mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
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1117 lines
28 KiB
C
1117 lines
28 KiB
C
/*
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* Copyright (c) 2023, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Authors: xuan.wen <xuan.wen@artinchip.com>
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*/
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#include <rtconfig.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <aic_core.h>
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#include <env.h>
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#ifndef KERNEL_BAREMETAL
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#include <rtthread.h>
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#include <rtdevice.h>
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#ifdef AIC_SPINOR_DRV
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#include <fal.h>
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#endif
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#else
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#include <console.h>
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#if (defined (AIC_SPINOR_DRV) || defined (AIC_SPINAND_DRV))
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#include <mtd.h>
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#endif
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#endif
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#define O_RDONLY (00000000)
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#define O_WRONLY (00000001)
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#define O_RDWR (00000002)
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"upgrade_available=0\0" \
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"bootlimit=5\0" \
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"bootcount=0\0" \
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"bootdelay=0\0" \
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"osAB_next=A\0" \
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"osAB_now=A\0"
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static char default_environment[] = {
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#ifdef CONFIG_EXTRA_ENV_SETTINGS
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CONFIG_EXTRA_ENV_SETTINGS
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#endif
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"\0"
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};
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#ifdef AIC_SYS_REDUNDAND_ENVIRONMENT
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static int have_redund_env = 1;
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#else
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static int have_redund_env = 0;
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#endif
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static unsigned char active_flag = 1;
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/* obsolete_flag must be 0 to efficiently set it on NOR flash without erasing */
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static unsigned char obsolete_flag = 0;
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static unsigned long usable_envsize;
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static int dev_current;
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static int bd = 0; //boot device
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struct env_image_single {
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uint32_t crc; /* CRC32 over data bytes */
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char data[];
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};
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struct env_image_redundant {
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uint32_t crc; /* CRC32 over data bytes */
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unsigned char flags; /* active or obsolete */
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char data[];
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};
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enum flag_scheme {
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FLAG_NONE,
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FLAG_BOOLEAN,
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FLAG_INCREMENTAL,
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};
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struct environment {
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void *image;
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uint32_t *crc;
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unsigned char *flags;
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char *data;
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enum flag_scheme flag_scheme;
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};
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static struct environment environment = {
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.flag_scheme = FLAG_NONE,
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};
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static int flash_io(int mode);
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#define SET_ENV_HELP \
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"Usage: fw_setenv name value\n" \
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"Modify variables in U-Boot environment\n" \
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"Need to run cmd fw_setbd in advance\n" \
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"Examples:\n" \
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"fw_setenv foo bar set variable foo equal bar\n" \
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"fw_setenv foo clear variable foo\n"
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#ifndef KERNEL_BAREMETAL
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static aicos_mutex_t lock_env = NULL;
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static int env_lock(void)
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{
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if (aicos_mutex_take(lock_env, AICOS_WAIT_FOREVER) == 0)
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return 0;
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else
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return -1;
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}
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static int env_unlock(void)
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{
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if (lock_env != NULL) {
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aicos_mutex_give(lock_env);
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return 0;
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} else {
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return -1;
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}
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}
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static int env_lock_init(void)
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{
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if (lock_env == NULL) {
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lock_env = aicos_mutex_create();
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if (lock_env == NULL)
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return -1;
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}
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return 0;
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}
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#endif
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static const uint32_t crc32_table[256] = {
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0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
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0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
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0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
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0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
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0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
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0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
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0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
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0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
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0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
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0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
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0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
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0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
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0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
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0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
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0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
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0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
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0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
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0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
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0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
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0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
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0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
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0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
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0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
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0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
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0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
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0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
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0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
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0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
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0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
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0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
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0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
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0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
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0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
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0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
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0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
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0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
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0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
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0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
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0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
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0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
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0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
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0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
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0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
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};
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static uint32_t crc32_0(const uint8_t *data, uint32_t length)
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{
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register uint32_t crc = 0xFFFFFFFF;
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while (length--) {
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crc = ((crc >> 8) & 0x00FFFFFF) ^
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crc32_table[(crc ^ *data++) & 0x000000FF];
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}
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return (crc ^ 0xFFFFFFFF);
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}
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static uint32_t crc32(uint32_t crc, const uint8_t *buf, uint32_t len)
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{
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return crc32_0(buf, len);
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}
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/*
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* s1 is either a simple 'name', or a 'name=value' pair.
