c64
/
pi1541
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fixed SD card initialisation.

This commit is contained in:
Stephen White 2019-12-29 15:18:14 +11:00
parent d98a27f637
commit d3f045e7c3
3 changed files with 80 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/diskio.cpp
View File

@ -101,9 +101,9 @@ DSTATUS disk_initialize (
) )
{ {
//DSTATUS stat; //DSTATUS stat;
//int result; int result;
//switch (pdrv) { switch (pdrv) {
////case DEV_RAM : ////case DEV_RAM :
//// result = RAM_disk_initialize(); //// result = RAM_disk_initialize();
@ -111,12 +111,12 @@ DSTATUS disk_initialize (
//// return stat; //// return stat;
////case DEV_MMC : case DEV_MMC :
//// result = MMC_disk_initialize(); result = pEMMC->Initialize();
//// // translate the reslut code here // translate the reslut code here
//// return stat; break;
////case DEV_USB : ////case DEV_USB :
//// result = USB_disk_initialize(); //// result = USB_disk_initialize();
@ -124,7 +124,7 @@ DSTATUS disk_initialize (
//// // translate the reslut code here //// // translate the reslut code here
//// return stat; //// return stat;
//} }
//return STA_NOINIT; //return STA_NOINIT;
return 0; return 0;
} }

138
src/emmc.cpp
View File

@ -442,7 +442,7 @@ bool CEMMCDevice::Initialize(void)
PowerOn(); PowerOn();
//if (PowerOn() == false) //if (PowerOn() == false)
//{ //{
// DEBUG_LOG("BCM2708 controller did not power on successfully"); // DEBUG_LOG("BCM2708 controller did not power on successfully\r\n");
// return false; // return false;
//} //}
@ -461,7 +461,7 @@ bool CEMMCDevice::Initialize(void)
m_hci_ver = sdversion; m_hci_ver = sdversion;
if (m_hci_ver < 2) if (m_hci_ver < 2)
{ {
DEBUG_LOG("Only SDHCI versions >= 3.0 are supported"); DEBUG_LOG("Only SDHCI versions >= 3.0 are supported\r\n");
return false; return false;
} }
@ -556,7 +556,7 @@ bool CEMMCDevice::PowerOn(void)
{ {
u32 state = buf->data.buffer_32[0]; u32 state = buf->data.buffer_32[0];
//DEBUG_LOG("state = %x\r\n, state"); //DEBUG_LOG("state = %x\r\n, state\r\n");
//DEBUG_LOG("state = %x %x %x\r\n", buf->data.buffer_32[0], buf->data.buffer_32[1], buf->data.buffer_32[2]); //DEBUG_LOG("state = %x %x %x\r\n", buf->data.buffer_32[0], buf->data.buffer_32[1], buf->data.buffer_32[2]);
if ((state & POWER_STATE_DEVICE_DOESNT_EXIST) || ((state & 1) == POWER_STATE_OFF)) if ((state & POWER_STATE_DEVICE_DOESNT_EXIST) || ((state & 1) == POWER_STATE_OFF))
@ -660,7 +660,7 @@ u32 CEMMCDevice::GetClockDivider(u32 base_clock, u32 target_rate)
} }
else else
{ {
DEBUG_LOG("Unsupported host version"); DEBUG_LOG("Unsupported host version\r\n");
return SD_GET_CLOCK_DIVIDER_FAIL; return SD_GET_CLOCK_DIVIDER_FAIL;
} }
@ -716,7 +716,7 @@ int CEMMCDevice::ResetCmd(void)
if (TimeoutWait(EMMC_CONTROL1, SD_RESET_CMD, 0, 1000000) < 0) if (TimeoutWait(EMMC_CONTROL1, SD_RESET_CMD, 0, 1000000) < 0)
{ {
DEBUG_LOG("CMD line did not reset properly"); DEBUG_LOG("CMD line did not reset properly\r\n");
return -1; return -1;
} }
@ -731,7 +731,7 @@ int CEMMCDevice::ResetDat(void)
if (TimeoutWait(EMMC_CONTROL1, SD_RESET_DAT, 0, 1000000) < 0) if (TimeoutWait(EMMC_CONTROL1, SD_RESET_DAT, 0, 1000000) < 0)
{ {
DEBUG_LOG("DAT line did not reset properly"); DEBUG_LOG("DAT line did not reset properly\r\n");
return -1; return -1;
} }
@ -801,7 +801,7 @@ void CEMMCDevice::IssueCommandInt(u32 cmd_reg, u32 argument, int timeout)
