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- /* 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/platform_device.h>
- #include <linux/interrupt.h>
- #include <linux/irq.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"
- #define CPLD_INT_NETHERNET (1<<0)
- #define CPLD_INTMASK_ETHERNET (1<<2)
- #if defined (CONFIG_MACH_LPD7A400)
- # define CPLD_INT_NTOUCH (1<<1)
- # define CPLD_INTMASK_TOUCH (1<<3)
- # define CPLD_INT_PEN (1<<4)
- # define CPLD_INTMASK_PEN (1<<4)
- # define CPLD_INT_PIRQ (1<<4)
- #endif
- #define CPLD_INTMASK_CPLD (1<<7)
- #define CPLD_INT_CPLD (1<<6)
- #define CPLD_CONTROL_SWINT (1<<7) /* Disable all CPLD IRQs */
- #define CPLD_CONTROL_OCMSK (1<<6) /* Mask USB1 connect IRQ */
- #define CPLD_CONTROL_PDRV (1<<5) /* PCC_nDRV high */
- #define CPLD_CONTROL_USB1C (1<<4) /* USB1 connect IRQ active */
- #define CPLD_CONTROL_USB1P (1<<3) /* USB1 power disable */
- #define CPLD_CONTROL_AWKP (1<<2) /* Auto-wakeup disabled */
- #define CPLD_CONTROL_LCD_ENABLE (1<<1) /* LCD Vee enable */
- #define CPLD_CONTROL_WRLAN_NENABLE (1<<0) /* SMC91x power disable */
- 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 + PAGE_SIZE),
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_USB,
- .end = IRQ_USB,
- .flags = IORESOURCE_IRQ,
- },
- };
- static u64 lh7a40x_usbclient_dma_mask = 0xffffffffUL;
- static struct platform_device lh7a40x_usbclient_device = {
- // .name = "lh7a40x_udc",
- .name = "lh7-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)
- {
- #if defined (CONFIG_MACH_LPD7A400)
- CPLD_CONTROL |= 0
- | CPLD_CONTROL_SWINT /* Disable software interrupt */
- | CPLD_CONTROL_OCMSK; /* Mask USB1 connection IRQ */
- CPLD_CONTROL &= ~(0
- | CPLD_CONTROL_LCD_ENABLE /* Disable LCD */
- | CPLD_CONTROL_WRLAN_NENABLE /* Enable SMC91x */
- );
- #endif
- #if defined (CONFIG_MACH_LPD7A404)
- CPLD_CONTROL &= ~(0
- | CPLD_CONTROL_WRLAN_NENABLE /* Enable SMC91x */
- );
- #endif
- platform_add_devices (lpd7a40x_devs, ARRAY_SIZE (lpd7a40x_devs));
- #if defined (CONFIG_FB_ARMCLCD)
- lh7a40x_clcd_init ();
- #endif
- }
- static void lh7a40x_ack_cpld_irq (u32 irq)
- {
- /* CPLD doesn't have ack capability, but some devices may */
- #if defined (CPLD_INTMASK_TOUCH)
- /* The touch control *must* mask the interrupt because the
- * interrupt bit is read by the driver to determine if the pen
- * is still down. */
- if (irq == IRQ_TOUCH)
- CPLD_INTERRUPTS |= CPLD_INTMASK_TOUCH;
- #endif
- }
- static void lh7a40x_mask_cpld_irq (u32 irq)
- {
- switch (irq) {
- case IRQ_LPD7A40X_ETH_INT:
- CPLD_INTERRUPTS |= CPLD_INTMASK_ETHERNET;
- break;
- #if defined (IRQ_TOUCH)
- case IRQ_TOUCH:
- CPLD_INTERRUPTS |= CPLD_INTMASK_TOUCH;
- break;
- #endif
- }
- }
- static void lh7a40x_unmask_cpld_irq (u32 irq)
- {
- switch (irq) {
- case IRQ_LPD7A40X_ETH_INT:
- CPLD_INTERRUPTS &= ~CPLD_INTMASK_ETHERNET;
- break;
- #if defined (IRQ_TOUCH)
- case IRQ_TOUCH:
- CPLD_INTERRUPTS &= ~CPLD_INTMASK_TOUCH;
- break;
- #endif
- }
- }
- static struct irq_chip lpd7a40x_cpld_chip = {
- .name = "CPLD",
- .ack = lh7a40x_ack_cpld_irq,
- .mask = lh7a40x_mask_cpld_irq,
- .unmask = lh7a40x_unmask_cpld_irq,
- };
- static void lpd7a40x_cpld_handler (unsigned int irq, struct irq_desc *desc)
- {
- unsigned int mask = CPLD_INTERRUPTS;
- desc->chip->ack (irq);
- if ((mask & (1<<0)) == 0) /* WLAN */
- IRQ_DISPATCH (IRQ_LPD7A40X_ETH_INT);
- #if defined (IRQ_TOUCH)
- if ((mask & (1<<1)) == 0) /* Touch */
- IRQ_DISPATCH (IRQ_TOUCH);
- #endif
