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[brcm63xx] prepare for SPI controller driver

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14755 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian
2009-03-06 01:15:00 +00:00
parent 493a9bf37a
commit 8bd259b281
5 changed files with 252 additions and 0 deletions
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60
target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-spi.c Normal file
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_dev_spi.h>
static struct resource spi_resources[] = {
{
.start = -1, /* filled at runtime */
.end = -1, /* filled at runtime */
.flags = IORESOURCE_MEM,
},
{
.start = -1, /* filled at runtime */
.flags = IORESOURCE_IRQ,
},
};
static struct bcm63xx_spi_pdata spi_pdata = {
.bus_num = 0,
.num_chipselect = 4,
.speed_hz = 50000000, /* Fclk */
};
static struct platform_device bcm63xx_spi_device = {
.name = "bcm63xx_spi",
.id = 0,
.num_resources = ARRAY_SIZE(spi_resources),
.resource = spi_resources,
.dev.pdata = &spi_pdata;
};
int __init bcm63xx_spi_register(void)
{
spi_resources[0].start = bcm63xx_regset_address(RSET_SPI);
spi_resources[0].end = spi_resources[0].start;
spi_resources[0].end += RSET_SPI_SIZE - 1;
spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
/* Fill in platform data */
if (CPU_IS_BCM6338() || CPU_IS_BCM6348()) {
spi_pdata.msg_fifo_size = SPI_BCM_6338_SPI_MSG_DATA_SIZE;
spi_pdata.rx_fifo_size = SPI_BCM_6338_SPI_RX_DATA_SIZE;
}
if (CPU_IS_BCM6358()) {
spi_pdata.msg_fifo_size = SPI_BCM_6358_SPI_MSG_DATA_SIZE;
spi_pdata.rx_fifo_size = SPI_BCM_6358_SPI_RX_DATA_SIZE;
}
return platform_device_register(&bcm63xx_spi_device);
}