if ((irpts & 0xffff0001) != 1) if ((irpts & 0xffff0001) != 1)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Error occured whilst waiting for command complete interrupt"); DEBUG_LOG("Error occured whilst waiting for command complete interrupt\r\n");
#endif #endif
m_last_error = irpts & 0xffff0000; m_last_error = irpts & 0xffff0000;
m_last_interrupt = irpts; m_last_interrupt = irpts;
@ -845,7 +845,7 @@ void CEMMCDevice::IssueCommandInt(u32 cmd_reg, u32 argument, int timeout)
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
if (m_blocks_to_transfer > 1) if (m_blocks_to_transfer > 1)
{ {
DEBUG_LOG("Multi block transfer"); DEBUG_LOG("Multi block transfer\r\n");
} }
#endif #endif
TimeoutWait(EMMC_INTERRUPT, wr_irpt | 0x8000, 1, timeout); TimeoutWait(EMMC_INTERRUPT, wr_irpt | 0x8000, 1, timeout);
@ -855,7 +855,7 @@ void CEMMCDevice::IssueCommandInt(u32 cmd_reg, u32 argument, int timeout)
if ((irpts &(0xffff0000 | wr_irpt)) != wr_irpt) if ((irpts &(0xffff0000 | wr_irpt)) != wr_irpt)
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("Error occured whilst waiting for data ready interrupt"); DEBUG_LOG("Error occured whilst waiting for data ready interrupt\r\n");
#endif #endif
m_last_error = irpts & 0xffff0000; m_last_error = irpts & 0xffff0000;
m_last_interrupt = irpts; m_last_interrupt = irpts;
@ -887,7 +887,7 @@ void CEMMCDevice::IssueCommandInt(u32 cmd_reg, u32 argument, int timeout)
} }
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Block transfer complete"); DEBUG_LOG("Block transfer complete\r\n");
#endif #endif
} }
@ -914,7 +914,7 @@ void CEMMCDevice::IssueCommandInt(u32 cmd_reg, u32 argument, int timeout)
&&((irpts & 0xffff0002) != 0x100002)) &&((irpts & 0xffff0002) != 0x100002))
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("Error occured whilst waiting for transfer complete interrupt"); DEBUG_LOG("Error occured whilst waiting for transfer complete interrupt\r\n");
#endif #endif
m_last_error = irpts & 0xffff0000; m_last_error = irpts & 0xffff0000;
m_last_interrupt = irpts; m_last_interrupt = irpts;
@ -937,7 +937,7 @@ void CEMMCDevice::HandleCardInterrupt(void)
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
u32 status = read32(EMMC_STATUS); u32 status = read32(EMMC_STATUS);
DEBUG_LOG("Card interrupt"); DEBUG_LOG("Card interrupt\r\n");
DEBUG_LOG("controller status: %08x\r\n", status); DEBUG_LOG("controller status: %08x\r\n", status);
#endif #endif
@ -948,7 +948,7 @@ void CEMMCDevice::HandleCardInterrupt(void)
if (FAIL) if (FAIL)
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("Unable to get card status"); DEBUG_LOG("Unable to get card status\r\n");
#endif #endif
} }
else else
@ -961,7 +961,7 @@ void CEMMCDevice::HandleCardInterrupt(void)
else else
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("no card currently selected"); DEBUG_LOG("no card currently selected\r\n");
#endif #endif
} }
} }
@ -974,7 +974,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_COMMAND_COMPLETE) if (irpts & SD_COMMAND_COMPLETE)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious command complete interrupt"); DEBUG_LOG("spurious command complete interrupt\r\n");
#endif #endif
reset_mask |= SD_COMMAND_COMPLETE; reset_mask |= SD_COMMAND_COMPLETE;
} }
@ -982,7 +982,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_TRANSFER_COMPLETE) if (irpts & SD_TRANSFER_COMPLETE)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious transfer complete interrupt"); DEBUG_LOG("spurious transfer complete interrupt\r\n");
