diff options
Diffstat (limited to 'chip/ish/system.c')
| -rw-r--r-- | chip/ish/system.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/chip/ish/system.c b/chip/ish/system.c deleted file mode 100644 index 280bf57fa4..0000000000 --- a/chip/ish/system.c +++ /dev/null @@ -1,190 +0,0 @@ -/* Copyright 2016 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "clock.h" -#include "common.h" -#include "console.h" -#include "cpu.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "interrupts.h" -#include "ish_fwst.h" -#include "ish_persistent_data.h" -#include "power_mgt.h" -#include "registers.h" -#include "shared_mem.h" -#include "spi.h" -#include "system.h" -#include "task.h" -#include "timer.h" -#include "util.h" - -#define CPUTS(outstr) cputs(CC_SYSTEM, outstr) -#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args) -#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args) - -int system_is_reboot_warm(void) -{ - return !(system_get_reset_flags() & - (EC_RESET_FLAG_POWER_ON | EC_RESET_FLAG_HARD)); -} - -void system_pre_init(void) -{ - ish_fwst_set_fw_status(FWSTS_FW_IS_RUNNING); - if (IS_ENABLED(CONFIG_ISH_CLEAR_FABRIC_ERRORS)) - task_enable_irq(ISH_FABRIC_IRQ); - ish_pm_init(); - ish_persistent_data_init(); -} - -void chip_save_reset_flags(uint32_t flags) -{ - ish_persistent_data.reset_flags = flags; -} - -uint32_t chip_read_reset_flags(void) -{ - return ish_persistent_data.reset_flags; -} - -/* - * Kill the Minute-IA core and don't come back alive. - * - * Used when the watchdog timer exceeds max retries and we want to - * disable ISH completely. - */ -__attribute__((noreturn)) -static void system_halt(void) -{ - cflush(); - - while (1) { - disable_all_interrupts(); - WDT_CONTROL = 0; - CCU_TCG_EN = 1; - __asm__ volatile ( - "cli\n" - "hlt\n"); - } -} - -void system_reset(int flags) -{ - uint32_t save_flags; - - /* - * We can't save any data when we do an ish_mia_reset(). Take - * the quick path out. - */ - if (!IS_ENABLED(CONFIG_ISH_PM_AONTASK) || flags & SYSTEM_RESET_HARD) { - ish_mia_reset(); - __builtin_unreachable(); - } - - system_encode_save_flags(flags, &save_flags); - - if (flags & SYSTEM_RESET_AP_WATCHDOG) { - save_flags |= EC_RESET_FLAG_WATCHDOG; - ish_persistent_data.watchdog_counter += 1; - if (ish_persistent_data.watchdog_counter - >= CONFIG_WATCHDOG_MAX_RETRIES) { - CPRINTS("Halting ISH due to max watchdog resets"); - system_halt(); - } - } - - chip_save_reset_flags(save_flags); - - ish_persistent_data_commit(); - ish_pm_reset(ISH_PM_STATE_RESET); - __builtin_unreachable(); -} - -const char *system_get_chip_vendor(void) -{ - return "intel"; -} - -const char *system_get_chip_name(void) -{ - return "intel"; -} - -static char to_hex(int x) -{ - if (x >= 0 && x <= 9) - return '0' + x; - return 'a' + x - 10; -} - -const char *system_get_chip_revision(void) -{ - static char buf[3]; - uint8_t rev = 0x86; - - buf[0] = to_hex(rev / 16); - buf[1] = to_hex(rev & 0xf); - buf[2] = '\0'; - return buf; -} - -int system_get_bbram(enum system_bbram_idx idx, uint8_t *value) -{ - return EC_ERROR_UNIMPLEMENTED; -} - -int system_set_bbram(enum system_bbram_idx idx, uint8_t value) -{ - return EC_ERROR_UNIMPLEMENTED; -} - -int system_set_scratchpad(uint32_t value) -{ - return EC_SUCCESS; -} - -uint32_t system_get_scratchpad(void) -{ - return 0; -} - -void system_hibernate(uint32_t seconds, uint32_t microseconds) -{ -} - -void htimer_interrupt(void) -{ - /* Time to wake up */ -} - -enum system_image_copy_t system_get_shrspi_image_copy(void) -{ - return 0; -} - -uint32_t system_get_lfw_address(void) -{ - return 0; -} - -void system_set_image_copy(enum system_image_copy_t copy) -{ -} - -static __maybe_unused void fabric_isr(void) -{ - /** - * clear fabric error status, otherwise it will wakeup ISH immediately - * when entered low power mode. - * TODO(b:130740646): figure out why this issue happens. - */ - if (FABRIC_AGENT_STATUS & FABRIC_MIA_STATUS_BIT_ERR) - FABRIC_AGENT_STATUS = FABRIC_AGENT_STATUS; -} -#ifdef CONFIG_ISH_CLEAR_FABRIC_ERRORS -DECLARE_IRQ(ISH_FABRIC_IRQ, fabric_isr); -#endif |