| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Platform support for LPC32xx SoC |
| * |
| * Author: Kevin Wells <[email protected]> |
| * |
| * Copyright (C) 2012 Roland Stigge <[email protected]> |
| * 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 |
