#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <mach/board.h>
#include <asm/gpio.h>
#include <mach/cpu.h>

Data Structures
struct	atmel_spi

struct	atmel_spi_device

Macros
#define	SPI_CR 0x0000

#define	SPI_MR 0x0004

#define	SPI_RDR 0x0008

#define	SPI_TDR 0x000c

#define	SPI_SR 0x0010

#define	SPI_IER 0x0014

#define	SPI_IDR 0x0018

#define	SPI_IMR 0x001c

#define	SPI_CSR0 0x0030

#define	SPI_CSR1 0x0034

#define	SPI_CSR2 0x0038

#define	SPI_CSR3 0x003c

#define	SPI_RPR 0x0100

#define	SPI_RCR 0x0104

#define	SPI_TPR 0x0108

#define	SPI_TCR 0x010c

#define	SPI_RNPR 0x0110

#define	SPI_RNCR 0x0114

#define	SPI_TNPR 0x0118

#define	SPI_TNCR 0x011c

#define	SPI_PTCR 0x0120

#define	SPI_PTSR 0x0124

#define	SPI_SPIEN_OFFSET 0

#define	SPI_SPIEN_SIZE 1

#define	SPI_SPIDIS_OFFSET 1

#define	SPI_SPIDIS_SIZE 1

#define	SPI_SWRST_OFFSET 7

#define	SPI_SWRST_SIZE 1

#define	SPI_LASTXFER_OFFSET 24

#define	SPI_LASTXFER_SIZE 1

#define	SPI_MSTR_OFFSET 0

#define	SPI_MSTR_SIZE 1

#define	SPI_PS_OFFSET 1

#define	SPI_PS_SIZE 1

#define	SPI_PCSDEC_OFFSET 2

#define	SPI_PCSDEC_SIZE 1

#define	SPI_FDIV_OFFSET 3

#define	SPI_FDIV_SIZE 1

#define	SPI_MODFDIS_OFFSET 4

#define	SPI_MODFDIS_SIZE 1

#define	SPI_LLB_OFFSET 7

#define	SPI_LLB_SIZE 1

#define	SPI_PCS_OFFSET 16

#define	SPI_PCS_SIZE 4

#define	SPI_DLYBCS_OFFSET 24

#define	SPI_DLYBCS_SIZE 8

#define	SPI_RD_OFFSET 0

#define	SPI_RD_SIZE 16

#define	SPI_TD_OFFSET 0

#define	SPI_TD_SIZE 16

#define	SPI_RDRF_OFFSET 0

#define	SPI_RDRF_SIZE 1

#define	SPI_TDRE_OFFSET 1

#define	SPI_TDRE_SIZE 1

#define	SPI_MODF_OFFSET 2

#define	SPI_MODF_SIZE 1

#define	SPI_OVRES_OFFSET 3

#define	SPI_OVRES_SIZE 1

#define	SPI_ENDRX_OFFSET 4

#define	SPI_ENDRX_SIZE 1

#define	SPI_ENDTX_OFFSET 5

#define	SPI_ENDTX_SIZE 1

#define	SPI_RXBUFF_OFFSET 6

#define	SPI_RXBUFF_SIZE 1

#define	SPI_TXBUFE_OFFSET 7

#define	SPI_TXBUFE_SIZE 1

#define	SPI_NSSR_OFFSET 8

#define	SPI_NSSR_SIZE 1

#define	SPI_TXEMPTY_OFFSET 9

#define	SPI_TXEMPTY_SIZE 1

#define	SPI_SPIENS_OFFSET 16

#define	SPI_SPIENS_SIZE 1

#define	SPI_CPOL_OFFSET 0

#define	SPI_CPOL_SIZE 1

#define	SPI_NCPHA_OFFSET 1

#define	SPI_NCPHA_SIZE 1

#define	SPI_CSAAT_OFFSET 3

#define	SPI_CSAAT_SIZE 1

#define	SPI_BITS_OFFSET 4

#define	SPI_BITS_SIZE 4

#define	SPI_SCBR_OFFSET 8

#define	SPI_SCBR_SIZE 8

#define	SPI_DLYBS_OFFSET 16

#define	SPI_DLYBS_SIZE 8

