spi: xilinx_spi: Move header code to driver
Move the header code into driver for more readable and
easy to access it.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 56d99d1..8073edc 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -21,7 +21,118 @@
#include <malloc.h>
#include <spi.h>
-#include "xilinx_spi.h"
+/*
+ * Xilinx SPI Register Definition
+ *
+ * [1]: [0]/ip_documentation/xps_spi.pdf
+ * page 8, Register Descriptions
+ * [2]: [0]/ip_documentation/axi_spi_ds742.pdf
+ * page 7, Register Overview Table
+ */
+struct xilinx_spi_reg {
+ u32 __space0__[7];
+ u32 dgier; /* Device Global Interrupt Enable Register (DGIER) */
+ u32 ipisr; /* IP Interrupt Status Register (IPISR) */
+ u32 __space1__;
+ u32 ipier; /* IP Interrupt Enable Register (IPIER) */
+ u32 __space2__[5];
+ u32 srr; /* Softare Reset Register (SRR) */
+ u32 __space3__[7];
+ u32 spicr; /* SPI Control Register (SPICR) */
+ u32 spisr; /* SPI Status Register (SPISR) */
+ u32 spidtr; /* SPI Data Transmit Register (SPIDTR) */
+ u32 spidrr; /* SPI Data Receive Register (SPIDRR) */
+ u32 spissr; /* SPI Slave Select Register (SPISSR) */
+ u32 spitfor; /* SPI Transmit FIFO Occupancy Register (SPITFOR) */
+ u32 spirfor; /* SPI Receive FIFO Occupancy Register (SPIRFOR) */
+};
+
+/* Device Global Interrupt Enable Register (dgier), [1] p15, [2] p15 */
+#define DGIER_GIE (1 << 31)
+
+/* IP Interrupt Status Register (ipisr), [1] p15, [2] p15 */
+#define IPISR_DRR_NOT_EMPTY (1 << 8)
+#define IPISR_SLAVE_SELECT (1 << 7)
+#define IPISR_TXF_HALF_EMPTY (1 << 6)
+#define IPISR_DRR_OVERRUN (1 << 5)
+#define IPISR_DRR_FULL (1 << 4)
+#define IPISR_DTR_UNDERRUN (1 << 3)
+#define IPISR_DTR_EMPTY (1 << 2)
+#define IPISR_SLAVE_MODF (1 << 1)
+#define IPISR_MODF (1 << 0)
+
+/* IP Interrupt Enable Register (ipier), [1] p17, [2] p18 */
+#define IPIER_DRR_NOT_EMPTY (1 << 8)
+#define IPIER_SLAVE_SELECT (1 << 7)
+#define IPIER_TXF_HALF_EMPTY (1 << 6)
+#define IPIER_DRR_OVERRUN (1 << 5)
+#define IPIER_DRR_FULL (1 << 4)
+#define IPIER_DTR_UNDERRUN (1 << 3)
+#define IPIER_DTR_EMPTY (1 << 2)
+#define IPIER_SLAVE_MODF (1 << 1)
+#define IPIER_MODF (1 << 0)
+
+/* Softare Reset Register (srr), [1] p9, [2] p8 */
+#define SRR_RESET_CODE 0x0000000A
+
+/* SPI Control Register (spicr), [1] p9, [2] p8 */
+#define SPICR_LSB_FIRST (1 << 9)
+#define SPICR_MASTER_INHIBIT (1 << 8)
+#define SPICR_MANUAL_SS (1 << 7)
+#define SPICR_RXFIFO_RESEST (1 << 6)
+#define SPICR_TXFIFO_RESEST (1 << 5)
+#define SPICR_CPHA (1 << 4)
+#define SPICR_CPOL (1 << 3)
+#define SPICR_MASTER_MODE (1 << 2)
+#define SPICR_SPE (1 << 1)
+#define SPICR_LOOP (1 << 0)
+
+/* SPI Status Register (spisr), [1] p11, [2] p10 */
+#define SPISR_SLAVE_MODE_SELECT (1 << 5)
+#define SPISR_MODF (1 << 4)
+#define SPISR_TX_FULL (1 << 3)
+#define SPISR_TX_EMPTY (1 << 2)
+#define SPISR_RX_FULL (1 << 1)
+#define SPISR_RX_EMPTY (1 << 0)
+
+/* SPI Data Transmit Register (spidtr), [1] p12, [2] p12 */
+#define SPIDTR_8BIT_MASK (0xff << 0)
+#define SPIDTR_16BIT_MASK (0xffff << 0)
+#define SPIDTR_32BIT_MASK (0xffffffff << 0)
+
+/* SPI Data Receive Register (spidrr), [1] p12, [2] p12 */
+#define SPIDRR_8BIT_MASK (0xff << 0)
+#define SPIDRR_16BIT_MASK (0xffff << 0)
+#define SPIDRR_32BIT_MASK (0xffffffff << 0)
+
+/* SPI Slave Select Register (spissr), [1] p13, [2] p13 */
+#define SPISSR_MASK(cs) (1 << (cs))
+#define SPISSR_ACT(cs) ~SPISSR_MASK(cs)
+#define SPISSR_OFF ~0UL
+
+/* SPI Transmit FIFO Occupancy Register (spitfor), [1] p13, [2] p14 */
+#define SPITFOR_OCYVAL_POS 0
+#define SPITFOR_OCYVAL_MASK (0xf << SPITFOR_OCYVAL_POS)
+
+/* SPI Receive FIFO Occupancy Register (spirfor), [1] p14, [2] p14 */
+#define SPIRFOR_OCYVAL_POS 0
+#define SPIRFOR_OCYVAL_MASK (0xf << SPIRFOR_OCYVAL_POS)
+
+/* SPI Software Reset Register (ssr) */
+#define SPISSR_RESET_VALUE 0x0a
+
+struct xilinx_spi_slave {
+ struct spi_slave slave;
+ struct xilinx_spi_reg *regs;
+ unsigned int freq;
+ unsigned int mode;
+};
+
+static inline struct xilinx_spi_slave *to_xilinx_spi_slave(
+ struct spi_slave *slave)
+{
+ return container_of(slave, struct xilinx_spi_slave, slave);
+}
#ifndef CONFIG_SYS_XILINX_SPI_LIST
#define CONFIG_SYS_XILINX_SPI_LIST { CONFIG_SYS_SPI_BASE }