mmc: Relax the 50MHz overclock check #7135
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EMMC clock speeds are based around divisions of 52Mhz, not the 50MHz used by SD. As such, relax the "full speed" check (intended to stop any overclock whenever an operation has to be retried) so that any requested speed of 50MHz or higher will be overclocked. See: raspberrypi#7120 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
EMMC clock speeds are based around divisions of 52Mhz, not the 50MHz used by SD. As such, relax the "full speed" check (intended to stop any overclock whenever an operation has to be retried) so that any requested speed of 50MHz or higher will be overclocked. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
approved these changes
Nov 12, 2025
EMMC clock speeds are based around divisions of 52Mhz, not the 50MHz used by SD. As such, relax the "full speed" check (intended to stop any overclock whenever an operation has to be retried) so that any requested speed of 50MHz or higher will be overclocked. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Nov 14, 2025
kernel: overlays: Add vec-gpio-pi5-overlay See: raspberrypi/linux#7127 kernel: drivers: i2c: imx708: Use pm_runtime_use_autosuspend() See: raspberrypi/linux#7128 kernel: mmc: Relax the 50MHz overclock check See: raspberrypi/linux#7135 kernel: pwm: rp1: Silently correct illegal values See: raspberrypi/linux#7133
popcornmix
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Nov 14, 2025
kernel: overlays: Add vec-gpio-pi5-overlay See: raspberrypi/linux#7127 kernel: drivers: i2c: imx708: Use pm_runtime_use_autosuspend() See: raspberrypi/linux#7128 kernel: mmc: Relax the 50MHz overclock check See: raspberrypi/linux#7135 kernel: pwm: rp1: Silently correct illegal values See: raspberrypi/linux#7133
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EMMC clock speeds are based around divisions of 52Mhz, not the 50MHz
used by SD. As such, relax the "full speed" check (intended to stop
any overclock whenever an operation has to be retried) so that any
requested speed of 50MHz or higher will be overclocked.
See: #7120