468 lines
13 KiB
C
468 lines
13 KiB
C
// Copyright 2014 Normmatt
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common.h"
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#include "sdmmc.h"
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#include "delay.h"
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//Uncomment to enable 32bit fifo support?
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//not currently working
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//#define DATA32_SUPPORT
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static struct mmcdevice handleNAND;
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static struct mmcdevice handleSD;
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mmcdevice *getMMCDevice(int drive)
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{
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if(drive==0) return &handleNAND;
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return &handleSD;
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}
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int __attribute__((noinline)) geterror(struct mmcdevice *ctx)
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{
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//if(ctx->error == 0x4) return -1;
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//else return 0;
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return (ctx->error << 29) >> 31;
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}
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void __attribute__((noinline)) inittarget(struct mmcdevice *ctx)
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{
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sdmmc_mask16(REG_SDPORTSEL,0x3,(u16)ctx->devicenumber);
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setckl(ctx->clk);
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if (ctx->SDOPT == 0) {
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sdmmc_mask16(REG_SDOPT, 0, 0x8000);
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} else {
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sdmmc_mask16(REG_SDOPT, 0x8000, 0);
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}
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}
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void __attribute__((noinline)) sdmmc_send_command(struct mmcdevice *ctx, u32 cmd, u32 args)
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{
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bool getSDRESP = (cmd << 15) >> 31;
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u16 flags = (cmd << 15) >> 31;
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const bool readdata = cmd & 0x20000;
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const bool writedata = cmd & 0x40000;
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if (readdata || writedata)
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flags |= TMIO_STAT0_DATAEND;
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ctx->error = 0;
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while (sdmmc_read16(REG_SDSTATUS1) & TMIO_STAT1_CMD_BUSY); //mmc working?
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sdmmc_write16(REG_SDIRMASK0,0);
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sdmmc_write16(REG_SDIRMASK1,0);
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sdmmc_write16(REG_SDSTATUS0,0);
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sdmmc_write16(REG_SDSTATUS1,0);
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#ifdef DATA32_SUPPORT
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if (readdata)
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sdmmc_mask16(REG_SDDATACTL32, 0x1000, 0x800);
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if (writedata)
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sdmmc_mask16(REG_SDDATACTL32, 0x800, 0x1000);
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#else
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sdmmc_mask16(REG_SDDATACTL32,0x1800,0);
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#endif
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sdmmc_write16(REG_SDCMDARG0,args &0xFFFF);
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sdmmc_write16(REG_SDCMDARG1,args >> 16);
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sdmmc_write16(REG_SDCMD,cmd &0xFFFF);
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u32 size = ctx->size;
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u16 *dataPtr = (u16*)ctx->data;
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#ifdef DATA32_SUPPORT
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u32 *dataPtr32 = (u32*)ctx->data;
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#endif
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bool useBuf = ( NULL != dataPtr );
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#ifdef DATA32_SUPPORT
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bool useBuf32 = (useBuf && (0 == (3 & ((u32)dataPtr))));
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#endif
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u16 status0 = 0;
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while(true) {
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u16 status1 = sdmmc_read16(REG_SDSTATUS1);
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if (status1 & TMIO_STAT1_RXRDY) {
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if (readdata && useBuf) {
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sdmmc_mask16(REG_SDSTATUS1, TMIO_STAT1_RXRDY, 0);
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//sdmmc_write16(REG_SDSTATUS1,~TMIO_STAT1_RXRDY);
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if (size > 0x1FF) {
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#ifdef DATA32_SUPPORT
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if (useBuf32) {
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for(int i = 0; i<0x200; i+=4)
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*dataPtr32++ = sdmmc_read32(REG_SDFIFO32);
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} else {
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#endif
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for(int i = 0; i<0x200; i+=2)
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*dataPtr++ = sdmmc_read16(REG_SDFIFO);
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#ifdef DATA32_SUPPORT
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}
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#endif
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size -= 0x200;
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}
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}
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}
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if (status1 & TMIO_STAT1_TXRQ) {
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if (writedata && useBuf) {
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sdmmc_mask16(REG_SDSTATUS1, TMIO_STAT1_TXRQ, 0);
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//sdmmc_write16(REG_SDSTATUS1,~TMIO_STAT1_TXRQ);
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if (size > 0x1FF) {
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#ifdef DATA32_SUPPORT
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for (int i = 0; i<0x200; i+=4)
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sdmmc_write32(REG_SDFIFO32,*dataPtr32++);
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#else
