From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-arm/arch-rpc/acornfb.h | 140 ++++++++++++++++++ include/asm-arm/arch-rpc/debug-macro.S | 35 +++++ include/asm-arm/arch-rpc/dma.h | 33 +++++ include/asm-arm/arch-rpc/entry-macro.S | 3 + include/asm-arm/arch-rpc/hardware.h | 86 +++++++++++ include/asm-arm/arch-rpc/io.h | 257 +++++++++++++++++++++++++++++++++ include/asm-arm/arch-rpc/irqs.h | 46 ++++++ include/asm-arm/arch-rpc/memory.h | 33 +++++ include/asm-arm/arch-rpc/param.h | 3 + include/asm-arm/arch-rpc/system.h | 27 ++++ include/asm-arm/arch-rpc/timex.h | 17 +++ include/asm-arm/arch-rpc/uncompress.h | 155 ++++++++++++++++++++ include/asm-arm/arch-rpc/vmalloc.h | 21 +++ 13 files changed, 856 insertions(+) create mode 100644 include/asm-arm/arch-rpc/acornfb.h create mode 100644 include/asm-arm/arch-rpc/debug-macro.S create mode 100644 include/asm-arm/arch-rpc/dma.h create mode 100644 include/asm-arm/arch-rpc/entry-macro.S create mode 100644 include/asm-arm/arch-rpc/hardware.h create mode 100644 include/asm-arm/arch-rpc/io.h create mode 100644 include/asm-arm/arch-rpc/irqs.h create mode 100644 include/asm-arm/arch-rpc/memory.h create mode 100644 include/asm-arm/arch-rpc/param.h create mode 100644 include/asm-arm/arch-rpc/system.h create mode 100644 include/asm-arm/arch-rpc/timex.h create mode 100644 include/asm-arm/arch-rpc/uncompress.h create mode 100644 include/asm-arm/arch-rpc/vmalloc.h (limited to 'include/asm-arm/arch-rpc') diff --git a/include/asm-arm/arch-rpc/acornfb.h b/include/asm-arm/arch-rpc/acornfb.h new file mode 100644 index 00000000000..ecb7733a094 --- /dev/null +++ b/include/asm-arm/arch-rpc/acornfb.h @@ -0,0 +1,140 @@ +/* + * linux/include/asm-arm/arch-rpc/acornfb.h + * + * Copyright (C) 1999 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * AcornFB architecture specific code + */ + +#define acornfb_bandwidth(var) ((var)->pixclock * 8 / (var)->bits_per_pixel) + +static inline int +acornfb_valid_pixrate(struct fb_var_screeninfo *var) +{ + u_long limit; + + if (!var->pixclock) + return 0; + + /* + * Limits below are taken from RISC OS bandwidthlimit file + */ + if (current_par.using_vram) { + if (current_par.vram_half_sam == 2048) + limit = 6578; + else + limit = 13157; + } else { + limit = 26315; + } + + return acornfb_bandwidth(var) >= limit; +} + +/* + * Try to find the best PLL parameters for the pixel clock. + * This algorithm seems to give best predictable results, + * and produces the same values as detailed in the VIDC20 + * data sheet. + */ +static inline u_int +acornfb_vidc20_find_pll(u_int pixclk) +{ + u_int r, best_r = 2, best_v = 2; + int best_d = 0x7fffffff; + + for (r = 2; r <= 32; r++) { + u_int rr, v, p; + int d; + + rr = 41667 * r; + + v = (rr + pixclk / 2) / pixclk; + + if (v > 32 || v < 2) + continue; + + p = (rr + v / 2) / v; + + d = pixclk - p; + + if (d < 0) + d = -d; + + if (d < best_d) { + best_d = d; + best_v = v - 1; + best_r = r - 1; + } + + if (d == 0) + break; + } + + return best_v << 8 | best_r; +} + +static inline void +acornfb_vidc20_find_rates(struct vidc_timing *vidc, + struct fb_var_screeninfo *var) +{ + u_int div; + + /* Select pixel-clock divisor to keep PLL in range */ + div = var->pixclock / 9090; /*9921*/ + + /* Limit divisor */ + if (div == 0) + div = 1; + if (div > 8) + div = 8; + + /* Encode