diff options
Diffstat (limited to 'target/linux/cns3xxx/files/arch/arm/mach-cns3xxx')
10 files changed, 1907 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S new file mode 100644 index 000000000..c02a382a9 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/cns3xxx_fiq.S @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * + * 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/linkage.h> +#include <asm/assembler.h> +#include <asm/asm-offsets.h> + +#define D_CACHE_LINE_SIZE 32 + + .text + +/* + * R8 - DMA Start Address + * R9 - DMA Length + * R10 - DMA Direction + * R11 - DMA type + * R12 - fiq_buffer Address + * R13 - DMA type Address +*/ + + .global cns3xxx_fiq_end +ENTRY(cns3xxx_fiq_start) + mov r8, #0 + str r8, [r13] + + ldr r9, [r12] + ldr r8, [r9] + add r8, r8, #1 + str r8, [r9] + + ldmib r12, {r8, r9, r10} + and r11, r10, #0x3000000 + and r10, r10, #0xff + + teq r11, #0x1000000 + beq cns3xxx_dma_map_area + teq r11, #0x2000000 + beq cns3xxx_dma_unmap_area + b cns3xxx_dma_flush_range + +cns3xxx_fiq_exit: + mov r8, #0 + str r8, [r12, #12] + mcr p15, 0, r8, c7, c10, 4 @ drain write buffer + subs pc, lr, #4 + +cns3xxx_dma_map_area: + add r9, r9, r8 + teq r10, #DMA_FROM_DEVICE + beq cns3xxx_dma_inv_range + b cns3xxx_dma_clean_range + +cns3xxx_dma_unmap_area: + add r9, r9, r8 + teq r10, #DMA_TO_DEVICE + bne cns3xxx_dma_inv_range + b cns3xxx_fiq_exit + +cns3xxx_dma_flush_range: + bic r8, r8, #D_CACHE_LINE_SIZE - 1 +1: + mcr p15, 0, r8, c7, c14, 1 @ clean & invalidate D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + b cns3xxx_fiq_exit + +cns3xxx_dma_clean_range: + bic r8, r8, #D_CACHE_LINE_SIZE - 1 +1: + mcr p15, 0, r8, c7, c10, 1 @ clean D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + b cns3xxx_fiq_exit + +cns3xxx_dma_inv_range: + tst r8, #D_CACHE_LINE_SIZE - 1 + bic r8, r8, #D_CACHE_LINE_SIZE - 1 + mcrne p15, 0, r8, c7, c10, 1 @ clean D line + tst r9, #D_CACHE_LINE_SIZE - 1 + bic r9, r9, #D_CACHE_LINE_SIZE - 1 + mcrne p15, 0, r9, c7, c14, 1 @ clean & invalidate D line +1: + mcr p15, 0, r8, c7, c6, 1 @ invalidate D line + add r8, r8, #D_CACHE_LINE_SIZE + cmp r8, r9 + blo 1b + b cns3xxx_fiq_exit + +cns3xxx_fiq_end: diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c new file mode 100644 index 000000000..8fccbbf45 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/gpio.c @@ -0,0 +1,277 @@ +/* + * Copyright 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Tim Harvey <tharvey@gateworks.com> + * + * This file 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/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/irq.h> + +#include <asm/mach/irq.h> + +/* + * Registers + */ +#define GPIO_INPUT 0x04 +#define GPIO_DIR 0x08 +#define GPIO_SET 0x10 +#define GPIO_CLEAR 0x14 +#define GPIO_INTERRUPT_ENABLE 0x20 +#define GPIO_INTERRUPT_RAW_STATUS 0x24 +#define GPIO_INTERRUPT_MASKED_STATUS 0x28 +#define GPIO_INTERRUPT_MASK 0x2C +#define GPIO_INTERRUPT_CLEAR 0x30 +#define GPIO_INTERRUPT_TRIGGER_METHOD 0x34 +#define GPIO_INTERRUPT_TRIGGER_BOTH_EDGES 0x38 +#define GPIO_INTERRUPT_TRIGGER_TYPE 0x3C + +#define GPIO_INTERRUPT_TRIGGER_METHOD_EDGE 0 +#define GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL 1 +#define GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE 0 +#define GPIO_INTERRUPT_TRIGGER_EDGE_BOTH 1 +#define GPIO_INTERRUPT_TRIGGER_TYPE_RISING 0 +#define GPIO_INTERRUPT_TRIGGER_TYPE_FALLING 1 +#define GPIO_INTERRUPT_TRIGGER_TYPE_HIGH 0 +#define GPIO_INTERRUPT_TRIGGER_TYPE_LOW 1 + +struct cns3xxx_gpio_chip { + struct gpio_chip chip; + spinlock_t lock; + void __iomem *base; + int secondary_irq_base; +}; + +static struct cns3xxx_gpio_chip cns3xxx_gpio_chips[2]; +static int cns3xxx_gpio_chip_count; + +static inline void +__set_direction(struct cns3xxx_gpio_chip *cchip, unsigned pin, int input) +{ + u32 reg; + + reg = __raw_readl(cchip->base + GPIO_DIR); + if (input) + reg |= 1 << pin; + else + reg &= !(1 << pin); + __raw_writel(reg, cchip->base + GPIO_DIR); +} + +/* + * GENERIC_GPIO primatives + */ +static int cns3xxx_gpio_direction_input(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + unsigned long flags; + + spin_lock_irqsave(&cchip->lock, flags); + __set_direction(cchip, pin, 1); + spin_unlock_irqrestore(&cchip->lock, flags); + + return 0; +} + +static int cns3xxx_gpio_get(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + int val; + + val = ((__raw_readl(cchip->base + GPIO_INPUT) >> pin) & 0x1); + + return val; +} + +static int cns3xxx_gpio_direction_output(struct gpio_chip *chip, unsigned pin, int level) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + unsigned long flags; + + spin_lock_irqsave(&cchip->lock, flags); + if (level) + __raw_writel(1 << pin, cchip->base + GPIO_SET); + else + __raw_writel(1 << pin, cchip->base + GPIO_CLEAR); + __set_direction(cchip, pin, 0); + spin_unlock_irqrestore(&cchip->lock, flags); + + return 0; +} + +static void cns3xxx_gpio_set(struct gpio_chip *chip, unsigned pin, + int level) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + + if (level) + __raw_writel(1 << pin, cchip->base + GPIO_SET); + else + __raw_writel(1 << pin, cchip->base + GPIO_CLEAR); +} + +static int cns3xxx_gpio_to_irq(struct gpio_chip *chip, unsigned pin) +{ + struct cns3xxx_gpio_chip *cchip = + container_of(chip, struct cns3xxx_gpio_chip, chip); + + return cchip->secondary_irq_base + pin; +} + + +/* + * IRQ support + */ + +/* one interrupt per GPIO controller (GPIOA/GPIOB) + * this is called in task context, with IRQs enabled + */ +static void cns3xxx_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) +{ + struct cns3xxx_gpio_chip *cchip = irq_get_handler_data(irq); + struct irq_chip *chip = irq_get_chip(irq); + struct irq_chip_generic *gc = irq_desc_get_chip_data(desc); + struct irq_chip_type *ct = gc->chip_types; + u16 i; + u32 