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06e55dc842
stm32mp_ddrctl structure contains DDRCTRL registers definitions. stm32mp_ddr_info contains general DDR information extracted from DT. stm32mp_ddr_size moves to the generic side. stm32mp1_ddr_priv contains platform private data. stm32mp_ddr_dt_get_info() and stm32mp_ddr_dt_get_param() allow to retrieve data from DT. They are located in new generic c/h files in which stm32mp_ddr_param structure is declared. Platform makefile is updated. Adapt driver with this new classification. Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com> Change-Id: I4187376c9fff1a30e7a94407d188391547107997
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/*
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* Copyright (C) 2022, STMicroelectronics - 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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#include <errno.h>
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#include <stdbool.h>
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#include <common/fdt_wrappers.h>
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#include <drivers/st/stm32mp_ram.h>
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#include <libfdt.h>
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#include <platform_def.h>
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int stm32mp_ddr_dt_get_info(void *fdt, int node, struct stm32mp_ddr_info *info)
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{
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int ret;
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ret = fdt_read_uint32(fdt, node, "st,mem-speed", &info->speed);
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if (ret < 0) {
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VERBOSE("%s: no st,mem-speed\n", __func__);
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return -EINVAL;
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}
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ret = fdt_read_uint32(fdt, node, "st,mem-size", &info->size);
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if (ret < 0) {
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VERBOSE("%s: no st,mem-size\n", __func__);
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return -EINVAL;
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}
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info->name = fdt_getprop(fdt, node, "st,mem-name", NULL);
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if (info->name == NULL) {
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VERBOSE("%s: no st,mem-name\n", __func__);
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return -EINVAL;
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}
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INFO("RAM: %s\n", info->name);
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return 0;
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}
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int stm32mp_ddr_dt_get_param(void *fdt, int node, const struct stm32mp_ddr_param *param,
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uint32_t param_size, uintptr_t config)
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{
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int ret;
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uint32_t idx;
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for (idx = 0U; idx < param_size; idx++) {
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ret = fdt_read_uint32_array(fdt, node, param[idx].name, param[idx].size,
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(void *)(config + param[idx].offset));
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VERBOSE("%s: %s[0x%x] = %d\n", __func__, param[idx].name, param[idx].size, ret);
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if (ret != 0) {
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ERROR("%s: Cannot read %s, error=%d\n", __func__, param[idx].name, ret);
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return -EINVAL;
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}
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}
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return 0;
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}
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