d3979a57b6
This commit modifies lpc_iap_call() to work with IAP commands that return additional data. If the "result" argument is non-null, 16 bytes of data (the maximum returned by any IAP command) are copied to the specified address.
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/*
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* This file is part of the Black Magic Debug project.
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*
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* Copyright (C) 2011 Mike Smith <drziplok@me.com>
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* Copyright (C) 2016 Gareth McMullin <gareth@blacksphere.co.nz>
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* Copyright (C) 2016 David Lawrence <dlaw@markforged.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*/
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#include "general.h"
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#include "target.h"
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#include "target_internal.h"
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#include "cortexm.h"
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#include "lpc_common.h"
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#define IAP_PGM_CHUNKSIZE 512 /* should fit in RAM on any device */
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#define MIN_RAM_SIZE 1024
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#define RAM_USAGE_FOR_IAP_ROUTINES 32 /* IAP routines use 32 bytes at top of ram */
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#define IAP_ENTRYPOINT 0x03000205
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#define IAP_RAM_BASE 0x02000000
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#define LPC15XX_DEVICE_ID 0x400743F8
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static bool lpc15xx_read_uid(target *t, int argc, const char *argv[])
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{
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(void)argc;
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(void)argv;
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struct lpc_flash *f = (struct lpc_flash *)t->flash;
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uint8_t uid[16];
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if (lpc_iap_call(f, uid, IAP_CMD_READUID))
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return false;
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tc_printf(t, "UID: 0x");
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for (uint32_t i = 0; i < sizeof(uid); ++i)
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tc_printf(t, "%02x", uid[i]);
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tc_printf(t, "\n");
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return true;
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}
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const struct command_s lpc15xx_cmd_list[] = {
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{"readuid", lpc15xx_read_uid, "Read out the 16-byte UID."},
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{NULL, NULL, NULL}
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};
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void lpc15xx_add_flash(target *t, uint32_t addr, size_t len, size_t erasesize)
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{
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struct lpc_flash *lf = lpc_add_flash(t, addr, len);
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lf->f.blocksize = erasesize;
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lf->f.buf_size = IAP_PGM_CHUNKSIZE;
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lf->f.write = lpc_flash_write_magic_vect;
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lf->iap_entry = IAP_ENTRYPOINT;
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lf->iap_ram = IAP_RAM_BASE;
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lf->iap_msp = IAP_RAM_BASE + MIN_RAM_SIZE - RAM_USAGE_FOR_IAP_ROUTINES;
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}
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bool
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lpc15xx_probe(target *t)
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{
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uint32_t idcode;
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uint32_t ram_size = 0;
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/* read the device ID register */
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idcode = target_mem_read32(t, LPC15XX_DEVICE_ID);
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switch (idcode) {
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case 0x00001549:
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case 0x00001519:
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ram_size = 0x9000;
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break;
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case 0x00001548:
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case 0x00001518:
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ram_size = 0x5000;
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break;
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case 0x00001547:
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case 0x00001517:
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ram_size = 0x3000;
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break;
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}
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if (ram_size) {
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t->driver = "LPC15xx";
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target_add_ram(t, 0x02000000, ram_size);
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lpc15xx_add_flash(t, 0x00000000, 0x40000, 0x1000);
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target_add_commands(t, lpc15xx_cmd_list, "LPC15xx");
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return true;
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}
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return false;
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}
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