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/*
* Renesas Technology Sales RTS7751R2D Support.
*
* Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
* Copyright (C) 2004 - 2007 Paul Mundt
*
* 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/pata_platform.h>
#include <linux/serial_8250.h>
#include <linux/sm501.h>
#include <linux/pm.h>
#include <asm/machvec.h>
#include <asm/rts7751r2d.h>
#include <asm/voyagergx.h>
#include <asm/io.h>
static void __init voyagergx_serial_init(void)
{
unsigned long val;
/*
* GPIO Control
*/
val = readl((void __iomem *)GPIO_MUX_HIGH);
val |= 0x00001fe0;
writel(val, (void __iomem *)GPIO_MUX_HIGH);
/*
* Power Mode Gate
*/
val = readl((void __iomem *)POWER_MODE0_GATE);
val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1);
writel(val, (void __iomem *)POWER_MODE0_GATE);
val = readl((void __iomem *)POWER_MODE1_GATE);
val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1);
writel(val, (void __iomem *)POWER_MODE1_GATE);
}
static struct resource cf_ide_resources[] = {
[0] = {
.start = PA_AREA5_IO + 0x1000,
.end = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PA_AREA5_IO + 0x80c,
.end = PA_AREA5_IO + 0x80c,
.flags = IORESOURCE_MEM,
},
#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
[2] = {
.start = IRQ_CF_IDE,
.flags = IORESOURCE_IRQ,
},
#endif
};
static struct pata_platform_info pata_info = {
.ioport_shift = 1,
};
static struct platform_device cf_ide_device = {
.name = "pata_platform",
.id = -1,
.num_resources = ARRAY_SIZE(cf_ide_resources),
.resource = cf_ide_resources,
.dev = {
.platform_data = &pata_info,
},
};
static struct resource heartbeat_resources[] = {
[0] = {
.start = PA_OUTPORT,
.end = PA_OUTPORT,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.num_resources = ARRAY_SIZE(heartbeat_resources),
.resource = heartbeat_resources,
};
#ifdef CONFIG_MFD_SM501
static struct plat_serial8250_port uart_platform_data[] = {
{
.membase = (void __iomem *)VOYAGER_UART_BASE,
.mapbase = VOYAGER_UART_BASE,
.iotype = UPIO_MEM,
.irq = IRQ_SM501_U0,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
.regshift = 2,
.uartclk = (9600 * 16),
},
{ 0 },
};
static struct platform_device uart_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = uart_platform_data,
},
};
static struct resource sm501_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x13e00000 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x13e00000,
.end = 0x13ffffff,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_SM501_CV,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sm501_device = {
.name = "sm501",
.id = -1,
.num_resources = ARRAY_SIZE(sm501_resources),
.resource = sm501_resources,
};
#endif /* CONFIG_MFD_SM501 */
static struct platform_device *rts7751r2d_devices[] __initdata = {
#ifdef CONFIG_MFD_SM501
&uart_device,
&sm501_device,
#endif
&cf_ide_device,
&heartbeat_device,
};
static int __init rts7751r2d_devices_setup(void)
{
return platform_add_devices(rts7751r2d_devices,
ARRAY_SIZE(rts7751r2d_devices));
}
__initcall(rts7751r2d_devices_setup);
static void rts7751r2d_power_off(void)
{
ctrl_outw(0x0001, PA_POWOFF);
}
static inline unsigned char is_ide_ioaddr(unsigned long addr)
{
return ((cf_ide_resources[0].start <= addr &&
addr <= cf_ide_resources[0].end) ||
(cf_ide_resources[1].start <= addr &&
addr <= cf_ide_resources[1].end));
}
void rts7751r2d_writeb(u8 b, void __iomem *addr)
{
unsigned long tmp = (unsigned long __force)addr;
if (is_ide_ioaddr(tmp))
ctrl_outw((u16)b, tmp);
else
ctrl_outb(b, tmp);
}
u8 rts7751r2d_readb(void __iomem *addr)
{
unsigned long tmp = (unsigned long __force)addr;
if (is_ide_ioaddr(tmp))
return ctrl_inw(tmp) & 0xff;
else
return ctrl_inb(tmp);
}
/*
* Initialize the board
*/
static void __init rts7751r2d_setup(char **cmdline_p)
{
u16 ver = ctrl_inw(PA_VERREG);
printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
(ver >> 4) & 0xf, ver & 0xf);
ctrl_outw(0x0000, PA_OUTPORT);
pm_power_off = rts7751r2d_power_off;
voyagergx_serial_init();
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_rts7751r2d __initmv = {
.mv_name = "RTS7751R2D",
.mv_setup = rts7751r2d_setup,
.mv_init_irq = init_rts7751r2d_IRQ,
.mv_irq_demux = rts7751r2d_irq_demux,
.mv_writeb = rts7751r2d_writeb,
.mv_readb = rts7751r2d_readb,
#if defined(CONFIG_MFD_SM501) && defined(CONFIG_USB_OHCI_HCD)
.mv_consistent_alloc = voyagergx_consistent_alloc,
.mv_consistent_free = voyagergx_consistent_free,
#endif
};
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