diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-10-28 20:07:44 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-28 20:07:44 +0900 |
commit | 3eeebf17f31c583f83e081b17b3076477cb96886 (patch) | |
tree | b1e70bb1b0d9959179d9d8967543fc060a59aff5 /arch/sh/cchips/hd6446x | |
parent | 5ff0594e2f6fb3242a1a2a4794286244e95afab1 (diff) | |
download | linux-3eeebf17f31c583f83e081b17b3076477cb96886.tar.bz2 |
sh: Kill off long-dead HD64465 cchip support.
This code has been dead for many years. The last update it received
was in 2003 in order to update it for the driver model changes, though
it had already been in disarray and unused before that point. The only
boards that ever used this chip have not had users in many years either,
so it is finally safe to just kill it off and move on with life.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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 f7de4076e242..9682e3ab668f 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 f66edcb52c5b..000000000000 --- 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 43431855ec86..000000000000 --- 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 58704d066ae2..000000000000 --- 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 9b8820c36701..000000000000 --- 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); |