/*
* AP4EVB board support
*
* Copyright (C) 2010 Magnus Damm
* Copyright (C) 2008 Yoshihiro Shimoda
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/gpio.h>
#include <mach/common.h>
#include <mach/sh7372.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
/*
* Address Interface BusWidth note
* ------------------------------------------------------------------
* 0x0000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = ON
* 0x0800_0000 user area -
* 0x1000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = OFF
* 0x1400_0000 Ether (LAN9220) 16bit
* 0x1600_0000 user area - cannot use with NAND
* 0x1800_0000 user area -
* 0x1A00_0000 -
* 0x4000_0000 LPDDR2-SDRAM (POP) 32bit
*/
/*
* NOR Flash ROM
*
* SW1 | SW2 | SW7 | NOR Flash ROM
* bit1 | bit1 bit2 | bit1 | Memory allocation
* ------+------------+------+------------------
* OFF | ON OFF | ON | Area 0
* OFF | ON OFF | OFF | Area 4
*/
/*
* NAND Flash ROM
*
* SW1 | SW2 | SW7 | NAND Flash ROM
* bit1 | bit1 bit2 | bit2 | Memory allocation
* ------+------------+------+------------------
* OFF | ON OFF | ON | FCE 0
* OFF | ON OFF | OFF | FCE 1
*/
/*
* SMSC 9220
*
* SW1 SMSC 9220
* -----------------------
* ON access disable
* OFF access enable
*/
/* MTD */
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "loader",
.offset = 0x00000000,
.size = 512 * 1024,
},
{
.name = "bootenv",
.offset = MTDPART_OFS_APPEND,
.size = 512 * 1024,
},
{
.name = "kernel_ro",
.offset = MTDPART_OFS_APPEND,
.size = 8 * 1024 * 1024,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = 8 * 1024 * 1024,
},
{
.name = "data",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data nor_flash_data = {
.width = 2,
.parts = nor_flash_partitions,
.nr_parts = ARRAY_SIZE(nor_flash_partitions),
};
static struct resource nor_flash_resources[] = {
[0] = {
.start = 0x00000000,
.end = 0x08000000 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device nor_flash_device = {
.name = "physmap-flash",
.dev = {
.platform_data = &nor_flash_data,
},
.num_resources = ARRAY_SIZE(nor_flash_resources),
.resource = nor_flash_resources,
};
/* SMSC 9220 */
static struct resource smc911x_resources[] = {
{
.start = 0x14000000,
.end = 0x16000000 - 1,
.flags = IORESOURCE_MEM,
}, {
.start = 6,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct smsc911x_platform_config smsc911x_info = {
.flags = SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
};
static struct platform_device smc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smc911x_resources),
.resource = smc911x_resources,
.dev = {
.platform_data = &smsc911x_info,
},
};
static struct platform_device *ap4evb_devices[] __initdata = {
&nor_flash_device,
&smc911x_device,
};
static struct map_desc ap4evb_io_desc[] __initdata = {
/* create a 1:1 entity map for 0xe6xxxxxx
* used by CPGA, INTC and PFC.
*/
{
.virtual = 0xe6000000,
.pfn = __phys_to_pfn(0xe6000000),
.length = 256 << 20,
.type = MT_DEVICE_NONSHARED
},
};
static void __init ap4evb_map_io(void)
{
iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
/* setup early devices, clocks and console here as well */
sh7372_add_early_devices();
sh7367_clock_init(); /* use g3 clocks for now */
shmobile_setup_console();
}
static void __init ap4evb_init(void)
{
sh7372_pinmux_init();
/* enable SCIFA0 */
gpio_request(GPIO_FN_SCIFA0_TXD, NULL);
gpio_request(GPIO_FN_SCIFA0_RXD, NULL);
/* enable SMSC911X */
gpio_request(GPIO_FN_CS5A, NULL);
gpio_request(GPIO_FN_IRQ6_39, NULL);
/* enable LED 1 - 4 */
gpio_request(GPIO_PORT185, NULL);
gpio_request(GPIO_PORT186, NULL);
gpio_request(GPIO_PORT187, NULL);
gpio_request(GPIO_PORT188, NULL);
gpio_direction_output(GPIO_PORT185, 1);
gpio_direction_output(GPIO_PORT186, 1);
gpio_direction_output(GPIO_PORT187, 1);
gpio_direction_output(GPIO_PORT188, 1);
gpio_export(GPIO_PORT185, 0);
gpio_export(GPIO_PORT186, 0);
gpio_export(GPIO_PORT187, 0);
gpio_export(GPIO_PORT188, 0);
sh7372_add_standard_devices();
platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
}
MACHINE_START(AP4EVB, "ap4evb")
.phys_io = 0xe6000000,
.io_pg_offst = ((0xe6000000) >> 18) & 0xfffc,
.map_io = ap4evb_map_io,
.init_irq = sh7372_init_irq,
.init_machine = ap4evb_init,
.timer = &shmobile_timer,
MACHINE_END
