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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2018-02-22 15:12:53 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-02-22 15:12:53 +0000 |
| commit | d7ecb8675298fefdaea35f6d7a558e91ec0b4138 (patch) | |
| tree | 19088bda5789f461aabea722198f93fef8180fee /hw/sd/sd.c | |
| parent | e8feec808e96163dd82754521383a203b8fe7bce (diff) | |
| download | focaccia-qemu-d7ecb8675298fefdaea35f6d7a558e91ec0b4138.tar.gz focaccia-qemu-d7ecb8675298fefdaea35f6d7a558e91ec0b4138.zip | |
sdcard: fix the 'maximum data transfer rate' to 25MHz
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>
Diffstat (limited to 'hw/sd/sd.c')
| -rw-r--r-- | hw/sd/sd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 110f2f1d0a..3526269dbe 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -357,7 +357,7 @@ 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; |