diff options
author | Paul Mackerras <paulus@samba.org> | 2007-09-14 01:24:25 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2007-09-14 01:24:25 +1000 |
commit | b2315372eac9cd9f622c32a93e323cf6f0f03462 (patch) | |
tree | 9e1faa7cdcddf5d90bec4fb9523742d4cce699a1 /arch/m32r/platforms/usrv | |
parent | 5326152fa182b0a16e4abf913ce403e3c7ab53b7 (diff) | |
parent | c87ce65868bbf9bbea9c3f112ff8315302daf8f2 (diff) |
Merge branch 'linux-2.6' into for-2.6.24
Diffstat (limited to 'arch/m32r/platforms/usrv')
-rw-r--r-- | arch/m32r/platforms/usrv/Makefile | 1 | ||||
-rw-r--r-- | arch/m32r/platforms/usrv/io.c | 225 | ||||
-rw-r--r-- | arch/m32r/platforms/usrv/setup.c | 248 |
3 files changed, 474 insertions, 0 deletions
diff --git a/arch/m32r/platforms/usrv/Makefile b/arch/m32r/platforms/usrv/Makefile new file mode 100644 index 00000000000..0de59084f21 --- /dev/null +++ b/arch/m32r/platforms/usrv/Makefile @@ -0,0 +1 @@ +obj-y := setup.o io.o diff --git a/arch/m32r/platforms/usrv/io.c b/arch/m32r/platforms/usrv/io.c new file mode 100644 index 00000000000..f5e50d37bad --- /dev/null +++ b/arch/m32r/platforms/usrv/io.c @@ -0,0 +1,225 @@ +/* + * linux/arch/m32r/platforms/usrv/io.c + * + * Typical I/O routines for uServer board. + * + * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata, + * Hitoshi Yamamoto, Takeo Takahashi + * + * 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 <asm/m32r.h> +#include <asm/page.h> +#include <asm/io.h> + +#include <linux/types.h> +#include "../../../../drivers/pcmcia/m32r_cfc.h" + +extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int); +extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int); +extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int); +extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int); +#define CFC_IOSTART CFC_IOPORT_BASE +#define CFC_IOEND (CFC_IOSTART + (M32R_PCC_MAPSIZE * M32R_MAX_PCC) - 1) + +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) +#define UART0_REGSTART 0x04c20000 +#define UART1_REGSTART 0x04c20100 +#define UART_IOMAP_SIZE 8 +#define UART0_IOSTART 0x3f8 +#define UART0_IOEND (UART0_IOSTART + UART_IOMAP_SIZE - 1) +#define UART1_IOSTART 0x2f8 +#define UART1_IOEND (UART1_IOSTART + UART_IOMAP_SIZE - 1) +#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */ + +#define PORT2ADDR(port) _port2addr(port) + +static inline void *_port2addr(unsigned long port) +{ +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) + if (port >= UART0_IOSTART && port <= UART0_IOEND) + port = ((port - UART0_IOSTART) << 1) + UART0_REGSTART; + else if (port >= UART1_IOSTART && port <= UART1_IOEND) + port = ((port - UART1_IOSTART) << 1) + UART1_REGSTART; +#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */ + return (void *)(port | (NONCACHE_OFFSET)); +} + +static inline void delay(void) +{ + __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory"); +} + +unsigned char _inb(unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) { + unsigned char b; + pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0); + return b; + } else + return *(volatile unsigned char *)PORT2ADDR(port); +} + +unsigned short _inw(unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) { + unsigned short