/* Drop all text starting with '#' as comments */ |
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if (token[0] == '#') |
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break; |
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switch (fld) { |
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case CFG_COMMAND: |
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cmd = get_table_entry_id(aisimage_cmds, |
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"aisimage commands", token); |
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if (cmd < 0) { |
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fprintf(stderr, |
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"Error: %s[%d] - Invalid command" |
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"(%s)\n", name, lineno, token); |
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exit(EXIT_FAILURE); |
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} |
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break; |
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case CFG_VALUE: |
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value = get_cfg_value(token, name, lineno); |
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cmd_parms[nargs++] = value; |
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if (nargs > cmd_table[cmd].nargs) { |
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fprintf(stderr, |
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"Error: %s[%d] - too much arguments:" |
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"(%s) for command %s\n", name, |
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lineno, token, |
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aisimage_cmds[cmd].sname); |
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exit(EXIT_FAILURE); |
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} |
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break; |
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} |
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line = NULL; |
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fld = CFG_VALUE; |
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} |
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if (cmd != CMD_INVALID) { |
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/* Now insert the command into the header */ |
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aishdr = ais_insert_cmd_header(cmd, nargs, cmd_parms, |
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tparams, aishdr, tsize); |
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} |
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} |
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fclose(fd); |
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aishdr = ais_copy_image(params, aishdr); |
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/* Add Jmp & Close */ |
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*aishdr++ = AIS_CMD_JMPCLOSE; |
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*aishdr++ = params->ep; |
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size = (aishdr - (uint32_t *)tparams->hdr) * sizeof(uint32_t); |
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tparams->header_size = size; |
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return 0; |
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} |
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static int aisimage_check_image_types(uint8_t type) |
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{ |
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if (type == IH_TYPE_AISIMAGE) |
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return EXIT_SUCCESS; |
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else |
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return EXIT_FAILURE; |
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} |
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static int aisimage_verify_header(unsigned char *ptr, int image_size, |
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struct mkimage_params *params) |
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{ |
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struct ais_header *ais_hdr = (struct ais_header *)ptr; |
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if (ais_hdr->magic != AIS_MAGIC_WORD) |
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return -FDT_ERR_BADSTRUCTURE; |
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/* Store the total size to remember in print_hdr */ |
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ais_img_size = image_size; |
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return 0; |
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} |
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static void aisimage_set_header(void *ptr, struct stat *sbuf, int ifd, |
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struct mkimage_params *params) |
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{ |
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} |
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int aisimage_check_params(struct mkimage_params *params) |
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{ |
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if (!params) |
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return CFG_INVALID; |
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if (!strlen(params->imagename)) { |
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fprintf(stderr, "Error: %s - Configuration file not specified, " |
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"it is needed for aisimage generation\n", |
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params->cmdname); |
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return CFG_INVALID; |
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} |
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/*
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* Check parameters: |
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* XIP is not allowed and verify that incompatible |
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* parameters are not sent at the same time |
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* For example, if list is required a data image must not be provided |
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*/ |
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return (params->dflag && (params->fflag || params->lflag)) || |
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(params->fflag && (params->dflag || params->lflag)) || |
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(params->lflag && (params->dflag || params->fflag)) || |
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(params->xflag) || !(strlen(params->imagename)); |
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} |
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/*
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* aisimage parameters |
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*/ |
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static struct image_type_params aisimage_params = { |
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.name = "TI Davinci AIS Boot Image support", |
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.header_size = 0, |
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.hdr = NULL, |
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.check_image_type = aisimage_check_image_types, |
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.verify_header = aisimage_verify_header, |
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.print_header = aisimage_print_header, |
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.set_header = aisimage_set_header, |
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.check_params = aisimage_check_params, |
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.vrec_header = aisimage_generate, |
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}; |
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void init_ais_image_type(void) |
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{ |
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mkimage_register(&aisimage_params); |
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} |
@ -0,0 +1,97 @@ |
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/*
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* (C) Copyright 2011 |
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* Stefano Babic, DENX Software Engineering, sbabic@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#ifndef _AISIMAGE_H_ |
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#define _AISIMAGE_H_ |
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/* all values are for little endian systems */ |
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#define AIS_MAGIC_WORD 0x41504954 |
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#define AIS_FCN_MAX 8 |
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enum { |
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AIS_CMD_LOAD = 0x58535901, |
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AIS_CMD_VALCRC = 0x58535902, |
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AIS_CMD_ENCRC = 0x58535903, |
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AIS_CMD_DISCRC = 0x58535904, |
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AIS_CMD_JMP = 0x58535905, |
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AIS_CMD_JMPCLOSE = 0x58535906, |
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AIS_CMD_BOOTTBL = 0x58535907, |
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AIS_CMD_FILL = 0x5853590A, |
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AIS_CMD_FNLOAD = 0x5853590D, |
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AIS_CMD_SEQREAD = 0x58535963, |
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}; |
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struct ais_cmd_load { |
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uint32_t cmd; |
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uint32_t addr; |
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uint32_t size; |
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uint32_t data[1]; |
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}; |
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struct ais_cmd_func { |
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uint32_t cmd; |
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uint32_t func_args; |
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uint32_t parms[AIS_FCN_MAX]; |
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}; |
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struct ais_cmd_jmpclose { |
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uint32_t cmd; |
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uint32_t addr; |
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}; |
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#define CMD_DATA_STR "DATA" |
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enum ais_file_cmd { |
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CMD_INVALID, |
||||
CMD_FILL, |
||||
CMD_CRCON, |
||||
CMD_CRCOFF, |
||||
CMD_CRCCHECK, |
||||
CMD_JMPCLOSE, |
||||
CMD_JMP, |
||||
CMD_SEQREAD, |
||||
CMD_DATA, |
||||
CMD_PLL0, |
||||
CMD_PLL1, |
||||
CMD_CLK, |
||||
CMD_DDR2, |
||||
CMD_EMIFA, |
||||
CMD_EMIFA_ASYNC, |
||||
CMD_PLL, |
||||
CMD_PSC, |
||||
CMD_PINMUX, |
||||
CMD_BOOTTABLE |
||||
}; |
||||
|
||||
enum aisimage_fld_types { |
||||
CFG_INVALID = -1, |
||||
CFG_COMMAND, |
||||
CFG_VALUE, |
||||
}; |
||||
|
||||
struct ais_header { |
||||
uint32_t magic; |
||||
char data[1]; |
||||
}; |
||||
|
||||
#endif /* _AISIMAGE_H_ */ |
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Reference in new issue