Adding Standard CoreIPs forE20, E21 support

8 files changed, 1157 insertions, 0 deletions

diff --git a/bsp/coreip-e20/design.dts b/bsp/coreip-e20/design.dts
new file mode 100644
index 0000000..f3c25a5
--- /dev/null
+++ b/bsp/coreip-e20/design.dts
@@ -0,0 +1,80 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "SiFive,FE200G-dev", "fe200-dev", "sifive-dev";
+	model = "SiFive,FE200G";
+	L11: cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		L4: cpu@0 {
+			clock-frequency = <0>;
+			compatible = "sifive,caboose0", "riscv";
+			device_type = "cpu";
+			reg = <0x0>;
+			riscv,isa = "rv32imc";
+			status = "okay";
+			timebase-frequency = <1000000>;
+                        hardware-exec-breakpoint-count = <4>;
+			L3: interrupt-controller {
+				#interrupt-cells = <1>;
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+			};
+		};
+	};
+	L10: soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "SiFive,FE200G-soc", "fe200-soc", "sifive-soc", "simple-bus";
+		ranges;
+ 		pmp: pmp@0 {
+ 			compatible = "riscv,pmp";
+ 			regions = <8>;
+ 		};
+		L8: ahb-sys-port@20000000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "sifive,ahb-sys-port", "sifive,ahb-port", "sifive,sys-port", "simple-bus";
+			ranges = <0x20000000 0x20000000 0x20000000>;
+		};
+		L2: debug-controller@0 {
+			compatible = "sifive,debug-013", "riscv,debug-013";
+			interrupts-extended = <&L3 65535>;
+			reg = <0x0 0x1000>;
+			reg-names = "control";
+		};
+		L0: error-device@3000 {
+			compatible = "sifive,error0";
+			reg = <0x3000 0x1000>;
+		};
+		L1: interrupt-controller@2000000 {
+			#interrupt-cells = <1>;
+			compatible = "sifive,clic0";
+			interrupt-controller;
+			interrupts-extended = <&L3 3 &L3 7 &L3 11>;
+			reg = <0x2000000 0x1000000>;
+			reg-names = "control";
+			sifive,numints = <48>;
+			sifive,numlevels = <16>;
+                        sifive,numintbits = <2>;
+		};
+		L7: local-external-interrupts-0 {
+                        compatible = "sifive,local-external-interrupts0";
+			interrupt-parent = <&L1>;
+			interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31>;
+		};
+		L5: teststatus@4000 {
+			compatible = "sifive,test0";
+			reg = <0x4000 0x1000>;
+			reg-names = "control";
+		};
+                test_memory: testram@20000000 {
+                        compatible = "sifive,testram0";
+                        reg = <0x20000000 0x8000000>;
+                        reg-names = "mem";
+                        word-size-bytes = <4>;
+                };
+	};
+};
diff --git a/bsp/coreip-e20/metal.h b/bsp/coreip-e20/metal.h
new file mode 100644
index 0000000..e132a8e
--- /dev/null
+++ b/bsp/coreip-e20/metal.h
@@ -0,0 +1,215 @@
+#ifndef ASSEMBLY
+
+#ifndef COREIP_E20__METAL_H
+#define COREIP_E20__METAL_H
+
+#ifdef __METAL_MACHINE_MACROS
+
+#define __METAL_CLIC_SUBINTERRUPTS 48
+
+#ifndef __METAL_CLIC_SUBINTERRUPTS
+#define __METAL_CLIC_SUBINTERRUPTS 0
+#endif
+
+#else /* ! __METAL_MACHINE_MACROS */
+
+#define METAL_MAX_CLINT_INTERRUPTS 0
+
+#define METAL_MAX_PLIC_INTERRUPTS 0
+
+#define __METAL_INTERRUPT_CONTROLLER_2000000_INTERRUPTS 3
+
+#define __METAL_CLIC_SUBINTERRUPTS 48
+
+#define METAL_MAX_CLIC_INTERRUPTS 3
+
+#define __METAL_LOCAL_EXTERNAL_INTERRUPTS_0_INTERRUPTS 32
+
+#define METAL_MAX_LOCAL_EXT_INTERRUPTS 32
+
+#define METAL_MAX_GLOBAL_EXT_INTERRUPTS 0
+
+#define METAL_MAX_GPIO_INTERRUPTS 0
+
+#define METAL_MAX_UART_INTERRUPTS 0
+
+
+#include <metal/drivers/fixed-clock.h>
+#include <metal/drivers/riscv,cpu.h>
+#include <metal/pmp.h>
+#include <metal/drivers/sifive,clic0.h>
+#include <metal/drivers/sifive,local-external-interrupts0.h>
+#include <metal/drivers/sifive,test0.h>
+
+/* From cpu@0 */
+asm (".weak __metal_dt_cpu_0");
+struct __metal_driver_cpu __metal_dt_cpu_0;
+
+/* From interrupt_controller */
+asm (".weak __metal_dt_interrupt_controller");
+struct __metal_driver_riscv_cpu_intc __metal_dt_interrupt_controller;
+
+asm (".weak __metal_dt_pmp_0");
