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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* This file is part of open_agb_firm
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* Copyright (C) 2021 derrek, profi200
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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 as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "types.h"
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#include "arm11/drivers/spiflash.h"
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#include "arm11/drivers/spi.h"
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bool spiflash_get_status(void)
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{
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alignas(4) u8 cmd[4];
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cmd[0] = SPIFLASH_RDSR;
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NSPI_sendRecv(NSPI_DEV_CS_HIGH | NSPI_DEV_NVRAM, cmd, cmd, 1, 1);
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if(cmd[0] & 1) return false;
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return true;
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}
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void spiflash_read(u32 offset, u32 size, u32 *buf)
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{
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offset = __builtin_bswap32(offset & 0x00FFFFFFu) | SPIFLASH_READ;
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NSPI_sendRecv(NSPI_DEV_CS_HIGH | NSPI_DEV_NVRAM, &offset, buf, 4, size);
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}
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