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// SPDX-License-Identifier: GPL-2.0+
/*
* Platform support for LPC32xx SoC
*
* Author: Kevin Wells <kevin.wells@nxp.com>
*
* Copyright (C) 2012 Roland Stigge <stigge@antcom.de>
* Copyright (C) 2010 NXP Semiconductors
*/
#include <linux/amba/pl08x.h>
#include <linux/mtd/lpc32xx_mlc.h>
#include <linux/mtd/lpc32xx_slc.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include "common.h"
static struct pl08x_channel_data pl08x_slave_channels[] = {
{
.bus_id = "nand-slc",
.min_signal = 1, /* SLC NAND Flash */
.max_signal = 1,
.periph_buses = PL08X_AHB1,
},
{
.bus_id = "nand-mlc",
.min_signal = 12, /* MLC NAND Flash */
.max_signal = 12,
.periph_buses = PL08X_AHB1,
},
};
static int pl08x_get_signal(const struct pl08x_channel_data *cd)
{
return cd->min_signal;
}
static void pl08x_put_signal(const struct pl08x_channel_data *cd, int ch)
{
}
static struct pl08x_platform_data pl08x_pd = {
/* Some reasonable memcpy defaults */
.memcpy_burst_size = PL08X_BURST_SZ_256,
.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
.slave_channels = &pl08x_slave_channels[0],
.num_slave_channels = ARRAY_SIZE(pl08x_slave_channels),
.get_xfer_signal = pl08x_get_signal,
.put_xfer_signal = pl08x_put_signal,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
};
static struct lpc32xx_slc_platform_data lpc32xx_slc_data = {
.dma_filter = pl08x_filter_id,
};
static struct lpc32xx_mlc_platform_data lpc32xx_mlc_data = {
.dma_filter = pl08x_filter_id,
};
static const struct of_dev_auxdata lpc32xx_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("arm,pl080", 0x31000000, "pl08xdmac", &pl08x_pd),
OF_DEV_AUXDATA("nxp,lpc3220-slc", 0x20020000, "20020000.flash",
&lpc32xx_slc_data),
OF_DEV_AUXDATA("nxp,lpc3220-mlc", 0x200a8000, "200a8000.flash",
&lpc32xx_mlc_data),
{ }
};
static void __init lpc3250_machine_init(void)
{
lpc32xx_serial_init();
of_platform_default_populate(NULL, lpc32xx_auxdata_lookup, NULL);
}
static const char *const lpc32xx_dt_compat[] __initconst = {
"nxp,lpc3220",
"nxp,lpc3230",
"nxp,lpc3240",
"nxp,lpc3250",
NULL
};
DT_MACHINE_START(LPC32XX_DT, "LPC32XX SoC (Flattened Device Tree)")
.atag_offset = 0x100,
.map_io = lpc32xx_map_io,
.init_machine = lpc3250_machine_init,
.dt_compat = lpc32xx_dt_compat,
MACHINE_END
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