diff options
Diffstat (limited to 'arch/sh/cchips/hd6446x')
| -rw-r--r-- | arch/sh/cchips/hd6446x/Makefile | 1 | ||||
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64465/Makefile | 6 | ||||
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64465/gpio.c | 196 | ||||
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64465/io.c | 211 | ||||
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64465/setup.c | 181 |
5 files changed, 0 insertions, 595 deletions
diff --git a/arch/sh/cchips/hd6446x/Makefile b/arch/sh/cchips/hd6446x/Makefile index f7de407..9682e3a 100644 --- a/arch/sh/cchips/hd6446x/Makefile +++ b/arch/sh/cchips/hd6446x/Makefile @@ -1,4 +1,3 @@ obj-$(CONFIG_HD64461) += hd64461.o -obj-$(CONFIG_HD64465) += hd64465/ EXTRA_CFLAGS += -Werror diff --git a/arch/sh/cchips/hd6446x/hd64465/Makefile b/arch/sh/cchips/hd6446x/hd64465/Makefile deleted file mode 100644 index f66edcb..0000000 --- a/arch/sh/cchips/hd6446x/hd64465/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for the HD64465 -# - -obj-y := setup.o io.o gpio.o - diff --git a/arch/sh/cchips/hd6446x/hd64465/gpio.c b/arch/sh/cchips/hd6446x/hd64465/gpio.c deleted file mode 100644 index 4343185..0000000 --- a/arch/sh/cchips/hd6446x/hd64465/gpio.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * $Id: gpio.c,v 1.4 2003/05/19 22:24:18 lethal Exp $ - * by Greg Banks <gbanks@pocketpenguins.com> - * (c) 2000 PocketPenguins Inc - * - * GPIO pin support for HD64465 companion chip. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/ioport.h> -#include <asm/io.h> -#include <asm/hd64465/gpio.h> - -#define _PORTOF(portpin) (((portpin)>>3)&0x7) -#define _PINOF(portpin) ((portpin)&0x7) - -/* Register addresses parametrised on port */ -#define GPIO_CR(port) (HD64465_REG_GPACR+((port)<<1)) -#define GPIO_DR(port) (HD64465_REG_GPADR+((port)<<1)) -#define GPIO_ICR(port) (HD64465_REG_GPAICR+((port)<<1)) -#define GPIO_ISR(port) (HD64465_REG_GPAISR+((port)<<1)) - -#define GPIO_NPORTS 5 - -#define MODNAME "hd64465_gpio" - -EXPORT_SYMBOL(hd64465_gpio_configure); -EXPORT_SYMBOL(hd64465_gpio_get_pin); -EXPORT_SYMBOL(hd64465_gpio_get_port); -EXPORT_SYMBOL(hd64465_gpio_register_irq); -EXPORT_SYMBOL(hd64465_gpio_set_pin); -EXPORT_SYMBOL(hd64465_gpio_set_port); -EXPORT_SYMBOL(hd64465_gpio_unregister_irq); - -/* TODO: each port should be protected with a spinlock */ - - -void hd64465_gpio_configure(int portpin, int direction) -{ - unsigned short cr; - unsigned int shift = (_PINOF(portpin)<<1); - - cr = inw(GPIO_CR(_PORTOF(portpin))); - cr &= ~(3<<shift); - cr |= direction<<shift; - outw(cr, GPIO_CR(_PORTOF(portpin))); -} - -void hd64465_gpio_set_pin(int portpin, unsigned int value) -{ - unsigned short d; - unsigned short mask = 1<<(_PINOF(portpin)); - - d = inw(GPIO_DR(_PORTOF(portpin))); - if (value) - d |= mask; - else - d &= ~mask; - outw(d, GPIO_DR(_PORTOF(portpin))); -} - -unsigned int hd64465_gpio_get_pin(int portpin) -{ - return inw(GPIO_DR(_PORTOF(portpin))) & (1<<(_PINOF(portpin))); -} - -/* TODO: for cleaner atomicity semantics, add a mask to this routine */ - -void hd64465_gpio_set_port(int port, unsigned int value) -{ - outw(value, GPIO_DR(port)); -} - -unsigned int hd64465_gpio_get_port(int port) -{ - return inw(GPIO_DR(port)); -} - - -static struct { - void (*func)(int portpin, void *dev); - void *dev; -} handlers[GPIO_NPORTS * 8]; - -static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev) -{ - unsigned short port, pin, isr, mask, portpin; - - for (port=0 ; port<GPIO_NPORTS ; port++) { - isr = inw(GPIO_ISR(port)); - - for (pin=0 ; pin<8 ; pin++) { - mask = 1<<pin; - if (isr & mask) { - portpin = (port<<3)|pin; - if (handlers[portpin].func != 0) - handlers[portpin].func(portpin, handlers[portpin].dev); - else - printk(KERN_NOTICE "unexpected GPIO interrupt, pin %c%d\n", - port+'A', (int)pin); - } - } - - /* Write 1s back to ISR to clear it? That's what the manual says.. */ - outw(isr, GPIO_ISR(port)); - } - - return IRQ_HANDLED; -} - -void hd64465_gpio_register_irq(int portpin, int mode, - void (*handler)(int portpin, void *dev), void *dev) -{ - unsigned long flags; - unsigned short icr, mask; - - if (handler == 0) - return; - - local_irq_save(flags); - - handlers[portpin].func = handler; - handlers[portpin].dev = dev; - - /* - * Configure Interrupt Control Register - */ - icr = inw(GPIO_ICR(_PORTOF(portpin))); - mask = (1<<_PINOF(portpin)); - - /* unmask interrupt */ - icr &= ~mask; - - /* set TS bit */ - mask <<= 8; - icr &= ~mask; - if (mode == HD64465_GPIO_RISING) - icr |= mask; - - outw(icr, GPIO_ICR(_PORTOF(portpin))); - - local_irq_restore(flags); -} - -void hd64465_gpio_unregister_irq(int portpin) -{ - unsigned long flags; - unsigned short icr; - - local_irq_save(flags); - - /* - * Configure Interrupt Control Register - */ - icr = inw(GPIO_ICR(_PORTOF(portpin))); - icr |= (1<<_PINOF(portpin)); /* mask interrupt */ - outw(icr, GPIO_ICR(_PORTOF(portpin))); - - handlers[portpin].func = 0; - handlers[portpin].dev = 0; - - local_irq_restore(flags); -} - -static int __init hd64465_gpio_init(void) -{ - if (!request_region(HD64465_REG_GPACR, 0x1000, MODNAME)) - return -EBUSY; - if (request_irq(HD64465_IRQ_GPIO, hd64465_gpio_interrupt, - IRQF_DISABLED, MODNAME, 0)) - goto out_irqfailed; - - printk("HD64465 GPIO layer on irq %d\n", HD64465_IRQ_GPIO); - - return 0; - -out_irqfailed: - release_region(HD64465_REG_GPACR, 0x1000); - - return -EINVAL; -} - -static void __exit hd64465_gpio_exit(void) -{ - release_region(HD64465_REG_GPACR, 0x1000); - free_irq(HD64465_IRQ_GPIO, 0); -} - -module_init(hd64465_gpio_init); -module_exit(hd64465_gpio_exit); - -MODULE_LICENSE("GPL"); - diff --git a/arch/sh/cchips/hd6446x/hd64465/io.c b/arch/sh/cchips/hd6446x/hd64465/io.c deleted file mode 100644 index 58704d0..0000000 --- a/arch/sh/cchips/hd6446x/hd64465/io.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * $Id: io.c,v 1.4 2003/08/03 03:05:10 lethal Exp $ - * by Greg Banks <gbanks@pocketpenguins.com> - * (c) 2000 PocketPenguins Inc - * - * Derived from io_hd64461.c, which bore the message: - * Copyright (C) 2000 YAEGASHI Takeshi - * - * Typical I/O routines for HD64465 system. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <asm/io.h> -#include <asm/hd64465/hd64465.h> - - -#define HD64465_DEBUG 0 - -#if HD64465_DEBUG -#define DPRINTK(args...) printk(args) -#define DIPRINTK(n, args...) if (hd64465_io_debug>(n)) printk(args) -#else -#define DPRINTK(args...) -#define DIPRINTK(n, args...) -#endif - - - -/* This is a hack suitable only for debugging IO port problems */ -int hd64465_io_debug; -EXPORT_SYMBOL(hd64465_io_debug); - -/* Low iomap maps port 0-1K to addresses in 8byte chunks */ -#define HD64465_IOMAP_LO_THRESH 0x400 -#define HD64465_IOMAP_LO_SHIFT 3 -#define HD64465_IOMAP_LO_MASK ((1<<HD64465_IOMAP_LO_SHIFT)-1) -#define HD64465_IOMAP_LO_NMAP (HD64465_IOMAP_LO_THRESH>>HD64465_IOMAP_LO_SHIFT) -static unsigned long hd64465_iomap_lo[HD64465_IOMAP_LO_NMAP]; -static unsigned char hd64465_iomap_lo_shift[HD64465_IOMAP_LO_NMAP]; - -/* High iomap maps port 1K-64K to addresses in 1K chunks */ -#define HD64465_IOMAP_HI_THRESH 0x10000 -#define HD64465_IOMAP_HI_SHIFT 10 -#define HD64465_IOMAP_HI_MASK ((1<<HD64465_IOMAP_HI_SHIFT)-1) -#define HD64465_IOMAP_HI_NMAP (HD64465_IOMAP_HI_THRESH>>HD64465_IOMAP_HI_SHIFT) -static unsigned long hd64465_iomap_hi[HD64465_IOMAP_HI_NMAP]; -static unsigned char hd64465_iomap_hi_shift[HD64465_IOMAP_HI_NMAP]; - -#define PORT2ADDR(x) (sh_mv.mv_isa_port2addr(x)) - -void hd64465_port_map(unsigned short baseport, unsigned int nports, - unsigned long addr, unsigned char shift) -{ - unsigned int port, endport = baseport + nports; - - DPRINTK("hd64465_port_map(base=0x%04hx, n=0x%04hx, addr=0x%08lx,endport=0x%04x)\n", - baseport, nports, addr,endport); - - for (port = baseport ; - port < endport && port < HD64465_IOMAP_LO_THRESH ; - port += (1<<HD64465_IOMAP_LO_SHIFT)) { - DPRINTK(" maplo[0x%x] = 0x%08lx\n", port, addr); - hd64465_iomap_lo[port>>HD64465_IOMAP_LO_SHIFT] = addr; - hd64465_iomap_lo_shift[port>>HD64465_IOMAP_LO_SHIFT] = shift; - addr += (1<<(HD64465_IOMAP_LO_SHIFT)); - } - - for (port = max_t(unsigned int, baseport, HD64465_IOMAP_LO_THRESH); - port < endport && port < HD64465_IOMAP_HI_THRESH ; - port += (1<<HD64465_IOMAP_HI_SHIFT)) { - DPRINTK(" maphi[0x%x] = 0x%08lx\n", port, addr); - hd64465_iomap_hi[port>>HD64465_IOMAP_HI_SHIFT] = addr; - hd64465_iomap_hi_shift[port>>HD64465_IOMAP_HI_SHIFT] = shift; - addr += (1<<(HD64465_IOMAP_HI_SHIFT)); - } -} -EXPORT_SYMBOL(hd64465_port_map); - -void hd64465_port_unmap(unsigned short baseport, unsigned int nports) -{ - unsigned int port, endport = baseport + nports; - - DPRINTK("hd64465_port_unmap(base=0x%04hx, n=0x%04hx)\n", - baseport, nports); - - for (port = baseport ; - port < endport && port < HD64465_IOMAP_LO_THRESH ; - port += (1<<HD64465_IOMAP_LO_SHIFT)) { - hd64465_iomap_lo[port>>HD64465_IOMAP_LO_SHIFT] = 0; - } - - for (port = max_t(unsigned int, baseport, HD64465_IOMAP_LO_THRESH); - port < endport && port < HD64465_IOMAP_HI_THRESH ; - port += (1<<HD64465_IOMAP_HI_SHIFT)) { - hd64465_iomap_hi[port>>HD64465_IOMAP_HI_SHIFT] = 0; - } -} -EXPORT_SYMBOL(hd64465_port_unmap); - -unsigned long hd64465_isa_port2addr(unsigned long port) -{ - unsigned long addr = 0; - unsigned char shift; - - /* handle remapping of low IO ports */ - if (port < HD64465_IOMAP_LO_THRESH) { - addr = hd64465_iomap_lo[port >> HD64465_IOMAP_LO_SHIFT]; - shift = hd64465_iomap_lo_shift[port >> HD64465_IOMAP_LO_SHIFT]; - if (addr != 0) - addr += (port & HD64465_IOMAP_LO_MASK) << shift; - else - printk(KERN_NOTICE "io_hd64465: access to un-mapped port %lx\n", port); - } else if (port < HD64465_IOMAP_HI_THRESH) { - addr = hd64465_iomap_hi[port >> HD64465_IOMAP_HI_SHIFT]; - shift = hd64465_iomap_hi_shift[port >> HD64465_IOMAP_HI_SHIFT]; - if (addr != 0) - addr += (port & HD64465_IOMAP_HI_MASK) << shift; - else - printk(KERN_NOTICE "io_hd64465: access to un-mapped port %lx\n", port); - } - - /* HD64465 internal devices (0xb0000000) */ - else if (port < 0x20000) - addr = CONFIG_HD64465_IOBASE + port - 0x10000; - - /* Whole physical address space (0xa0000000) */ - else - addr = P2SEGADDR(port); - - DIPRINTK(2, "PORT2ADDR(0x%08lx) = 0x%08lx\n", port, addr); - - return addr; -} - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - -unsigned char hd64465_inb(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned long b = (addr == 0 ? 