#define	SPI_DLYBCT_OFFSET 24

#define	SPI_DLYBCT_SIZE 8

#define	SPI_RXCTR_OFFSET 0

#define	SPI_RXCTR_SIZE 16

#define	SPI_TXCTR_OFFSET 0

#define	SPI_TXCTR_SIZE 16

#define	SPI_RXNCR_OFFSET 0

#define	SPI_RXNCR_SIZE 16

#define	SPI_TXNCR_OFFSET 0

#define	SPI_TXNCR_SIZE 16

#define	SPI_RXTEN_OFFSET 0

#define	SPI_RXTEN_SIZE 1

#define	SPI_RXTDIS_OFFSET 1

#define	SPI_RXTDIS_SIZE 1

#define	SPI_TXTEN_OFFSET 8

#define	SPI_TXTEN_SIZE 1

#define	SPI_TXTDIS_OFFSET 9

#define	SPI_TXTDIS_SIZE 1

#define	SPI_BITS_8_BPT 0

#define	SPI_BITS_9_BPT 1

#define	SPI_BITS_10_BPT 2

#define	SPI_BITS_11_BPT 3

#define	SPI_BITS_12_BPT 4

#define	SPI_BITS_13_BPT 5

#define	SPI_BITS_14_BPT 6

#define	SPI_BITS_15_BPT 7

#define	SPI_BITS_16_BPT 8

#define	SPI_BIT(name) (1 << SPI_##name##_OFFSET)

#define	SPI_BF(name, value) (((value) & ((1 << SPI_##name##_SIZE) - 1)) << SPI_##name##_OFFSET)

#define	SPI_BFEXT(name, value) (((value) >> SPI_##name##_OFFSET) & ((1 << SPI_##name##_SIZE) - 1))

#define	SPI_BFINS(name, value, old)

#define	spi_readl(port, reg) __raw_readl((port)->regs + SPI_##reg)

#define	spi_writel(port, reg, value) __raw_writel((value), (port)->regs + SPI_##reg)

#define	BUFFER_SIZE PAGE_SIZE

#define	INVALID_DMA_ADDRESS 0xffffffff

#define	atmel_spi_suspend NULL

#define	atmel_spi_resume NULL

Functions
	module_platform_driver (atmel_spi_driver)

	MODULE_DESCRIPTION ("Atmel AT32/AT91 SPI Controller driver")

	MODULE_AUTHOR ("Haavard Skinnemoen (Atmel)")

	MODULE_LICENSE ("GPL")

	MODULE_ALIAS ("platform:atmel_spi")

Macro Definition Documentation

#define atmel_spi_resume NULL

Definition at line 1064 of file spi-atmel.c.

#define atmel_spi_suspend NULL

Definition at line 1063 of file spi-atmel.c.

#define BUFFER_SIZE PAGE_SIZE

Definition at line 214 of file spi-atmel.c.

#define INVALID_DMA_ADDRESS 0xffffffff

Definition at line 215 of file spi-atmel.c.

#define SPI_BF	(	name,
		value
	)	(((value) & ((1 << SPI_##name##_SIZE) - 1)) << SPI_##name##_OFFSET)

Definition at line 168 of file spi-atmel.c.

#define SPI_BFEXT	(	name,
		value
	)	(((value) >> SPI_##name##_OFFSET) & ((1 << SPI_##name##_SIZE) - 1))

Definition at line 170 of file spi-atmel.c.

#define SPI_BFINS	(	name,
		value,
		old
	)

Value:

( ((old) & ~(((1 << SPI_##name##_SIZE) - 1) << SPI_##name##_OFFSET)) \

| SPI_BF(name,value))

Definition at line 172 of file spi-atmel.c.