w; + pcc_ioread_word(0, port, &w, sizeof(w), 1, 0); + return w; + } else + return *(volatile unsigned short *)PORT2ADDR(port); +} + +unsigned long _inl(unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) { + unsigned long l; + pcc_ioread_word(0, port, &l, sizeof(l), 1, 0); + return l; + } else + return *(volatile unsigned long *)PORT2ADDR(port); +} + +unsigned char _inb_p(unsigned long port) +{ + unsigned char v = _inb(port); + delay(); + return v; +} + +unsigned short _inw_p(unsigned long port) +{ + unsigned short v = _inw(port); + delay(); + return v; +} + +unsigned long _inl_p(unsigned long port) +{ + unsigned long v = _inl(port); + delay(); + return v; +} + +void _outb(unsigned char b, unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0); + else + *(volatile unsigned char *)PORT2ADDR(port) = b; +} + +void _outw(unsigned short w, unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0); + else + *(volatile unsigned short *)PORT2ADDR(port) = w; +} + +void _outl(unsigned long l, unsigned long port) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0); + else + *(volatile unsigned long *)PORT2ADDR(port) = l; +} + +void _outb_p(unsigned char b, unsigned long port) +{ + _outb(b, port); + delay(); +} + +void _outw_p(unsigned short w, unsigned long port) +{ + _outw(w, port); + delay(); +} + +void _outl_p(unsigned long l, unsigned long port) +{ + _outl(l, port); + delay(); +} + +void _insb(unsigned int port, void * addr, unsigned long count) +{ + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_ioread_byte(0, port, addr, sizeof(unsigned char), count, 1); + else { + unsigned char *buf = addr; + unsigned char *portp = PORT2ADDR(port); + while (count--) + *buf++ = *(volatile unsigned char *)portp; + } +} + +void _insw(unsigned int port, void * addr, unsigned long count) +{ + unsigned short *buf = addr; + unsigned short *portp; + + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_ioread_word(0, port, addr, sizeof(unsigned short), count, + 1); + else { + portp = PORT2ADDR(port); + while (count--) + *buf++ = *(volatile unsigned short *)portp; + } +} + +void _insl(unsigned int port, void * addr, unsigned long count) +{ + unsigned long *buf = addr; + unsigned long *portp; + + portp = PORT2ADDR(port); + while (count--) + *buf++ = *(volatile unsigned long *)portp; +} + +void _outsb(unsigned int port, const void * addr, unsigned long count) +{ + const unsigned char *buf = addr; + unsigned char *portp; + + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char), + count, 1); + else { + portp = PORT2ADDR(port); + while (count--) + *(volatile unsigned char *)portp = *buf++; + } +} + +void _outsw(unsigned int port, const void * addr, unsigned long count) +{ + const unsigned short *buf = addr; + unsigned short *portp; + + if (port >= CFC_IOSTART && port <= CFC_IOEND) + pcc_iowrite_word(0, port, (void *)addr, sizeof(unsigned short), + count, 1); + else { + portp = PORT2ADDR(port); + while (count--) + *(volatile unsigned short *)portp = *buf++; + } +} + +void _outsl(unsigned int port, const void * addr, unsigned long count) +{ + const unsigned long *buf = addr; + unsigned char *portp; + + portp = PORT2ADDR(port); + while (count--) + *(volatile unsigned long *)portp = *buf++; +} diff --git a/arch/m32r/platforms/usrv/setup.c b/arch/m32r/platforms/usrv/setup.c new file mode 100644 index 00000000000..89588d649eb --- /dev/null +++ b/arch/m32r/platforms/usrv/setup.c @@ -0,0 +1,248 @@ +/* + * linux/arch/m32r/platforms/usrv/setup.c + * + * Setup routines for MITSUBISHI uServer + * + * Copyright (c) 2001, 2002, 2003 Hiroyuki Kondo, Hirokazu Takata, + * Hitoshi Yamamoto + */ + +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/init.