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2018-04-10hw/sd/bcm2835_sdhost: Don't raise spurious interruptsPeter Maydell1-20/+26
The Linux bcm2835_sdhost driver doesn't work on QEMU, because our model raises spurious data interrupts. Our function bcm2835_sdhost_fifo_run() will flag an interrupt any time it is called with s->datacnt == 0, even if the host hasn't actually issued a data read or write command yet. This means that the driver gets a spurious data interrupt as soon as it enables IRQs and then does something else that causes us to call the fifo_run routine, like writing to SDHCFG, and before it does the write to SDCMD to issue the read. The driver's IRQ handler then spins forever complaining that there's no data and the SD controller isn't in a state where there's going to be any data: [ 41.040738] sdhost-bcm2835 3f202000.mmc: fsm 1, hsts 00000000 [ 41.042059] sdhost-bcm2835 3f202000.mmc: fsm 1, hsts 00000000 (continues forever). Move the interrupt flag setting to more plausible places: * for BUSY, raise this as soon as a BUSYWAIT command has executed * for DATA, raise this when the FIFO has any space free (for a write) or any data in it (for a read) * for BLOCK, raise this when the data count is 0 and we've actually done some reading or writing This is pure guesswork since the documentation for this hardware is not public, but it is sufficient to get the Linux bcm2835_sdhost driver to work. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20180319161556.16446-3-peter.maydell@linaro.org
2018-04-10hw/sd/bcm2835_sdhost: Add tracepointsPeter Maydell2-0/+16
Add some tracepoints to the bcm2835_sdhost driver, to assist debugging. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20180319161556.16446-2-peter.maydell@linaro.org
2018-03-23sdhci: fix incorrect use of Error *Paolo Bonzini1-2/+2
Detected by Coverity (CID 1386072, 1386073, 1386076, 1386077). local_err was unused, and this made the static analyzer unhappy. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 20180320151355.25854-1-pbonzini@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-12hw: Do not include "sysemu/block-backend.h" if it is not necessaryThomas Huth1-1/+0
After reviewing a patch from Philippe that removes block-backend.h from hw/lm32/milkymist.c, I noticed that this header is included unnecessarily in a lot of other files, too. Remove those unneeded includes to speed up the compilation process a little bit. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1518684912-31637-1-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-09sdhci: Fix a typo in commentPhilippe Mathieu-Daudé1-2/+2
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20180309153654.13518-8-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09sdcard: Add the Tuning Command (CMD19)Philippe Mathieu-Daudé1-0/+29
From the "Physical Layer Simplified Specification Version 3.01": A known data block ("Tuning block") can be used to tune sampling point for tuning required hosts. [...] This procedure gives the system optimal timing for each specific host and card combination and compensates for static delays in the timing budget including process, voltage and different PCB loads and skews. [...] Data block, carried by DAT[3:0], contains a pattern for tuning sampling position to receive data on the CMD and DAT[3:0] line. [based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180309153654.13518-5-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09sdcard: Display which protocol is used when tracing (SD or SPI)Philippe Mathieu-Daudé2-8/+14
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20180309153654.13518-4-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09sdcard: Display command name when tracing CMD/ACMDPhilippe Mathieu-Daudé5-10/+109
The SDBus will reuse these functions, so we put them in a new source file. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180309153654.13518-3-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: slight wordsmithing of comments, added note that string returned does not need to be freed] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09sdcard: Do not trace CMD55, except when we already expect an ACMDPhilippe Mathieu-Daudé1-3/+8
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180309153654.13518-2-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: simplify SD_SEND_OP_COND (ACMD41)Philippe Mathieu-Daudé1-30/+26
replace switch(single case) -> if() Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-17-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: simplify SEND_IF_COND (CMD8)Philippe Mathieu-Daudé1-15/+11
replace switch(single case) -> if() Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-16-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: warn if host uses an incorrect address for APP CMD (CMD55)Philippe Mathieu-Daudé1-0/+5
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-15-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: check the card is in correct state for APP CMD (CMD55)Philippe Mathieu-Daudé1-0/+8
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-14-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: handles more commands in SPI modePhilippe Mathieu-Daudé1-3/+26
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-13-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: use a more descriptive label 'unimplemented_spi_cmd'Philippe Mathieu-Daudé1-9/+13
Suggested-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-12-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: handle the Security Specification commandsPhilippe Mathieu-Daudé1-0/+12
returning sd_illegal, since they are not implemented. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-11-f4bug@amsat.org [PMM: tweak multiline comment format] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: handle CMD54 (SDIO)Philippe Mathieu-Daudé1-3/+2
Linux uses it to poll the bus before polling for a card. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-10-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: use the registerfields API for the CARD_STATUS register masksPhilippe Mathieu-Daudé1-3/+45
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-9-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: use the correct masked OCR in the R3 replyPhilippe Mathieu-Daudé1-5/+16
use the registerfields API to access the OCR register Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-8-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: simplify using the ldst APIPhilippe Mathieu-Daudé1-29/+9
the code is easier to review/refactor. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-7-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: remove commands from unsupported old MMC specificationPhilippe Mathieu-Daudé1-33/+0