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* s2 is a 'name=value' pair.
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* If the names match, return the value of s2, else NULL.
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*/
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static char *envmatch(char *s1, char *s2)
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{
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if (s1 == NULL || s2 == NULL)
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return NULL;
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while (*s1 == *s2++)
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if (*s1++ == '=')
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return s2;
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if (*s1 == '\0' && *(s2 - 1) == '=')
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return s2;
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return NULL;
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}
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/**
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* Search the environment for a variable.
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* Return the value, if found, or NULL, if not found.
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*/
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char *fw_getenv(char *name)
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{
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char *env, *nxt;
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for (env = environment.data; *env; env = nxt + 1) {
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char *val;
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for (nxt = env; *nxt; ++nxt) {
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if (nxt >= &environment.data[usable_envsize]) {
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pr_err("Environment not terminated\n");
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return NULL;
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}
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}
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val = envmatch(name, env);
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if (!val)
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continue;
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return val;
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}
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return NULL;
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}
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/*
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* Set/Clear a single variable in the environment.
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* This is called in sequence to update the environment
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* in RAM without updating the copy in flash after each set
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*/
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int fw_env_write(char *name, char *value)
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{
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int len;
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char *env, *nxt;
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char *oldval = NULL;
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int deleting, creating, overwriting;
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/*
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* search if variable with this name already exists
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*/
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for (nxt = env = environment.data; *env; env = nxt + 1) {
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for (nxt = env; *nxt; ++nxt) {
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if (nxt >= &environment.data[usable_envsize]) {
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pr_err("Environment not terminated\n");
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/* errno = EINVAL; */
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return -1;
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}
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}
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oldval = envmatch(name, env);
