#include <spi-generic.h>
#include <stddef.h>

Include dependency graph for spi.h:

Data Structures
struct	rockchip_spi

Macros
#define	SF_READ_DATA_CMD 0x3

#define	SPI_DFS_OFFSET 0 /* Data Frame Size */

#define	SPI_DFS_MASK 0x3

#define	SPI_DFS_4BIT 0x00

#define	SPI_DFS_8BIT 0x01

#define	SPI_DFS_16BIT 0x02

#define	SPI_DFS_RESV 0x03

#define	SPI_CFS_OFFSET 2

#define	SPI_CFS_MASK 0xF

#define	SPI_SCPH_OFFSET 6

#define	SPI_SCPH_MASK 0x1

#define	SPI_SCPH_TOGMID 0

#define	SPI_SCPH_TOGSTA 1

#define	SPI_SCOL_OFFSET 7

#define	SPI_SCOL_MASK 0x1

#define	SPI_SCOL_LOW 0

#define	SPI_SCOL_HIGH 1

#define	SPI_CSM_OFFSET 8

#define	SPI_CSM_MASK 0x3

#define	SPI_CSM_KEEP 0x00

#define	SPI_CSM_HALF 0x01

#define	SPI_CSM_ONE 0x02

#define	SPI_CSM_RESV 0x03

#define	SPI_SSN_DELAY_OFFSET 10

#define	SPI_SSN_DELAY_MASK 0x1

#define	SPI_SSN_DELAY_HALF 0x00

#define	SPI_SSN_DELAY_ONE 0x01

#define	SPI_SEM_OFFSET 11

#define	SPI_SEM_MASK 0x1

#define	SPI_SEM_LITTLE 0x00

#define	SPI_SEM_BIG 0x01

#define	SPI_FBM_OFFSET 12

#define	SPI_FBM_MASK 0x1

#define	SPI_FBM_MSB 0x00

#define	SPI_FBM_LSB 0x01

#define	SPI_HALF_WORLD_TX_OFFSET 13

#define	SPI_HALF_WORLD_MASK 0x1

#define	SPI_APB_16BIT 0x00

#define	SPI_APB_8BIT 0x01

#define	SPI_RXDSD_OFFSET 14

#define	SPI_RXDSD_MASK 0x3

#define	SPI_FRF_OFFSET 16

#define	SPI_FRF_MASK 0x3

#define	SPI_FRF_SPI 0x00

#define	SPI_FRF_SSP 0x01

#define	SPI_FRF_MICROWIRE 0x02

#define	SPI_FRF_RESV 0x03

#define	SPI_TMOD_OFFSET 18

#define	SPI_TMOD_MASK 0x3

#define	SPI_TMOD_TR 0x00

#define	SPI_TMOD_TO 0x01

#define	SPI_TMOD_RO 0x02

#define	SPI_TMOD_RESV 0x03

#define	SPI_OMOD_OFFSET 20

#define	SPI_OMOD_MASK 0x1

#define	SPI_OMOD_MASTER 0x00

#define	SPI_OMOD_SLAVE 0x01

#define	TXFLR_LEVEL_MASK 0x3f

#define	RXFLR_LEVEL_MASK 0x3f

#define	SR_MASK 0x7f

#define	SR_BUSY (1 << 0)

#define	SR_TF_FULL (1 << 1)

#define	SR_TF_EMPT (1 << 2)

#define	SR_RF_EMPT (1 << 3)

#define	SR_RF_FULL (1 << 4)

#define	SPI_INT_TXEI (1 << 0)

#define	SPI_INT_TXOI (1 << 1)

#define	SPI_INT_RXUI (1 << 2)

#define	SPI_INT_RXOI (1 << 3)

#define	SPI_INT_RXFI (1 << 4)

#define	SPI_DMACR_TX_ENABLE (1 << 1)

#define	SPI_DMACR_RX_ENABLE (1 << 0)

#define	SPI_CLEAR_INT_ALL (1 << 0)

#define	SPI_CLEAR_INT_RXUI (1 << 1)

#define	SPI_CLEAR_INT_RXOI (1 << 2)

#define	SPI_CLEAR_INT_TXOI (1 << 3)

Functions
	check_member (rockchip_spi, rxdr, 0x800)

void	rockchip_spi_init (unsigned int bus, unsigned int speed_hz)

void	rockchip_spi_set_sample_delay (unsigned int bus, unsigned int delay_ns)

Macro Definition Documentation

◆ RXFLR_LEVEL_MASK

#define RXFLR_LEVEL_MASK 0x3f

Definition at line 159 of file spi.h.

◆ SF_READ_DATA_CMD

#define SF_READ_DATA_CMD 0x3

Definition at line 35 of file spi.h.

◆ SPI_APB_16BIT

#define SPI_APB_16BIT 0x00

Definition at line 115 of file spi.h.

◆ SPI_APB_8BIT

#define SPI_APB_8BIT 0x01

Definition at line 117 of file spi.h.

◆ SPI_CFS_MASK

#define SPI_CFS_MASK 0xF

Definition at line 48 of file spi.h.

◆ SPI_CFS_OFFSET

#define SPI_CFS_OFFSET 2

Definition at line 47 of file spi.h.

◆ SPI_CLEAR_INT_ALL

#define SPI_CLEAR_INT_ALL (1 << 0)

Definition at line 181 of file spi.h.

◆ SPI_CLEAR_INT_RXOI

#define SPI_CLEAR_INT_RXOI (1 << 2)

Definition at line 183 of file spi.h.

◆ SPI_CLEAR_INT_RXUI

#define SPI_CLEAR_INT_RXUI (1 << 1)

Definition at line 182 of file spi.h.

◆ SPI_CLEAR_INT_TXOI

#define SPI_CLEAR_INT_TXOI (1 << 3)

Definition at line 184 of file spi.h.

◆ SPI_CSM_HALF

#define SPI_CSM_HALF 0x01

Definition at line 81 of file spi.h.

◆ SPI_CSM_KEEP

#define SPI_CSM_KEEP 0x00

Definition at line 75 of file spi.h.

◆ SPI_CSM_MASK

#define SPI_CSM_MASK 0x3

Definition at line 72 of file spi.h.

◆ SPI_CSM_OFFSET

#define SPI_CSM_OFFSET 8

Definition at line 71 of file spi.h.

◆ SPI_CSM_ONE

#define SPI_CSM_ONE 0x02

Definition at line 84 of file spi.h.

◆ SPI_CSM_RESV

#define SPI_CSM_RESV 0x03

Definition at line 85 of file spi.h.

◆ SPI_DFS_16BIT

#define SPI_DFS_16BIT 0x02

Definition at line 43 of file spi.h.

◆ SPI_DFS_4BIT

#define SPI_DFS_4BIT 0x00

Definition at line 41 of file spi.h.

◆ SPI_DFS_8BIT

#define SPI_DFS_8BIT 0x01

Definition at line 42 of file spi.h.

◆ SPI_DFS_MASK

#define SPI_DFS_MASK 0x3

Definition at line 40 of file spi.h.

◆ SPI_DFS_OFFSET

#define SPI_DFS_OFFSET 0 /* Data Frame Size */

Definition at line 39 of file spi.h.

◆ SPI_DFS_RESV

#define SPI_DFS_RESV 0x03

Definition at line 44 of file spi.h.

◆ SPI_DMACR_RX_ENABLE

#define SPI_DMACR_RX_ENABLE (1 << 0)

Definition at line 178 of file spi.h.

◆ SPI_DMACR_TX_ENABLE

#define SPI_DMACR_TX_ENABLE (1 << 1)

Definition at line 177 of file spi.h.

◆ SPI_FBM_LSB

#define SPI_FBM_LSB 0x01

Definition at line 109 of file spi.h.

◆ SPI_FBM_MASK

#define SPI_FBM_MASK 0x1

Definition at line 105 of file spi.h.

◆ SPI_FBM_MSB

#define SPI_FBM_MSB 0x00

Definition at line 107 of file spi.h.

◆ SPI_FBM_OFFSET

#define SPI_FBM_OFFSET 12

Definition at line 104 of file spi.h.

◆ SPI_FRF_MASK

#define SPI_FRF_MASK 0x3

Definition at line 125 of file spi.h.

◆ SPI_FRF_MICROWIRE

#define SPI_FRF_MICROWIRE 0x02

Definition at line 131 of file spi.h.

◆ SPI_FRF_OFFSET

#define SPI_FRF_OFFSET 16

Definition at line 124 of file spi.h.

◆ SPI_FRF_RESV

#define SPI_FRF_RESV 0x03

Definition at line 132 of file spi.h.

◆ SPI_FRF_SPI

#define SPI_FRF_SPI 0x00

Definition at line 127 of file spi.h.

◆ SPI_FRF_SSP

#define SPI_FRF_SSP 0x01

Definition at line 129 of file spi.h.

◆ SPI_HALF_WORLD_MASK

#define SPI_HALF_WORLD_MASK 0x1

Definition at line 113 of file spi.h.

◆ SPI_HALF_WORLD_TX_OFFSET

#define SPI_HALF_WORLD_TX_OFFSET 13

Definition at line 112 of file spi.h.

◆ SPI_INT_RXFI

#define SPI_INT_RXFI (1 << 4)

Definition at line 174 of file spi.h.

◆ SPI_INT_RXOI

#define SPI_INT_RXOI (1 << 3)

Definition at line 173 of file spi.h.

◆ SPI_INT_RXUI

#define SPI_INT_RXUI (1 << 2)

Definition at line 172 of file spi.h.

◆ SPI_INT_TXEI

#define SPI_INT_TXEI (1 << 0)

Definition at line 170 of file spi.h.

◆ SPI_INT_TXOI

#define SPI_INT_TXOI (1 << 1)

Definition at line 171 of file spi.h.

◆ SPI_OMOD_MASK

#define SPI_OMOD_MASK 0x1

Definition at line 147 of file spi.h.

◆ SPI_OMOD_MASTER

#define SPI_OMOD_MASTER 0x00

Definition at line 149 of file spi.h.

◆ SPI_OMOD_OFFSET

#define SPI_OMOD_OFFSET 20

Definition at line 146 of file spi.h.

◆ SPI_OMOD_SLAVE

#define SPI_OMOD_SLAVE 0x01

Definition at line 151 of file spi.h.

◆ SPI_RXDSD_MASK

#define SPI_RXDSD_MASK 0x3

Definition at line 121 of file spi.h.

◆ SPI_RXDSD_OFFSET

#define SPI_RXDSD_OFFSET 14

Definition at line 120 of file spi.h.

◆ SPI_SCOL_HIGH

#define SPI_SCOL_HIGH 1

Definition at line 68 of file spi.h.

◆ SPI_SCOL_LOW

#define SPI_SCOL_LOW 0

Definition at line 65 of file spi.h.

◆ SPI_SCOL_MASK

#define SPI_SCOL_MASK 0x1

Definition at line 62 of file spi.h.

◆ SPI_SCOL_OFFSET

#define SPI_SCOL_OFFSET 7

Definition at line 61 of file spi.h.

◆ SPI_SCPH_MASK

#define SPI_SCPH_MASK 0x1

Definition at line 52 of file spi.h.

◆ SPI_SCPH_OFFSET

#define SPI_SCPH_OFFSET 6

Definition at line 51 of file spi.h.

◆ SPI_SCPH_TOGMID

#define SPI_SCPH_TOGMID 0

Definition at line 55 of file spi.h.

◆ SPI_SCPH_TOGSTA

#define SPI_SCPH_TOGSTA 1

Definition at line 58 of file spi.h.

◆ SPI_SEM_BIG

#define SPI_SEM_BIG 0x01

Definition at line 101 of file spi.h.

◆ SPI_SEM_LITTLE

#define SPI_SEM_LITTLE 0x00

Definition at line 99 of file spi.h.

◆ SPI_SEM_MASK

#define SPI_SEM_MASK 0x1

Definition at line 97 of file spi.h.

◆ SPI_SEM_OFFSET

#define SPI_SEM_OFFSET 11

Definition at line 96 of file spi.h.