This device does not model MMCA Specification previous to v4.2 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-6-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: clean the SCR register and add few commentsPhilippe Mathieu-Daudé1-3/+6
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-5-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: fix the 'maximum data transfer rate' to 25MHzPhilippe Mathieu-Daudé1-1/+1
To comply with Spec v1.10 (and 2.00, 3.01): . TRAN_SPEED for current SD Memory Cards that field must be always 0_0110_010b (032h) which is equal to 25MHz - the mandatory maximum operating frequency of SD Memory Card. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-4-f4bug@amsat.org [PMM: fixed comment indent] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: update the CSD CRC register regardless the CSD structure versionPhilippe Mathieu-Daudé1-2/+1
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-3-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: Don't always set the high capacity bitPhilippe Mathieu-Daudé1-1/+4
Don't set the high capacity bit by default as it will be set if required in the sd_set_csd() function. [based on a patch from Alistair Francis <alistair.francis@xilinx.com> and Peter Ogden <ogden@xilinx.com> from qemu/xilinx tag xilinx-v2015.4] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215221325.7611-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: use the registerfields API to access the OCR registerPhilippe Mathieu-Daudé1-8/+13
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-12-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: use G_BYTE from cutilsPhilippe Mathieu-Daudé1-1/+2
code is now easier to read. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-11-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: define SDMMC_CMD_MAX instead of using the magic '64'Philippe Mathieu-Daudé2-6/+31
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-8-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: add more trace eventsPhilippe Mathieu-Daudé2-6/+39
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-6-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: replace fprintf() by qemu_hexdump()Philippe Mathieu-Daudé1-15/+1
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-5-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: add a trace event for command responsesPhilippe Mathieu-Daudé2-3/+25
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180215220540.6556-4-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: replace DPRINTF() by trace eventsPhilippe Mathieu-Daudé2-6/+32
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-3-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22sdcard: reorder SDState struct membersPhilippe Mathieu-Daudé1-7/+9
place card registers first, this will ease further code movements. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180215220540.6556-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22hw/sd/ssi-sd: use the SDBus API, connect the SDCard to the busPhilippe Mathieu-Daudé1-13/+19
On reset the bus will reset the card, we can now drop the device_reset() call. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20180216022933.10945-5-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22hw/sd/milkymist-memcard: expose a SDBus and connect the SDCard to itPhilippe Mathieu-Daudé1-17/+21
using the sdbus_*() API. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Acked-by: Michael Walle <michael@walle.cc> Message-id: 20180216022933.10945-4-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22hw/sd/milkymist-memcard: split realize() out of SysBusDevice init()Philippe Mathieu-Daudé1-12/+16
Create the SDCard in the realize() function. Suggested-by: Michael Walle <michael@walle.cc> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Acked-by: Michael Walle <michael@walle.cc> Message-id: 20180216022933.10945-3-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22hw/sd/milkymist-memcard: use qemu_log_mask()Philippe Mathieu-Daudé1-7/+10
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Acked-by: Michael Walle <michael@walle.cc> Message-id: 20180216022933.10945-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13sdhci: add Spec v4.2 register definitionsPhilippe Mathieu-Daudé2-1/+24
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180208164818.7961-31-f4bug@amsat.org>
2018-02-13sdhci: implement CMD/DAT[] fields in the Present State registerPhilippe Mathieu-Daudé5-0/+58
[based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-23-f4bug@amsat.org>
2018-02-13sdhci: implement UHS-I voltage switchPhilippe Mathieu-Daudé4-1/+38
[based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-22-f4bug@amsat.org>
2018-02-13sdbus: add trace eventsPhilippe Mathieu-Daudé2-2/+17
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-21-f4bug@amsat.org>
2018-02-13sdhci: implement the Host Control 2 register (tuning sequence)Philippe Mathieu-Daudé2-3/+29
[based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-20-f4bug@amsat.org>
2018-02-13sdhci: rename the hostctl1 registerPhilippe Mathieu-Daudé1-21/+21
As per the Spec v3.00 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-19-f4bug@amsat.org>
2018-02-13sdhci: add support for v3 capabilitiesPhilippe Mathieu-Daudé2-2/+65
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-18-f4bug@amsat.org>
2018-02-13sdhci: check Spec v2 capabilities (DMA and 64-bit bus)Philippe Mathieu-Daudé2-9/+19
Incorrect value will throw an error. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-14-f4bug@amsat.org>
2018-02-13sdhci: Fix 64-bit ADMA2Sai Pavan Boddu1-2/+2
The 64-bit ADMA address is not converted to the cpu endianes correctly. This patch fixes the issue and uses a valid mask for the attribute data. Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com> [AF: Re-write commit message] Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-13-f4bug@amsat.org>
2018-02-13sdhci: replace DMA magic value by BLOCK_SIZE_MASKPhilippe Mathieu-Daudé1-8/+10
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-12-f4bug@amsat.org>
2018-02-13sdhci: check the Spec v1 capabilities correctnessPhilippe Mathieu-Daudé3-2/+116
Incorrect value will throw an error. Note than Spec v2 is supported by default. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-11-f4bug@amsat.org>
2018-02-13sdhci: simplify sdhci_get_fifolen()Philippe Mathieu-Daudé2-16/+8
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-10-f4bug@amsat.org>
2018-02-13sdhci: use a numeric value for the default CAPAB registerPhilippe Mathieu-Daudé1-58/+16
using many #defines is not portable when scaling to different HCI. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-9-f4bug@amsat.org>
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