diff options
Diffstat (limited to 'arch/arm/mach-ixp23xx')
| -rw-r--r-- | arch/arm/mach-ixp23xx/Kconfig | 25 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/Makefile | 11 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/Makefile.boot | 2 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/core.c | 443 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/espresso.c | 97 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/ixdp2351.c | 344 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/pci.c | 290 | ||||
| -rw-r--r-- | arch/arm/mach-ixp23xx/roadrunner.c | 183 |
8 files changed, 0 insertions, 1395 deletions
diff --git a/arch/arm/mach-ixp23xx/Kconfig b/arch/arm/mach-ixp23xx/Kconfig deleted file mode 100644 index 982670ec386..00000000000 --- a/arch/arm/mach-ixp23xx/Kconfig +++ /dev/null @@ -1,25 +0,0 @@ -if ARCH_IXP23XX - -config ARCH_SUPPORTS_BIG_ENDIAN - bool - default y - -menu "Intel IXP23xx Implementation Options" - -comment "IXP23xx Platforms" - -config MACH_ESPRESSO - bool "Support IP Fabrics Double Espresso platform" - help - -config MACH_IXDP2351 - bool "Support Intel IXDP2351 platform" - help - -config MACH_ROADRUNNER - bool "Support ADI RoadRunner platform" - help - -endmenu - -endif diff --git a/arch/arm/mach-ixp23xx/Makefile b/arch/arm/mach-ixp23xx/Makefile deleted file mode 100644 index 288b371b6d0..00000000000 --- a/arch/arm/mach-ixp23xx/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for the linux kernel. -# -obj-y := core.o pci.o -obj-m := -obj-n := -obj- := - -obj-$(CONFIG_MACH_ESPRESSO) += espresso.o -obj-$(CONFIG_MACH_IXDP2351) += ixdp2351.o -obj-$(CONFIG_MACH_ROADRUNNER) += roadrunner.o diff --git a/arch/arm/mach-ixp23xx/Makefile.boot b/arch/arm/mach-ixp23xx/Makefile.boot deleted file mode 100644 index d5561ad15ba..00000000000 --- a/arch/arm/mach-ixp23xx/Makefile.boot +++ /dev/null @@ -1,2 +0,0 @@ - zreladdr-y := 0x00008000 -params_phys-y := 0x00000100 diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c deleted file mode 100644 index b644bbab7d0..00000000000 --- a/arch/arm/mach-ixp23xx/core.c +++ /dev/null @@ -1,443 +0,0 @@ -/* - * arch/arm/mach-ixp23xx/core.c - * - * Core routines for IXP23xx chips - * - * Author: Deepak Saxena <dsaxena@plexity.net> - * - * Copyright 2005 (c) MontaVista Software, Inc. - * - * Based on 2.4 code Copyright 2004 (c) Intel Corporation - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/bitops.h> -#include <linux/serial.h> -#include <linux/serial_8250.h> -#include <linux/serial_core.h> -#include <linux/device.h> -#include <linux/mm.h> -#include <linux/time.h> -#include <linux/timex.h> - -#include <asm/types.h> -#include <asm/setup.h> -#include <asm/memory.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/tlbflush.h> -#include <asm/pgtable.h> - -#include <asm/mach/map.h> -#include <asm/mach/time.h> -#include <asm/mach/irq.h> -#include <asm/mach/arch.h> - - -/************************************************************************* - * Chip specific mappings shared by all IXP23xx systems - *************************************************************************/ -static struct map_desc ixp23xx_io_desc[] __initdata = { - { /* XSI-CPP CSRs */ - .virtual = IXP23XX_XSI2CPP_CSR_VIRT, - .pfn = __phys_to_pfn(IXP23XX_XSI2CPP_CSR_PHYS), - .length = IXP23XX_XSI2CPP_CSR_SIZE, - .type = MT_DEVICE, - }, { /* Expansion Bus Config */ - .virtual = IXP23XX_EXP_CFG_VIRT, - .pfn = __phys_to_pfn(IXP23XX_EXP_CFG_PHYS), - .length = IXP23XX_EXP_CFG_SIZE, - .type = MT_DEVICE, - }, { /* UART, Interrupt ctrl, GPIO, timers, NPEs, MACS,.... */ - .virtual = IXP23XX_PERIPHERAL_VIRT, - .pfn = __phys_to_pfn(IXP23XX_PERIPHERAL_PHYS), - .length = IXP23XX_PERIPHERAL_SIZE, - .type = MT_DEVICE, - }, { /* CAP CSRs */ - .virtual = IXP23XX_CAP_CSR_VIRT, - .pfn = __phys_to_pfn(IXP23XX_CAP_CSR_PHYS), - .length = IXP23XX_CAP_CSR_SIZE, - .type = MT_DEVICE, - }, { /* MSF CSRs */ - .virtual = IXP23XX_MSF_CSR_VIRT, - .pfn = __phys_to_pfn(IXP23XX_MSF_CSR_PHYS), - .length = IXP23XX_MSF_CSR_SIZE, - .type = MT_DEVICE, - }, { /* PCI I/O Space */ - .virtual = IXP23XX_PCI_IO_VIRT, - .pfn = __phys_to_pfn(IXP23XX_PCI_IO_PHYS), - .length = IXP23XX_PCI_IO_SIZE, - .type = MT_DEVICE, - }, { /* PCI Config Space */ - .virtual = IXP23XX_PCI_CFG_VIRT, - .pfn = __phys_to_pfn(IXP23XX_PCI_CFG_PHYS), - .length = IXP23XX_PCI_CFG_SIZE, - .type = MT_DEVICE, - }, { /* PCI local CFG CSRs */ - .virtual = IXP23XX_PCI_CREG_VIRT, - .pfn = __phys_to_pfn(IXP23XX_PCI_CREG_PHYS), - .length = IXP23XX_PCI_CREG_SIZE, - .type = MT_DEVICE, - }, { /* PCI MEM Space */ - .virtual = IXP23XX_PCI_MEM_VIRT, - .pfn = __phys_to_pfn(IXP23XX_PCI_MEM_PHYS), - .length = IXP23XX_PCI_MEM_SIZE, - .type = MT_DEVICE, - } -}; - -void __init ixp23xx_map_io(void) -{ - iotable_init(ixp23xx_io_desc, ARRAY_SIZE(ixp23xx_io_desc)); -} - - -/*************************************************************************** - * IXP23xx Interrupt Handling - ***************************************************************************/ -enum ixp23xx_irq_type { - IXP23XX_IRQ_LEVEL, IXP23XX_IRQ_EDGE -}; - -static void ixp23xx_config_irq(unsigned int, enum ixp23xx_irq_type); - -static int ixp23xx_irq_set_type(unsigned int irq, unsigned int type) -{ - int line = irq - IRQ_IXP23XX_GPIO6 + 6; - u32 int_style; - enum ixp23xx_irq_type irq_type; - volatile u32 *int_reg; - - /* - * Only GPIOs 6-15 are wired to interrupts on IXP23xx - */ - if (line < 6 || line > 15) - return -EINVAL; - - switch (type) { - case IRQT_BOTHEDGE: - int_style = IXP23XX_GPIO_STYLE_TRANSITIONAL; - irq_type = IXP23XX_IRQ_EDGE; - break; - case IRQT_RISING: - int_style = IXP23XX_GPIO_STYLE_RISING_EDGE; - irq_type = IXP23XX_IRQ_EDGE; - break; - case IRQT_FALLING: - int_style = IXP23XX_GPIO_STYLE_FALLING_EDGE; - irq_type = IXP23XX_IRQ_EDGE; - break; - case IRQT_HIGH: - int_style = IXP23XX_GPIO_STYLE_ACTIVE_HIGH; - irq_type = IXP23XX_IRQ_LEVEL; - break; - case IRQT_LOW: - int_style = IXP23XX_GPIO_STYLE_ACTIVE_LOW; - irq_type = IXP23XX_IRQ_LEVEL; - break; - default: - return -EINVAL; - } - - ixp23xx_config_irq(irq, irq_type); - - if (line >= 8) { /* pins 8-15 */ - line -= 8; - int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT2R; - } else { /* pins 0-7 */ - int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT1R; - } - - /* - * Clear pending interrupts - */ - *IXP23XX_GPIO_GPISR = (1 << line); - - /* Clear the style for the appropriate pin */ - *int_reg &= ~(IXP23XX_GPIO_STYLE_MASK << - (line * IXP23XX_GPIO_STYLE_SIZE)); - - /* Set the new style */ - *int_reg |= (int_style << (line * IXP23XX_GPIO_STYLE_SIZE)); - - return 0; -} - -static void ixp23xx_irq_mask(unsigned int irq) -{ - volatile unsigned long *intr_reg; - - if (irq >= 56) - irq += 8; - - intr_reg = IXP23XX_INTR_EN1 + (irq / 32); - *intr_reg &= ~(1 << (irq % 32)); -} - -static void ixp23xx_irq_ack(unsigned int irq) -{ - int line = irq - IRQ_IXP23XX_GPIO6 + 6; - - if ((line < 6) || (line > 15)) - return; - - *IXP23XX_GPIO_GPISR = (1 << line); -} - -/* - * Level triggered interrupts on GPIO lines can only be cleared when the - * interrupt condition disappears. - */ -static void ixp23xx_irq_level_unmask(unsigned int irq) -{ - volatile unsigned long *intr_reg; - - ixp23xx_irq_ack(irq); - - if (irq >= 56) - irq += 8; - - intr_reg = IXP23XX_INTR_EN1 + (irq / 32); - *intr_reg |= (1 << (irq % 32)); -} - -static void ixp23xx_irq_edge_unmask(unsigned int irq) -{ - volatile unsigned long *intr_reg; - - if (irq >= 56) - irq += 8; - - intr_reg = IXP23XX_INTR_EN1 + (irq / 32); - *intr_reg |= (1 << (irq % 32)); -} - -static struct irq_chip ixp23xx_irq_level_chip = { - .ack = ixp23xx_irq_mask, - .mask = ixp23xx_irq_mask, - .unmask = ixp23xx_irq_level_unmask, - .set_type = ixp23xx_irq_set_type -}; - -static struct irq_chip ixp23xx_irq_edge_chip = { - .ack = ixp23xx_irq_ack, - .mask = ixp23xx_irq_mask, - .unmask = ixp23xx_irq_edge_unmask, - .set_type = ixp23xx_irq_set_type -}; - -static void ixp23xx_pci_irq_mask(unsigned int irq) -{ - *IXP23XX_PCI_XSCALE_INT_ENABLE &= ~(1 << (IRQ_IXP23XX_INTA + 27 - irq)); -} - -static void ixp23xx_pci_irq_unmask(unsigned int irq) -{ - *IXP23XX_PCI_XSCALE_INT_ENABLE |= (1 << (IRQ_IXP23XX_INTA + 27 - irq)); -} - -/* - * TODO: Should this just be done at ASM level? - */ -static void pci_handler(unsigned int irq, struct irq_desc *desc) -{ - u32 pci_interrupt; - unsigned int irqno; - struct irq_desc *int_desc; - - pci_interrupt = *IXP23XX_PCI_XSCALE_INT_STATUS; - - desc->chip->ack(irq); - - /* See