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Diffstat (limited to 'chip/npcx/system-npcx7.c')
-rw-r--r--chip/npcx/system-npcx7.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/chip/npcx/system-npcx7.c b/chip/npcx/system-npcx7.c
deleted file mode 100644
index 1ec719c641..0000000000
--- a/chip/npcx/system-npcx7.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/* Copyright 2017 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.
- */
-
-/* System module driver depends on chip series for Chrome EC */
-#include "common.h"
-#include "console.h"
-#include "cpu.h"
-#include "ec_commands.h"
-#include "hooks.h"
-#include "registers.h"
-#include "system.h"
-#include "task.h"
-#include "util.h"
-#include "gpio.h"
-#include "hwtimer_chip.h"
-#include "system_chip.h"
-#include "rom_chip.h"
-
-#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
-
-/* Macros for last 32K ram block */
-#define LAST_RAM_BLK ((NPCX_RAM_SIZE / (32 * 1024)) - 1)
-/* Higher bits are reserved and need to be masked */
-#define RAM_PD_MASK (~BIT(LAST_RAM_BLK))
-
-/*****************************************************************************/
-/* IC specific low-level driver depends on chip series */
-
-void system_mpu_config(void)
-{
-}
-
-#ifdef CONFIG_HIBERNATE_PSL
-#ifndef NPCX_PSL_MODE_SUPPORT
-#error "Do not enable CONFIG_HIBERNATE_PSL if npcx ec doesn't support PSL mode!"
-#endif
-
-void system_enter_psl_mode(void)
-{
- /* Configure pins from GPIOs to PSL which rely on VSBY power rail. */
- gpio_config_module(MODULE_PMU, 1);
-
- /*
- * Only PSL_IN events can pull PSL_OUT to high and reboot ec.
- * We should treat it as wake-up pin reset.
- */
- NPCX_BBRAM(BBRM_DATA_INDEX_WAKE) = HIBERNATE_WAKE_PIN;
-
- /*
- * Pull PSL_OUT (GPIO85) to low to cut off ec's VCC power rail by
- * setting bit 5 of PDOUT(8).
- */
- SET_BIT(NPCX_PDOUT(GPIO_PORT_8), 5);
-}
-
-/* Hibernate function implemented by PSL (Power Switch Logic) mode. */
-void __keep __attribute__ ((noreturn)) __enter_hibernate_in_psl(void)
-{
- system_enter_psl_mode();
- /* Spin and wait for PSL cuts power; should never return */
- while (1)
- ;
-}
-
-static void system_psl_type_sel(int psl_no, uint32_t flags)
-{
- /* Set PSL input events' type as level or edge trigger */
- if ((flags & GPIO_INT_F_HIGH) || (flags & GPIO_INT_F_LOW))
- CLEAR_BIT(NPCX_GLUE_PSL_CTS, psl_no + 4);
- else if ((flags & GPIO_INT_F_RISING) || (flags & GPIO_INT_F_FALLING))
- SET_BIT(NPCX_GLUE_PSL_CTS, psl_no + 4);
-
- /*
- * Set PSL input events' polarity is low (high-to-low) active or
- * high (low-to-high) active
- */
- if (flags & GPIO_HIB_WAKE_HIGH)
- SET_BIT(NPCX_DEVALT(ALT_GROUP_D), 2 * psl_no);
- else
- CLEAR_BIT(NPCX_DEVALT(ALT_GROUP_D), 2 * psl_no);
-}
-
-int system_config_psl_mode(enum gpio_signal signal)
-{
- int psl_no;
- const struct gpio_info *g = gpio_list + signal;
-
- if (g->port == GPIO_PORT_D && g->mask == MASK_PIN2) /* GPIOD2 */
- psl_no = 0;
- else if (g->port == GPIO_PORT_0 && (g->mask & 0x07)) /* GPIO00/01/02 */
- psl_no = GPIO_MASK_TO_NUM(g->mask) + 1;
- else
- return 0;
-
- system_psl_type_sel(psl_no, g->flags);
- return 1;
-}
-
-#else
-/**
- * Hibernate function in last 32K ram block for npcx7 series.
- * Do not use global variable since we also turn off data ram.
- */
-void __keep __attribute__ ((noreturn, section(".after_init")))
-__enter_hibernate_in_last_block(void)
-{
- /*
- * The hibernate utility is located in the last block of RAM. The size
- * of each RAM block is 32KB. We turn off all blocks except last one
- * for better power consumption.
- */
- NPCX_RAM_PD(0) = RAM_PD_MASK & 0xFF;
- NPCX_RAM_PD(1) = (RAM_PD_MASK >> 8) & 0x0F;
-
- /* Set deep idle mode */
- NPCX_PMCSR = 0x6;
-
- /* Enter deep idle, wake-up by GPIOs or RTC */
- asm volatile ("wfi");
-
- /* RTC wake-up */
- if (IS_BIT_SET(NPCX_WTC, NPCX_WTC_PTO))
- /*
- * Mark wake-up reason for hibernate
- * Do not call bbram_data_write directly cause of
- * no stack.
- */
- NPCX_BBRAM(BBRM_DATA_INDEX_WAKE) = HIBERNATE_WAKE_MTC;
- else
- /* Otherwise, we treat it as GPIOs wake-up */
- NPCX_BBRAM(BBRM_DATA_INDEX_WAKE) = HIBERNATE_WAKE_PIN;
-
- /* Start a watchdog reset */
- NPCX_WDCNT = 0x01;
- /* Reload and restart Timer 0 */
- SET_BIT(NPCX_T0CSR, NPCX_T0CSR_RST);
- /* Wait for timer is loaded and restart */
- while (IS_BIT_SET(NPCX_T0CSR, NPCX_T0CSR_RST))
- ;
-
- /* Spin and wait for reboot; should never return */
- while (1)
- ;
-}
-#endif
-
-/**
- * Hibernate function for different Nuvoton chip series.
- */
-void __hibernate_npcx_series(void)
-{
-#ifdef CONFIG_HIBERNATE_PSL
- __enter_hibernate_in_psl();
-#else
- /* Make sure this is located in the last 32K code RAM block */
- ASSERT((uint32_t)(&__after_init_end) - CONFIG_PROGRAM_MEMORY_BASE
- < (32*1024));
-
- /* Execute hibernate func in last 32K block */
- __enter_hibernate_in_last_block();
-#endif
-}
-
-#if defined(CONFIG_HIBERNATE_PSL)
-static void report_psl_wake_source(void)
-{
- if (!(system_get_reset_flags() & EC_RESET_FLAG_HIBERNATE))
- return;
-
- CPRINTS("PSL_CTS: 0x%x", NPCX_GLUE_PSL_CTS & 0xf);
-}
-DECLARE_HOOK(HOOK_INIT, report_psl_wake_source, HOOK_PRIO_DEFAULT);
-#endif