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Diffstat (limited to 'arch/arm/mach-lh7a40x/arch-lpd7a40x.c')
-rw-r--r--arch/arm/mach-lh7a40x/arch-lpd7a40x.c286
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
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index 000000000000..c823447a150f
--- /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