arch/arm-native/soc/broadcom/2708/sdcard/sdcard_bcm2708init.c

   1 /*
   2     Copyright © 2013-2015, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #define DEBUG 0
   7 #include <aros/debug.h>
   8
   9 #include <proto/exec.h>
  10 #include <proto/mbox.h>
  11 #include <proto/kernel.h>
  12
  13 #include <hardware/mmc.h>
  14 #include <hardware/sdhc.h>
  15
  16 #include "sdcard_intern.h"
  17 #include "timer.h"
  18
  19 #include <hardware/arasan.h>
  20 #include <hardware/videocore.h>
  21
  22 APTR            MBoxBase;
  23 IPTR            __arm_periiobase __attribute__((used)) = 0 ;
  24
  25 static int FNAME_BCMSDC(BCM2708Init)(struct SDCardBase *SDCardBase)
  26 {
  27     struct sdcard_Bus   *__BCM2708Bus;
  28     int                 retVal = FALSE;
  29     unsigned int *MBoxMessage_ = AllocMem(8*4+16, MEMF_PUBLIC | MEMF_CLEAR);
  30     unsigned int *MBoxMessage = (unsigned int *)((((IPTR)MBoxMessage_) + 15) & ~15);
  31
  32     DINIT(bug("[SDCard--] %s()\n", __PRETTY_FUNCTION__));
  33
  34     __arm_periiobase = KrnGetSystemAttr(KATTR_PeripheralBase);
  35
  36     if ((MBoxBase = OpenResource("mbox.resource")) == NULL)
  37     {
  38         bug("[SDCard--] %s: Failed to open mbox.resource\n", __PRETTY_FUNCTION__);
  39         goto bcminit_fail;
  40     }
  41
  42     MBoxMessage[0] = 8 * 4;
  43     MBoxMessage[1] = VCTAG_REQ;
  44     MBoxMessage[2] = VCTAG_GETPOWER;
  45     MBoxMessage[3] = 8;
  46     MBoxMessage[4] = 4;
  47     MBoxMessage[5] = VCPOWER_SDHCI;
  48     MBoxMessage[6] = 0;
  49
  50     MBoxMessage[7] = 0; // terminate tag
  51
  52     MBoxWrite((APTR)VCMB_BASE, VCMB_PROPCHAN, MBoxMessage);
  53     if (MBoxRead((APTR)VCMB_BASE, VCMB_PROPCHAN) != MBoxMessage)
  54     {
  55         DINIT(bug("[SDCard--] %s: Failed to read controller's Power state\n", __PRETTY_FUNCTION__));
  56         goto bcminit_fail;
  57     }
  58
  59     if (!(MBoxMessage[6] & VCPOWER_STATE_ON))
  60     {
  61         DINIT(bug("[SDCard--] %s: Powering on Arasan SDHCI controller...\n", __PRETTY_FUNCTION__));
  62
  63         MBoxMessage[0] = 8 * 4;
  64         MBoxMessage[1] = VCTAG_REQ;
  65         MBoxMessage[2] = VCTAG_SETPOWER;
  66         MBoxMessage[3] = 8;
  67         MBoxMessage[4] = 8;
  68         MBoxMessage[5] = VCPOWER_SDHCI;
  69         MBoxMessage[6] = VCPOWER_STATE_ON | VCPOWER_STATE_WAIT;
  70
  71         MBoxMessage[7] = 0; // terminate tag
  72
  73         MBoxWrite((APTR)VCMB_BASE, VCMB_PROPCHAN, MBoxMessage);
  74         if ((MBoxRead((APTR)VCMB_BASE, VCMB_PROPCHAN) != MBoxMessage) || (!(MBoxMessage[6] & VCPOWER_STATE_ON)))
  75         {
  76             DINIT(bug("[SDCard--] %s: Failed to power on controller\n", __PRETTY_FUNCTION__));
  77             goto bcminit_fail;
  78         }
  79     }
  80
  81     MBoxMessage[0] = 8 * 4;
  82     MBoxMessage[1] = VCTAG_REQ;
  83     MBoxMessage[2] = VCTAG_GETCLKRATE;
  84     MBoxMessage[3] = 8;
  85     MBoxMessage[4] = 4;
  86     MBoxMessage[5] = VCCLOCK_SDHCI;
  87     MBoxMessage[6] = 0;
  88
  89     MBoxMessage[7] = 0; // terminate tag
  90
  91     MBoxWrite((APTR)VCMB_BASE, VCMB_PROPCHAN, MBoxMessage);
  92     if (MBoxRead((APTR)VCMB_BASE, VCMB_PROPCHAN) != MBoxMessage)
  93     {
  94         DINIT(bug("[SDCard--] %s: Failed to determine Max SDHC Clock\n", __PRETTY_FUNCTION__));
  95         goto bcminit_fail;
  96     }
  97
  98     if ((__BCM2708Bus = AllocPooled(SDCardBase->sdcard_MemPool, sizeof(struct sdcard_Bus))) != NULL)
  99     {
 100         __BCM2708Bus->sdcb_DeviceBase = SDCardBase;
 101         __BCM2708Bus->sdcb_IOBase = (APTR)ARASAN_BASE;
