diff options
Diffstat (limited to 'kernel/arch/mn10300/proc-mn103e010')
8 files changed, 359 insertions, 0 deletions
diff --git a/kernel/arch/mn10300/proc-mn103e010/Makefile b/kernel/arch/mn10300/proc-mn103e010/Makefile new file mode 100644 index 000000000..ac2c9784c --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the MN103E010 processor chip specific code +# +obj-y := proc-init.o + diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/cache.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/cache.h new file mode 100644 index 000000000..967d144f3 --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/cache.h @@ -0,0 +1,43 @@ +/* MN103E010 Cache specification + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef _ASM_PROC_CACHE_H +#define _ASM_PROC_CACHE_H + +/* L1 cache */ + +#define L1_CACHE_NWAYS 4 /* number of ways in caches */ +#define L1_CACHE_NENTRIES 256 /* number of entries in each way */ +#define L1_CACHE_BYTES 16 /* bytes per entry */ +#define L1_CACHE_SHIFT 4 /* shift for bytes per entry */ +#define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */ + +#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ +#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */ +#define L1_CACHE_TAG_ENTRY 0x00000ff0 /* cache tag entry address mask */ +#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */ +#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY) + +/* + * specification of the interval between interrupt checking intervals whilst + * managing the cache with the interrupts disabled + */ +#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4 + +/* + * The size of range at which it becomes more economical to just flush the + * whole cache rather than trying to flush the specified range. + */ +#define MN10300_DCACHE_FLUSH_BORDER \ + +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) +#define MN10300_DCACHE_FLUSH_INV_BORDER \ + +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) + +#endif /* _ASM_PROC_CACHE_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/clock.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/clock.h new file mode 100644 index 000000000..704a819f1 --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/clock.h @@ -0,0 +1,16 @@ +/* MN103E010-specific clocks + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef _ASM_PROC_CLOCK_H +#define _ASM_PROC_CLOCK_H + +#include <unit/clock.h> + +#endif /* _ASM_PROC_CLOCK_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h new file mode 100644 index 000000000..d72d328d1 --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h @@ -0,0 +1,102 @@ +/* MN103E010 on-board DMA controller registers + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _ASM_PROC_DMACTL_REGS_H +#define _ASM_PROC_DMACTL_REGS_H + +#include <asm/cpu-regs.h> + +#ifdef __KERNEL__ + +/* DMA registers */ +#define DMxCTR(N) __SYSREG(0xd2000000 + ((N) * 0x100), u32) /* control reg */ +#define DMxCTR_BG 0x0000001f /* transfer request source */ +#define DMxCTR_BG_SOFT 0x00000000 /* - software source */ +#define DMxCTR_BG_SC0TX 0x00000002 /* - serial port 0 transmission */ +#define DMxCTR_BG_SC0RX 0x00000003 /* - serial port 0 reception */ +#define DMxCTR_BG_SC1TX 0x00000004 /* - serial port 1 transmission */ +#define DMxCTR_BG_SC1RX 0x00000005 /* - serial port 1 reception */ +#define DMxCTR_BG_SC2TX 0x00000006 /* - serial port 2 transmission */ +#define DMxCTR_BG_SC2RX 0x00000007 /* - serial port 2 reception */ +#define DMxCTR_BG_TM0UFLOW 0x00000008 /* - timer 0 underflow */ +#define DMxCTR_BG_TM1UFLOW 0x00000009 /* - timer 1 underflow */ +#define DMxCTR_BG_TM2UFLOW 0x0000000a /* - timer 2 underflow */ +#define DMxCTR_BG_TM3UFLOW 0x0000000b /* - timer 3 underflow */ +#define DMxCTR_BG_TM6ACMPCAP 0x0000000c /* - timer 6A compare/capture */ +#define DMxCTR_BG_AFE 0x0000000d /* - analogue front-end interrupt source */ +#define DMxCTR_BG_ADC 0x0000000e /* - A/D conversion end interrupt source */ +#define DMxCTR_BG_IRDA 