threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
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* Copyright (C) 2015 MediaTek Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/platform_device.h>
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#include <mt_emi.h>
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#include "pasr_api_v1.h"
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/* acquire DRAM Setting for PASR/DPD */
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static unsigned int get_segment_nr(unsigned int rk_index)
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{
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unsigned int rank_size;
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unsigned int num_of_1;
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unsigned int i;
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rank_size = get_rank_size(rk_index) / get_ch_num();
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num_of_1 = 0;
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for (i = 0; i < 32; i++) {
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if (rank_size & 0x1)
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num_of_1++;
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rank_size = rank_size >> 1;
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}
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if (num_of_1 > 1)
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return 6;
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else
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return 8;
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}
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void acquire_dram_setting(struct basic_dram_setting *pasrdpd)
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{
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unsigned int ch, rk;
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pasrdpd->channel_nr = get_ch_num();
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for (ch = 0; ch < MAX_CH; ch++) {
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for (rk = 0; rk < MAX_RK; rk++) {
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if ((ch >= pasrdpd->channel_nr) ||
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(rk >= get_rk_num())) {
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pasrdpd->channel[ch].rank[rk].valid_rank =
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false;
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pasrdpd->channel[ch].rank[rk].rank_size = 0;
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pasrdpd->channel[ch].rank[rk].segment_nr = 0;
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continue;
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}
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pasrdpd->channel[ch].rank[rk].valid_rank = true;
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pasrdpd->channel[ch].rank[rk].rank_size =
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get_rank_size(rk) / (pasrdpd->channel_nr);
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pasrdpd->channel[ch].rank[rk].segment_nr =
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get_segment_nr(rk);
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}
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}
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}
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