which PCI_INTA, or PCI_INTB interrupted */ - if (pci_interrupt & (1 << 26)) { - irqno = IRQ_IXP23XX_INTB; - } else if (pci_interrupt & (1 << 27)) { - irqno = IRQ_IXP23XX_INTA; - } else { - BUG(); - } - - int_desc = irq_desc + irqno; - desc_handle_irq(irqno, int_desc); - - desc->chip->unmask(irq); -} - -static struct irq_chip ixp23xx_pci_irq_chip = { - .ack = ixp23xx_pci_irq_mask, - .mask = ixp23xx_pci_irq_mask, - .unmask = ixp23xx_pci_irq_unmask -}; - -static void ixp23xx_config_irq(unsigned int irq, enum ixp23xx_irq_type type) -{ - switch (type) { - case IXP23XX_IRQ_LEVEL: - set_irq_chip(irq, &ixp23xx_irq_level_chip); - set_irq_handler(irq, handle_level_irq); - break; - case IXP23XX_IRQ_EDGE: - set_irq_chip(irq, &ixp23xx_irq_edge_chip); - set_irq_handler(irq, handle_edge_irq); - break; - } - set_irq_flags(irq, IRQF_VALID); -} - -void __init ixp23xx_init_irq(void) -{ - int irq; - - /* Route everything to IRQ */ - *IXP23XX_INTR_SEL1 = 0x0; - *IXP23XX_INTR_SEL2 = 0x0; - *IXP23XX_INTR_SEL3 = 0x0; - *IXP23XX_INTR_SEL4 = 0x0; - - /* Mask all sources */ - *IXP23XX_INTR_EN1 = 0x0; - *IXP23XX_INTR_EN2 = 0x0; - *IXP23XX_INTR_EN3 = 0x0; - *IXP23XX_INTR_EN4 = 0x0; - - /* - * Configure all IRQs for level-sensitive operation - */ - for (irq = 0; irq <= NUM_IXP23XX_RAW_IRQS; irq++) { - ixp23xx_config_irq(irq, IXP23XX_IRQ_LEVEL); - } - - for (irq = IRQ_IXP23XX_INTA; irq <= IRQ_IXP23XX_INTB; irq++) { - set_irq_chip(irq, &ixp23xx_pci_irq_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); - } - - set_irq_chained_handler(IRQ_IXP23XX_PCI_INT_RPH, pci_handler); -} - - -/************************************************************************* - * Timer-tick functions for IXP23xx - *************************************************************************/ -#define CLOCK_TICKS_PER_USEC (CLOCK_TICK_RATE / USEC_PER_SEC) - -static unsigned long next_jiffy_time; - -static unsigned long -ixp23xx_gettimeoffset(void) -{ - unsigned long elapsed; - - elapsed = *IXP23XX_TIMER_CONT - (next_jiffy_time - LATCH); - - return elapsed / CLOCK_TICKS_PER_USEC; -} - -static irqreturn_t -ixp23xx_timer_interrupt(int irq, void *dev_id) -{ - /* Clear Pending Interrupt by writing '1' to it */ - *IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND; - while ((signed long)(*IXP23XX_TIMER_CONT - next_jiffy_time) >= LATCH) { - timer_tick(); - next_jiffy_time += LATCH; - } - - return IRQ_HANDLED; -} - -static struct irqaction ixp23xx_timer_irq = { - .name = "IXP23xx Timer Tick", - .handler = ixp23xx_timer_interrupt, - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, -}; - -void __init ixp23xx_init_timer(void) -{ - /* Clear Pending Interrupt by writing '1' to it */ - *IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND; - - /* Setup the Timer counter value */ - *IXP23XX_TIMER1_RELOAD = - (LATCH & ~IXP23XX_TIMER_RELOAD_MASK) | IXP23XX_TIMER_ENABLE; - - *IXP23XX_TIMER_CONT = 0; - next_jiffy_time = LATCH; - - /* Connect the interrupt handler and enable the interrupt */ - setup_irq(IRQ_IXP23XX_TIMER1, &ixp23xx_timer_irq); -} - -struct sys_timer ixp23xx_timer = { - .init = ixp23xx_init_timer, - .offset = ixp23xx_gettimeoffset, -}; - - -/************************************************************************* - * IXP23xx Platform Initializaion - *************************************************************************/ -static struct resource ixp23xx_uart_resources[] = { - { - .start = IXP23XX_UART1_PHYS, - .end = IXP23XX_UART1_PHYS + 0x0fff, - .flags = IORESOURCE_MEM - }, { - .start = IXP23XX_UART2_PHYS, - .end = IXP23XX_UART2_PHYS + 0x0fff, - .flags = IORESOURCE_MEM - } -}; - -static struct plat_serial8250_port ixp23xx_uart_data[] = { - { - .mapbase = IXP23XX_UART1_PHYS, - .membase = (char *)(IXP23XX_UART1_VIRT + 3), - .irq = IRQ_IXP23XX_UART1, - .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = IXP23XX_UART_XTAL, - }, { - .mapbase = IXP23XX_UART2_PHYS, - .membase = (char *)(IXP23XX_UART2_VIRT + 3), - .irq = IRQ_IXP23XX_UART2, - .