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soc: arm: nordic_nrf: add source code for validating rram partitions

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RRAM is a part of nRF54L15 SOC.

Signed-off-by: Witold Lukasik <witold.lukasik@nordicsemi.no>
This commit is contained in:
Witold Lukasik 2023-12-11 17:30:04 +01:00 • committed by Fabio Baltieri
commit a5eeb6d6db
1 changed files with 97 additions and 0 deletions
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soc/arm/nordic_nrf/validate_rram_partitions.c Normal file
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/*
* Copyright (c) 2024 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/devicetree.h>
#include <zephyr/sys/util_macro.h>
#include <zephyr/toolchain.h>
#define PAIR__(f, sep, arg_first, ...) FOR_EACH_FIXED_ARG(f, sep, arg_first, __VA_ARGS__)
#define PAIR_(f, sep, args_to_expand) PAIR__(f, sep, args_to_expand)
#define PAIR(n, f, sep, ...) PAIR_(f, sep, GET_ARGS_LESS_N(n, __VA_ARGS__))
/**
* @brief Call a macro on every unique pair of the given variadic arguments.
*
* For example, FOR_EACH_PAIR(f, (,), 1, 2, 3, 4) should expand to:
*
* f(2, 1) , f(3, 1) , f(4, 1) , f(3, 2) , f(4, 2) , f(4, 3)
*
* @param f Macro to call. Must accept two arguments.
* @param sep Separator between macro calls. Must be in parentheses.
*
* @see FOR_EACH
*/
#define FOR_EACH_PAIR(f, sep, ...) \
LISTIFY(NUM_VA_ARGS_LESS_1(__VA_ARGS__), PAIR, sep, f, sep, __VA_ARGS__)
/**
* @brief Get a node's non-secure register block start address.
*
* @param node_id Node identifier.
*/
#define REG_ADDR_NS(node_id) (DT_REG_ADDR(node_id) & 0xEFFFFFFFUL)
/**
* @brief Get a node's non-secure register block end address.
*
* @param node_id Node identifier.
*/
#define REG_END_NS(node_id) (REG_ADDR_NS(node_id) + DT_REG_SIZE(node_id))
/* clang-format off */
#define RRAM_BASE REG_ADDR_NS(DT_NODELABEL(rram0))
#define RRAM_CONTROLLER DT_NODELABEL(rram_controller)
#if !DT_NODE_EXISTS(RRAM_CONTROLLER)
#error "Missing \"rram-controller\" node"
#endif
#define CHECK_RRAM_NODE_COMPATIBLE(node_id) \
BUILD_ASSERT(DT_NODE_HAS_COMPAT(node_id, soc_nv_flash), \
"Missing compatible \"soc-nv-flash\" from " DT_NODE_FULL_NAME(node_id) \
" (required for all children of " DT_NODE_PATH(RRAM_CONTROLLER) ")")
#define CHECK_RRAM_PARTITION_WITHIN_PARENT(node_id) \
BUILD_ASSERT(RRAM_BASE + REG_ADDR_NS(node_id) >= REG_ADDR_NS(DT_GPARENT(node_id)) && \
RRAM_BASE + REG_END_NS(node_id) <= REG_END_NS(DT_GPARENT(node_id)), \
DT_NODE_FULL_NAME(node_id) " is not fully contained within its parent " \
DT_NODE_PATH(DT_GPARENT(node_id)))
#define CHECK_NODES_NON_OVERLAPPING(node_id_1, node_id_2) \
BUILD_ASSERT(REG_ADDR_NS(node_id_1) >= REG_END_NS(node_id_2) || \
REG_ADDR_NS(node_id_2) >= REG_END_NS(node_id_1), \
DT_NODE_PATH(node_id_1) " and " DT_NODE_PATH(node_id_2) " are overlapping")
/* Retrieve all RRAM nodes that are children of "rram-controller". */
#define COMMA(x) x,
#define RRAM_NODES_LIST LIST_DROP_EMPTY(DT_FOREACH_CHILD(RRAM_CONTROLLER, COMMA))
#if !IS_EMPTY(RRAM_NODES_LIST)
/* Check that every RRAM node matches the "soc-nv-flash" compatible. */
FOR_EACH(CHECK_RRAM_NODE_COMPATIBLE, (;), RRAM_NODES_LIST);
/* Check that no two RRAM nodes are overlapping. */
FOR_EACH_PAIR(CHECK_NODES_NON_OVERLAPPING, (;), RRAM_NODES_LIST);
#endif
/* Retrieve all RRAM partitions by looking for "fixed-partitions" compatibles in each RRAM node. */
#define PARTITION_(x) \
COND_CODE_1(DT_NODE_HAS_COMPAT(x, fixed_partitions), (DT_FOREACH_CHILD(x, COMMA)), ())
#define PARTITION(x, ...) DT_FOREACH_CHILD_STATUS_OKAY(x, PARTITION_)
#define RRAM_PARTITION_LIST LIST_DROP_EMPTY(DT_FOREACH_CHILD_VARGS(RRAM_CONTROLLER, PARTITION))
#if !IS_EMPTY(RRAM_PARTITION_LIST)
/* Check that every RRAM partition is within the bounds of its parent RRAM node. */
FOR_EACH(CHECK_RRAM_PARTITION_WITHIN_PARENT, (;), RRAM_PARTITION_LIST);
/* Check that no two RRAM partitions are overlapping. */
FOR_EACH_PAIR(CHECK_NODES_NON_OVERLAPPING, (;), RRAM_PARTITION_LIST);
#endif