diff options
Diffstat (limited to 'arch/sh/boards/mach-se/7206')
| -rw-r--r-- | arch/sh/boards/mach-se/7206/Makefile | 5 | ||||
| -rw-r--r-- | arch/sh/boards/mach-se/7206/io.c | 104 | ||||
| -rw-r--r-- | arch/sh/boards/mach-se/7206/irq.c | 146 | ||||
| -rw-r--r-- | arch/sh/boards/mach-se/7206/setup.c | 108 |
4 files changed, 363 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7206/Makefile b/arch/sh/boards/mach-se/7206/Makefile new file mode 100644 index 000000000000..63e7ed699f39 --- /dev/null +++ b/arch/sh/boards/mach-se/7206/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the 7206 SolutionEngine specific parts of the kernel +# + +obj-y := setup.o io.o irq.o diff --git a/arch/sh/boards/mach-se/7206/io.c b/arch/sh/boards/mach-se/7206/io.c new file mode 100644 index 000000000000..9c3a33210d61 --- /dev/null +++ b/arch/sh/boards/mach-se/7206/io.c @@ -0,0 +1,104 @@ +/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $ + * + * linux/arch/sh/boards/se/7206/io.c + * + * Copyright (C) 2006 Yoshinori Sato + * + * I/O routine for Hitachi 7206 SolutionEngine. + * + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <asm/io.h> +#include <mach-se/mach/se7206.h> + + +static inline void delay(void) +{ + ctrl_inw(0x20000000); /* P2 ROM Area */ +} + +/* MS7750 requires special versions of in*, out* routines, since + PC-like io ports are located at upper half byte of 16-bit word which + can be accessed only with 16-bit wide. */ + +static inline volatile __u16 * +port2adr(unsigned int port) +{ + if (port >= 0x2000 && port < 0x2020) + return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); + else if (port >= 0x300 && port < 0x310) + return (volatile __u16 *) (PA_SMSC + (port - 0x300)); + + return (volatile __u16 *)port; +} + +unsigned char se7206_inb(unsigned long port) +{ + return (*port2adr(port)) & 0xff; +} + +unsigned char se7206_inb_p(unsigned long port) +{ + unsigned long v; + + v = (*port2adr(port)) & 0xff; + delay(); + return v; +} + +unsigned short se7206_inw(unsigned long port) +{ + return *port2adr(port);; +} + +void se7206_outb(unsigned char value, unsigned long port) +{ + *(port2adr(port)) = value; +} + +void se7206_outb_p(unsigned char value, unsigned long port) +{ + *(port2adr(port)) = value; + delay(); +} + +void se7206_outw(unsigned short value, unsigned long port) +{ + *port2adr(port) = value; +} + +void se7206_insb(unsigned long port, void *addr, unsigned long count) +{ + volatile __u16 *p = port2adr(port); + __u8 *ap = addr; + + while (count--) + *ap++ = *p; +} + +void se7206_insw(unsigned long port, void *addr, unsigned long count) +{ + volatile __u16 *p = port2adr(port); + __u16 *ap = addr; + while (count--) + *ap++ = *p; +} + +void se7206_outsb(unsigned long port, const void *addr, unsigned long count) +{ + volatile __u16 *p = port2adr(port); + const __u8 *ap = addr; + + while (count--) + *p = *ap++; +} + +void se7206_outsw(unsigned long port, const void *addr, unsigned long count) +{ + volatile __u16 *p = port2adr(port); + const __u16 *ap = addr; + while (count--) + *p = *ap++; +} diff --git a/arch/sh/boards/mach-se/7206/irq.c b/arch/sh/boards/mach-se/7206/irq.c new file mode 100644 index 000000000000..aef7f052851a --- /dev/null +++ b/arch/sh/boards/mach-se/7206/irq.c @@ -0,0 +1,146 @@ +/* + * linux/arch/sh/boards/se/7206/irq.c + * + * Copyright (C) 2005,2006 Yoshinori Sato + * + * Hitachi SolutionEngine Support. + * + */ +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/interrupt.h> +#include <mach-se/mach/se7206.h> + +#define INTSTS0 0x31800000 +#define INTSTS1 0x31800002 +#define INTMSK0 0x31800004 +#define INTMSK1 0x31800006 +#define INTSEL 0x31800008 + +#define IRQ0_IRQ 64 +#define IRQ1_IRQ 65 +#define IRQ3_IRQ 67 + +#define INTC_IPR01 0xfffe0818 +#define INTC_ICR1 0xfffe0802 + +static void disable_se7206_irq(unsigned int irq) +{ + unsigned short val; + unsigned short mask = 0xffff ^ (0x0f << 4 * (3 - (IRQ0_IRQ - irq))); + unsigned short msk0,msk1; + + /* Set the priority in IPR to 0 */ + val = ctrl_inw(INTC_IPR01); + val &= mask; + ctrl_outw(val, INTC_IPR01); + /* FPGA mask set */ + msk0 = ctrl_inw(INTMSK0); + msk1 = ctrl_inw(INTMSK1); + + switch (irq) { + case IRQ0_IRQ: + msk0 |= 0x0010; + break; + case IRQ1_IRQ: + msk0 |= 0x000f; + break; + case IRQ3_IRQ: + msk0 |= 0x0f00; + msk1 |= 0x00ff; + break; + } + ctrl_outw(msk0, INTMSK0); + ctrl_outw(msk1, INTMSK1); +} + +static