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if (oldval)
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break;
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}
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deleting = (oldval && !(value && strlen(value)));
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creating = (!oldval && (value && strlen(value)));
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overwriting = (oldval && (value && strlen(value)));
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if (deleting) {
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printf("Env: delting\n");
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} else if (overwriting) {
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pr_debug("Env: overwriting\n");
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} else if (creating) {
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printf("Env: creating\n");
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} else {
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printf("Env: nothing\n");
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return 0;
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}
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if (deleting || overwriting) {
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if (*++nxt == '\0') {
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*env = '\0';
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} else {
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for (;;) {
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*env = *nxt++;
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if ((*env == '\0') && (*nxt == '\0'))
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break;
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++env;
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}
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}
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*++env = '\0';
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}
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/* Delete only ? */
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if (!value || !strlen(value))
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return 0;
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/*
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* Append new definition at the end
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*/
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for (env = environment.data; *env || *(env + 1); ++env)
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continue;
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if (env > environment.data)
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++env;
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/*
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* Overflow when:
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* "name" + "=" + "val" +"\0\0" > AIC_ENV_SIZE - (env-environment)
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*/
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len = strlen(name) + 2;
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/* add '=' for first arg, ' ' for all others */
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len += strlen(value) + 1;
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if (len > (&environment.data[usable_envsize] - env)) {
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pr_err("Environment overflow, \"%s\" deleted\n", name);
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return -1;
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}
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while ((*env = *name++) != '\0')
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env++;
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*env = '=';
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while ((*++env = *value++) != '\0')
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continue;
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/* end is marked with double '\0' */
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*++env = '\0';
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return 0;
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}
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int fw_env_flush(void)