reg; + + chained_irq_enter(chip, desc); /* mask and ack the base interrupt */ + + /* see which pin(s) triggered the interrupt */ + reg = __raw_readl(cchip->base + GPIO_INTERRUPT_RAW_STATUS); + for (i = 0; i < 32; i++) { + if (reg & (1 << i)) { + /* let the generic IRQ layer handle an interrupt */ + generic_handle_irq(cchip->secondary_irq_base + i); + } + } + + chained_irq_exit(chip, desc); /* unmask the base interrupt */ +} + +static int cns3xxx_gpio_irq_set_type(struct irq_data *d, u32 irqtype) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct cns3xxx_gpio_chip *cchip = gc->private; + u32 gpio = d->irq - cchip->secondary_irq_base; + unsigned long flags; + u32 method, edges, type; + + spin_lock_irqsave(&cchip->lock, flags); + method = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_METHOD); + edges = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_BOTH_EDGES); + type = __raw_readl(cchip->base + GPIO_INTERRUPT_TRIGGER_TYPE); + method &= ~(1 << gpio); + edges &= ~(1 << gpio); + type &= ~(1 << gpio); + + switch(irqtype) { + case IRQ_TYPE_EDGE_RISING: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_RISING << gpio); + break; + case IRQ_TYPE_EDGE_FALLING: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_SINGLE << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_FALLING << gpio); + break; + case IRQ_TYPE_EDGE_BOTH: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_EDGE << gpio); + edges |= (GPIO_INTERRUPT_TRIGGER_EDGE_BOTH << gpio); + break; + case IRQ_TYPE_LEVEL_LOW: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_LOW << gpio); + break; + case IRQ_TYPE_LEVEL_HIGH: + method |= (GPIO_INTERRUPT_TRIGGER_METHOD_LEVEL << gpio); + type |= (GPIO_INTERRUPT_TRIGGER_TYPE_HIGH << gpio); + break; + default: + printk(KERN_WARNING "No irq type\n"); + spin_unlock_irqrestore(&cchip->lock, flags); + return -EINVAL; + } + + __raw_writel(method, cchip->base + GPIO_INTERRUPT_TRIGGER_METHOD); + __raw_writel(edges, cchip->base + GPIO_INTERRUPT_TRIGGER_BOTH_EDGES); + __raw_writel(type, cchip->base + GPIO_INTERRUPT_TRIGGER_TYPE); + spin_unlock_irqrestore(&cchip->lock, flags); + + if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + __irq_set_handler_locked(d->irq, handle_level_irq); + else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) + __irq_set_handler_locked(d->irq, handle_edge_irq); + + return 0; +} + +void __init cns3xxx_gpio_init(int gpio_base, int ngpio, + u32 base, int irq, int secondary_irq_base) +{ + struct cns3xxx_gpio_chip *cchip; + struct irq_chip_generic *gc; + struct irq_chip_type *ct; + char gc_label[16]; + + if (cns3xxx_gpio_chip_count == ARRAY_SIZE(cns3xxx_gpio_chips)) + return; + + snprintf(gc_label, sizeof(gc_label), "cns3xxx_gpio%d", + cns3xxx_gpio_chip_count); + + cchip = cns3xxx_gpio_chips + cns3xxx_gpio_chip_count; + cchip->chip.label = kstrdup(gc_label, GFP_KERNEL); + cchip->chip.direction_input = cns3xxx_gpio_direction_input; + cchip->chip.get = cns3xxx_gpio_get; + cchip->chip.direction_output = cns3xxx_gpio_direction_output; + cchip->chip.set = cns3xxx_gpio_set; + cchip->chip.to_irq = cns3xxx_gpio_to_irq; + cchip->chip.base = gpio_base; + cchip->chip.ngpio = ngpio; + cchip->chip.can_sleep = 0; + spin_lock_init(&cchip->lock); + cchip->base = (void __iomem *)base; + cchip->secondary_irq_base = secondary_irq_base; + + BUG_ON(gpiochip_add(&cchip->chip) < 0); + cns3xxx_gpio_chip_count++; + + /* clear GPIO interrupts */ + __raw_writel(0xffff, cchip->base + GPIO_INTERRUPT_CLEAR); + + /* + * IRQ chip init + */ + gc = irq_alloc_generic_chip("cns3xxx_gpio_irq", 1, secondary_irq_base, + cchip->base, handle_edge_irq); + gc->private = cchip; + + ct = gc->chip_types; + ct->type = IRQ_TYPE_EDGE_FALLING; + ct->regs.ack = GPIO_INTERRUPT_CLEAR; + ct->regs.enable = GPIO_INTERRUPT_ENABLE; + ct->chip.irq_ack = irq_gc_ack_set_bit; + ct->chip.irq_enable = irq_gc_unmask_enable_reg; + ct->chip.irq_disable = irq_gc_mask_disable_reg; + ct->chip.irq_set_type = cns3xxx_gpio_irq_set_type; + ct->handler = handle_edge_irq; + + irq_setup_generic_chip(gc, IRQ_MSK(ngpio), IRQ_GC_INIT_MASK_CACHE, + IRQ_NOREQUEST, 0); + + irq_set_chained_handler(irq, cns3xxx_gpio_irq_handler); + irq_set_handler_data(irq, cchip); +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S new file mode 100644 index 000000000..456fd67f9 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S @@ -0,0 +1,42 @@ +/* + * linux/arch/arm/mach-cns3xxx/headsmp.S + * + * Cloned from linux/arch/arm/plat-versatile/headsmp.S + * + * Copyright (c) 2003 ARM Limited + * All Rights Reserved + * + * 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/linkage.h> +#include <linux/init.h> + + __INIT + +/* + * CNS3XXX specific entry point for secondary CPUs. This provides + * a "holding pen" into which all secondary cores are held until we're + * ready for them to initialise. + */ +ENTRY(cns3xxx_secondary_startup) + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #15 + adr r4, 1f + ldmia r4, {r5, r6} + sub r4, r4, r5 + add r6, r6, r4 +pen: ldr r7, [r6] + cmp r7, r0 + bne pen + + /* + * we've been released from the holding pen: secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + + .align +1: .long . + .long pen_release diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c new file mode 100644 index 000000000..be0d499a3 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/hotplug.c @@ -0,0 +1,130 @@ +/* linux arch/arm/mach-cns3xxx/hotplug.c + * + * Cloned from linux/arch/arm/mach-realview/hotplug.