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ARM: 5667/3: U300 SSP/SPI board setup and test

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This adds a U300 board configuration for the PL022 SSP/SPI
PrimeCell driver recently merged to the 2.6.31-rc series.
Further it adds a dummy loopback SPI chip that can be used
for testing the SPI functionality on a running system using
the loopback mode of PL022.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Linus Walleij
2009-08-14 10:59:05 +01:00
committed by Russell King
parent df1e0520f9
commit c7c8c78fdf
6 changed files with 460 additions and 0 deletions
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26
arch/arm/mach-u300/spi.h Normal file
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/*
* arch/arm/mach-u300/spi.h
*
* Copyright (C) 2009 ST-Ericsson AB
* License terms: GNU General Public License (GPL) version 2
*
* Author: Linus Walleij <linus.walleij@stericsson.com>
*/
#ifndef SPI_H
#define SPI_H
#include <linux/amba/bus.h>
#ifdef CONFIG_SPI_PL022
void __init u300_spi_init(struct amba_device *adev);
void __init u300_spi_register_board_devices(void);
#else
/* Compile out SPI support if PL022 is not selected */
static inline void __init u300_spi_init(struct amba_device *adev)
{
}
static inline void __init u300_spi_register_board_devices(void)
{
}
#endif
#endif