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{
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/*
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* Update CRC
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*/
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*environment.crc = crc32(0, (uint8_t *)environment.data, usable_envsize);
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/* write environment back to flash */
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if (flash_io(O_RDWR)) {
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pr_err("Can't write fw_env to flash\n");
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return -1;
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}
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return 0;
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}
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#ifdef AIC_SPINOR_DRV
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#ifndef KERNEL_BAREMETAL
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static int rtt_spinor_load_env_simple(void *buf, size_t size)
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{
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const struct fal_partition *env_current;
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if (dev_current == 0) {
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env_current = fal_partition_find(AIC_ENV_PART_NAME);
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} else if (dev_current == 1) {
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env_current = fal_partition_find(AIC_ENV_REDUNDAND_PART_NAME);
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} else {
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pr_err("Invalid dev_current:%d\n", dev_current);
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return -1;
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}
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if (env_current == RT_NULL) {
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pr_err("Not found dev_current:%d\n", dev_current);
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return -1;
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}
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if (fal_partition_read(env_current, 0, buf, size) != size) {
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pr_err("Fal read env fail\n");
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return -1;
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}
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return 0;
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}
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static int rtt_spinor_save_env_simple(void *buf, size_t size)
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{
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const struct fal_partition *env_current;
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if (dev_current == 0) {
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env_current = fal_partition_find(AIC_ENV_REDUNDAND_PART_NAME);
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} else if (dev_current == 1) {
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env_current = fal_partition_find(AIC_ENV_PART_NAME);
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} else {
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pr_err("Invalid dev_current:%d\n", dev_current);
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return -1;
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}
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if (env_current == RT_NULL) {
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pr_err("Not found dev_current:%d\n", dev_current);
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return -1;
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}
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if (fal_partition_erase(env_current, 0, AIC_ENV_SIZE) < 0) {
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pr_err("Fal erase env fail\n");
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return -1;
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}
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if (fal_partition_write(env_current, 0, buf, size) != size) {
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pr_err("Fal write env fail\n");