#define SPI_BIT ( name ) (1 << SPI_##name##_OFFSET)

Definition at line 166 of file spi-atmel.c.

#define SPI_BITS_10_BPT 2

Definition at line 157 of file spi-atmel.c.

#define SPI_BITS_11_BPT 3

Definition at line 158 of file spi-atmel.c.

#define SPI_BITS_12_BPT 4

Definition at line 159 of file spi-atmel.c.

#define SPI_BITS_13_BPT 5

Definition at line 160 of file spi-atmel.c.

#define SPI_BITS_14_BPT 6

Definition at line 161 of file spi-atmel.c.

#define SPI_BITS_15_BPT 7

Definition at line 162 of file spi-atmel.c.

#define SPI_BITS_16_BPT 8

Definition at line 163 of file spi-atmel.c.

#define SPI_BITS_8_BPT 0

Definition at line 155 of file spi-atmel.c.

#define SPI_BITS_9_BPT 1

Definition at line 156 of file spi-atmel.c.

#define SPI_BITS_OFFSET 4

Definition at line 119 of file spi-atmel.c.

#define SPI_BITS_SIZE 4

Definition at line 120 of file spi-atmel.c.

#define SPI_CPOL_OFFSET 0

Definition at line 113 of file spi-atmel.c.

#define SPI_CPOL_SIZE 1

Definition at line 114 of file spi-atmel.c.

#define SPI_CR 0x0000

Definition at line 29 of file spi-atmel.c.

#define SPI_CSAAT_OFFSET 3

Definition at line 117 of file spi-atmel.c.

#define SPI_CSAAT_SIZE 1

Definition at line 118 of file spi-atmel.c.

#define SPI_CSR0 0x0030

Definition at line 37 of file spi-atmel.c.

#define SPI_CSR1 0x0034

Definition at line 38 of file spi-atmel.c.

#define SPI_CSR2 0x0038

Definition at line 39 of file spi-atmel.c.

#define SPI_CSR3 0x003c

Definition at line 40 of file spi-atmel.c.

#define SPI_DLYBCS_OFFSET 24

Definition at line 77 of file spi-atmel.c.

#define SPI_DLYBCS_SIZE 8

Definition at line 78 of file spi-atmel.c.

#define SPI_DLYBCT_OFFSET 24

Definition at line 125 of file spi-atmel.c.

#define SPI_DLYBCT_SIZE 8

Definition at line 126 of file spi-atmel.c.

#define SPI_DLYBS_OFFSET 16

Definition at line 123 of file spi-atmel.c.

#define SPI_DLYBS_SIZE 8

Definition at line 124 of file spi-atmel.c.

#define SPI_ENDRX_OFFSET 4

Definition at line 97 of file spi-atmel.c.

#define SPI_ENDRX_SIZE 1

Definition at line 98 of file spi-atmel.c.

#define SPI_ENDTX_OFFSET 5

Definition at line 99 of file spi-atmel.c.

#define SPI_ENDTX_SIZE 1

Definition at line 100 of file spi-atmel.c.

#define SPI_FDIV_OFFSET 3

Definition at line 69 of file spi-atmel.c.

#define SPI_FDIV_SIZE 1

Definition at line 70 of file spi-atmel.c.

#define SPI_IDR 0x0018

Definition at line 35 of file spi-atmel.c.

#define SPI_IER 0x0014

Definition at line 34 of file spi-atmel.c.

#define SPI_IMR 0x001c

Definition at line 36 of file spi-atmel.c.

#define SPI_LASTXFER_OFFSET 24

Definition at line 59 of file spi-atmel.c.

#define SPI_LASTXFER_SIZE 1

Definition at line 60 of file spi-atmel.c.

#define SPI_LLB_OFFSET 7

Definition at line 73 of file spi-atmel.c.

