- 根目录:
- arch
- sh
- boards
- mach-highlander
- setup.c
/*
* arch/sh/boards/renesas/r7780rp/setup.c
*
* Renesas Solutions Highlander Support.
*
* Copyright (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2005 - 2008 Paul Mundt
*
* This contains support for the R7780RP-1, R7780MP, and R7785RP
* Highlander modules.
*
* 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/io.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/types.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/usb/r8a66597.h>
#include <linux/usb/m66592.h>
#include <linux/clkdev.h>
#include <net/ax88796.h>
#include <asm/machvec.h>
#include <mach/highlander.h>
#include <asm/clock.h>
#include <asm/heartbeat.h>
#include <asm/io.h>
#include <asm/io_trapped.h>
static struct r8a66597_platdata r8a66597_data = {
.xtal = R8A66597_PLATDATA_XTAL_12MHZ,
.vif = 1,
};
static struct resource r8a66597_usb_host_resources[] = {
[0] = {
.start = 0xA4200000,
.end = 0xA42000FF,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_EXT1, /* irq number */
.end = IRQ_EXT1,
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
},
};
static struct platform_device r8a66597_usb_host_device = {
.name = "r8a66597_hcd",
.id = -1,
.dev = {
.dma_mask = NULL, /* don't use dma */
.coherent_dma_mask = 0xffffffff,
.platform_data = &r8a66597_data,
},
.num_resources = ARRAY_SIZE(r8a66597_usb_host_resources),
.resource = r8a66597_usb_host_resources,
};
static struct m66592_platdata usbf_platdata = {
.xtal = M66592_PLATDATA_XTAL_24MHZ,
.vif = 1,
};
static struct resource m66592_usb_peripheral_resources[] = {
[0] = {
.name = "m66592_udc",
.start = 0xb0000000,
.end = 0xb00000FF,
.flags = IORESOURCE_MEM,
},
[1] = {
.name = "m66592_udc",
.start = IRQ_EXT4, /* irq number */
.end = IRQ_EXT4,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device m66592_usb_peripheral_device = {
.name = "m66592_udc",
.id = -1,
.dev = {
.dma_mask = NULL, /* don't use dma */
.coherent_dma_mask = 0xffffffff,
.platform_data = &usbf_platdata,
},
.num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources),
.resource = m66592_usb_peripheral_resources,
};
static struct resource cf_ide_resources[] = {
[0] = {
.start = PA_AREA5_IO + 0x1000,
.end = PA_AREA5_IO + 0x1000 + 0x08 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PA_AREA5_IO + 0x80c,
.end = PA_AREA5_IO + 0x80c + 0x16 - 1,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_CF,
.flags = IORESOURCE_IRQ,
},
};
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_OBLED,
.end = PA_OBLED,
.flags = IORESOURCE_MEM,
},
};
#ifndef CONFIG_SH_R7785RP
static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
static struct heartbeat_data heartbeat_data = {
.bit_pos = heartbeat_bit_pos,
.nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
};
#endif
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
/* R7785RP has a slightly more sensible FPGA.. */
#ifndef CONFIG_SH_R7785RP
.dev = {
.platform_data = &heartbeat_data,
},
#endif
.num_resources = ARRAY_SIZE(heartbeat_resources),
.resource = heartbeat_resources,
};
static struct ax_plat_data ax88796_platdata = {
.flags = AXFLG_HAS_93CX6,
.wordlength = 2,
.dcr_val = 0x1,
.rcr_val = 0x40,
};
static struct resource ax88796_resources[] = {
{
#ifdef CONFIG_SH_R7780RP
.start = 0xa5800400,
.end = 0xa5800400 + (0x20 * 0x2) - 1,
#else
.start = 0xa4100400,
.end = 0xa4100400 + (0x20 * 0x2) - 1,
#endif
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_AX88796,
.end = IRQ_AX88796,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ax88796_device = {
.name = "ax88796",
.id = 0,
.dev = {
.platform_data = &ax88796_platdata,
},
.num_resources = ARRAY_SIZE(ax88796_resources),
.resource = ax88796_resources,
};
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",
.offset = MTDPART_OFS_APPEND,
.size = 4 * 1024 * 1024,
},
{
.name = "data",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data nor_flash_data = {
.width = 4,
.parts = nor_flash_partitions,
.nr_parts = ARRAY_SIZE(nor_flash_partitions),
};
/* This config is flash board for mass production. */
static struct resource nor_flash_resources[] = {
[0] = {
.start = PA_NORFLASH_ADDR,
.end = PA_NORFLASH_ADDR + PA_NORFLASH_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 resource smbus_resources[] = {
[0] = {
.start = PA_SMCR,
.end = PA_SMCR + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_SMBUS,
.end = IRQ_SMBUS,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device smbus_device = {
.name = "i2c-highlander",
.id = 0,
.num_resources = ARRAY_SIZE(smbus_resources),
.resource = smbus_resources,
};
static struct i2c_board_info __initdata highlander_i2c_devices[] = {
{
I2C_BOARD_INFO("r2025sd", 0x32),
},
};
static struct platform_device *r7780rp_devices[] __initdata = {
&r8a66597_usb_host_device,
&m66592_usb_peripheral_device,
&heartbeat_device,
&smbus_device,
&nor_flash_device,
#ifndef CONFIG_SH_R7780RP
&ax88796_device,
#endif
};
/*
* The CF is connected using a 16-bit bus where 8-bit operations are
* unsupported. The linux ata driver is however using 8-bit operations, so
* insert a trapped io filter to convert 8-bit operations into 16-bit.
