103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/*
|
|
* 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) 2009-2011 Florian Fainelli <florian@openwrt.org>
|
|
* Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/export.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/err.h>
|
|
#include <linux/clk.h>
|
|
|
|
#include <bcm63xx_cpu.h>
|
|
#include <bcm63xx_dev_spi.h>
|
|
#include <bcm63xx_regs.h>
|
|
|
|
#ifdef BCMCPU_RUNTIME_DETECT
|
|
/*
|
|
* register offsets
|
|
*/
|
|
static const unsigned long bcm6348_regs_spi[] = {
|
|
__GEN_SPI_REGS_TABLE(6348)
|
|
};
|
|
|
|
static const unsigned long bcm6358_regs_spi[] = {
|
|
__GEN_SPI_REGS_TABLE(6358)
|
|
};
|
|
|
|
const unsigned long *bcm63xx_regs_spi;
|
|
EXPORT_SYMBOL(bcm63xx_regs_spi);
|
|
|
|
static __init void bcm63xx_spi_regs_init(void)
|
|
{
|
|
if (BCMCPU_IS_6338() || BCMCPU_IS_6348())
|
|
bcm63xx_regs_spi = bcm6348_regs_spi;
|
|
if (BCMCPU_IS_3368() || BCMCPU_IS_6358() ||
|
|
BCMCPU_IS_6362() || BCMCPU_IS_6368())
|
|
bcm63xx_regs_spi = bcm6358_regs_spi;
|
|
}
|
|
#else
|
|
static __init void bcm63xx_spi_regs_init(void) { }
|
|
#endif
|
|
|
|
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 = 8,
|
|
};
|
|
|
|
static struct platform_device bcm63xx_spi_device = {
|
|
.name = "bcm63xx-spi",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(spi_resources),
|
|
.resource = spi_resources,
|
|
.dev = {
|
|
.platform_data = &spi_pdata,
|
|
},
|
|
};
|
|
|
|
int __init bcm63xx_spi_register(void)
|
|
{
|
|
if (BCMCPU_IS_6328() || BCMCPU_IS_6345())
|
|
return -ENODEV;
|
|
|
|
spi_resources[0].start = bcm63xx_regset_address(RSET_SPI);
|
|
spi_resources[0].end = spi_resources[0].start;
|
|
spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
|
|
|
|
if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
|
|
spi_resources[0].end += BCM_6348_RSET_SPI_SIZE - 1;
|
|
spi_pdata.fifo_size = SPI_6348_MSG_DATA_SIZE;
|
|
spi_pdata.msg_type_shift = SPI_6348_MSG_TYPE_SHIFT;
|
|
spi_pdata.msg_ctl_width = SPI_6348_MSG_CTL_WIDTH;
|
|
}
|
|
|
|
if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || BCMCPU_IS_6362() ||
|
|
BCMCPU_IS_6368()) {
|
|
spi_resources[0].end += BCM_6358_RSET_SPI_SIZE - 1;
|
|
spi_pdata.fifo_size = SPI_6358_MSG_DATA_SIZE;
|
|
spi_pdata.msg_type_shift = SPI_6358_MSG_TYPE_SHIFT;
|
|
spi_pdata.msg_ctl_width = SPI_6358_MSG_CTL_WIDTH;
|
|
}
|
|
|
|
bcm63xx_spi_regs_init();
|
|
|
|
return platform_device_register(&bcm63xx_spi_device);
|
|
}
|