| commit | c557e08d9c9729cdf6b98f7a9c1ebf72fa25e916 | |
| author | Bin Meng <bin.meng@windriver.com> | |
| Tue, 16 Feb 2021 15:02:25 +0000 (16 23:02 +0800) | ||
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | |
| Fri, 19 Feb 2021 23:17:09 +0000 (20 00:17 +0100) | ||
| tree | aae5cf996288aee2453b1bf4724045a4684cf023 | treesnapshot (tar.gz zip) |
| parent | 19fa6c9e9bc2061be39b0337a9eee859563e272a | commitdiff |
hw/sd: sd: Bypass the RCA check for CMD13 in SPI mode
Unlike SD mode, when SD card is working in SPI mode, the argument
of CMD13 is stuff bits. Hence we should bypass the RCA check.
See "Physical Layer Specification Version 8.00", chapter 7.3.1.3
Detailed Command Description (SPI mode):
"The card shall ignore stuff bits and reserved bits in an argument"
and Table 7-3 Commands and Arguments (SPI mode):
"CMD13 Argument [31:0] stuff bits"
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-9-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Unlike SD mode, when SD card is working in SPI mode, the argument
of CMD13 is stuff bits. Hence we should bypass the RCA check.
See "Physical Layer Specification Version 8.00", chapter 7.3.1.3
Detailed Command Description (SPI mode):
"The card shall ignore stuff bits and reserved bits in an argument"
and Table 7-3 Commands and Arguments (SPI mode):
"CMD13 Argument [31:0] stuff bits"
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-9-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
| hw/sd/sd.c | diffblobblamehistory |