/*
* Renesas Technology Corp. SH7786 Urquell Support.
*
* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
* Copyright (C) 2009, 2010 Paul Mundt
*
* Based on board-sh7785lcr.c
* Copyright (C) 2008 Yoshihiro Shimoda
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/smc91x.h>
#include <linux/mtd/physmap.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/clk.h>
#include <linux/sh_intc.h>
#include <mach/urquell.h>
#include <cpu/sh7786.h>
#include <asm/heartbeat.h>
#include <asm/sizes.h>
#include <asm/smp-ops.h>
/*
* bit 1234 5678
*----------------------------
* SW1 0101 0010 -> Pck 33MHz version
* (1101 0010) Pck 66MHz version
* SW2 0x1x xxxx -> little endian
* 29bit mode
* SW47 0001 1000 -> CS0 : on-board flash
* CS1 : SRAM, registers, LAN, PCMCIA
* 38400 bps for SCIF1
*
* Address
* 0x00000000 - 0x04000000 (CS0) Nor Flash
* 0x04000000 - 0x04200000 (CS1) SRAM
* 0x05000000 - 0x05800000 (CS1) on board register
* 0x05800000 - 0x06000000 (CS1) LAN91C111
* 0x06000000 - 0x06400000 (CS1) PCMCIA
* 0x08000000 - 0x10000000 (CS2-CS3) DDR3
* 0x10000000 - 0x14000000 (CS4) PCIe
* 0x14000000 - 0x14800000 (CS5) Core0 LRAM/URAM
* 0x14800000 - 0x15000000 (CS5) Core1 LRAM/URAM
* 0x18000000 - 0x1C000000 (CS6) ATA/NAND-Flash
* 0x1C000000 - (CS7) SH7786 Control register
*/
/* HeartBeat */
static struct resource heartbeat_resource = {
.start = BOARDREG(SLEDR),
.end = BOARDREG(SLEDR),
.flags = IORESOURCE_MEM | IORESOURCE_MEM_16BIT,
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.num_resources = 1,
.resource = &heartbeat_resource,
};
/* LAN91C111 */
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
};
static struct resource smc91x_eth_resources[] = {
[0] = {
.name = "SMC91C111" ,
.start = 0x05800300,
.end = 0x0580030f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x360),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device smc91x_eth_device = {
.name = "smc91x",
.num_resources = ARRAY_SIZE(smc91x_eth_resources),
.resource = smc91x_eth_resources,
.dev = {
.platform_data = &smc91x_info,
},
};
/* Nor Flash */
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "loader",
.offset = 0x00000000,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE, /* Read-only */
},
{
.name = "bootenv",
.offset = MTDPART_OFS_APPEND,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE, /* Read-only */
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
},
{
.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 = NOR_FLASH_ADDR,
.end = NOR_FLASH_ADDR + NOR_FLASH_SIZE - 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,
};
static struct platform_device *urquell_devices[] __initdata = {
&heartbeat_device,
&smc91x_eth_device,
&nor_flash_device,
};
static int __init urquell_devices_setup(void)
{
/* USB */
gpio_request(GPIO_FN_USB_OVC0, NULL);
gpio_request(GPIO_FN_USB_PENC0, NULL);
/* enable LAN */
__raw_writew(__raw_readw(UBOARDREG(IRL2MSKR)) & ~0x00000001,
UBOARDREG(IRL2MSKR));
return platform_add_devices(urquell_devices,
ARRAY_SIZE(urquell_devices));
}
device_initcall(urquell_devices_setup);
static void urquell_power_off(void)
{
__raw_writew(0xa5a5, UBOARDREG(SRSTR));
}
static void __init urquell_init_irq(void)
{
plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
}
static int urquell_mode_pins(void)
{
return __raw_readw(UBOARDREG(MDSWMR));
}
static int urquell_clk_init(void)
{
struct clk *clk;
int ret;
/*
* Only handle the EXTAL case, anyone interfacing a crystal
* resonator will need to provide their own input clock.
*/
if (test_mode_pin(MODE_PIN9))
return -EINVAL;
clk = clk_get(NULL, "extal");
if (IS_ERR(clk))
return PTR_ERR(clk);
ret = clk_set_rate(clk, 33333333);
clk_put(clk);
return ret;
}
/* Initialize the board */
static void __init urquell_setup(char **cmdline_p)
{
printk(KERN_INFO "Renesas Technology Corp. Urquell support.\n");
pm_power_off = urquell_power_off;
register_smp_ops(&shx3_smp_ops);
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_urquell __initmv = {
.mv_name = "Urquell",
.mv_setup = urquell_setup,
.mv_init_irq = urquell_init_irq,
.mv_mode_pins = urquell_mode_pins,
.mv_clk_init = urquell_clk_init,
};