*/
static struct trapped_io cf_trapped_io = {
.resource = cf_ide_resources,
.num_resources = 2,
.minimum_bus_width = 16,
};
static int __init r7780rp_devices_setup(void)
{
int ret = 0;
#ifndef CONFIG_SH_R7780RP
if (register_trapped_io(&cf_trapped_io) == 0)
ret |= platform_device_register(&cf_ide_device);
#endif
ret |= platform_add_devices(r7780rp_devices,
ARRAY_SIZE(r7780rp_devices));
ret |= i2c_register_board_info(0, highlander_i2c_devices,
ARRAY_SIZE(highlander_i2c_devices));
return ret;
}
device_initcall(r7780rp_devices_setup);
/*
* Platform specific clocks
*/
static int ivdr_clk_enable(struct clk *clk)
{
__raw_writew(__raw_readw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
return 0;
}
static void ivdr_clk_disable(struct clk *clk)
{
__raw_writew(__raw_readw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
}
static struct sh_clk_ops ivdr_clk_ops = {
.enable = ivdr_clk_enable,
.disable = ivdr_clk_disable,
};
static struct clk ivdr_clk = {
.ops = &ivdr_clk_ops,
};
static struct clk *r7780rp_clocks[] = {
&ivdr_clk,
};
static struct clk_lookup lookups[] = {
/* main clocks */
CLKDEV_CON_ID("ivdr_clk", &ivdr_clk),
};
static void r7780rp_power_off(void)
{
if (mach_is_r7780mp() || mach_is_r7785rp())
__raw_writew(0x0001, PA_POFF);
}
/*
* Initialize the board
*/
static void __init highlander_setup(char **cmdline_p)
{
u16 ver = __raw_readw(PA_VERREG);
int i;
printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
mach_is_r7780rp() ? "R7780RP-1" :
mach_is_r7780mp() ? "R7780MP" :
"R7785RP");
printk(KERN_INFO "Board version: %d (revision %d), "
"FPGA version: %d (revision %d)\n",
(ver >> 12) & 0xf, (ver >> 8) & 0xf,
(ver >> 4) & 0xf, ver & 0xf);
highlander_plat_pinmux_setup();
/*
* Enable the important clocks right away..
*/
for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
struct clk *clk = r7780rp_clocks[i];
clk_register(clk);
clk_enable(clk);
}
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
__raw_writew(0x0000, PA_OBLED); /* Clear LED. */
if (mach_is_r7780rp())
__raw_writew(0x0001, PA_SDPOW); /* SD Power ON */
__raw_writew(__raw_readw(PA_IVDRCTL) | 0x01, PA_IVDRCTL); /* Si13112 */
pm_power_off = r7780rp_power_off;
}
static unsigned char irl2irq[HL_NR_IRL];
static int highlander_irq_demux(int irq)
{
if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq])
return irq;
return irl2irq[irq];
}
static void __init highlander_init_irq(void)
{
unsigned char *ucp = highlander_plat_irq_setup();
if (ucp) {
plat_irq_setup_pins(IRQ_MODE_IRL3210);
memcpy(irl2irq, ucp, HL_NR_IRL);
}
}
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_highlander __initmv = {
.mv_name = "Highlander",
.mv_setup = highlander_setup,
.mv_init_irq = highlander_init_irq,
.mv_irq_demux = highlander_irq_demux,
};