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https://github.com/Telecominfraproject/OpenCellular.git
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23149261dc
After firmware update, cr50 toggles the EC's reset line, expecting the system will boot. This isn't the case for Chromebox because it sets AP_OFF flag on a clean shutdown (to restore the previous power state after power loss & restore). This patch adds EC_REBOOT_HIBERNATE_CLEAR_AP_OFF to EC reboot command. It makes EC first clear AP_OFF then hibernate. BUG=b:69721737 BRANCH=none TEST=Verify Fizz reboot after cr50 update. Change-Id: If3207d7284f244ca1adf0d516ef744dbc739a9c1 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/802632 Reviewed-by: Aaron Durbin <adurbin@chromium.org>
128 lines
2.0 KiB
C
128 lines
2.0 KiB
C
/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* System module ISH (Not implemented) */
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#include "clock.h"
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#include "common.h"
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#include "console.h"
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#include "cpu.h"
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#include "gpio.h"
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#include "host_command.h"
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#include "registers.h"
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#include "shared_mem.h"
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#include "system.h"
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#include "hooks.h"
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#include "task.h"
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#include "timer.h"
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#include "util.h"
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#include "spi.h"
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/* Indices for hibernate data registers (RAM backed by VBAT) */
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enum hibdata_index {
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HIBDATA_INDEX_SCRATCHPAD = 0, /* General-purpose scratchpad */
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HIBDATA_INDEX_SAVED_RESET_FLAGS /* Saved reset flags */
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};
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int system_is_reboot_warm(void)
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{
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return 0;
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}
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void system_pre_init(void)
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{
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}
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void chip_save_reset_flags(int flags)
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{
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}
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uint32_t chip_read_reset_flags(void)
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{
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return 0;
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}
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void _system_reset(int flags, int wake_from_hibernate)
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{
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}
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void system_reset(int flags)
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{
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_system_reset(flags, 0);
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while(1)
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;
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}
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const char *system_get_chip_vendor(void)
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{
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return "intel";
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}
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const char *system_get_chip_name(void)
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{
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return "intel";
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}
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static char to_hex(int x)
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{
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if (x >= 0 && x <= 9)
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return '0' + x;
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return 'a' + x - 10;
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}
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const char *system_get_chip_revision(void)
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{
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static char buf[3];
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uint8_t rev = 0x86;
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buf[0] = to_hex(rev / 16);
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buf[1] = to_hex(rev & 0xf);
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buf[2] = '\0';
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return buf;
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}
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int system_get_bbram(enum system_bbram_idx idx, uint8_t *value)
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{
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return EC_ERROR_UNIMPLEMENTED;
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}
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int system_set_bbram(enum system_bbram_idx idx, uint8_t value)
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{
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return EC_ERROR_UNIMPLEMENTED;
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}
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int system_set_scratchpad(uint32_t value)
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{
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return EC_SUCCESS;
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}
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uint32_t system_get_scratchpad(void)
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{
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return 0;
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}
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void system_hibernate(uint32_t seconds, uint32_t microseconds)
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{
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}
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void htimer_interrupt(void)
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{
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/* Time to wake up */
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}
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enum system_image_copy_t system_get_shrspi_image_copy(void)
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{
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return 0;
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}
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uint32_t system_get_lfw_address(void)
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{
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return 0;
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}
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void system_set_image_copy(enum system_image_copy_t copy)
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{
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}
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