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1029239bc1
Currently, chip/g uses jtag_pre_init() to do some chip
pre-initialization that isn't actually related to JTAG. This has been
harmless, but it's currently the only chip which actually does "JTAG"
pre-init, and we'd like to get rid of that. So, move that
functionality to a new optional chip_pre_init() function.
BUG=chromium:747629
BRANCH=cr50
TEST=make buildall
boot cr50
make all dis; confirm chip_pre_init() is called early in <main>
Change-Id: I3cae0747ab0c3cc974fce9f108947207b38e035f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/629876
Reviewed-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* Copyright (c) 2013 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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* Extra hooks for board and chip initialization/configuration
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*/
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#ifndef __CROS_EC_BOARD_CONFIG_H
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#define __CROS_EC_BOARD_CONFIG_H
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#include "common.h"
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#ifdef CONFIG_BOARD_PRE_INIT
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/**
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* Configure board before any inits are called.
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*
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* Note that this is in general a hacky place to do configuration. Most config
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* is actually chip-specific or module-specific and not board-specific, so
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* putting it here hides dependencies between module inits and board init.
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* Think very hard before putting code here.
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*/
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void board_config_pre_init(void);
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#endif
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#ifdef CONFIG_BOARD_POST_GPIO_INIT
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/**
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* Configure board after GPIOs are initialized.
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*
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* Note that this is in general a hacky place to do configuration. Most config
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* is actually chip-specific or module-specific and not board-specific, so
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* putting it here hides dependencies between module inits and board init.
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* Think very hard before putting code here.
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*/
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void board_config_post_gpio_init(void);
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#endif
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#ifdef CONFIG_BOARD_HAS_BEFORE_RSMRST
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/**
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* Configure board before RSMRST# state change
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*
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* This board function allows workarounds to be applied to a board after all
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* power rails are up but before the AP is out of reset.
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*
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* Most workarounds for power sequencing can go in board init hooks, but for
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* devices where the power sequencing is driven by external PMIC the EC may
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* not get interrupts in time to handle workarounds. For x86 platforms and
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* boards which support RSMRST# passthrough this hook will allow the board
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* to apply workarounds despite the PMIC sequencing.
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*/
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void board_before_rsmrst(int rsmrst);
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#endif
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/**
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* Configure chip early in main(), just after board_config_pre_init().
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*
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* Most chip configuration is not particularly timing critical and can be done
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* in other chip driver initialization such as system_pre_init() or HOOK_INIT
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* handlers. Chip pre-init should be reserved for small amounts of critical
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* functionality that can't wait that long. Think very hard before putting
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* code here.
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*/
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void chip_pre_init(void);
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#endif /* __CROS_EC_BOARD_CONFIG_H */
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