diff options
Diffstat (limited to 'arch/m32r/kernel/setup_m32104ut.c')
| -rw-r--r-- | arch/m32r/kernel/setup_m32104ut.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/arch/m32r/kernel/setup_m32104ut.c b/arch/m32r/kernel/setup_m32104ut.c new file mode 100644 index 000000000000..6328e1357a80 --- /dev/null +++ b/arch/m32r/kernel/setup_m32104ut.c @@ -0,0 +1,156 @@ +/* + * linux/arch/m32r/kernel/setup_m32104ut.c + * + * Setup routines for M32104UT Board + * + * Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata, + * Hitoshi Yamamoto, Mamoru Sakugawa, + * Naoto Sugai, Hayato Fujiwara + */ + +#include <linux/config.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> + +#include <asm/system.h> +#include <asm/m32r.h> +#include <asm/io.h> + +#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long))) + +icu_data_t icu_data[NR_IRQS]; + +static void disable_m32104ut_irq(unsigned int irq) +{ + unsigned long port, data; + + port = irq2port(irq); + data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7; + outl(data, port); +} + +static void enable_m32104ut_irq(unsigned int irq) +{ + unsigned long port, data; + + port = irq2port(irq); + data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6; + outl(data, port); +} + +static void mask_and_ack_m32104ut(unsigned int irq) +{ + disable_m32104ut_irq(irq); +} + +static void end_m32104ut_irq(unsigned int irq) +{ + enable_m32104ut_irq(irq); +} + +static unsigned int startup_m32104ut_irq(unsigned int irq) +{ + enable_m32104ut_irq(irq); + return (0); +} + +static void shutdown_m32104ut_irq(unsigned int irq) +{ + unsigned long port; + + port = irq2port(irq); + outl(M32R_ICUCR_ILEVEL7, port); +} + +static struct hw_interrupt_type m32104ut_irq_type = +{ + .typename = "M32104UT-IRQ", + .startup = startup_m32104ut_irq, + .shutdown = shutdown_m32104ut_irq, + .enable = enable_m32104ut_irq, + .disable = disable_m32104ut_irq, + .ack = mask_and_ack_m32104ut, + .end = end_m32104ut_irq +}; + +void __init init_IRQ(void) +{ + static int once = 0; + + if (once) + return; + else + once++; + +#if defined(CONFIG_SMC91X) + /* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/ + irq_desc[M32R_IRQ_INT0].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_INT0].handler = &m32104ut_irq_type; + irq_desc[M32R_IRQ_INT0].action = 0; + irq_desc[M32R_IRQ_INT0].depth = 1; + icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11; /* "H" level sense */ + disable_m32104ut_irq(M32R_IRQ_INT0); +#endif /* CONFIG_SMC91X */ + + /* MFT2 : system timer */ + irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_MFT2].handler = &m32104ut_irq_type; + irq_desc[M32R_IRQ_MFT2].action = 0; + irq_desc[M32R_IRQ_MFT2].depth = 1; + icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; + disable_m32104ut_irq(M32R_IRQ_MFT2); + +#ifdef CONFIG_SERIAL_M32R_SIO + /* SIO0_R : uart receive data */ + irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_SIO0_R].handler = &m32104ut_irq_type; + irq_desc[M32R_IRQ_SIO0_R].action = 0; + irq_desc[M32R_IRQ_SIO0_R].depth = 1; + icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN; + disable_m32104ut_irq(M32R_IRQ_SIO0_R); + + /* SIO0_S : uart send data */ + irq_desc[M32R_IRQ_SIO0_S].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_SIO0_S].handler = &m32104ut_irq_type; + irq_desc[M32R_IRQ_SIO0_S].action = 0; + irq_desc[M32R_IRQ_SIO0_S].depth = 1; + icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN; + disable_m32104ut_irq(M32R_IRQ_SIO0_S); +#endif /* CONFIG_SERIAL_M32R_SIO */ +} + +#if defined(CONFIG_SMC91X) + +#define LAN_IOSTART 0x300 +#define LAN_IOEND 0x320 +static struct resource smc91x_resources[] = { + [0] = { + .start = (LAN_IOSTART), + .end = (LAN_IOEND), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = M32R_IRQ_INT0, + .end = M32R_IRQ_INT0, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +static int __init platform_init(void) +{ +#if defined(CONFIG_SMC91X) + platform_device_register(&smc91x_device); +#endif + return 0; +} +arch_initcall(platform_init); |