gardenia/loader/mc.c

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/*
* Copyright (c) 2024 hydrogenium2020-offical
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2022 CTCaer
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*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "clock.h"
#include "printf.h"
#include "t124.h"
#include "util.h"
#include "mc.h"
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void mc_enable_ahb_redirect()
{
CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD) = CLOCK(CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD) & 0xFFF7FFFF | 0x80000;
//MC(MC_IRAM_REG_CTRL) &= 0xFFFFFFFE;
MC(MC_IRAM_BOM) = 0x40000000;
MC(MC_IRAM_TOM) = 0x4003F000;
}
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void mc_enable()
{
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CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC) = CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC) & 0x1FFFFFFF | 0x40000000;
//Enable MC clock.
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_H_SET) = CLOCK(CLK_RST_CONTROLLER_CLK_ENB_H_SET) & 0xFFFFFFFE | 1;
//Enable EMC DLL clock.
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_X_SET) = CLOCK(CLK_RST_CONTROLLER_CLK_ENB_X_SET) & 0xFFFFBFFF | 0x4000;
CLOCK(CLK_RST_CONTROLLER_RST_DEV_H_SET) = 0x2000001; //Clear EMC and MC reset.
sleep(5);
//Enable ahb redirect
mc_enable_ahb_redirect();
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}