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authorSimon Glass <sjg@chromium.org>2014-11-14 20:56:39 -0700
committerSimon Glass <sjg@chromium.org>2014-11-25 07:11:16 -0700
commitad6edca379117d52da373818a5db3027da2ad14b (patch)
treedbee60341b51e7a2ae7e6af5953f4d81d5644972 /drivers/bios_emulator/besys.c
parent62d0c5e15347f0ab9998d8bac2845be0d441c8b1 (diff)
downloadblackbird-obmc-uboot-ad6edca379117d52da373818a5db3027da2ad14b.tar.gz
blackbird-obmc-uboot-ad6edca379117d52da373818a5db3027da2ad14b.zip
bios_emulator: Allow x86 to use the emulator
There is an implicit assumption that x86 machines want to use raw I/O in the BIOS emulator, but this should be selectable. Add an CONFIG_X86EMU_RAW_IO option to control it instead. Also fix a few bugs which cause warnings on x86 and adjust the Makefile to remove the assumption that only PowerPC uses the emulator. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/bios_emulator/besys.c')
-rw-r--r--drivers/bios_emulator/besys.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/bios_emulator/besys.c b/drivers/bios_emulator/besys.c
index ad88a53f0c..70c472a16b 100644
--- a/drivers/bios_emulator/besys.c
+++ b/drivers/bios_emulator/besys.c
@@ -54,7 +54,7 @@
/*------------------------- Global Variables ------------------------------*/
-#ifndef __i386__
+#ifndef CONFIG_X86EMU_RAW_IO
static char *BE_biosDate = "08/14/99";
static u8 BE_model = 0xFC;
static u8 BE_submodel = 0x00;
@@ -80,16 +80,18 @@ static u8 *BE_memaddr(u32 addr)
if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) {
return (u8*)(_BE_env.biosmem_base + addr - 0xC0000);
} else if (addr > _BE_env.biosmem_limit && addr < 0xD0000) {
- DB(printf("BE_memaddr: address %#lx may be invalid!\n", addr);)
- return M.mem_base;
+ DB(printf("BE_memaddr: address %#lx may be invalid!\n",
+ (ulong)addr);)
+ return (u8 *)M.mem_base;
} else if (addr >= 0xA0000 && addr <= 0xBFFFF) {
return (u8*)(_BE_env.busmem_base + addr - 0xA0000);
}
-#ifdef __i386__
+#ifdef CONFIG_X86EMU_RAW_IO
else if (addr >= 0xD0000 && addr <= 0xFFFFF) {
/* We map the real System BIOS directly on real PC's */
- DB(printf("BE_memaddr: System BIOS address %#lx\n", addr);)
- return _BE_env.busmem_base + addr - 0xA0000;
+ DB(printf("BE_memaddr: System BIOS address %#lx\n",
+ (ulong)addr);)
+ return (u8 *)_BE_env.busmem_base + addr - 0xA0000;
}
#else
else if (addr >= 0xFFFF5 && addr < 0xFFFFE) {
@@ -108,10 +110,10 @@ static u8 *BE_memaddr(u32 addr)
#endif
else if (addr > M.mem_size - 1) {
HALT_SYS();
- return M.mem_base;
+ return (u8 *)M.mem_base;
}
- return M.mem_base + addr;
+ return (u8 *)(M.mem_base + addr);
}
/****************************************************************************
@@ -230,7 +232,7 @@ void X86API BE_wrl(u32 addr, u32 val)
}
}
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
/* For Non-Intel machines we may need to emulate some I/O port accesses that
* the BIOS may try to access, such as the PCI config registers.
@@ -560,7 +562,7 @@ u8 X86API BE_inb(X86EMU_pioAddr port)
{
u8 val = 0;
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_VGA_PORT(port)){
/*seems reading port 0x3c3 return the high 16 bit of io port*/
if(port == 0x3c3)
@@ -601,7 +603,7 @@ u16 X86API BE_inw(X86EMU_pioAddr port)
{
u16 val = 0;
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_PCI_PORT(port))
val = PCI_inp(port, REG_READ_WORD);
else if (port < 0x100) {
@@ -629,7 +631,7 @@ u32 X86API BE_inl(X86EMU_pioAddr port)
{
u32 val = 0;
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_PCI_PORT(port))
val = PCI_inp(port, REG_READ_DWORD);
else if (port < 0x100) {
@@ -652,7 +654,7 @@ through to the real hardware if we don't need to special case it.
****************************************************************************/
void X86API BE_outb(X86EMU_pioAddr port, u8 val)
{
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_VGA_PORT(port))
VGA_outpb(port, val);
else if (IS_TIMER_PORT(port))
@@ -683,7 +685,7 @@ through to the real hardware if we don't need to special case it.
****************************************************************************/
void X86API BE_outw(X86EMU_pioAddr port, u16 val)
{
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_VGA_PORT(port)) {
VGA_outpb(port, val);
VGA_outpb(port + 1, val >> 8);
@@ -710,7 +712,7 @@ through to the real hardware if we don't need to special case it.
****************************************************************************/
void X86API BE_outl(X86EMU_pioAddr port, u32 val)
{
-#if defined(DEBUG) || !defined(__i386__)
+#if !defined(CONFIG_X86EMU_RAW_IO)
if (IS_PCI_PORT(port))
PCI_outp(port, val, REG_WRITE_DWORD);
else if (port < 0x100) {
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