board-polaris.c
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/*
* June 2006 Steve Glendinning <steve.glendinning@shawell.net>
*
* Polaris-specific resource declaration
*
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/smsc911x.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <asm/machvec.h>
#include <asm/heartbeat.h>
#include <cpu/gpio.h>
#include <mach-se/mach/se.h>
#define BCR2 (0xFFFFFF62)
#define WCR2 (0xFFFFFF66)
#define AREA5_WAIT_CTRL (0x1C00)
#define WAIT_STATES_10 (0x7)
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
};
static struct resource smsc911x_resources[] = {
[0] = {
.name = "smsc911x-memory",
.start = PA_EXT5,
.end = PA_EXT5 + 0x1fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.name = "smsc911x-irq",
.start = IRQ0_IRQ,
.end = IRQ0_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct smsc911x_platform_config smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device smsc911x_device = {
.name = "smsc911x",
.id = 0,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
.dev = {
.platform_data = &smsc911x_config,
},
};
static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3 };
static struct heartbeat_data heartbeat_data = {
.bit_pos = heartbeat_bit_pos,
.nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
};
static struct resource heartbeat_resource = {
.start = PORT_PCDR,
.end = PORT_PCDR,
.flags = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.dev = {
.platform_data = &heartbeat_data,
},
.num_resources = 1,
.resource = &heartbeat_resource,
};
static struct platform_device *polaris_devices[] __initdata = {
&smsc911x_device,
&heartbeat_device,
};
static int __init polaris_initialise(void)
{
u16 wcr, bcr_mask;
printk(KERN_INFO "Configuring Polaris external bus\n");
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
/* Configure area 5 with 2 wait states */
wcr = __raw_readw(WCR2);
wcr &= (~AREA5_WAIT_CTRL);
wcr |= (WAIT_STATES_10 << 10);
__raw_writew(wcr, WCR2);
/* Configure area 5 for 32-bit access */
bcr_mask = __raw_readw(BCR2);
bcr_mask |= 1 << 10;
__raw_writew(bcr_mask, BCR2);
return platform_add_devices(polaris_devices,
ARRAY_SIZE(polaris_devices));
}
arch_initcall(polaris_initialise);
static struct ipr_data ipr_irq_table[] = {
/* External IRQs */
{ IRQ0_IRQ, 0, 0, 1, }, /* IRQ0 */
{ IRQ1_IRQ, 0, 4, 1, }, /* IRQ1 */
};
static unsigned long ipr_offsets[] = {
INTC_IPRC
};
static struct ipr_desc ipr_irq_desc = {
.ipr_offsets = ipr_offsets,
.nr_offsets = ARRAY_SIZE(ipr_offsets),
.ipr_data = ipr_irq_table,
.nr_irqs = ARRAY_SIZE(ipr_irq_table),
.chip = {
.name = "sh7709-ext",
},
};
static void __init init_polaris_irq(void)
{
/* Disable all interrupts */
__raw_writew(0, BCR_ILCRA);
__raw_writew(0, BCR_ILCRB);
__raw_writew(0, BCR_ILCRC);
__raw_writew(0, BCR_ILCRD);
__raw_writew(0, BCR_ILCRE);
__raw_writew(0, BCR_ILCRF);
__raw_writew(0, BCR_ILCRG);
register_ipr_controller(&ipr_irq_desc);
}
static struct sh_machine_vector mv_polaris __initmv = {
.mv_name = "Polaris",
.mv_init_irq = init_polaris_irq,
};