+struct metal_pmp __metal_dt_pmp_0;
+
+/* From interrupt_controller@2000000 */
+asm (".weak __metal_dt_interrupt_controller_2000000");
+struct __metal_driver_sifive_clic0 __metal_dt_interrupt_controller_2000000;
+
+/* From local_external_interrupts_0 */
+asm (".weak __metal_dt_local_external_interrupts_0");
+struct __metal_driver_sifive_local_external_interrupts0 __metal_dt_local_external_interrupts_0;
+
+/* From teststatus@4000 */
+asm (".weak __metal_dt_teststatus_4000");
+struct __metal_driver_sifive_test0 __metal_dt_teststatus_4000;
+
+
+/* From cpu@0 */
+struct __metal_driver_cpu __metal_dt_cpu_0 = {
+    .vtable = &__metal_driver_vtable_cpu,
+    .cpu.vtable = &__metal_driver_vtable_cpu.cpu_vtable,
+    .timebase = 1000000UL,
+    .interrupt_controller = &__metal_dt_interrupt_controller.controller,
+};
+
+/* From interrupt_controller */
+struct __metal_driver_riscv_cpu_intc __metal_dt_interrupt_controller = {
+    .vtable = &__metal_driver_vtable_riscv_cpu_intc,
+    .controller.vtable = &__metal_driver_vtable_riscv_cpu_intc.controller_vtable,
+    .init_done = 0,
+    .interrupt_controller = 1,
+};
+
+/* From pmp@0 */
+struct metal_pmp __metal_dt_pmp_0 = {
+    .num_regions = 8UL,
+};
+
+/* From interrupt_controller@2000000 */
+struct __metal_driver_sifive_clic0 __metal_dt_interrupt_controller_2000000 = {
+    .vtable = &__metal_driver_vtable_sifive_clic0,
+    .controller.vtable = &__metal_driver_vtable_sifive_clic0.clic_vtable,
+    .control_base = 33554432UL,
+    .control_size = 16777216UL,
+    .init_done = 0,
+    .num_interrupts = METAL_MAX_CLIC_INTERRUPTS,
+    .interrupt_parent = &__metal_dt_interrupt_controller.controller,
+    .interrupt_lines[0] = 3,
+    .interrupt_lines[1] = 7,
+    .interrupt_lines[2] = 11,
+    .num_subinterrupts = 48UL,
+    .num_intbits = 2UL,
+    .max_levels = 16UL,
+    .interrupt_controller = 1,
+};
+
+/* From local_external_interrupts_0 */
+struct __metal_driver_sifive_local_external_interrupts0 __metal_dt_local_external_interrupts_0 = {
+    .vtable = &__metal_driver_vtable_sifive_local_external_interrupts0,
+    .irc.vtable = &__metal_driver_vtable_sifive_local_external_interrupts0.local0_vtable,
+    .init_done = 0,
+/* From interrupt_controller@2000000 */
+    .interrupt_parent = &__metal_dt_interrupt_controller_2000000.controller,
+    .num_interrupts = METAL_MAX_LOCAL_EXT_INTERRUPTS,
+    .interrupt_lines[0] = 0,
+    .interrupt_lines[1] = 1,
+    .interrupt_lines[2] = 2,
+    .interrupt_lines[3] = 3,
+    .interrupt_lines[4] = 4,
+    .interrupt_lines[5] = 5,
+    .interrupt_lines[6] = 6,
+    .interrupt_lines[7] = 7,
+    .interrupt_lines[8] = 8,
+    .interrupt_lines[9] = 9,
+    .interrupt_lines[10] = 10,
+    .interrupt_lines[11] = 11,
+    .interrupt_lines[12] = 12,
+    .interrupt_lines[13] = 13,
+    .interrupt_lines[14] = 14,
+    .interrupt_lines[15] = 15,
+    .interrupt_lines[16] = 16,
+    .interrupt_lines[17] = 17,
+    .interrupt_lines[18] = 18,
+    .interrupt_lines[19] = 19,
+    .interrupt_lines[20] = 20,
+    .interrupt_lines[21] = 21,
+    .interrupt_lines[22] = 22,
+    .interrupt_lines[23] = 23,
+    .interrupt_lines[24] = 24,
+    .interrupt_lines[25] = 25,
+    .interrupt_lines[26] = 26,
+    .interrupt_lines[27] = 27,
+    .interrupt_lines[28] = 28,
+    .interrupt_lines[29] = 29,
+    .interrupt_lines[30] = 30,
+    .interrupt_lines[31] = 31,
+};
+
+/* From teststatus@4000 */
+struct __metal_driver_sifive_test0 __metal_dt_teststatus_4000 = {
+    .vtable = &__metal_driver_vtable_sifive_test0,
+    .shutdown.vtable = &__metal_driver_vtable_sifive_test0.shutdown,
+    .base = 16384UL,
+    .size = 4096UL,
+};
+
+
+/* From cpu@0 */
+#define __METAL_DT_RISCV_CPU_HANDLE (&__metal_dt_cpu_0.cpu)
+
+#define __METAL_DT_CPU_0_HANDLE (&__metal_dt_cpu_0.cpu)
+
+#define __METAL_DT_MAX_HARTS 1
+
+asm (".weak __metal_cpu_table");
+struct __metal_driver_cpu *__metal_cpu_table[] = {
+					&__metal_dt_cpu_0};