- 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 */
- /* Disable all CPLD interrupts */
- #if defined (CONFIG_MACH_LPD7A400)
- CPLD_INTERRUPTS = CPLD_INTMASK_TOUCH | CPLD_INTMASK_PEN
- | CPLD_INTMASK_ETHERNET;
- /* *** FIXME: don't know why we need 7 and 4. 7 is way wrong
- and 4 is uncefined. */
- // (1<<7)|(1<<4)|(1<<3)|(1<<2);
- #endif
- #if defined (CONFIG_MACH_LPD7A404)
- CPLD_INTERRUPTS = CPLD_INTMASK_ETHERNET;
- /* *** FIXME: don't know why we need 6 and 5, neither is defined. */
- // (1<<6)|(1<<5)|(1<<3);
- #endif
- GPIO_PFDD &= ~(1 << pinCPLD); /* Make input */
- GPIO_INTTYPE1 &= ~(1 << pinCPLD); /* Level 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, handle_level_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 lpd7a40x_io_desc[] __initdata = {
- {
- .virtual = IO_VIRT,
- .pfn = __phys_to_pfn(IO_PHYS),
- .length = IO_SIZE,
- .type = MT_DEVICE
- },
- { /* Mapping added to work around chip select problems */
- .virtual = IOBARRIER_VIRT,
- .pfn = __phys_to_pfn(IOBARRIER_PHYS),
- .length = IOBARRIER_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CF_VIRT,
- .pfn = __phys_to_pfn(CF_PHYS),
- .length = CF_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD02_VIRT,
- .pfn = __phys_to_pfn(CPLD02_PHYS),
- .length = CPLD02_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD06_VIRT,
- .pfn = __phys_to_pfn(CPLD06_PHYS),
- .length = CPLD06_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD08_VIRT,
- .pfn = __phys_to_pfn(CPLD08_PHYS),
- .length = CPLD08_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD08_VIRT,
- .pfn = __phys_to_pfn(CPLD08_PHYS),
- .length = CPLD08_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD0A_VIRT,
- .pfn = __phys_to_pfn(CPLD0A_PHYS),
- .length = CPLD0A_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD0C_VIRT,
- .pfn = __phys_to_pfn(CPLD0C_PHYS),
- .length = CPLD0C_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD0E_VIRT,
- .pfn = __phys_to_pfn(CPLD0E_PHYS),
- .length = CPLD0E_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD10_VIRT,
- .pfn = __phys_to_pfn(CPLD10_PHYS),
- .length = CPLD10_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD12_VIRT,
- .pfn = __phys_to_pfn(CPLD12_PHYS),
- .length = CPLD12_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD14_VIRT,
- .pfn = __phys_to_pfn(CPLD14_PHYS),
- .length = CPLD14_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD16_VIRT,
- .pfn = __phys_to_pfn(CPLD16_PHYS),
- .length = CPLD16_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD18_VIRT,
- .pfn = __phys_to_pfn(CPLD18_PHYS),
- .length = CPLD18_SIZE,
- .type = MT_DEVICE
- },
- {
- .virtual = CPLD1A_VIRT,
- .pfn = __phys_to_pfn(CPLD1A_PHYS),
- .length = CPLD1A_SIZE,
- .type = MT_DEVICE
- },
- };
- void __init
- lpd7a40x_map_io(void)
- {
- iotable_init (lpd7a40x_io_desc, ARRAY_SIZE (lpd7a40x_io_desc));
- }
- #ifdef CONFIG_MACH_LPD7A400
- MACHINE_START (LPD7A400, "Logic Product Development LPD7A400-10")
- /* Maintainer: Marc Singer */
- .phys_io = 0x80000000,
- .io_pg_offst = ((io_p2v (0x80000000))>>18) & 0xfffc,
- .boot_params = 0xc0000100,
- .map_io = lpd7a40x_map_io,
- .init_irq = 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 */
- .phys_io = 0x80000000,
- .io_pg_offst = ((io_p2v (0x80000000))>>18) & 0xfffc,
- .boot_params = 0xc0000100,
- .map_io = lpd7a40x_map_io,
- .init_irq = lh7a404_init_irq,
- .timer = &lh7a40x_timer,
- .init_machine = lpd7a40x_init,
- MACHINE_END
- #endif
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