aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-arm/arch-shark
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-shark')
-rw-r--r--include/asm-arm/arch-shark/debug-macro.S31
-rw-r--r--include/asm-arm/arch-shark/dma.h18
-rw-r--r--include/asm-arm/arch-shark/entry-macro.S35
-rw-r--r--include/asm-arm/arch-shark/hardware.h57
-rw-r--r--include/asm-arm/arch-shark/io.h199
-rw-r--r--include/asm-arm/arch-shark/irqs.h13
-rw-r--r--include/asm-arm/arch-shark/memory.h42
-rw-r--r--include/asm-arm/arch-shark/param.h5
-rw-r--r--include/asm-arm/arch-shark/system.h28
-rw-r--r--include/asm-arm/arch-shark/timex.h7
-rw-r--r--include/asm-arm/arch-shark/uncompress.h60
-rw-r--r--include/asm-arm/arch-shark/vmalloc.h15
12 files changed, 510 insertions, 0 deletions
diff --git a/include/asm-arm/arch-shark/debug-macro.S b/include/asm-arm/arch-shark/debug-macro.S
new file mode 100644
index 000000000000..7cb37f78825e
--- /dev/null
+++ b/include/asm-arm/arch-shark/debug-macro.S
@@ -0,0 +1,31 @@
+/* linux/include/asm-arm/arch-shark/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, #0x000003f8
+ .endm
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx]
+ .endm
+
+ .macro busyuart,rd,rx
+ mov \rd, #0
+1001: add \rd, \rd, #1
+ teq \rd, #0x10000
+ bne 1001b
+ .endm
+
+ .macro waituart,rd,rx
+ .endm
diff --git a/include/asm-arm/arch-shark/dma.h b/include/asm-arm/arch-shark/dma.h
new file mode 100644
index 000000000000..fc985d5e62af
--- /dev/null
+++ b/include/asm-arm/arch-shark/dma.h
@@ -0,0 +1,18 @@
+/*
+ * linux/include/asm-arm/arch-shark/dma.h
+ *
+ * by Alexander Schulz
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+/* Use only the lowest 4MB, nothing else works.
+ * The rest is not DMAable. See dev / .properties
+ * in OpenFirmware.
+ */
+#define MAX_DMA_ADDRESS 0xC0400000
+#define MAX_DMA_CHANNELS 8
+#define DMA_ISA_CASCADE 4
+
+#endif /* _ASM_ARCH_DMA_H */
+
diff --git a/include/asm-arm/arch-shark/entry-macro.S b/include/asm-arm/arch-shark/entry-macro.S
new file mode 100644
index 000000000000..a924f27fb8d9
--- /dev/null
+++ b/include/asm-arm/arch-shark/entry-macro.S
@@ -0,0 +1,35 @@
+/*
+ * include/asm-arm/arch-shark/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Shark platform
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ mov r4, #0xe0000000
+
+ mov \irqstat, #0x0C
+ strb \irqstat, [r4, #0x20] @outb(0x0C, 0x20) /* Poll command */
+ ldrb \irqnr, [r4, #0x20] @irq = inb(0x20) & 7
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 43f
+ and \irqnr, \irqnr, #7
+ teq \irqnr, #2
+ bne 44f
+43: mov \irqstat, #0x0C
+ strb \irqstat, [r4, #0xa0] @outb(0x0C, 0xA0) /* Poll command */
+ ldrb \irqnr, [r4, #0xa0] @irq = (inb(0xA0) & 7) + 8
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 44f
+ and \irqnr, \irqnr, #7
+ add \irqnr, \irqnr, #8
+44: teq \irqstat, #0
+ .endm
+
diff --git a/include/asm-arm/arch-shark/hardware.h b/include/asm-arm/arch-shark/hardware.h
new file mode 100644
index 000000000000..4d35f8c154c3
--- /dev/null
+++ b/include/asm-arm/arch-shark/hardware.h
@@ -0,0 +1,57 @@
+/*
+ * linux/include/asm-arm/arch-shark/hardware.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * linux/include/asm-arm/arch-ebsa110/hardware.h
+ * Copyright (C) 1996-1999 Russell King.
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Mapping areas
+ */
+#define IO_BASE 0xe0000000
+
+/*
+ * RAM definitions
+ */
+#define FLUSH_BASE_PHYS 0x80000000
+
+#else
+
+#define IO_BASE 0
+
+#endif
+
+#define IO_SIZE 0x08000000
+#define IO_START 0x40000000
+#define ROMCARD_SIZE 0x08000000
+#define ROMCARD_START 0x10000000
+
+#define FLUSH_BASE 0xdf000000
+#define PCIO_BASE 0xe0000000
+
+
+/* defines for the Framebuffer */
+#define FB_START 0x06000000
+#define FB_SIZE 0x01000000
+
+#define UNCACHEABLE_ADDR 0xdf010000
+
+#define SEQUOIA_LED_GREEN (1<<6)
+#define SEQUOIA_LED_AMBER (1<<5)
+#define SEQUOIA_LED_BACK (1<<7)
+
+#define pcibios_assign_all_busses() 1
+
+#define PCIBIOS_MIN_IO 0x6000
+#define PCIBIOS_MIN_MEM 0x50000000
+#define PCIMEM_BASE 0xe8000000
+
+#endif
+
diff --git a/include/asm-arm/arch-shark/io.h b/include/asm-arm/arch-shark/io.h
new file mode 100644
index 000000000000..1e7f26bc2e1d
--- /dev/null
+++ b/include/asm-arm/arch-shark/io.h
@@ -0,0 +1,199 @@
+/*
+ * linux/include/asm-arm/arch-shark/io.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * linux/include/asm-arm/arch-ebsa110/io.h
+ * Copyright (C) 1997,1998 Russell King
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * 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.
+ */
+#define __PORT_PCIO(x) (!((x) & 0x80000000))
+
+/*
+ * Dynamic IO functions - let the compiler
+ * optimize the expressions
+ */
+#define DECLARE_DYN_OUT(fnsuffix,instr) \
+static inline void __out##fnsuffix (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" instr " %1, [%0, %2] @ out" #fnsuffix \
+ : "=&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] @ in" #fnsuffix \
+ : "=&r" (temp), "=r" (value) \
+ : "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) \
+ : "cc"); \
+ return (unsigned sz)value; \
+}
+
+static inline unsigned int __ioaddr (unsigned int port) \
+{ \
+ if (__PORT_PCIO(port)) \
+ return (unsigned int)(PCIO_BASE + (port)); \
+ else \
+ return (unsigned int)(IO_BASE + (port)); \
+}
+
+#define DECLARE_IO(sz,fnsuffix,instr) \
+ DECLARE_DYN_OUT(fnsuffix,instr) \
+ DECLARE_DYN_IN(sz,fnsuffix,instr)
+
+DECLARE_IO(char,b,"b")
+DECLARE_IO(short,w,"h")
+DECLARE_IO(long,l,"")
+
+#undef DECLARE_IO
+#undef DECLARE_DYN_OUT
+#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)); \
+ else \
+ __asm__ __volatile__( \
+ "strb %0, [%1, %2] @ outbc" \
+ : : "r" (value), "r" (IO_BASE), "r" (port)); \
+})
+
+#define __inbc(port) \
+({ \
+ unsigned char result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldrb %0, [%1, %2] @ inbc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" (port)); \
+ else \
+ __asm__ __volatile__( \
+ "ldrb %0, [%1, %2] @ inbc" \
+ : "=r" (result) : "r" (IO_BASE), "r" (port)); \
+ result; \
+})
+
+#define __outwc(value,port) \
+({ \
+ unsigned long v = value; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "strh %0, [%1, %2] @ outwc" \
+ : : "r" (v|v<<16), "r" (PCIO_BASE), "Jr" (port)); \
+ else \
+ __asm__ __volatile__( \
+ "strh %0, [%1, %2] @ outwc" \
+ : : "r" (v|v<<16), "r" (IO_BASE), "r" (port)); \
+})
+
+#define __inwc(port) \
+({ \
+ unsigned short result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldrh %0, [%1, %2] @ inwc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" (port)); \
+ else \
+ __asm__ __volatile__( \
+ "ldrh %0, [%1, %2] @ inwc" \
+ : "=r" (result) : "r" (IO_BASE), "r" (port)); \
+ 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)); \
+ else \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2] @ outlc" \
+ : : "r" (v), "r" (IO_BASE), "r" (port)); \
+})
+
+#define __inlc(port) \
+({ \
+ unsigned long result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inlc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" (port)); \
+ else \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inlc" \
+ : "=r" (result) : "r" (IO_BASE), "r" (port)); \
+ result; \
+})
+
+#define __ioaddrc(port) \
+({ \
+ unsigned long addr; \
+ if (__PORT_PCIO((port))) \
+ addr = PCIO_BASE + (port); \
+ else \
+ addr = IO_BASE + (port); \
+ addr; \
+})
+
+#define __mem_pci(addr) (addr)
+
+#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))
+
+/*
+ * Translated address IO functions
+ *
+ * IO address has already been translated to a virtual address
+ */
+#define outb_t(v,p) \
+ (*(volatile unsigned char *)(p) = (v))
+
+#define inb_t(p) \
+ (*(volatile unsigned char *)(p))
+
+#define outl_t(v,p) \
+ (*(volatile unsigned long *)(p) = (v))
+
+#define inl_t(p) \
+ (*(volatile unsigned long *)(p))
+
+#endif
diff --git a/include/asm-arm/arch-shark/irqs.h b/include/asm-arm/arch-shark/irqs.h
new file mode 100644
index 000000000000..b36cc975b290
--- /dev/null
+++ b/include/asm-arm/arch-shark/irqs.h
@@ -0,0 +1,13 @@
+/*
+ * linux/include/asm-arm/arch-shark/irqs.h
+ *
+ * by Alexander Schulz
+ */
+
+#define NR_IRQS 16
+
+#define IRQ_ISA_KEYBOARD 1
+#define RTC_IRQ 8
+#define I8042_KBD_IRQ 1
+#define I8042_AUX_IRQ 12
+#define IRQ_HARDDISK 14
diff --git a/include/asm-arm/arch-shark/memory.h b/include/asm-arm/arch-shark/memory.h
new file mode 100644
index 000000000000..8ff956d25463
--- /dev/null
+++ b/include/asm-arm/arch-shark/memory.h
@@ -0,0 +1,42 @@
+/*
+ * linux/include/asm-arm/arch-shark/memory.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * linux/include/asm-arm/arch-ebsa110/memory.h
+ * Copyright (c) 1996-1999 Russell King.
