diff options
Diffstat (limited to 'src/vendorcode/cavium/bdk/libbdk-boot/bdk-watchdog.c')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libbdk-boot/bdk-watchdog.c | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-boot/bdk-watchdog.c b/src/vendorcode/cavium/bdk/libbdk-boot/bdk-watchdog.c deleted file mode 100644 index 48f955a7ef..0000000000 --- a/src/vendorcode/cavium/bdk/libbdk-boot/bdk-watchdog.c +++ /dev/null @@ -1,108 +0,0 @@ -/***********************license start*********************************** -* Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). 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. -* -* * Neither the name of Cavium Inc. nor the names of -* its contributors may be used to endorse or promote products -* derived from this software without specific prior written -* permission. -* -* This Software, including technical data, may be subject to U.S. export -* control laws, including the U.S. Export Administration Act and its -* associated regulations, and may be subject to export or import -* regulations in other countries. -* -* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" -* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR -* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT -* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY -* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT -* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES -* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR -* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, -* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK -* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. -***********************license end**************************************/ -#include <bdk.h> -#include "libbdk-arch/bdk-csrs-gti.h" - -/** - * Setup the watchdog to expire in timeout_ms milliseconds. When the watchdog - * expires, the chip three things happen: - * 1) Expire 1: interrupt that is ignored by the BDK - * 2) Expire 2: DEL3T interrupt, which is disabled and ignored - * 3) Expire 3: Soft reset of the chip - * - * Since we want a soft reset, we actually program the watchdog to expire at - * the timeout / 3. - * - * @param timeout_ms Timeout in milliseconds. If this is zero, the timeout is taken from the - * global configuration option BDK_BRD_CFG_WATCHDOG_TIMEOUT - */ -void bdk_watchdog_set(unsigned int timeout_ms) -{ - if (timeout_ms == 0) - timeout_ms = bdk_config_get_int(BDK_CONFIG_WATCHDOG_TIMEOUT); - - if (timeout_ms > 0) - { - uint64_t sclk = bdk_clock_get_rate(bdk_numa_local(), BDK_CLOCK_SCLK); - uint64_t timeout_sclk = sclk * timeout_ms / 1000; - /* Per comment above, we want the watchdog to expire at 3x the rate specified */ - timeout_sclk /= 3; - /* Watchdog counts in 1024 cycle steps */ - uint64_t timeout_wdog = timeout_sclk >> 10; - /* We can only specify the upper 16 bits of a 24 bit value. Round up */ - timeout_wdog = (timeout_wdog + 0xff) >> 8; - /* If the timeout overflows the hardware limit, set max */ - if (timeout_wdog >= 0x10000) - timeout_wdog = 0xffff; - - BDK_TRACE(INIT, "Watchdog: Set to expire %lu SCLK cycles\n", timeout_wdog << 18); - BDK_CSR_MODIFY(c, bdk_numa_local(), BDK_GTI_CWD_WDOGX(bdk_get_core_num()), - c.s.len = timeout_wdog; - c.s.mode = 3); - } -} - -/** - * Signal the watchdog that we are still running - */ -void bdk_watchdog_poke(void) -{ - BDK_CSR_WRITE(bdk_numa_local(), BDK_GTI_CWD_POKEX(bdk_get_core_num()), 0); -} - -/** - * Disable the hardware watchdog - */ -void bdk_watchdog_disable(void) -{ - BDK_CSR_WRITE(bdk_numa_local(), BDK_GTI_CWD_WDOGX(bdk_get_core_num()), 0); - BDK_TRACE(INIT, "Watchdog: Disabled\n"); -} - -/** - * Return true if the watchdog is configured and running - * - * @return Non-zero if watchdog is running - */ -int bdk_watchdog_is_running(void) -{ - BDK_CSR_INIT(wdog, bdk_numa_local(), BDK_GTI_CWD_WDOGX(bdk_get_core_num())); - return wdog.s.mode != 0; -} - |