0 : *(volatile unsigned char*)addr); - - DIPRINTK(0, "inb(%08lx) = %02x\n", addr, (unsigned)b); - return b; -} - -unsigned char hd64465_inb_p(unsigned long port) -{ - unsigned long v; - unsigned long addr = PORT2ADDR(port); - - v = (addr == 0 ? 0 : *(volatile unsigned char*)addr); - delay(); - DIPRINTK(0, "inb_p(%08lx) = %02x\n", addr, (unsigned)v); - return v; -} - -unsigned short hd64465_inw(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned long b = (addr == 0 ? 0 : *(volatile unsigned short*)addr); - DIPRINTK(0, "inw(%08lx) = %04lx\n", addr, b); - return b; -} - -unsigned int hd64465_inl(unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - unsigned int b = (addr == 0 ? 0 : *(volatile unsigned long*)addr); - DIPRINTK(0, "inl(%08lx) = %08x\n", addr, b); - return b; -} - -void hd64465_outb(unsigned char b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - - DIPRINTK(0, "outb(%02x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned char*)addr = b; -} - -void hd64465_outb_p(unsigned char b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - - DIPRINTK(0, "outb_p(%02x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned char*)addr = b; - delay(); -} - -void hd64465_outw(unsigned short b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - DIPRINTK(0, "outw(%04x, %08lx)\n", (unsigned)b, addr); - if (addr != 0) - *(volatile unsigned short*)addr = b; -} - -void hd64465_outl(unsigned int b, unsigned long port) -{ - unsigned long addr = PORT2ADDR(port); - DIPRINTK(0, "outl(%08x, %08lx)\n", b, addr); - if (addr != 0) - *(volatile unsigned long*)addr = b; -} - diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c deleted file mode 100644 index 9b8820c..0000000 --- a/arch/sh/cchips/hd6446x/hd64465/setup.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * $Id: setup.c,v 1.4 2003/08/03 03:05:10 lethal Exp $ - * - * Setup and IRQ handling code for the HD64465 companion chip. - * by Greg Banks <gbanks@pocketpenguins.com> - * Copyright (c) 2000 PocketPenguins Inc - * - * Derived from setup_hd64461.c which bore the message: - * Copyright (C) 2000 YAEGASHI Takeshi - */ - -#include <linux/sched.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/hd64465/hd64465.h> - -static void disable_hd64465_irq(unsigned int irq) -{ - unsigned short nimr; - unsigned short mask = 1 << (irq - HD64465_IRQ_BASE); - - pr_debug("disable_hd64465_irq(%d): mask=%x\n", irq, mask); - nimr = inw(HD64465_REG_NIMR); - nimr |= mask; - outw(nimr, HD64465_REG_NIMR); -} - -static void enable_hd64465_irq(unsigned int irq) -{ - unsigned short nimr; - unsigned short mask = 1 << (irq - HD64465_IRQ_BASE); - - pr_debug("enable_hd64465_irq(%d): mask=%x\n", irq, mask); - nimr = inw(HD64465_REG_NIMR); - nimr &= ~mask; - outw(nimr, HD64465_REG_NIMR); -} - -static void mask_and_ack_hd64465(unsigned int irq) -{ - disable_hd64465_irq(irq); -} - -static void