mirror of
https://gitlab.com/qemu-project/openbios.git
synced 2024-02-13 08:34:06 +08:00
f21a9ceb00
disappears when booting a FC12 test ISO directly. Interestingly enough, if the equivalent "load" and "go" commands are entered manually then the console output works fine and the ISO can boot?! So there is still an issue with the console not being initialised correctly somewhere. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk> git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@734 f158a5a8-5612-0410-a976-696ce0be7e32
175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
#ifndef _ASM_IO_H
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#define _ASM_IO_H
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#include "asm/types.h"
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#define NO_QEMU_PROTOS
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#include "arch/common/fw_cfg.h"
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extern char _start, _end;
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extern unsigned long virt_offset;
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#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
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#define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
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#ifndef BOOTSTRAP
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extern uint32_t isa_io_base;
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/*
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* The insw/outsw/insl/outsl macros don't do byte-swapping.
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* They are only used in practice for transferring buffers which
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* are arrays of bytes, and byte-swapping is not appropriate in
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* that case. - paulus
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*/
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#define insw(port, buf, ns) _insw((uint16_t *)((port)+isa_io_base), (buf), (ns))
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#define outsw(port, buf, ns) _outsw((uint16_t *)((port)+isa_io_base), (buf), (ns))
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#define inb(port) in_8((uint8_t *)((port)+isa_io_base))
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#define outb(val, port) out_8((uint8_t *)((port)+isa_io_base), (val))
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#define inw(port) in_le16((uint16_t *)((port)+isa_io_base))
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#define outw(val, port) out_le16((uint16_t *)((port)+isa_io_base), (val))
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#define inl(port) in_le32((uint32_t *)((port)+isa_io_base))
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#define outl(val, port) out_le32((uint32_t *)((port)+isa_io_base), (val))
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/*
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* 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
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*/
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static inline int in_8(volatile unsigned char *addr)
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{
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int ret;
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__asm__ __volatile__("lbz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
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return ret;
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}
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static inline void out_8(volatile unsigned char *addr, int val)
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{
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__asm__ __volatile__("stb%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
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}
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static inline int in_le16(volatile unsigned short *addr)
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{
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int ret;
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__asm__ __volatile__("lhbrx %0,0,%1; eieio":"=r"(ret):
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"r"(addr), "m"(*addr));
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return ret;
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}
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static inline int in_be16(volatile unsigned short *addr)
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{
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int ret;
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__asm__ __volatile__("lhz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
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return ret;
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}
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static inline void out_le16(volatile unsigned short *addr, int val)
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{
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__asm__ __volatile__("sthbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
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"r"(addr));
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}
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static inline void out_be16(volatile unsigned short *addr, int val)
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{
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__asm__ __volatile__("sth%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
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}
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static inline unsigned in_le32(volatile unsigned *addr)
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{
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unsigned ret;
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__asm__ __volatile__("lwbrx %0,0,%1; eieio":"=r"(ret):
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"r"(addr), "m"(*addr));
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return ret;
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}
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static inline unsigned in_be32(volatile unsigned *addr)
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{
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unsigned ret;
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__asm__ __volatile__("lwz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
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return ret;
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}
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static inline void out_le32(volatile unsigned *addr, int val)
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{
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__asm__ __volatile__("stwbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
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"r"(addr));
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}
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static inline void out_be32(volatile unsigned *addr, int val)
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{
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__asm__ __volatile__("stw%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
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}
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static inline void _insw_ns(volatile uint16_t * port, void *buf, int ns)
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{
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uint16_t *b = (uint16_t *) buf;
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while (ns > 0) {
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*b++ = in_le16(port);
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ns--;
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}
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}
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static inline void _outsw_ns(volatile uint16_t * port, const void *buf,
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int ns)
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{
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uint16_t *b = (uint16_t *) buf;
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while (ns > 0) {
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out_le16(port, *b++);
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ns--;
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}
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}
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static inline void _insw(volatile uint16_t * port, void *buf, int ns)
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{
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uint16_t *b = (uint16_t *) buf;
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while (ns > 0) {
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*b++ = in_be16(port);
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ns--;
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}
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}
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static inline void _outsw(volatile uint16_t * port, const void *buf,
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int ns)
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{
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uint16_t *b = (uint16_t *) buf;
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while (ns > 0) {
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out_be16(port, *b++);
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ns--;
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}
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}
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#else /* BOOTSTRAP */
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#ifdef FCOMPILER
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#define inb(reg) ((u8)0xff)
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#define inw(reg) ((u16)0xffff)
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#define inl(reg) ((u32)0xffffffff)
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#define outb(reg, val) do{} while(0)
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#define outw(reg, val) do{} while(0)
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#define outl(reg, val) do{} while(0)
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#else
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extern u8 inb(u32 reg);
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extern u16 inw(u32 reg);
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extern u32 inl(u32 reg);
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extern void insw(u32 reg, void *addr, unsigned long count);
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extern void outb(u32 reg, u8 val);
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extern void outw(u32 reg, u16 val);
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extern void outl(u32 reg, u32 val);
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extern void outsw(u32 reg, const void *addr, unsigned long count);
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#endif
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#endif
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#if defined(CONFIG_QEMU)
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#define FW_CFG_ARCH_WIDTH (FW_CFG_ARCH_LOCAL + 0x00)
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#define FW_CFG_ARCH_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
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#define FW_CFG_ARCH_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
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#endif
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#endif /* _ASM_IO_H */
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