| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * All rights reserved. |
| * Copyright (c) 2009, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <app.h> |
| #include <debug.h> |
| #include <lib/ptable.h> |
| #include <malloc.h> |
| #include <dev/flash.h> |
| #include <string.h> |
| #include <jtag.h> |
| #include <kernel/thread.h> |
| #include <smem.h> |
| #include <platform.h> |
| #include "bootimg.h" |
| |
| #define FLASH_PAGE_SIZE 2048 |
| #define FLASH_PAGE_BITS 11 |
| |
| unsigned page_size = 0; |
| unsigned page_mask = 0; |
| |
| static unsigned load_addr = 0xffffffff; |
| |
| #define ROUND_TO_PAGE(x,y) (((x) + (y)) & (~(y))) |
| |
| void acpu_clock_init(void); |
| |
| int startswith(const char *str, const char *prefix) |
| { |
| while(*prefix){ |
| if (*prefix++ != *str++) return 0; |
| } |
| return 1; |
| } |
| |
| /* XXX */ |
| void verify_flash(struct ptentry *p, void *addr, unsigned len, int extra) |
| { |
| uint32_t offset = 0; |
| void *buf = malloc(FLASH_PAGE_SIZE + extra); |
| int verify_extra = extra; |
| if(verify_extra > 4) |
| verify_extra = 16; |
| while(len > 0) { |
| flash_read_ext(p, extra, offset, buf, FLASH_PAGE_SIZE); |
| if(memcmp(addr, buf, FLASH_PAGE_SIZE + verify_extra)) { |
| dprintf(CRITICAL, "verify failed at 0x%08x\n", offset); |
| jtag_fail("verify failed"); |
| return; |
| } |
| offset += FLASH_PAGE_SIZE; |
| addr += FLASH_PAGE_SIZE; |
| len -= FLASH_PAGE_SIZE; |
| if(extra) { |
| addr += extra; |
| len -= extra; |
| } |
| } |
| dprintf(INFO, "verify done %d extra bytes\n", verify_extra); |
| jtag_okay("verify done"); |
| } |
| |
| void handle_flash(const char *name, unsigned addr, unsigned sz) |
| { |
| struct ptentry *ptn; |
| struct ptable *ptable; |
| void *data = (void *) addr; |
| unsigned extra = 0; |
| |
| ptable = flash_get_ptable(); |
| if (ptable == NULL) { |
| jtag_fail("partition table doesn't exist"); |
| return; |
| } |
| |
| ptn = ptable_find(ptable, name); |
| if (ptn == NULL) { |
| jtag_fail("unknown partition name"); |
| return; |
| } |
| |
| if (!strcmp(ptn->name, "boot") || !strcmp(ptn->name, "recovery")) { |
| if (memcmp((void *)data, BOOT_MAGIC, BOOT_MAGIC_SIZE)) { |
| jtag_fail("image is not a boot image"); |
| return; |
| } |
| } |
| |
| if (!strcmp(ptn->name, "system") || !strcmp(ptn->name, "userdata") || !strcmp(ptn->name, "persist")) |
| extra = ((page_size >> 9) * 16); |
| else |
| sz = ROUND_TO_PAGE(sz, page_mask); |
| |
| data = (void *)target_get_scratch_address(); |
| |
| dprintf(INFO, "writing %d bytes to '%s'\n", sz, ptn->name); |
| if (flash_write(ptn, extra, data, sz)) { |
| jtag_fail("flash write failure"); |
| return; |
| } |
| dprintf(INFO, "partition '%s' updated\n", ptn->name); |
| jtag_okay("Done"); |
| enter_critical_section(); |
| platform_uninit_timer(); |
| arch_disable_cache(UCACHE); |
| arch_disable_mmu(); |
| } |
| |
| static unsigned char *tmpbuf = 0; |
| |
| |
| /*XXX*/ |
| void handle_dump(const char *name, unsigned offset) |
| { |
| struct ptentry *p; |
| struct ptable *ptable; |
| |
| if(tmpbuf == 0) { |
| tmpbuf = malloc(4096); |
| } |
| |
| dprintf(INFO, "dump '%s' partition\n", name); |
| |
| ptable = flash_get_ptable(); |
| |
| if (ptable == NULL) { |
| jtag_fail("partition table doesn't exist"); |
| return; |
| } |
| |
| p = ptable_find(ptable, name); |
| |
| if(p == 0) { |
| jtag_fail("partition not found"); |
| return; |
| } else { |
| |
| #if 0 |
| /* XXX reimpl */ |
| if(flash_read_page(p->start * 64, tmpbuf, tmpbuf + 2048)){ |
| jtag_fail("flash_read() failed"); |
| return; |
| } |
| #endif |
| dprintf(INFO, "page %d data:\n", p->start * 64); |
| hexdump(tmpbuf, 256); |
| dprintf(INFO, "page %d extra:\n", p->start * 64); |
| hexdump(tmpbuf, 16); |
| jtag_okay("done"); |
| enter_critical_section(); |
| platform_uninit_timer(); |
| arch_disable_cache(UCACHE); |
| arch_disable_mmu(); |
| } |
| } |
| |
| void handle_query_load_address(unsigned addr) |
| { |
| unsigned *return_addr = (unsigned *)addr; |
| |
| if (return_addr) |
| *return_addr = target_get_scratch_address(); |
| |
| jtag_okay("done"); |
| } |
| |
| void handle_command(const char *cmd, unsigned a0, unsigned a1, unsigned a2) |
| { |
| if(startswith(cmd,"flash:")){ |
| handle_flash(cmd + 6, a0, a1); |
| return; |
| } |
| |
| if(startswith(cmd,"dump:")){ |
| handle_dump(cmd + 5, a0); |
| return; |
| } |
| |
| if(startswith(cmd,"loadaddr:")){ |
| handle_query_load_address(a0); |
| return; |
| } |
| |
| jtag_fail("unknown command"); |
| } |
| |
| void nandwrite_init(void) |
| { |
| page_size = flash_page_size(); |
| page_mask = page_size - 1; |
| jtag_cmd_loop(handle_command); |
| } |
| |
| |