mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 16:07:30 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
|
|
* (C) Copyright 2009
|
|
* Marvell Semiconductor <www.marvell.com>
|
|
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
|
|
*
|
|
* Derived from drivers/spi/mpc8xxx_spi.c
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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 */
|
|
};
|
|
|
|
/* They are used to define CONFIG_SYS_KW_SPI_MPP
|
|
* each of the below #defines selects which mpp is
|
|
* configured for each SPI signal in spi_claim_bus
|
|
* bit 0: selects pin for MOSI (MPP1 if 0, MPP6 if 1)
|
|
* bit 1: selects pin for SCK (MPP2 if 0, MPP10 if 1)
|
|
* bit 2: selects pin for MISO (MPP3 if 0, MPP11 if 1)
|
|
*/
|
|
#define MOSI_MPP6 (1 << 0)
|
|
#define SCK_MPP10 (1 << 1)
|
|
#define MISO_MPP11 (1 << 2)
|
|
|
|
#define KWSPI_CLKPRESCL_MASK 0x1f
|
|
#define KWSPI_CLKPRESCL_MIN 0x12
|
|
#define KWSPI_CSN_ACT 1 /* Activates serial memory interface */
|
|
#define KWSPI_SMEMRDY (1 << 1) /* SerMem Data xfer ready */
|
|
#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_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_TIMEOUT 10000
|
|
|
|
#endif /* __KW_SPI_H__ */
|