diff options
Diffstat (limited to 'arch/arm/mach-lpc32xx/phy3250.c')
-rw-r--r-- | arch/arm/mach-lpc32xx/phy3250.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c new file mode 100644 index 000000000..66701bf43 --- /dev/null +++ b/arch/arm/mach-lpc32xx/phy3250.c @@ -0,0 +1,92 @@ +// 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 |