+
+/* From interrupt_controller */
+#define __METAL_DT_RISCV_CPU_INTC_HANDLE (&__metal_dt_interrupt_controller.controller)
+
+#define __METAL_DT_INTERRUPT_CONTROLLER_HANDLE (&__metal_dt_interrupt_controller.controller)
+
+/* From pmp@0 */
+#define __METAL_DT_PMP_HANDLE (&__metal_dt_pmp_0)
+
+/* From interrupt_controller@2000000 */
+#define __METAL_DT_SIFIVE_CLIC0_HANDLE (&__metal_dt_interrupt_controller_2000000.controller)
+
+#define __METAL_DT_INTERRUPT_CONTROLLER_2000000_HANDLE (&__metal_dt_interrupt_controller_2000000.controller)
+
+/* From local_external_interrupts_0 */
+#define __METAL_DT_SIFIVE_LOCAL_EXINTR0_HANDLE (&__metal_dt_local_external_interrupts_0.irc)
+
+#define __METAL_DT_LOCAL_EXTERNAL_INTERRUPTS_0_HANDLE (&__metal_dt_local_external_interrupts_0.irc)
+
+#define __METAL_DT_MAX_BUTTONS 0
+
+asm (".weak __metal_button_table");
+struct __metal_driver_sifive_gpio_button *__metal_button_table[] = {
+					NULL };
+#define __METAL_DT_MAX_LEDS 0
+
+asm (".weak __metal_led_table");
+struct __metal_driver_sifive_gpio_led *__metal_led_table[] = {
+					NULL };
+#define __METAL_DT_MAX_SWITCHES 0
+
+asm (".weak __metal_switch_table");
+struct __metal_driver_sifive_gpio_switch *__metal_switch_table[] = {
+					NULL };
+#define __METAL_DT_MAX_SPIS 0
+
+asm (".weak __metal_spi_table");
+struct __metal_driver_sifive_spi0 *__metal_spi_table[] = {
+					NULL };
+/* From teststatus@4000 */
+#define __METAL_DT_SHUTDOWN_HANDLE (&__metal_dt_teststatus_4000.shutdown)
+
+#define __METAL_DT_TESTSTATUS_4000_HANDLE (&__metal_dt_teststatus_4000.shutdown)
+
+
+#endif /* ! __METAL_MACHINE_MACROS */
+#endif /* COREIP_E20__METAL_H*/
+#endif /* ! ASSEMBLY */
diff --git a/bsp/coreip-e20/metal.lds b/bsp/coreip-e20/metal.lds
new file mode 100644
index 0000000..d98efc5
--- /dev/null
+++ b/bsp/coreip-e20/metal.lds
@@ -0,0 +1,223 @@
+OUTPUT_ARCH("riscv")
+
+ENTRY(_enter)
+
+MEMORY
+{
+	ram (wxa!ri) : ORIGIN = 0x20000000, LENGTH = 0x8000000
+}
+
+PHDRS
+{
+	flash PT_LOAD;
+	ram_init PT_LOAD;
+	itim_init PT_LOAD;
+	ram PT_LOAD;
+	itim PT_LOAD;
+}
+
+SECTIONS
+{
+	__stack_size = DEFINED(__stack_size) ? __stack_size : 0x400;
+	__heap_size = DEFINED(__heap_size) ? __heap_size : 0x400;
+
+
+	.init 		:
+	{
+		KEEP (*(.text.metal.init.enter))
+		KEEP (*(SORT_NONE(.init)))
+	} >ram AT>ram :ram
+
+
+	.text 		:
+	{
+		*(.text.unlikely .text.unlikely.*)
+		*(.text.startup .text.startup.*)
+		*(.text .text.*)
+		*(.itim .itim.*)
+		*(.gnu.linkonce.t.*)
+	} >ram AT>ram :ram
+
+
+	.fini 		:
+	{
+		KEEP (*(SORT_NONE(.fini)))
+	} >ram AT>ram :ram
+
+
+	PROVIDE (__etext = .);
+	PROVIDE (_etext = .);
+	PROVIDE (etext = .);
+
+
+	.rodata 		:
+	{
+		*(.rdata)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.r.*)
+	} >ram AT>ram :ram
+
+
+	. = ALIGN(4);
+
+
+	.preinit_array 		:
+	{
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP (*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.init_array 		:
+	{
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+		KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
+		PROVIDE_HIDDEN (__init_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.finit_array 		:
+	{
+		PROVIDE_HIDDEN (__finit_array_start = .);
+		KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
+		KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
+		PROVIDE_HIDDEN (__finit_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.ctors 		:
+	{
+		/* gcc uses crtbegin.o to find the start of
+		   the constructors, so we make sure it is
+		   first.  Because this is a wildcard, it
+		   doesn't matter if the user does not
+		   actually link against crtbegin.o; the
+		   linker won't look for a file to match a
+		   wildcard.  The wildcard also means that it
+		   doesn't matter which directory crtbegin.o
+		   is in.  */
+		KEEP (*crtbegin.o(.ctors))
+		KEEP (*crtbegin?.o(.ctors))
+		/* We don't want to include the .ctor section from
+		   the crtend.o file until after the sorted ctors.
