ref: b9efa5bad11f7ada9416bab6f63ca4dd69b520c5
parent: c7995ec2fca61ff3dcd10b2c233d6a45e66ad5a2
author: glenda <[email protected]>
date: Sun Jun 19 18:56:08 EDT 2022
emmc update
--- a/v1/9/emmc.diff
+++ b/v1/9/emmc.diff
@@ -1,246 +1,0 @@
-diff 90a08cf1fda8eaf4afe98f74a7572fb36b7ef369 uncommitted
---- a/sys/src/9/bcm/emmc.c
-+++ b/sys/src/9/bcm/emmc.c
-@@ -33,6 +33,7 @@
-
- GoIdle = 0, /* mmc/sdio go idle state */
- MMCSelect = 7, /* mmc/sd card select command */
-+ Sendextcsd = 8, /* mmc ext_csd, sd send_if_cond */
- Setbuswidth = 6, /* mmc/sd set bus width command */
-
- Switchfunc = 6, /* mmc/sd switch function command */
-@@ -141,6 +142,7 @@
-
- static int cmdinfo[64] = {- [0] Ixchken,
-+[1] Resp48,
- [2] Resp136,
- [3] Resp48 | Ixchken | Crcchken,
- [5] Resp48,
-@@ -166,6 +168,7 @@
-
- struct Ctlr {- Rendez r;
-+ Rendez cardr;
- int fastclock;
- ulong extclk;
- int appcmd;
-@@ -303,6 +306,11 @@
- */
- if(cmd == Switchfunc && !emmc.appcmd)
- c |= Isdata|Card2host;
-+ /*
-+ * CMD8 can be SD_SEND_IF_COND or SEND_EXT_CSD depending on arg
-+ */
-+ if(cmd == Sendextcsd && arg == 0)
-+ c |= Isdata|Card2host;
- if(cmd == IORWextended){- if(arg & (1<<31))
- c |= Host2card;
-@@ -318,8 +326,7 @@
- WR(Control0, r[Control0] & ~(Dwidth4|Hispeed));
- emmcclk(Initfreq);
- }
-- if((r[Status] & Datinhibit) &&
-- ((c & Isdata) || (c & Respmask) == Resp48busy)){-+ if(r[Status] & Cmdinhibit){- print("emmccmd: need to reset Cmdinhibit intr %ux stat %ux\n",- r[Interrupt], r[Status]);
- WR(Control1, r[Control1] | Srstcmd);
-@@ -345,9 +352,9 @@
- WR(Interrupt, i);
- }
- WR(Cmdtm, c);
-- now = MACHP(0)->ticks;
-+ now = m->ticks;
- while(((i=r[Interrupt])&(Cmddone|Err)) == 0)
-- if(MACHP(0)->ticks - now > HZ)
-+ if(m->ticks-now > HZ)
- break;
- if((i&(Cmddone|Err)) != Cmddone){- if((i&~(Err|Cardintr)) != Ctoerr)
-@@ -494,6 +501,8 @@
- i = r[Interrupt];
- if(i&(Datadone|Err))
- wakeup(&emmc.r);
-+ if(i&Cardintr)
-+ wakeup(&emmc.cardr);
- WR(Irpten, r[Irpten] & ~i);
- }
-
---- a/sys/src/9/port/sdmmc.c
-+++ b/sys/src/9/port/sdmmc.c
-@@ -23,6 +23,8 @@
- enum {- Inittimeout = 15,
- Multiblock = 1,
-+ MMC_TYPE_SD = 1,
-+ MMC_TYPE_MMC = 2,
-
- /* Commands */
- GO_IDLE_STATE = 0,
-@@ -31,6 +33,7 @@
- SWITCH_FUNC = 6,
- SELECT_CARD = 7,
- SD_SEND_IF_COND = 8,
-+ SEND_EXT_CSD = 8,
- SEND_CSD = 9,
- STOP_TRANSMISSION= 12,
- SEND_STATUS = 13,
-@@ -42,6 +45,7 @@
- APP_CMD = 55, /* prefix for following app-specific commands */
- SET_BUS_WIDTH = 6,
- SD_SEND_OP_COND = 41,
-+ MMC_SEND_OP_COND = 1,
-
- /* Command arguments */
- /* SD_SEND_IF_COND */
-@@ -81,8 +85,12 @@
- u32int csd[4];
-
- int retry;
-+
-+ uchar type;
- };
-
-+SDio *sdcardlink;
-+
- extern SDifc sdmmcifc;
- extern SDio sdio;
-
-@@ -104,9 +112,14 @@
- }
-
- static void
--identify(SDunit *unit, u32int *csd)
-+identify(SDunit *unit)
- {- uint csize, mult;
-+ Ctlr *ctl = unit->dev->ctlr;
-+ u32int *csd = ctl->csd;
-+ SDio *io = ctl->io;
-+ uchar ext_csd[512];
-+ u32int r[4];
-
- unit->secsize = 1 << CSD(83, 80);
- switch(CSD(127, 126)){-@@ -119,6 +132,22 @@
- csize = CSD(69, 48);
- unit->sectors = (csize+1) * 0x80000LL / unit->secsize;
- break;
-+ case 3:
-+ if(CSD(125, 122) < 4) { /* no EXT_CSD */-+ print("sdmmc: no ext_csd\n"); -+ break;
-+ }
