OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

sdcard: Add a 'spec_version' property, default to Spec v2.00

Browse Source 
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 <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-06-08 13:15:33 +01:00 committed by Peter Maydell
parent e2fce16edb
commit 2f0939c234
2 changed files with 25 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
hw/sd/sd.c
View File

@ -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 <balrog@zabor.org>
* Copyright (c) 2007 CodeSourcery
* Copyright (c) 2018 Philippe Mathieu-Daudé <f4bug@amsat.org>
*
* 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

5
include/hw/sd/sd.h
View File

@ -54,6 +54,11 @@
#define APP_CMD (1 << 5)
#define AKE_SEQ_ERROR (1 << 3)
enum SDPhySpecificationVersion {
SD_PHY_SPECv1_10_VERS = 1,
SD_PHY_SPECv2_00_VERS = 2,
};
typedef enum {
SD_VOLTAGE_0_4V = 400, /* currently not supported */
SD_VOLTAGE_1_8V = 1800,