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