#define SPI_LLB_SIZE 1

Definition at line 74 of file spi-atmel.c.

#define SPI_MODF_OFFSET 2

Definition at line 93 of file spi-atmel.c.

#define SPI_MODF_SIZE 1

Definition at line 94 of file spi-atmel.c.

#define SPI_MODFDIS_OFFSET 4

Definition at line 71 of file spi-atmel.c.

#define SPI_MODFDIS_SIZE 1

Definition at line 72 of file spi-atmel.c.

#define SPI_MR 0x0004

Definition at line 30 of file spi-atmel.c.

#define SPI_MSTR_OFFSET 0

Definition at line 63 of file spi-atmel.c.

#define SPI_MSTR_SIZE 1

Definition at line 64 of file spi-atmel.c.

#define SPI_NCPHA_OFFSET 1

Definition at line 115 of file spi-atmel.c.

#define SPI_NCPHA_SIZE 1

Definition at line 116 of file spi-atmel.c.

#define SPI_NSSR_OFFSET 8

Definition at line 105 of file spi-atmel.c.

#define SPI_NSSR_SIZE 1

Definition at line 106 of file spi-atmel.c.

#define SPI_OVRES_OFFSET 3

Definition at line 95 of file spi-atmel.c.

#define SPI_OVRES_SIZE 1

Definition at line 96 of file spi-atmel.c.

#define SPI_PCS_OFFSET 16

Definition at line 75 of file spi-atmel.c.

#define SPI_PCS_SIZE 4

Definition at line 76 of file spi-atmel.c.

#define SPI_PCSDEC_OFFSET 2

Definition at line 67 of file spi-atmel.c.

#define SPI_PCSDEC_SIZE 1

Definition at line 68 of file spi-atmel.c.

#define SPI_PS_OFFSET 1

Definition at line 65 of file spi-atmel.c.

#define SPI_PS_SIZE 1

Definition at line 66 of file spi-atmel.c.

#define SPI_PTCR 0x0120

Definition at line 49 of file spi-atmel.c.

#define SPI_PTSR 0x0124

Definition at line 50 of file spi-atmel.c.

#define SPI_RCR 0x0104

Definition at line 42 of file spi-atmel.c.

#define SPI_RD_OFFSET 0

Definition at line 81 of file spi-atmel.c.

#define SPI_RD_SIZE 16

Definition at line 82 of file spi-atmel.c.

#define SPI_RDR 0x0008

Definition at line 31 of file spi-atmel.c.

#define SPI_RDRF_OFFSET 0

Definition at line 89 of file spi-atmel.c.

#define SPI_RDRF_SIZE 1

Definition at line 90 of file spi-atmel.c.

#define spi_readl	(	port,
		reg
	)	__raw_readl((port)->regs + SPI_##reg)

Definition at line 177 of file spi-atmel.c.

#define SPI_RNCR 0x0114

Definition at line 46 of file spi-atmel.c.

#define SPI_RNPR 0x0110

Definition at line 45 of file spi-atmel.c.

#define SPI_RPR 0x0100

Definition at line 41 of file spi-atmel.c.

#define SPI_RXBUFF_OFFSET 6

Definition at line 101 of file spi-atmel.c.

#define SPI_RXBUFF_SIZE 1

Definition at line 102 of file spi-atmel.c.

#define SPI_RXCTR_OFFSET 0

Definition at line 129 of file spi-atmel.c.

#define SPI_RXCTR_SIZE 16

Definition at line 130 of file spi-atmel.c.

#define SPI_RXNCR_OFFSET 0

Definition at line 137 of file spi-atmel.c.

#define SPI_RXNCR_SIZE 16

Definition at line 138 of file spi-atmel.c.

#define SPI_RXTDIS_OFFSET 1

Definition at line 147 of file spi-atmel.c.

#define SPI_RXTDIS_SIZE 1

Definition at line 148 of file spi-atmel.c.