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, - .iotype = UPIO_MEM, - .regshift = 2, - .uartclk = IXP23XX_UART_XTAL, - }, - { }, -}; - -static struct platform_device ixp23xx_uart = { - .name = "serial8250", - .id = 0, - .dev.platform_data = ixp23xx_uart_data, - .num_resources = 2, - .resource = ixp23xx_uart_resources, -}; - -static struct platform_device *ixp23xx_devices[] __initdata = { - &ixp23xx_uart, -}; - -void __init ixp23xx_sys_init(void) -{ - *IXP23XX_EXP_UNIT_FUSE |= 0xf; - platform_add_devices(ixp23xx_devices, ARRAY_SIZE(ixp23xx_devices)); -} diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c deleted file mode 100644 index 7a85ced5671..00000000000 --- a/arch/arm/mach-ixp23xx/espresso.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * arch/arm/mach-ixp23xx/espresso.c - * - * Double Espresso-specific routines - * - * Author: Lennert Buytenhek <buytenh@wantstofly.org> - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/bitops.h> -#include <linux/ioport.h> -#include <linux/serial.h> -#include <linux/serial_8250.h> -#include <linux/serial_core.h> -#include <linux/device.h> -#include <linux/mm.h> -#include <linux/pci.h> -#include <linux/mtd/physmap.h> - -#include <asm/types.h> -#include <asm/setup.h> -#include <asm/memory.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/tlbflush.h> -#include <asm/pgtable.h> - -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/pci.h> - -static int __init espresso_pci_init(void) -{ - if (machine_is_espresso()) - ixp23xx_pci_slave_init(); - - return 0; -}; -subsys_initcall(espresso_pci_init); - -static struct physmap_flash_data espresso_flash_data = { - .width = 2, -}; - -static struct resource espresso_flash_resource = { - .start = 0x90000000, - .end = 0x91ffffff, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device espresso_flash = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &espresso_flash_data, - }, - .num_resources = 1, - .resource = &espresso_flash_resource, -}; - -static void __init espresso_init(void) -{ - platform_device_register(&espresso_flash); - - /* - * Mark flash as writeable. - */ - IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; - - ixp23xx_sys_init(); -} - -MACHINE_START(ESPRESSO, "IP Fabrics Double Espresso") - /* Maintainer: Lennert Buytenhek */ - .phys_io = IXP23XX_PERIPHERAL_PHYS, - .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, - .map_io = ixp23xx_map_io, - .init_irq = ixp23xx_init_irq, - .timer = &ixp23xx_timer, - .boot_params = 0x00000100, - .init_machine = espresso_init, -MACHINE_END diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c deleted file mode 100644 index 7a86a2516ea..00000000000 --- a/arch/arm/mach-ixp23xx/ixdp2351.c +++ /dev/null @@ -1,344 +0,0 @@ -/* - * arch/arm/mach-ixp23xx/ixdp2351.c - * - * IXDP2351 board-specific routines - * - * Author: Deepak Saxena <dsaxena@plexity.net> - * - * Copyright 2005 (c) MontaVista Software, Inc. - * - * Based on 2.4 code Copyright 2004 (c) Intel Corporation - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/bitops.h> -#include <linux/ioport.h> -#include <linux/serial.h> -#include <linux/serial_8250.h> -#include <linux/serial_core.h> -#include <linux/device.h> -#include <linux/mm.h> -#include <linux/pci.h> -#include <linux/mtd/physmap.h> - -#include <asm/types.h> -#include <asm/setup.h> -#include <asm/memory.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> -#include <asm/system.h> -#include <asm/tlbflush.h> -#include <asm/pgtable.h> - -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/pci.h> - -/* - * IXDP2351 Interrupt Handling - */ -static void ixdp2351_inta_mask(unsigned int irq) -{ - *IXDP2351_CPLD_INTA_MASK_SET_REG = IXDP2351_INTA_IRQ_MASK(irq); -} - -static void ixdp2351_inta_unmask(unsigned int irq) -{ - *IXDP2351_CPLD_INTA_MASK_CLR_REG = IXDP2351_INTA_IRQ_MASK(irq); -} - -static void ixdp2351_inta_handler(unsigned int irq, struct irq_desc *desc) -{ - u16 ex_interrupt = - *IXDP2351_CPLD_INTA_STAT_REG & IXDP2351_INTA_IRQ_VALID; - int i; - - desc->chip->mask(irq); - - for (i = 0; i < IXDP2351_INTA_IRQ_NUM; i++) { - if (ex_interrupt & (1 << i)) { - struct irq_desc *cpld_desc; - int cpld_irq = - IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + i); - cpld_desc = irq_desc + cpld_irq; - desc_handle_irq(cpld_irq, cpld_desc); - } - } - - desc->chip->unmask(irq); -} - -static struct irq_chip ixdp2351_inta_chip = { - .ack = ixdp2351_inta_mask, - .mask = ixdp2351_inta_mask, - .unmask = ixdp2351_inta_unmask -}; - -static void ixdp2351_intb_mask(unsigned int irq) -{ - *IXDP2351_CPLD_INTB_MASK_SET_REG = IXDP2351_INTB_IRQ_MASK(irq); -} - -static void ixdp2351_intb_unmask(unsigned int irq) -{ - *IXDP2351_CPLD_INTB_MASK_CLR_REG = IXDP2351_INTB_IRQ_MASK(irq); -} - -static void ixdp2351_intb_handler(unsigned int irq, struct irq_desc *desc) -{ - u16 ex_interrupt = - *IXDP2351_CPLD_INTB_STAT_REG & IXDP2351_INTB_IRQ_VALID; - int i; - - desc->chip->ack(irq); - - for (i = 0; i < IXDP2351_INTB_IRQ_NUM; i++) { - if (ex_interrupt & (1 << i)) { - struct irq_desc *cpld_desc; - int cpld_irq = - IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + i); - cpld_desc = irq_desc + cpld_irq; - desc_handle_irq(cpld_irq, cpld_desc); - } - } - - desc->chip->unmask(irq); -} - -static struct irq_chip ixdp2351_intb_chip = { - .ack = ixdp2351_intb_mask, - .mask = ixdp2351_intb_mask, - .unmask = ixdp2351_intb_unmask -}; - -void ixdp2351_init_irq(void) -{ - int irq; - - /* Mask all interrupts from CPLD, disable simulation */ - *IXDP2351_CPLD_INTA_MASK_SET_REG = (u16) -1; - *IXDP2351_CPLD_INTB_MASK_SET_REG = (u16) -1; - *IXDP2351_CPLD_INTA_SIM_REG = 0; - *IXDP2351_CPLD_INTB_SIM_REG = 0; - - ixp23xx_init_irq(); - - for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE); - irq < - IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + IXDP2351_INTA_IRQ_NUM); - irq++) { - if (IXDP2351_INTA_IRQ_MASK(irq) & IXDP2351_INTA_IRQ_VALID) { - set_irq_flags(irq, IRQF_VALID); - set_irq_handler(irq, handle_level_irq); - set_irq_chip(irq, &ixdp2351_inta_chip); - } - } - - for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE); - irq < - IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + IXDP2351_INTB_IRQ_NUM); - irq++) { - if (IXDP2351_INTB_IRQ_MASK(irq) & IXDP2351_INTB_IRQ_VALID) { - set_irq_flags(irq, IRQF_VALID); - set_irq_handler(irq, handle_level_irq); - set_irq_chip(irq, &ixdp2351_intb_chip); - } - } - - set_irq_chained_handler(IRQ_IXP23XX_INTA, ixdp2351_inta_handler); - set_irq_chained_handler(IRQ_IXP23XX_INTB, ixdp2351_intb_handler); -} - -/* - * IXDP2351 PCI - */ - -/* - * This board does not do normal PCI IRQ routing, or any - * sort of swizzling, so we just need to check where on the - * bus the device is and figure out what CPLD pin it is - * being routed to. - */ -#define DEVPIN(dev, pin) ((pin) | ((dev) << 3)) - -static int __init ixdp2351_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - u8 bus = dev->bus->number; - u32 devpin = DEVPIN(PCI_SLOT(dev->devfn), pin); - struct pci_bus *tmp_bus = dev->bus; - - /* Primary bus, no interrupts here */ - if (!bus) - return -1; - - /* Lookup first leaf in bus tree */ - while ((tmp_bus->parent != NULL) && (tmp_bus->parent->parent != NULL)) - tmp_bus = tmp_bus->parent; - - /* Select between known bridges */ - switch (tmp_bus->self->devfn | (tmp_bus->self->bus->number << 8)) { - /* Device is located after first bridge */ - case 0x0008: - if (tmp_bus == dev->bus) { - /* Device is located directy after first bridge */ - switch (devpin) { - /* Onboard 82546 */ - case DEVPIN(1, 1): /* Onboard 82546 ch 0 */ - return IRQ_IXDP2351_INTA_82546; - case DEVPIN(1, 2): /* Onboard 82546 ch 1 */ - return IRQ_IXDP2351_INTB_82546; - /* PMC SLOT */ - case DEVPIN(0, 1): /* PMCP INTA# */ - case DEVPIN(2, 4): /* PMCS INTD# */ - return IRQ_IXDP2351_SPCI_PMC_INTA; - case DEVPIN(0, 2): /* PMCP INTB# */ - case DEVPIN(2, 1): /* PMCS INTA# */ - return IRQ_IXDP2351_SPCI_PMC_INTB; - case DEVPIN(0, 3): /* PMCP INTC# */ - case DEVPIN(2, 2): /* PMCS INTB# */ - return IRQ_IXDP2351_SPCI_PMC_INTC; - case DEVPIN(0, 4): /* PMCP INTD# */ - case DEVPIN(2, 3): /* PMCS INTC# */ - return IRQ_IXDP2351_SPCI_PMC_INTD; - } - } else { - /* Device is located indirectly after first bridge */ - /* Not supported now */ - return -1; - } - break; - case 0x0010: - if (tmp_bus == dev->bus) { - /* Device is located directy after second bridge */ - /* Secondary bus of second bridge */ - switch (devpin) { - case DEVPIN(0, 1): /* DB#0 */ - case DEVPIN(0, 2): - case DEVPIN(0, 3): - case DEVPIN(0, 4): - return IRQ_IXDP2351_SPCI_DB_0; - case DEVPIN(1, 1): /* DB#1 */ - case DEVPIN(1, 2): - case DEVPIN(1, 3): - case DEVPIN(1, 4): - return IRQ_IXDP2351_SPCI_DB_1; - case DEVPIN(2, 1): /* FIC1 */ - case DEVPIN(2, 2): - case DEVPIN(2, 3): - case DEVPIN(2, 4): - case DEVPIN(3, 1): /* FIC2 */ - case DEVPIN(3, 2): - case DEVPIN(3, 3): - case DEVPIN(3, 4): - return IRQ_IXDP2351_SPCI_FIC; - } - } else { - /* Device is located indirectly after second bridge */ - /* Not supported now */ - return -1; - } - break; - } - - return -1; -} - -struct hw_pci ixdp2351_pci __initdata = { - .nr_controllers = 1, - .preinit = ixp23xx_pci_preinit, - .setup = ixp23xx_pci_setup, - .scan = ixp23xx_pci_scan_bus, - .map_irq = ixdp2351_map_irq, -}; - -int __init ixdp2351_pci_init(void) -{ - if (machine_is_ixdp2351()) - pci_common_init(&ixdp2351_pci); - - return 0; -} - -subsys_initcall(ixdp2351_pci_init); - -/* - * IXDP2351 Static Mapped I/O - */ -static struct map_desc ixdp2351_io_desc[] __initdata = { - { - .virtual = IXDP2351_NP_VIRT_BASE, - .pfn = __phys_to_pfn((u64)IXDP2351_NP_PHYS_BASE), - .length = IXDP2351_NP_PHYS_SIZE, - .type = MT_DEVICE - }, { - .virtual = IXDP2351_BB_BASE_VIRT, - .pfn = __phys_to_pfn((u64)IXDP2351_BB_BASE_PHYS), - .length = IXDP2351_BB_SIZE, - .type = MT_DEVICE - } -}; - -static void __init ixdp2351_map_io(void) -{ - ixp23xx_map_io(); - iotable_init(ixdp2351_io_desc, ARRAY_SIZE(ixdp2351_io_desc)); -} - -static struct physmap_flash_data ixdp2351_flash_data = { - .width = 1, -}; - -static struct resource ixdp2351_flash_resource = { - .start = 0x90000000, - .end = 0x93ffffff, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device ixdp2351_flash = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &ixdp2351_flash_data, - }, - .num_resources = 1, - .resource = &ixdp2351_flash_resource, -}; - -static void __init ixdp2351_init(void) -{ - platform_device_register(&ixdp2351_flash); - - /* - * Mark flash as writeable - */ - IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE; - - ixp23xx_sys_init(); -} - -MACHINE_START(IXDP2351, "Intel IXDP2351 Development Platform") - /* Maintainer: MontaVista Software, Inc. */ - .phys_io = IXP23XX_PERIPHERAL_PHYS, - .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, - .map_io = ixdp2351_map_io, - .init_irq = ixdp2351_init_irq, - .timer = &ixp23xx_timer, - .boot_params = 0x00000100, - .init_machine = ixdp2351_init, -MACHINE_END diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c deleted file mode 100644 index ac7d43d23c2..00000000000 --- a/arch/arm/mach-ixp23xx/pci.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * arch/arm/mach-ixp23xx/pci.c - * - * PCI routines for IXP23XX based systems - * - * Copyright (c) 2005 MontaVista Software, Inc. - * - * based on original code: - * - * Author: Naeem Afzal <naeem.m.afzal@intel.com> - * Copyright 2002-2005 Intel Corp. - * - * 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. - */ - -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/delay.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/sizes.h> -#include <asm/system.h> -#include <asm/mach/pci.h> -#include <asm/mach-types.h> -#include <asm/hardware.h> - -extern int (*external_fault) (unsigned long, struct pt_regs *); - -static volatile int pci_master_aborts = 0; - -#ifdef DEBUG -#define DBG(x...) printk(x) -#else -#define DBG(x...) -#endif - -int clear_master_aborts(void); - -static u32 -*ixp23xx_pci_config_addr(unsigned int bus_nr, unsigned int devfn, int where) -{ - u32 *paddress; - - /* - * Must be dword aligned - */ - where &= ~3; - - /* - * For top bus, generate type 0, else type 1 - */ - if (!bus_nr) { - if (PCI_SLOT(devfn) >= 8) - return 0; - - paddress = (u32 *) (IXP23XX_PCI_CFG0_VIRT - | (1 << (PCI_SLOT(devfn) + 16)) - | (PCI_FUNC(devfn) << 8) | where); - } else { - paddress = (u32 *) (IXP23XX_PCI_CFG1_VIRT - | (bus_nr << 16) - | (PCI_SLOT(devfn) << 11) - | (PCI_FUNC(devfn) << 8) | where); - } - - return paddress; -} - -/* - * Mask table, bits to mask for quantity of size 1, 2 or 4 bytes. - * 0 and 3 are not valid indexes... - */ -static u32 bytemask[] = { - /*0*/ 0, - /*1*/ 0xff, - /*2*/ 0xffff, - /*3*/ 0, - /*4*/ 0xffffffff, -}; - -static int ixp23xx_pci_read_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 *value) -{ - u32 n; - u32 *addr; - - n = where % 4; - - DBG("In config_read(%d) %d from dev %d:%d:%d\n", size, where, - bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn)); - - addr = ixp23xx_pci_config_addr(bus->number, devfn, where); - if (!addr) - return PCIBIOS_DEVICE_NOT_FOUND; - - pci_master_aborts = 0; - *value = (*addr >> (8*n)) & bytemask[size]; - if (pci_master_aborts) { - pci_master_aborts = 0; - *value = 0xffffffff; - return PCIBIOS_DEVICE_NOT_FOUND; - } - - return PCIBIOS_SUCCESSFUL; -} - -/* - * We don't do error checking on the address for writes. - * It's assumed that the user checked for the device existing first - * by doing a read first. - */ -static int ixp23xx_pci_write_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 value) -{ - u32 mask; - u32 *addr; - u32 temp; - - mask = ~(bytemask[size] << ((where % 0x4) * 8)); - addr = ixp23xx_pci_config_addr(bus->number, devfn, where); - if (!addr) - return PCIBIOS_DEVICE_NOT_FOUND; - temp = (u32) (value) << ((where % 0x4) * 8); - *addr = (*addr & mask) | temp; - - clear_master_aborts(); - - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops ixp23xx_pci_ops = { - .read = ixp23xx_pci_read_config, - .write = ixp23xx_pci_write_config, -}; - -struct pci_bus *ixp23xx_pci_scan_bus(int nr, struct pci_sys_data *sysdata) -{ - return pci_scan_bus(sysdata->busnr, &ixp23xx_pci_ops, sysdata); -} - -int ixp23xx_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs) -{ - volatile unsigned long temp; - unsigned long flags; - - pci_master_aborts = 1; - - local_irq_save(flags); - temp = *IXP23XX_PCI_CONTROL; - - /* - * master abort and cmd tgt err - */ - if (temp & ((1 << 8) | (1 << 5))) - *IXP23XX_PCI_CONTROL = temp; - - temp = *IXP23XX_PCI_CMDSTAT; - - if (temp & (1 << 29)) - *IXP23XX_PCI_CMDSTAT = temp; - local_irq_restore(flags); - - /* - * If it was an imprecise abort, then we need to correct the - * return address to be _after_ the instruction. - */ - if (fsr & (1 << 10)) - regs->ARM_pc += 4; - - return 0; -} - -int clear_master_aborts(void) -{ - volatile u32 temp; - - temp = *IXP23XX_PCI_CONTROL; - - /* - * master abort and cmd tgt err - */ - if (temp & ((1 << 8) | (1 << 5))) - *IXP23XX_PCI_CONTROL = temp; - - temp = *IXP23XX_PCI_CMDSTAT; - - if (temp & (1 << 29)) - *IXP23XX_PCI_CMDSTAT = temp; - - return 0; -} - -static void __init ixp23xx_pci_common_init(void) -{ -#ifdef __ARMEB__ - *IXP23XX_PCI_CONTROL |= 0x20000; /* set I/O swapping */ -#endif - /* - * ADDR_31 needs to be clear for PCI memory access to CPP memory - */ - *IXP23XX_CPP2XSI_CURR_XFER_REG3 &= ~IXP23XX_CPP2XSI_ADDR_31; - *IXP23XX_CPP2XSI_CURR_XFER_REG3 |= IXP23XX_CPP2XSI_PSH_OFF; - - /* - * Select correct memory for PCI inbound transactions - */ - if (ixp23xx_cpp_boot()) { - *IXP23XX_PCI_CPP_ADDR_BITS &= ~(1 << 1); - } else { - *IXP23XX_PCI_CPP_ADDR_BITS |= (1 << 1); - - /* - * Enable coherency on A2 silicon. - */ - if (arch_is_coherent()) - *IXP23XX_CPP2XSI_CURR_XFER_REG3 &= ~IXP23XX_CPP2XSI_COH_OFF; - } -} - -void __init ixp23xx_pci_preinit(void) -{ - ixp23xx_pci_common_init(); - - hook_fault_code(16+6, ixp23xx_pci_abort_handler, SIGBUS, - "PCI config cycle to non-existent device"); - - *IXP23XX_PCI_ADDR_EXT = 0x0000e000; -} - -/* - * Prevent PCI layer from seeing the inbound host-bridge resources - */ -static void __devinit pci_fixup_ixp23xx(struct pci_dev *dev) -{ - int i; - - dev->class &= 0xff; - dev->class |= PCI_CLASS_BRIDGE_HOST << 8; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - dev->resource[i].flags = 0; - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9002, pci_fixup_ixp23xx); - -/* - * IXP2300 systems often have large resource requirements, so we just - * use our own resource space. - */ -static struct resource ixp23xx_pci_mem_space = { - .start = IXP23XX_PCI_MEM_START, - .end = IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE - 1, - .flags = IORESOURCE_MEM, - .name = "PCI Mem Space" -}; - -static struct resource ixp23xx_pci_io_space = { - .start = 0x00000100, - .end = 0x01ffffff, - .flags = IORESOURCE_IO, - .name = "PCI I/O Space" -}; - -int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys) -{ - if (nr >= 1) - return 0; - - sys->resource[0] = &ixp23xx_pci_io_space; - sys->resource[1] = &ixp23xx_pci_mem_space; - sys->resource[2] = NULL; - - return 1; -} - -void ixp23xx_pci_slave_init(void) -{ - ixp23xx_pci_common_init(); -} diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c deleted file mode 100644 index d06e21b70de..00000000000 --- a/arch/arm/mach-ixp23xx/roadrunner.