diff options
Diffstat (limited to 'arch/arm/mach-epxa10db')
| -rw-r--r-- | arch/arm/mach-epxa10db/Kconfig | 23 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/Makefile | 11 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/Makefile.boot | 2 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/arch.c | 72 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/dma.c | 28 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/irq.c | 82 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/mm.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-epxa10db/time.c | 78 |
8 files changed, 341 insertions, 0 deletions
diff --git a/arch/arm/mach-epxa10db/Kconfig b/arch/arm/mach-epxa10db/Kconfig new file mode 100644 index 00000000000..55d896dd495 --- /dev/null +++ b/arch/arm/mach-epxa10db/Kconfig @@ -0,0 +1,23 @@ +if ARCH_CAMELOT + +menu "Epxa10db" + +comment "PLD hotswap support" + +config PLD + bool + default y + +config PLD_HOTSWAP + bool "Support for PLD device hotplugging (experimental)" + depends on EXPERIMENTAL + help + This enables support for the dynamic loading and configuration of + compatible drivers when the contents of the PLD are changed. This + is still experimental and requires configuration tools which are + not yet generally available. Say N here. You must enable the kernel + module loader for this feature to work. + +endmenu + +endif diff --git a/arch/arm/mach-epxa10db/Makefile b/arch/arm/mach-epxa10db/Makefile new file mode 100644 index 00000000000..24fbd7d3a3c --- /dev/null +++ b/arch/arm/mach-epxa10db/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the linux kernel. +# + +# Object file lists. + +obj-y := arch.o irq.o mm.o time.o +obj-m := +obj-n := +obj- := + diff --git a/arch/arm/mach-epxa10db/Makefile.boot b/arch/arm/mach-epxa10db/Makefile.boot new file mode 100644 index 00000000000..28bec7d3fc8 --- /dev/null +++ b/arch/arm/mach-epxa10db/Makefile.boot @@ -0,0 +1,2 @@ + zreladdr-y := 0x00008000 + diff --git a/arch/arm/mach-epxa10db/arch.c b/arch/arm/mach-epxa10db/arch.c new file mode 100644 index 00000000000..1b40340e8a2 --- /dev/null +++ b/arch/arm/mach-epxa10db/arch.c @@ -0,0 +1,72 @@ +/* + * linux/arch/arm/mach-epxa10db/arch.c + * + * Copyright (C) 2000 Deep Blue Solutions Ltd + * Copyright (C) 2001 Altera Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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/types.h> +#include <linux/init.h> +#include <linux/serial_8250.h> + +#include <asm/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> + +static struct plat_serial8250_port serial_platform_data[] = { + { + .iobase = 0x3f8, + .irq = IRQ_UARTINT0, +#error FIXME + .uartclk = 0, + .regshift = 0, + .iotype = UPIO_PORT, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + }, + { + .iobase = 0x2f8, + .irq = IRQ_UARTINT1, +#error FIXME + .uartclk = 0, + .regshift = 0, + .iotype = UPIO_PORT, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + }, + { }, +}; + +static struct platform_device serial_device = { + .name = "serial8250", + .id = 0, + .dev = { + .platform_data = serial_platform_data, + }, +}; + +extern void epxa10db_map_io(void); +extern void epxa10db_init_irq(void); +extern struct sys_timer epxa10db_timer; + +MACHINE_START(CAMELOT, "Altera Epxa10db") + MAINTAINER("Altera Corporation") + BOOT_MEM(0x00000000, 0x7fffc000, 0xffffc000) + MAPIO(epxa10db_map_io) + INITIRQ(epxa10db_init_irq) + .timer = &epxa10db_timer, +MACHINE_END + diff --git a/arch/arm/mach-epxa10db/dma.c b/arch/arm/mach-epxa10db/dma.c new file mode 100644 index 00000000000..0151e9f1c06 --- /dev/null +++ b/arch/arm/mach-epxa10db/dma.c @@ -0,0 +1,28 @@ +/* + * linux/arch/arm/mach-epxa10db/dma.c + * + * Copyright (C) 1999 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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 <asm/dma.h> +#include <asm/mach/dma.h> + +void __init arch_dma_init(dma_t *dma) +{ +} diff --git a/arch/arm/mach-epxa10db/irq.c b/arch/arm/mach-epxa10db/irq.c new file mode 100644 index 00000000000..9bf927e1330 --- /dev/null +++ b/arch/arm/mach-epxa10db/irq.c @@ -0,0 +1,82 @@ +/* + * linux/arch/arm/mach-epxa10db/irq.c + * + * Copyright (C) 2001 Altera Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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/ioport.h> +#include <linux/stddef.h> +#include <linux/timer.h> +#include <linux/list.h> +#include <asm/io.h> +#include <asm/hardware.h> +#include <asm/irq.h> +#include <asm/mach/irq.h> +#include <asm/arch/platform.h> +#include <asm/arch/int_ctrl00.h> + + +static void epxa_mask_irq(unsigned int irq) +{ + writel(1 << irq, INT_MC(IO_ADDRESS(EXC_INT_CTRL00_BASE))); +} + +static void epxa_unmask_irq(unsigned int irq) +{ + writel(1 << irq, INT_MS(IO_ADDRESS(EXC_INT_CTRL00_BASE))); +} + + +static struct irqchip epxa_irq_chip = { + .ack = epxa_mask_irq, + .mask = epxa_mask_irq, + .unmask = epxa_unmask_irq, +}; + +static struct resource irq_resource = { + .name = "irq_handler", + .start = IO_ADDRESS(EXC_INT_CTRL00_BASE), + .end = IO_ADDRESS(INT_PRIORITY_FC(EXC_INT_CTRL00_BASE))+4, +}; + +void __init epxa10db_init_irq(void) +{ + unsigned int i; + + request_resource(&iomem_resource, &irq_resource); + + /* + * This bit sets up the interrupt controller using + * the 6 PLD interrupts mode (the default) each + * irqs is assigned a priority which is the same + * as its interrupt number. This scheme is used because + * its easy, but you may want to change it depending + * on the contents of your PLD + */ + + writel(3,INT_MODE(IO_ADDRESS(EXC_INT_CTRL00_BASE))); + for (i = 0; i < NR_IRQS; i++){ + writel(i+1, INT_PRIORITY_P0(IO_ADDRESS(EXC_INT_CTRL00_BASE)) + (4*i)); + set_irq_chip(i,&epxa_irq_chip); + set_irq_handler(i,do_level_IRQ); + set_irq_flags(i, IRQF_VALID | IRQF_PROBE); + } + + /* Disable all interrupts */ + writel(-1,INT_MC(IO_ADDRESS(EXC_INT_CTRL00_BASE))); + +} diff --git a/arch/arm/mach-epxa10db/mm.c b/arch/arm/mach-epxa10db/mm.c new file mode 100644 index 00000000000..2aa57fa46da --- /dev/null +++ b/arch/arm/mach-epxa10db/mm.c @@ -0,0 +1,45 @@ +/* + * linux/arch/arm/mach-epxa10db/mm.c + * + * MM routines for Altera'a Epxa10db board + * + * Copyright (C) 2001 Altera Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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/kernel.h> +#include <linux/init.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/sizes.h> + +#include <asm/mach/map.h> + +/* Page table mapping for I/O region */ + +static struct map_desc epxa10db_io_desc[] __initdata = { + { IO_ADDRESS(EXC_REGISTERS_BASE), EXC_REGISTERS_BASE, SZ_16K, MT_DEVICE }, + { IO_ADDRESS(EXC_PLD_BLOCK0_BASE), EXC_PLD_BLOCK0_BASE, SZ_16K, MT_DEVICE }, + { IO_ADDRESS(EXC_PLD_BLOCK1_BASE), EXC_PLD_BLOCK1_BASE, SZ_16K, MT_DEVICE }, + { IO_ADDRESS(EXC_PLD_BLOCK2_BASE), EXC_PLD_BLOCK2_BASE, SZ_16K, MT_DEVICE }, + { IO_ADDRESS(EXC_PLD_BLOCK3_BASE), EXC_PLD_BLOCK3_BASE, SZ_16K, MT_DEVICE }, + { FLASH_VADDR(EXC_EBI_BLOCK0_BASE), EXC_EBI_BLOCK0_BASE, SZ_16M, MT_DEVICE } +}; + +void __init epxa10db_map_io(void) +{ + iotable_init(epxa10db_io_desc, ARRAY_SIZE(epxa10db_io_desc)); +} diff --git a/arch/arm/mach-epxa10db/time.c b/arch/arm/mach-epxa10db/time.c new file mode 100644 index 00000000000..1b991f3cc3c --- /dev/null +++ b/arch/arm/mach-epxa10db/time.c @@ -0,0 +1,78 @@ +/* + * linux/arch/arm/mach-epxa10db/time.c + * + * Copyright (C) 2000 Deep Blue Solutions + * Copyright (C) 2001 Altera Corporation + * + * 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/init.h> +#include <linux/interrupt.h> +#include <linux/sched.h> + +#include <asm/hardware.h> +#include <asm/system.h> +#include <asm/leds.h> + +#include <asm/mach/time.h> + +#define TIMER00_TYPE (volatile unsigned int*) +#include <asm/arch/timer00.h> + +static int epxa10db_set_rtc(void) +{ + return 1; +} + +static int epxa10db_rtc_init(void) +{ + set_rtc = epxa10db_set_rtc; + + return 0; +} + +__initcall(epxa10db_rtc_init); + + +/* + * IRQ handler for the timer + */ +static irqreturn_t +epxa10db_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + write_seqlock(&xtime_lock); + + // ...clear the interrupt + *TIMER0_CR(IO_ADDRESS(EXC_TIMER00_BASE))|=TIMER0_CR_CI_MSK; + + timer_tick(regs); + write_sequnlock(&xtime_lock); + + return IRQ_HANDLED; +} + +static struct irqaction epxa10db_timer_irq = { + .name = "Excalibur Timer Tick", + .flags = SA_INTERRUPT, + .handler = epxa10db_timer_interrupt +}; + +/* + * Set up timer interrupt, and return the current time in seconds. + */ +static void __init epxa10db_timer_init(void) +{ + /* Start the timer */ + *TIMER0_LIMIT(IO_ADDRESS(EXC_TIMER00_BASE))=(unsigned int)(EXC_AHB2_CLK_FREQUENCY/200); + *TIMER0_PRESCALE(IO_ADDRESS(EXC_TIMER00_BASE))=1; + *TIMER0_CR(IO_ADDRESS(EXC_TIMER00_BASE))=TIMER0_CR_IE_MSK | TIMER0_CR_S_MSK; + + setup_irq(IRQ_TIMER0, &epxa10db_timer_irq); +} + +struct sys_timer epxa10db_timer = { + .init = epxa10db_timer_init, +}; |