 102         __BCM2708Bus->sdcb_BusIRQ = IRQ_VC_ARASANSDIO;
 103
 104         __BCM2708Bus->sdcb_ClockMax = MBoxMessage[6];
 105         __BCM2708Bus->sdcb_ClockMin = BCM2708SDCLOCK_MIN;
 106
 107         __BCM2708Bus->sdcb_LEDCtrl = FNAME_BCMSDCBUS(BCMLEDCtrl);
 108         __BCM2708Bus->sdcb_IOReadByte = FNAME_BCMSDCBUS(BCMMMIOReadByte);
 109         __BCM2708Bus->sdcb_IOReadWord = FNAME_BCMSDCBUS(BCMMMIOReadWord);
 110         __BCM2708Bus->sdcb_IOReadLong = FNAME_BCMSDCBUS(BCMMMIOReadLong);
 111
 112         __BCM2708Bus->sdcb_IOWriteByte = FNAME_BCMSDCBUS(BCMMMIOWriteByte);
 113         __BCM2708Bus->sdcb_IOWriteWord = FNAME_BCMSDCBUS(BCMMMIOWriteWord);
 114         __BCM2708Bus->sdcb_IOWriteLong = FNAME_BCMSDCBUS(BCMMMIOWriteLong);
 115
 116         if ((__BCM2708Bus->sdcb_BusUnits = AllocPooled(SDCardBase->sdcard_MemPool, sizeof(struct sdcard_BusUnits))) != NULL)
 117         {
 118             ObtainSemaphore(&SDCardBase->sdcard_BusSem);
 119             __BCM2708Bus->sdcb_BusUnits->sdcbu_UnitBase = SDCardBase->sdcard_TotalBusUnits;
 120             __BCM2708Bus->sdcb_BusUnits->sdcbu_UnitMax = BCM2708SDUNIT_MAX;
 121             SDCardBase->sdcard_TotalBusUnits += __BCM2708Bus->sdcb_BusUnits->sdcbu_UnitMax;
 122             __BCM2708Bus->sdcb_BusNum = SDCardBase->sdcard_BusCnt++;
 123             ReleaseSemaphore(&SDCardBase->sdcard_BusSem);
 124
 125             DINIT(bug("[SDCard--] %s: Bus #%02u - %u Unit(s) starting from %02u\n", __PRETTY_FUNCTION__,
 126                             __BCM2708Bus->sdcb_BusNum,
 127                             __BCM2708Bus->sdcb_BusUnits->sdcbu_UnitMax,
 128                             __BCM2708Bus->sdcb_BusUnits->sdcbu_UnitBase));
 129
 130             __BCM2708Bus->sdcb_SectorShift = 9;
 131
 132             DINIT(bug("[SDCard--] %s: Reseting SDHCI...\n", __PRETTY_FUNCTION__));
 133
 134             FNAME_SDCBUS(SoftReset)(SDHCI_RESET_ALL, __BCM2708Bus);
 135
 136             DINIT(bug("[SDCard--] %s: SDHC Max Clock Rate : %dMHz\n", __PRETTY_FUNCTION__, __BCM2708Bus->sdcb_ClockMax / 1000000));
 137             DINIT(bug("[SDCard--] %s: SDHC Min Clock Rate : %dHz (hardcoded)\n", __PRETTY_FUNCTION__, __BCM2708Bus->sdcb_ClockMin));
 138
 139             __BCM2708Bus->sdcb_Version = FNAME_BCMSDCBUS(BCMMMIOReadWord)(SDHCI_HOST_VERSION, __BCM2708Bus);
 140             __BCM2708Bus->sdcb_Capabilities = FNAME_BCMSDCBUS(BCMMMIOReadLong)(SDHCI_CAPABILITIES, __BCM2708Bus);
 141             __BCM2708Bus->sdcb_Quirks = AB_Quirk_MissingCapabilities|AF_Quirk_AtomicTMAndCMD;
 142             __BCM2708Bus->sdcb_Power = MMC_VDD_165_195 | MMC_VDD_320_330 | MMC_VDD_330_340;
 143
 144             DINIT(bug("[SDCard--] %s: SDHCI Host Vers      : %d [SD Host Spec %d]\n", __PRETTY_FUNCTION__, ((__BCM2708Bus->sdcb_Version & 0xFF00) >> 8), (__BCM2708Bus->sdcb_Version & 0xFF) + 1));
 145             DINIT(bug("[SDCard--] %s: SDHCI Capabilities   : 0x%08x\n", __PRETTY_FUNCTION__, __BCM2708Bus->sdcb_Capabilities));
 146             DINIT(bug("[SDCard--] %s: SDHCI Voltages       : 0x%08x (hardcoded)\n", __PRETTY_FUNCTION__, __BCM2708Bus->sdcb_Power));
 147
 148             __BCM2708Bus->sdcb_Private = (IPTR)sdcard_CurrentTime();
 149
 150             FNAME_SDC(RegisterBus)(__BCM2708Bus, SDCardBase);
 151
 152             retVal = TRUE;
 153         }
 154         else
 155         {
 156             FreePooled(SDCardBase->sdcard_MemPool, __BCM2708Bus, sizeof(struct sdcard_Bus));
 157         }
 158     }
 159 bcminit_fail:
 160
 161     if (MBoxMessage_)
 162         FreeMem(MBoxMessage_, 8*4+16);
 163
 164     return retVal;
 165 }
 166
 167 ADD2INITLIB(FNAME_BCMSDC(BCM2708Init), SDCARD_BUSINITPRIO)