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fixed wrong MMU mapping of emulated Falcon video memory (phys and virt

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where the wrong way round)
This commit is contained in:
Markus Fröschle
2014-05-11 06:57:09 +00:00
parent f73b3e9684
commit c57cea78e3
2 changed files with 8 additions and 6 deletions
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6
BaS_gcc/sys/mmu.c
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@@ -192,8 +192,8 @@ static struct mmu_mapping locked_map[] =
{
{
/* Falcon video memory. Needs special care */
0xd00000,
0x60d00000,
0xd00000,
0x100000,
MMU_PAGE_SIZE_1M,
{ CACHE_WRITETHROUGH, SV_USER, SCA_PAGE_ID, ACCESS_READ | ACCESS_WRITE | ACCESS_EXECUTE },
@@ -429,8 +429,8 @@ bool access_exception(uint32_t pc, uint32_t format_status)
{
case 0x4010000: /* TLB miss on opword of instruction fetch */
case 0x4020000: /* TLB miss on extension word of instruction fetch */
fault_address = pc;
break;
//fault_address = pc;
//break;
case 0x8020000: /* TLB miss on data write */
case 0xc020000: /* TLB miss on data read or read-modify-write */
fault_address = MCF_MMU_MMUAR;

8
BaS_gcc/sys/sysinit.c
View File

@@ -669,7 +669,8 @@ static bool i2c_bus_free(void)
/*
* TFP410 (DVI) on
*/
void dvi_on(void) {
void dvi_on(void)
{
uint8_t receivedByte;
uint8_t dummyByte; /* only used for a dummy read */
int num_tries = 0;
@@ -678,9 +679,10 @@ void dvi_on(void) {
MCF_I2C_I2FDR = 0x3c; /* divide system clock by 1280: 100kHz standard */
do {
do
{
/* disable all i2c interrupt routing targets */
MCF_I2C_I2ICR = 0x0; //~(MCF_I2C_I2ICR_IE | MCF_I2C_I2ICR_RE | MCF_I2C_I2ICR_TE | MCF_I2C_I2ICR_BNBE);
MCF_I2C_I2ICR = 0x0; // ~(MCF_I2C_I2ICR_IE | MCF_I2C_I2ICR_RE | MCF_I2C_I2ICR_TE | MCF_I2C_I2ICR_BNBE);
/* disable i2c, disable i2c interrupts, slave, receive, i2c = acknowledge, no repeat start */
MCF_I2C_I2CR = 0x0;