+		   The .ctor section from the crtend file contains the
+		   end of ctors marker and it must be last */
+		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+		KEEP (*(SORT(.ctors.*)))
+		KEEP (*(.ctors))
+	} >ram AT>ram :ram
+
+
+	.dtors 		:
+	{
+		KEEP (*crtbegin.o(.dtors))
+		KEEP (*crtbegin?.o(.dtors))
+		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+		KEEP (*(SORT(.dtors.*)))
+		KEEP (*(.dtors))
+	} >ram AT>ram :ram
+
+
+	.litimalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_itim_source_start = . );
+	} >ram AT>ram :ram
+
+
+	.ditimalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_itim_target_start = . );
+	} >ram AT>ram :ram_init
+
+
+	.itim 		:
+	{
+	} >ram AT>ram :ram_init
+
+
+	. = ALIGN(8);
+	PROVIDE( metal_segment_itim_target_end = . );
+
+
+	.lalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( _data_lma = . );
+		PROVIDE( metal_segment_data_source_start = . );
+	} >ram AT>ram :ram
+
+
+	.dalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_data_target_start = . );
+	} >ram AT>ram :ram_init
+
+
+	.data 		:
+	{
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		. = ALIGN(8);
+		PROVIDE( __global_pointer$ = . + 0x800 );
+		*(.sdata .sdata.*)
+		*(.gnu.linkonce.s.*)
+		. = ALIGN(8);
+		*(.srodata.cst16)
+		*(.srodata.cst8)
+		*(.srodata.cst4)
+		*(.srodata.cst2)
+		*(.srodata .srodata.*)
+	} >ram AT>ram :ram_init
+
+
+	. = ALIGN(4);
+	PROVIDE( _edata = . );
+	PROVIDE( edata = . );
+	PROVIDE( metal_segment_data_target_end = . );
+	PROVIDE( _fbss = . );
+	PROVIDE( __bss_start = . );
+	PROVIDE( metal_segment_bss_target_start = . );
+
+
+	.bss 		:
+	{
+		*(.sbss*)
+		*(.gnu.linkonce.sb.*)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		. = ALIGN(4);
+	} >ram AT>ram :ram
+
+
+	. = ALIGN(8);
+	PROVIDE( _end = . );
+	PROVIDE( end = . );
+	PROVIDE( metal_segment_bss_target_end = . );
+
+
+	.stack :
+	{
+		PROVIDE(metal_segment_stack_begin = .);
+		. = __stack_size;
+		PROVIDE( _sp = . );
+		PROVIDE(metal_segment_stack_end = .);
+	} >ram AT>ram :ram
+
+
+	.heap :
+	{
+		PROVIDE( metal_segment_heap_target_start = . );
+		. = __heap_size;
+		PROVIDE( metal_segment_heap_target_end = . );
+		PROVIDE( _heap_end = . );
+	} >ram AT>ram :ram
+
+
+}
+
diff --git a/bsp/coreip-e20/settings.mk b/bsp/coreip-e20/settings.mk
new file mode 100644
index 0000000..50c6504
--- /dev/null
+++ b/bsp/coreip-e20/settings.mk
@@ -0,0 +1,5 @@
+#write_config_file
+
+RISCV_ARCH=rv32imc
+RISCV_ABI=ilp32
+COREIP_MEM_WIDTH=32
diff --git a/bsp/coreip-e21/design.dts b/bsp/coreip-e21/design.dts
new file mode 100644
index 0000000..4cd74ef
--- /dev/null
+++ b/bsp/coreip-e21/design.dts
@@ -0,0 +1,96 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "SiFive,FE210G-dev", "fe210-dev", "sifive-dev";
+	model = "SiFive,FE210G";
+	L14: cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		L4: cpu@0 {
+			clock-frequency = <0>;
+			compatible = "sifive,caboose0", "riscv";
+			device_type = "cpu";
+			reg = <0x0>;
+			riscv,isa = "rv32imac";
+			status = "okay";
+			timebase-frequency = <1000000>;
+                        hardware-exec-breakpoint-count = <4>;
+			L3: interrupt-controller {
+				#interrupt-cells = <1>;
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+			};
+		};
+	};
+	L13: soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "SiFive,FE210G-soc", "fe210-soc", "sifive-soc", "simple-bus";
+		ranges;
+ 		pmp: pmp@0 {
+ 			compatible = "riscv,pmp";
+ 			regions = <8>;
+ 		};
+		L11: ahb-periph-port@20000000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "sifive,ahb-periph-port", "sifive,ahb-port", "sifive,periph-port", "simple-bus";
+			ranges = <0x20000000 0x20000000 0x20000000>;
+		};
+		L10: ahb-sys-port@40000000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "sifive,ahb-sys-port", "sifive,ahb-port", "sifive,sys-port", "simple-bus";
+			ranges = <0x40000000 0x40000000 0x20000000>;
