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-rw-r--r--hw/display/sm501.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 6b72964e1e..6e74200216 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -474,6 +474,7 @@ typedef struct SM501State {
uint32_t gpio_31_0_control;
uint32_t gpio_63_32_control;
uint32_t dram_control;
+ uint32_t arbitration_control;
uint32_t irq_mask;
uint32_t misc_timing;
uint32_t power_mode_control;
@@ -757,6 +758,9 @@ static uint64_t sm501_system_config_read(void *opaque, hwaddr addr,
case SM501_DRAM_CONTROL:
ret = (s->dram_control & 0x07F107C0) | s->local_mem_size_index << 13;
break;
+ case SM501_ARBTRTN_CONTROL:
+ ret = s->arbitration_control;
+ break;
case SM501_IRQ_MASK:
ret = s->irq_mask;
break;
@@ -809,6 +813,9 @@ static void sm501_system_config_write(void *opaque, hwaddr addr,
/* TODO : check validity of size change */
s->dram_control |= value & 0x7FFFFFC3;
break;
+ case SM501_ARBTRTN_CONTROL:
+ s->arbitration_control = value & 0x37777777;
+ break;
case SM501_IRQ_MASK:
s->irq_mask = value;
break;
@@ -1422,6 +1429,7 @@ void sm501_init(MemoryRegion *address_space_mem, uint32_t base,
* BUS = 0 : Hitachi SH3/SH4
*/
s->misc_control = SM501_MISC_DAC_POWER;
+ s->arbitration_control = 0x05146732;
s->dc_panel_control = 0x00010000; /* FIFO level 3 */
s->dc_crt_control = 0x00010000;