davinci: DM644x: add support for SFFSDR board

Signed-off-by: Hugo Villeneuve <hugo.villeneuve@lyrtech.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 180 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
new file mode 100644
index 000000000000..c6525e43ea33
--- /dev/null
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -0,0 +1,180 @@
+/*
+ * Lyrtech SFFSDR board support.
+ *
+ * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
+ * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
+ *
+ * Based on DV-EVM platform, original copyright follows:
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/etherdevice.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/io.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <mach/dm644x.h>
+#include <mach/common.h>
+#include <mach/i2c.h>
+#include <mach/serial.h>
+#include <mach/psc.h>
+#include <mach/mux.h>
+
+#define DAVINCI_ASYNC_EMIF_CONTROL_BASE   0x01e00000
+#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE  0x02000000
+
+struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
+        /* U-Boot Environment: Block 0
+         * UBL:                Block 1
+         * U-Boot:             Blocks 6-7 (256 kb)
+         * Integrity Kernel:   Blocks 8-31 (3 Mb)
+         * Integrity Data:     Blocks 100-END
+         */
+        {
+                .name           = "Linux Kernel",
+                .offset         = 32 * SZ_128K,
+                .size           = 16 * SZ_128K, /* 2 Mb */
+                .mask_flags     = MTD_WRITEABLE, /* Force read-only */
+        },
+        {
+                .name           = "Linux ROOT",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 256 * SZ_128K, /* 32 Mb */
+                .mask_flags     = 0, /* R/W */
+        },
+};
+
+static struct flash_platform_data davinci_sffsdr_nandflash_data = {
+        .parts          = davinci_sffsdr_nandflash_partition,
+        .nr_parts       = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
+};
+
+static struct resource davinci_sffsdr_nandflash_resource[] = {
+        {
+                .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
+                .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
+                .end            = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
+                .flags          = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device davinci_sffsdr_nandflash_device = {
+        .name           = "davinci_nand", /* Name of driver */
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &davinci_sffsdr_nandflash_data,
+        },
+        .num_resources  = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
+        .resource       = davinci_sffsdr_nandflash_resource,
+};
+
+/* Get Ethernet address from kernel boot params */
+static u8 mac_addr[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+
+static struct at24_platform_data eeprom_info = {
+        .byte_len       = (64*1024) / 8,
+        .page_size      = 32,
+        .flags          = AT24_FLAG_ADDR16,
+};
+
+static struct i2c_board_info __initdata i2c_info[] =  {
+        {
+                I2C_BOARD_INFO("24lc64", 0x50),
+                .platform_data  = &eeprom_info,
+        },
+        /* Other I2C devices:
+         * MSP430,  addr 0x23 (not used)
+         * PCA9543, addr 0x70 (setup done by U-Boot)
+         * ADS7828, addr 0x48 (ADC for voltage monitoring.)
+         */
+};
+
+static struct davinci_i2c_platform_data i2c_pdata = {
+        .bus_freq       = 20 /* kHz */,
+        .bus_delay      = 100 /* usec */,
+};
+
+static void __init sffsdr_init_i2c(void)
+{
+        davinci_init_i2c(&i2c_pdata);
+        i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
+}
+
+static struct platform_device *davinci_sffsdr_devices[] __initdata = {
+        &davinci_sffsdr_nandflash_device,
+};
+
+static struct davinci_uart_config uart_config __initdata = {
+        .enabled_uarts = (1 << 0),
+};
+
+static void __init davinci_sffsdr_map_io(void)
+{
+        davinci_map_common_io();
+        dm644x_init();
+}
+
+static __init void davinci_sffsdr_init(void)
+{
+        platform_add_devices(davinci_sffsdr_devices,
+                             ARRAY_SIZE(davinci_sffsdr_devices));
+        sffsdr_init_i2c();
+        davinci_serial_init(&uart_config);
+        setup_usb(0, 0); /* We support only peripheral mode. */
+
+        /* mux VLYNQ pins */
+        davinci_cfg_reg(DM644X_VLYNQEN);
+        davinci_cfg_reg(DM644X_VLYNQWD);
+}
+
+static __init void davinci_sffsdr_irq_init(void)
+{
+        davinci_irq_init();
+}
+
+MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
+        /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
+        .phys_io      = IO_PHYS,
+        .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
+        .boot_params  = (DAVINCI_DDR_BASE + 0x100),
+        .map_io       = davinci_sffsdr_map_io,
+        .init_irq     = davinci_sffsdr_irq_init,
+        .timer        = &davinci_timer,
+        .init_machine = davinci_sffsdr_init,
+MACHINE_END