#endif #endif
reset_mask |= SD_TRANSFER_COMPLETE; reset_mask |= SD_TRANSFER_COMPLETE;
} }
@ -990,7 +990,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_BLOCK_GAP_EVENT) if (irpts & SD_BLOCK_GAP_EVENT)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious block gap event interrupt"); DEBUG_LOG("spurious block gap event interrupt\r\n");
#endif #endif
reset_mask |= SD_BLOCK_GAP_EVENT; reset_mask |= SD_BLOCK_GAP_EVENT;
} }
@ -998,7 +998,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_DMA_INTERRUPT) if (irpts & SD_DMA_INTERRUPT)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious DMA interrupt"); DEBUG_LOG("spurious DMA interrupt\r\n");
#endif #endif
reset_mask |= SD_DMA_INTERRUPT; reset_mask |= SD_DMA_INTERRUPT;
} }
@ -1006,7 +1006,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_BUFFER_WRITE_READY) if (irpts & SD_BUFFER_WRITE_READY)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious buffer write ready interrupt"); DEBUG_LOG("spurious buffer write ready interrupt\r\n");
#endif #endif
reset_mask |= SD_BUFFER_WRITE_READY; reset_mask |= SD_BUFFER_WRITE_READY;
ResetDat(); ResetDat();
@ -1015,7 +1015,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_BUFFER_READ_READY) if (irpts & SD_BUFFER_READ_READY)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("spurious buffer read ready interrupt"); DEBUG_LOG("spurious buffer read ready interrupt\r\n");
#endif #endif
reset_mask |= SD_BUFFER_READ_READY; reset_mask |= SD_BUFFER_READ_READY;
ResetDat(); ResetDat();
@ -1024,7 +1024,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_CARD_INSERTION) if (irpts & SD_CARD_INSERTION)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("card insertion detected"); DEBUG_LOG("card insertion detected\r\n");
#endif #endif
reset_mask |= SD_CARD_INSERTION; reset_mask |= SD_CARD_INSERTION;
} }
@ -1032,7 +1032,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_CARD_REMOVAL) if (irpts & SD_CARD_REMOVAL)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("card removal detected"); DEBUG_LOG("card removal detected\r\n");
#endif #endif
reset_mask |= SD_CARD_REMOVAL; reset_mask |= SD_CARD_REMOVAL;
m_card_removal = 1; m_card_removal = 1;
@ -1041,7 +1041,7 @@ void CEMMCDevice::HandleInterrupts(void)
if (irpts & SD_CARD_INTERRUPT) if (irpts & SD_CARD_INTERRUPT)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("card interrupt detected"); DEBUG_LOG("card interrupt detected\r\n");
#endif #endif
HandleCardInterrupt(); HandleCardInterrupt();
reset_mask |= SD_CARD_INTERRUPT; reset_mask |= SD_CARD_INTERRUPT;
@ -1124,7 +1124,7 @@ bool CEMMCDevice::IssueCommand(u32 command, u32 argument, int timeout)
if (m_last_error == 0) if (m_last_error == 0)
{ {
DEBUG_LOG("TIMEOUT"); DEBUG_LOG("TIMEOUT\r\n");
} }
else else
{ {
@ -1139,7 +1139,7 @@ bool CEMMCDevice::IssueCommand(u32 command, u32 argument, int timeout)
} }
else else
{ {
DEBUG_LOG("command completed successfully"); DEBUG_LOG("command completed successfully\r\n");
} }
#endif #endif
@ -1149,7 +1149,7 @@ bool CEMMCDevice::IssueCommand(u32 command, u32 argument, int timeout)
int CEMMCDevice::CardReset(void) int CEMMCDevice::CardReset(void)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Resetting controller"); DEBUG_LOG("Resetting controller\r\n");
#endif #endif
u32 control1 = read32(EMMC_CONTROL1); u32 control1 = read32(EMMC_CONTROL1);
