/*
* linux/arch/arm/mach-pxa/lubbock.c
*
* Support for the Intel DBPXA250 Development Platform.
*
* Author: Nicolas Pitre
* Created: Jun 15, 2001
* Copyright: MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/major.h>
#include <linux/fb.h>
#include <linux/interrupt.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/hardware/sa1111.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
#include <asm/arch/udc.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/mmc.h>
#include "generic.h"
#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
{
unsigned long flags;
local_irq_save(flags);
LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
local_irq_restore(flags);
}
EXPORT_SYMBOL(lubbock_set_misc_wr);
static unsigned long lubbock_irq_enabled;
static void lubbock_mask_irq(unsigned int irq)
{
int lubbock_irq = (irq - LUBBOCK_IRQ(0));
LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
}
static void lubbock_unmask_irq(unsigned int irq)
{
int lubbock_irq = (irq - LUBBOCK_IRQ(0));
/* the irq can be acknowledged only if deasserted, so it's done here */
LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
}
static struct irqchip lubbock_irq_chip = {
.ack = lubbock_mask_irq,
.mask = lubbock_mask_irq,
.unmask = lubbock_unmask_irq,
};
static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
struct pt_regs *regs)
{
unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
do {
GEDR(0) = GPIO_bit(0); /* clear our parent irq */
if (likely(pending)) {
irq = LUBBOCK_IRQ(0) + __ffs(pending);
desc = irq_desc + irq;
desc_handle_irq(irq, desc, regs);
}
pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
} while (pending);
}
static void __init lubbock_init_irq(void)
{
int irq;
pxa_init_irq();
/* setup extra lubbock irqs */
for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
set_irq_chip(irq, &lubbock_irq_chip);
set_irq_handler(irq, do_level_IRQ);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
}
set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
}
#ifdef CONFIG_PM
static int lubbock_irq_resume(struct sys_device *dev)
{
LUB_IRQ_MASK_EN = lubbock_irq_enabled;
return 0;
}
static struct sysdev_class lubbock_irq_sysclass = {
set_kset_name("cpld_irq"),
.resume = lubbock_irq_resume,
};
static struct sys_device lubbock_irq_device = {
.cls = &lubbock_irq_sysclass,
};
static int __init lubbock_irq_device_init(void)
{
int ret = sysdev_class_register(&lubbock_irq_sysclass);
if (ret == 0)
ret = sysdev_register(&lubbock_irq_device);
return ret;
}
device_initcall(lubbock_irq_device_init);
#endif
static int lubbock_udc_is_connected(void)
{
return (LUB_MISC_RD & (1 << 9)) == 0;
}
static struct pxa2xx_udc_mach_info udc_info __initdata = {
.udc_is_connected = lubbock_udc_is_connected,
// no D+ pullup; lubbock can't connect/disconnect in software
};
static struct resource sa1111_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x10001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = LUBBOCK_SA1111_IRQ,
.end = LUBBOCK_SA1111_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device sa1111_device = {
.name = "sa1111",
.id = -1,
.num_resources = ARRAY_SIZE(sa1111_resources),
.resource = sa1111_resources,
};
static struct resource smc91x_resources[] = {
[0] = {
.name = "smc91x-regs",
.start = 0x0c000000,
.end = 0x0c0fffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = LUBBOCK_ETH_IRQ,
.end = LUBBOCK_ETH_IRQ,
.flags = IORESOURCE_IRQ,
},
[2] = {
.name = "smc91x-attrib",
.start = 0x0e000000,
.end = 0x0e0fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = -1,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
static struct platform_device *devices[] __initdata = {
&sa1111_device,
&smc91x_device,
};
static struct pxafb_mach_info sharp_lm8v31 __initdata = {
.pixclock = 270000,
.xres = 640,
.yres = 480,
.bpp = 16,
.hsync_len = 1,
.left_margin = 3,
.right_margin = 3,
.vsync_len = 1,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.cmap_greyscale = 0,
.cmap_inverse = 0,
.cmap_static = 0,
.lccr0 = LCCR0_SDS,
.lccr3 = LCCR3_PCP | LCCR3_Acb(255),
};
static int lubbock_mci_init(struct device *dev, irqreturn_t (*lubbock_detect_int)(int, void *, struct pt_regs *), void *data)
{
/* setup GPIO for PXA25x MMC controller */
pxa_gpio_mode(GPIO6_MMCCLK_MD);
pxa_gpio_mode(GPIO8_MMCCS0_MD);
return 0;
}
static struct pxamci_platform_data lubbock_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = lubbock_mci_init,
};
static void __init lubbock_init(void)
{
pxa_set_udc_info(&udc_info);
set_pxa_fb_info(&sharp_lm8v31);
pxa_set_mci_info(&lubbock_mci_platform_data);
(void) platform_add_devices(devices, ARRAY_SIZE(devices));
}
static struct map_desc lubbock_io_desc[] __initdata = {
{ LUBBOCK_FPGA_VIRT, LUBBOCK_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
};
static void __init lubbock_map_io(void)
{
pxa_map_io();
iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
/* This enables the BTUART */
pxa_gpio_mode(GPIO42_BTRXD_MD);
pxa_gpio_mode(GPIO43_BTTXD_MD);
pxa_gpio_mode(GPIO44_BTCTS_MD);
pxa_gpio_mode(GPIO45_BTRTS_MD);
/* This is for the SMC chip select */
pxa_gpio_mode(GPIO79_nCS_3_MD);
/* setup sleep mode values */
PWER = 0x00000002;
PFER = 0x00000000;
PRER = 0x00000002;
PGSR0 = 0x00008000;
PGSR1 = 0x003F0202;
PGSR2 = 0x0001C000;
PCFR |= PCFR_OPDE;
}
MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
/* Maintainer: MontaVista Software Inc. */
.phys_ram = 0xa0000000,
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = lubbock_map_io,
.init_irq = lubbock_init_irq,
.timer = &pxa_timer,
.init_machine = lubbock_init,
MACHINE_END
