diff options
Diffstat (limited to 'kernel/arch/mips/lasat')
22 files changed, 2216 insertions, 0 deletions
diff --git a/kernel/arch/mips/lasat/Kconfig b/kernel/arch/mips/lasat/Kconfig new file mode 100644 index 000000000..8776d0a34 --- /dev/null +++ b/kernel/arch/mips/lasat/Kconfig @@ -0,0 +1,15 @@ +config PICVUE + tristate "PICVUE LCD display driver" + depends on LASAT + +config PICVUE_PROC + tristate "PICVUE LCD display driver /proc interface" + depends on PICVUE && PROC_FS + +config DS1603 + bool "DS1603 RTC driver" + depends on LASAT + +config LASAT_SYSCTL + bool "LASAT sysctl interface" + depends on LASAT diff --git a/kernel/arch/mips/lasat/Makefile b/kernel/arch/mips/lasat/Makefile new file mode 100644 index 000000000..869bd3b37 --- /dev/null +++ b/kernel/arch/mips/lasat/Makefile @@ -0,0 +1,14 @@ +# +# Makefile for the LASAT specific kernel interface routines under Linux. +# + +obj-y += reset.o setup.o prom.o lasat_board.o \ + at93c.o interrupt.o serial.o + +obj-$(CONFIG_LASAT_SYSCTL) += sysctl.o +obj-$(CONFIG_DS1603) += ds1603.o +obj-$(CONFIG_PICVUE) += picvue.o +obj-$(CONFIG_PICVUE_PROC) += picvue_proc.o + +clean: + make -C image clean diff --git a/kernel/arch/mips/lasat/Platform b/kernel/arch/mips/lasat/Platform new file mode 100644 index 000000000..760252828 --- /dev/null +++ b/kernel/arch/mips/lasat/Platform @@ -0,0 +1,7 @@ +# +# LASAT platforms +# +platform-$(CONFIG_LASAT) += lasat/ +cflags-$(CONFIG_LASAT) += \ + -I$(srctree)/arch/mips/include/asm/mach-lasat +load-$(CONFIG_LASAT) += 0xffffffff80000000 diff --git a/kernel/arch/mips/lasat/at93c.c b/kernel/arch/mips/lasat/at93c.c new file mode 100644 index 000000000..942f32b91 --- /dev/null +++ b/kernel/arch/mips/lasat/at93c.c @@ -0,0 +1,148 @@ +/* + * Atmel AT93C46 serial eeprom driver + * + * Brian Murphy <brian.murphy@eicon.com> + * + */ +#include <linux/kernel.h> +#include <linux/delay.h> +#include <asm/lasat/lasat.h> +#include <linux/module.h> + +#include "at93c.h" + +#define AT93C_ADDR_SHIFT 7 +#define AT93C_ADDR_MAX ((1 << AT93C_ADDR_SHIFT) - 1) +#define AT93C_RCMD (0x6 << AT93C_ADDR_SHIFT) +#define AT93C_WCMD (0x5 << AT93C_ADDR_SHIFT) +#define AT93C_WENCMD 0x260 +#define AT93C_WDSCMD 0x200 + +struct at93c_defs *at93c; + +static void at93c_reg_write(u32 val) +{ + *at93c->reg = val; +} + +static u32 at93c_reg_read(void) +{ + u32 tmp = *at93c->reg; + return tmp; +} + +static u32 at93c_datareg_read(void) +{ + u32 tmp = *at93c->rdata_reg; + return tmp; +} + +static void at93c_cycle_clk(u32 data) +{ + at93c_reg_write(data | at93c->clk); + lasat_ndelay(250); + at93c_reg_write(data & ~at93c->clk); + lasat_ndelay(250); +} + +static void at93c_write_databit(u8 bit) +{ + u32 data = at93c_reg_read(); + if (bit) + data |= 1 << at93c->wdata_shift; + else + data &= ~(1 << at93c->wdata_shift); + + at93c_reg_write(data); + lasat_ndelay(100); + at93c_cycle_clk(data); +} + +static unsigned int at93c_read_databit(void) +{ + u32 data; + + at93c_cycle_clk(at93c_reg_read()); + data = (at93c_datareg_read() >> at93c->rdata_shift) & 1; + return data; +} + +static u8 at93c_read_byte(void) +{ + int i; + u8 data = 0; + + for (i = 0; i <= 7; i++) { + data <<= 1; + data |= at93c_read_databit(); + } + return data; +} + +static void at93c_write_bits(u32 data, int size) +{ + int i; + int shift = size - 1; + u32 mask = (1 << shift); + + for (i = 0; i < size; i++) { + at93c_write_databit((data & mask) >> shift); + data <<= 1; + } +} + +static void at93c_init_op(void) +{ + at93c_reg_write((at93c_reg_read() | at93c->cs) & + ~at93c->clk & ~(1 << at93c->rdata_shift)); + lasat_ndelay(50); +} + +static void at93c_end_op(void) +{ + at93c_reg_write(at93c_reg_read() & ~at93c->cs); + lasat_ndelay(250); +} + +static void at93c_wait(void) +{ + at93c_init_op(); + while (!at93c_read_databit()) + ; + at93c_end_op(); +}; + +static void at93c_disable_wp(void) +{ + at93c_init_op(); + at93c_write_bits(AT93C_WENCMD, 10); + at93c_end_op(); +} + +static void at93c_enable_wp(void) +{ + at93c_init_op(); + at93c_write_bits(AT93C_WDSCMD, 10); + at93c_end_op(); +} + +u8 at93c_read(u8 addr) +{ + u8 byte; + at93c_init_op(); + at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_RCMD, 10); + byte = at93c_read_byte(); + at93c_end_op(); + return byte; +} + +void at93c_write(u8 addr, u8 data) +{ + at93c_disable_wp(); + at93c_init_op(); + at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_WCMD, 10); + at93c_write_bits(data, 8); + at93c_end_op(); + at93c_wait(); + at93c_enable_wp(); +} diff --git a/kernel/arch/mips/lasat/at93c.h b/kernel/arch/mips/lasat/at93c.h new file mode 100644 index 000000000..cfe2f99b1 --- /dev/null +++ b/kernel/arch/mips/lasat/at93c.h @@ -0,0 +1,18 @@ +/* + * Atmel AT93C46 serial eeprom driver + * + * Brian Murphy <brian.murphy@eicon.com> + * + */ + +extern struct at93c_defs { + volatile u32 *reg; + volatile u32 *rdata_reg; + int rdata_shift; + int wdata_shift; + u32 cs; + u32 clk; +} *at93c; + +u8 at93c_read(u8 addr); +void at93c_write(u8 addr, u8 data); diff --git a/kernel/arch/mips/lasat/ds1603.c b/kernel/arch/mips/lasat/ds1603.c new file mode 100644 index 000000000..c6fd96ff1 --- /dev/null +++ b/kernel/arch/mips/lasat/ds1603.c @@ -0,0 +1,184 @@ +/* + * Dallas Semiconductors 1603 RTC driver + * + * Brian Murphy <brian@murphy.dk> + * + */ +#include <linux/kernel.h> +#include <asm/lasat/lasat.h> +#include <linux/delay.h> +#include <asm/lasat/ds1603.h> +#include <asm/time.h> + +#include "ds1603.h" + +#define READ_TIME_CMD 0x81 +#define SET_TIME_CMD 0x80 +#define TRIMMER_SET_CMD 0xC0 +#define TRIMMER_VALUE_MASK 0x38 +#define TRIMMER_SHIFT 3 + +struct ds_defs *ds1603; + +/* HW specific register functions */ +static void rtc_reg_write(unsigned long val) +{ + *ds1603->reg = val; +} + +static unsigned long rtc_reg_read(void) +{ + unsigned long tmp = *ds1603->reg; + return tmp; +} + +static unsigned long rtc_datareg_read(void) +{ + unsigned long tmp = *ds1603->data_reg; + return tmp; +} + +static void rtc_nrst_high(void) +{ + rtc_reg_write(rtc_reg_read() | ds1603->rst); +} + +static void rtc_nrst_low(void) +{ + rtc_reg_write(rtc_reg_read() & ~ds1603->rst); +} + +static void rtc_cycle_clock(unsigned long data) +{ + data |= ds1603->clk; + rtc_reg_write(data); + lasat_ndelay(250); + if (ds1603->data_reversed) + data &= ~ds1603->data; + else + data |= ds1603->data; + data &= ~ds1603->clk; + rtc_reg_write(data); + lasat_ndelay(250 + ds1603->huge_delay); +} + +static void rtc_write_databit(unsigned int bit) +{ + unsigned long data = rtc_reg_read(); + if (ds1603->data_reversed) + bit = !bit; + if (bit) + data |= ds1603->data; + else + data &= ~ds1603->data; + + rtc_reg_write(data); + lasat_ndelay(50 + ds1603->huge_delay); + rtc_cycle_clock(data); +} + +static unsigned int rtc_read_databit(void) +{ + unsigned int data; + + data = (rtc_datareg_read() & (1 << ds1603->data_read_shift)) + >> ds1603->data_read_shift; + rtc_cycle_clock(rtc_reg_read()); + return data; +} + +static void rtc_write_byte(unsigned int byte) +{ + int i; + + for (i = 0; i <= 7; i++) { + rtc_write_databit(byte & 1L); + byte >>= 1; + } +} + +static void rtc_write_word(unsigned long word) +{ + int i; + + for (i = 0; i <= 31; i++) { + rtc_write_databit(word & 1L); + word >>= 1; + } +} + +static unsigned long rtc_read_word(void) +{ + int i; + unsigned long word = 0; + unsigned long shift = 0; + + for (i = 0; i <= 31; i++) { + word |= rtc_read_databit() << shift; + shift++; + } + return word; +} + +static void rtc_init_op(void) +{ + rtc_nrst_high(); + + rtc_reg_write(rtc_reg_read() & ~ds1603->clk); + + lasat_ndelay(50); +} + +static void rtc_end_op(void) +{ + rtc_nrst_low(); + lasat_ndelay(1000); +} + +void read_persistent_clock(struct timespec *ts) +{ + unsigned long word; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + rtc_init_op(); + rtc_write_byte(READ_TIME_CMD); + word = rtc_read_word(); + rtc_end_op(); + spin_unlock_irqrestore(&rtc_lock, flags); + + ts->tv_sec = word; + ts->tv_nsec = 0; +} + +int rtc_mips_set_mmss(unsigned long time) +{ + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + rtc_init_op(); + rtc_write_byte(SET_TIME_CMD); + rtc_write_word(time); + rtc_end_op(); + spin_unlock_irqrestore(&rtc_lock, flags); + + return 0; +} + +void ds1603_set_trimmer(unsigned int trimval) +{ + rtc_init_op(); + rtc_write_byte(((trimval << TRIMMER_SHIFT) & TRIMMER_VALUE_MASK) + | (TRIMMER_SET_CMD)); + rtc_end_op(); +} + +void ds1603_disable(void) +{ + ds1603_set_trimmer(TRIMMER_DISABLE_RTC); +} + +void ds1603_enable(void) +{ + ds1603_set_trimmer(TRIMMER_DEFAULT); +} diff --git a/kernel/arch/mips/lasat/ds1603.h b/kernel/arch/mips/lasat/ds1603.h new file mode 100644 index 000000000..3e718b1cc --- /dev/null +++ b/kernel/arch/mips/lasat/ds1603.h @@ -0,0 +1,31 @@ +/* + * Dallas Semiconductors 1603 RTC driver + * + * Brian Murphy <brian@murphy.dk> + * + */ +#ifndef __DS1603_H +#define __DS1603_H + +struct ds_defs { + volatile u32 *reg; + volatile u32 *data_reg; + u32 rst; + u32 clk; + u32 data; + u32 data_read_shift; + char data_reversed; + u32 huge_delay; +}; + +extern struct ds_defs *ds1603; + +void ds1603_set_trimmer(unsigned int); +void ds1603_enable(void); +void ds1603_disable(void); +void ds1603_init(struct ds_defs *); + +#define TRIMMER_DEFAULT 3 +#define TRIMMER_DISABLE_RTC 0 + +#endif diff --git a/kernel/arch/mips/lasat/image/Makefile b/kernel/arch/mips/lasat/image/Makefile new file mode 100644 index 000000000..fd3207567 --- /dev/null +++ b/kernel/arch/mips/lasat/image/Makefile @@ -0,0 +1,52 @@ +# +# MAKEFILE FOR THE MIPS LINUX BOOTLOADER AND ROM DEBUGGER +# +# i-data Networks +# +# Author: Thomas Horsten <thh@i-data.com> +# + +ifndef Version + Version = "$(USER)-test" +endif + +MKLASATIMG = mklasatimg +MKLASATIMG_ARCH = mq2,mqpro,sp100,sp200 +KERNEL_IMAGE = vmlinux + +LDSCRIPT= -L$(srctree)/$(src) -Tromscript.normal + +HEAD_DEFINES := -D_kernel_start=$(VMLINUX_LOAD_ADDRESS) \ + -D_kernel_entry=$(VMLINUX_ENTRY_ADDRESS) \ + -D VERSION="\"$(Version)\"" \ + -D TIMESTAMP=$(shell date +%s) + +$(obj)/head.o: $(obj)/head.S $(KERNEL_IMAGE) + $(CC) -fno-pic $(HEAD_DEFINES) $(LINUXINCLUDE) -c -o $@ $< + +OBJECTS = head.o kImage.o + +rom.sw: $(obj)/rom.sw +rom.bin: $(obj)/rom.bin + +$(obj)/rom.sw: $(obj)/rom.bin + $(MKLASATIMG) -o $@ -k $^ -m $(MKLASATIMG_ARCH) + +$(obj)/rom.bin: $(obj)/rom + $(OBJCOPY) -O binary -S $^ $@ + +# Rule to make the bootloader +$(obj)/rom: $(addprefix $(obj)/,$(OBJECTS)) + $(LD) $(LDFLAGS) $(LDSCRIPT) -o $@ $^ + +$(obj)/%.o: $(obj)/%.gz + $(LD) -r -o $@ -b binary $< + +$(obj)/%.gz: $(obj)/%.bin + gzip -cf -9 $< > $@ + +$(obj)/kImage.bin: $(KERNEL_IMAGE) + $(OBJCOPY) -O binary -S $^ $@ + +clean: + rm -f rom rom.bin rom.sw kImage.bin kImage.o diff --git a/kernel/arch/mips/lasat/image/head.S b/kernel/arch/mips/lasat/image/head.S new file mode 100644 index 000000000..41babbe43 --- /dev/null +++ b/kernel/arch/mips/lasat/image/head.S @@ -0,0 +1,31 @@ +#include <asm/lasat/head.h> + + .text + .section .text..start, "ax" + .set noreorder + .set mips3 + + /* Magic words identifying a software image */ + .word LASAT_K_MAGIC0_VAL + .word LASAT_K_MAGIC1_VAL + + /* Image header version */ + .word 0x00000002 + + /* image start and size */ + .word _image_start + .word _image_size + + /* start of kernel and entrypoint in uncompressed image */ + .word _kernel_start + .word _kernel_entry + + /* Here we have room for future flags */ + + .org 0x40 +reldate: + .word TIMESTAMP + + .org 0x50 +release: + .string VERSION diff --git a/kernel/arch/mips/lasat/image/romscript.normal b/kernel/arch/mips/lasat/image/romscript.normal new file mode 100644 index 000000000..0864c963e --- /dev/null +++ b/kernel/arch/mips/lasat/image/romscript.normal @@ -0,0 +1,23 @@ +OUTPUT_ARCH(mips) + +SECTIONS +{ + .text : + { + *(.text..start) + } + + /* Data in ROM */ + + .data ALIGN(0x10) : + { + *(.data) + } + _image_start = ADDR(.data); + _image_size = SIZEOF(.data); + + .other : + { + *(.