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for (int i = 0; i<0x200; i+=2)
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sdmmc_write16(REG_SDFIFO,*dataPtr++);
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#endif
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size -= 0x200;
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}
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}
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}
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if (status1 & TMIO_MASK_GW) {
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ctx->error |= 4;
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break;
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}
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if (!(status1 & TMIO_STAT1_CMD_BUSY)) {
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status0 = sdmmc_read16(REG_SDSTATUS0);
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if (sdmmc_read16(REG_SDSTATUS0) & TMIO_STAT0_CMDRESPEND)
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ctx->error |= 0x1;
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if (status0 & TMIO_STAT0_DATAEND)
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ctx->error |= 0x2;
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if ((status0 & flags) == flags)
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break;
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}
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}
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ctx->stat0 = sdmmc_read16(REG_SDSTATUS0);
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ctx->stat1 = sdmmc_read16(REG_SDSTATUS1);
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sdmmc_write16(REG_SDSTATUS0,0);
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sdmmc_write16(REG_SDSTATUS1,0);
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if (getSDRESP != 0) {
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ctx->ret[0] = sdmmc_read16(REG_SDRESP0) | (sdmmc_read16(REG_SDRESP1) << 16);
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ctx->ret[1] = sdmmc_read16(REG_SDRESP2) | (sdmmc_read16(REG_SDRESP3) << 16);
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ctx->ret[2] = sdmmc_read16(REG_SDRESP4) | (sdmmc_read16(REG_SDRESP5) << 16);
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ctx->ret[3] = sdmmc_read16(REG_SDRESP6) | (sdmmc_read16(REG_SDRESP7) << 16);
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}
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}
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int __attribute__((noinline)) sdmmc_sdcard_writesectors(u32 sector_no, u32 numsectors, u8 *in)
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{
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if (handleSD.isSDHC == 0)
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sector_no <<= 9;
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inittarget(&handleSD);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write16(REG_SDBLKCOUNT32,numsectors);
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#endif
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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handleSD.data = in;
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handleSD.size = numsectors << 9;
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sdmmc_send_command(&handleSD,0x52C19,sector_no);
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return geterror(&handleSD);
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}
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int __attribute__((noinline)) sdmmc_sdcard_readsectors(u32 sector_no, u32 numsectors, u8 *out)
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{
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if (handleSD.isSDHC == 0)
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sector_no <<= 9;
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inittarget(&handleSD);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write16(REG_SDBLKCOUNT32,numsectors);
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sdmmc_write16(REG_SDBLKLEN32,0x200);
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#endif
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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handleSD.data = out;
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handleSD.size = numsectors << 9;
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sdmmc_send_command(&handleSD,0x33C12,sector_no);
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return geterror(&handleSD);
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}
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int __attribute__((noinline)) sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, u8 *out)
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{
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if (handleNAND.isSDHC == 0)
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sector_no <<= 9;
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inittarget(&handleNAND);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write32(REG_SDBLKCOUNT32,numsectors);
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#else
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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#endif
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handleNAND.data = out;
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handleNAND.size = numsectors << 9;
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sdmmc_send_command(&handleNAND,0x33C12,sector_no);
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inittarget(&handleSD);
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return geterror(&handleNAND);
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}
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int __attribute__((noinline)) sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, u8 *in) //experimental
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{
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if (handleNAND.isSDHC == 0)
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sector_no <<= 9;
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inittarget(&handleNAND);
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sdmmc_write16(REG_SDSTOP,0x100);
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#ifdef DATA32_SUPPORT
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sdmmc_write32(REG_SDBLKCOUNT32,numsectors);
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#else
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sdmmc_write16(REG_SDBLKCOUNT,numsectors);
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#endif
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handleNAND.data = in;
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handleNAND.size = numsectors << 9;
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sdmmc_send_command(&handleNAND,0x52C19,sector_no);
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inittarget(&handleSD);
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return geterror(&handleNAND);
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}
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u32 calcSDSize(u8* csd, int type)
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{
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u32 result = 0;
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u8 temp = csd[0xE];
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//int temp3 = type;
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switch (type) {
