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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/mach-lpc32xx/phy3250.c
parentInitial commit. (diff)
downloadlinux-upstream/5.10.209.tar.xz
linux-upstream/5.10.209.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-lpc32xx/phy3250.c')
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c92
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