@ -1160,7 +1160,7 @@ int CEMMCDevice::CardReset(void)
write32(EMMC_CONTROL1, control1); write32(EMMC_CONTROL1, control1);
if (TimeoutWait(EMMC_CONTROL1, 7 << 24, 0, 1000000) < 0) if (TimeoutWait(EMMC_CONTROL1, 7 << 24, 0, 1000000) < 0)
{ {
DEBUG_LOG("Controller did not reset properly"); DEBUG_LOG("Controller did not reset properly\r\n");
return -1; return -1;
} }
@ -1171,13 +1171,13 @@ int CEMMCDevice::CardReset(void)
// Check for a valid card // Check for a valid card
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("checking for an inserted card"); DEBUG_LOG("checking for an inserted card\r\n");
#endif #endif
TimeoutWait(EMMC_STATUS, 1 << 16, 1, 500000); TimeoutWait(EMMC_STATUS, 1 << 16, 1, 500000);
u32 status_reg = read32(EMMC_STATUS); u32 status_reg = read32(EMMC_STATUS);
if ((status_reg &(1 << 16)) == 0) if ((status_reg &(1 << 16)) == 0)
{ {
DEBUG_LOG("no card inserted"); DEBUG_LOG("no card inserted\r\n");
return -1; return -1;
} }
@ -1192,13 +1192,13 @@ int CEMMCDevice::CardReset(void)
u32 base_clock = get_clock_rate(CLOCK_ID_EMMC); u32 base_clock = get_clock_rate(CLOCK_ID_EMMC);
if (base_clock == 0) if (base_clock == 0)
{ {
DEBUG_LOG("assuming clock rate to be 100MHz"); DEBUG_LOG("assuming clock rate to be 100MHz\r\n");
base_clock = 100000000; base_clock = 100000000;
} }
// Set clock rate to something slow // Set clock rate to something slow
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("setting clock rate"); DEBUG_LOG("setting clock rate\r\n");
#endif #endif
control1 = read32(EMMC_CONTROL1); control1 = read32(EMMC_CONTROL1);
control1 |= 1; // enable clock control1 |= 1; // enable clock
@ -1207,7 +1207,7 @@ int CEMMCDevice::CardReset(void)
u32 f_id = GetClockDivider(base_clock, SD_CLOCK_ID); u32 f_id = GetClockDivider(base_clock, SD_CLOCK_ID);
if (f_id == SD_GET_CLOCK_DIVIDER_FAIL) if (f_id == SD_GET_CLOCK_DIVIDER_FAIL)
{ {
DEBUG_LOG("unable to get a valid clock divider for ID frequency"); DEBUG_LOG("unable to get a valid clock divider for ID frequency\r\n");
return -1; return -1;
} }
@ -1221,7 +1221,7 @@ int CEMMCDevice::CardReset(void)
if (TimeoutWait(EMMC_CONTROL1, 2, 1, 1000000) < 0) if (TimeoutWait(EMMC_CONTROL1, 2, 1, 1000000) < 0)
{ {
DEBUG_LOG("Clock did not stabilise within 1 second"); DEBUG_LOG("Clock did not stabilise within 1 second\r\n");
return -1; return -1;
} }
@ -1232,7 +1232,7 @@ int CEMMCDevice::CardReset(void)
// Enable the SD clock // Enable the SD clock
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("enabling SD clock"); DEBUG_LOG("enabling SD clock\r\n");
#endif #endif
delay_us(2000); delay_us(2000);
control1 = read32(EMMC_CONTROL1); control1 = read32(EMMC_CONTROL1);
@ -1288,7 +1288,7 @@ int CEMMCDevice::CardReset(void)
// Send CMD0 to the card(reset to idle state) // Send CMD0 to the card(reset to idle state)
if (!IssueCommand(GO_IDLE_STATE, 0)) if (!IssueCommand(GO_IDLE_STATE, 0))
{ {
DEBUG_LOG("no CMD0 response"); DEBUG_LOG("no CMD0 response\r\n");
return -1; return -1;
} }
@ -1297,7 +1297,7 @@ int CEMMCDevice::CardReset(void)
// Voltage supplied = 0x1 = 2.7-3.6V(standard) // Voltage supplied = 0x1 = 2.7-3.6V(standard)
// Check pattern = 10101010b(as per PLSS 4.3.13) = 0xAA // Check pattern = 10101010b(as per PLSS 4.3.13) = 0xAA
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Note a timeout error on the following command(CMD8) is normal and expected if the SD card version is less than 2.0"); DEBUG_LOG("Note a timeout error on the following command(CMD8) is normal and expected if the SD card version is less than 2.0\r\n");