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case -1:
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type = temp >> 6;
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break;
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case 0:
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{
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u32 temp = (csd[0x7] << 0x2 | csd[0x8] << 0xA | csd[0x6] >> 0x6 | (csd[0x9] & 0xF) << 0x10) & 0xFFF;
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u32 temp2 = temp * (1 << (csd[0x9] & 0xF));
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u32 retval = temp2 * (1 << (((csd[0x4] >> 7 | csd[0x5] << 1) & 7) + 2));
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result = retval >> 9;
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break;
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}
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case 1:
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result = (((csd[0x7] & 0x3F) << 0x10 | csd[0x6] << 8 | csd[0x5]) + 1) << 0xA;
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break;
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default:
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result = 0;
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break;
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}
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return result;
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}
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void InitSD()
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{
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//NAND
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handleNAND.isSDHC = 0;
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handleNAND.SDOPT = 0;
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handleNAND.res = 0;
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handleNAND.initarg = 1;
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handleNAND.clk = 0x80;
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handleNAND.devicenumber = 1;
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//SD
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handleSD.isSDHC = 0;
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handleSD.SDOPT = 0;
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handleSD.res = 0;
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handleSD.initarg = 0;
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handleSD.clk = 0x80;
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handleSD.devicenumber = 0;
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//sdmmc_mask16(0x100,0x800,0);
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//sdmmc_mask16(0x100,0x1000,0);
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//sdmmc_mask16(0x100,0x0,0x402);
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//sdmmc_mask16(0xD8,0x22,0x2);
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//sdmmc_mask16(0x100,0x2,0);
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//sdmmc_mask16(0xD8,0x22,0);
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//sdmmc_write16(0x104,0);
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//sdmmc_write16(0x108,1);
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//sdmmc_mask16(REG_SDRESET,1,0); //not in new Version -- nintendo's code does this
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//sdmmc_mask16(REG_SDRESET,0,1); //not in new Version -- nintendo's code does this
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//sdmmc_mask16(0x20,0,0x31D);
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//sdmmc_mask16(0x22,0,0x837F);
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//sdmmc_mask16(0xFC,0,0xDB);
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//sdmmc_mask16(0xFE,0,0xDB);
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////sdmmc_write16(REG_SDCLKCTL,0x20);
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////sdmmc_write16(REG_SDOPT,0x40EE);
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////sdmmc_mask16(0x02,0x3,0);
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//sdmmc_write16(REG_SDCLKCTL,0x40);
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//sdmmc_write16(REG_SDOPT,0x40EB);
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//sdmmc_mask16(0x02,0x3,0);
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//sdmmc_write16(REG_SDBLKLEN,0x200);
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//sdmmc_write16(REG_SDSTOP,0);
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*(vu16*)0x10006100 &= 0xF7FFu; //SDDATACTL32
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*(vu16*)0x10006100 &= 0xEFFFu; //SDDATACTL32
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#ifdef DATA32_SUPPORT
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*(vu16*)0x10006100 |= 0x402u; //SDDATACTL32
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#else
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*(vu16*)0x10006100 |= 0x402u; //SDDATACTL32
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#endif
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*(vu16*)0x100060D8 = (*(vu16*)0x100060D8 & 0xFFDD) | 2;
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#ifdef DATA32_SUPPORT
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*(vu16*)0x10006100 &= 0xFFFFu; //SDDATACTL32
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*(vu16*)0x100060D8 &= 0xFFDFu; //SDDATACTL
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*(vu16*)0x10006104 = 512; //SDBLKLEN32
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#else
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*(vu16*)0x10006100 &= 0xFFFDu; //SDDATACTL32
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*(vu16*)0x100060D8 &= 0xFFDDu; //SDDATACTL
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*(vu16*)0x10006104 = 0; //SDBLKLEN32
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#endif
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*(vu16*)0x10006108 = 1; //SDBLKCOUNT32
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*(vu16*)0x100060E0 &= 0xFFFEu; //SDRESET
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*(vu16*)0x100060E0 |= 1u; //SDRESET
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*(vu16*)0x10006020 |= TMIO_MASK_ALL; //SDIR_MASK0
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*(vu16*)0x10006022 |= TMIO_MASK_ALL>>16; //SDIR_MASK1
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*(vu16*)0x100060FC |= 0xDBu; //SDCTL_RESERVED7
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*(vu16*)0x100060FE |= 0xDBu; //SDCTL_RESERVED8
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*(vu16*)0x10006002 &= 0xFFFCu; //SDPORTSEL
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#ifdef DATA32_SUPPORT
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*(vu16*)0x10006024 = 0x20;
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*(vu16*)0x10006028 = 0x40EE;
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#else
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*(vu16*)0x10006024 = 0x40; //Nintendo sets this to 0x20
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*(vu16*)0x10006028 = 0x40EB; //Nintendo sets this to 0x40EE
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#endif
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*(vu16*)0x10006002 &= 0xFFFCu; ////SDPORTSEL
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*(vu16*)0x10006026 = 512; //SDBLKLEN
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*(vu16*)0x10006008 = 0; //SDSTOP