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * 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/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> + +#include <asm/cacheflush.h> + +extern volatile int pen_release; + +static inline void cpu_enter_lowpower(void) +{ + unsigned int v; + + flush_cache_all(); + asm volatile( + " mcr p15, 0, %1, c7, c5, 0\n" + " mcr p15, 0, %1, c7, c10, 4\n" + /* + * Turn off coherency + */ + " mrc p15, 0, %0, c1, c0, 1\n" + " bic %0, %0, %3\n" + " mcr p15, 0, %0, c1, c0, 1\n" + " mrc p15, 0, %0, c1, c0, 0\n" + " bic %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 0\n" + : "=&r" (v) + : "r" (0), "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + +static inline void cpu_leave_lowpower(void) +{ + unsigned int v; + + asm volatile( + "mrc p15, 0, %0, c1, c0, 0\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c1, c0, 0\n" + " mrc p15, 0, %0, c1, c0, 1\n" + " orr %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 1\n" + : "=&r" (v) + : "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + +static inline void platform_do_lowpower(unsigned int cpu, int *spurious) +{ + /* + * there is no power-control hardware on this platform, so all + * we can do is put the core into WFI; this is safe as the calling + * code will have already disabled interrupts + */ + for (;;) { + /* + * here's the WFI + */ + asm(".word 0xe320f003\n" + : + : + : "memory", "cc"); + + if (pen_release == cpu) { + /* + * OK, proper wakeup, we're done + */ + break; + } + + /* + * Getting here, means that we have come out of WFI without + * having been woken up - this shouldn't happen + * + * Just note it happening - when we're woken, we can report + * its occurrence. + */ + (*spurious)++; + } +} + +int platform_cpu_kill(unsigned int cpu) +{ + return 1; +} + +/* + * platform-specific code to shutdown a CPU + * + * Called with IRQs disabled + */ +void platform_cpu_die(unsigned int cpu) +{ + int spurious = 0; + + /* + * we're ready for shutdown now, so do it + */ + cpu_enter_lowpower(); + platform_do_lowpower(cpu, &spurious); + + /* + * bring this CPU back into the world of cache + * coherency, and then restore interrupts + */ + cpu_leave_lowpower(); + + if (spurious) + pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious); +} + +int platform_cpu_disable(unsigned int cpu) +{ + /* + * we don't allow CPU 0 to be shutdown (it is still too special + * e.g. clock tick interrupts) + */ + return cpu == 0 ? -EPERM : 0; +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h new file mode 100644 index 000000000..8c66748ac --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/gpio.h @@ -0,0 +1,17 @@ +/* + * arch/arm/mach-cns3xxx/include/mach/gpio.h + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + */ +#ifndef __ASM_ARCH_CNS3XXX_GPIO_H +#define __ASM_ARCH_CNS3XXX_GPIO_H + +#include <linux/kernel.h> + +extern void __init cns3xxx_gpio_init(int gpio_base, int ngpio, + u32 base, int irq, int secondary_irq_base); + +#endif diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/platform.h b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/platform.h new file mode 100644 index 000000000..f286d0dfe --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/platform.h @@ -0,0 +1,26 @@ +/* + * arch/arm/mach-cns3xxx/include/mach/platform.h + * + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com + * + * This file 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. + * + */ + +#ifndef __ASM_ARCH_PLATFORM_H +#define __ASM_ARCH_PLATFORM_H + +#ifndef __ASSEMBLY__ + +/* Information about built-in Ethernet MAC interfaces */ +struct cns3xxx_plat_info { + u8 ports; /* Bitmap of enabled Ports */ + u8 hwaddr[4][6]; + u32 phy[3]; +}; + +#endif /* __ASM_ARCH_PLATFORM_H */ +#endif diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h new file mode 100644 index 000000000..e5bc56823 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/include/mach/smp.h @@ -0,0 +1,8 @@ +#ifndef __MACH_SMP_H +#define __MACH_SMP_H + +extern void smp_dma_map_area(const void *, size_t, int); +extern void smp_dma_unmap_area(const void *, size_t, int); +extern void smp_dma_flush_range(const void *, const void *); + +#endif diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c new file mode 100644 index 000000000..854318355 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c @@ -0,0 +1,935 @@ +/* + * Gateworks Corporation Laguna Platform + * + * Copyright 2000 Deep Blue Solutions Ltd + * Copyright 2008 ARM Limited + * Copyright 2008 Cavium Networks + * Scott Shu + * Copyright 2010 MontaVista Software, LLC. + * Anton Vorontsov <avorontsov@mvista.com> + * Copyright 2011 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Copyright 2012 Gateworks Corporation + * Tim Harvey <tharvey@gateworks.com> + * + * This file 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/init.h> +#include <linux/kernel.h> +#include <linux/compiler.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/dma-mapping.h> +#include <linux/serial_core.h> +#include <linux/serial_8250.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> +#include <linux/leds.h> +#include <linux/i2c.h> +#include <linux/i2c/at24.h> +#include <linux/i2c/pca953x.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/if_ether.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> +#include <mach/cns3xxx.h> +#include <mach/irqs.h> +#include <mach/platform.h> +#include <mach/pm.h> +#include <mach/gpio.h> +#include <asm/hardware/gic.h> +#include "core.h" +#include "devices.h" + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +// Config 1 Bitmap +#define ETH0_LOAD BIT(0) +#define ETH1_LOAD BIT(1) +#define ETH2_LOAD BIT(2) +#define SATA0_LOAD BIT(3) +#define SATA1_LOAD BIT(4) +#define PCM_LOAD BIT(5) +#define I2S_LOAD BIT(6) +#define SPI0_LOAD BIT(7) +#define SPI1_LOAD BIT(8) +#define PCIE0_LOAD BIT(9) +#define PCIE1_LOAD BIT(10) +#define USB0_LOAD BIT(11) +#define USB1_LOAD BIT(12) +#define USB1_ROUTE BIT(13) +#define SD_LOAD BIT(14) +#define UART0_LOAD BIT(15) +#define UART1_LOAD BIT(16) +#define UART2_LOAD BIT(17) +#define MPCI0_LOAD BIT(18) +#define MPCI1_LOAD BIT(19) +#define MPCI2_LOAD