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sm501: Add some more unimplemented registers

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These are not really implemented (just return zero or default values)
but add these so guests accessing them can run.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
BALATON Zoltan 2017-12-16 23:57:46 +01:00 committed by David Gibson
parent a45de1794e
commit 5690d9ecef
1 changed files with 17 additions and 0 deletions
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17
hw/display/sm501.c
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@ -795,6 +795,8 @@ static uint64_t sm501_system_config_read(void *opaque, hwaddr addr,
case SM501_ARBTRTN_CONTROL:
ret = s->arbitration_control;
break;
case SM501_COMMAND_LIST_STATUS:
ret = 0x00180002; /* FIFOs are empty, everything idle */
case SM501_IRQ_MASK:
ret = s->irq_mask;
break;
@ -812,6 +814,9 @@ static uint64_t sm501_system_config_read(void *opaque, hwaddr addr,
case SM501_POWER_MODE_CONTROL:
ret = s->power_mode_control;
break;
case SM501_ENDIAN_CONTROL:
ret = 0; /* Only default little endian mode is supported */
break;
default:
printf("sm501 system config : not implemented register read."
@ -865,6 +870,12 @@ static void sm501_system_config_write(void *opaque, hwaddr addr,
case SM501_POWER_MODE_CONTROL:
s->power_mode_control = value & 0x00000003;
break;
case SM501_ENDIAN_CONTROL:
if (value & 0x00000001) {
printf("sm501 system config : big endian mode not implemented.\n");
abort();
}
break;
default:
printf("sm501 system config : not implemented register write."
@ -924,6 +935,9 @@ static uint64_t sm501_disp_ctrl_read(void *opaque, hwaddr addr,
case SM501_DC_PANEL_PANNING_CONTROL:
ret = s->dc_panel_panning_control;
break;
case SM501_DC_PANEL_COLOR_KEY:
/* Not implemented yet */
break;
case SM501_DC_PANEL_FB_ADDR:
ret = s->dc_panel_fb_addr;
break;
@ -1035,6 +1049,9 @@ static void sm501_disp_ctrl_write(void *opaque, hwaddr addr,
case SM501_DC_PANEL_PANNING_CONTROL:
s->dc_panel_panning_control = value & 0xFF3FFF3F;
break;
case SM501_DC_PANEL_COLOR_KEY:
/* Not implemented yet */
break;
case SM501_DC_PANEL_FB_ADDR:
s->dc_panel_fb_addr = value & 0x8FFFFFF0;
break;