+		};
+		L2: debug-controller@0 {
+			compatible = "sifive,debug-013", "riscv,debug-013";
+			interrupts-extended = <&L3 65535>;
+			reg = <0x0 0x1000>;
+			reg-names = "control";
+		};
+		L0: error-device@3000 {
+			compatible = "sifive,error0";
+			reg = <0x3000 0x1000>;
+		};
+		L1: interrupt-controller@2000000 {
+			#interrupt-cells = <1>;
+			compatible = "sifive,clic0";
+			interrupt-controller;
+			interrupts-extended = <&L3 3 &L3 7 &L3 11>;
+			reg = <0x2000000 0x1000000>;
+			reg-names = "control";
+			sifive,numints = <143>;
+			sifive,numlevels = <16>;
+                        sifive,numintbits = <2>;
+		};
+		L9: local-external-interrupts-0 {
+                        compatible = "sifive,local-external-interrupts0";
+			interrupt-parent = <&L1>;
+			interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126>;
+		};
+		L6: sys-sram@80000000 {
+			compatible = "sifive,sram0";
+			reg = <0x80000000 0x8000>;
+			reg-names = "mem";
+		};
+		L7: sys-sram@80008000 {
+			compatible = "sifive,sram0";
+			reg = <0x80008000 0x8000>;
+			reg-names = "mem";
+		};
+		L5: teststatus@4000 {
+			compatible = "sifive,test0";
+			reg = <0x4000 0x1000>;
+			reg-names = "control";
+		};
+ 		test_memory: testram@20000000 {
+ 			compatible = "sifive,testram0";
+ 			reg = <0x20000000 0x8000000>;
+ 			reg-names = "mem";
+ 			word-size-bytes = <4>;
+		};
+	};
+};
diff --git a/bsp/coreip-e21/metal.h b/bsp/coreip-e21/metal.h
new file mode 100644
index 0000000..20efb49
--- /dev/null
+++ b/bsp/coreip-e21/metal.h
@@ -0,0 +1,310 @@
+#ifndef ASSEMBLY
+
+#ifndef COREIP_E21__METAL_H
+#define COREIP_E21__METAL_H
+
+#ifdef __METAL_MACHINE_MACROS
+
+#define __METAL_CLIC_SUBINTERRUPTS 143
+
+#ifndef __METAL_CLIC_SUBINTERRUPTS
+#define __METAL_CLIC_SUBINTERRUPTS 0
+#endif
+
+#else /* ! __METAL_MACHINE_MACROS */
+
+#define METAL_MAX_CLINT_INTERRUPTS 0
+
+#define METAL_MAX_PLIC_INTERRUPTS 0
+
+#define __METAL_INTERRUPT_CONTROLLER_2000000_INTERRUPTS 3
+
+#define __METAL_CLIC_SUBINTERRUPTS 143
+
+#define METAL_MAX_CLIC_INTERRUPTS 3
+
+#define __METAL_LOCAL_EXTERNAL_INTERRUPTS_0_INTERRUPTS 127
+
+#define METAL_MAX_LOCAL_EXT_INTERRUPTS 127
+
+#define METAL_MAX_GLOBAL_EXT_INTERRUPTS 0
+
+#define METAL_MAX_GPIO_INTERRUPTS 0
+
+#define METAL_MAX_UART_INTERRUPTS 0
+
+
+#include <metal/drivers/fixed-clock.h>
+#include <metal/drivers/riscv,cpu.h>
+#include <metal/pmp.h>
+#include <metal/drivers/sifive,clic0.h>
+#include <metal/drivers/sifive,local-external-interrupts0.h>
+#include <metal/drivers/sifive,test0.h>
+
+/* From cpu@0 */
+asm (".weak __metal_dt_cpu_0");
+struct __metal_driver_cpu __metal_dt_cpu_0;
+
+/* From interrupt_controller */
+asm (".weak __metal_dt_interrupt_controller");
+struct __metal_driver_riscv_cpu_intc __metal_dt_interrupt_controller;
+
+asm (".weak __metal_dt_pmp_0");
+struct metal_pmp __metal_dt_pmp_0;
+
+/* From interrupt_controller@2000000 */
+asm (".weak __metal_dt_interrupt_controller_2000000");
+struct __metal_driver_sifive_clic0 __metal_dt_interrupt_controller_2000000;
+
+/* From local_external_interrupts_0 */
+asm (".weak __metal_dt_local_external_interrupts_0");
+struct __metal_driver_sifive_local_external_interrupts0 __metal_dt_local_external_interrupts_0;
+
+/* From teststatus@4000 */
+asm (".weak __metal_dt_teststatus_4000");
+struct __metal_driver_sifive_test0 __metal_dt_teststatus_4000;
+
+
+/* From cpu@0 */
+struct __metal_driver_cpu __metal_dt_cpu_0 = {
+    .vtable = &__metal_driver_vtable_cpu,
+    .cpu.vtable = &__metal_driver_vtable_cpu.cpu_vtable,
+    .timebase = 1000000UL,
+    .interrupt_controller = &__metal_dt_interrupt_controller.controller,
+};
+
+/* From interrupt_controller */
+struct __metal_driver_riscv_cpu_intc __metal_dt_interrupt_controller = {
+    .vtable = &__metal_driver_vtable_riscv_cpu_intc,
+    .controller.vtable = &__metal_driver_vtable_riscv_cpu_intc.controller_vtable,