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return -1;
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}
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return 0;
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}
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#else
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static int bar_spinor_load_env_simple(void *buf, size_t size)
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{
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struct mtd_dev *env_current;
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if (dev_current == 0) {
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env_current = mtd_get_device(AIC_ENV_PART_NAME);
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} else if (dev_current == 1) {
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env_current = mtd_get_device(AIC_ENV_REDUNDAND_PART_NAME);
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} else {
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pr_err("Invalid dev_current:%d\n", dev_current);
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return -1;
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}
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if (env_current == NULL) {
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pr_err("Not found dev_current:%d\n", dev_current);
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return -1;
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}
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if (mtd_read(env_current, 0, buf, size) < 0) {
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pr_err("Read env fail\n");
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return -1;
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}
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return 0;
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}
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static int bar_spinor_save_env_simple(void *buf, size_t size)
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{
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struct mtd_dev *env_current;
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if (dev_current == 0) {
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env_current = mtd_get_device(AIC_ENV_REDUNDAND_PART_NAME);
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} else if (dev_current == 1) {
|
|
env_current = mtd_get_device(AIC_ENV_PART_NAME);
|
|
} else {
|
|
pr_err("Invalid dev_current:%d\n", dev_current);
|
|
return -1;
|
|
}
|
|
|
|
if (env_current == NULL) {
|
|
pr_err("Not found dev_current:%d\n", dev_current);
|
|
return -1;
|
|
}
|
|
|
|
if (mtd_erase(env_current, 0, AIC_ENV_SIZE)) {
|
|
pr_err("Mtd erase env fail\n");
|
|
return -1;
|
|
}
|
|
|
|
if (mtd_write(env_current, 0, buf, size)) {
|
|
pr_err("Mtd write env fail\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef AIC_SPINAND_DRV
|
|
#ifndef KERNEL_BAREMETAL
|
|
static int mtd_is_block_aligned(rt_off_t page, rt_uint32_t ppb)
|
|
{
|
|
if (page & (ppb - 1))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int rtt_spinand_load_env_simple(void *buf, size_t size)
|
|
{
|
|
struct rt_mtd_nand_device *mtd;
|
|
rt_device_t dev;
|
|
rt_err_t ret;
|
|
rt_off_t offset = 0;
|
|
rt_uint32_t page_id = 0, blk = 0, remain = 0;
|
|
|
|
if (dev_current == 0) {
|
|
dev = rt_device_find(AIC_ENV_PART_NAME);
|
|
} else if (dev_current == 1) {
|
|
dev = rt_device_find(AIC_ENV_REDUNDAND_PART_NAME);
|
|
} else {
|
|
pr_err("Invalid dev_current:%d\n", dev_current);
|
|
return -RT_ERROR;
|
|
}
|
|
|
|
if (dev == RT_NULL) {
|
|
pr_err("Not found dev_current:%d\n", dev_current);
|
|
return -RT_ERROR;
|
|
}
|
|
|
|
ret = rt_device_open(dev, RT_DEVICE_OFLAG_RDWR);
|
|
if (ret) {
|
|
pr_err("Open MTD env failed.!\n");
|
|
return ret;
|
|
}
|
|
|
|
mtd = (struct rt_mtd_nand_device *)dev;
|
|
remain = size;
|
|
|
|
while (remain) {
|
|
page_id = offset / mtd->page_size;
|
|
|
|
if (page_id > (mtd->block_total * mtd->pages_per_block)) {
|
|
pr_err("All blocks in the part is bad!\n");
|
|
ret = -RT_ERROR;
|
|
goto rtt_spinand_load_env_simple_exit;
|
|
}
|
|
|
|
blk = page_id / mtd->pages_per_block;
|
|
|
|
if (mtd_is_block_aligned(page_id, mtd->pages_per_block) &&
|
|
rt_mtd_nand_check_block(mtd, blk) != RT_EOK) {
|
|
pr_err("Block is bad, skip it.\n");
|
|
offset += mtd->pages_per_block * mtd->page_size;
|
|
continue;
|