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inittarget(&handleSD);
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}
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int Nand_Init()
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{
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inittarget(&handleNAND);
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ioDelay(0xF000);
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sdmmc_send_command(&handleNAND,0,0);
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do {
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do {
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sdmmc_send_command(&handleNAND,0x10701,0x100000);
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} while ( !(handleNAND.error & 1) );
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} while((handleNAND.ret[0] & 0x80000000) == 0);
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sdmmc_send_command(&handleNAND,0x10602,0x0);
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if (handleNAND.error & 0x4) return -1;
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sdmmc_send_command(&handleNAND,0x10403,handleNAND.initarg << 0x10);
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if (handleNAND.error & 0x4) return -1;
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sdmmc_send_command(&handleNAND,0x10609,handleNAND.initarg << 0x10);
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if (handleNAND.error & 0x4) return -1;
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handleNAND.total_size = calcSDSize((u8*)&handleNAND.ret[0],0);
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handleNAND.clk = 1;
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setckl(1);
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sdmmc_send_command(&handleNAND,0x10407,handleNAND.initarg << 0x10);
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if (handleNAND.error & 0x4) return -1;
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handleNAND.SDOPT = 1;
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sdmmc_send_command(&handleNAND,0x10506,0x3B70100);
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if (handleNAND.error & 0x4) return -1;
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sdmmc_send_command(&handleNAND,0x10506,0x3B90100);
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if (handleNAND.error & 0x4) return -1;
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sdmmc_send_command(&handleNAND,0x1040D,handleNAND.initarg << 0x10);
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if (handleNAND.error & 0x4) return -1;
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sdmmc_send_command(&handleNAND,0x10410,0x200);
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if (handleNAND.error & 0x4) return -1;
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handleNAND.clk |= 0x200;
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inittarget(&handleSD);
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return 0;
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}
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int SD_Init()
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{
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inittarget(&handleSD);
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//ioDelay(0x3E8);
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ioDelay(0xF000);
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sdmmc_send_command(&handleSD,0,0);
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sdmmc_send_command(&handleSD,0x10408,0x1AA);
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//u32 temp = (handleSD.ret[0] == 0x1AA) << 0x1E;
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u32 temp = (handleSD.error & 0x1) << 0x1E;
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//int count = 0;
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u32 temp2 = 0;
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do {
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do {
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sdmmc_send_command(&handleSD,0x10437,handleSD.initarg << 0x10);
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sdmmc_send_command(&handleSD,0x10769,0x00FF8000 | temp);
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temp2 = 1;
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} while ( !(handleSD.error & 1) );
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} while((handleSD.ret[0] & 0x80000000) == 0);
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//do
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//{
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// sdmmc_send_command(&handleSD,0x10437,handleSD.initarg << 0x10);
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// sdmmc_send_command(&handleSD,0x10769,0x00FF8000 | temp);
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//
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//}
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//while(!(handleSD.ret[0] & 0x80000000));
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if(!((handleSD.ret[0] >> 30) & 1) || !temp)
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temp2 = 0;
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handleSD.isSDHC = temp2;
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//handleSD.isSDHC = (handleSD.ret[0] & 0x40000000);
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sdmmc_send_command(&handleSD,0x10602,0);
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if (handleSD.error & 0x4) return -1;
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sdmmc_send_command(&handleSD,0x10403,0);
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if (handleSD.error & 0x4) return -1;
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handleSD.initarg = handleSD.ret[0] >> 0x10;
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sdmmc_send_command(&handleSD,0x10609,handleSD.initarg << 0x10);
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if (handleSD.error & 0x4) return -1;
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handleSD.total_size = calcSDSize((u8*)&handleSD.ret[0],-1);
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handleSD.clk = 1;
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setckl(1);
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sdmmc_send_command(&handleSD,0x10507,handleSD.initarg << 0x10);
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if (handleSD.error & 0x4) return -1;
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sdmmc_send_command(&handleSD,0x10437,handleSD.initarg << 0x10);
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if (handleSD.error & 0x4) return -1;
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handleSD.SDOPT = 1;
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sdmmc_send_command(&handleSD,0x10446,0x2);
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if (handleSD.error & 0x4) return -1;
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sdmmc_send_command(&handleSD,0x1040D,handleSD.initarg << 0x10);
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if (handleSD.error & 0x4) return -1;
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sdmmc_send_command(&handleSD,0x10410,0x200);
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if (handleSD.error & 0x4) return -1;
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handleSD.clk |= 0x200;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void sdmmc_sdcard_init()
|
|
{
|
|
InitSD();
|
|
Nand_Init();
|
|
SD_Init();
|
|
}
|