diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-netx/Makefile | 11 | ||||
| -rw-r--r-- | arch/arm/mach-netx/Makefile.boot | 2 | ||||
| -rw-r--r-- | arch/arm/mach-netx/generic.c | 193 | ||||
| -rw-r--r-- | arch/arm/mach-netx/generic.h | 24 | ||||
| -rw-r--r-- | arch/arm/mach-netx/time.c | 88 | ||||
| -rw-r--r-- | arch/arm/mm/Kconfig | 4 |
8 files changed, 329 insertions, 2 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f47cf9a..dfb97fe 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -275,6 +275,12 @@ config ARCH_PNX4008 help This enables support for Philips PNX4008 mobile platform. +config ARCH_NETX + bool "Hilscher NetX based" + select ARM_VIC + help + This enables support for systems based on the Hilscher NetX Soc + endchoice source "arch/arm/mach-clps711x/Kconfig" @@ -319,6 +325,8 @@ source "arch/arm/mach-realview/Kconfig" source "arch/arm/mach-at91rm9200/Kconfig" +source "arch/arm/mach-netx/Kconfig" + # Definitions to make life easier config ARCH_ACORN bool diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 6c97aa70..282b14e 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -117,6 +117,7 @@ endif machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200 machine-$(CONFIG_ARCH_EP93XX) := ep93xx machine-$(CONFIG_ARCH_PNX4008) := pnx4008 + machine-$(CONFIG_ARCH_NETX) := netx ifeq ($(CONFIG_ARCH_EBSA110),y) # This is what happens if you forget the IOCS16 line. diff --git a/arch/arm/mach-netx/Makefile b/arch/arm/mach-netx/Makefile new file mode 100644 index 0000000..257d02e --- /dev/null +++ b/arch/arm/mach-netx/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the linux kernel. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). + +# Object file lists. + +obj-y += time.o generic.o + diff --git a/arch/arm/mach-netx/Makefile.boot b/arch/arm/mach-netx/Makefile.boot new file mode 100644 index 0000000..b81cf6a --- /dev/null +++ b/arch/arm/mach-netx/Makefile.boot @@ -0,0 +1,2 @@ + zreladdr-y := 0x80008000 + diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c new file mode 100644 index 0000000..af0b135 --- /dev/null +++ b/arch/arm/mach-netx/generic.c @@ -0,0 +1,193 @@ +/* + * arch/arm/mach-netx/generic.c + * + * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <asm/hardware.h> +#include <asm/mach/map.h> +#include <asm/hardware/vic.h> +#include <asm/io.h> +#include <asm/arch/netx-regs.h> +#include <asm/mach/irq.h> + +static struct map_desc netx_io_desc[] __initdata = { + { + .virtual = NETX_IO_VIRT, + .pfn = __phys_to_pfn(NETX_IO_PHYS), + .length = NETX_IO_SIZE, + .type = MT_DEVICE + } +}; + +void __init netx_map_io(void) +{ + iotable_init(netx_io_desc, ARRAY_SIZE(netx_io_desc)); +} + +static struct resource netx_rtc_resources[] = { + [0] = { + .start = 0x00101200, + .end = 0x00101220, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device netx_rtc_device = { + .name = "netx-rtc", + .id = 0, + .num_resources = ARRAY_SIZE(netx_rtc_resources), + .resource = netx_rtc_resources, +}; + +static struct platform_device *devices[] __initdata = { + &netx_rtc_device, +}; + +#if 0 +#define DEBUG_IRQ(fmt...) printk(fmt) +#else +#define DEBUG_IRQ(fmt...) while (0) {} +#endif + +static void +netx_hif_demux_handler(unsigned int irq_unused, struct irqdesc *desc, + struct pt_regs *regs) +{ + unsigned int irq = NETX_IRQ_HIF_CHAINED(0); + unsigned int stat; + + stat = ((readl(NETX_DPMAS_INT_EN) & + readl(NETX_DPMAS_INT_STAT)) >> 24) & 0x1f; + + desc = irq_desc + NETX_IRQ_HIF_CHAINED(0); + + while (stat) { + if (stat & 1) { + DEBUG_IRQ("handling irq %d\n", irq); + desc_handle_irq(irq, desc, regs); + } + irq++; + desc++; + stat >>= 1; + } +} + +static int +netx_hif_irq_type(unsigned int _irq, unsigned int type) +{ + unsigned int val, irq; + + val = readl(NETX_DPMAS_IF_CONF1); + + irq = _irq - NETX_IRQ_HIF_CHAINED(0); + + if (type & __IRQT_RISEDGE) { + DEBUG_IRQ("rising edges\n"); + val |= (1 << 26) << irq; + } + if (type & __IRQT_FALEDGE) { + DEBUG_IRQ("falling edges\n"); + val &= ~((1 << 26) << irq); + } + if (type & __IRQT_LOWLVL) { + DEBUG_IRQ("low level\n"); + val &= ~((1 << 26) << irq); + } + if (type & __IRQT_HIGHLVL) { + DEBUG_IRQ("high level\n"); + val |= (1 << 26) << irq; + } + + writel(val, NETX_DPMAS_IF_CONF1); + + return 0; +} + +static void +netx_hif_ack_irq(unsigned int _irq) +{ + unsigned