0x0000000f /* - IrDA interrupt source */ +#define DMxCTR_BG_RTC 0x00000010 /* - RTC interrupt source */ +#define DMxCTR_BG_XIRQ0 0x00000011 /* - XIRQ0 pin interrupt source */ +#define DMxCTR_BG_XIRQ1 0x00000012 /* - XIRQ1 pin interrupt source */ +#define DMxCTR_BG_XDMR0 0x00000013 /* - external request 0 source (XDMR0 pin) */ +#define DMxCTR_BG_XDMR1 0x00000014 /* - external request 1 source (XDMR1 pin) */ +#define DMxCTR_SAM 0x000000e0 /* DMA transfer src addr mode */ +#define DMxCTR_SAM_INCR 0x00000000 /* - increment */ +#define DMxCTR_SAM_DECR 0x00000020 /* - decrement */ +#define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */ +#define DMxCTR_DAM 0x00000000 /* DMA transfer dest addr mode */ +#define DMxCTR_DAM_INCR 0x00000000 /* - increment */ +#define DMxCTR_DAM_DECR 0x00000100 /* - decrement */ +#define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */ +#define DMxCTR_TM 0x00001800 /* DMA transfer mode */ +#define DMxCTR_TM_BATCH 0x00000000 /* - batch transfer */ +#define DMxCTR_TM_INTERM 0x00001000 /* - intermittent transfer */ +#define DMxCTR_UT 0x00006000 /* DMA transfer unit */ +#define DMxCTR_UT_1 0x00000000 /* - 1 byte */ +#define DMxCTR_UT_2 0x00002000 /* - 2 byte */ +#define DMxCTR_UT_4 0x00004000 /* - 4 byte */ +#define DMxCTR_UT_16 0x00006000 /* - 16 byte */ +#define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */ +#define DMxCTR_RQM 0x00060000 /* external request input source mode */ +#define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */ +#define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */ +#define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */ +#define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */ +#define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */ +#define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */ + +#define DMxSRC(N) __SYSREG(0xd2000004 + ((N) * 0x100), u32) /* control reg */ + +#define DMxDST(N) __SYSREG(0xd2000008 + ((N) * 0x100), u32) /* src addr reg */ + +#define DMxSIZ(N) __SYSREG(0xd200000c + ((N) * 0x100), u32) /* dest addr reg */ +#define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */ + +#define DMxCYC(N) __SYSREG(0xd2000010 + ((N) * 0x100), u32) /* intermittent + * size reg */ +#define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */ + +#define DM0IRQ 16 /* DMA channel 0 complete IRQ */ +#define DM1IRQ 17 /* DMA channel 1 complete IRQ */ +#define DM2IRQ 18 /* DMA channel 2 complete IRQ */ +#define DM3IRQ 19 /* DMA channel 3 complete IRQ */ + +#define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */ +#define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */ +#define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */ +#define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */ + +#ifndef __ASSEMBLY__ + +struct mn10300_dmactl_regs { + u32 ctr; + const void *src; + void *dst; + u32 siz; + u32 cyc; +} __attribute__((aligned(0x100))); + +#endif /* __ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#endif /* _ASM_PROC_DMACTL_REGS_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h new file mode 100644 index 000000000..f537801a4 --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h @@ -0,0 +1,29 @@ +#ifndef _ASM_PROC_INTCTL_REGS_H +#define _ASM_PROC_INTCTL_REGS_H + +#ifndef _ASM_INTCTL_REGS_H +# error "please don't include this file directly" +#endif + +/* intr acceptance group reg */ +#define IAGR __SYSREG(0xd4000100, u16) + +/* group number register */ +#define IAGR_GN 0x00fc + +#define __GET_XIRQ_TRIGGER(X, Z) (((Z) >> ((X) * 2)) & 3) + +#define __SET_XIRQ_TRIGGER(X, Y, Z) \ +({ \ + typeof(Z) x = (Z); \ + x &= ~(3 << ((X) * 2)); \ + x |= ((Y) & 3) << ((X) * 2); \ + (Z) = x; \ +}) + +/* external pin intr spec reg */ +#define EXTMD __SYSREG(0xd4000200, u16) +#define GET_XIRQ_TRIGGER(X) __GET_XIRQ_TRIGGER(X, EXTMD) +#define SET_XIRQ_TRIGGER(X, Y) __SET_XIRQ_TRIGGER(X, Y, EXTMD) + +#endif /* _ASM_PROC_INTCTL_REGS_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/irq.