- 21 7月, 2011 2 次提交
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由 James Hogan 提交于
The FIFO_DEPTH hardware configuration parameter can be found from the power-on value of RX_WMark in the FIFOTH register. This is used to initialise the watermarks, but when calculating the number of free fifo spaces a preprocessor definition is used which is hard coded to 32. Fix reading the value out of FIFOTH (the default value in the RX_WMark field is FIFO_DEPTH-1 not FIFO_DEPTH). Allow the fifo depth to be overriden by platform data (since a bootloader may have changed FIFOTH making auto-detection unreliable). Store the fifo_depth for later use. Also fix the calculation to find the number of free bytes in the fifo to include the fifo depth in the left shift by the data shift, since the fifo depth is measured in fifo items not bytes. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 James Hogan 提交于
Add brackets around use of the dev argument to the mci_{read,write}{w,l,q}() macros, for extra safety. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 16 3月, 2011 1 次提交
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由 Jaehoon Chung 提交于
This patch adds DDR mode support to dw_mmc. If we set any bit in UHS_REG bit[16:31], the card of that slot is supported for DDR mode. For example, if UHS_REG[16] is set, card number 0 is DDR mode. Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 09 1月, 2011 1 次提交
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由 Will Newton 提交于
This adds the mmc host driver for the Synopsys DesignWare mmc host controller, found in a number of embedded SoC designs. Signed-off-by: NWill Newton <will.newton@imgtec.com> Reviewed-by: NMatt Fleming <matt@console-pimps.org> Reviewed-by: NChris Ball <cjb@laptop.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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