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[Qemu-devel] [PATCH v4 03/20] sdcard: fix the 'maximum data transfer rat
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH v4 03/20] sdcard: fix the 'maximum data transfer rate' to 25MHz |
Date: |
Thu, 15 Feb 2018 19:13:08 -0300 |
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 <address@hidden>
Reviewed-by: Alistair Francis <address@hidden>
---
hw/sd/sd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index c1ba098d86..14c1cb1332 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -358,7 +358,7 @@ static void sd_set_csd(SDState *sd, uint64_t size)
sd->csd[0] = 0x00; /* CSD structure */
sd->csd[1] = 0x26; /* Data read access-time-1 */
sd->csd[2] = 0x00; /* Data read access-time-2 */
- sd->csd[3] = 0x5a; /* Max. data transfer rate */
+ sd->csd[3] = 0x32; /* Max. data transfer rate: 25 MHz */
sd->csd[4] = 0x5f; /* Card Command Classes */
sd->csd[5] = 0x50 | /* Max. read data block length */
HWBLOCK_SHIFT;
--
2.16.1
- [Qemu-devel] [PATCH v4 00/20] SDCard: bugfixes, support UHS-I (part 5), Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 01/20] sdcard: Don't always set the high capacity bit, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 02/20] sdcard: update the CSD CRC register regardless the CSD structure version, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 03/20] sdcard: fix the 'maximum data transfer rate' to 25MHz,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH v4 04/20] sdcard: clean the SCR register and add few comments, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 05/20] sdcard: remove commands from unsupported old MMC specification, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 06/20] sdcard: simplify using the ldst API, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 07/20] sdcard: use the correct masked OCR in the R3 reply, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 08/20] sdcard: use the registerfields API for the CARD_STATUS register masks, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 09/20] sdcard: handle CMD54 (SDIO), Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 10/20] sdcard: handle the Security Specification commands, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 11/20] sdcard: use a more descriptive label 'unimplemented_spi_cmd', Philippe Mathieu-Daudé, 2018/02/15