#endif #endif
IssueCommand(SEND_IF_COND, 0x1aa); IssueCommand(SEND_IF_COND, 0x1aa);
int v2_later = 0; int v2_later = 0;
@ -1324,7 +1324,7 @@ int CEMMCDevice::CardReset(void)
{ {
if ((m_last_r0 & 0xfff) != 0x1aa) if ((m_last_r0 & 0xfff) != 0x1aa)
{ {
DEBUG_LOG("unusable card"); DEBUG_LOG("unusable card\r\n");
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("CMD8 response %08x\r\n", m_last_r0); DEBUG_LOG("CMD8 response %08x\r\n", m_last_r0);
#endif #endif
@ -1340,7 +1340,7 @@ int CEMMCDevice::CardReset(void)
// Here we are supposed to check the response to CMD5(HCSS 3.6) // Here we are supposed to check the response to CMD5(HCSS 3.6)
// It only returns if the card is a SDIO card // It only returns if the card is a SDIO card
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Note that a timeout error on the following command(CMD5) is normal and expected if the card is not a SDIO card."); DEBUG_LOG("Note that a timeout error on the following command(CMD5) is normal and expected if the card is not a SDIO card.\r\n");
#endif #endif
IssueCommand(IO_SET_OP_COND, 0, 10000); IssueCommand(IO_SET_OP_COND, 0, 10000);
if (!TIMEOUT) if (!TIMEOUT)
@ -1356,7 +1356,7 @@ int CEMMCDevice::CardReset(void)
} }
else else
{ {
DEBUG_LOG("SDIO card detected - not currently supported"); DEBUG_LOG("SDIO card detected - not currently supported\r\n");
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("CMD5 returned %08x\r\n", m_last_r0); DEBUG_LOG("CMD5 returned %08x\r\n", m_last_r0);
#endif #endif
@ -1367,11 +1367,11 @@ int CEMMCDevice::CardReset(void)
// Call an inquiry ACMD41(voltage window = 0) to get the OCR // Call an inquiry ACMD41(voltage window = 0) to get the OCR
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("sending inquiry ACMD41"); DEBUG_LOG("sending inquiry ACMD41\r\n");
#endif #endif
if (!IssueCommand(ACMD(41), 0)) if (!IssueCommand(ACMD(41), 0))
{ {
DEBUG_LOG("Inquiry ACMD41 failed"); DEBUG_LOG("Inquiry ACMD41 failed\r\n");
return -1; return -1;
} }
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
@ -1403,7 +1403,7 @@ int CEMMCDevice::CardReset(void)
if (!IssueCommand(ACMD(41), 0x00ff8000 | v2_flags)) if (!IssueCommand(ACMD(41), 0x00ff8000 | v2_flags))
{ {
DEBUG_LOG("Error issuing ACMD41"); DEBUG_LOG("Error issuing ACMD41\r\n");
return -1; return -1;
} }
@ -1426,7 +1426,7 @@ int CEMMCDevice::CardReset(void)
{ {
// Card is still busy // Card is still busy
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Card is busy, retrying"); DEBUG_LOG("Card is busy, retrying\r\n");
#endif #endif
delay_us(500000); delay_us(500000);
} }
@ -1447,7 +1447,7 @@ int CEMMCDevice::CardReset(void)
if (m_card_supports_18v) if (m_card_supports_18v)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("switching to 1.8V mode"); DEBUG_LOG("switching to 1.8V mode\r\n");
#endif #endif
// As per HCSS 3.6.1 // As per HCSS 3.6.1
@ -1455,7 +1455,7 @@ int CEMMCDevice::CardReset(void)
if (!IssueCommand(VOLTAGE_SWITCH, 0)) if (!IssueCommand(VOLTAGE_SWITCH, 0))
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("error issuing VOLTAGE_SWITCH"); DEBUG_LOG("error issuing VOLTAGE_SWITCH\r\n");
#endif #endif
m_failed_voltage_switch = 1; m_failed_voltage_switch = 1;
PowerOff(); PowerOff();
@ -1474,7 +1474,7 @@ int CEMMCDevice::CardReset(void)