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[M32700UT_NUM_CPU_IRQ]; + +static void disable_mappi_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_mappi_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_mappi(unsigned int irq) +{ + disable_mappi_irq(irq); +} + +static void end_mappi_irq(unsigned int irq) +{ + enable_mappi_irq(irq); +} + +static unsigned int startup_mappi_irq(unsigned int irq) +{ + enable_mappi_irq(irq); + return 0; +} + +static void shutdown_mappi_irq(unsigned int irq) +{ + unsigned long port; + + port = irq2port(irq); + outl(M32R_ICUCR_ILEVEL7, port); +} + +static struct hw_interrupt_type mappi_irq_type = +{ + .typename = "M32700-IRQ", + .startup = startup_mappi_irq, + .shutdown = shutdown_mappi_irq, + .enable = enable_mappi_irq, + .disable = disable_mappi_irq, + .ack = mask_and_ack_mappi, + .end = end_mappi_irq +}; + +/* + * Interrupt Control Unit of PLD on M32700UT (Level 2) + */ +#define irq2pldirq(x) ((x) - M32700UT_PLD_IRQ_BASE) +#define pldirq2port(x) (unsigned long)((int)PLD_ICUCR1 + \ + (((x) - 1) * sizeof(unsigned short))) + +typedef struct { + unsigned short icucr; /* ICU Control Register */ +} pld_icu_data_t; + +static pld_icu_data_t pld_icu_data[M32700UT_NUM_PLD_IRQ]; + +static void disable_m32700ut_pld_irq(unsigned int irq) +{ + unsigned long port, data; + unsigned int pldirq; + + pldirq = irq2pldirq(irq); + port = pldirq2port(pldirq); + data = pld_icu_data[pldirq].icucr|PLD_ICUCR_ILEVEL7; + outw(data, port); +} + +static void enable_m32700ut_pld_irq(unsigned int irq) +{ + unsigned long port, data; + unsigned int pldirq; + + pldirq = irq2pldirq(irq); + port = pldirq2port(pldirq); + data = pld_icu_data[pldirq].icucr|PLD_ICUCR_IEN|PLD_ICUCR_ILEVEL6; + outw(data, port); +} + +static void mask_and_ack_m32700ut_pld(unsigned int irq) +{ + disable_m32700ut_pld_irq(irq); +} + +static void end_m32700ut_pld_irq(unsigned int irq) +{ + enable_m32700ut_pld_irq(irq); + end_mappi_irq(M32R_IRQ_INT1); +} + +static unsigned int startup_m32700ut_pld_irq(unsigned int irq) +{ + enable_m32700ut_pld_irq(irq); + return 0; +} + +static void shutdown_m32700ut_pld_irq(unsigned int irq) +{ + unsigned long port; + unsigned int pldirq; + + pldirq = irq2pldirq(irq); + port = pldirq2port(pldirq); + outw(PLD_ICUCR_ILEVEL7, port); +} + +static struct hw_interrupt_type m32700ut_pld_irq_type = +{ + .typename = "USRV-PLD-IRQ", + .startup = startup_m32700ut_pld_irq, + .shutdown = shutdown_m32700ut_pld_irq, + .enable = enable_m32700ut_pld_irq, + .disable = disable_m32700ut_pld_irq, + .ack = mask_and_ack_m32700ut_pld, + .end = end_m32700ut_pld_irq +}; + +void __init init_IRQ(void) +{ + static int once = 0; + int i; + + if (once) + return; + else + once++; + + /* MFT2 : system timer */ + irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_MFT2].chip = &mappi_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_mappi_irq(M32R_IRQ_MFT2); + +#if defined(CONFIG_SERIAL_M32R_SIO) + /* SIO0_R : uart receive data */ + irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_SIO0_R].chip = &mappi_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 = 0; + disable_mappi_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].chip = &mappi_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 = 0; + disable_mappi_irq(M32R_IRQ_SIO0_S); + + /* SIO1_R : uart receive data */ + irq_desc[M32R_IRQ_SIO1_R].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_SIO1_R].chip = &mappi_irq_type; + irq_desc[M32R_IRQ_SIO1_R].action = 0; + irq_desc[M32R_IRQ_SIO1_R].depth = 1; + icu_data[M32R_IRQ_SIO1_R].icucr = 0; + disable_mappi_irq(M32R_IRQ_SIO1_R); + + /* SIO1_S : uart send data */ + irq_desc[M32R_IRQ_SIO1_S].status = IRQ_DISABLED; + irq_desc[M32R_IRQ_SIO1_S].chip = &mappi_irq_type; + irq_desc[M32R_IRQ_SIO1_S].action = 0; + irq_desc[M32R_IRQ_SIO1_S].depth = 1; + icu_data[M32R_IRQ_SIO1_S].icucr = 0; + disable_mappi_irq(M32R_IRQ_SIO1_S); +#endif /* CONFIG_SERIAL_M32R_SIO */ + + /* INT#67-#71: CFC#0 IREQ on PLD */ + for (i = 0 ; i < CONFIG_M32R_CFC_NUM ; i++ ) { + irq_desc[PLD_IRQ_CF0 + i].status = IRQ_DISABLED; + irq_desc[PLD_IRQ_CF0 + i].chip = &m32700ut_pld_irq_type; + irq_desc[PLD_IRQ_CF0 + i].action = 0; + irq_desc[PLD_IRQ_CF0 + i].depth = 1; /* disable nested irq */ + pld_icu_data[irq2pldirq(PLD_IRQ_CF0 + i)].icucr + = PLD_ICUCR_ISMOD01; /* 'L' level sense */ + disable_m32700ut_pld_irq(PLD_IRQ_CF0 + i); + } + +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) + /* INT#76: 16552D#0 IREQ on PLD */ + irq_desc[PLD_IRQ_UART0].status = IRQ_DISABLED; + irq_desc[PLD_IRQ_UART0].chip = &m32700ut_pld_irq_type; + irq_desc[PLD_IRQ_UART0].action = 0; + irq_desc[PLD_IRQ_UART0].depth = 1; /* disable nested irq */ + pld_icu_data[irq2pldirq(PLD_IRQ_UART0)].icucr + = PLD_ICUCR_ISMOD03; /* 'H' level sense */ + disable_m32700ut_pld_irq(PLD_IRQ_UART0); + + /* INT#77: 16552D#1 IREQ on PLD */ + irq_desc[PLD_IRQ_UART1].status = IRQ_DISABLED; + irq_desc[PLD_IRQ_UART1].chip = &m32700ut_pld_irq_type; + irq_desc[PLD_IRQ_UART1].action = 0; + irq_desc[PLD_IRQ_UART1].depth = 1; /* disable nested irq */ + pld_icu_data[irq2pldirq(PLD_IRQ_UART1)].icucr + = PLD_ICUCR_ISMOD03; /* 'H' level sense */ + disable_m32700ut_pld_irq(PLD_IRQ_UART1); +#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */ + +#if defined(CONFIG_IDC_AK4524) || defined(CONFIG_IDC_AK4524_MODULE) + /* INT#80: AK4524 IREQ on PLD */ + irq_desc[PLD_IRQ_SNDINT].status = IRQ_DISABLED; + irq_desc[PLD_IRQ_SNDINT].chip = &m32700ut_pld_irq_type; + irq_desc[PLD_IRQ_SNDINT].action = 0; + irq_desc[PLD_IRQ_SNDINT].depth = 1; /* disable nested irq */ + pld_icu_data[irq2pldirq(PLD_IRQ_SNDINT)].icucr + = PLD_ICUCR_ISMOD01; /* 'L' level sense */ + disable_m32700ut_pld_irq(PLD_IRQ_SNDINT); +#endif /* CONFIG_IDC_AK4524 || CONFIG_IDC_AK4524_MODULE */ + + /* + * INT1# is used for UART, MMC, CF Controller in FPGA. + * We enable it here. + */ + icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD11; + enable_mappi_irq(M32R_IRQ_INT1); +} |