mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 17:10:11 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright 2019 Google LLC
|
|
* Copyright 2020 B&R Industrial Automation GmbH - http://www.br-automation.com
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_FSP_BINDINGS_H
|
|
#define __ASM_ARCH_FSP_BINDINGS_H
|
|
|
|
#include <asm/arch/fsp/fsp_m_upd.h>
|
|
#include <asm/arch/fsp/fsp_s_upd.h>
|
|
|
|
#define ARRAY_SIZE_OF_MEMBER(s, m) (ARRAY_SIZE((((s *)0)->m)))
|
|
#define SIZE_OF_MEMBER(s, m) (sizeof((((s *)0)->m)))
|
|
|
|
enum conf_type {
|
|
FSP_UINT8,
|
|
FSP_UINT16,
|
|
FSP_UINT32,
|
|
FSP_UINT64,
|
|
FSP_STRING,
|
|
FSP_LPDDR4_SWIZZLE,
|
|
};
|
|
|
|
/**
|
|
* struct fsp_binding - Binding describing devicetree/FSP relationships
|
|
* @offset: Offset within the FSP config structure
|
|
* @propname: Name of property to read
|
|
* @type: Type of the property to read
|
|
* @count: If the property is expected to be an array, this is the
|
|
* number of expected elements
|
|
* Set to 0 if the property is expected to be a scalar
|
|
*
|
|
* The struct fsp_binding is used to describe the relationship between
|
|
* values stored in devicetree and where they are placed in the FSP
|
|
* configuration structure.
|
|
*/
|
|
struct fsp_binding {
|
|
size_t offset;
|
|
char *propname;
|
|
enum conf_type type;
|
|
size_t count;
|
|
};
|
|
|
|
/*
|
|
* LPDDR4 helper routines for configuring the memory UPD for LPDDR4 operation.
|
|
* There are four physical LPDDR4 channels, each 32-bits wide. There are two
|
|
* logical channels using two physical channels together to form a 64-bit
|
|
* interface to memory for each logical channel.
|
|
*/
|
|
|
|
enum {
|
|
LP4_PHYS_CH0A,
|
|
LP4_PHYS_CH0B,
|
|
LP4_PHYS_CH1A,
|
|
LP4_PHYS_CH1B,
|
|
|
|
LP4_NUM_PHYS_CHANNELS,
|
|
};
|
|
|
|
/*
|
|
* The DQs within a physical channel can be bit-swizzled within each byte.
|
|
* Within a channel the bytes can be swapped, but the DQs need to be routed
|
|
* with the corresponding DQS (strobe).
|
|
*/
|
|
enum {
|
|
LP4_DQS0,
|
|
LP4_DQS1,
|
|
LP4_DQS2,
|
|
LP4_DQS3,
|
|
|
|
LP4_NUM_BYTE_LANES,
|
|
DQ_BITS_PER_DQS = 8,
|
|
};
|
|
|
|
/* Provide bit swizzling per DQS and byte swapping within a channel */
|
|
struct lpddr4_chan_swizzle_cfg {
|
|
u8 dqs[LP4_NUM_BYTE_LANES][DQ_BITS_PER_DQS];
|
|
};
|
|
|
|
struct lpddr4_swizzle_cfg {
|
|
struct lpddr4_chan_swizzle_cfg phys[LP4_NUM_PHYS_CHANNELS];
|
|
};
|
|
|
|
/**
|
|
* fsp_m_update_config_from_dtb() - Read FSP-M config from devicetree node
|
|
* @node: Valid node reference to read property from
|
|
* @cfg: Pointer to FSP-M config structure
|
|
* Return: 0 on success, -ve on error
|
|
*
|
|
* This function reads the configuration for FSP-M from the provided
|
|
* devicetree node and saves it in the FSP-M configuration structure.
|
|
* Configuration options that are not present in the devicetree are
|
|
* left at their current value.
|
|
*/
|
|
int fsp_m_update_config_from_dtb(ofnode node, struct fsp_m_config *cfg);
|
|
|
|
/**
|
|
* fsp_s_update_config_from_dtb() - Read FSP-S config from devicetree node
|
|
* @node: Valid node reference to read property from
|
|
* @cfg: Pointer to FSP-S config structure
|
|
* Return: 0 on success, -ve on error
|
|
*
|
|
* This function reads the configuration for FSP-S from the provided
|
|
* devicetree node and saves it in the FSP-S configuration structure.
|
|
* Configuration options that are not present in the devicetree are
|
|
* left at their current value.
|
|
*/
|
|
int fsp_s_update_config_from_dtb(ofnode node, struct fsp_s_config *cfg);
|
|
|
|
#endif
|