You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
286 lines
7.2 KiB
286 lines
7.2 KiB
/* arch/arm/mach-lh7a40x/arch-lpd7a40x.c
|
|
*
|
|
* Copyright (C) 2004 Logic Product Development
|
|
*
|
|
* 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/tty.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include "common.h"
|
|
|
|
static struct resource smc91x_resources[] = {
|
|
[0] = {
|
|
.start = CPLD00_PHYS,
|
|
.end = CPLD00_PHYS + CPLD00_SIZE - 1, /* Only needs 16B */
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
|
|
[1] = {
|
|
.start = IRQ_LPD7A40X_ETH_INT,
|
|
.end = IRQ_LPD7A40X_ETH_INT,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
|
|
};
|
|
|
|
static struct platform_device smc91x_device = {
|
|
.name = "smc91x",
|
|
.id = 0,
|
|
.num_resources = ARRAY_SIZE(smc91x_resources),
|
|
.resource = smc91x_resources,
|
|
};
|
|
|
|
static struct resource lh7a40x_usbclient_resources[] = {
|
|
[0] = {
|
|
.start = USB_PHYS,
|
|
.end = (USB_PHYS + 0xFF),
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = IRQ_USBINTR,
|
|
.end = IRQ_USBINTR,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static u64 lh7a40x_usbclient_dma_mask = 0xffffffffUL;
|
|
|
|
static struct platform_device lh7a40x_usbclient_device = {
|
|
.name = "lh7a40x_udc",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &lh7a40x_usbclient_dma_mask,
|
|
.coherent_dma_mask = 0xffffffffUL,
|
|
},
|
|
.num_resources = ARRAY_SIZE (lh7a40x_usbclient_resources),
|
|
.resource = lh7a40x_usbclient_resources,
|
|
};
|
|
|
|
#if defined (CONFIG_ARCH_LH7A404)
|
|
|
|
static struct resource lh7a404_usbhost_resources [] = {
|
|
[0] = {
|
|
.start = USBH_PHYS,
|
|
.end = (USBH_PHYS + 0xFF),
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = IRQ_USHINTR,
|
|
.end = IRQ_USHINTR,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static u64 lh7a404_usbhost_dma_mask = 0xffffffffUL;
|
|
|
|
static struct platform_device lh7a404_usbhost_device = {
|
|
.name = "lh7a404-ohci",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &lh7a404_usbhost_dma_mask,
|
|
.coherent_dma_mask = 0xffffffffUL,
|
|
},
|
|
.num_resources = ARRAY_SIZE (lh7a404_usbhost_resources),
|
|
.resource = lh7a404_usbhost_resources,
|
|
};
|
|
|
|
#endif
|
|
|
|
static struct platform_device *lpd7a40x_devs[] __initdata = {
|
|
&smc91x_device,
|
|
&lh7a40x_usbclient_device,
|
|
#if defined (CONFIG_ARCH_LH7A404)
|
|
&lh7a404_usbhost_device,
|
|
#endif
|
|
};
|
|
|
|
extern void lpd7a400_map_io (void);
|
|
|
|
static void __init lpd7a40x_init (void)
|
|
{
|
|
CPLD_CONTROL |= (1<<6); /* Mask USB1 connection IRQ */