+    .init_done = 0,
+    .interrupt_controller = 1,
+};
+
+/* From pmp@0 */
+struct metal_pmp __metal_dt_pmp_0 = {
+    .num_regions = 8UL,
+};
+
+/* From interrupt_controller@2000000 */
+struct __metal_driver_sifive_clic0 __metal_dt_interrupt_controller_2000000 = {
+    .vtable = &__metal_driver_vtable_sifive_clic0,
+    .controller.vtable = &__metal_driver_vtable_sifive_clic0.clic_vtable,
+    .control_base = 33554432UL,
+    .control_size = 16777216UL,
+    .init_done = 0,
+    .num_interrupts = METAL_MAX_CLIC_INTERRUPTS,
+    .interrupt_parent = &__metal_dt_interrupt_controller.controller,
+    .interrupt_lines[0] = 3,
+    .interrupt_lines[1] = 7,
+    .interrupt_lines[2] = 11,
+    .num_subinterrupts = 143UL,
+    .num_intbits = 2UL,
+    .max_levels = 16UL,
+    .interrupt_controller = 1,
+};
+
+/* From local_external_interrupts_0 */
+struct __metal_driver_sifive_local_external_interrupts0 __metal_dt_local_external_interrupts_0 = {
+    .vtable = &__metal_driver_vtable_sifive_local_external_interrupts0,
+    .irc.vtable = &__metal_driver_vtable_sifive_local_external_interrupts0.local0_vtable,
+    .init_done = 0,
+/* From interrupt_controller@2000000 */
+    .interrupt_parent = &__metal_dt_interrupt_controller_2000000.controller,
+    .num_interrupts = METAL_MAX_LOCAL_EXT_INTERRUPTS,
+    .interrupt_lines[0] = 0,
+    .interrupt_lines[1] = 1,
+    .interrupt_lines[2] = 2,
+    .interrupt_lines[3] = 3,
+    .interrupt_lines[4] = 4,
+    .interrupt_lines[5] = 5,
+    .interrupt_lines[6] = 6,
+    .interrupt_lines[7] = 7,
+    .interrupt_lines[8] = 8,
+    .interrupt_lines[9] = 9,
+    .interrupt_lines[10] = 10,
+    .interrupt_lines[11] = 11,
+    .interrupt_lines[12] = 12,
+    .interrupt_lines[13] = 13,
+    .interrupt_lines[14] = 14,
+    .interrupt_lines[15] = 15,
+    .interrupt_lines[16] = 16,
+    .interrupt_lines[17] = 17,
+    .interrupt_lines[18] = 18,
+    .interrupt_lines[19] = 19,
+    .interrupt_lines[20] = 20,
+    .interrupt_lines[21] = 21,
+    .interrupt_lines[22] = 22,
+    .interrupt_lines[23] = 23,
+    .interrupt_lines[24] = 24,
+    .interrupt_lines[25] = 25,
+    .interrupt_lines[26] = 26,
+    .interrupt_lines[27] = 27,
+    .interrupt_lines[28] = 28,
+    .interrupt_lines[29] = 29,
+    .interrupt_lines[30] = 30,
+    .interrupt_lines[31] = 31,
+    .interrupt_lines[32] = 32,
+    .interrupt_lines[33] = 33,
+    .interrupt_lines[34] = 34,
+    .interrupt_lines[35] = 35,
+    .interrupt_lines[36] = 36,
+    .interrupt_lines[37] = 37,
+    .interrupt_lines[38] = 38,
+    .interrupt_lines[39] = 39,
+    .interrupt_lines[40] = 40,
+    .interrupt_lines[41] = 41,
+    .interrupt_lines[42] = 42,
+    .interrupt_lines[43] = 43,
+    .interrupt_lines[44] = 44,
+    .interrupt_lines[45] = 45,
+    .interrupt_lines[46] = 46,
+    .interrupt_lines[47] = 47,
+    .interrupt_lines[48] = 48,
+    .interrupt_lines[49] = 49,
+    .interrupt_lines[50] = 50,
+    .interrupt_lines[51] = 51,
+    .interrupt_lines[52] = 52,
+    .interrupt_lines[53] = 53,
+    .interrupt_lines[54] = 54,
+    .interrupt_lines[55] = 55,
+    .interrupt_lines[56] = 56,
+    .interrupt_lines[57] = 57,
+    .interrupt_lines[58] = 58,
+    .interrupt_lines[59] = 59,
+    .interrupt_lines[60] = 60,
+    .interrupt_lines[61] = 61,
+    .interrupt_lines[62] = 62,
+    .interrupt_lines[63] = 63,
+    .interrupt_lines[64] = 64,
+    .interrupt_lines[65] = 65,
+    .interrupt_lines[66] = 66,
+    .interrupt_lines[67] = 67,
+    .interrupt_lines[68] = 68,
+    .interrupt_lines[69] = 69,
+    .interrupt_lines[70] = 70,
+    .interrupt_lines[71] = 71,
+    .interrupt_lines[72] = 72,
+    .interrupt_lines[73] = 73,
+    .interrupt_lines[74] = 74,
+    .interrupt_lines[75] = 75,
+    .interrupt_lines[76] = 76,
+    .interrupt_lines[77] = 77,
+    .interrupt_lines[78] = 78,
+    .interrupt_lines[79] = 79,
+    .interrupt_lines[80] = 80,
