From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/u-boot/common/flash.c | 230 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 230 insertions(+) create mode 100644 qemu/roms/u-boot/common/flash.c (limited to 'qemu/roms/u-boot/common/flash.c') diff --git a/qemu/roms/u-boot/common/flash.c b/qemu/roms/u-boot/common/flash.c new file mode 100644 index 000000000..f1440c2c1 --- /dev/null +++ b/qemu/roms/u-boot/common/flash.c @@ -0,0 +1,230 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* #define DEBUG */ + +#include +#include + +#if !defined(CONFIG_SYS_NO_FLASH) +#include + +extern flash_info_t flash_info[]; /* info for FLASH chips */ + +/*----------------------------------------------------------------------- + * Functions + */ + +/*----------------------------------------------------------------------- + * Set protection status for monitor sectors + * + * The monitor is always located in the _first_ Flash bank. + * If necessary you have to map the second bank at lower addresses. + */ +void +flash_protect (int flag, ulong from, ulong to, flash_info_t *info) +{ + ulong b_end; + short s_end; + int i; + + /* Do nothing if input data is bad. */ + if (!info || info->sector_count == 0 || info->size == 0 || to < from) { + return; + } + + s_end = info->sector_count - 1; /* index of last sector */ + b_end = info->start[0] + info->size - 1; /* bank end address */ + + debug ("flash_protect %s: from 0x%08lX to 0x%08lX\n", + (flag & FLAG_PROTECT_SET) ? "ON" : + (flag & FLAG_PROTECT_CLEAR) ? "OFF" : "???", + from, to); + + /* There is nothing to do if we have no data about the flash + * or the protect range and flash range don't overlap. + */ + if (info->flash_id == FLASH_UNKNOWN || + to < info->start[0] || from > b_end) { + return; + } + + for (i=0; isector_count; ++i) { + ulong end; /* last address in current sect */ + + end = (i == s_end) ? b_end : info->start[i + 1] - 1; + + /* Update protection if any part of the sector + * is in the specified range. + */ + if (from <= end && to >= info->start[i]) { + if (flag & FLAG_PROTECT_CLEAR) { +#if defined(CONFIG_SYS_FLASH_PROTECTION) + flash_real_protect(info, i, 0); +#else + info->protect[i] = 0; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + debug ("protect off %d\n", i); + } + else if (flag & FLAG_PROTECT_SET) { +#if defined(CONFIG_SYS_FLASH_PROTECTION) + flash_real_protect(info, i, 1); +#else + info->protect[i] = 1; +#endif /* CONFIG_SYS_FLASH_PROTECTION */ + debug ("protect on %d\n", i); + } + } + } +} + +/*----------------------------------------------------------------------- + */ + +flash_info_t * +addr2info (ulong addr) +{ +#ifndef CONFIG_SPD823TS + flash_info_t *info; + int i; + + for (i=0, info = &flash_info[0]; iflash_id != FLASH_UNKNOWN && + addr >= info->start[0] && + /* WARNING - The '- 1' is needed if the flash + * is at the end of the address space, since + * info->start[0] + info->size wraps back to 0. + * Please don't change this unless you understand this. + */ + addr <= info->start[0] + info->size - 1) { + return (info); + } + } +#endif /* CONFIG_SPD823TS */ + + return (NULL); +} + +/*----------------------------------------------------------------------- + * Copy memory to flash. + * Make sure all target addresses are within Flash bounds, + * and no protected sectors are hit. + * Returns: + * ERR_OK 0 - OK + * ERR_TIMOUT 1 - write timeout + * ERR_NOT_ERASED 2 - Flash not erased + * ERR_PROTECTED 4 - target range includes protected sectors + * ERR_INVAL 8 - target address not in Flash memory + * ERR_ALIGN 16 - target address not aligned on boundary + * (only some targets require alignment) + */ +int +flash_write (char *src, ulong addr, ulong cnt) +{ +#ifdef CONFIG_SPD823TS + return (ERR_TIMOUT); /* any other error codes are possible as well */ +#else + int i; + ulong end = addr + cnt - 1; + flash_info_t *info_first = addr2info (addr); + flash_info_t *info_last = addr2info (end ); + flash_info_t *info; + __maybe_unused char *src_orig = src; + __maybe_unused char *addr_orig = (char *)addr; + __maybe_unused ulong cnt_orig = cnt; + + if (cnt == 0) { + return (ERR_OK); + } + + if (!info_first || !info_last) { + return (ERR_INVAL); + } + + for (info = info_first; info <= info_last; ++info) { + ulong b_end = info->start[0] + info->size; /* bank end addr */ + short s_end = info->sector_count - 1; + for (i=0; isector_count; ++i) { + ulong e_addr = (i == s_end) ? b_end : info->start[i + 1]; + + if ((end >= info->start[i]) && (addr < e_addr) && + (info->protect[i] != 0) ) { + return (ERR_PROTECTED); + } + } + } + + /* finally write data to flash */ + for (info = info_first; info <= info_last && cnt>0; ++info) { + ulong len; + + len = info->start[0] + info->size - addr; + if (len > cnt) + len = cnt; + if ((i = write_buff(info, (uchar *)src, addr, len)) != 0) { + return (i); + } + cnt -= len; + addr += len; + src += len; + } + +#if defined(CONFIG_FLASH_VERIFY) + if (memcmp(src_orig, addr_orig, cnt_orig)) { + printf("\nVerify failed!\n"); + return ERR_PROG_ERROR; + } +#endif /* CONFIG_SYS_FLASH_VERIFY_AFTER_WRITE */ + + return (ERR_OK); +#endif /* CONFIG_SPD823TS */ +} + +/*----------------------------------------------------------------------- + */ + +void flash_perror (int err) +{ + switch (err) { + case ERR_OK: + break; + case ERR_TIMOUT: + puts ("Timeout writing to Flash\n"); + break; + case ERR_NOT_ERASED: + puts ("Flash not Erased\n"); + break; + case ERR_PROTECTED: + puts ("Can't write to protected Flash sectors\n"); + break; + case ERR_INVAL: + puts ("Outside available Flash\n"); + break; + case ERR_ALIGN: + puts ("Start and/or end address not on sector boundary\n"); + break; + case ERR_UNKNOWN_FLASH_VENDOR: + puts ("Unknown Vendor of Flash\n"); + break; + case ERR_UNKNOWN_FLASH_TYPE: + puts ("Unknown Type of Flash\n"); + break; + case ERR_PROG_ERROR: + puts ("General Flash Programming Error\n"); + break; + case ERR_ABORTED: + puts("Flash Programming Aborted\n"); + break; + default: + printf ("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err); + break; + } +} + +/*----------------------------------------------------------------------- + */ +#endif /* !CONFIG_SYS_NO_FLASH */ -- cgit 1.2.3-korg