diff options
| -rw-r--r-- | board/gateworks/gw_ventana/gsc.c | 27 | ||||
| -rw-r--r-- | board/gateworks/gw_ventana/gsc.h | 1 | ||||
| -rw-r--r-- | board/gateworks/gw_ventana/gw_ventana.c | 24 |
3 files changed, 30 insertions, 22 deletions
diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c index 718e165..3febd12 100644 --- a/board/gateworks/gw_ventana/gsc.c +++ b/board/gateworks/gw_ventana/gsc.c @@ -132,6 +132,33 @@ int gsc_info(int verbose) return 0; } +/* + * The Gateworks System Controller implements a boot + * watchdog (always enabled) as a workaround for IMX6 boot related + * errata such as: + * ERR005768 - no fix scheduled + * ERR006282 - fixed in silicon r1.2 + * ERR007117 - fixed in silicon r1.3 + * ERR007220 - fixed in silicon r1.3 + * ERR007926 - no fix scheduled + * see http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf + * + * Disable the boot watchdog + */ +int gsc_boot_wd_disable(void) +{ + u8 reg; + + i2c_set_bus_num(CONFIG_I2C_GSC); + if (!gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) { + reg |= (1 << GSC_SC_CTRL1_WDDIS); + if (!gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) + return 0; + } + puts("Error: could not disable GSC Watchdog\n"); + return 1; +} + #ifdef CONFIG_CMD_GSC static int do_gsc_wd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { diff --git a/board/gateworks/gw_ventana/gsc.h b/board/gateworks/gw_ventana/gsc.h index 2d4969e..e0c0ed0 100644 --- a/board/gateworks/gw_ventana/gsc.h +++ b/board/gateworks/gw_ventana/gsc.h @@ -66,5 +66,6 @@ enum { int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len); int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len); int gsc_info(int verbose); +int gsc_boot_wd_disable(void); #endif diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c index 8163d38..8c6f469 100644 --- a/board/gateworks/gw_ventana/gw_ventana.c +++ b/board/gateworks/gw_ventana/gw_ventana.c @@ -659,7 +659,6 @@ static const struct boot_mode board_boot_modes[] = { int misc_init_r(void) { struct ventana_board_info *info = &ventana_info; - unsigned char reg; /* set env vars based on EEPROM data */ if (ventana_info.model[0]) { @@ -740,27 +739,8 @@ int misc_init_r(void) add_board_boot_modes(board_boot_modes); #endif - /* - * The Gateworks System Controller implements a boot - * watchdog (always enabled) as a workaround for IMX6 boot related - * errata such as: - * ERR005768 - no fix scheduled - * ERR006282 - fixed in silicon r1.2 - * ERR007117 - fixed in silicon r1.3 - * ERR007220 - fixed in silicon r1.3 - * ERR007926 - no fix scheduled - * see http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf - * - * Disable the boot watchdog and display/clear the timeout flag if set - */ - i2c_set_bus_num(CONFIG_I2C_GSC); - if (!gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) { - reg |= (1 << GSC_SC_CTRL1_WDDIS); - if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) - puts("Error: could not disable GSC Watchdog\n"); - } else { - puts("Error: could not disable GSC Watchdog\n"); - } + /* disable boot watchdog */ + gsc_boot_wd_disable(); return 0; } |