|
|
CPLD_CONTROL &= ~(0
|
|
| (1<<1) /* Disable LCD */
|
|
| (1<<0) /* Enable WLAN */
|
|
);
|
|
|
|
platform_add_devices (lpd7a40x_devs, ARRAY_SIZE (lpd7a40x_devs));
|
|
}
|
|
|
|
static void lh7a40x_ack_cpld_irq (u32 irq)
|
|
{
|
|
/* CPLD doesn't have ack capability */
|
|
}
|
|
|
|
static void lh7a40x_mask_cpld_irq (u32 irq)
|
|
{
|
|
switch (irq) {
|
|
case IRQ_LPD7A40X_ETH_INT:
|
|
CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x4;
|
|
break;
|
|
case IRQ_LPD7A400_TS:
|
|
CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void lh7a40x_unmask_cpld_irq (u32 irq)
|
|
{
|
|
switch (irq) {
|
|
case IRQ_LPD7A40X_ETH_INT:
|
|
CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x4;
|
|
break;
|
|
case IRQ_LPD7A400_TS:
|
|
CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct irqchip lpd7a40x_cpld_chip = {
|
|
.ack = lh7a40x_ack_cpld_irq,
|
|
.mask = lh7a40x_mask_cpld_irq,
|
|
.unmask = lh7a40x_unmask_cpld_irq,
|
|
};
|
|
|
|
static void lpd7a40x_cpld_handler (unsigned int irq, struct irqdesc *desc,
|
|
struct pt_regs *regs)
|
|
{
|
|
unsigned int mask = CPLD_INTERRUPTS;
|
|
|
|
desc->chip->ack (irq);
|
|
|
|
if ((mask & 0x1) == 0) /* WLAN */
|
|
IRQ_DISPATCH (IRQ_LPD7A40X_ETH_INT);
|
|
|
|
if ((mask & 0x2) == 0) /* Touch */
|
|
IRQ_DISPATCH (IRQ_LPD7A400_TS);
|
|
|
|
desc->chip->unmask (irq); /* Level-triggered need this */
|
|
}
|
|
|
|
|
|
void __init lh7a40x_init_board_irq (void)
|
|
{
|
|
int irq;
|
|
|
|
/* Rev A (v2.8): PF0, PF1, PF2, and PF3 are available IRQs.
|
|
PF7 supports the CPLD.
|
|
Rev B (v3.4): PF0, PF1, and PF2 are available IRQs.
|
|
PF3 supports the CPLD.
|
|
(Some) LPD7A404 prerelease boards report a version
|
|
number of 0x16, but we force an override since the
|
|
hardware is of the newer variety.
|
|
*/
|
|
|
|
unsigned char cpld_version = CPLD_REVISION;
|
|
int pinCPLD = (cpld_version == 0x28) ? 7 : 3;
|
|
|
|
#if defined CONFIG_MACH_LPD7A404
|
|
cpld_version = 0x34; /* Coerce LPD7A404 to RevB */
|
|
#endif
|
|
|
|
/* First, configure user controlled GPIOF interrupts */
|
|
|
|
GPIO_PFDD &= ~0x0f; /* PF0-3 are inputs */
|
|
GPIO_INTTYPE1 &= ~0x0f; /* PF0-3 are level triggered */
|
|
GPIO_INTTYPE2 &= ~0x0f; /* PF0-3 are active low */
|
|
barrier ();
|
|
GPIO_GPIOFINTEN |= 0x0f; /* Enable PF0, PF1, PF2, and PF3 IRQs */
|
|
|
|
/* Then, configure CPLD interrupt */
|
|
|
|
CPLD_INTERRUPTS = 0x9c; /* Disable all CPLD interrupts */
|
|
GPIO_PFDD &= ~(1 << pinCPLD); /* Make input */
|
|
GPIO_INTTYPE1 |= (1 << pinCPLD); /* Edge triggered */
|
|
GPIO_INTTYPE2 &= ~(1 << pinCPLD); /* Active low */
|
|
barrier ();
|
|