end_hd64465_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_hd64465_irq(irq); -} - -static unsigned int startup_hd64465_irq(unsigned int irq) -{ - enable_hd64465_irq(irq); - return 0; -} - -static void shutdown_hd64465_irq(unsigned int irq) -{ - disable_hd64465_irq(irq); -} - -static struct hw_interrupt_type hd64465_irq_type = { - .typename = "HD64465-IRQ", - .startup = startup_hd64465_irq, - .shutdown = shutdown_hd64465_irq, - .enable = enable_hd64465_irq, - .disable = disable_hd64465_irq, - .ack = mask_and_ack_hd64465, - .end = end_hd64465_irq, -}; - -static irqreturn_t hd64465_interrupt(int irq, void *dev_id) -{ - printk(KERN_INFO - "HD64465: spurious interrupt, nirr: 0x%x nimr: 0x%x\n", - inw(HD64465_REG_NIRR), inw(HD64465_REG_NIMR)); - - return IRQ_NONE; -} - -/* - * Support for a secondary IRQ demux step. This is necessary - * because the HD64465 presents a very thin interface to the - * PCMCIA bus; a lot of features (such as remapping interrupts) - * normally done in hardware by other PCMCIA host bridges is - * instead done in software. - */ -static struct { - int (*func)(int, void *); - void *dev; -} hd64465_demux[HD64465_IRQ_NUM]; - -void hd64465_register_irq_demux(int irq, - int (*demux)(int irq, void *dev), void *dev) -{ - hd64465_demux[irq - HD64465_IRQ_BASE].func = demux; - hd64465_demux[irq - HD64465_IRQ_BASE].dev = dev; -} -EXPORT_SYMBOL(hd64465_register_irq_demux); - -void hd64465_unregister_irq_demux(int irq) -{ - hd64465_demux[irq - HD64465_IRQ_BASE].func = 0; -} -EXPORT_SYMBOL(hd64465_unregister_irq_demux); - -int hd64465_irq_demux(int irq) -{ - if (irq == CONFIG_HD64465_IRQ) { - unsigned short i, bit; - unsigned short nirr = inw(HD64465_REG_NIRR); - unsigned short nimr = inw(HD64465_REG_NIMR); - - pr_debug("hd64465_irq_demux, nirr=%04x, nimr=%04x\n", nirr, nimr); - nirr &= ~nimr; - for (bit = 1, i = 0 ; i < HD64465_IRQ_NUM ; bit <<= 1, i++) - if (nirr & bit) - break; - - if (i < HD64465_IRQ_NUM) { - irq = HD64465_IRQ_BASE + i; - if (hd64465_demux[i].func != 0) - irq = hd64465_demux[i].func(irq, hd64465_demux[i].dev); - } - } - return irq; -} - -static struct irqaction irq0 = { - .handler = hd64465_interrupt, - .flags = IRQF_DISABLED, - .mask = CPU_MASK_NONE, - .name = "HD64465", -}; - -static int __init setup_hd64465(void) -{ - int i; - unsigned short rev; - unsigned short smscr; - - if (!MACH_HD64465) - return 0; - - printk(KERN_INFO "HD64465 configured at 0x%x on irq %d(mapped into %d to %d)\n", - CONFIG_HD64465_IOBASE, - CONFIG_HD64465_IRQ, - HD64465_IRQ_BASE, - HD64465_IRQ_BASE+HD64465_IRQ_NUM-1); - - if (inw(HD64465_REG_SDID) != HD64465_SDID) { - printk(KERN_ERR "HD64465 device ID not found, check base address\n"); - } - - rev = inw(HD64465_REG_SRR); - printk(KERN_INFO "HD64465 hardware revision %d.%d\n", (rev >> 8) & 0xff, rev & 0xff); - - outw(0xffff, HD64465_REG_NIMR); /* mask all interrupts */ - - for (i = 0; i < HD64465_IRQ_NUM ; i++) { - irq_desc[HD64465_IRQ_BASE + i].chip = &hd64465_irq_type; - } - - setup_irq(CONFIG_HD64465_IRQ, &irq0); - - /* wake up the UART from STANDBY at this point */ - smscr = inw(HD64465_REG_SMSCR); - outw(smscr & (~HD64465_SMSCR_UARTST), HD64465_REG_SMSCR); - - /* remap IO ports for first ISA serial port to HD64465 UART */ - hd64465_port_map(0x3f8, 8, CONFIG_HD64465_IOBASE + 0x8000, 1); - - return 0; -} -module_init(setup_hd64465); |