|
}
|
|
|
|
ret = rt_mtd_nand_read(mtd, page_id, buf, mtd->page_size, RT_NULL, 0);
|
|
if (ret) {
|
|
pr_err("Failed to read page data from NAND.\n");
|
|
ret = -RT_ERROR;
|
|
goto rtt_spinand_load_env_simple_exit;
|
|
}
|
|
|
|
buf += mtd->page_size;
|
|
offset += mtd->page_size;
|
|
if (remain >= mtd->page_size)
|
|
remain -= mtd->page_size;
|
|
else
|
|
remain = 0;
|
|
}
|
|
|
|
rtt_spinand_load_env_simple_exit:
|
|
rt_device_close(dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rtt_spinand_save_env_simple(void *buf, size_t size)
|
|
{
|
|
struct rt_mtd_nand_device *mtd;
|
|
rt_device_t dev;
|
|
rt_err_t ret = 0;
|
|
rt_off_t offset = 0;
|
|
rt_uint32_t page_id = 0, blk = 0, remain = 0, goodblk = 0;
|
|
|
|
if (dev_current == 0) {
|
|
dev = rt_device_find(AIC_ENV_REDUNDAND_PART_NAME);
|
|
} else if (dev_current == 1) {
|
|
dev = rt_device_find(AIC_ENV_PART_NAME);
|
|
} else {
|
|
pr_err("Invalid dev_current:%d\n", dev_current);
|
|
return -RT_ERROR;
|
|
}
|
|
|
|
if (dev == RT_NULL) {
|
|
pr_err("Not found dev_current:%d\n", dev_current);
|
|
return -RT_ERROR;
|
|
}
|
|
|
|
ret = rt_device_open(dev, RT_DEVICE_OFLAG_RDWR);
|
|
if (ret) {
|
|
pr_err("Open MTD env failed.!\n");
|
|
return ret;
|
|
}
|
|
|
|
mtd = (struct rt_mtd_nand_device *)dev;
|
|
remain = size;
|
|
|
|
while (!goodblk) {
|
|
page_id = offset / mtd->page_size;
|
|
|
|
if (page_id > (mtd->block_total * mtd->pages_per_block)) {
|
|
pr_err("All blocks in the part is bad!\n");
|
|
ret = -RT_ERROR;
|
|
goto rtt_spinand_save_env_simple;
|
|
}
|
|
|
|
blk = page_id / mtd->pages_per_block;
|
|
|
|
if (rt_mtd_nand_check_block(mtd, blk) != RT_EOK) {
|
|
pr_err("Block is bad, skip it.\n");
|
|
offset += mtd->pages_per_block * mtd->page_size;
|
|
continue;
|
|
} else {
|
|
rt_mtd_nand_erase_block(mtd, blk);
|
|
goodblk = true;
|
|
}
|
|
}
|
|
|
|
while (remain) {
|
|
page_id = offset / mtd->page_size;
|
|
|
|
ret = rt_mtd_nand_write(mtd, page_id, buf, mtd->page_size, RT_NULL, 0);
|
|
if (ret) {
|
|
pr_err("Failed to write page data to NAND.\n");
|
|
ret = -RT_ERROR;
|
|
goto rtt_spinand_save_env_simple;
|
|
}
|
|
|
|
buf += mtd->page_size;
|
|
offset += mtd->page_size;
|
|
if (remain >= mtd->page_size)
|
|
remain -= mtd->page_size;
|
|
else
|
|
remain = 0;
|
|
}
|
|
|
|
rtt_spinand_save_env_simple:
|
|
rt_device_close(dev);
|
|
return ret;
|
|
}
|
|
#else
|
|
static int bar_spinand_load_env_simple(void *buf, size_t size)
|
|
{
|
|
struct mtd_dev *env_current;
|
|
unsigned long offset = 0;
|
|
|
|
if (dev_current == 0) {
|
|
env_current = mtd_get_device(AIC_ENV_PART_NAME);
|
|
} else if (dev_current == 1) {
|
|
env_current = mtd_get_device(AIC_ENV_REDUNDAND_PART_NAME);
|
|
} else {
|
|
pr_err("Invalid dev_current:%d\n", dev_current);
|
|
return -1;
|
|
}
|
|
|
|
if (mtd_block_isbad(env_current, offset)) {
|
|
pr_err("Block is bad, skip it.\n");
|
|
offset += env_current->erasesize;
|
|
if (offset >= env_current->size) {
|
|
pr_err("All blocks in the part is bad!\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (mtd_read(env_current, offset, buf, size) < 0) {
|
|
pr_err("Read env fail\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bar_spinand_save_env_simple(void *buf, size_t size)
|
|
{
|
|
struct mtd_dev *env_current;
|
|
unsigned long offset = 0;
|
|
|
|
if (dev_current == 0) {
|
|
env_current = mtd_get_device(AIC_ENV_REDUNDAND_PART_NAME);
|
|
} else if (dev_current == 1) {
|
|
env_current = mtd_get_device(AIC_ENV_PART_NAME);
|
|
} else {
|
|
pr_err("Invalid dev_current:%d\n", dev_current);
|
|
return -1;
|
|
}
|
|
|
|
if (mtd_block_isbad(env_current, offset)) {
|
|
pr_err("Block is bad, skip it.\n");
|
|
offset += env_current->erasesize;
|
|
if (offset >= env_current->size) {
|
|
pr_err("All blocks in the part is bad!\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (mtd_erase(env_current, offset, AIC_ENV_SIZE)) {
|
|
pr_err("Mtd erase env fail\n");
|
|
return -1;
|
|
}
|
|
|
|
if (mtd_write(env_current, offset, buf, size)) {
|
|
pr_err("Mtd write env fail\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
static int flash_env_read(void *buf, size_t size)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (bd) {
|
|
#ifdef AIC_SPINOR_DRV
|
|
case BD_SPINOR:
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = rtt_spinor_load_env_simple(buf, size);
|
|
#else
|
|
ret = bar_spinor_load_env_simple(buf, size);
|
|
#endif
|
|
break;
|
|
#endif
|
|
#ifdef AIC_SPINAND_DRV
|
|