GPIO_GPIOFINTEN |= (1 << pinCPLD); /* Enable */
|
|
|
|
/* Cascade CPLD interrupts */
|
|
|
|
for (irq = IRQ_BOARD_START;
|
|
irq < IRQ_BOARD_START + NR_IRQ_BOARD; ++irq) {
|
|
set_irq_chip (irq, &lpd7a40x_cpld_chip);
|
|
set_irq_handler (irq, do_edge_IRQ);
|
|
set_irq_flags (irq, IRQF_VALID);
|
|
}
|
|
|
|
set_irq_chained_handler ((cpld_version == 0x28)
|
|
? IRQ_CPLD_V28
|
|
: IRQ_CPLD_V34,
|
|
lpd7a40x_cpld_handler);
|
|
}
|
|
|
|
static struct map_desc lpd7a400_io_desc[] __initdata = {
|
|
{ IO_VIRT, IO_PHYS, IO_SIZE, MT_DEVICE },
|
|
/* Mapping added to work around chip select problems */
|
|
{ IOBARRIER_VIRT, IOBARRIER_PHYS, IOBARRIER_SIZE, MT_DEVICE },
|
|
{ CF_VIRT, CF_PHYS, CF_SIZE, MT_DEVICE },
|
|
/* This mapping is redundant since the smc driver performs another. */
|
|
/* { CPLD00_VIRT, CPLD00_PHYS, CPLD00_SIZE, MT_DEVICE }, */
|
|
{ CPLD02_VIRT, CPLD02_PHYS, CPLD02_SIZE, MT_DEVICE },
|
|
{ CPLD06_VIRT, CPLD06_PHYS, CPLD06_SIZE, MT_DEVICE },
|
|
{ CPLD08_VIRT, CPLD08_PHYS, CPLD08_SIZE, MT_DEVICE },
|
|
{ CPLD0C_VIRT, CPLD0C_PHYS, CPLD0C_SIZE, MT_DEVICE },
|
|
{ CPLD0E_VIRT, CPLD0E_PHYS, CPLD0E_SIZE, MT_DEVICE },
|
|
{ CPLD10_VIRT, CPLD10_PHYS, CPLD10_SIZE, MT_DEVICE },
|
|
{ CPLD12_VIRT, CPLD12_PHYS, CPLD12_SIZE, MT_DEVICE },
|
|
{ CPLD14_VIRT, CPLD14_PHYS, CPLD14_SIZE, MT_DEVICE },
|
|
{ CPLD16_VIRT, CPLD16_PHYS, CPLD16_SIZE, MT_DEVICE },
|
|
{ CPLD18_VIRT, CPLD18_PHYS, CPLD18_SIZE, MT_DEVICE },
|
|
{ CPLD1A_VIRT, CPLD1A_PHYS, CPLD1A_SIZE, MT_DEVICE },
|
|
};
|
|
|
|
void __init
|
|
lpd7a400_map_io(void)
|
|
{
|
|
iotable_init (lpd7a400_io_desc, ARRAY_SIZE (lpd7a400_io_desc));
|
|
|
|
/* Fixup (improve) Static Memory Controller settings */
|
|
SMC_BCR0 = 0x200039af; /* Boot Flash */
|
|
SMC_BCR6 = 0x1000fbe0; /* CPLD */
|
|
SMC_BCR7 = 0x1000b2c2; /* Compact Flash */
|
|
}
|
|
|
|
#ifdef CONFIG_MACH_LPD7A400
|
|
|
|
MACHINE_START (LPD7A400, "Logic Product Development LPD7A400-10")
|
|
MAINTAINER ("Marc Singer")
|
|
BOOT_MEM (0xc0000000, 0x80000000, io_p2v (0x80000000))
|
|
BOOT_PARAMS (0xc0000100)
|
|
MAPIO (lpd7a400_map_io)
|
|
INITIRQ (lh7a400_init_irq)
|
|
.timer = &lh7a40x_timer,
|
|
INIT_MACHINE (lpd7a40x_init)
|
|
MACHINE_END
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_MACH_LPD7A404
|
|
|
|
MACHINE_START (LPD7A404, "Logic Product Development LPD7A404-10")
|
|
MAINTAINER ("Marc Singer")
|
|
BOOT_MEM (0xc0000000, 0x80000000, io_p2v (0x80000000))
|
|
BOOT_PARAMS (0xc0000100)
|
|
MAPIO (lpd7a400_map_io)
|
|
INITIRQ (lh7a404_init_irq)
|
|
.timer = &lh7a40x_timer,
|
|
INIT_MACHINE (lpd7a40x_init)
|
|
MACHINE_END
|
|
|
|
#endif
|
|
|