1 files changed, 286 insertions, 0 deletions
diff --git a/arch/arm/mach-lh7a40x/arch-lpd7a40x.c b/arch/arm/mach-lh7a40x/arch-lpd7a40x.c
new file mode 100644
index 0000000..c823447
--- /dev/null
+++ b/arch/arm/mach-lh7a40x/arch-lpd7a40x.c
@@ -0,0 +1,286 @@
+/* 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