if (dat30 != 0) if (dat30 != 0)
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("DAT[3:0] did not settle to 0"); DEBUG_LOG("DAT[3:0] did not settle to 0\r\n");
#endif #endif
m_failed_voltage_switch = 1; m_failed_voltage_switch = 1;
PowerOff(); PowerOff();
@ -1495,7 +1495,7 @@ int CEMMCDevice::CardReset(void)
if (((control0 >> 8) & 1) == 0) if (((control0 >> 8) & 1) == 0)
{ {
#ifdef EMMC_DEBUG #ifdef EMMC_DEBUG
DEBUG_LOG("controller did not keep 1.8V signal enable high"); DEBUG_LOG("controller did not keep 1.8V signal enable high\r\n");
#endif #endif
m_failed_voltage_switch = 1; m_failed_voltage_switch = 1;
PowerOff(); PowerOff();
@ -1525,14 +1525,14 @@ int CEMMCDevice::CardReset(void)
} }
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("voltage switch complete"); DEBUG_LOG("voltage switch complete\r\n");
#endif #endif
} }
// Send CMD2 to get the cards CID // Send CMD2 to get the cards CID
if (!IssueCommand(ALL_SEND_CID, 0)) if (!IssueCommand(ALL_SEND_CID, 0))
{ {
DEBUG_LOG("error sending ALL_SEND_CID"); DEBUG_LOG("error sending ALL_SEND_CID\r\n");
return -1; return -1;
} }
@ -1548,7 +1548,7 @@ int CEMMCDevice::CardReset(void)
// Send CMD3 to enter the data state // Send CMD3 to enter the data state
if (!IssueCommand(SEND_RELATIVE_ADDR, 0)) if (!IssueCommand(SEND_RELATIVE_ADDR, 0))
{ {
DEBUG_LOG("error sending SEND_RELATIVE_ADDR"); DEBUG_LOG("error sending SEND_RELATIVE_ADDR\r\n");
return -1; return -1;
} }
@ -1567,28 +1567,28 @@ int CEMMCDevice::CardReset(void)
if (crc_error) if (crc_error)
{ {
DEBUG_LOG("CRC error"); DEBUG_LOG("CRC error\r\n");
return -1; return -1;
} }
if (illegal_cmd) if (illegal_cmd)
{ {
DEBUG_LOG("illegal command"); DEBUG_LOG("illegal command\r\n");
return -1; return -1;
} }
if (error) if (error)
{ {
DEBUG_LOG("generic error"); DEBUG_LOG("generic error\r\n");
return -1; return -1;
} }
if (!ready) if (!ready)
{ {
DEBUG_LOG("not ready for data"); DEBUG_LOG("not ready for data\r\n");
return -1; return -1;
} }
@ -1600,7 +1600,7 @@ int CEMMCDevice::CardReset(void)
// Now select the card(toggles it to transfer state) // Now select the card(toggles it to transfer state)
if (!IssueCommand(SELECT_CARD, m_card_rca << 16)) if (!IssueCommand(SELECT_CARD, m_card_rca << 16))
{ {
DEBUG_LOG("error sending CMD7"); DEBUG_LOG("error sending CMD7\r\n");
return -1; return -1;
} }
@ -1620,7 +1620,7 @@ int CEMMCDevice::CardReset(void)
{ {
if (!IssueCommand(SET_BLOCKLEN, SD_BLOCK_SIZE)) if (!IssueCommand(SET_BLOCKLEN, SD_BLOCK_SIZE))
{ {
DEBUG_LOG("Error sending SET_BLOCKLEN"); DEBUG_LOG("Error sending SET_BLOCKLEN\r\n");
return -1; return -1;
} }
@ -1638,7 +1638,7 @@ int CEMMCDevice::CardReset(void)
m_block_size = SD_BLOCK_SIZE; m_block_size = SD_BLOCK_SIZE;
if (FAIL) if (FAIL)
{ {
DEBUG_LOG("Error sending SEND_SCR"); DEBUG_LOG("Error sending SEND_SCR\r\n");
return -1; return -1;
} }
@ -1689,7 +1689,7 @@ int CEMMCDevice::CardReset(void)
// See HCSS 3.4 for the algorithm // See HCSS 3.4 for the algorithm
#ifdef SD_4BIT_DATA #ifdef SD_4BIT_DATA
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Switching to 4-bit data mode"); DEBUG_LOG("Switching to 4-bit data mode\r\n");
#endif #endif
// Disable card interrupt in host // Disable card interrupt in host
@ -1700,7 +1700,7 @@ int CEMMCDevice::CardReset(void)
// Send ACMD6 to change the card's bit mode // Send ACMD6 to change the card's bit mode
if (!IssueCommand(SET_BUS_WIDTH, 2)) if (!IssueCommand(SET_BUS_WIDTH, 2))
