diff options
Diffstat (limited to 'arch/sh/boards/mach-systemh')
| -rw-r--r-- | arch/sh/boards/mach-systemh/Makefile | 13 | ||||
| -rw-r--r-- | arch/sh/boards/mach-systemh/io.c | 174 | ||||
| -rw-r--r-- | arch/sh/boards/mach-systemh/irq.c | 101 | ||||
| -rw-r--r-- | arch/sh/boards/mach-systemh/setup.c | 57 |
4 files changed, 345 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-systemh/Makefile b/arch/sh/boards/mach-systemh/Makefile new file mode 100644 index 00000000000..2cc6a23d9d3 --- /dev/null +++ b/arch/sh/boards/mach-systemh/Makefile @@ -0,0 +1,13 @@ +# +# Makefile for the SystemH specific parts of the kernel +# + +obj-y := setup.o irq.o io.o + +# XXX: This wants to be consolidated in arch/sh/drivers/pci, and more +# importantly, with the generic sh7751_pcic_init() code. For now, we'll +# just abuse the hell out of kbuild, because we can.. + +obj-$(CONFIG_PCI) += pci.o +pci-y := ../../se/7751/pci.o + diff --git a/arch/sh/boards/mach-systemh/io.c b/arch/sh/boards/mach-systemh/io.c new file mode 100644 index 00000000000..1b767e1a142 --- /dev/null +++ b/arch/sh/boards/mach-systemh/io.c @@ -0,0 +1,174 @@ +/* + * linux/arch/sh/boards/renesas/systemh/io.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for Hitachi 7751 Systemh. + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <asm/systemh7751.h> +#include <asm/addrspace.h> +#include <asm/io.h> + +#define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area + of smc lan chip*/ +static inline volatile __u16 * +port2adr(unsigned int port) +{ + if (port >= 0x2000) + return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); + maybebadio((unsigned long)port); + return (volatile __u16*)port; +} + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ +unsigned char sh7751systemh_inb(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned char *)port; + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); + else if (port <= 0x3F1) + return *(volatile unsigned char *)ETHER_IOMAP(port); + else + return (*port2adr(port))&0xff; +} + +unsigned char sh7751systemh_inb_p(unsigned long port) +{ + unsigned char v; + + if (PXSEG(port)) + v = *(volatile unsigned char *)port; + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); + else if (port <= 0x3F1) + v = *(volatile unsigned char *)ETHER_IOMAP(port); + else + v = (*port2adr(port))&0xff; + ctrl_delay(); + return v; +} + +unsigned short sh7751systemh_inw(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned short *)port; + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); + else if (port >= 0x2000) + return *port2adr(port); + else if (port <= 0x3F1) + return *(volatile unsigned int *)ETHER_IOMAP(port); + else + maybebadio(port); + return 0; +} + +unsigned int sh7751systemh_inl(unsigned long port) +{ + if (PXSEG(port)) + return *(volatile unsigned long *)port; + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); + else if (port >= 0x2000) + return *port2adr(port); + else if (port <= 0x3F1) + return *(volatile unsigned int *)ETHER_IOMAP(port); + else + maybebadio(port); + return 0; +} + +void sh7751systemh_outb(unsigned char value, unsigned long port) +{ + + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; + else if (port <= 0x3F1) + *(volatile unsigned char *)ETHER_IOMAP(port) = value; + else + *(port2adr(port)) = value; +} + +void sh7751systemh_outb_p(unsigned char value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned char *)port = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; + else if (port <= 0x3F1) + *(volatile unsigned char *)ETHER_IOMAP(port) = value; + else + *(port2adr(port)) = value; + ctrl_delay(); +} + +void sh7751systemh_outw(unsigned short value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned short *)port = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; + else if (port >= 0x2000) + *port2adr(port) = value; + else if (port <= 0x3F1) + *(volatile unsigned short *)ETHER_IOMAP(port) = value; + else + maybebadio(port); +} + +void sh7751systemh_outl(unsigned int value, unsigned long port) +{ + if (PXSEG(port)) + *(volatile unsigned long *)port = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; + else + maybebadio(port); +} + +void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count) +{ + unsigned char *p = addr; + while (count--) *p++ = sh7751systemh_inb(port); +} + +void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count) +{ + unsigned short *p = addr; + while (count--) *p++ = sh7751systemh_inw(port); +} + +void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count) +{ + maybebadio(port); +} + +void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count) +{ + unsigned char *p = (unsigned char*)addr; + while (count--) sh7751systemh_outb(*p++, port); +} + +void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count) +{ + unsigned short *p = (unsigned short*)addr; + while (count--) sh7751systemh_outw(*p++, port); +} + +void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count) +{ + maybebadio(port); +} diff --git a/arch/sh/boards/mach-systemh/irq.c b/arch/sh/boards/mach-systemh/irq.c new file mode 100644 index 00000000000..601c9c8cdbe --- /dev/null +++ b/arch/sh/boards/mach-systemh/irq.c @@ -0,0 +1,101 @@ +/* + * linux/arch/sh/boards/renesas/systemh/irq.c + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Hitachi SystemH Support. + * + * Modified for 7751 SystemH by + * Jonathan Short. + */ + +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/interrupt.h> + +#include <asm/io.h> +#include <asm/systemh7751.h> +#include <asm/smc37c93x.h> + +/* address of external interrupt mask register + * address must be set prior to use these (maybe in init_XXX_irq()) + * XXX : is it better to use .config than specifying it in code? */ +static unsigned long *systemh_irq_mask_register = (unsigned long *)0xB3F10004; +static unsigned long *systemh_irq_request_register = (unsigned long *)0xB3F10000; + +/* forward declaration */ +static unsigned int startup_systemh_irq(unsigned int irq); +static void shutdown_systemh_irq(unsigned int irq); +static void enable_systemh_irq(unsigned int irq); +static void disable_systemh_irq(unsigned int irq); +static void mask_and_ack_systemh(unsigned int); +static void end_systemh_irq(unsigned int irq); + +/* hw_interrupt_type */ +static struct hw_interrupt_type systemh_irq_type = { + .typename = " SystemH Register", + .startup = startup_systemh_irq, + .shutdown = shutdown_systemh_irq, + .enable = enable_systemh_irq, + .disable = disable_systemh_irq, + .ack = mask_and_ack_systemh, + .end = end_systemh_irq +}; + +static unsigned int startup_systemh_irq(unsigned int irq) +{ + enable_systemh_irq(irq); + return 0; /* never anything pending */ +} + +static void shutdown_systemh_irq(unsigned int irq) +{ + disable_systemh_irq(irq); +} + +static void disable_systemh_irq(unsigned int irq) +{ + if (systemh_irq_mask_register) { + unsigned long val, mask = 0x01 << 1; + + /* Clear the "irq"th bit in the mask and set it in the request */ + val = ctrl_inl((unsigned long)systemh_irq_mask_register); + val &= ~mask; + ctrl_outl(val, (unsigned long)systemh_irq_mask_register); + + val = ctrl_inl((unsigned long)systemh_irq_request_register); + val |= mask; + ctrl_outl(val, (unsigned long)systemh_irq_request_register); + } +} + +static void enable_systemh_irq(unsigned int irq) +{ + if (systemh_irq_mask_register) { + unsigned long val, mask = 0x01 << 1; + + /* Set "irq"th bit in the mask register */ + val = ctrl_inl((unsigned long)systemh_irq_mask_register); + val |= mask; + ctrl_outl(val, (unsigned long)systemh_irq_mask_register); + } +} + +static void mask_and_ack_systemh(unsigned int irq) +{ + disable_systemh_irq(irq); +} + +static void end_systemh_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) + enable_systemh_irq(irq); +} + +void make_systemh_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].chip = &systemh_irq_type; + disable_systemh_irq(irq); +} + diff --git a/arch/sh/boards/mach-systemh/setup.c b/arch/sh/boards/mach-systemh/setup.c new file mode 100644 index 00000000000..ee78af84277 --- /dev/null +++ b/arch/sh/boards/mach-systemh/setup.c @@ -0,0 +1,57 @@ +/* + * linux/arch/sh/boards/renesas/systemh/setup.c + * + * Copyright (C) 2000 Kazumoto Kojima + * Copyright (C) 2003 Paul Mundt + * + * Hitachi SystemH Support. + * + * Modified for 7751 SystemH by Jonathan Short. + * + * Rewritten for 2.6 by Paul Mundt. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <asm/machvec.h> +#include <asm/systemh7751.h> + +extern void make_systemh_irq(unsigned int irq); + +/* + * Initialize IRQ setting + */ +static void __init sh7751systemh_init_irq(void) +{ + make_systemh_irq(0xb); /* Ethernet interrupt */ +} + +static struct sh_machine_vector mv_7751systemh __initmv = { + .mv_name = "7751 SystemH", + .mv_nr_irqs = 72, + + .mv_inb = sh7751systemh_inb, + .mv_inw = sh7751systemh_inw, + .mv_inl = sh7751systemh_inl, + .mv_outb = sh7751systemh_outb, + .mv_outw = sh7751systemh_outw, + .mv_outl = sh7751systemh_outl, + + .mv_inb_p = sh7751systemh_inb_p, + .mv_inw_p = sh7751systemh_inw, + .mv_inl_p = sh7751systemh_inl, + .mv_outb_p = sh7751systemh_outb_p, + .mv_outw_p = sh7751systemh_outw, + .mv_outl_p = sh7751systemh_outl, + + .mv_insb = sh7751systemh_insb, + .mv_insw = sh7751systemh_insw, + .mv_insl = sh7751systemh_insl, + .mv_outsb = sh7751systemh_outsb, + .mv_outsw = sh7751systemh_outsw, + .mv_outsl = sh7751systemh_outsl, + + .mv_init_irq = sh7751systemh_init_irq, +}; |