*) + } +} diff --git a/kernel/arch/mips/lasat/interrupt.c b/kernel/arch/mips/lasat/interrupt.c new file mode 100644 index 000000000..d608b6ef0 --- /dev/null +++ b/kernel/arch/mips/lasat/interrupt.c @@ -0,0 +1,135 @@ +/* + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Routines for generic manipulation of the interrupts found on the + * Lasat boards. + */ +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/irq_cpu.h> +#include <asm/lasat/lasat.h> +#include <asm/lasat/lasatint.h> + +#include <irq.h> + +static volatile int *lasat_int_status; +static volatile int *lasat_int_mask; +static volatile int lasat_int_mask_shift; + +void disable_lasat_irq(struct irq_data *d) +{ + unsigned int irq_nr = d->irq - LASAT_IRQ_BASE; + + *lasat_int_mask &= ~(1 << irq_nr) << lasat_int_mask_shift; +} + +void enable_lasat_irq(struct irq_data *d) +{ + unsigned int irq_nr = d->irq - LASAT_IRQ_BASE; + + *lasat_int_mask |= (1 << irq_nr) << lasat_int_mask_shift; +} + +static struct irq_chip lasat_irq_type = { + .name = "Lasat", + .irq_mask = disable_lasat_irq, + .irq_unmask = enable_lasat_irq, +}; + +static inline int ls1bit32(unsigned int x) +{ + int b = 31, s; + + s = 16; if (x << 16 == 0) s = 0; b -= s; x <<= s; + s = 8; if (x << 8 == 0) s = 0; b -= s; x <<= s; + s = 4; if (x << 4 == 0) s = 0; b -= s; x <<= s; + s = 2; if (x << 2 == 0) s = 0; b -= s; x <<= s; + s = 1; if (x << 1 == 0) s = 0; b -= s; + + return b; +} + +static unsigned long (*get_int_status)(void); + +static unsigned long get_int_status_100(void) +{ + return *lasat_int_status & *lasat_int_mask; +} + +static unsigned long get_int_status_200(void) +{ + unsigned long int_status; + + int_status = *lasat_int_status; + int_status &= (int_status >> LASATINT_MASK_SHIFT_200) & 0xffff; + return int_status; +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned long int_status; + unsigned int cause = read_c0_cause(); + int irq; + + if (cause & CAUSEF_IP7) { /* R4000 count / compare IRQ */ + do_IRQ(7); + return; + } + + int_status = get_int_status(); + + /* if int_status == 0, then the interrupt has already been cleared */ + if (int_status) { + irq = LASAT_IRQ_BASE + ls1bit32(int_status); + + do_IRQ(irq); + } +} + +static struct irqaction cascade = { + .handler = no_action, + .name = "cascade", + .flags = IRQF_NO_THREAD, +}; + +void __init arch_init_irq(void) +{ + int i; + + if (IS_LASAT_200()) { + lasat_int_status = (void *)LASAT_INT_STATUS_REG_200; + lasat_int_mask = (void *)LASAT_INT_MASK_REG_200; + lasat_int_mask_shift = LASATINT_MASK_SHIFT_200; + get_int_status = get_int_status_200; + *lasat_int_mask &= 0xffff; + } else { + lasat_int_status = (void *)LASAT_INT_STATUS_REG_100; + lasat_int_mask = (void *)LASAT_INT_MASK_REG_100; + lasat_int_mask_shift = LASATINT_MASK_SHIFT_100; + get_int_status = get_int_status_100; + *lasat_int_mask = 0; + } + + mips_cpu_irq_init(); + + for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++) + irq_set_chip_and_handler(i, &lasat_irq_type, handle_level_irq); + + setup_irq(LASAT_CASCADE_IRQ, &cascade); +} diff --git a/kernel/arch/mips/lasat/lasat_board.c b/kernel/arch/mips/lasat/lasat_board.c new file mode 100644 index 000000000..577bb463a --- /dev/null +++ b/kernel/arch/mips/lasat/lasat_board.c @@ -0,0 +1,280 @@ +/* + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Routines specific to the LASAT boards + */ +#include <linux/types.h> +#include <linux/crc32.h> +#include <asm/lasat/lasat.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/mutex.h> +#include <asm/addrspace.h> +#include "at93c.h" +/* New model description table */ +#include "lasat_models.h" + +static DEFINE_MUTEX(lasat_eeprom_mutex); + +#define EEPROM_CRC(data, len) (~crc32(~0, data, len)) + +struct lasat_info lasat_board_info; + +int EEPROMRead(unsigned int pos, unsigned char *data, int len) +{ + int i; + + for (i = 0; i < len; i++) + *data++ = at93c_read(pos++); + + return 0; +} + +int EEPROMWrite(unsigned int pos, unsigned char *data, int len) +{ + int i; + + for (i = 0; i < len; i++) + at93c_write(pos++, *data++); + + return 0; +} + +static void init_flash_sizes(void) +{ + unsigned long *lb = lasat_board_info.li_flashpart_base; + unsigned long *ls = lasat_board_info.li_flashpart_size; + int i; + + ls[LASAT_MTD_BOOTLOADER] = 0x40000; + ls[LASAT_MTD_SERVICE] = 0xC0000; + ls[LASAT_MTD_NORMAL] = 0x100000; + + if (!IS_LASAT_200()) { + lasat_board_info.li_flash_base = 0x1e000000; + + lb[LASAT_MTD_BOOTLOADER] = 0x1e400000; + + if (lasat_board_info.li_flash_size > 0x200000) { + ls[LASAT_MTD_CONFIG] = 0x100000; + ls[LASAT_MTD_FS] = 0x500000; + } + } else { + lasat_board_info.li_flash_base = 0x10000000; + + if (lasat_board_info.li_flash_size < 0x1000000) { + lb[LASAT_MTD_BOOTLOADER] = 0x10000000; + ls[LASAT_MTD_CONFIG] = 0x100000; + if (lasat_board_info.li_flash_size >= 0x400000) + ls[LASAT_MTD_FS] = + lasat_board_info.li_flash_size - 0x300000; + } + } + + for (i = 1; i < LASAT_MTD_LAST; i++) + lb[i] = lb[i-1] + ls[i-1]; +} + +int lasat_init_board_info(void) +{ + int c; + unsigned long crc; + unsigned long cfg0, cfg1; + const struct product_info *ppi; + int i_n_base_models = N_BASE_MODELS; + const char * const * i_txt_base_models = txt_base_models; + int i_n_prids = N_PRIDS; + + memset(&lasat_board_info, 0, sizeof(lasat_board_info)); + + /* First read the EEPROM info */ + EEPROMRead(0, (unsigned char *)&lasat_board_info.li_eeprom_info, + sizeof(struct lasat_eeprom_struct)); + + /* Check the CRC */ + crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info), + sizeof(struct lasat_eeprom_struct) - 4); + + if (crc != lasat_board_info.li_eeprom_info.crc32) { + printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM CRC does " + "not match calculated, attempting to soldier on...\n"); + } + + if (lasat_board_info.li_eeprom_info.version != LASAT_EEPROM_VERSION) { + printk(KERN_WARNING "WARNING...\nWARNING...\nEEPROM version " + "%d, wanted version %d, attempting to soldier on...\n", + (unsigned int)lasat_board_info.li_eeprom_info.version, + LASAT_EEPROM_VERSION); + } + + cfg0 = lasat_board_info.li_eeprom_info.cfg[0]; + cfg1 = lasat_board_info.li_eeprom_info.cfg[1]; + + if (LASAT_W0_DSCTYPE(cfg0) != 1) { + printk(KERN_WARNING "WARNING...\nWARNING...