divisor to VIDC20 setting */ + switch (div) { + case 1: vidc->control |= VIDC20_CTRL_PIX_CK; break; + case 2: vidc->control |= VIDC20_CTRL_PIX_CK2; break; + case 3: vidc->control |= VIDC20_CTRL_PIX_CK3; break; + case 4: vidc->control |= VIDC20_CTRL_PIX_CK4; break; + case 5: vidc->control |= VIDC20_CTRL_PIX_CK5; break; + case 6: vidc->control |= VIDC20_CTRL_PIX_CK6; break; + case 7: vidc->control |= VIDC20_CTRL_PIX_CK7; break; + case 8: vidc->control |= VIDC20_CTRL_PIX_CK8; break; + } + + /* + * With VRAM, the FIFO can be set to the highest possible setting + * because there are no latency considerations for other memory + * accesses. However, in 64 bit bus mode the FIFO preload value + * must not be set to VIDC20_CTRL_FIFO_28 because this will let + * the FIFO overflow. See VIDC20 manual page 33 (6.0 Setting the + * FIFO preload value). + */ + if (current_par.using_vram) { + if (current_par.vram_half_sam == 2048) + vidc->control |= VIDC20_CTRL_FIFO_24; + else + vidc->control |= VIDC20_CTRL_FIFO_28; + } else { + unsigned long bandwidth = acornfb_bandwidth(var); + + /* Encode bandwidth as VIDC20 setting */ + if (bandwidth > 33334) /* < 30.0MB/s */ + vidc->control |= VIDC20_CTRL_FIFO_16; + else if (bandwidth > 26666) /* < 37.5MB/s */ + vidc->control |= VIDC20_CTRL_FIFO_20; + else if (bandwidth > 22222) /* < 45.0MB/s */ + vidc->control |= VIDC20_CTRL_FIFO_24; + else /* > 45.0MB/s */ + vidc->control |= VIDC20_CTRL_FIFO_28; + } + + /* Find the PLL values */ + vidc->pll_ctl = acornfb_vidc20_find_pll(var->pixclock / div); +} + +#define acornfb_default_control() (VIDC20_CTRL_PIX_VCLK) +#define acornfb_default_econtrol() (VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3)) diff --git a/include/asm-arm/arch-rpc/debug-macro.S b/include/asm-arm/arch-rpc/debug-macro.S new file mode 100644 index 00000000000..0711828164c --- /dev/null +++ b/include/asm-arm/arch-rpc/debug-macro.S @@ -0,0 +1,35 @@ +/* linux/include/asm-arm/arch-rpc/debug-macro.S + * + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + + .macro addruart,rx + mov \rx, #0xe0000000 + orr \rx, \rx, #0x00010000 + orr \rx, \rx, #0x00000fe0 + .endm + + .macro senduart,rd,rx + strb \rd, [\rx] + .endm + + .macro busyuart,rd,rx +1001: ldrb \rd, [\rx, #0x14] + and \rd, \rd, #0x60 + teq \rd, #0x60 + bne 1001b + .endm + + .macro waituart,rd,rx +1001: ldrb \rd, [\rx, #0x18] + tst \rd, #0x10 + beq 1001b + .endm diff --git a/include/asm-arm/arch-rpc/dma.h b/include/asm-arm/arch-rpc/dma.h new file mode 100644 index 00000000000..d24a27e30b9 --- /dev/null +++ b/include/asm-arm/arch-rpc/dma.h @@ -0,0 +1,33 @@ +/* + * linux/include/asm-arm/arch-rpc/dma.h + * + * Copyright (C) 1997 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_ARCH_DMA_H +#define __ASM_ARCH_DMA_H + +/* + * This is the maximum DMA address that can be DMAd to. + * There should not be more than (0xd0000000 - 0xc0000000) + * bytes of RAM. + */ +#define MAX_DMA_ADDRESS 0xd0000000 +#define MAX_DMA_CHANNELS 8 + +#define DMA_0 0 +#define DMA_1 1 +#define DMA_2 2 +#define DMA_3 3 +#define DMA_S0 4 +#define DMA_S1 5 +#define DMA_VIRTUAL_FLOPPY 6 +#define DMA_VIRTUAL_SOUND 7 + +#define DMA_FLOPPY DMA_VIRTUAL_FLOPPY + +#endif /* _ASM_ARCH_DMA_H */ + diff --git a/include/asm-arm/arch-rpc/entry-macro.S b/include/asm-arm/arch-rpc/entry-macro.S new file mode 100644 