From 2f0939c2342f0dbe5d3abb264cf5e6cd6636375a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 8 Jun 2018 13:15:33 +0100 Subject: sdcard: Add a 'spec_version' property, default to Spec v2.00 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As of this commit, the Spec v1 is not working, and all controllers expect the cards to be conformant to Spec v2. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Message-id: 20180607180641.874-4-f4bug@amsat.org Signed-off-by: Peter Maydell --- hw/sd/sd.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'hw/sd/sd.c') diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 80e70dd..1ae085d 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -1,9 +1,10 @@ /* * SD Memory Card emulation as defined in the "SD Memory Card Physical - * layer specification, Version 1.10." + * layer specification, Version 2.00." * * Copyright (c) 2006 Andrzej Zaborowski * Copyright (c) 2007 CodeSourcery + * Copyright (c) 2018 Philippe Mathieu-Daudé * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -91,6 +92,7 @@ struct SDState { uint8_t sd_status[64]; /* Configurable properties */ + uint8_t spec_version; BlockBackend *blk; bool spi; @@ -310,8 +312,12 @@ static void sd_ocr_powerup(void *opaque) static void sd_set_scr(SDState *sd) { - sd->scr[0] = (0 << 4) /* SCR structure version 1.0 */ - | 1; /* Spec Version 1.10 */ + sd->scr[0] = 0 << 4; /* SCR structure version 1.0 */ + if (sd->spec_version == SD_PHY_SPECv1_10_VERS) { + sd->scr[0] |= 1; /* Spec Version 1.10 */ + } else { + sd->scr[0] |= 2; /* Spec Version 2.00 */ + } sd->scr[1] = (2 << 4) /* SDSC Card (Security Version 1.01) */ | 0b0101; /* 1-bit or 4-bit width bus modes */ sd->scr[2] = 0x00; /* Extended Security is not supported. */ @@ -2058,6 +2064,15 @@ static void sd_realize(DeviceState *dev, Error **errp) sd->proto_name = sd->spi ? "SPI" : "SD"; + switch (sd->spec_version) { + case SD_PHY_SPECv1_10_VERS + ... SD_PHY_SPECv2_00_VERS: + break; + default: + error_setg(errp, "Invalid SD card Spec version: %u", sd->spec_version); + return; + } + if (sd->blk && blk_is_read_only(sd->blk)) { error_setg(errp, "Cannot use read-only drive as SD card"); return; @@ -2074,6 +2089,8 @@ static void sd_realize(DeviceState *dev, Error **errp) } static Property sd_properties[] = { + DEFINE_PROP_UINT8("spec_version", SDState, + spec_version, SD_PHY_SPECv2_00_VERS), DEFINE_PROP_DRIVE("drive", SDState, blk), /* We do not model the chip select pin, so allow the board to select * whether card should be in SSI or MMC/SD mode. It is also up to the -- cgit v1.1