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * arch/arm/mach-ixp23xx/roadrunner.c - * - * RoadRunner board-specific routines - * - * Author: Deepak Saxena <dsaxena@plexity.net> - * - * Copyright 2005 (c) MontaVista Software, Inc. - * - * Based on 2.4 code Copyright 2005 (c) ADI Engineering Corporation - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/serial.h> -#include <linux/tty.h> -#include <linux/bitops.h> -#include <linux/ioport.h> -#include <linux/serial.h> -#include <linux/serial_8250.h> -#include <linux/serial_core.h> -#include <linux/device.h> -#include <linux/mm.h> -#include <linux/pci.h> -#include <linux/mtd/physmap.h> - -#include <asm/types.h> -#include <asm/setup.h> -#include <asm/memory.h> -#include <asm/hardware.h> -#include <asm/mach-types.h> -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/tlbflush.h> -#include <asm/pgtable.h> - -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/mach/arch.h> -#include <asm/mach/irq.h> -#include <asm/mach/pci.h> - -/* - * Interrupt mapping - */ -#define INTA IRQ_ROADRUNNER_PCI_INTA -#define INTB IRQ_ROADRUNNER_PCI_INTB -#define INTC IRQ_ROADRUNNER_PCI_INTC -#define INTD IRQ_ROADRUNNER_PCI_INTD - -#define INTC_PIN IXP23XX_GPIO_PIN_11 -#define INTD_PIN IXP23XX_GPIO_PIN_12 - -static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin) -{ - static int pci_card_slot_irq[] = {INTB, INTC, INTD, INTA}; - static int pmc_card_slot_irq[] = {INTA, INTB, INTC, INTD}; - static int usb_irq[] = {INTB, INTC, INTD, -1}; - static int mini_pci_1_irq[] = {INTB, INTC, -1, -1}; - static int mini_pci_2_irq[] = {INTC, INTD, -1, -1}; - - switch(dev->bus->number) { - case 0: - switch(dev->devfn) { - case 0x0: // PCI-PCI bridge - break; - case 0x8: // PCI Card Slot - return pci_card_slot_irq[pin - 1]; - case 0x10: // PMC Slot - return pmc_card_slot_irq[pin - 1]; - case 0x18: // PMC Slot Secondary Agent - break; - case 0x20: // IXP Processor - break; - default: - return NO_IRQ; - } - break; - - case 1: - switch(dev->devfn) { - case 0x0: // IDE Controller - return (pin == 1) ? INTC : -1; - case 0x8: // USB fun 0 - case 0x9: // USB fun 1 - case 0xa: // USB fun 2 - return usb_irq[pin - 1]; - case 0x10: // Mini PCI 1 - return mini_pci_1_irq[pin-1]; - case 0x18: // Mini PCI 2 - return mini_pci_2_irq[pin-1]; - case 0x20: // MEM slot - return (pin == 1) ? INTA : -1; - default: - return NO_IRQ; - } - break; - - default: - return NO_IRQ; - } - - return NO_IRQ; -} - -static void roadrunner_pci_preinit(void) -{ - set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQT_LOW); - set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQT_LOW); - - ixp23xx_pci_preinit(); -} - -static struct hw_pci roadrunner_pci __initdata = { - .nr_controllers = 1, - .preinit = roadrunner_pci_preinit, - .setup = ixp23xx_pci_setup, - .scan = ixp23xx_pci_scan_bus, - .map_irq = roadrunner_map_irq, -}; - -static int __init roadrunner_pci_init(void) -{ - if (machine_is_roadrunner()) - pci_common_init(&roadrunner_pci); - - return 0; -}; - -subsys_initcall(roadrunner_pci_init); - -static struct physmap_flash_data roadrunner_flash_data = { - .width = 2, -}; - -static struct resource roadrunner_flash_resource = { - .start = 0x90000000, - .end = 0x93ffffff, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device roadrunner_flash = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &roadrunner_flash_data, - }, - .num_resources = 1, - .resource = &roadrunner_flash_resource, -}; - -static void __init roadrunner_init(void) -{ - platform_device_register(&roadrunner_flash); - - /* - * Mark flash as writeable - */ - IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE; - IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE; - - ixp23xx_sys_init(); -} - -MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform") - /* Maintainer: Deepak Saxena */ - .phys_io = IXP23XX_PERIPHERAL_PHYS, - .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, - .map_io = ixp23xx_map_io, - .init_irq = ixp23xx_init_irq, - .timer = &ixp23xx_timer, - .boot_params = 0x00000100, - .init_machine = roadrunner_init, -MACHINE_END |