index 00000000000..686f413f82d --- /dev/null +++ b/include/asm-arm/arch-rpc/entry-macro.S @@ -0,0 +1,3 @@ + +#include + diff --git a/include/asm-arm/arch-rpc/hardware.h b/include/asm-arm/arch-rpc/hardware.h new file mode 100644 index 00000000000..be9754a05c1 --- /dev/null +++ b/include/asm-arm/arch-rpc/hardware.h @@ -0,0 +1,86 @@ +/* + * linux/include/asm-arm/arch-rpc/hardware.h + * + * Copyright (C) 1996-1999 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file contains the hardware definitions of the RiscPC series machines. + */ +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include + +#ifndef __ASSEMBLY__ +#define IOMEM(x) ((void __iomem *)(x)) +#else +#define IOMEM(x) x +#endif /* __ASSEMBLY__ */ + +/* + * What hardware must be present + */ +#define HAS_IOMD +#define HAS_VIDC20 + +/* Hardware addresses of major areas. + * *_START is the physical address + * *_SIZE is the size of the region + * *_BASE is the virtual address + */ +#define RAM_SIZE 0x10000000 +#define RAM_START 0x10000000 + +#define EASI_SIZE 0x08000000 /* EASI I/O */ +#define EASI_START 0x08000000 +#define EASI_BASE 0xe5000000 + +#define IO_START 0x03000000 /* I/O */ +#define IO_SIZE 0x01000000 +#define IO_BASE IOMEM(0xe0000000) + +#define SCREEN_START 0x02000000 /* VRAM */ +#define SCREEN_END 0xdfc00000 +#define SCREEN_BASE 0xdf800000 + +#define FLUSH_BASE 0xdf000000 +#define UNCACHEABLE_ADDR 0xdf010000 + +/* + * IO Addresses + */ +#define VIDC_BASE (void __iomem *)0xe0400000 +#define EXPMASK_BASE 0xe0360000 +#define IOMD_BASE IOMEM(0xe0200000) +#define IOC_BASE IOMEM(0xe0200000) +#define PCIO_BASE IOMEM(0xe0010000) +#define FLOPPYDMA_BASE IOMEM(0xe002a000) + +#define FLUSH_BASE_PHYS 0x00000000 /* ROM */ + +#define vidc_writel(val) __raw_writel(val, VIDC_BASE) + +#define IO_EC_EASI_BASE 0x81400000 +#define IO_EC_IOC4_BASE 0x8009c000 +#define IO_EC_IOC_BASE 0x80090000 +#define IO_EC_MEMC8_BASE 0x8000ac00 +#define IO_EC_MEMC_BASE 0x80000000 + +#define NETSLOT_BASE 0x0302b000 +#define NETSLOT_SIZE 0x00001000 + +#define PODSLOT_IOC0_BASE 0x03240000 +#define PODSLOT_IOC4_BASE 0x03270000 +#define PODSLOT_IOC_SIZE (1 << 14) +#define PODSLOT_MEMC_BASE 0x03000000 +#define PODSLOT_MEMC_SIZE (1 << 14) +#define PODSLOT_EASI_BASE 0x08000000 +#define PODSLOT_EASI_SIZE (1 << 24) + +#define EXPMASK_STATUS (EXPMASK_BASE + 0x00) +#define EXPMASK_ENABLE (EXPMASK_BASE + 0x04) + +#endif diff --git a/include/asm-arm/arch-rpc/io.h b/include/asm-arm/arch-rpc/io.h new file mode 100644 index 00000000000..24453c405a8 --- /dev/null +++ b/include/asm-arm/arch-rpc/io.h @@ -0,0 +1,257 @@ +/* + * linux/include/asm-arm/arch-rpc/io.h + * + * Copyright (C) 1997 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 06-Dec-1997 RMK Created. + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* + * GCC is totally crap at loading/storing data. We try to persuade it + * to do the right thing by using these whereever possible instead of + * the above. + */ +#define __arch_base_getb(b,o) \ + ({ \ + unsigned int __v, __r = (b); \ + __asm__ __volatile__( \ + "ldrb %0, [%1, %2]" \ + : "=r" (__v) \ + : "r" (__r), "Ir" (o)); \ + __v; \ + }) + +#define __arch_base_getl(b,o) \ + ({ \ + unsigned int __v, __r = (b); \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2]" \ + : "=r" (__v) \ + : "r" (__r), "Ir" (o)); \ + __v; \ + }) + +#define __arch_base_putb(v,b,o) \ + ({ \ + unsigned int __r = (b); \ + __asm__ __volatile__( \ + "strb %0, [%1, %2]" \ + : \ + : "r" (v), "r" (__r), "Ir" (o));\ + }) + +#define __arch_base_putl(v,b,o) \ + ({ \ + unsigned int __r = (b); \ + __asm__ __volatile__( \ + "str %0, [%1, %2]" \ + : \ + : "r" (v), "r" (__r), "Ir" (o));\ + }) + +/* + * We use two different types of addressing - PC style addresses, and ARM + * addresses. PC style accesses the PC hardware with the normal PC IO + * addresses, eg 0x3f8 for serial#1. ARM addresses are 0x80000000+ + * and are translated to the start of IO. Note that all addresses are + * shifted left! + */ +#define __PORT_PCIO(x) (!((x) & 0x80000000)) + +/* + * Dynamic IO functions. + */ +static inline void __outb (unsigned int value, unsigned int port) +{ + unsigned long temp; + __asm__ __volatile__( + "tst %2, #0x80000000\n\t" + "mov %0, %4\n\t" + "addeq %0, %0, %3\n\t" + "strb %1, [%0, %2, lsl #2] @ outb" + : "=&r" (temp) + : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) + : "cc"); +} + +static inline void __outw (unsigned int value, unsigned int port) +{ + unsigned long temp; + __asm__ __volatile__( + "tst %2, #0x80000000\n\t" + "mov %0, %4\n\t" + "addeq %0, %0, %3\n\t" + "str %1, [%0, %2, lsl #2] @ outw" + : "=&r" (temp) + : "r" (value|value<<16), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) + : "cc"); +} + +static inline void __outl (unsigned int value, unsigned int port) +{ + unsigned long temp; + __asm__ __volatile__( + "tst %2, #0x80000000\n\t" + "mov %0, %4\n\t" + "addeq %0, %0, %3\n\t" + "str %1, [%0, %2, lsl #2] @ outl" + : "=&r" (temp) + : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) + : "cc"); +} + +#define DECLARE_DYN_IN(sz,fnsuffix,instr) \ +static inline unsigned sz __in##fnsuffix (unsigned int port) \ +{ \ + unsigned long temp, value; \ + __asm__ __volatile__( \ + "tst %2, #0x80000000\n\t" \ + "mov %0, %4\n\t" \ + "addeq %0, %0, %3\n\t" \ + "ldr" instr " %1, [%0, %2, lsl #2] @ in" #fnsuffix \ + : "=&r" (temp), "=r" (value) \ + : "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) \ + : "cc"); \ + return (unsigned sz)value; \ +} + +static inline void __iomem *__ioaddr(unsigned int port) +{ + void __iomem *ret; + if (__PORT_PCIO(port)) + ret = PCIO_BASE; + else + ret = IO_BASE; + return ret + (port << 2); +} + +#define DECLARE_IO(sz,fnsuffix,instr) \ + DECLARE_DYN_IN(sz,fnsuffix,instr) + +DECLARE_IO(char,b,"b") +DECLARE_IO(short,w,"") +DECLARE_IO(int,l,"") + +#undef DECLARE_IO +#undef DECLARE_DYN_IN + +/* + * Constant address IO functions + * + * These have to be macros for the 'J' constraint to work - + * +/-4096 immediate operand. + */ +#define __outbc(value,port) \ +({ \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "strb %0, [%1, %2] @ outbc" \ + : : "r" (value), "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "strb %0, [%1, %2] @ outbc" \ + : : "r" (value), "r" (IO_BASE), "r" ((port) << 2)); \ +}) + +#define __inbc(port) \ +({ \ + unsigned char result; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "ldrb %0, [%1, %2] @ inbc" \ + : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "ldrb %0, [%1, %2] @ inbc" \ + : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \ + result; \ +}) + +#define __outwc(value,port) \ +({ \ + unsigned long __v = value; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "str %0, [%1, %2] @ outwc" \ + : : "r" (__v|__v<<16), "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "str %0, [%1, %2] @ outwc" \ + : : "r" (__v|__v<<16), "r" (IO_BASE), "r" ((port) << 2)); \ +}) + +#define __inwc(port) \ +({ \ + unsigned short result; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2] @ inwc" \ + : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2] @ inwc" \ + : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \ + result & 0xffff; \ +}) + +#define __outlc(value,port) \ +({ \ + unsigned long __v = value; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "str %0, [%1, %2] @ outlc" \ + : : "r" (__v), "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "str %0, [%1, %2] @ outlc" \ + : : "r" (__v), "r" (IO_BASE), "r" ((port) << 2)); \ +}) + +#define __inlc(port) \ +({ \ + unsigned long result; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2] @ inlc" \ + : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \ + else \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2] @ inlc" \ + : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \ + result; \ +}) + +#define __ioaddrc(port) \ + ((__PORT_PCIO(port) ? PCIO_BASE : IO_BASE) + ((port) << 2)) + +#define inb(p) (__builtin_constant_p((p)) ? __inbc(p) : __inb(p)) +#define inw(p) (__builtin_constant_p((p)) ? __inwc(p) : __inw(p)) +#define inl(p) (__builtin_constant_p((p)) ? __inlc(p) : __inl(p)) +#define outb(v,p) (__builtin_constant_p((p)) ? __outbc(v,p) : __outb(v,p)) +#define outw(v,p) (__builtin_constant_p((p)) ? __outwc(v,p) : __outw(v,p)) +#define outl(v,p) (__builtin_constant_p((p)) ? __outlc(v,p) : __outl(v,p)) +#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p)) +/* the following macro is deprecated */ +#define ioaddr(port) ((unsigned long)__ioaddr((port))) + +#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l) +#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l) + +#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l) +#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l) + +/* + * 1:1 mapping for ioremapped regions. + */ +#define __mem_pci(x) (x) + +#endif diff --git a/include/asm-arm/arch-rpc/irqs.h b/include/asm-arm/arch-rpc/irqs.h new file mode 100644 index 00000000000..27c35b05b27 --- /dev/null +++ b/include/asm-arm/arch-rpc/irqs.h @@ -0,0 +1,46 @@ +/* + * linux/include/asm-arm/arch-rpc/irqs.h + * + * Copyright (C) 1996 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#define IRQ_PRINTER 0 +#define IRQ_BATLOW 1 +#define IRQ_FLOPPYINDEX 2 +#define IRQ_VSYNCPULSE 3 +#define IRQ_POWERON 4 +#define IRQ_TIMER0 5 +#define IRQ_TIMER1 6 +#define IRQ_IMMEDIATE 7 +#define IRQ_EXPCARDFIQ 8 +#define IRQ_HARDDISK 9 +#define IRQ_SERIALPORT 10 +#define IRQ_FLOPPYDISK 12 +#define IRQ_EXPANSIONCARD 13 +#define IRQ_KEYBOARDTX 14 +#define IRQ_KEYBOARDRX 15 + +#define IRQ_DMA0 16 +#define IRQ_DMA1 17 +#define IRQ_DMA2 18 +#define IRQ_DMA3 19 +#define IRQ_DMAS0 20 +#define IRQ_DMAS1 21 + +#define FIQ_FLOPPYDATA 0 +#define FIQ_ECONET 2 +#define FIQ_SERIALPORT 4 +#define FIQ_EXPANSIONCARD 6 +#define FIQ_FORCE 7 + +/* + * This is the offset of the FIQ "IRQ" numbers + */ +#define FIQ_START 64 + +#define IRQ_TIMER IRQ_TIMER0 + diff --git a/include/asm-arm/arch-rpc/memory.h b/include/asm-arm/arch-rpc/memory.h new file