diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/common/env_eeprom.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/common/env_eeprom.c')
-rw-r--r-- | qemu/roms/u-boot/common/env_eeprom.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/qemu/roms/u-boot/common/env_eeprom.c b/qemu/roms/u-boot/common/env_eeprom.c deleted file mode 100644 index 490ac731b..000000000 --- a/qemu/roms/u-boot/common/env_eeprom.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * (C) Copyright 2000-2010 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Andreas Heppel <aheppel@sysgo.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <environment.h> -#include <linux/stddef.h> -#if defined(CONFIG_I2C_ENV_EEPROM_BUS) -#include <i2c.h> -#endif -#include <search.h> -#include <errno.h> -#include <linux/compiler.h> /* for BUG_ON */ - -DECLARE_GLOBAL_DATA_PTR; - -env_t *env_ptr; - -char *env_name_spec = "EEPROM"; - -static int eeprom_bus_read(unsigned dev_addr, unsigned offset, - uchar *buffer, unsigned cnt) -{ - int rcode; -#if defined(CONFIG_I2C_ENV_EEPROM_BUS) - int old_bus = i2c_get_bus_num(); - - if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS) - i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS); -#endif - - rcode = eeprom_read(dev_addr, offset, buffer, cnt); - -#if defined(CONFIG_I2C_ENV_EEPROM_BUS) - i2c_set_bus_num(old_bus); -#endif - - return rcode; -} - -static int eeprom_bus_write(unsigned dev_addr, unsigned offset, - uchar *buffer, unsigned cnt) -{ - int rcode; -#if defined(CONFIG_I2C_ENV_EEPROM_BUS) - int old_bus = i2c_get_bus_num(); - - if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS) - i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS); -#endif - - rcode = eeprom_write(dev_addr, offset, buffer, cnt); - -#if defined(CONFIG_I2C_ENV_EEPROM_BUS) - i2c_set_bus_num(old_bus); -#endif - - return rcode; -} - -uchar env_get_char_spec(int index) -{ - uchar c; - unsigned int off = CONFIG_ENV_OFFSET; - -#ifdef CONFIG_ENV_OFFSET_REDUND - if (gd->env_valid == 2) - off = CONFIG_ENV_OFFSET_REDUND; -#endif - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - off + index + offsetof(env_t, data), &c, 1); - - return c; -} - -void env_relocate_spec(void) -{ - char buf[CONFIG_ENV_SIZE]; - unsigned int off = CONFIG_ENV_OFFSET; - -#ifdef CONFIG_ENV_OFFSET_REDUND - if (gd->env_valid == 2) - off = CONFIG_ENV_OFFSET_REDUND; -#endif - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - off, (uchar *)buf, CONFIG_ENV_SIZE); - - env_import(buf, 1); -} - -int saveenv(void) -{ - env_t env_new; - int rc; - unsigned int off = CONFIG_ENV_OFFSET; -#ifdef CONFIG_ENV_OFFSET_REDUND - unsigned int off_red = CONFIG_ENV_OFFSET_REDUND; - char flag_obsolete = OBSOLETE_FLAG; -#endif - - BUG_ON(env_ptr != NULL); - - rc = env_export(&env_new); - if (rc) - return rc; - -#ifdef CONFIG_ENV_OFFSET_REDUND - if (gd->env_valid == 1) { - off = CONFIG_ENV_OFFSET_REDUND; - off_red = CONFIG_ENV_OFFSET; - } - - env_new.flags = ACTIVE_FLAG; -#endif - - rc = eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR, - off, (uchar *)&env_new, CONFIG_ENV_SIZE); - -#ifdef CONFIG_ENV_OFFSET_REDUND - if (rc == 0) { - eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR, - off_red + offsetof(env_t, flags), - (uchar *)&flag_obsolete, 1); - - if (gd->env_valid == 1) - gd->env_valid = 2; - else - gd->env_valid = 1; - } -#endif - return rc; -} - -/* - * Initialize Environment use - * - * We are still running from ROM, so data use is limited. - * Use a (moderately small) buffer on the stack - */ -#ifdef CONFIG_ENV_OFFSET_REDUND -int env_init(void) -{ - ulong len, crc[2], crc_tmp; - unsigned int off, off_env[2]; - uchar buf[64], flags[2]; - int i, crc_ok[2] = {0, 0}; - - eeprom_init(); /* prepare for EEPROM read/write */ - - off_env[0] = CONFIG_ENV_OFFSET; - off_env[1] = CONFIG_ENV_OFFSET_REDUND; - - for (i = 0; i < 2; i++) { - /* read CRC */ - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - off_env[i] + offsetof(env_t, crc), - (uchar *)&crc[i], sizeof(ulong)); - /* read FLAGS */ - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - off_env[i] + offsetof(env_t, flags), - (uchar *)&flags[i], sizeof(uchar)); - - crc_tmp = 0; - len = ENV_SIZE; - off = off_env[i] + offsetof(env_t, data); - while (len > 0) { - int n = (len > sizeof(buf)) ? sizeof(buf) : len; - - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off, - buf, n); - - crc_tmp = crc32(crc_tmp, buf, n); - len -= n; - off += n; - } - - if (crc_tmp == crc[i]) - crc_ok[i] = 1; - } - - if (!crc_ok[0] && !crc_ok[1]) { - gd->env_addr = 0; - gd->env_valid = 0; - - return 0; - } else if (crc_ok[0] && !crc_ok[1]) { - gd->env_valid = 1; - } else if (!crc_ok[0] && crc_ok[1]) { - gd->env_valid = 2; - } else { - /* both ok - check serial */ - if (flags[0] == ACTIVE_FLAG && flags[1] == OBSOLETE_FLAG) - gd->env_valid = 1; - else if (flags[0] == OBSOLETE_FLAG && flags[1] == ACTIVE_FLAG) - gd->env_valid = 2; - else if (flags[0] == 0xFF && flags[1] == 0) - gd->env_valid = 2; - else if (flags[1] == 0xFF && flags[0] == 0) - gd->env_valid = 1; - else /* flags are equal - almost impossible */ - gd->env_valid = 1; - } - - if (gd->env_valid == 2) - gd->env_addr = off_env[1] + offsetof(env_t, data); - else if (gd->env_valid == 1) - gd->env_addr = off_env[0] + offsetof(env_t, data); - - return 0; -} -#else -int env_init(void) -{ - ulong crc, len, new; - unsigned off; - uchar buf[64]; - - eeprom_init(); /* prepare for EEPROM read/write */ - - /* read old CRC */ - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - CONFIG_ENV_OFFSET + offsetof(env_t, crc), - (uchar *)&crc, sizeof(ulong)); - - new = 0; - len = ENV_SIZE; - off = offsetof(env_t, data); - - while (len > 0) { - int n = (len > sizeof(buf)) ? sizeof(buf) : len; - - eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, - CONFIG_ENV_OFFSET + off, buf, n); - new = crc32(new, buf, n); - len -= n; - off += n; - } - - if (crc == new) { - gd->env_addr = offsetof(env_t, data); - gd->env_valid = 1; - } else { - gd->env_addr = 0; - gd->env_valid = 0; - } - - return 0; -} -#endif |