chickens: Initial T8122 Everest/Sawtooth support

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

src/chickens.c

@@ -26,6 +26,8 @@ void init_t6020_blizzard(int rev);
 void init_t6020_avalanche(int rev);
 void init_t6021_blizzard(int rev);
 void init_t6021_avalanche(int rev);
+void init_t8122_sawtooth(int rev);
+void init_t8122_everest(int rev);
 void init_t6030_sawtooth(int rev);
 void init_t6030_everest(int rev);
 void init_t6031_sawtooth(int rev);
@@ -147,6 +149,8 @@ const struct midr_part_info midr_parts[] = {
     {MIDR_PART_T6030_SAWTOOTH, "M3 Pro Sawtooth", init_t6030_sawtooth, &features_m3},
     {MIDR_PART_T6031_EVEREST, "M3 Max Everest", init_t6031_everest, &features_m3},
     {MIDR_PART_T6031_SAWTOOTH, "M3 Max Sawtooth", init_t6031_sawtooth, &features_m3},
+    {MIDR_PART_T8122_EVEREST, "M3 Everest", init_t8122_everest, &features_m3},
+    {MIDR_PART_T8122_SAWTOOTH, "M3 Sawtooth", init_t8122_sawtooth, &features_m3},
     {MIDR_PART_T8132_DONAN_ECORE, "M4 Donan (E core)", NULL, &features_m4},
     {MIDR_PART_T8132_DONAN_PCORE, "M4 Donan (P core)", NULL, &features_m4},
 };

src/chickens_everest.c

@@ -36,6 +36,43 @@ static void init_common_everest(void)
     reg_clr(s3_0_c15_c2_4, BIT(0) | BIT(1) | BIT(16) | BIT(17) | BIT(18) | BIT(22));
 }
 
+void init_t8122_everest(int rev)
+{
+    UNUSED(rev);
+
+    reg_clr(SYS_IMP_APL_HID3, BIT(2));
+    reg_mask(SYS_IMP_APL_HID3, GENMASK(62, 56), BIT(59));
+    reg_set(SYS_IMP_APL_HID9, BIT(17));
+
+    reg_mask(SYS_IMP_APL_HID13,
+             HID13_POST_OFF_CYCLES_MASK | HID13_POST_ON_CYCLES_MASK | HID13_GROUP0_FF1_DELAY_MASK |
+                 HID13_GROUP0_FF2_DELAY_MASK | HID13_GROUP0_FF3_DELAY_MASK |
+                 HID13_GROUP0_FF4_DELAY_MASK | HID13_GROUP0_FF5_DELAY_MASK |
+                 HID13_GROUP0_FF6_DELAY_MASK | HID13_GROUP0_FF7_DELAY_MASK |
+                 HID13_RESET_CYCLES_MASK,
+             HID13_POST_OFF_CYCLES(4) | HID13_POST_ON_CYCLES(5) | HID13_GROUP0_FF1_DELAY(4) |
+                 HID13_GROUP0_FF2_DELAY(4) | HID13_GROUP0_FF3_DELAY(4) | HID13_GROUP0_FF4_DELAY(4) |
+                 HID13_GROUP0_FF5_DELAY(4) | HID13_GROUP0_FF6_DELAY(4) | HID13_GROUP0_FF7_DELAY(4) |
+                 HID13_RESET_CYCLES(0));
+
+    msr(SYS_IMP_APL_HID26,
+        HID26_GROUP1_OFFSET(0x16 | (0x2 << 8) | (0x2 << 12) | (0x2 << 16) | (0x2 << 20) |
+                            (0x2 << 24) | (0x2 << 28) | (0x2uL << 32)) |
+            HID26_GROUP2_OFFSET(0x23 | (0x1 << 8) | (0x1 << 12) | (0x1 << 16) | (0x1 << 20) |
+                                (0x1 << 24)));
+
+    reg_mask(SYS_IMP_APL_HID27,
+             GENMASK(43, 40) | GENMASK(39, 36) | GENMASK(35, 32) | GENMASK(31, 28) |
+                 GENMASK(27, 24) | GENMASK(23, 20) | GENMASK(19, 16) | GENMASK(15, 8) |
+                 GENMASK(7, 4) | GENMASK(3, 0),
+             BIT(40) | BIT(36) | BIT(32) | BIT(28) | BIT(24) | BIT(20) | BIT(16) | 0x2b00uL |
+                 BIT(4) | BIT(0));
+    reg_set(SYS_IMP_APL_HID18,
+            HID18_GEXIT_EL_SPECULATION_DISABLE | HID18_GENTER_SPECULATION_DISABLE);
+    reg_clr(s3_0_c15_c2_4, BIT(0) | BIT(1) | BIT(16) | BIT(17) | BIT(18) | BIT(22));
+    reg_set(SYS_IMP_APL_HID16, BIT(54));
+}
+
 void init_t6030_everest(int rev)
 {
     UNUSED(rev);

src/chickens_sawtooth.c

@@ -8,6 +8,15 @@ static void init_common_sawtooth(void)
     reg_set(SYS_IMP_APL_EHID0, EHID0_BLI_UNK32);
 }
 
+void init_t8122_sawtooth(void)
+{
+    reg_clr(SYS_IMP_APL_EHID9, EHID9_DEV_2_THROTTLE_ENABLE);
+    reg_clr(SYS_IMP_APL_EHID9, BIT(53));
+    reg_mask(SYS_IMP_APL_EHID9, EHID9_DEV_2_THROTTLE_LIMIT_MASK, EHID9_DEV_2_THROTTLE_LIMIT(8));
+    reg_set(SYS_IMP_APL_EHID10, BIT(47));
+    reg_set(SYS_IMP_APL_EHID7, BIT(6));
+}
+
 void init_t6030_sawtooth(int rev)
 {
     UNUSED(rev);

src/cpu_regs.h

@@ -293,6 +293,8 @@
 #define HID7_FORCE_NONSPEC_TARGET_TIMER_SEL(x)                        ((ULONG(x)) << 24)
 #define HID7_FORCE_NONSPEC_TARGET_TIMER_SEL_MASK                      (3UL << 24)
 
+#define SYS_IMP_APL_EHID7 sys_reg(3, 0, 15, 7, 1)
+
 #define SYS_IMP_APL_HID8             sys_reg(3, 0, 15, 8, 0)
 #define HID8_DATA_SET_ID0_VALUE(x)   ((ULONG(x)) << 4)
 #define HID8_DATA_SET_ID0_VALUE_MASK GENMASK(7, 4)