mode 100644 index 00000000000..33fc75cdead --- /dev/null +++ b/include/asm-arm/arch-rpc/memory.h @@ -0,0 +1,33 @@ +/* + * linux/include/asm-arm/arch-rpc/memory.h + * + * Copyright (C) 1996,1997,1998 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Changelog: + * 20-Oct-1996 RMK Created + * 31-Dec-1997 RMK Fixed definitions to reduce warnings + * 11-Jan-1998 RMK Uninlined to reduce hits on cache + * 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt + * 21-Mar-1999 RMK Renamed to memory.h + * RMK Added TASK_SIZE and PAGE_OFFSET + */ +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +/* + * Physical DRAM offset. + */ +#define PHYS_OFFSET (0x10000000UL) + +/* + * These are exactly the same on the RiscPC as the + * physical memory view. + */ +#define __virt_to_bus(x) __virt_to_phys(x) +#define __bus_to_virt(x) __phys_to_virt(x) + +#endif diff --git a/include/asm-arm/arch-rpc/param.h b/include/asm-arm/arch-rpc/param.h new file mode 100644 index 00000000000..721dcd65885 --- /dev/null +++ b/include/asm-arm/arch-rpc/param.h @@ -0,0 +1,3 @@ +/* + * linux/include/asm-arm/arch-rpc/param.h + */ diff --git a/include/asm-arm/arch-rpc/system.h b/include/asm-arm/arch-rpc/system.h new file mode 100644 index 00000000000..ca3277d1d5e --- /dev/null +++ b/include/asm-arm/arch-rpc/system.h @@ -0,0 +1,27 @@ +/* + * linux/include/asm-arm/arch-rpc/system.h + * + * Copyright (C) 1996-1999 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include + +static inline void arch_idle(void) +{ + cpu_do_idle(); +} + +static inline void arch_reset(char mode) +{ + iomd_writeb(0, IOMD_ROMCR0); + + /* + * Jump into the ROM + */ + cpu_reset(0); +} diff --git a/include/asm-arm/arch-rpc/timex.h b/include/asm-arm/arch-rpc/timex.h new file mode 100644 index 00000000000..ed7df64d960 --- /dev/null +++ b/include/asm-arm/arch-rpc/timex.h @@ -0,0 +1,17 @@ +/* + * linux/include/asm-arm/arch-rpc/timex.h + * + * Copyright (C) 1997, 1998 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * RiscPC architecture timex specifications + */ + +/* + * On the RiscPC, the clock ticks at 2MHz. + */ +#define CLOCK_TICK_RATE 2000000 + diff --git a/include/asm-arm/arch-rpc/uncompress.h b/include/asm-arm/arch-rpc/uncompress.h new file mode 100644 index 00000000000..43035fec64d --- /dev/null +++ b/include/asm-arm/arch-rpc/uncompress.h @@ -0,0 +1,155 @@ +/* + * linux/include/asm-arm/arch-rpc/uncompress.h + * + * Copyright (C) 1996 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#define VIDMEM ((char *)SCREEN_START) + +#include +#include + +int video_num_columns, video_num_lines, video_size_row; +int white, bytes_per_char_h; +extern unsigned long con_charconvtable[256]; + +struct param_struct { + unsigned long page_size; + unsigned long nr_pages; + unsigned long ramdisk_size; + unsigned long mountrootrdonly; + unsigned long rootdev; + unsigned long video_num_cols; + unsigned long video_num_rows; + unsigned long video_x; + unsigned long video_y; + unsigned long memc_control_reg; + unsigned char sounddefault; + unsigned char adfsdrives; + unsigned char bytes_per_char_h; + unsigned char bytes_per_char_v; + unsigned long unused[256/4-11]; +}; + +static const unsigned long palette_4[16] = { + 0x00000000, + 0x000000cc, + 0x0000cc00, /* Green */ + 0x0000cccc, /* Yellow */ + 0x00cc0000, /* Blue */ + 0x00cc00cc, /* Magenta */ + 0x00cccc00, /* Cyan */ + 0x00cccccc, /* White */ + 0x00000000, + 0x000000ff, + 0x0000ff00, + 0x0000ffff, + 0x00ff0000, + 0x00ff00ff, + 0x00ffff00, + 0x00ffffff +}; + +#define palette_setpixel(p) *(unsigned long *)(IO_START+0x00400000) = 0x10000000|((p) & 255) +#define palette_write(v) *(unsigned long *)(IO_START+0x00400000) = 0x00000000|((v) & 0x00ffffff) + +/* + * params_phys is a linker defined symbol - see + * arch/arm/boot/compressed/Makefile + */ +extern __attribute__((pure)) struct param_struct *params(void); +#define params (params()) + +#ifndef STANDALONE_DEBUG +/* + * This does not append a newline + */ +static void putstr(const char *s) +{ + extern void ll_write_char(char *, char c, char white); + int x,y; + unsigned char c; + char *ptr; + + x = params->video_x; + y = params->video_y; + + while ( ( c = *(unsigned char *)s++ ) != '\0' ) { + if ( c == '\n' ) { + x = 0; + if ( ++y >= video_num_lines ) { + y--; + } + } else { + ptr = VIDMEM + ((y*video_num_columns*params->bytes_per_char_v+x)*bytes_per_char_h); + ll_write_char(ptr, c, white); + if ( ++x >= video_num_columns ) { + x = 0; + if ( ++y >= video_num_lines ) { + y--; + } + } + } + } + + params->video_x = x; + params->video_y = y; +} + +static void error(char *x); + +/* + * Setup for decompression + */ +static void arch_decomp_setup(void) +{ + int i; + + video_num_lines = params->video_num_rows; + video_num_columns = params->video_num_cols; + bytes_per_char_h = params->bytes_per_char_h; + video_size_row = video_num_columns * bytes_per_char_h; + if (bytes_per_char_h == 4) + for (i = 0; i < 256; i++) + con_charconvtable[i] = + (i & 128 ? 1 << 0 : 0) | + (i & 64 ? 1 << 4 : 0) | + (i & 32 ? 1 << 8 : 0) | + (i & 16 ? 1 << 12 : 0) | + (i & 8 ? 1 << 16 : 0) | + (i & 4 ? 1 << 20 : 0) | + (i & 2 ? 1 << 24 : 0) | + (i & 1 ? 1 << 28 : 0); + else + for (i = 0; i < 16; i++) + con_charconvtable[i] = + (i & 8 ? 1 << 0 : 0) | + (i & 4 ? 1 << 8 : 0) | + (i & 2 ? 1 << 16 : 0) | + (i & 1 ? 1 << 24 : 0); + + + palette_setpixel(0); + if (bytes_per_char_h == 1) { + palette_write (0); + palette_write (0x00ffffff); + for (i = 2; i < 256; i++) + palette_write (0); + white = 1; + } else { + for (i = 0; i < 256; i++) + palette_write (i < 16 ? palette_4[i] : 0); + white = 7; + } + + if (params->nr_pages * params->page_size < 4096*1024) error("<4M of mem\n"); +} +#endif + +/* + * nothing to do + */ +#define arch_decomp_wdog() diff --git a/include/asm-arm/arch-rpc/vmalloc.h b/include/asm-arm/arch-rpc/vmalloc.h new file mode 100644 index 00000000000..a13c27f37d7 --- /dev/null +++ b/include/asm-arm/arch-rpc/vmalloc.h @@ -0,0 +1,21 @@ +/* + * linux/include/asm-arm/arch-rpc/vmalloc.h + * + * Copyright (C) 1997 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Just any arbitrary offset to the start of the vmalloc VM area: the + * current 8MB value just means that there will be a 8MB "hole" after the + * physical memory until the kernel virtual memory starts. That means that + * any out-of-bounds memory accesses will hopefully be caught. + * The vmalloc() routines leaves a hole of 4kB between each vmalloced + * area for the same reason. ;) + */ +#define VMALLOC_OFFSET (8*1024*1024) +#define VMALLOC_START (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) +#define VMALLOC_END (PAGE_OFFSET + 0x1c000000) -- cgit v1.2.3