int val, irq; + + irq = _irq - NETX_IRQ_HIF_CHAINED(0); + writel((1 << 24) << irq, NETX_DPMAS_INT_STAT); + + val = readl(NETX_DPMAS_INT_EN); + val &= ~((1 << 24) << irq); + writel(val, NETX_DPMAS_INT_EN); + + DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); +} + +static void +netx_hif_mask_irq(unsigned int _irq) +{ + unsigned int val, irq; + + irq = _irq - NETX_IRQ_HIF_CHAINED(0); + val = readl(NETX_DPMAS_INT_EN); + val &= ~((1 << 24) << irq); + writel(val, NETX_DPMAS_INT_EN); + DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); +} + +static void +netx_hif_unmask_irq(unsigned int _irq) +{ + unsigned int val, irq; + + irq = _irq - NETX_IRQ_HIF_CHAINED(0); + val = readl(NETX_DPMAS_INT_EN); + val |= (1 << 24) << irq; + writel(val, NETX_DPMAS_INT_EN); + DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, _irq); +} + +static struct irqchip netx_hif_chip = { + .ack = netx_hif_ack_irq, + .mask = netx_hif_mask_irq, + .unmask = netx_hif_unmask_irq, + .set_type = netx_hif_irq_type, +}; + +void __init netx_init_irq(void) +{ + int irq; + + vic_init(__io(io_p2v(NETX_PA_VIC)), 0, ~0); + + for (irq = NETX_IRQ_HIF_CHAINED(0); irq <= NETX_IRQ_HIF_LAST; irq++) { + set_irq_chip(irq, &netx_hif_chip); + set_irq_handler(irq, do_level_IRQ); + set_irq_flags(irq, IRQF_VALID); + } + + writel(NETX_DPMAS_INT_EN_GLB_EN, NETX_DPMAS_INT_EN); + set_irq_chained_handler(NETX_IRQ_HIF, netx_hif_demux_handler); +} + +static int __init netx_init(void) +{ + return platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +subsys_initcall(netx_init); + diff --git a/arch/arm/mach-netx/generic.h b/arch/arm/mach-netx/generic.h new file mode 100644 index 0000000..ede2d35 --- /dev/null +++ b/arch/arm/mach-netx/generic.h @@ -0,0 +1,24 @@ +/* + * arch/arm/mach-netx/generic.h + * + * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +extern void __init netx_map_io(void); +extern void __init netx_init_irq(void); + +struct sys_timer; +extern struct sys_timer netx_timer; diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c new file mode 100644 index 0000000..edfbdf4 --- /dev/null +++ b/arch/arm/mach-netx/time.c @@ -0,0 +1,88 @@ +/* + * arch/arm/mach-netx/time.c + * + * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/interrupt.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/mach/time.h> +#include <asm/arch/netx-regs.h> + +/* + * Returns number of us since last clock interrupt. Note that interrupts + * will have been disabled by do_gettimeoffset() + */ +static unsigned long netx_gettimeoffset(void) +{ + return readl(NETX_GPIO_COUNTER_CURRENT(0)) / 100; +} + +/* + * IRQ handler for the timer + */ +static irqreturn_t +netx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + write_seqlock(&xtime_lock); + + timer_tick(regs); + write_sequnlock(&xtime_lock); + + /* acknowledge interrupt */ + writel(COUNTER_BIT(0), NETX_GPIO_IRQ); + + return IRQ_HANDLED; +} + + +static struct irqaction netx_timer_irq = { + .name = "NetX Timer Tick", + .flags = SA_INTERRUPT | SA_TIMER, + .handler = netx_timer_interrupt, +}; + +/* + * Set up timer interrupt + */ +static void __init netx_timer_init(void) +{ + /* disable timer initially */ + writel(0, NETX_GPIO_COUNTER_CTRL(0)); + + /* Reset the timer value to zero */ + writel(0, NETX_GPIO_COUNTER_CURRENT(0)); + + writel(LATCH, NETX_GPIO_COUNTER_MAX(0)); + + /* acknowledge interrupt */ + writel(COUNTER_BIT(0), NETX_GPIO_IRQ); + + /* Enable the interrupt in the specific timer register and start timer */ + writel(COUNTER_BIT(0), NETX_GPIO_IRQ_ENABLE); + writel(NETX_GPIO_COUNTER_CTRL_IRQ_EN | NETX_GPIO_COUNTER_CTRL_RUN, + NETX_GPIO_COUNTER_CTRL(0)); + + setup_irq(NETX_IRQ_TIMER0, &netx_timer_irq); +} + +struct sys_timer netx_timer = { + .init = netx_timer_init, + .offset = netx_gettimeoffset, +}; diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 1ff2f07..4221d05 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -121,8 +121,8 @@ config CPU_ARM925T # ARM926T config CPU_ARM926T bool "Support ARM926T processor" - depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 - default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 + depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX + default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX select CPU_32v5 select CPU_ABRT_EV5TJ select CPU_CACHE_VIVT |