BIT(20) +#define MPCI3_LOAD BIT(21) +#define FP_BUT_LOAD BIT(22) +#define FP_BUT_HEADER_LOAD BIT(23) +#define FP_LED_LOAD BIT(24) +#define FP_LED_HEADER_LOAD BIT(25) +#define FP_TAMPER_LOAD BIT(26) +#define HEADER_33V_LOAD BIT(27) +#define SATA_POWER_LOAD BIT(28) +#define FP_POWER_LOAD BIT(29) +#define GPIO_HEADER_LOAD BIT(30) +#define GSP_BAT_LOAD BIT(31) + +// Config 2 Bitmap +#define FAN_LOAD BIT(0) +#define SPI_FLASH_LOAD BIT(1) +#define NOR_FLASH_LOAD BIT(2) +#define GPS_LOAD BIT(3) +#define SUPPLY_5V_LOAD BIT(6) +#define SUPPLY_33V_LOAD BIT(7) + +struct laguna_board_info { + char model[16]; + u32 config_bitmap; + u32 config2_bitmap; + u8 nor_flash_size; + u8 spi_flash_size; +}; + +static struct laguna_board_info laguna_info __initdata; + +/* + * NOR Flash + */ +static struct mtd_partition laguna_nor_partitions[] = { + { + .name = "uboot", + .size = SZ_256K, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "params", + .size = SZ_128K, + .offset = SZ_256K, + }, { + .name = "kernel", + .size = SZ_2M, + .offset = SZ_256K + SZ_128K, + }, { + .name = "rootfs", + .size = SZ_16M - SZ_256K - SZ_128K - SZ_2M, + .offset = SZ_256K + SZ_128K + SZ_2M, + }, +}; + +static struct physmap_flash_data laguna_nor_pdata = { + .width = 2, + .parts = laguna_nor_partitions, + .nr_parts = ARRAY_SIZE(laguna_nor_partitions), +}; + +static struct resource laguna_nor_res = { + .start = CNS3XXX_FLASH_BASE, + .end = CNS3XXX_FLASH_BASE + SZ_128M - 1, + .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT, +}; + +static struct platform_device laguna_nor_pdev = { + .name = "physmap-flash", + .id = 0, + .resource = &laguna_nor_res, + .num_resources = 1, + .dev = { + .platform_data = &laguna_nor_pdata, + }, +}; + +/* + * SPI + */ +static struct mtd_partition laguna_spi_partitions[] = { + { + .name = "uboot", + .size = SZ_256K, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "params", + .size = SZ_256K, + .offset = SZ_256K, + }, { + .name = "kernel", + .size = SZ_1M + SZ_512K, + .offset = SZ_512K, + }, { + .name = "rootfs", + .size = SZ_16M - SZ_2M, + .offset = SZ_2M, + }, +}; + +static struct flash_platform_data laguna_spi_pdata = { + .parts = laguna_spi_partitions, + .nr_parts = ARRAY_SIZE(laguna_spi_partitions), +}; + +static struct spi_board_info __initdata laguna_spi_devices[] = { + { + .modalias = "m25p80", + .platform_data = &laguna_spi_pdata, + .max_speed_hz = 50000000, + .bus_num = 1, + .chip_select = 0, + }, +}; + +static struct platform_device laguna_spi_controller = { + .name = "cns3xxx_spi", +}; + +/* + * LED's + */ +static struct gpio_led laguna_gpio_leds[] = { + { + .name = "user1", /* Green Led */ + .gpio = 115, + .active_low = 1, + },{ + .name = "user2", /* Red Led */ + .gpio = 114, + .active_low = 1, + },{ + .name = "pwr1", /* Green Led */ + .gpio = 116, + .active_low = 1, + },{ + .name = "pwr2", /* Yellow Led */ + .gpio = 117, + .active_low = 1, + },{ + .name = "txd1", /* Green Led */ + .gpio = 118, + .active_low = 1, + },{ + .name = "txd2", /* Yellow Led */ + .gpio = 119, + .active_low = 1, + },{ + .name = "rxd1", /* Green Led */ + .gpio = 120, + .active_low = 1, + },{ + .name = "rxd2", /* Yellow Led */ + .gpio = 121, + .active_low = 1, + },{ + .name = "ser1", /* Green Led */ + .gpio = 122, + .active_low = 1, + },{ + .name = "ser2", /* Yellow Led */ + .gpio = 123, + .active_low = 1, + },{ + .name = "enet1", /* Green Led */ + .gpio = 124, + .active_low = 1, + },{ + .name = "enet2", /* Yellow Led */ + .gpio = 125, + .active_low = 1, + },{ + .name = "sig1_1", /* Green Led */ + .gpio = 126, + .active_low = 1, + },{ + .name = "sig1_2", /* Yellow Led */ + .gpio = 127, + .active_low = 1, + },{ + .name = "sig2_1", /* Green Led */ + .gpio = 128, + .active_low = 1, + },{ + .name = "sig2_2", /* Yellow Led */ + .gpio = 129, + .active_low = 1, + },{ + .name = "sig3_1", /* Green Led */ + .gpio = 130, + .active_low = 1, + },{ + .name = "sig3_2", /* Yellow Led */ + .gpio = 131, + .active_low = 1, + },{ + .name = "net1", /*Green Led */ + .gpio = 109, + .active_low = 1, + },{ + .name = "net2", /* Red Led */ + .gpio = 110, + .active_low = 1, + },{ + .name = "mod1", /* Green Led */ + .gpio = 111, + .active_low = 1, + },{ + .name = "mod2", /* Red Led */ + .gpio = 112, + .active_low = 1, + }, +}; + +static struct gpio_led_platform_data laguna_gpio_leds_data = { + .num_leds = 22, + .leds = laguna_gpio_leds, +}; + +static struct platform_device laguna_gpio_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev.platform_data = &laguna_gpio_leds_data, +}; + +/* + * Ethernet + */ +static struct cns3xxx_plat_info laguna_net_data = { + .ports = 0, + .phy = { + 0, + 1, + 2, + }, +}; + +static struct platform_device laguna_net_device = { + .name = "cns3xxx_eth", + .id = 0, + .dev.platform_data = &laguna_net_data, +}; + +/* + * UART + */ +static void __init laguna_early_serial_setup(void) +{ +#ifdef CONFIG_SERIAL_8250_CONSOLE + static struct uart_port laguna_serial_port = { + .membase = (void __iomem *)CNS3XXX_UART0_BASE_VIRT, + .mapbase = CNS3XXX_UART0_BASE, + .irq = IRQ_CNS3XXX_UART0, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE, + .regshift = 2, + .uartclk = 24000000, + .line = 0, + .type = PORT_16550A, + .fifosize = 16, + }; + + early_serial_setup(&laguna_serial_port); +#endif +} + +static struct resource laguna_uart_resources[] = { + { + .start = CNS3XXX_UART0_BASE, + .end = CNS3XXX_UART0_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + },{ + .start = CNS3XXX_UART2_BASE, + .end = CNS3XXX_UART2_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + },{ + .start = CNS3XXX_UART2_BASE, + .end = CNS3XXX_UART2_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM + }, +}; + +static struct plat_serial8250_port laguna_uart_data[] = { + { + .membase = (char*) (CNS3XXX_UART0_BASE_VIRT), + .mapbase = (CNS3XXX_UART0_BASE), + .irq = IRQ_CNS3XXX_UART0, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + },{ + .membase = (char*) (CNS3XXX_UART1_BASE_VIRT), + .mapbase = (CNS3XXX_UART1_BASE), + .irq = IRQ_CNS3XXX_UART1, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + },{ + .membase = (char*) (CNS3XXX_UART2_BASE_VIRT), + .mapbase = (CNS3XXX_UART2_BASE), + .irq = IRQ_CNS3XXX_UART2, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST, + .regshift = 2, + .uartclk = 24000000, + .type = PORT_16550A, + }, + { }, +}; + +static struct platform_device laguna_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = laguna_uart_data, + .num_resources = 3, + .resource = laguna_uart_resources +}; + +/* + * USB + */ +static struct resource cns3xxx_usb_ehci_resources[] = { + [0] = { + .start = CNS3XXX_USB_BASE, + .end = CNS3XXX_USB_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_EHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_ehci_device = { + .name = "cns3xxx-ehci", + .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources), + .resource = cns3xxx_usb_ehci_resources, + .dev = { + .dma_mask = &cns3xxx_usb_ehci_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct resource cns3xxx_usb_ohci_resources[] = { + [0] = { + .start = CNS3XXX_USB_OHCI_BASE, + .end = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_OHCI, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_ohci_device = { + .name = "cns3xxx-ohci", + .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources), + .resource = cns3xxx_usb_ohci_resources, + .dev = { + .dma_mask = &cns3xxx_usb_ohci_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct resource cns3xxx_usb_otg_resources[] = { + [0] = { + .start = CNS3XXX_USBOTG_BASE, + .end = CNS3XXX_USBOTG_BASE + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_CNS3XXX_USB_OTG, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 cns3xxx_usb_otg_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device cns3xxx_usb_otg_device = { + .name = "dwc_otg", + .num_resources = ARRAY_SIZE(cns3xxx_usb_otg_resources), + .resource = cns3xxx_usb_otg_resources, + .dev = { + .dma_mask = &cns3xxx_usb_otg_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +/* + * I2C + */ +static struct resource laguna_i2c_resource[] = { + { + .start = CNS3XXX_SSP_BASE + 0x20, + .end = 0x7100003f, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_CNS3XXX_I2C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device laguna_i2c_controller = { + .name = "cns3xxx-i2c", + .num_resources = 2, + .resource = laguna_i2c_resource, +}; + +static struct memory_accessor *at24_mem_acc; + +static void at24_setup(struct memory_accessor *mem_acc, void *context) +{ + char buf[16]; + + at24_mem_acc = mem_acc; + + /* Read MAC addresses */ + if (at24_mem_acc->read(at24_mem_acc, buf, 0x100, 6) == 6) + memcpy(&laguna_net_data.hwaddr[0], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x106, 6) == 6) + memcpy(&laguna_net_data.hwaddr[1], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x10C, 6) == 6) + memcpy(&laguna_net_data.hwaddr[2], buf, ETH_ALEN); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x112, 6) == 6) + memcpy(&laguna_net_data.hwaddr[3], buf, ETH_ALEN); + + /* Read out Model Information */ + if (at24_mem_acc->read(at24_mem_acc, buf, 0x130, 16) == 16) + memcpy(&laguna_info.model, buf, 16); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x140, 1) == 1) + memcpy(&laguna_info.nor_flash_size, buf, 1); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x141, 1) == 1) + memcpy(&laguna_info.spi_flash_size, buf, 1); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x142, 4) == 4) + memcpy(&laguna_info.config_bitmap, buf, 4); + if (at24_mem_acc->read(at24_mem_acc, buf, 0x146, 4) == 4) + memcpy(&laguna_info.config2_bitmap, buf, 4); +}; + +static struct at24_platform_data laguna_eeprom_info = { + .byte_len = 1024, + .page_size = 16, + .flags = AT24_FLAG_READONLY, + .setup = at24_setup, +}; + +static struct pca953x_platform_data laguna_pca_data = { + .gpio_base = 100, + .irq_base = -1, +}; + +static struct pca953x_platform_data laguna_pca2_data = { + .gpio_base = 116, + .irq_base = -1, +}; + +static struct i2c_board_info __initdata laguna_i2c_devices[] = { + { + I2C_BOARD_INFO("pca9555", 0x23), + .platform_data = &laguna_pca_data, + },{ + I2C_BOARD_INFO("pca9555", 0x27), + .platform_data = &laguna_pca2_data, + },{ + I2C_BOARD_INFO("gsp", 0x29), + },{ + I2C_BOARD_INFO ("24c08",0x50), + .platform_data = &laguna_eeprom_info, + },{ + I2C_BOARD_INFO("ds1672", 0x68), + }, +}; + +/* + * Watchdog + */ + +static struct resource laguna_watchdog_resources[] = { + [0] = { + .start = CNS3XXX_TC11MP_TWD_BASE + 0x100, // CPU0 watchdog + .end = CNS3XXX_TC11MP_TWD_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_LOCALWDOG, + .end = IRQ_LOCALWDOG, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device laguna_watchdog = { + .name = "mpcore_wdt", + .id = -1, + .num_resources = ARRAY_SIZE(laguna_watchdog_resources), + .resource = laguna_watchdog_resources, +}; + +/* + * GPIO + */ + +static struct gpio laguna_gpio_gw2391[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_IN , "*USB_FAULT#" }, + { 5, GPIOF_OUT_INIT_LOW , "*USB0_PCI_SEL" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*USB1_PCI_SEL" }, + { 8, GPIOF_OUT_INIT_HIGH, "*PERST#" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN#" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, +}; + +static struct gpio laguna_gpio_gw2388[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 3, GPIOF_IN , "*USB_FAULT#" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 100, GPIOF_OUT_INIT_HIGH, "*USER_PB#" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, +}; + +static struct gpio laguna_gpio_gw2387[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_IN , "*USB_FAULT#" }, + { 5, GPIOF_OUT_INIT_LOW , "*USB_PCI_SEL" }, + { 6, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "*V5_EN" }, + { 108, GPIOF_IN , "DIO0" }, + { 109, GPIOF_IN , "DIO1" }, + { 110, GPIOF_IN , "DIO2" }, + { 111, GPIOF_IN , "DIO3" }, + { 112, GPIOF_IN , "DIO4" }, + { 113, GPIOF_IN , "DIO5" }, +}; + +static struct gpio laguna_gpio_gw2384[] = { + { 0, GPIOF_IN , "*GSC_IRQ#" }, + { 1, GPIOF_OUT_INIT_HIGH, "*USB_HST_VBUS_EN" }, + { 2, GPIOF_IN , "*USB_HST_FAULT#" }, + { 5, GPIOF_IN , "*USB_OTG_FAULT#" }, + { 6, GPIOF_OUT_INIT_LOW , "*USB_HST_PCI_SEL" }, + { 7, GPIOF_OUT_INIT_LOW , "*GSM_SEL0" }, + { 8, GPIOF_OUT_INIT_LOW , "*GSM_SEL1" }, + { 9, GPIOF_OUT_INIT_LOW , "*FP_SER_EN" }, + { 12, GPIOF_OUT_INIT_LOW , "J10_DIOLED0" }, + { 13, GPIOF_OUT_INIT_HIGH, "*I2CMUX_RST#" }, + { 14, GPIOF_OUT_INIT_LOW , "J10_DIOLED1" }, + { 15, GPIOF_OUT_INIT_LOW , "J10_DIOLED2" }, + { 100, GPIOF_IN , "*USER_PB#" }, + { 103, GPIOF_OUT_INIT_HIGH, "V5_EN" }, + { 108, GPIOF_IN , "J9_DIOGSC0" }, +}; + +static struct gpio laguna_gpio_gw2383[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 8, GPIOF_IN , "GPIO1" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, +}; + +static struct gpio laguna_gpio_gw2382[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 2, GPIOF_OUT_INIT_HIGH, "*PCIE_RST#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 4, GPIOF_IN , "GPIO1" }, + { 9, GPIOF_OUT_INIT_HIGH, "*USB_VBUS_EN" }, + { 10, GPIOF_OUT_INIT_HIGH, "*USB_PCI_SEL#" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, +}; + +static struct gpio laguna_gpio_gw2380[] = { + { 0, GPIOF_IN , "*GPS_PPS" }, + { 1, GPIOF_IN , "*GSC_IRQ#" }, + { 3, GPIOF_IN , "GPIO0" }, + { 8, GPIOF_IN , "GPIO1" }, + { 100, GPIOF_IN , "DIO0" }, + { 101, GPIOF_IN , "DIO1" }, + { 102, GPIOF_IN , "DIO2" }, + { 103, GPIOF_IN , "DIO3" }, +}; + +/* + * Initialization + */ +static void __init laguna_init(void) +{ + cns3xxx_l2x0_init(); + + platform_device_register(&laguna_watchdog); + + platform_device_register(&laguna_i2c_controller); + + i2c_register_board_info(0, ARRAY_AND_SIZE(laguna_i2c_devices)); + + pm_power_off = cns3xxx_power_off; +} + +static struct map_desc laguna_io_desc[] __initdata = { + { + .virtual = CNS3XXX_UART0_BASE_VIRT, + .pfn = __phys_to_pfn(CNS3XXX_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + },{ + .virtual = CNS3XXX_UART1_BASE_VIRT, + .pfn = __phys_to_pfn(CNS3XXX_UART1_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + },{ + .virtual = CNS3XXX_UART2_BASE_VIRT, + .pfn = __phys_to_pfn(CNS3XXX_UART2_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +static void __init laguna_map_io(void) +{ + cns3xxx_common_init(); + cns3xxx_pcie_iotable_init(); + iotable_init(ARRAY_AND_SIZE(laguna_io_desc)); + laguna_early_serial_setup(); +} + +static int laguna_register_gpio(struct gpio *array, size_t num) +{ + int i, err, ret; + + ret = 0; + for (i = 0; i < num; i++, array++) { + const char *label = array->label; + if (label[0] == '*') + label++; + err = gpio_request_one(array->gpio, array->flags, label); + if (err) + ret = err; + else { + err = gpio_export(array->gpio, array->label[0] != '*'); + } + } + return ret; +} + +static int __init laguna_pcie_init(void) +{ + if (!machine_is_gw2388()) + return 0; + + return cns3xxx_pcie_init(); +} +subsys_initcall(laguna_pcie_init); + +static int __init laguna_model_setup(void) +{ + u32 __iomem *mem; + u32 reg; + + printk("Running on Gateworks Laguna %s\n", laguna_info.model); + cns3xxx_gpio_init( 0, 32, CNS3XXX_GPIOA_BASE_VIRT, IRQ_CNS3XXX_GPIOA, + NR_IRQS_CNS3XXX); + cns3xxx_gpio_init(32, 32, CNS3XXX_GPIOB_BASE_VIRT, IRQ_CNS3XXX_GPIOB, + NR_IRQS_CNS3XXX + 32); + + if (strncmp(laguna_info.model, "GW", 2) == 0) { + if (laguna_info.config_bitmap & ETH0_LOAD) + laguna_net_data.ports |= BIT(0); + if (laguna_info.config_bitmap & ETH1_LOAD) + laguna_net_data.ports |= BIT(1); + if (laguna_info.config_bitmap & ETH2_LOAD) + laguna_net_data.ports |= BIT(2); + if (laguna_net_data.ports) + platform_device_register(&laguna_net_device); + + if ((laguna_info.config_bitmap & SATA0_LOAD) || + (laguna_info.config_bitmap & SATA1_LOAD)) + cns3xxx_ahci_init(); + + if (laguna_info.config_bitmap & (USB0_LOAD)) { + cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB); + + /* DRVVBUS pins share with GPIOA */ + mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0014); + reg = __raw_readl(mem); + reg |= 0x8; + __raw_writel(reg, mem); + + /* Enable OTG */ + mem = (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0808); + reg = __raw_readl(mem); + reg &= ~(1 << 10); + __raw_writel(reg, mem); + + platform_device_register(&cns3xxx_usb_otg_device); + } + + if (laguna_info.config_bitmap & (USB1_LOAD)) { + platform_device_register(&cns3xxx_usb_ehci_device); + platform_device_register(&cns3xxx_usb_ohci_device); + } + + if (laguna_info.config_bitmap & (SD_LOAD)) + cns3xxx_sdhci_init(); + + if (laguna_info.config_bitmap & (UART0_LOAD)) + laguna_uart.num_resources = 1; + if (laguna_info.config_bitmap & (UART1_LOAD)) + laguna_uart.num_resources = 2; + if (laguna_info.config_bitmap & (UART2_LOAD)) + laguna_uart.num_resources = 3; + platform_device_register(&laguna_uart); + + if (laguna_info.config2_bitmap & (NOR_FLASH_LOAD)) { + switch (laguna_info.nor_flash_size) { + case 1: + laguna_nor_partitions[3].size = SZ_8M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_8M - 1; + break; + case 2: + laguna_nor_partitions[3].size = SZ_16M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_16M - 1; + break; + case 3: + laguna_nor_partitions[3].size = SZ_32M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_32M - 1; + break; + case 4: + laguna_nor_partitions[3].size = SZ_64M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_64M - 1; + break; + case 5: + laguna_nor_partitions[3].size = SZ_128M - SZ_256K - SZ_128K - SZ_2M; + laguna_nor_res.end = CNS3XXX_FLASH_BASE + SZ_128M - 1; + break; + } + platform_device_register(&laguna_nor_pdev); + } + + if (laguna_info.config2_bitmap & (SPI_FLASH_LOAD)) { + switch (laguna_info.spi_flash_size) { + case 1: + laguna_spi_partitions[3].size = SZ_4M - SZ_2M; + break; + case 2: + laguna_spi_partitions[3].size = SZ_8M - SZ_2M; + break; + case 3: + laguna_spi_partitions[3].size = SZ_16M - SZ_2M; + break; + case 4: + laguna_spi_partitions[3].size = SZ_32M - SZ_2M; + break; + case 5: + laguna_spi_partitions[3].size = SZ_64M - SZ_2M; + break; + } + spi_register_board_info(ARRAY_AND_SIZE(laguna_spi_devices)); + } + + if ((laguna_info.config_bitmap & SPI0_LOAD) || + (laguna_info.config_bitmap & SPI1_LOAD)) + platform_device_register(&laguna_spi_controller); + + /* + * Do any model specific setup not known by the bitmap by matching + * the first 6 characters of the model name + */ + + if ( (strncmp(laguna_info.model, "GW2388", 6) == 0) + || (strncmp(laguna_info.model, "GW2389", 6) == 0) ) + { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2388)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2387", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2387)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2384", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2384)); + // configure LED's + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2383", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2383)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2382", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2382)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds_data.num_leds = 1; + } else if (strncmp(laguna_info.model, "GW2380", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2380)); + // configure LED's + laguna_gpio_leds[0].gpio = 107; + laguna_gpio_leds[1].gpio = 106; + laguna_gpio_leds_data.num_leds = 2; + } else if (strncmp(laguna_info.model, "GW2391", 6) == 0) { + // configure GPIO's + laguna_register_gpio(ARRAY_AND_SIZE(laguna_gpio_gw2391)); + // configure LED's + laguna_gpio_leds_data.num_leds = 2; + } + platform_device_register(&laguna_gpio_leds_device); + } else { + // Do some defaults here, not sure what yet + } + return 0; +} +late_initcall(laguna_model_setup); + +MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform") + .atag_offset = 0x100, + .map_io = laguna_map_io, + .init_irq = cns3xxx_init_irq, + .timer = &cns3xxx_timer, + .handle_irq = gic_handle_irq, + .init_machine = laguna_init, + .restart = cns3xxx_restart, +MACHINE_END diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c new file mode 100644 index 000000000..5e1111cf6 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/localtimer.c @@ -0,0 +1,26 @@ +/* linux/arch/arm/mach-cns3xxx/localtimer.c + * + * Cloned from linux/arch/arm/mach-realview/localtimer.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * 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/clockchips.h> + +#include <asm/irq.h> +#include <asm/localtimer.h> + +/* + * Setup the local clock events for a CPU. + */ +int __cpuinit local_timer_setup(struct clock_event_device *evt) +{ + evt->irq = IRQ_LOCALTIMER; + twd_timer_setup(evt); + return 0; +} diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c new file mode 100644 index 000000000..16ad56265 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/platsmp.c @@ -0,0 +1,350 @@ +/* + * linux/arch/arm/mach-cns3xxx/platsmp.c + * + * Copyright (C) 2002 ARM Ltd. + * Copyright 2012 Gateworks Corporation + * Chris Lang <clang@gateworks.com> + * Tim Harvey <tharvey@gateworks.com> + * + * All Rights Reserved + * + * 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/init.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/smp.h> +#include <linux/io.h> + +#include <asm/cacheflush.h> +#include <asm/hardware/gic.h> +#include <asm/smp_scu.h> +#include <asm/unified.h> +#include <asm/fiq.h> +#include <mach/smp.h> +#include <mach/cns3xxx.h> + +static struct fiq_handler fh = { + .name = "cns3xxx-fiq" +}; + +static unsigned int fiq_buffer[8]; + +#define FIQ_ENABLED 0x80000000 +#define FIQ_GENERATE 0x00010000 +#define CNS3XXX_MAP_AREA 0x01000000 +#define CNS3XXX_UNMAP_AREA 0x02000000 +#define CNS3XXX_FLUSH_RANGE 0x03000000 + +extern void cns3xxx_secondary_startup(void); +extern unsigned char cns3xxx_fiq_start, cns3xxx_fiq_end; +extern unsigned int fiq_number[2]; +extern struct cpu_cache_fns cpu_cache; +struct cpu_cache_fns cpu_cache_save; + +#define SCU_CPU_STATUS 0x08 +static void __iomem *scu_base; + +/* + * control for which core is the next to come out of the secondary + * boot "holding pen" + */ +volatile int __cpuinitdata pen_release = -1; + +static void __init cns3xxx_set_fiq_regs(void) +{ + struct pt_regs FIQ_regs; + unsigned int cpu = smp_processor_id(); + + if (cpu) { + FIQ_regs.ARM_ip = (unsigned int)&fiq_buffer[4]; + FIQ_regs.ARM_sp = (unsigned int)MISC_FIQ_CPU(0); + } else { + FIQ_regs.ARM_ip = (unsigned int)&fiq_buffer[0]; + FIQ_regs.ARM_sp = (unsigned int)MISC_FIQ_CPU(1); + } + set_fiq_regs(&FIQ_regs); +} + +static void __init cns3xxx_init_fiq(void) +{ + void *fiqhandler_start; + unsigned int fiqhandler_length; + int ret; + + fiqhandler_start = &cns3xxx_fiq_start; + fiqhandler_length = &cns3xxx_fiq_end - &cns3xxx_fiq_start; + + ret = claim_fiq(&fh); + + if (ret) { + return; + } + + set_fiq_handler(fiqhandler_start, fiqhandler_length); + fiq_buffer[0] = (unsigned int)&fiq_number[0]; + fiq_buffer[3] = 0; + fiq_buffer[4] = (unsigned int)&fiq_number[1]; + fiq_buffer[7] = 0; +} + + +/* + * Write pen_release in a way that is guaranteed to be visible to all + * observers, irrespective of whether they're taking part in coherency + * or not. This is necessary for the hotplug code to work reliably. + */ +static void __cpuinit write_pen_release(int val) +{ + pen_release = val; + smp_wmb(); + __cpuc_flush_dcache_area((void *)&pen_release, sizeof(pen_release)); + outer_clean_range(__pa(&pen_release), __pa(&pen_release + 1)); +} + +static DEFINE_SPINLOCK(boot_lock); + +void __cpuinit platform_secondary_init(unsigned int cpu) +{ + /* + * if any interrupts are already enabled for the primary + * core (e.g. timer irq), then they will not have been enabled + * for us: do so + */ + gic_secondary_init(0); + + /* + * Setup Secondary Core FIQ regs + */ + cns3xxx_set_fiq_regs(); + + /* + * let the primary processor know we're out of the + * pen, then head off into the C entry point + */ + write_pen_release(-1); + + /* + * Fixup DMA Operations + * + */ + cpu_cache.dma_map_area = (void *)smp_dma_map_area; + cpu_cache.dma_unmap_area = (void *)smp_dma_unmap_area; + cpu_cache.dma_flush_range = (void *)smp_dma_flush_range; + + /* + * Synchronise with the boot thread. + */ + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long timeout; + + /* + * Set synchronisation state between this boot processor + * and the secondary one + */ + spin_lock(&boot_lock); + + /* + * The secondary processor is waiting to be released from + * the holding pen - release it, then wait for it to flag + * that it has been released by resetting pen_release. + * + * Note that "pen_release" is the hardware CPU ID, whereas + * "cpu" is Linux's internal ID. + */ + write_pen_release(cpu); + + /* + * Send the secondary CPU a soft interrupt, thereby causing + * the boot monitor to read the system wide flags register, + * and branch to the address found there. + */ + gic_raise_softirq(cpumask_of(cpu), 1); + + timeout = jiffies + (1 * HZ); + while (time_before(jiffies, timeout)) { + smp_rmb(); + if (pen_release == -1) + break; + + udelay(10); + } + + /* + * now the secondary core is starting up let it run its + * calibrations, then wait for it to finish + */ + spin_unlock(&boot_lock); + + return pen_release != -1 ? -ENOSYS : 0; +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +void __init smp_init_cpus(void) +{ + unsigned int i, ncores; + unsigned int status; + + scu_base = (void __iomem *) CNS3XXX_TC11MP_SCU_BASE_VIRT; + + /* for CNS3xxx SCU_CPU_STATUS must be examined instead of SCU_CONFIGURATION + * used in scu_get_core_count + */ + status = __raw_readl(scu_base + SCU_CPU_STATUS); + for (i = 0; i < NR_CPUS+1; i++) { + if (((status >> (i*2)) & 0x3) == 0) + set_cpu_possible(i, true); + else + break; + } + ncores = i; + + set_smp_cross_call(gic_raise_softirq); +} + +void __init platform_smp_prepare_cpus(unsigned int max_cpus) +{ + int i; + + /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. + */ + for (i = 0; i < max_cpus; i++) { + set_cpu_present(i, true); + } + + /* + * enable SCU + */ + scu_enable(scu_base); + + /* + * Write the address of secondary startup into the + * system-wide flags register. The boot monitor waits + * until it receives a soft interrupt, and then the + * secondary CPU branches to this address. + */ + __raw_writel(virt_to_phys(cns3xxx_secondary_startup), + (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + 0x0600)); + + /* + * Setup FIQ's for main cpu + */ + cns3xxx_init_fiq(); + cns3xxx_set_fiq_regs(); + memcpy((void *)&cpu_cache_save, (void *)&cpu_cache, sizeof(struct cpu_cache_fns)); +} + + +static inline unsigned long cns3xxx_cpu_id(void) +{ + unsigned long cpu; + + asm volatile( + " mrc p15, 0, %0, c0, c0, 5 @ cns3xxx_cpu_id\n" + : "=r" (cpu) : : "memory", "cc"); + return (cpu & 0xf); +} + +void smp_dma_map_area(const void *addr, size_t size, int dir) +{ + unsigned int cpu; + unsigned long flags; + raw_local_irq_save(flags); + cpu = cns3xxx_cpu_id(); + if (cpu) { + fiq_buffer[1] = (unsigned int)addr; + fiq_buffer[2] = size; + fiq_buffer[3] = dir | CNS3XXX_MAP_AREA | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(1)); + + cpu_cache_save.dma_map_area(addr, size, dir); + while ((fiq_buffer[3]) & FIQ_ENABLED) { barrier(); } + } else { + + fiq_buffer[5] = (unsigned int)addr; + fiq_buffer[6] = size; + fiq_buffer[7] = dir | CNS3XXX_MAP_AREA | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(0)); + + cpu_cache_save.dma_map_area(addr, size, dir); + while ((fiq_buffer[7]) & FIQ_ENABLED) { barrier(); } + } + raw_local_irq_restore(flags); +} + +void smp_dma_unmap_area(const void *addr, size_t size, int dir) +{ + unsigned int cpu; + unsigned long flags; + + raw_local_irq_save(flags); + cpu = cns3xxx_cpu_id(); + if (cpu) { + + fiq_buffer[1] = (unsigned int)addr; + fiq_buffer[2] = size; + fiq_buffer[3] = dir | CNS3XXX_UNMAP_AREA | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(1)); + + cpu_cache_save.dma_unmap_area(addr, size, dir); + while ((fiq_buffer[3]) & FIQ_ENABLED) { barrier(); } + } else { + + fiq_buffer[5] = (unsigned int)addr; + fiq_buffer[6] = size; + fiq_buffer[7] = dir | CNS3XXX_UNMAP_AREA | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(0)); + + cpu_cache_save.dma_unmap_area(addr, size, dir); + while ((fiq_buffer[7]) & FIQ_ENABLED) { barrier(); } + } + raw_local_irq_restore(flags); +} + +void smp_dma_flush_range(const void *start, const void *end) +{ + unsigned int cpu; + unsigned long flags; + raw_local_irq_save(flags); + cpu = cns3xxx_cpu_id(); + if (cpu) { + + fiq_buffer[1] = (unsigned int)start; + fiq_buffer[2] = (unsigned int)end; + fiq_buffer[3] = CNS3XXX_FLUSH_RANGE | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(1)); + + cpu_cache_save.dma_flush_range(start, end); + while ((fiq_buffer[3]) & FIQ_ENABLED) { barrier(); } + } else { + + fiq_buffer[5] = (unsigned int)start; + fiq_buffer[6] = (unsigned int)end; + fiq_buffer[7] = CNS3XXX_FLUSH_RANGE | FIQ_ENABLED; + smp_mb(); + __raw_writel(FIQ_GENERATE, MISC_FIQ_CPU(0)); + + cpu_cache_save.dma_flush_range(start, end); + while ((fiq_buffer[7]) & FIQ_ENABLED) { barrier(); } + } + raw_local_irq_restore(flags); +} |