\n" + "Invalid configuration read from EEPROM, attempting to " + "soldier on..."); + } + /* We have a valid configuration */ + + switch (LASAT_W0_SDRAMBANKSZ(cfg0)) { + case 0: + lasat_board_info.li_memsize = 0x0800000; + break; + case 1: + lasat_board_info.li_memsize = 0x1000000; + break; + case 2: + lasat_board_info.li_memsize = 0x2000000; + break; + case 3: + lasat_board_info.li_memsize = 0x4000000; + break; + case 4: + lasat_board_info.li_memsize = 0x8000000; + break; + default: + lasat_board_info.li_memsize = 0; + } + + switch (LASAT_W0_SDRAMBANKS(cfg0)) { + case 0: + break; + case 1: + lasat_board_info.li_memsize *= 2; + break; + default: + break; + } + + switch (LASAT_W0_BUSSPEED(cfg0)) { + case 0x0: + lasat_board_info.li_bus_hz = 60000000; + break; + case 0x1: + lasat_board_info.li_bus_hz = 66000000; + break; + case 0x2: + lasat_board_info.li_bus_hz = 66666667; + break; + case 0x3: + lasat_board_info.li_bus_hz = 80000000; + break; + case 0x4: + lasat_board_info.li_bus_hz = 83333333; + break; + case 0x5: + lasat_board_info.li_bus_hz = 100000000; + break; + } + + switch (LASAT_W0_CPUCLK(cfg0)) { + case 0x0: + lasat_board_info.li_cpu_hz = + lasat_board_info.li_bus_hz; + break; + case 0x1: + lasat_board_info.li_cpu_hz = + lasat_board_info.li_bus_hz + + (lasat_board_info.li_bus_hz >> 1); + break; + case 0x2: + lasat_board_info.li_cpu_hz = + lasat_board_info.li_bus_hz + + lasat_board_info.li_bus_hz; + break; + case 0x3: + lasat_board_info.li_cpu_hz = + lasat_board_info.li_bus_hz + + lasat_board_info.li_bus_hz + + (lasat_board_info.li_bus_hz >> 1); + break; + case 0x4: + lasat_board_info.li_cpu_hz = + lasat_board_info.li_bus_hz + + lasat_board_info.li_bus_hz + + lasat_board_info.li_bus_hz; + break; + } + + /* Flash size */ + switch (LASAT_W1_FLASHSIZE(cfg1)) { + case 0: + lasat_board_info.li_flash_size = 0x200000; + break; + case 1: + lasat_board_info.li_flash_size = 0x400000; + break; + case 2: + lasat_board_info.li_flash_size = 0x800000; + break; + case 3: + lasat_board_info.li_flash_size = 0x1000000; + break; + case 4: + lasat_board_info.li_flash_size = 0x2000000; + break; + } + + init_flash_sizes(); + + lasat_board_info.li_bmid = LASAT_W0_BMID(cfg0); + lasat_board_info.li_prid = lasat_board_info.li_eeprom_info.prid; + if (lasat_board_info.li_prid == 0xffff || lasat_board_info.li_prid == 0) + lasat_board_info.li_prid = lasat_board_info.li_bmid; + + /* Base model stuff */ + if (lasat_board_info.li_bmid > i_n_base_models) + lasat_board_info.li_bmid = i_n_base_models; + strcpy(lasat_board_info.li_bmstr, + i_txt_base_models[lasat_board_info.li_bmid]); + + /* Product ID dependent values */ + c = lasat_board_info.li_prid; + if (c >= i_n_prids) { + strcpy(lasat_board_info.li_namestr, "Unknown Model"); + strcpy(lasat_board_info.li_typestr, "Unknown Type"); + } else { + ppi = &vendor_info_table[0].vi_product_info[c]; + strcpy(lasat_board_info.li_namestr, ppi->pi_name); + if (ppi->pi_type) + strcpy(lasat_board_info.li_typestr, ppi->pi_type); + else + sprintf(lasat_board_info.li_typestr, "%d", 10 * c); + } + + return 0; +} + +void lasat_write_eeprom_info(void) +{ + unsigned long crc; + + mutex_lock(&lasat_eeprom_mutex); + + /* Generate the CRC */ + crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info), + sizeof(struct lasat_eeprom_struct) - 4); + lasat_board_info.li_eeprom_info.crc32 = crc; + + /* Write the EEPROM info */ + EEPROMWrite(0, (unsigned char *)&lasat_board_info.li_eeprom_info, + sizeof(struct lasat_eeprom_struct)); + + mutex_unlock(&lasat_eeprom_mutex); +} diff --git a/kernel/arch/mips/lasat/lasat_models.h b/kernel/arch/mips/lasat/lasat_models.h new file mode 100644 index 000000000..e1cbd26ae --- /dev/null +++ b/kernel/arch/mips/lasat/lasat_models.h @@ -0,0 +1,67 @@ +/* + * Model description tables + */ +#include <linux/kernel.h> + +struct product_info { + const char *pi_name; + const char *pi_type; +}; + +struct vendor_info { + const char *vi_name; + const struct product_info *vi_product_info; +}; + +/* + * Base models + */ +static const char * const txt_base_models[] = { + "MQ 2", "MQ Pro", "SP 25", "SP 50", "SP 100", "SP 5000", "SP 7000", + "SP 1000", "Unknown" +}; +#define N_BASE_MODELS (ARRAY_SIZE(txt_base_models) - 1) + +/* + * Eicon Networks + */ +static const char txt_en_mq[] = "Masquerade"; +static const char txt_en_sp[] = "Safepipe"; + +static const struct product_info product_info_eicon[] = { + { txt_en_mq, "II" }, /* 0 */ + { txt_en_mq, "Pro" }, /* 1 */ + { txt_en_sp, "25" }, /* 2 */ + { txt_en_sp, "50" }, /* 3 */ + { txt_en_sp, "100" }, /* 4 */ + { txt_en_sp, "5000" }, /* 5 */ + { txt_en_sp, "7000" }, /* 6 */ + { txt_en_sp, "30" }, /* 7 */ + { txt_en_sp, "5100" }, /* 8 */ + { txt_en_sp, "7100" }, /* 9 */ + { txt_en_sp, "1110" }, /* 10 */ + { txt_en_sp, "3020" }, /* 11 */ + { txt_en_sp, "3030" }, /* 12 */ + { txt_en_sp, "5020" }, /* 13 */ + { txt_en_sp, "5030" }, /* 14 */ + { txt_en_sp, "1120" }, /* 15 */ + { txt_en_sp, "1130" }, /* 16 */ + { txt_en_sp, "6010" }, /* 17 */ + { txt_en_sp, "6110" }, /* 18 */ + { txt_en_sp, "6210" }, /* 19 */ + { txt_en_sp, "1020" }, /* 20 */ + { txt_en_sp, "1040" }, /* 21 */ + { txt_en_sp, "1050" }, /* 22 */ + { txt_en_sp, "1060" }, /* 23 */ +}; + +#define N_PRIDS ARRAY_SIZE(product_info_eicon) + +/* + * The vendor table + */ +static struct vendor_info const vendor_info_table[] = { + { "Eicon Networks", product_info_eicon }, +}; + +#define N_VENDORS ARRAY_SIZE(vendor_info_table) diff --git a/kernel/arch/mips/lasat/picvue.c b/kernel/arch/mips/lasat/picvue.c new file mode 100644 index 000000000..d613b97cd --- /dev/null +++ b/kernel/arch/mips/lasat/picvue.c @@ -0,0 +1,241 @@ +/* + * Picvue PVC160206 display driver + * + * Brian Murphy <brian@murphy.dk> + * + */ +#include <linux/kernel.h> +#include <linux/delay.h> +#include <asm/bootinfo.h> +#include <asm/lasat/lasat.h> +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/string.h> + +#include "picvue.h" + +#define PVC_BUSY 0x80 +#define PVC_NLINES 2 +#define PVC_DISPMEM 80 +#define PVC_LINELEN PVC_DISPMEM / PVC_NLINES + +struct pvc_defs *picvue; + +static void pvc_reg_write(u32 val) +{ + *picvue->reg = val; +} + +static u32 pvc_reg_read(void) +{ + u32 tmp = *picvue->reg; + return tmp; +} + +static void pvc_write_byte(u32 data, u8 byte) +{ + data |= picvue->e; + pvc_reg_write(data); + data &= ~picvue->data_mask; + data |= byte << picvue->data_shift; + pvc_reg_write(data); + ndelay(220); + pvc_reg_write(data & ~picvue->e); + ndelay(220); +} + +static u8 pvc_read_byte(u32 data) +{ + u8 byte; + + data |= picvue->e; + pvc_reg_write(data); + ndelay(220); + byte = (pvc_reg_read() & picvue->data_mask) >> picvue->data_shift; + data &= ~picvue->e; + pvc_reg_write(data); + ndelay(220); + return byte; +} + +static u8 