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https://github.com/ARM-software/arm-trusted-firmware.git
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3c250b9ab6
This patch changes all Rockchip platforms to initialize the serial console with information supplied by coreboot rather than hardcoded base address and divisor values if BL31 is run on top of coreboot. Moving the BL2-to-BL31 parameter parsing as early as possible to ensure that the console is available for all following code. Also update the Rockchip platform to use MULTI_CONSOLE_API. Change-Id: I670d350fa2f8b8133539f91ac14977ab47db60d9 Signed-off-by: Julius Werner <jwerner@chromium.org>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef __PLAT_PARAMS_H__
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#define __PLAT_PARAMS_H__
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#include <stdint.h>
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/*
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* We defined several plat parameter structs for BL2 to pass platform related
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* parameters to Rockchip BL31 platform code. All plat parameters start with
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* a common header, which has a type field to indicate the parameter type, and
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* a next pointer points to next parameter. If the parameter is the last one in
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* the list, next pointer will points to NULL. After the header comes the
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* variable-sized members that describe the parameter. The picture below shows
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* how the parameters are kept in memory.
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*
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* head of list ---> +----------------+ --+
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* | type | |
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* +----------------+ |--> struct bl31_plat_param
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* +----| next | |
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* | +----------------+ --+
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* | | parameter data |
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* | +----------------+
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* |
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* +--> +----------------+ --+
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* | type | |
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* +----------------+ |--> struct bl31_plat_param
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* NULL <---| next | |
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* +----------------+ --+
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* | parameter data |
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* +----------------+
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*
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* Note: The SCTLR_EL3.A bit (Alignment fault check enable) of ARM TF is set,
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* so be sure each parameter struct starts on 64-bit aligned address. If not,
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* alignment fault will occur during accessing its data member.
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*/
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#define BL31_GPIO_DIR_OUT 0
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#define BL31_GPIO_DIR_IN 1
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#define BL31_GPIO_LEVEL_LOW 0
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#define BL31_GPIO_LEVEL_HIGH 1
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#define BL31_GPIO_PULL_NONE 0
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#define BL31_GPIO_PULL_UP 1
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#define BL31_GPIO_PULL_DOWN 2
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/* param type */
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enum {
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PARAM_NONE = 0,
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PARAM_RESET,
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PARAM_POWEROFF,
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PARAM_SUSPEND_GPIO,
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PARAM_SUSPEND_APIO,
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PARAM_COREBOOT_TABLE,
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};
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struct apio_info {
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uint8_t apio1 : 1;
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uint8_t apio2 : 1;
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uint8_t apio3 : 1;
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uint8_t apio4 : 1;
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uint8_t apio5 : 1;
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};
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struct gpio_info {
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uint8_t polarity;
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uint8_t direction;
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uint8_t pull_mode;
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uint32_t index;
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};
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/* common header for all plat parameter type */
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struct bl31_plat_param {
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uint64_t type;
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void *next;
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};
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struct bl31_gpio_param {
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struct bl31_plat_param h;
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struct gpio_info gpio;
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};
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struct bl31_apio_param {
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struct bl31_plat_param h;
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struct apio_info apio;
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};
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struct bl31_u64_param {
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struct bl31_plat_param h;
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uint64_t value;
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};
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#endif /* __PLAT_PARAMS_H__ */
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