Merge pull request #257 from sifive/choose-boot-hart

DeviceTree can request a specific boot hart with 'metal,boothart' property in the chosen node

7 files changed, 39 insertions, 6 deletions

diff --git a/bsp/sifive-hifive-unleashed/metal-inline.h b/bsp/sifive-hifive-unleashed/metal-inline.h
index 6099519..dcc51cb 100644
--- a/bsp/sifive-hifive-unleashed/metal-inline.h
+++ b/bsp/sifive-hifive-unleashed/metal-inline.h
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 #ifndef ASSEMBLY
@@ -31,6 +31,7 @@ extern inline int __metal_driver_sifive_clint0_interrupt_lines(struct metal_inte
 
 
 /* --------------------- cpu ------------ */
+extern inline int __metal_driver_cpu_hartid(struct metal_cpu *cpu);
 extern inline int __metal_driver_cpu_timebase(struct metal_cpu *cpu);
 extern inline struct metal_interrupt * __metal_driver_cpu_interrupt_controller(struct metal_cpu *cpu);
 extern inline int __metal_driver_cpu_num_pmp_regions(struct metal_cpu *cpu);
diff --git a/bsp/sifive-hifive-unleashed/metal-platform.h b/bsp/sifive-hifive-unleashed/metal-platform.h
index 19119c4..4bfe75b 100644
--- a/bsp/sifive-hifive-unleashed/metal-platform.h
+++ b/bsp/sifive-hifive-unleashed/metal-platform.h
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 #ifndef SIFIVE_HIFIVE_UNLEASHED__METAL_PLATFORM_H
diff --git a/bsp/sifive-hifive-unleashed/metal.default.lds b/bsp/sifive-hifive-unleashed/metal.default.lds
index a0d0420..23351d2 100644
--- a/bsp/sifive-hifive-unleashed/metal.default.lds
+++ b/bsp/sifive-hifive-unleashed/metal.default.lds
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 OUTPUT_ARCH("riscv")
@@ -29,6 +29,7 @@ SECTIONS
 	__stack_size = DEFINED(__stack_size) ? __stack_size : 0x400;
 	PROVIDE(__stack_size = __stack_size);
 	__heap_size = DEFINED(__heap_size) ? __heap_size : 0x400;
+	PROVIDE(__metal_boot_hart = 0);
 
 
 	.init 		:
diff --git a/bsp/sifive-hifive-unleashed/metal.h b/bsp/sifive-hifive-unleashed/metal.h
index f74e931..4154037 100644
--- a/bsp/sifive-hifive-unleashed/metal.h
+++ b/bsp/sifive-hifive-unleashed/metal.h
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 #ifndef ASSEMBLY
@@ -318,6 +318,28 @@ static inline int __metal_driver_sifive_clint0_interrupt_lines(struct metal_inte
 
 
 /* --------------------- cpu ------------ */
+static inline int __metal_driver_cpu_hartid(struct metal_cpu *cpu)
+{
+	if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_0) {
+		return 0;
+	}
+	else if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_0) {
+		return 0;
+	}
+	else if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_1) {
+		return 1;
+	}
+	else if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_2) {
+		return 2;
+	}
+	else if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_3) {
+		return 3;
+	}
+	else {
+		return -1;
+	}
+}
+
 static inline int __metal_driver_cpu_timebase(struct metal_cpu *cpu)
 {
 	if ((uintptr_t)cpu == (uintptr_t)&__metal_dt_cpu_0) {
diff --git a/bsp/sifive-hifive-unleashed/metal.ramrodata.lds b/bsp/sifive-hifive-unleashed/metal.ramrodata.lds
index f0f2a6d..4b31408 100644
--- a/bsp/sifive-hifive-unleashed/metal.ramrodata.lds
+++ b/bsp/sifive-hifive-unleashed/metal.ramrodata.lds
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 OUTPUT_ARCH("riscv")
@@ -29,6 +29,7 @@ SECTIONS
 	__stack_size = DEFINED(__stack_size) ? __stack_size : 0x400;
 	PROVIDE(__stack_size = __stack_size);
 	__heap_size = DEFINED(__heap_size) ? __heap_size : 0x400;
+	PROVIDE(__metal_boot_hart = 0);
 
 
 	.init 		:
diff --git a/bsp/sifive-hifive-unleashed/metal.scratchpad.lds b/bsp/sifive-hifive-unleashed/metal.scratchpad.lds
index dd35e29..48d397f 100644
--- a/bsp/sifive-hifive-unleashed/metal.scratchpad.lds
+++ b/bsp/sifive-hifive-unleashed/metal.scratchpad.lds
@@ -1,7 +1,7 @@
 /* Copyright 2019 SiFive, Inc */
 /* SPDX-License-Identifier: Apache-2.0 */
 /* ----------------------------------- */
-/* [XXXXX] 21-05-2019 10-54-35        */
+/* [XXXXX] 23-05-2019 13-29-50        */
 /* ----------------------------------- */
 
 OUTPUT_ARCH("riscv")
@@ -29,6 +29,7 @@ SECTIONS
 	__stack_size = DEFINED(__stack_size) ? __stack_size : 0x400;
 	PROVIDE(__stack_size = __stack_size);
 	__heap_size = DEFINED(__heap_size) ? __heap_size : 0x400;
+	PROVIDE(__metal_boot_hart = 0);
 
 
 	.init 		:
diff --git a/bsp/sifive-hifive-unleashed/settings.mk b/bsp/sifive-hifive-unleashed/settings.mk
index 38a72d6..2745538 100644
--- a/bsp/sifive-hifive-unleashed/settings.mk
+++ b/bsp/sifive-hifive-unleashed/settings.mk
@@ -1,5 +1,12 @@
+# Copyright 2019 SiFive, Inc #
+# SPDX-License-Identifier: Apache-2.0 #
+# ----------------------------------- #
+# [XXXXX] 23-05-2019 13-29-50        #
+# ----------------------------------- #
+
 RISCV_ARCH=rv64imac
 RISCV_ABI=lp64
 RISCV_CMODEL=medany
 
 TARGET_TAGS=board openocd
+TARGET_DHRY_ITERS=20000000