#define SPI_RXTEN_OFFSET 0

Definition at line 145 of file spi-atmel.c.

#define SPI_RXTEN_SIZE 1

Definition at line 146 of file spi-atmel.c.

#define SPI_SCBR_OFFSET 8

Definition at line 121 of file spi-atmel.c.

#define SPI_SCBR_SIZE 8

Definition at line 122 of file spi-atmel.c.

#define SPI_SPIDIS_OFFSET 1

Definition at line 55 of file spi-atmel.c.

#define SPI_SPIDIS_SIZE 1

Definition at line 56 of file spi-atmel.c.

#define SPI_SPIEN_OFFSET 0

Definition at line 53 of file spi-atmel.c.

#define SPI_SPIEN_SIZE 1

Definition at line 54 of file spi-atmel.c.

#define SPI_SPIENS_OFFSET 16

Definition at line 109 of file spi-atmel.c.

#define SPI_SPIENS_SIZE 1

Definition at line 110 of file spi-atmel.c.

#define SPI_SR 0x0010

Definition at line 33 of file spi-atmel.c.

#define SPI_SWRST_OFFSET 7

Definition at line 57 of file spi-atmel.c.

#define SPI_SWRST_SIZE 1

Definition at line 58 of file spi-atmel.c.

#define SPI_TCR 0x010c

Definition at line 44 of file spi-atmel.c.

#define SPI_TD_OFFSET 0

Definition at line 85 of file spi-atmel.c.

#define SPI_TD_SIZE 16

Definition at line 86 of file spi-atmel.c.

#define SPI_TDR 0x000c

Definition at line 32 of file spi-atmel.c.

#define SPI_TDRE_OFFSET 1

Definition at line 91 of file spi-atmel.c.

#define SPI_TDRE_SIZE 1

Definition at line 92 of file spi-atmel.c.

#define SPI_TNCR 0x011c

Definition at line 48 of file spi-atmel.c.

#define SPI_TNPR 0x0118

Definition at line 47 of file spi-atmel.c.

#define SPI_TPR 0x0108

Definition at line 43 of file spi-atmel.c.

#define SPI_TXBUFE_OFFSET 7

Definition at line 103 of file spi-atmel.c.

#define SPI_TXBUFE_SIZE 1

Definition at line 104 of file spi-atmel.c.

#define SPI_TXCTR_OFFSET 0

Definition at line 133 of file spi-atmel.c.

#define SPI_TXCTR_SIZE 16

Definition at line 134 of file spi-atmel.c.

#define SPI_TXEMPTY_OFFSET 9

Definition at line 107 of file spi-atmel.c.

#define SPI_TXEMPTY_SIZE 1

Definition at line 108 of file spi-atmel.c.

#define SPI_TXNCR_OFFSET 0

Definition at line 141 of file spi-atmel.c.

#define SPI_TXNCR_SIZE 16

Definition at line 142 of file spi-atmel.c.

#define SPI_TXTDIS_OFFSET 9

Definition at line 151 of file spi-atmel.c.

#define SPI_TXTDIS_SIZE 1

Definition at line 152 of file spi-atmel.c.

#define SPI_TXTEN_OFFSET 8

Definition at line 149 of file spi-atmel.c.

#define SPI_TXTEN_SIZE 1

Definition at line 150 of file spi-atmel.c.

#define spi_writel	(	port,
		reg,
		value
	)	__raw_writel((value), (port)->regs + SPI_##reg)

Definition at line 179 of file spi-atmel.c.

Function Documentation

MODULE_ALIAS ( "platform:atmel_spi" )

MODULE_AUTHOR ( "Haavard Skinnemoen (Atmel)" )

MODULE_DESCRIPTION ( "Atmel AT32/AT91 SPI Controller driver" )

MODULE_LICENSE ( "GPL" )

module_platform_driver ( atmel_spi_driver )

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation