u-boot/arch/arm/include/asm/arch-mvebu/spi.h
Pascal Linder fd9d70d738 km/spi: remove deprecated SPI flash driver code for KM Kirkwood boards
KM Kirkwood boards now implement the driver model for its SPI flash
interface. Therefore, the old board specific claim and release functions
can be deleted. The preprocessor definition CONFIG_SYS_KW_SPI_MPP is yet
unused as well. All its appearances and dependencies are removed in the
kirkwood_spi driver, header files and finally the configuration whitelist.

Signed-off-by: Pascal Linder <pascal.linder@edu.hefr.ch>
Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2019-07-11 10:58:03 +02:00

60 lines
1.8 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2009
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* Derived from drivers/spi/mpc8xxx_spi.c
*/
#ifndef __KW_SPI_H__
#define __KW_SPI_H__
/* SPI Registers on kirkwood SOC */
struct kwspi_registers {
u32 ctrl; /* 0x10600 */
u32 cfg; /* 0x10604 */
u32 dout; /* 0x10608 */
u32 din; /* 0x1060c */
u32 irq_cause; /* 0x10610 */
u32 irq_mask; /* 0x10614 */
u32 timing1; /* 0x10618 */
u32 timing2; /* 0x1061c */
u32 dw_cfg; /* 0x10620 - Direct Write Configuration */
};
/* Control Register */
#define KWSPI_CSN_ACT (1 << 0) /* Activates serial memory interface */
#define KWSPI_SMEMRDY (1 << 1) /* SerMem Data xfer ready */
#define KWSPI_CS_SHIFT 2 /* chip select shift */
#define KWSPI_CS_MASK 0x7 /* chip select mask */
/* Configuration Register */
#define KWSPI_CLKPRESCL_MASK 0x1f
#define KWSPI_CLKPRESCL_MIN 0x12
#define KWSPI_XFERLEN_1BYTE 0
#define KWSPI_XFERLEN_2BYTE (1 << 5)
#define KWSPI_XFERLEN_MASK (1 << 5)
#define KWSPI_ADRLEN_1BYTE 0
#define KWSPI_ADRLEN_2BYTE (1 << 8)
#define KWSPI_ADRLEN_3BYTE (2 << 8)
#define KWSPI_ADRLEN_4BYTE (3 << 8)
#define KWSPI_ADRLEN_MASK (3 << 8)
#define KWSPI_CPOL (1 << 11)
#define KWSPI_CPHA (1 << 12)
#define KWSPI_TXLSBF (1 << 13)
#define KWSPI_RXLSBF (1 << 14)
/* Timing Parameters 1 Register */
#define KW_SPI_TMISO_SAMPLE_OFFSET 6
#define KW_SPI_TMISO_SAMPLE_MASK (0x3 << KW_SPI_TMISO_SAMPLE_OFFSET)
#define KW_SPI_TMISO_SAMPLE_1 (1 << KW_SPI_TMISO_SAMPLE_OFFSET)
#define KW_SPI_TMISO_SAMPLE_2 (2 << KW_SPI_TMISO_SAMPLE_OFFSET)
#define KWSPI_IRQUNMASK 1 /* unmask SPI interrupt */
#define KWSPI_IRQMASK 0 /* mask SPI interrupt */
#define KWSPI_SMEMRDIRQ 1 /* SerMem data xfer ready irq */
#define KWSPI_TIMEOUT 10000
#endif /* __KW_SPI_H__ */