+    .interrupt_lines[81] = 81,
+    .interrupt_lines[82] = 82,
+    .interrupt_lines[83] = 83,
+    .interrupt_lines[84] = 84,
+    .interrupt_lines[85] = 85,
+    .interrupt_lines[86] = 86,
+    .interrupt_lines[87] = 87,
+    .interrupt_lines[88] = 88,
+    .interrupt_lines[89] = 89,
+    .interrupt_lines[90] = 90,
+    .interrupt_lines[91] = 91,
+    .interrupt_lines[92] = 92,
+    .interrupt_lines[93] = 93,
+    .interrupt_lines[94] = 94,
+    .interrupt_lines[95] = 95,
+    .interrupt_lines[96] = 96,
+    .interrupt_lines[97] = 97,
+    .interrupt_lines[98] = 98,
+    .interrupt_lines[99] = 99,
+    .interrupt_lines[100] = 100,
+    .interrupt_lines[101] = 101,
+    .interrupt_lines[102] = 102,
+    .interrupt_lines[103] = 103,
+    .interrupt_lines[104] = 104,
+    .interrupt_lines[105] = 105,
+    .interrupt_lines[106] = 106,
+    .interrupt_lines[107] = 107,
+    .interrupt_lines[108] = 108,
+    .interrupt_lines[109] = 109,
+    .interrupt_lines[110] = 110,
+    .interrupt_lines[111] = 111,
+    .interrupt_lines[112] = 112,
+    .interrupt_lines[113] = 113,
+    .interrupt_lines[114] = 114,
+    .interrupt_lines[115] = 115,
+    .interrupt_lines[116] = 116,
+    .interrupt_lines[117] = 117,
+    .interrupt_lines[118] = 118,
+    .interrupt_lines[119] = 119,
+    .interrupt_lines[120] = 120,
+    .interrupt_lines[121] = 121,
+    .interrupt_lines[122] = 122,
+    .interrupt_lines[123] = 123,
+    .interrupt_lines[124] = 124,
+    .interrupt_lines[125] = 125,
+    .interrupt_lines[126] = 126,
+};
+
+/* From teststatus@4000 */
+struct __metal_driver_sifive_test0 __metal_dt_teststatus_4000 = {
+    .vtable = &__metal_driver_vtable_sifive_test0,
+    .shutdown.vtable = &__metal_driver_vtable_sifive_test0.shutdown,
+    .base = 16384UL,
+    .size = 4096UL,
+};
+
+
+/* From cpu@0 */
+#define __METAL_DT_RISCV_CPU_HANDLE (&__metal_dt_cpu_0.cpu)
+
+#define __METAL_DT_CPU_0_HANDLE (&__metal_dt_cpu_0.cpu)
+
+#define __METAL_DT_MAX_HARTS 1
+
+asm (".weak __metal_cpu_table");
+struct __metal_driver_cpu *__metal_cpu_table[] = {
+					&__metal_dt_cpu_0};
+
+/* From interrupt_controller */
+#define __METAL_DT_RISCV_CPU_INTC_HANDLE (&__metal_dt_interrupt_controller.controller)
+
+#define __METAL_DT_INTERRUPT_CONTROLLER_HANDLE (&__metal_dt_interrupt_controller.controller)
+
+/* From pmp@0 */
+#define __METAL_DT_PMP_HANDLE (&__metal_dt_pmp_0)
+
+/* From interrupt_controller@2000000 */
+#define __METAL_DT_SIFIVE_CLIC0_HANDLE (&__metal_dt_interrupt_controller_2000000.controller)
+
+#define __METAL_DT_INTERRUPT_CONTROLLER_2000000_HANDLE (&__metal_dt_interrupt_controller_2000000.controller)
+
+/* From local_external_interrupts_0 */
+#define __METAL_DT_SIFIVE_LOCAL_EXINTR0_HANDLE (&__metal_dt_local_external_interrupts_0.irc)
+
+#define __METAL_DT_LOCAL_EXTERNAL_INTERRUPTS_0_HANDLE (&__metal_dt_local_external_interrupts_0.irc)
+
+#define __METAL_DT_MAX_BUTTONS 0
+
+asm (".weak __metal_button_table");
+struct __metal_driver_sifive_gpio_button *__metal_button_table[] = {
+					NULL };
+#define __METAL_DT_MAX_LEDS 0
+
+asm (".weak __metal_led_table");
+struct __metal_driver_sifive_gpio_led *__metal_led_table[] = {
+					NULL };
+#define __METAL_DT_MAX_SWITCHES 0
+
+asm (".weak __metal_switch_table");
+struct __metal_driver_sifive_gpio_switch *__metal_switch_table[] = {
+					NULL };
+#define __METAL_DT_MAX_SPIS 0
+
+asm (".weak __metal_spi_table");
+struct __metal_driver_sifive_spi0 *__metal_spi_table[] = {
+					NULL };
+/* From teststatus@4000 */
+#define __METAL_DT_SHUTDOWN_HANDLE (&__metal_dt_teststatus_4000.shutdown)
+
+#define __METAL_DT_TESTSTATUS_4000_HANDLE (&__metal_dt_teststatus_4000.shutdown)
+
+
+#endif /* ! __METAL_MACHINE_MACROS */
+#endif /* COREIP_E21__METAL_H*/
+#endif /* ! ASSEMBLY */
diff --git a/bsp/coreip-e21/metal.lds b/bsp/coreip-e21/metal.lds
new file mode 100644
index 0000000..d98efc5
