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spi: initial BF54x SPI support
Initial BF54x SPI support - support BF54x SPI0 - clean up some code (whitespace etc) - will support multiports in the future - start using portmux calls Signed-off-by: Bryan Wu <[email protected]> Signed-off-by: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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2 changed files with 86 additions and 70 deletions
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@ -1644,8 +1644,25 @@
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#define RESTART 0x20 /* Work Unit Transitions */
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#define DI_SEL 0x40 /* Data Interrupt Timing Select */
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#define DI_EN 0x80 /* Data Interrupt Enable */
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#define NDSIZE 0xf00 /* Flex Descriptor Size */
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#define NDSIZE_0 0x0000 /* Next Descriptor Size = 0 (Stop/Autobuffer) */
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#define NDSIZE_1 0x0100 /* Next Descriptor Size = 1 */
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#define NDSIZE_2 0x0200 /* Next Descriptor Size = 2 */
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#define NDSIZE_3 0x0300 /* Next Descriptor Size = 3 */
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#define NDSIZE_4 0x0400 /* Next Descriptor Size = 4 */
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#define NDSIZE_5 0x0500 /* Next Descriptor Size = 5 */
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#define NDSIZE_6 0x0600 /* Next Descriptor Size = 6 */
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#define NDSIZE_7 0x0700 /* Next Descriptor Size = 7 */
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#define NDSIZE_8 0x0800 /* Next Descriptor Size = 8 */
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#define NDSIZE_9 0x0900 /* Next Descriptor Size = 9 */
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#define DMAFLOW 0xf000 /* Next Operation */
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#define DMAFLOW_STOP 0x0000 /* Stop Mode */
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#define DMAFLOW_AUTO 0x1000 /* Autobuffer Mode */
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#define DMAFLOW_ARRAY 0x4000 /* Descriptor Array Mode */
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#define DMAFLOW_SMALL 0x6000 /* Small Model Descriptor List Mode */
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#define DMAFLOW_LARGE 0x7000 /* Large Model Descriptor List Mode */
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/* Bit masks for DMAx_IRQ_STATUS, MDMA_Sx_IRQ_STATUS, MDMA_Dx_IRQ_STATUS */
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