{ {
DEBUG_LOG("Switch to 4-bit data mode failed"); DEBUG_LOG("Switch to 4-bit data mode failed\r\n");
} }
else else
{ {
@ -1713,7 +1713,7 @@ int CEMMCDevice::CardReset(void)
write32(EMMC_IRPT_MASK, old_irpt_mask); write32(EMMC_IRPT_MASK, old_irpt_mask);
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("switch to 4-bit complete"); DEBUG_LOG("switch to 4-bit complete\r\n");
#endif #endif
} }
#endif #endif
@ -1748,7 +1748,7 @@ int CEMMCDevice::EnsureDataMode(void)
if (!IssueCommand(SEND_STATUS, m_card_rca << 16)) if (!IssueCommand(SEND_STATUS, m_card_rca << 16))
{ {
DEBUG_LOG("EnsureDataMode() error sending CMD13"); DEBUG_LOG("EnsureDataMode() error sending CMD13\r\n");
m_card_rca = 0; m_card_rca = 0;
return -1; return -1;
@ -1764,7 +1764,7 @@ int CEMMCDevice::EnsureDataMode(void)
// Currently in the stand-by state - select it // Currently in the stand-by state - select it
if (!IssueCommand(SELECT_CARD, m_card_rca << 16)) if (!IssueCommand(SELECT_CARD, m_card_rca << 16))
{ {
DEBUG_LOG("EnsureDataMode() no response from CMD17"); DEBUG_LOG("EnsureDataMode() no response from CMD17\r\n");
m_card_rca = 0; m_card_rca = 0;
return -1; return -1;
@ -1775,7 +1775,7 @@ int CEMMCDevice::EnsureDataMode(void)
// In the data transfer state - cancel the transmission // In the data transfer state - cancel the transmission
if (!IssueCommand(STOP_TRANSMISSION, 0)) if (!IssueCommand(STOP_TRANSMISSION, 0))
{ {
DEBUG_LOG("EnsureDataMode() no response from CMD12"); DEBUG_LOG("EnsureDataMode() no response from CMD12\r\n");
m_card_rca = 0; m_card_rca = 0;
return -1; return -1;
@ -1798,11 +1798,11 @@ int CEMMCDevice::EnsureDataMode(void)
if (cur_state != 4) if (cur_state != 4)
{ {
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("EnsureDataMode() rechecking status: "); DEBUG_LOG("EnsureDataMode() rechecking status: \r\n");
#endif #endif
if (!IssueCommand(SEND_STATUS, m_card_rca << 16)) if (!IssueCommand(SEND_STATUS, m_card_rca << 16))
{ {
DEBUG_LOG("EnsureDataMode() no response from CMD13"); DEBUG_LOG("EnsureDataMode() no response from CMD13\r\n");
m_card_rca = 0; m_card_rca = 0;
return -1; return -1;
@ -1890,11 +1890,11 @@ int CEMMCDevice::DoDataCommand(int is_write, u8 *buf, size_t buf_size, u32 block
if (++retry_count < max_retries) if (++retry_count < max_retries)
{ {
DEBUG_LOG("Retrying"); DEBUG_LOG("Retrying\r\n");
} }
else else
{ {
DEBUG_LOG("Giving up"); DEBUG_LOG("Giving up\r\n");
} }
} }
} }
@ -1947,7 +1947,7 @@ int CEMMCDevice::DoRead(u8 *buf, size_t buf_size, u32 block_no)
//} //}
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Data read successful"); DEBUG_LOG("Data read successful\r\n");
#endif #endif
return buf_size; return buf_size;
@ -1971,7 +1971,7 @@ int CEMMCDevice::DoWrite(u8 *buf, size_t buf_size, u32 block_no)
} }
#ifdef EMMC_DEBUG2 #ifdef EMMC_DEBUG2
DEBUG_LOG("Data write successful"); DEBUG_LOG("Data write successful\r\n");
#endif #endif
return buf_size; return buf_size;

7
src/main.cpp
View File

@ -1810,12 +1810,13 @@ extern "C"
m_EMMC.Initialize(); m_EMMC.Initialize();
disk_setEMM(&m_EMMC);
f_mount(&fileSystemSD, "SD:", 1);
#if not defined(EXPERIMENTALZERO) #if not defined(EXPERIMENTALZERO)
RPI_AuxMiniUartInit(115200, 8); RPI_AuxMiniUartInit(115200, 8);
#endif #endif
disk_setEMM(&m_EMMC);
f_mount(&fileSystemSD, "SD:", 1);
LoadOptions(); LoadOptions();
InitialiseHardware(); InitialiseHardware();