ARM: cns3xxx: Add CNS3420 Validation Board support
This patch adds support for CNS3420VB rev 1.3 boards. With this patch
CNS3420VB boards are able to boot up to the userspace, with a console
available on UART0.
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
new file mode 100644
index 0000000..2e30c82
--- /dev/null
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -0,0 +1,148 @@
+/*
+ * Cavium Networks CNS3420 Validation Board
+ *
+ * Copyright 2000 Deep Blue Solutions Ltd
+ * Copyright 2008 ARM Limited
+ * Copyright 2008 Cavium Networks
+ * Scott Shu
+ * Copyright 2010 MontaVista Software, LLC.
+ * Anton Vorontsov <avorontsov@mvista.com>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/io.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <mach/hardware.h>
+#include <mach/cns3xxx.h>
+#include <mach/irqs.h>
+#include "core.h"
+
+/*
+ * NOR Flash
+ */
+static struct mtd_partition cns3420_nor_partitions[] = {
+ {
+ .name = "uboot",
+ .size = 0x00040000,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "kernel",
+ .size = 0x004C0000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "filesystem",
+ .size = 0x7000000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "filesystem2",
+ .size = 0x0AE0000,
+ .offset = MTDPART_OFS_APPEND,
+ }, {
+ .name = "ubootenv",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND,
+ },
+};
+
+static struct physmap_flash_data cns3420_nor_pdata = {
+ .width = 2,
+ .parts = cns3420_nor_partitions,
+ .nr_parts = ARRAY_SIZE(cns3420_nor_partitions),
+};
+
+static struct resource cns3420_nor_res = {
+ .start = CNS3XXX_FLASH_BASE,
+ .end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
+ .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
+};
+
+static struct platform_device cns3420_nor_pdev = {
+ .name = "physmap-flash",
+ .id = 0,
+ .resource = &cns3420_nor_res,
+ .num_resources = 1,
+ .dev = {
+ .platform_data = &cns3420_nor_pdata,
+ },
+};
+
+/*
+ * UART
+ */
+static void __init cns3420_early_serial_setup(void)
+{
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ static struct uart_port cns3420_serial_port = {
+ .membase = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
+ .mapbase = CNS3XXX_UART0_BASE,
+ .irq = IRQ_CNS3XXX_UART0,
+ .iotype = UPIO_MEM,
+ .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
+ .regshift = 2,
+ .uartclk = 24000000,
+ .line = 0,
+ .type = PORT_16550A,
+ .fifosize = 16,
+ };
+
+ early_serial_setup(&cns3420_serial_port);
+#endif
+}
+
+/*
+ * Initialization
+ */
+static struct platform_device *cns3420_pdevs[] __initdata = {
+ &cns3420_nor_pdev,
+};
+
+static void __init cns3420_init(void)
+{
+ platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
+
+ pm_power_off = cns3xxx_power_off;
+}
+
+static struct map_desc cns3420_io_desc[] __initdata = {
+ {
+ .virtual = CNS3XXX_UART0_BASE_VIRT,
+ .pfn = __phys_to_pfn(CNS3XXX_UART0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
+static void __init cns3420_map_io(void)
+{
+ cns3xxx_map_io();
+ iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
+
+ cns3420_early_serial_setup();
+}
+
+MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
+ .phys_io = CNS3XXX_UART0_BASE,
+ .io_pg_offst = (CNS3XXX_UART0_BASE_VIRT >> 18) & 0xfffc,
+ .boot_params = 0x00000100,
+ .map_io = cns3420_map_io,
+ .init_irq = cns3xxx_init_irq,
+ .timer = &cns3xxx_timer,
+ .init_machine = cns3420_init,
+MACHINE_END