◆ SPI_SSN_DELAY_HALF

#define SPI_SSN_DELAY_HALF 0x00

Definition at line 91 of file spi.h.

◆ SPI_SSN_DELAY_MASK

#define SPI_SSN_DELAY_MASK 0x1

Definition at line 89 of file spi.h.

◆ SPI_SSN_DELAY_OFFSET

#define SPI_SSN_DELAY_OFFSET 10

Definition at line 88 of file spi.h.

◆ SPI_SSN_DELAY_ONE

#define SPI_SSN_DELAY_ONE 0x01

Definition at line 93 of file spi.h.

◆ SPI_TMOD_MASK

#define SPI_TMOD_MASK 0x3

Definition at line 136 of file spi.h.

◆ SPI_TMOD_OFFSET

#define SPI_TMOD_OFFSET 18

Definition at line 135 of file spi.h.

◆ SPI_TMOD_RESV

#define SPI_TMOD_RESV 0x03

Definition at line 143 of file spi.h.

◆ SPI_TMOD_RO

#define SPI_TMOD_RO 0x02

Definition at line 142 of file spi.h.

◆ SPI_TMOD_TO

#define SPI_TMOD_TO 0x01

Definition at line 140 of file spi.h.

◆ SPI_TMOD_TR

#define SPI_TMOD_TR 0x00

Definition at line 138 of file spi.h.

◆ SR_BUSY

#define SR_BUSY (1 << 0)

Definition at line 163 of file spi.h.

◆ SR_MASK

#define SR_MASK 0x7f

Definition at line 162 of file spi.h.

◆ SR_RF_EMPT

#define SR_RF_EMPT (1 << 3)

Definition at line 166 of file spi.h.

◆ SR_RF_FULL

#define SR_RF_FULL (1 << 4)

Definition at line 167 of file spi.h.

◆ SR_TF_EMPT

#define SR_TF_EMPT (1 << 2)

Definition at line 165 of file spi.h.

◆ SR_TF_FULL

#define SR_TF_FULL (1 << 1)

Definition at line 164 of file spi.h.

◆ TXFLR_LEVEL_MASK

#define TXFLR_LEVEL_MASK 0x3f

Definition at line 156 of file spi.h.

Function Documentation

◆ check_member()

check_member	(	rockchip_spi	,
		rxdr	,
		0x800
	)

◆ rockchip_spi_init()

void rockchip_spi_init	(	unsigned int	bus,
		unsigned int	speed_hz
	)

Definition at line 84 of file spi.c.

References ARRAY_SIZE, assert, rockchip_bitbang_slave::clk, rockchip_bitbang_slave::cs, rockchip_spi::ctrlr0, gpio_input(), gpio_output(), rockchip_bitbang_slave::miso, rockchip_bitbang_slave::mosi, rockchip_spi_slave::regs, rkclk_configure_spi(), rockchip_spi_enable_chip(), rockchip_spi_set_clk(), rockchip_spi_slaves, slaves, SPI_CSM_KEEP, SPI_CSM_OFFSET, SPI_DFS_8BIT, SPI_DFS_OFFSET, SPI_FBM_MSB, SPI_FBM_OFFSET, SPI_FIFO_DEPTH, SPI_FRF_OFFSET, SPI_FRF_SPI, SPI_OMOD_MASTER, SPI_OMOD_OFFSET, SPI_SEM_LITTLE, SPI_SEM_OFFSET, SPI_SRCCLK_HZ, SPI_SSN_DELAY_OFFSET, SPI_SSN_DELAY_ONE, and write32().

Referenced by bootblock_mainboard_init(), configure_ec(), configure_spi_flash(), and configure_tpm().

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◆ rockchip_spi_set_sample_delay()

void rockchip_spi_set_sample_delay	(	unsigned int	bus,
		unsigned int	delay_ns
	)

Definition at line 122 of file spi.c.

References ARRAY_SIZE, assert, clrsetbits32, DIV_ROUND_CLOSEST, GHz, rockchip_spi_slave::regs, rockchip_spi_slaves, SPI_RXDSD_MASK, SPI_RXDSD_OFFSET, and SPI_SRCCLK_HZ.

Referenced by configure_spi_flash().