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-rw-r--r--include/asm-arm/arch-rpc/acornfb.h140
-rw-r--r--include/asm-arm/arch-rpc/debug-macro.S35
-rw-r--r--include/asm-arm/arch-rpc/dma.h33
-rw-r--r--include/asm-arm/arch-rpc/entry-macro.S3
-rw-r--r--include/asm-arm/arch-rpc/hardware.h86
-rw-r--r--include/asm-arm/arch-rpc/io.h257
-rw-r--r--include/asm-arm/arch-rpc/irqs.h46
-rw-r--r--include/asm-arm/arch-rpc/memory.h33
-rw-r--r--include/asm-arm/arch-rpc/param.h3
-rw-r--r--include/asm-arm/arch-rpc/system.h27
-rw-r--r--include/asm-arm/arch-rpc/timex.h17
-rw-r--r--include/asm-arm/arch-rpc/uncompress.h155
-rw-r--r--include/asm-arm/arch-rpc/vmalloc.h21
13 files changed, 856 insertions, 0 deletions
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 <asm/hardware/entry-macro-iomd.S>
+
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 <asm/arch/memory.h>
+
+#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 <asm/arch/hardware.h>
+#include <asm/hardware/iomd.h>
+#include <asm/io.h>
+
+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 <asm/hardware.h>
+#include <asm/io.h>
+
+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)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 09:17:46 +0000