case BD_SPINAND:
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = rtt_spinand_load_env_simple(buf, size);
|
|
#else
|
|
ret = bar_spinand_load_env_simple(buf, size);
|
|
#endif
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
#ifdef AIC_ENV_DEBUG
|
|
int i = 0, j = 0;
|
|
char *str;
|
|
|
|
str = buf;
|
|
|
|
for (i = 0; i < size; i++) {
|
|
printf("0x%x ", str[i]);
|
|
j++;
|
|
if (j >= 16) {
|
|
printf("\n");
|
|
j = 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int flash_env_write(void *buf, size_t size)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (environment.flag_scheme) {
|
|
case FLAG_NONE:
|
|
break;
|
|
case FLAG_INCREMENTAL:
|
|
(*environment.flags)++;
|
|
break;
|
|
case FLAG_BOOLEAN:
|
|
*environment.flags = active_flag;
|
|
break;
|
|
default:
|
|
pr_info("Unimplemented flash scheme %d\n", environment.flag_scheme);
|
|
return -1;
|
|
}
|
|
|
|
switch (bd) {
|
|
#ifdef AIC_SPINOR_DRV
|
|
case BD_SPINOR:
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = rtt_spinor_save_env_simple(buf, size);
|
|
#else
|
|
ret = bar_spinor_save_env_simple(buf, size);
|
|
#endif
|
|
break;
|
|
#endif
|
|
#ifdef AIC_SPINAND_DRV
|
|
case BD_SPINAND:
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = rtt_spinand_save_env_simple(buf, size);
|
|
#else
|
|
ret = bar_spinand_save_env_simple(buf, size);
|
|
#endif
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int flash_io(int mode)
|
|
{
|
|
void *buf;
|
|
size_t size;
|
|
int ret = 0;
|
|
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = env_lock();
|
|
if (ret) {
|
|
pr_err("Lock env failed\n");
|
|
goto exit_flash_io;
|
|
}
|
|
#endif
|
|
|
|
if (mode == O_RDWR) {
|
|
buf = environment.image;
|
|
size = AIC_ENV_SIZE;
|
|
ret = flash_env_write(buf, size);
|
|
} else {
|
|
buf = environment.image;
|
|
size = AIC_ENV_SIZE;
|
|
ret = flash_env_read(buf, size);
|
|
}
|
|
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = env_unlock();
|
|
if (ret) {
|
|
ret = -1;
|
|
pr_err("Unlock env failed\n");
|
|
}
|
|
|
|
exit_flash_io:
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Prevent confusion if running from erased flash memory
|
|
*/
|
|
int fw_env_open(void)
|
|
{
|
|
uint32_t crc0, crc0_ok;
|
|
unsigned char flag0;
|
|
void *addr0 = NULL;
|
|
|
|
int crc1, crc1_ok;
|
|
unsigned char flag1;
|
|
void *addr1 = NULL;
|
|
|
|
int ret;
|
|
|
|
struct env_image_single *single;
|
|
struct env_image_redundant *redundant;
|
|
|
|
if (!bd) {
|
|
bd = aic_get_boot_device();
|
|
|
|
if ((bd <= BD_NONE) || (bd >= BD_SDFAT32)) {
|
|
pr_err("Parameter bd is not right\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
#ifndef KERNEL_BAREMETAL
|
|
ret = env_lock_init();
|
|
if (ret) {
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
addr0 = aicos_malloc_align(0, AIC_ENV_SIZE, CACHE_LINE_SIZE);
|
|
if (addr0 == NULL) {
|
|
pr_err("Not enough memory for environment (%d bytes)\n", AIC_ENV_SIZE);
|
|
ret = -1;
|
|
goto open_cleanup;
|
|
}
|
|
|
|
/* read environment from FLASH to local buffer */
|
|
environment.image = addr0;
|
|
|
|
if (have_redund_env) {
|
|
redundant = addr0;
|
|
environment.crc = &redundant->crc;
|
|
environment.flags = &redundant->flags;
|
|
environment.data = redundant->data;
|
|
} else {
|
|
single = addr0;
|
|
environment.crc = &single->crc;
|
|
environment.flags = NULL;
|
|
environment.data = single->data;
|
|
}
|
|
|
|
usable_envsize = AIC_ENV_SIZE - sizeof(uint32_t);
|
|
if (have_redund_env)
|
|
usable_envsize -= sizeof(char);
|
|
|
|
dev_current = 0;
|
|
if (flash_io(O_RDONLY)) {
|
|
ret = -EIO;
|
|
goto open_cleanup;
|
|
}
|
|
crc0 = crc32(0, (uint8_t *)environment.data, usable_envsize);
|
|
|
|
#ifdef AIC_ENV_DEBUG
|
|
printf("crc0 = 0x%x,environment.crc = 0x%x\n", (unsigned int)crc0,
|
|
(unsigned int)*environment.crc);
|
|
#endif
|
|
crc0_ok = (crc0 == *environment.crc);
|
|
|
|
if (!have_redund_env) {
|
|
if (!crc0_ok) {
|
|
pr_err("Bad CRC, using default environment\n");
|
|
memcpy(environment.data, default_environment,
|
|
sizeof(default_environment));
|
|
}
|
|
} else {
|
|
flag0 = *environment.flags;
|
|
|
|
dev_current = 1;
|
|
addr1 = aicos_malloc_align(0, AIC_ENV_SIZE, CACHE_LINE_SIZE);
|
|
if (addr1 == NULL) {
|
|
pr_err("Not enough memory for environment (%d bytes)\n",
|
|
AIC_ENV_SIZE);
|
|
ret = -ENOMEM;
|
|
goto open_cleanup;
|
|
}
|
|
redundant = addr1;
|
|
|
|
/*
|
|
* have to set environment.image for flash_read(), careful -
|
|