-+ if(waserror()){-+ print("sdmmc: send_ext_csd error\n");-+ nexterror();
-+ }
-+ io->iosetup(0, ext_csd, 512, 1);
-+ io->cmd(SEND_EXT_CSD, 0, r);
-+ io->io(0, ext_csd, 512);
-+ unit->sectors = ext_csd[212] | (ext_csd[213]<<8) |
-+ (ext_csd[214]<<16) | (ext_csd[215]<<24);
-+ poperror();
-+ break;
- }
- if(unit->secsize == 1024){- unit->sectors <<= 1;
-@@ -132,7 +161,9 @@
- SDev *sdev;
- Ctlr *ctl;
-
-- if(sdio.init() < 0)
-+ if(sdcardlink == nil)
-+ sdcardlink = &sdio;
-+ if(sdcardlink->init() < 0)
- return nil;
- sdev = malloc(sizeof(SDev));
- if(sdev == nil)
-@@ -147,7 +178,7 @@
- sdev->nunit = 1;
- sdev->ctlr = ctl;
- ctl->dev = sdev;
-- ctl->io = &sdio;
-+ ctl->io = sdcardlink;
- return sdev;
- }
-
-@@ -213,20 +244,43 @@
- hcs = Hcs;
- poperror();
- }
-- for(i = 0; i < Inittimeout; i++){-- tsleep(&up->sleep, return0, nil, 100);
-- io->cmd(APP_CMD, 0, r);
-- io->cmd(SD_SEND_OP_COND, hcs|V3_3, r);
-- if(r[0] & Powerup)
-- break;
-+ if(!waserror()){-+ for(i = 0; i < Inittimeout; i++){-+ tsleep(&up->sleep, return0, nil, 100);
-+ io->cmd(APP_CMD, 0, r);
-+ io->cmd(SD_SEND_OP_COND, hcs|V3_3, r);
-+ if(r[0] & Powerup){-+ ctl->type = MMC_TYPE_SD;
-+ break;
-+ }
-+ }
-+ }else{-+ io->cmd(GO_IDLE_STATE, 0, r);
-+ ctl->ocr = (1 << 30);
-+ for(i = 0; i < Inittimeout; i++){-+ tsleep(&up->sleep, return0, nil, 100);
-+ io->cmd(MMC_SEND_OP_COND, ctl->ocr, r);
-+ if(r[0] & Powerup){-+ ctl->type = MMC_TYPE_MMC;
-+ break;
-+ }
-+ ctl->ocr = r[0] | (1 << 30);
-+ }
- }
-+ if(ctl->type == 0)
-+ return 3;
- if(i == Inittimeout)
- return 2;
- ctl->ocr = r[0];
- io->cmd(ALL_SEND_CID, 0, r);
- memmove(ctl->cid, r, sizeof ctl->cid);
-- io->cmd(SEND_RELATIVE_ADDR, 0, r);
-- ctl->rca = r[0]>>16;
-+ if(ctl->type == MMC_TYPE_SD){-+ io->cmd(SEND_RELATIVE_ADDR, 0, r);
-+ ctl->rca = r[0]>>16;
-+ }else if(ctl->type == MMC_TYPE_MMC){-+ ctl->rca = 1;
-+ io->cmd(SEND_RELATIVE_ADDR, ctl->rca<<Rcashift, r);
-+ }
- io->cmd(SEND_CSD, ctl->rca<<Rcashift, r);
- memmove(ctl->csd, r, sizeof ctl->csd);
- return 1;
-@@ -275,15 +329,17 @@
- poperror();
- return 2;
- }
-- identify(unit, ctl->csd);
- io->cmd(SELECT_CARD, ctl->rca<<Rcashift, r);
-+ identify(unit);
- io->cmd(SET_BLOCKLEN, unit->secsize, r);
-- io->cmd(APP_CMD, ctl->rca<<Rcashift, r);
-- io->cmd(SET_BUS_WIDTH, Width4, r);
-- if(io->highspeed){-- if(!waserror()){-- mmcswitchfunc(io, Hispeed|Setfunc);
-- poperror();
-+ if(ctl->type == MMC_TYPE_SD){-+ io->cmd(APP_CMD, ctl->rca<<Rcashift, r);
-+ io->cmd(SET_BUS_WIDTH, Width4, r);
-+ if(io->highspeed){-+ if(!waserror()){-+ mmcswitchfunc(io, Hispeed|Setfunc);
-+ poperror();
-+ }
- }
- }
- poperror();
--- a/v1/9/emmc/bcm/emmc.c
+++ b/v1/9/emmc/bcm/emmc.c
@@ -352,9 +352,9 @@
WR(Interrupt, i);
}
WR(Cmdtm, c);
- now = m->ticks;
+ now = MACHP(0)->ticks;
while(((i=r[Interrupt])&(Cmddone|Err)) == 0)
- if(m->ticks-now > HZ)
+ if(MACHP(0)->ticks - now > HZ)
break;
if((i&(Cmddone|Err)) != Cmddone){if((i&~(Err|Cardintr)) != Ctoerr)
--- a/v1/9/emmc/port/sdmmc.c
+++ b/v1/9/emmc/port/sdmmc.c
@@ -254,6 +254,7 @@
break;
}
}
+ poperror();
}else{io->cmd(GO_IDLE_STATE, 0, r);
ctl->ocr = (1 << 30);
@@ -388,7 +389,7 @@
error(Echange);
buf = data;
len = unit->secsize;
- if(Multiblock){+ if(Multiblock && (!write || !io->nomultiwrite)){b = bno;
tries = 0;
while(waserror())