pvc_read_data(void) +{ + u32 data = pvc_reg_read(); + u8 byte; + data |= picvue->rw; + data &= ~picvue->rs; + pvc_reg_write(data); + ndelay(40); + byte = pvc_read_byte(data); + data |= picvue->rs; + pvc_reg_write(data); + return byte; +} + +#define TIMEOUT 1000 +static int pvc_wait(void) +{ + int i = TIMEOUT; + int err = 0; + + while ((pvc_read_data() & PVC_BUSY) && i) + i--; + if (i == 0) + err = -ETIME; + + return err; +} + +#define MODE_INST 0 +#define MODE_DATA 1 +static void pvc_write(u8 byte, int mode) +{ + u32 data = pvc_reg_read(); + data &= ~picvue->rw; + if (mode == MODE_DATA) + data |= picvue->rs; + else + data &= ~picvue->rs; + pvc_reg_write(data); + ndelay(40); + pvc_write_byte(data, byte); + if (mode == MODE_DATA) + data &= ~picvue->rs; + else + data |= picvue->rs; + pvc_reg_write(data); + pvc_wait(); +} + +void pvc_write_string(const unsigned char *str, u8 addr, int line) +{ + int i = 0; + + if (line > 0 && (PVC_NLINES > 1)) + addr += 0x40 * line; + pvc_write(0x80 | addr, MODE_INST); + + while (*str != 0 && i < PVC_LINELEN) { + pvc_write(*str++, MODE_DATA); + i++; + } +} + +void pvc_write_string_centered(const unsigned char *str, int line) +{ + int len = strlen(str); + u8 addr; + + if (len > PVC_VISIBLE_CHARS) + addr = 0; + else + addr = (PVC_VISIBLE_CHARS - strlen(str))/2; + + pvc_write_string(str, addr, line); +} + +void pvc_dump_string(const unsigned char *str) +{ + int len = strlen(str); + + pvc_write_string(str, 0, 0); + if (len > PVC_VISIBLE_CHARS) + pvc_write_string(&str[PVC_VISIBLE_CHARS], 0, 1); +} + +#define BM_SIZE 8 +#define MAX_PROGRAMMABLE_CHARS 8 +int pvc_program_cg(int charnum, u8 bitmap[BM_SIZE]) +{ + int i; + int addr; + + if (charnum > MAX_PROGRAMMABLE_CHARS) + return -ENOENT; + + addr = charnum * 8; + pvc_write(0x40 | addr, MODE_INST); + + for (i = 0; i < BM_SIZE; i++) + pvc_write(bitmap[i], MODE_DATA); + return 0; +} + +#define FUNC_SET_CMD 0x20 +#define EIGHT_BYTE (1 << 4) +#define FOUR_BYTE 0 +#define TWO_LINES (1 << 3) +#define ONE_LINE 0 +#define LARGE_FONT (1 << 2) +#define SMALL_FONT 0 + +static void pvc_funcset(u8 cmd) +{ + pvc_write(FUNC_SET_CMD | (cmd & (EIGHT_BYTE|TWO_LINES|LARGE_FONT)), + MODE_INST); +} + +#define ENTRYMODE_CMD 0x4 +#define AUTO_INC (1 << 1) +#define AUTO_DEC 0 +#define CURSOR_FOLLOWS_DISP (1 << 0) + +static void pvc_entrymode(u8 cmd) +{ + pvc_write(ENTRYMODE_CMD | (cmd & (AUTO_INC|CURSOR_FOLLOWS_DISP)), + MODE_INST); +} + +#define DISP_CNT_CMD 0x08 +#define DISP_OFF 0 +#define DISP_ON (1 << 2) +#define CUR_ON (1 << 1) +#define CUR_BLINK (1 << 0) +void pvc_dispcnt(u8 cmd) +{ + pvc_write(DISP_CNT_CMD | (cmd & (DISP_ON|CUR_ON|CUR_BLINK)), MODE_INST); +} + +#define MOVE_CMD 0x10 +#define DISPLAY (1 << 3) +#define CURSOR 0 +#define RIGHT (1 << 2) +#define LEFT 0 +void pvc_move(u8 cmd) +{ + pvc_write(MOVE_CMD | (cmd & (DISPLAY|RIGHT)), MODE_INST); +} + +#define CLEAR_CMD 0x1 +void pvc_clear(void) +{ + pvc_write(CLEAR_CMD, MODE_INST); +} + +#define HOME_CMD 0x2 +void pvc_home(void) +{ + pvc_write(HOME_CMD, MODE_INST); +} + +int pvc_init(void) +{ + u8 cmd = EIGHT_BYTE; + + if (PVC_NLINES == 2) + cmd |= (SMALL_FONT|TWO_LINES); + else + cmd |= (LARGE_FONT|ONE_LINE); + pvc_funcset(cmd); + pvc_dispcnt(DISP_ON); + pvc_entrymode(AUTO_INC); + + pvc_clear(); + pvc_write_string_centered("Display", 0); + pvc_write_string_centered("Initialized", 1); + + return 0; +} + +module_init(pvc_init); +MODULE_LICENSE("GPL"); diff --git a/kernel/arch/mips/lasat/picvue.h b/kernel/arch/mips/lasat/picvue.h new file mode 100644 index 000000000..d0119fca3 --- /dev/null +++ b/kernel/arch/mips/lasat/picvue.h @@ -0,0 +1,44 @@ +/* + * Picvue PVC160206 display driver + * + * Brian Murphy <brian.murphy@eicon.com> + * + */ +struct pvc_defs { + volatile u32 *reg; + u32 data_shift; + u32 data_mask; + u32 e; + u32 rw; + u32 rs; +}; + +extern struct pvc_defs *picvue; + +#define PVC_NLINES 2 +#define PVC_DISPMEM 80 +#define PVC_LINELEN PVC_DISPMEM / PVC_NLINES +#define PVC_VISIBLE_CHARS 16 + +void pvc_write_string(const unsigned char *str, u8 addr, int line); +void pvc_write_string_centered(const unsigned char *str, int line); +void pvc_dump_string(const unsigned char *str); + +#define BM_SIZE 8 +#define MAX_PROGRAMMABLE_CHARS 8 +int pvc_program_cg(int charnum, u8 bitmap[BM_SIZE]); + +void pvc_dispcnt(u8 cmd); +#define DISP_OFF 0 +#define DISP_ON (1 << 2) +#define CUR_ON (1 << 1) +#define CUR_BLINK (1 << 0) + +void pvc_move(u8 cmd); +#define DISPLAY (1 << 3) +#define CURSOR 0 +#define RIGHT (1 << 2) +#define LEFT 0 + +void pvc_clear(void); +void pvc_home(void); diff --git a/kernel/arch/mips/lasat/picvue_proc.c b/kernel/arch/mips/lasat/picvue_proc.c new file mode 100644 index 000000000..2bcd8391b --- /dev/null +++ b/kernel/arch/mips/lasat/picvue_proc.c @@ -0,0 +1,216 @@ +/* + * Picvue PVC160206 display driver + * + * Brian Murphy <brian.murphy@eicon.com> + * + */ +#include <linux/bug.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/errno.h> + +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/interrupt.h> + +#include <linux/timer.h> +#include <linux/mutex.h> + +#include "picvue.h" + +static DEFINE_MUTEX(pvc_mutex); +static char pvc_lines[PVC_NLINES][PVC_LINELEN+1]; +static int pvc_linedata[PVC_NLINES]; +static struct proc_dir_entry *pvc_display_dir; +static char *pvc_linename[PVC_NLINES] = {"line1", "line2"}; +#define DISPLAY_DIR_NAME "display" +static int scroll_dir, scroll_interval; + +static struct timer_list timer; + +static void pvc_display(unsigned long data) +{ + int i; + + pvc_clear(); + for (i = 0; i < PVC_NLINES; i++) + pvc_write_string(pvc_lines[i], 0, i); +} + +static DECLARE_TASKLET(pvc_display_tasklet, &pvc_display, 0); + +static int pvc_line_proc_show(struct seq_file *m, void *v) +{ + int lineno = *(int *)m->private; + + if (lineno < 0 || lineno > PVC_NLINES) { + printk(KERN_WARNING "proc_read_line: invalid lineno %d\n", lineno); + return 0; + } + + mutex_lock(&pvc_mutex); + seq_printf(m, "%s\n", pvc_lines[lineno]); + mutex_unlock(&pvc_mutex); + + return 0; +} + +static int pvc_line_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, pvc_line_proc_show, PDE_DATA(inode)); +} + +static ssize_t pvc_line_proc_write(struct file *file, const char __user *buf, + size_t count, loff_t *pos) +{ + int lineno = *(int *)PDE_DATA(file_inode(file)); + char kbuf[PVC_LINELEN]; + size_t len; + + BUG_ON(lineno < 0 || lineno > PVC_NLINES); + + len = min(count, sizeof(kbuf) - 1); + if (copy_from_user(kbuf, buf, len)) + return -EFAULT; + kbuf[len] = '\0'; + + if (len > 0 && kbuf[len - 1] == '\n') + len--; + + mutex_lock(&pvc_mutex); + strncpy(pvc_lines[lineno], kbuf, len); + pvc_lines[lineno][len] = '\0'; + mutex_unlock(&pvc_mutex); + + tasklet_schedule(&pvc_display_tasklet); + + return count; +} + +static const struct file_operations pvc_line_proc_fops = { + .owner = THIS_MODULE, + .open = pvc_line_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = pvc_line_proc_write, +}; + +static ssize_t pvc_scroll_proc_write(struct file *file, const char __user *buf, + size_t count, loff_t *pos) +{ + char kbuf[42]; + size_t len; + int cmd; + + len = min(count, sizeof(kbuf) - 1); + if (copy_from_user(kbuf, buf, len)) + return -EFAULT; + kbuf[len] = '\0'; + + cmd = simple_strtol(kbuf, NULL, 10); + + mutex_lock(&pvc_mutex); + if (scroll_interval != 0) + del_timer(&timer); + + if (cmd == 0) { + scroll_dir = 0; + scroll_interval = 0; + } else { + if (cmd < 0) { + scroll_dir = -1; + scroll_interval = -cmd; + } else { + scroll_dir = 1; + scroll_interval = cmd; + } + add_timer(&timer); + } + mutex_unlock(&pvc_mutex); + + return count; +} + +static int pvc_scroll_proc_show(struct seq_file *m, void *v) +{ + mutex_lock(&pvc_mutex); + seq_printf(m, "%d\n", scroll_dir * scroll_interval); + mutex_unlock(&pvc_mutex); + + return 0; +} + +static int pvc_scroll_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, pvc_scroll_proc_show, NULL); +} + +static const struct file_operations pvc_scroll_proc_fops = { + .owner = THIS_MODULE, + .open = pvc_scroll_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = pvc_scroll_proc_write, +}; + +void pvc_proc_timerfunc(unsigned long data) +{ + if (scroll_dir < 0) + pvc_move(DISPLAY|RIGHT); + else if (scroll_dir > 0) + pvc_move(DISPLAY|LEFT); + + timer.expires = jiffies + scroll_interval; + add_timer(&timer); +} + +static void pvc_proc_cleanup(void) +{ + int i; + for (i = 0; i < PVC_NLINES; i++) + remove_proc_entry(pvc_linename[i], pvc_display_dir); + remove_proc_entry("scroll", pvc_display_dir); + remove_proc_entry(DISPLAY_DIR_NAME, NULL); + + del_timer_sync(&timer); +} + +static int __init pvc_proc_init(void) +{ + struct proc_dir_entry *proc_entry; + int i; + + pvc_display_dir = proc_mkdir(DISPLAY_DIR_NAME, NULL); + if (pvc_display_dir == NULL) + goto error; + + for (i = 0; i < PVC_NLINES; i++) { + strcpy(pvc_lines[i], ""); + pvc_linedata[i] = i; + } + for (i = 0; i < PVC_NLINES; i++) { + proc_entry = proc_create_data(pvc_linename[i], 0644, pvc_display_dir, + &pvc_line_proc_fops, &pvc_linedata[i]); + if (proc_entry == NULL) + goto error; + } + proc_entry = proc_create("scroll", 0644, pvc_display_dir, + &pvc_scroll_proc_fops); + if (proc_entry == NULL) + goto error; + + init_timer(&timer); + timer.function = pvc_proc_timerfunc; + + return 0; +error: + pvc_proc_cleanup(); + return -ENOMEM; +} + +module_init(pvc_proc_init); +module_exit(pvc_proc_cleanup); +MODULE_LICENSE("GPL"); diff --git a/kernel/arch/mips/lasat/prom.c b/kernel/arch/mips/lasat/prom.c new file mode 100644 index 000000000..20fde19a5 --- /dev/null +++ b/kernel/arch/mips/lasat/prom.c @@ -0,0 +1,124 @@ +/* + * PROM interface routines. + */ +#include <linux/types.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/bootmem.h> +#include <linux/ioport.h> +#include <asm/bootinfo.h> +#include <asm/lasat/lasat.h> +#include <asm/cpu.h> + +#include "at93c.h" +#include <asm/lasat/eeprom.h> +#include "prom.h" + +#define RESET_VECTOR 0xbfc00000 +#define PROM_JUMP_TABLE_ENTRY(n) (*((u32 *)(RESET_VECTOR + 0x20) + n)) +#define PROM_DISPLAY_ADDR PROM_JUMP_TABLE_ENTRY(0) +#define PROM_PUTC_ADDR PROM_JUMP_TABLE_ENTRY(1) +#define PROM_MONITOR_ADDR PROM_JUMP_TABLE_ENTRY(2) + +static void null_prom_display(const char *string, int pos, int clear) +{ +} + +static void null_prom_monitor(void) +{ +} + +static void null_prom_putc(char c) +{ +} + +/* these are functions provided by the bootloader */ +static void (*__prom_putc)(char c) = null_prom_putc; + +void prom_putchar(char c) +{ + __prom_putc(c); +} + +void (*prom_display)(const char *string, int pos, int clear) = + null_prom_display; +void (*prom_monitor)(void) = null_prom_monitor; + +unsigned int lasat_ndelay_divider; + +static void setup_prom_vectors(void) +{ + u32 version = *(u32 *)(RESET_VECTOR + 0x90); + + if (version >= 307) { + prom_display = (void *)PROM_DISPLAY_ADDR; + __prom_putc = (void *)PROM_PUTC_ADDR; + prom_monitor = (void *)PROM_MONITOR_ADDR; + } + printk(KERN_DEBUG "prom vectors set up\n"); +} + +static struct at93c_defs at93c_defs[N_MACHTYPES] = { + { + .reg = (void *)AT93C_REG_100, + .rdata_reg = (void *)AT93C_RDATA_REG_100, + .rdata_shift = AT93C_RDATA_SHIFT_100, + .wdata_shift = AT93C_WDATA_SHIFT_100, + .cs = AT93C_CS_M_100, + .clk = AT93C_CLK_M_100 + }, { + .reg = (void *)AT93C_REG_200, + .rdata_reg = (void *)AT93C_RDATA_REG_200, + .rdata_shift = AT93C_RDATA_SHIFT_200, + .wdata_shift = AT93C_WDATA_SHIFT_200, + .cs = AT93C_CS_M_200, + .clk = AT93C_CLK_M_200 + }, +}; + +void __init prom_init(void) +{ + int argc = fw_arg0; + char **argv = (char **) fw_arg1; + + setup_prom_vectors(); + + if (IS_LASAT_200()) { + printk(KERN_INFO "LASAT 200 board\n"); + lasat_ndelay_divider = LASAT_200_DIVIDER; + at93c = &at93c_defs[1]; + } else { + printk(KERN_INFO "LASAT 100 board\n"); + lasat_ndelay_divider = LASAT_100_DIVIDER; + at93c = &at93c_defs[0]; + } + + lasat_init_board_info(); /* Read info from EEPROM */ + + /* Get the command line */ + if (argc > 0) { + strncpy(arcs_cmdline, argv[0], COMMAND_LINE_SIZE-1); + arcs_cmdline[COMMAND_LINE_SIZE-1] = '\0'; + } + + /* Set the I/O base address */ + set_io_port_base(KSEG1); + + /* Set memory regions */ + ioport_resource.start = 0; + ioport_resource.end = 0xffffffff; /* Wrong, fixme. */ + + add_memory_region(0, lasat_board_info.li_memsize, BOOT_MEM_RAM); +} + +void __init prom_free_prom_memory(void) +{ +} + +const char *get_system_type(void) +{ + return lasat_board_info.li_bmstr; +} diff --git