From 9f15d2caca102c4b79e34562296bcbf982665cb2 Mon Sep 17 00:00:00 2001
From: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Date: Thu, 16 Dec 2010 20:51:30 +0100
Subject: ARM: 6447/3: sa1100: Put nanoEngine support back in the kernel

Adds Bright Star Engineering's nanoEngine board support to the kernel.
Also:
- Adds the nanoEngine memory chip to arch/arm/mach-sa1100/cpu-sa1110.c
  (Micron MT48LC8M16A2TG-75).
- Increase in the sdram_params->name[] field length to accomodate the
  name of the memory chip.
- Clean up of header content and order of
  arch/arm/mach-sa1100/cpu-sa1110.c

Signed-off-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-sa1100/nanoengine.c | 112 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 arch/arm/mach-sa1100/nanoengine.c

(limited to 'arch/arm/mach-sa1100/nanoengine.c')

diff --git a/arch/arm/mach-sa1100/nanoengine.c b/arch/arm/mach-sa1100/nanoengine.c
new file mode 100644
index 000000000000..e4a03099e2a3
--- /dev/null
+++ b/arch/arm/mach-sa1100/nanoengine.c
@@ -0,0 +1,112 @@
+/*
+ * linux/arch/arm/mach-sa1100/nanoengine.c
+ *
+ * Bright Star Engineering's nanoEngine board init code.
+ *
+ * Copyright (C) 2009 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
+ *
+ * This program 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/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/root_dev.h>
+
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include <mach/hardware.h>
+
+#include "generic.h"
+
+/* Flash bank 0 */
+static struct mtd_partition nanoengine_partitions[] = {
+	{
+		.name	= "nanoEngine boot firmware and parameter table",
+		.size		= 0x00010000,  /* 32K */
+		.offset		= 0,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "kernel/initrd reserved",
+		.size		= 0x002f0000,
+		.offset		= 0x00010000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "experimental filesystem allocation",
+		.size		= 0x00100000,
+		.offset		= 0x00300000,
+		.mask_flags	= MTD_WRITEABLE,
+	}
+};
+
+static struct flash_platform_data nanoengine_flash_data = {
+	.map_name	= "jedec_probe",
+	.parts		= nanoengine_partitions,
+	.nr_parts	= ARRAY_SIZE(nanoengine_partitions),
+};
+
+static struct resource nanoengine_flash_resources[] = {
+	{
+		.start	= SA1100_CS0_PHYS,
+		.end	= SA1100_CS0_PHYS + SZ_32M - 1,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= SA1100_CS1_PHYS,
+		.end	= SA1100_CS1_PHYS + SZ_32M - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct map_desc nanoengine_io_desc[] __initdata = {
+	{
+		/* System Registers */
+		.virtual	= 0xf0000000,
+		.pfn		= __phys_to_pfn(0x10000000),
+		.length		= 0x00100000,
+		.type		= MT_DEVICE
+	}, {
+		/* Internal PCI Config Space */
+		.virtual	= 0xf1000000,
+		.pfn		= __phys_to_pfn(0x18A00000),
+		.length		= 0x00100000,
+		.type		= MT_DEVICE
+	}
+};
+
+static void __init nanoengine_map_io(void)
+{
+	sa1100_map_io();
+	iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc));
+
+	sa1100_register_uart(0, 1);
+	sa1100_register_uart(1, 2);
+	sa1100_register_uart(2, 3);
+	Ser1SDCR0 |= SDCR0_UART;
+	/* disable IRDA -- UART2 is used as a normal serial port */
+	Ser2UTCR4 = 0;
+	Ser2HSCR0 = 0;
+}
+
+static void __init nanoengine_init(void)
+{
+	sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources,
+		ARRAY_SIZE(nanoengine_flash_resources));
+}
+
+MACHINE_START(NANOENGINE, "BSE nanoEngine")
+	.boot_params	= 0xc0000000,
+	.map_io		= nanoengine_map_io,
+	.init_irq	= sa1100_init_irq,
+	.timer		= &sa1100_timer,
+	.init_machine	= nanoengine_init,
+MACHINE_END
-- 
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