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/irq.h new file mode 100644 index 000000000..aa6ee8f98 --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/irq.h @@ -0,0 +1,34 @@ +/* MN103E010 On-board interrupt controller numbers + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _ASM_PROC_IRQ_H +#define _ASM_PROC_IRQ_H + +#ifdef __KERNEL__ + +#define GxICR_NUM_IRQS 42 + +#define GxICR_NUM_XIRQS 8 + +#define XIRQ0 34 +#define XIRQ1 35 +#define XIRQ2 36 +#define XIRQ3 37 +#define XIRQ4 38 +#define XIRQ5 39 +#define XIRQ6 40 +#define XIRQ7 41 + +#define XIRQ2IRQ(num) (XIRQ0 + num) + +#endif /* __KERNEL__ */ + +#endif /* _ASM_PROC_IRQ_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/include/proc/proc.h b/kernel/arch/mn10300/proc-mn103e010/include/proc/proc.h new file mode 100644 index 000000000..39c4f8e7d --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/include/proc/proc.h @@ -0,0 +1,18 @@ +/* MN103E010 Processor description + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _ASM_PROC_PROC_H +#define _ASM_PROC_PROC_H + +#define PROCESSOR_VENDOR_NAME "Panasonic" +#define PROCESSOR_MODEL_NAME "mn103e010" + +#endif /* _ASM_PROC_PROC_H */ diff --git a/kernel/arch/mn10300/proc-mn103e010/proc-init.c b/kernel/arch/mn10300/proc-mn103e010/proc-init.c new file mode 100644 index 000000000..27b97980d --- /dev/null +++ b/kernel/arch/mn10300/proc-mn103e010/proc-init.c @@ -0,0 +1,112 @@ +/* MN103E010 Processor initialisation + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#include <linux/kernel.h> +#include <asm/fpu.h> +#include <asm/rtc.h> +#include <asm/busctl-regs.h> + +/* + * initialise the on-silicon processor peripherals + */ +asmlinkage void __init processor_init(void) +{ + int loop; + + /* set up the exception table first */ + for (loop = 0x000; loop < 0x400; loop += 8) + __set_intr_stub(loop, __common_exception); + + __set_intr_stub(EXCEP_ITLBMISS, itlb_miss); + __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss); + __set_intr_stub(EXCEP_IAERROR, itlb_aerror); + __set_intr_stub(EXCEP_DAERROR, dtlb_aerror); + __set_intr_stub(EXCEP_BUSERROR, raw_bus_error); + __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault); + __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled); + __set_intr_stub(EXCEP_SYSCALL0, system_call); + + __set_intr_stub(EXCEP_NMI, nmi_handler); + __set_intr_stub(EXCEP_WDT, nmi_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler); + __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler); + + IVAR0 = EXCEP_IRQ_LEVEL0; + IVAR1 = EXCEP_IRQ_LEVEL1; + IVAR2 = EXCEP_IRQ_LEVEL2; + IVAR3 = EXCEP_IRQ_LEVEL3; + IVAR4 = EXCEP_IRQ_LEVEL4; + IVAR5 = EXCEP_IRQ_LEVEL5; + IVAR6 = EXCEP_IRQ_LEVEL6; + + mn10300_dcache_flush_inv(); + mn10300_icache_inv(); + + /* disable all interrupts and set to priority 6 (lowest) */ + for (loop = 0; loop < NR_IRQS; loop++) + GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; + + /* clear the timers */ + TM0MD = 0; + TM1MD = 0; + TM2MD = 0; + TM3MD = 0; + TM4MD = 0; + TM5MD = 0; + TM6MD = 0; + TM6MDA = 0; + TM6MDB = 0; + TM7MD = 0; + TM8MD = 0; + TM9MD = 0; + TM10MD = 0; + TM11MD = 0; + + calibrate_clock(); +} + +/* + * determine the memory size and base from the memory controller regs + */ +void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size) +{ + unsigned long base, size; + + *mem_base = 0; + *mem_size = 0; + + base = SDBASE(0); + if (base & SDBASE_CE) { + size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; + size = ~size + 1; + base &= SDBASE_CBA; + + printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base); + *mem_size += size; + *mem_base = base; + } + + base = SDBASE(1); + if (base & SDBASE_CE) { + size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; + size = ~size + 1; + base &= SDBASE_CBA; + + printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base); + *mem_size += size; + if (*mem_base == 0) + *mem_base = base; + } +} |