a/kernel/arch/mips/lasat/prom.h b/kernel/arch/mips/lasat/prom.h new file mode 100644 index 000000000..337acbc27 --- /dev/null +++ b/kernel/arch/mips/lasat/prom.h @@ -0,0 +1,7 @@ +#ifndef __PROM_H +#define __PROM_H + +extern void (*prom_display)(const char *string, int pos, int clear); +extern void (*prom_monitor)(void); + +#endif /* __PROM_H */ diff --git a/kernel/arch/mips/lasat/reset.c b/kernel/arch/mips/lasat/reset.c new file mode 100644 index 000000000..e21f0b9a5 --- /dev/null +++ b/kernel/arch/mips/lasat/reset.c @@ -0,0 +1,60 @@ +/* + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Reset the LASAT board. + */ +#include <linux/kernel.h> +#include <linux/pm.h> + +#include <asm/reboot.h> +#include <asm/lasat/lasat.h> + +#include "picvue.h" +#include "prom.h" + +static void lasat_machine_restart(char *command); +static void lasat_machine_halt(void); + +/* Used to set machine to boot in service mode via /proc interface */ +int lasat_boot_to_service; + +static void lasat_machine_restart(char *command) +{ + local_irq_disable(); + + if (lasat_boot_to_service) { + *(volatile unsigned int *)0xa0000024 = 0xdeadbeef; + *(volatile unsigned int *)0xa00000fc = 0xfedeabba; + } + *lasat_misc->reset_reg = 0xbedead; + for (;;) ; +} + +static void lasat_machine_halt(void) +{ + local_irq_disable(); + + prom_monitor(); + for (;;) ; +} + +void lasat_reboot_setup(void) +{ + _machine_restart = lasat_machine_restart; + _machine_halt = lasat_machine_halt; + pm_power_off = lasat_machine_halt; +} diff --git a/kernel/arch/mips/lasat/serial.c b/kernel/arch/mips/lasat/serial.c new file mode 100644 index 000000000..2e5fbed81 --- /dev/null +++ b/kernel/arch/mips/lasat/serial.c @@ -0,0 +1,93 @@ +/* + * Registration of Lasat UART platform device. + * + * Copyright (C) 2007 Brian Murphy <brian@murphy.dk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> + +#include <asm/lasat/lasat.h> +#include <asm/lasat/serial.h> + +static struct resource lasat_serial_res[2] __initdata; + +static struct plat_serial8250_port lasat_serial8250_port[] = { + { + .iotype = UPIO_MEM, + .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | + UPF_SKIP_TEST, + }, + {}, +}; + +static __init int lasat_uart_add(void) +{ + struct platform_device *pdev; + int retval; + + pdev = platform_device_alloc("serial8250", -1); + if (!pdev) + return -ENOMEM; + + if (!IS_LASAT_200()) { + lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100); + lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1; + lasat_serial_res[0].flags = IORESOURCE_MEM; + lasat_serial_res[1].start = LASATINT_UART_100; + lasat_serial_res[1].end = LASATINT_UART_100; + lasat_serial_res[1].flags = IORESOURCE_IRQ; + + lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_100; + lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_100 * 16; + lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_100; + lasat_serial8250_port[0].irq = LASATINT_UART_100; + } else { + lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_200); + lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_200 * 8 - 1; + lasat_serial_res[0].flags = IORESOURCE_MEM; + lasat_serial_res[1].start = LASATINT_UART_200; + lasat_serial_res[1].end = LASATINT_UART_200; + lasat_serial_res[1].flags = IORESOURCE_IRQ; + + lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_200; + lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_200 * 16; + lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_200; + lasat_serial8250_port[0].irq = LASATINT_UART_200; + } + + pdev->id = PLAT8250_DEV_PLATFORM; + pdev->dev.platform_data = lasat_serial8250_port; + + retval = platform_device_add_resources(pdev, lasat_serial_res, ARRAY_SIZE(lasat_serial_res)); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(lasat_uart_add); diff --git a/kernel/arch/mips/lasat/setup.c b/kernel/arch/mips/lasat/setup.c new file mode 100644 index 000000000..dbd3163a8 --- /dev/null +++ b/kernel/arch/mips/lasat/setup.c @@ -0,0 +1,153 @@ +/* + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved. + * + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * Brian Murphy <brian@murphy.dk> + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Lasat specific setup. + */ +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/tty.h> + +#include <asm/time.h> +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/lasat/lasat.h> +#include <asm/lasat/serial.h> + +#ifdef CONFIG_PICVUE +#include <linux/notifier.h> +#endif + +#include "ds1603.h" +#include <asm/lasat/ds1603.h> +#include <asm/lasat/picvue.h> +#include <asm/lasat/eeprom.h> + +#include "prom.h" + +int lasat_command_line; +void lasatint_init(void); + +extern void lasat_reboot_setup(void); +extern void pcisetup(void); +extern void edhac_init(void *, void *, void *); +extern void addrflt_init(void); + +struct lasat_misc lasat_misc_info[N_MACHTYPES] = { + { + .reset_reg = (void *)KSEG1ADDR(0x1c840000), + .flash_wp_reg = (void *)KSEG1ADDR(0x1c800000), 2 + }, { + .reset_reg = (void *)KSEG1ADDR(0x11080000), + .flash_wp_reg = (void *)KSEG1ADDR(0x11000000), 6 + } +}; + +struct lasat_misc *lasat_misc; + +#ifdef CONFIG_DS1603 +static struct ds_defs ds_defs[N_MACHTYPES] = { + { (void *)DS1603_REG_100, (void *)DS1603_REG_100, + DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100, + DS1603_DATA_SHIFT_100, 0, 0 }, + { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200, + DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200, + DS1603_DATA_READ_SHIFT_200, 1, 2000 } +}; +#endif + +#ifdef CONFIG_PICVUE +#include "picvue.h" +static struct pvc_defs pvc_defs[N_MACHTYPES] = { + { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100, + PVC_E_100, PVC_RW_100, PVC_RS_100 }, + { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200, + PVC_E_200, PVC_RW_200, PVC_RS_200 } +}; +#endif + +static int lasat_panic_display(struct notifier_block *this, + unsigned long event, void *ptr) +{ +#ifdef CONFIG_PICVUE + unsigned char *string = ptr; + if (string == NULL) + string = "Kernel Panic"; + pvc_dump_string(string); +#endif + return NOTIFY_DONE; +} + +static int lasat_panic_prom_monitor(struct notifier_block *this, + unsigned long event, void *ptr) +{ + prom_monitor(); + return NOTIFY_DONE; +} + +static struct notifier_block lasat_panic_block[] = +{ + { + .notifier_call = lasat_panic_display, + .priority = INT_MAX + }, { + .notifier_call = lasat_panic_prom_monitor, + .priority = INT_MIN + } +}; + +void __init plat_time_init(void) +{ + mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2; + + change_c0_status(ST0_IM, IE_IRQ0); +} + +void __init plat_mem_setup(void) +{ + int i; + int lasat_type = IS_LASAT_200() ? 