void enable_se7206_irq(unsigned int irq) +{ + unsigned short val; + unsigned short value = (0x0001 << 4 * (3 - (IRQ0_IRQ - irq))); + unsigned short msk0,msk1; + + /* Set priority in IPR back to original value */ + val = ctrl_inw(INTC_IPR01); + val |= value; + ctrl_outw(val, INTC_IPR01); + + /* FPGA mask reset */ + msk0 = ctrl_inw(INTMSK0); + msk1 = ctrl_inw(INTMSK1); + + switch (irq) { + case IRQ0_IRQ: + msk0 &= ~0x0010; + break; + case IRQ1_IRQ: + msk0 &= ~0x000f; + break; + case IRQ3_IRQ: + msk0 &= ~0x0f00; + msk1 &= ~0x00ff; + break; + } + ctrl_outw(msk0, INTMSK0); + ctrl_outw(msk1, INTMSK1); +} + +static void eoi_se7206_irq(unsigned int irq) +{ + unsigned short sts0,sts1; + + if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) + enable_se7206_irq(irq); + /* FPGA isr clear */ + sts0 = ctrl_inw(INTSTS0); + sts1 = ctrl_inw(INTSTS1); + + switch (irq) { + case IRQ0_IRQ: + sts0 &= ~0x0010; + break; + case IRQ1_IRQ: + sts0 &= ~0x000f; + break; + case IRQ3_IRQ: + sts0 &= ~0x0f00; + sts1 &= ~0x00ff; + break; + } + ctrl_outw(sts0, INTSTS0); + ctrl_outw(sts1, INTSTS1); +} + +static struct irq_chip se7206_irq_chip __read_mostly = { + .name = "SE7206-FPGA", + .mask = disable_se7206_irq, + .unmask = enable_se7206_irq, + .mask_ack = disable_se7206_irq, + .eoi = eoi_se7206_irq, +}; + +static void make_se7206_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + set_irq_chip_and_handler_name(irq, &se7206_irq_chip, + handle_level_irq, "level"); + disable_se7206_irq(irq); +} + +/* + * Initialize IRQ setting + */ +void __init init_se7206_IRQ(void) +{ + make_se7206_irq(IRQ0_IRQ); /* SMC91C111 */ + make_se7206_irq(IRQ1_IRQ); /* ATA */ + make_se7206_irq(IRQ3_IRQ); /* SLOT / PCM */ + ctrl_outw(inw(INTC_ICR1) | 0x000b ,INTC_ICR1 ) ; /* ICR1 */ + + /* FPGA System register setup*/ + ctrl_outw(0x0000,INTSTS0); /* Clear INTSTS0 */ + ctrl_outw(0x0000,INTSTS1); /* Clear INTSTS1 */ + /* IRQ0=LAN, IRQ1=ATA, IRQ3=SLT,PCM */ + ctrl_outw(0x0001,INTSEL); +} diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c new file mode 100644 index 000000000000..f5466384972e --- /dev/null +++ b/arch/sh/boards/mach-se/7206/setup.c @@ -0,0 +1,108 @@ +/* + * + * linux/arch/sh/boards/se/7206/setup.c + * + * Copyright (C) 2006 Yoshinori Sato + * Copyright (C) 2007 - 2008 Paul Mundt + * + * Hitachi 7206 SolutionEngine Support. + */ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/smc91x.h> +#include <mach-se/mach/se7206.h> +#include <asm/io.h> +#include <asm/machvec.h> +#include <asm/heartbeat.h> + +static struct resource smc91x_resources[] = { + [0] = { + .name = "smc91x-regs", + .start = PA_SMSC + 0x300, + .end = PA_SMSC + 0x300 + 0x020 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 64, + .end = 64, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct smc91x_platdata smc91x_info = { + .flags = SMC91X_USE_16BIT, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = -1, + .dev = { + .dma_mask = NULL, + .coherent_dma_mask = 0xffffffff, + .platform_data = &smc91x_info, + }, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 }; + +static struct heartbeat_data heartbeat_data = { + .bit_pos = heartbeat_bit_pos, + .nr_bits = ARRAY_SIZE(heartbeat_bit_pos), + .regsize = 32, +}; + +static struct resource heartbeat_resources[] = { + [0] = { + .start = PA_LED, + .end = PA_LED, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device heartbeat_device = { + .name = "heartbeat", + .id = -1, + .dev = { + .platform_data = &heartbeat_data, + }, + .num_resources = ARRAY_SIZE(heartbeat_resources), + .resource = heartbeat_resources, +}; + +static struct platform_device *se7206_devices[] __initdata = { + &smc91x_device, + &heartbeat_device, +}; + +static int __init se7206_devices_setup(void) +{ + return platform_add_devices(se7206_devices, ARRAY_SIZE(se7206_devices)); +} +__initcall(se7206_devices_setup); + +/* + * The Machine Vector + */ + +static struct sh_machine_vector mv_se __initmv = { + .mv_name = "SolutionEngine", + .mv_nr_irqs = 256, + .mv_inb = se7206_inb, + .mv_inw = se7206_inw, + .mv_outb = se7206_outb, + .mv_outw = se7206_outw, + + .mv_inb_p = se7206_inb_p, + .mv_inw_p = se7206_inw, + .mv_outb_p = se7206_outb_p, + .mv_outw_p = se7206_outw, + + .mv_insb = se7206_insb, + .mv_insw = se7206_insw, + .mv_outsb = se7206_outsb, + .mv_outsw = se7206_outsw, + + .mv_init_irq = init_se7206_IRQ, +}; |
