spi: atmel: Drop atmel_spi.h

atmel_spi.h has register offsets, and atmel_spi_slave
structure, move it into .c file for better readability
and drop atmel_spi.h

Cc: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index b9f684d..b120664 100644 (file)
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -9,20 +9,102 @@
 #include <spi.h>
 #include <malloc.h>
 #include <wait_bit.h>
-
 #include <asm/io.h>
-
 #include <asm/arch/clk.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_spi.h>
 #if CONFIG_IS_ENABLED(DM_GPIO)
 #include <asm/gpio.h>
 #endif
+#include <linux/bitops.h>
 
-#include "atmel_spi.h"
+/*
+ * Register definitions for the Atmel AT32/AT91 SPI Controller
+ */
+/* Register offsets */
+#define ATMEL_SPI_CR                   0x0000
+#define ATMEL_SPI_MR                   0x0004
+#define ATMEL_SPI_RDR                  0x0008
+#define ATMEL_SPI_TDR                  0x000c
+#define ATMEL_SPI_SR                   0x0010
+#define ATMEL_SPI_IER                  0x0014
+#define ATMEL_SPI_IDR                  0x0018
+#define ATMEL_SPI_IMR                  0x001c
+#define ATMEL_SPI_CSR(x)               (0x0030 + 4 * (x))
+#define ATMEL_SPI_VERSION              0x00fc
+
+/* Bits in CR */
+#define ATMEL_SPI_CR_SPIEN             BIT(0)
+#define ATMEL_SPI_CR_SPIDIS            BIT(1)
+#define ATMEL_SPI_CR_SWRST             BIT(7)
+#define ATMEL_SPI_CR_LASTXFER          BIT(24)
+
+/* Bits in MR */
+#define ATMEL_SPI_MR_MSTR              BIT(0)
+#define ATMEL_SPI_MR_PS                        BIT(1)
+#define ATMEL_SPI_MR_PCSDEC            BIT(2)
+#define ATMEL_SPI_MR_FDIV              BIT(3)
+#define ATMEL_SPI_MR_MODFDIS           BIT(4)
+#define ATMEL_SPI_MR_WDRBT             BIT(5)
+#define ATMEL_SPI_MR_LLB               BIT(7)
+#define ATMEL_SPI_MR_PCS(x)            (((x) & 15) << 16)
+#define ATMEL_SPI_MR_DLYBCS(x)         ((x) << 24)
+
+/* Bits in RDR */
+#define ATMEL_SPI_RDR_RD(x)            (x)
+#define ATMEL_SPI_RDR_PCS(x)           ((x) << 16)
+
+/* Bits in TDR */
+#define ATMEL_SPI_TDR_TD(x)            (x)
+#define ATMEL_SPI_TDR_PCS(x)           ((x) << 16)
+#define ATMEL_SPI_TDR_LASTXFER         BIT(24)
+
+/* Bits in SR/IER/IDR/IMR */
+#define ATMEL_SPI_SR_RDRF              BIT(0)
+#define ATMEL_SPI_SR_TDRE              BIT(1)
+#define ATMEL_SPI_SR_MODF              BIT(2)
+#define ATMEL_SPI_SR_OVRES             BIT(3)
+#define ATMEL_SPI_SR_ENDRX             BIT(4)
+#define ATMEL_SPI_SR_ENDTX             BIT(5)
+#define ATMEL_SPI_SR_RXBUFF            BIT(6)
+#define ATMEL_SPI_SR_TXBUFE            BIT(7)
+#define ATMEL_SPI_SR_NSSR              BIT(8)
+#define ATMEL_SPI_SR_TXEMPTY           BIT(9)
+#define ATMEL_SPI_SR_SPIENS            BIT(16)
+
+/* Bits in CSRx */
+#define ATMEL_SPI_CSRx_CPOL            BIT(0)
+#define ATMEL_SPI_CSRx_NCPHA           BIT(1)
+#define ATMEL_SPI_CSRx_CSAAT           BIT(3)
+#define ATMEL_SPI_CSRx_BITS(x)         ((x) << 4)
+#define ATMEL_SPI_CSRx_SCBR(x)         ((x) << 8)
+#define ATMEL_SPI_CSRx_SCBR_MAX                GENMASK(7, 0)
+#define ATMEL_SPI_CSRx_DLYBS(x)                ((x) << 16)
+#define ATMEL_SPI_CSRx_DLYBCT(x)       ((x) << 24)
+
+/* Bits in VERSION */
+#define ATMEL_SPI_VERSION_REV(x)       ((x) & 0xfff)
+#define ATMEL_SPI_VERSION_MFN(x)       ((x) << 16)
+
+/* Constants for CSRx:BITS */
+#define ATMEL_SPI_BITS_8               0
+#define ATMEL_SPI_BITS_9               1
+#define ATMEL_SPI_BITS_10              2
+#define ATMEL_SPI_BITS_11              3
+#define ATMEL_SPI_BITS_12              4
+#define ATMEL_SPI_BITS_13              5
+#define ATMEL_SPI_BITS_14              6
+#define ATMEL_SPI_BITS_15              7
+#define ATMEL_SPI_BITS_16              8
 
 #define MAX_CS_COUNT   4
 
+/* Register access macros */
+#define spi_readl(as, reg)                                     \
+       readl(as->regs + ATMEL_SPI_##reg)
+#define spi_writel(as, reg, value)                             \
+       writel(value, as->regs + ATMEL_SPI_##reg)
+
 struct atmel_spi_platdata {
        struct at91_spi *regs;
 };