1 : 0; + + lasat_misc = &lasat_misc_info[lasat_type]; +#ifdef CONFIG_PICVUE + picvue = &pvc_defs[lasat_type]; +#endif + + /* Set up panic notifier */ + for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++) + atomic_notifier_chain_register(&panic_notifier_list, + &lasat_panic_block[i]); + + lasat_reboot_setup(); + +#ifdef CONFIG_DS1603 + ds1603 = &ds_defs[lasat_type]; +#endif + +#ifdef DYNAMIC_SERIAL_INIT + serial_init(); +#endif + + pr_info("Lasat specific initialization complete\n"); +} diff --git a/kernel/arch/mips/lasat/sysctl.c b/kernel/arch/mips/lasat/sysctl.c new file mode 100644 index 000000000..a57959e64 --- /dev/null +++ b/kernel/arch/mips/lasat/sysctl.c @@ -0,0 +1,273 @@ +/* + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Routines specific to the LASAT boards + */ +#include <linux/types.h> +#include <asm/lasat/lasat.h> + +#include <linux/module.h> +#include <linux/sysctl.h> +#include <linux/stddef.h> +#include <linux/init.h> +#include <linux/fs.h> +#include <linux/ctype.h> +#include <linux/string.h> +#include <linux/net.h> +#include <linux/inet.h> +#include <linux/uaccess.h> + +#include <asm/time.h> + +#ifdef CONFIG_DS1603 +#include "ds1603.h" +#endif + + +/* And the same for proc */ +int proc_dolasatstring(struct ctl_table *table, int write, + void *buffer, size_t *lenp, loff_t *ppos) +{ + int r; + + r = proc_dostring(table, write, buffer, lenp, ppos); + if ((!write) || r) + return r; + + lasat_write_eeprom_info(); + + return 0; +} + +#ifdef CONFIG_DS1603 +static int rtctmp; + +/* proc function to read/write RealTime Clock */ +int proc_dolasatrtc(struct ctl_table *table, int write, + void *buffer, size_t *lenp, loff_t *ppos) +{ + struct timespec64 ts; + int r; + + if (!write) { + read_persistent_clock64(&ts); + rtctmp = ts.tv_sec; + /* check for time < 0 and set to 0 */ + if (rtctmp < 0) + rtctmp = 0; + } + r = proc_dointvec(table, write, buffer, lenp, ppos); + if (r) + return r; + + if (write) + rtc_mips_set_mmss(rtctmp); + + return 0; +} +#endif + +#ifdef CONFIG_INET +int proc_lasat_ip(struct ctl_table *table, int write, + void *buffer, size_t *lenp, loff_t *ppos) +{ + unsigned int ip; + char *p, c; + int len; + char ipbuf[32]; + + if (!table->data || !table->maxlen || !*lenp || + (*ppos && !write)) { + *lenp = 0; + return 0; + } + + if (write) { + len = 0; + p = buffer; + while (len < *lenp) { + if (get_user(c, p++)) + return -EFAULT; + if (c == 0 || c == '\n') + break; + len++; + } + if (len >= sizeof(ipbuf)-1) + len = sizeof(ipbuf) - 1; + if (copy_from_user(ipbuf, buffer, len)) + return -EFAULT; + ipbuf[len] = 0; + *ppos += *lenp; + /* Now see if we can convert it to a valid IP */ + ip = in_aton(ipbuf); + *(unsigned int *)(table->data) = ip; + lasat_write_eeprom_info(); + } else { + ip = *(unsigned int *)(table->data); + sprintf(ipbuf, "%d.%d.%d.%d", + (ip) & 0xff, + (ip >> 8) & 0xff, + (ip >> 16) & 0xff, + (ip >> 24) & 0xff); + len = strlen(ipbuf); + if (len > *lenp) + len = *lenp; + if (len) + if (copy_to_user(buffer, ipbuf, len)) + return -EFAULT; + if (len < *lenp) { + if (put_user('\n', ((char *) buffer) + len)) + return -EFAULT; + len++; + } + *lenp = len; + *ppos += len; + } + + return 0; +} +#endif + +int proc_lasat_prid(struct ctl_table *table, int write, + void *buffer, size_t *lenp, loff_t *ppos) +{ + int r; + + r = proc_dointvec(table, write, buffer, lenp, ppos); + if (r < 0) + return r; + if (write) { + lasat_board_info.li_eeprom_info.prid = + lasat_board_info.li_prid; + lasat_write_eeprom_info(); + lasat_init_board_info(); + } + return 0; +} + +extern int lasat_boot_to_service; + +static struct ctl_table lasat_table[] = { + { + .procname = "cpu-hz", + .data = &lasat_board_info.li_cpu_hz, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = proc_dointvec, + }, + { + .procname = "bus-hz", + .data = &lasat_board_info.li_bus_hz, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = proc_dointvec, + }, + { + .procname = "bmid", + .data = &lasat_board_info.li_bmid, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = proc_dointvec, + }, + { + .procname = "prid", + .data = &lasat_board_info.li_prid, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_lasat_prid, + }, +#ifdef CONFIG_INET + { + .procname = "ipaddr", + .data = &lasat_board_info.li_eeprom_info.ipaddr, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_lasat_ip, + }, + { + .procname = "netmask", + .data = &lasat_board_info.li_eeprom_info.netmask, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_lasat_ip, + }, +#endif + { + .procname = "passwd_hash", + .data = &lasat_board_info.li_eeprom_info.passwd_hash, + .maxlen = + sizeof(lasat_board_info.li_eeprom_info.passwd_hash), + .mode = 0600, + .proc_handler = proc_dolasatstring, + }, + { + .procname = "boot-service", + .data = &lasat_boot_to_service, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, +#ifdef CONFIG_DS1603 + { + .procname = "rtc", + .data = &rtctmp, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dolasatrtc, + }, +#endif + { + .procname = "namestr", + .data = &lasat_board_info.li_namestr, + .maxlen = sizeof(lasat_board_info.li_namestr), + .mode = 0444, + .proc_handler = proc_dostring, + }, + { + .procname = "typestr", + .data = &lasat_board_info.li_typestr, + .maxlen = sizeof(lasat_board_info.li_typestr), + .mode = 0444, + .proc_handler = proc_dostring, + }, + {} +}; + +static struct ctl_table lasat_root_table[] = { + { + .procname = "lasat", + .mode = 0555, + .child = lasat_table + }, + {} +}; + +static int __init lasat_register_sysctl(void) +{ + struct ctl_table_header *lasat_table_header; + + lasat_table_header = + register_sysctl_table(lasat_root_table); + if (!lasat_table_header) { + printk(KERN_ERR "Unable to register LASAT sysctl\n"); + return -ENOMEM; + } + + return 0; +} + +__initcall(lasat_register_sysctl); |