* other pointers in environment still point inside addr0
|
|
*/
|
|
environment.image = addr1;
|
|
if (flash_io(O_RDONLY)) {
|
|
ret = -EIO;
|
|
goto open_cleanup;
|
|
}
|
|
|
|
/* Check flag scheme compatibility */
|
|
/* uboot default is FLAG_INCREMENTAL */
|
|
environment.flag_scheme = FLAG_INCREMENTAL,
|
|
|
|
crc1 = crc32(0, (uint8_t *)redundant->data, usable_envsize);
|
|
#ifdef AIC_ENV_DEBUG
|
|
printf("crc1 = 0x%x,redundant->crc = 0x%x\n", (unsigned int)crc1,
|
|
(unsigned int)redundant->crc);
|
|
#endif
|
|
crc1_ok = (crc1 == redundant->crc);
|
|
flag1 = redundant->flags;
|
|
|
|
if (crc0_ok && !crc1_ok) {
|
|
dev_current = 0;
|
|
} else if (!crc0_ok && crc1_ok) {
|
|
dev_current = 1;
|
|
} else if (!crc0_ok && !crc1_ok) {
|
|
pr_err("Warning: Bad CRC, using default environment\n");
|
|
memcpy(environment.data, default_environment,
|
|
sizeof(default_environment));
|
|
dev_current = 0;
|
|
} else {
|
|
switch (environment.flag_scheme) {
|
|
case FLAG_BOOLEAN:
|
|
if (flag0 == active_flag && flag1 == obsolete_flag) {
|
|
dev_current = 0;
|
|
} else if (flag0 == obsolete_flag && flag1 == active_flag) {
|
|
dev_current = 1;
|
|
} else if (flag0 == flag1) {
|
|
dev_current = 0;
|
|
} else if (flag0 == 0xFF) {
|
|
dev_current = 0;
|
|
} else if (flag1 == 0xFF) {
|
|
dev_current = 1;
|
|
} else {
|
|
dev_current = 0;
|
|
}
|
|
break;
|
|
case FLAG_INCREMENTAL:
|
|
if (flag0 == 255 && flag1 == 0)
|
|
dev_current = 1;
|
|
else if ((flag1 == 255 && flag0 == 0) || flag0 >= flag1)
|
|
dev_current = 0;
|
|
else /* flag1 > flag0 */
|
|
dev_current = 1;
|
|
break;
|
|
default:
|
|
pr_info("Unknown flag scheme %d\n",
|
|
environment.flag_scheme);
|
|
ret = -1;
|
|
goto open_cleanup;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are reading, we don't need the flag and the CRC any
|
|
* more, if we are writing, we will re-calculate CRC and update
|
|
* flags before writing out
|
|
*/
|
|
if (dev_current) {
|
|
environment.image = addr1;
|
|
environment.crc = &redundant->crc;
|
|
environment.flags = &redundant->flags;
|
|
environment.data = redundant->data;
|
|
aicos_free_align(0, addr0);
|
|
} else {
|
|
environment.image = addr0;
|
|
/* Other pointers are already set */
|
|
aicos_free_align(0, addr1);
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
open_cleanup:
|
|
if (addr0) {
|
|
aicos_free_align(0, addr0);
|
|
}
|
|
|
|
if (addr1) {
|
|
aicos_free_align(0, addr1);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Simply free allocated buffer with environment
|
|
*/
|
|
int fw_env_close(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (environment.image) {
|
|
aicos_free_align(0, environment.image);
|
|
}
|
|
|
|
environment.image = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static int cmd_fw_printenv(int argc, char **argv)
|
|
{
|
|
int i, ret = 0;
|
|
|
|
if (fw_env_open()) {
|
|
pr_err("Open env failed\n");
|
|
return -1;
|
|
}
|
|
|
|
if (argc == 1) { /* Print all env variables */
|
|
char *env, *nxt;
|
|
for (env = environment.data; *env; env = nxt + 1) {
|
|
for (nxt = env; *nxt; ++nxt) {
|
|
if (nxt >= &environment.data[usable_envsize]) {
|
|
pr_err("Environment not terminated\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
printf("%s\n", env);
|
|
}
|
|
fw_env_close();
|
|
return 0;
|
|
}
|
|
|
|
for (i = 1; i < argc; ++i) { /* print a subset of env variables */
|
|
char *name = argv[i];
|
|
char *val = NULL;
|
|
|
|
val = fw_getenv(name);
|
|
if (!val) {
|
|
pr_err("\"%s\" not defined\n", name);
|
|
ret = -1;
|
|
continue;
|
|
}
|
|
|
|
pr_err("%s=%s\n", name, val);
|
|
}
|
|
|
|
fw_env_close();
|
|
return ret;
|
|
}
|
|
|
|
#ifndef KERNEL_BAREMETAL
|
|
MSH_CMD_EXPORT_ALIAS(cmd_fw_printenv, fw_printenv, Print env);
|
|
#else
|
|
CONSOLE_CMD(fw_printenv, cmd_fw_printenv, "Print env");
|
|
#endif
|
|
|
|
static int cmd_fw_setenv(int argc, char **argv)
|
|
{
|
|
int ret = 0;
|
|
|
|
if ((argc != 3) && (argc != 2)) {
|
|
printf(SET_ENV_HELP);
|
|
return -1;
|
|
}
|
|
|
|
if (fw_env_open()) {
|
|
ret = -1;
|
|
goto fw_setenv_err;
|
|
}
|
|
|
|
ret = fw_env_write(argv[1], argv[2]);
|
|
if (ret) {
|
|
pr_err("Env write fail\n");
|
|
goto fw_setenv_err;
|
|
}
|
|
|
|
fw_env_flush();
|
|
|
|
fw_setenv_err:
|
|
fw_env_close();
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifndef KERNEL_BAREMETAL
|
|
MSH_CMD_EXPORT_ALIAS(cmd_fw_setenv, fw_setenv, Set env);
|
|
#else
|
|
CONSOLE_CMD(fw_setenv, cmd_fw_setenv, "Set env");
|
|
#endif
|