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hammerhead: Add Motherboard ID Burst ROM flag.

This commit is contained in:
joevt 2023-10-30 22:52:36 -07:00 committed by dingusdev
parent eb1d5d0a6d
commit 1dfa671405
1 changed files with 12 additions and 5 deletions
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17
devices/memctrl/hammerhead.h
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@ -39,10 +39,12 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
namespace Hammerhead {
#define RISC_MACHINE 0x3
#define MACH_TYPE_TNT 0x1
#define EXTENDED_ID 0x1 // examine some other registers to get full ID
#define HH_CPU_ID_TNT ((RISC_MACHINE << 4) | (EXTENDED_ID << 3) | MACH_TYPE_TNT)
#define RISC_MACHINE 0x3
#define MACH_TYPE_TNT 0x1
#define EXTENDED_ID_TNT 0x1 // examine some other registers to get full ID
#define MACH_TYPE_CATALYST 0x0
#define HH_CPU_ID_TNT ((RISC_MACHINE << 4) | (EXTENDED_ID_TNT << 3) | MACH_TYPE_TNT)
#define HH_CPU_ID_CATALYST ((RISC_MACHINE << 4) | 0 | MACH_TYPE_CATALYST)
// constants for the MBID field of the MOTHERBOARD_ID register
enum {
@ -50,6 +52,11 @@ namespace Hammerhead {
MBID_PCI2_PRESENT = 2,
};
// constants for the BURST_ROM field of the MOTHERBOARD_ID register
enum {
MBID_BURST_ROM = 1,
};
// ARBus speed constants for the CPU_SPEED register
enum {
BUS_SPEED_40_MHZ = 0,
@ -118,7 +125,7 @@ public:
private:
uint8_t mb_id = Hammerhead::MBID_VCI0_PRESENT;
uint8_t rom_type = 1; // 1 - burstable ROM installed
uint8_t rom_type = Hammerhead::MBID_BURST_ROM;
uint8_t bus_speed = Hammerhead::BUS_SPEED_40_MHZ;
uint8_t arb_config = 0;