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/sizes.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET (0x08000000UL)
+
+#ifndef __ASSEMBLY__
+
+static inline void __arch_adjust_zones(int node, unsigned long *zone_size, unsigned long *zhole_size)
+{
+ if (node != 0) return;
+ /* Only the first 4 MB (=1024 Pages) are usable for DMA */
+ zone_size[1] = zone_size[0] - 1024;
+ zone_size[0] = 1024;
+ zhole_size[1] = zhole_size[0];
+ zhole_size[0] = 0;
+}
+
+#define arch_adjust_zones(node, size, holes) \
+ __arch_adjust_zones(node, size, holes)
+
+#define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_4M - 1)
+
+#endif
+
+#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-shark/param.h b/include/asm-arm/arch-shark/param.h
new file mode 100644
index 000000000000..997eeb71de00
--- /dev/null
+++ b/include/asm-arm/arch-shark/param.h
@@ -0,0 +1,5 @@
+/*
+ * linux/include/asm-arm/arch-shark/param.h
+ *
+ * by Alexander Schulz
+ */
diff --git a/include/asm-arm/arch-shark/system.h b/include/asm-arm/arch-shark/system.h
new file mode 100644
index 000000000000..f12d771ab4ce
--- /dev/null
+++ b/include/asm-arm/arch-shark/system.h
@@ -0,0 +1,28 @@
+/*
+ * linux/include/asm-arm/arch-shark/system.h
+ *
+ * by Alexander Schulz
+ */
+#ifndef __ASM_ARCH_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <asm/io.h>
+
+static void arch_reset(char mode)
+{
+ short temp;
+ local_irq_disable();
+ /* Reset the Machine via pc[3] of the sequoia chipset */
+ outw(0x09,0x24);
+ temp=inw(0x26);
+ temp = temp | (1<<3) | (1<<10);
+ outw(0x09,0x24);
+ outw(temp,0x26);
+
+}
+
+static inline void arch_idle(void)
+{
+}
+
+#endif
diff --git a/include/asm-arm/arch-shark/timex.h b/include/asm-arm/arch-shark/timex.h
new file mode 100644
index 000000000000..0d02d255513b
--- /dev/null
+++ b/include/asm-arm/arch-shark/timex.h
@@ -0,0 +1,7 @@
+/*
+ * linux/include/asm-arm/arch-shark/timex.h
+ *
+ * by Alexander Schulz
+ */
+
+#define CLOCK_TICK_RATE 1193180
diff --git a/include/asm-arm/arch-shark/uncompress.h b/include/asm-arm/arch-shark/uncompress.h
new file mode 100644
index 000000000000..910a8e0a0ca5
--- /dev/null
+++ b/include/asm-arm/arch-shark/uncompress.h
@@ -0,0 +1,60 @@
+/*
+ * linux/include/asm-arm/arch-shark/uncompress.h
+ * by Alexander Schulz
+ *
+ * derived from:
+ * linux/include/asm-arm/arch-ebsa285/uncompress.h
+ * Copyright (C) 1996,1997,1998 Russell King
+ */
+
+#define SERIAL_BASE ((volatile unsigned char *)0x400003f8)
+
+static __inline__ void putc(char c)
+{
+ int t;
+
+ SERIAL_BASE[0] = c;
+ t=0x10000;
+ while (t--);
+}
+
+/*
+ * This does not append a newline
+ */
+static void putstr(const char *s)
+{
+ while (*s) {
+ putc(*s);
+ if (*s == '\n')
+ putc('\r');
+ s++;
+ }
+}
+
+#ifdef DEBUG
+static void putn(unsigned long z)
+{
+ int i;
+ char x;
+
+ putc('0');
+ putc('x');
+ for (i=0;i<8;i++) {
+ x='0'+((z>>((7-i)*4))&0xf);
+ if (x>'9') x=x-'0'+'A'-10;
+ putc(x);
+ }
+}
+
+static void putr()
+{
+ putc('\n');
+ putc('\r');
+}
+#endif
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-shark/vmalloc.h b/include/asm-arm/arch-shark/vmalloc.h
new file mode 100644
index 000000000000..1cc20098f690
--- /dev/null
+++ b/include/asm-arm/arch-shark/vmalloc.h
@@ -0,0 +1,15 @@
+/*
+ * linux/include/asm-arm/arch-rpc/vmalloc.h
+ */
+
+/*
+ * 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 + 0x10000000)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.