--- /dev/null
+++ b/bsp/coreip-e21/metal.lds
@@ -0,0 +1,223 @@
+OUTPUT_ARCH("riscv")
+
+ENTRY(_enter)
+
+MEMORY
+{
+	ram (wxa!ri) : ORIGIN = 0x20000000, LENGTH = 0x8000000
+}
+
+PHDRS
+{
+	flash PT_LOAD;
+	ram_init PT_LOAD;
+	itim_init PT_LOAD;
+	ram PT_LOAD;
+	itim PT_LOAD;
+}
+
+SECTIONS
+{
+	__stack_size = DEFINED(__stack_size) ? __stack_size : 0x400;
+	__heap_size = DEFINED(__heap_size) ? __heap_size : 0x400;
+
+
+	.init 		:
+	{
+		KEEP (*(.text.metal.init.enter))
+		KEEP (*(SORT_NONE(.init)))
+	} >ram AT>ram :ram
+
+
+	.text 		:
+	{
+		*(.text.unlikely .text.unlikely.*)
+		*(.text.startup .text.startup.*)
+		*(.text .text.*)
+		*(.itim .itim.*)
+		*(.gnu.linkonce.t.*)
+	} >ram AT>ram :ram
+
+
+	.fini 		:
+	{
+		KEEP (*(SORT_NONE(.fini)))
+	} >ram AT>ram :ram
+
+
+	PROVIDE (__etext = .);
+	PROVIDE (_etext = .);
+	PROVIDE (etext = .);
+
+
+	.rodata 		:
+	{
+		*(.rdata)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.r.*)
+	} >ram AT>ram :ram
+
+
+	. = ALIGN(4);
+
+
+	.preinit_array 		:
+	{
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP (*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.init_array 		:
+	{
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
+		KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
+		PROVIDE_HIDDEN (__init_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.finit_array 		:
+	{
+		PROVIDE_HIDDEN (__finit_array_start = .);
+		KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
+		KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
+		PROVIDE_HIDDEN (__finit_array_end = .);
+	} >ram AT>ram :ram
+
+
+	.ctors 		:
+	{
+		/* gcc uses crtbegin.o to find the start of
+		   the constructors, so we make sure it is
+		   first.  Because this is a wildcard, it
+		   doesn't matter if the user does not
+		   actually link against crtbegin.o; the
+		   linker won't look for a file to match a
+		   wildcard.  The wildcard also means that it
+		   doesn't matter which directory crtbegin.o
+		   is in.  */
+		KEEP (*crtbegin.o(.ctors))
+		KEEP (*crtbegin?.o(.ctors))
+		/* We don't want to include the .ctor section from
+		   the crtend.o file until after the sorted ctors.
+		   The .ctor section from the crtend file contains the
+		   end of ctors marker and it must be last */
+		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+		KEEP (*(SORT(.ctors.*)))
+		KEEP (*(.ctors))
+	} >ram AT>ram :ram
+
+
+	.dtors 		:
+	{
+		KEEP (*crtbegin.o(.dtors))
+		KEEP (*crtbegin?.o(.dtors))
+		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+		KEEP (*(SORT(.dtors.*)))
+		KEEP (*(.dtors))
+	} >ram AT>ram :ram
+
+
+	.litimalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_itim_source_start = . );
+	} >ram AT>ram :ram
+
+
+	.ditimalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_itim_target_start = . );
+	} >ram AT>ram :ram_init
+
+
+	.itim 		:
+	{
+	} >ram AT>ram :ram_init
+
+
+	. = ALIGN(8);
+	PROVIDE( metal_segment_itim_target_end = . );
+
+
+	.lalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( _data_lma = . );
+		PROVIDE( metal_segment_data_source_start = . );
+	} >ram AT>ram :ram
+
+
+	.dalign 		:
+	{
+		. = ALIGN(4);
+		PROVIDE( metal_segment_data_target_start = . );
+	} >ram AT>ram :ram_init
+
+
+	.data 		:
+	{
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		. = ALIGN(8);
+		PROVIDE( __global_pointer$ = . + 0x800 );
+		*(.sdata .sdata.*)
+		*(.gnu.linkonce.s.*)
+		. = ALIGN(8);
+		*(.srodata.cst16)
+		*(.srodata.cst8)
+		*(.srodata.cst4)
+		*(.srodata.cst2)
+		*(.srodata .srodata.*)
+	} >ram AT>ram :ram_init
+
+
+	. = ALIGN(4);
+	PROVIDE( _edata = . );
+	PROVIDE( edata = . );
+	PROVIDE( metal_segment_data_target_end = . );
+	PROVIDE( _fbss = . );
+	PROVIDE( __bss_start = . );
+	PROVIDE( metal_segment_bss_target_start = . );
+
+
+	.bss 		:
+	{
+		*(.sbss*)
+		*(.gnu.linkonce.sb.*)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		. = ALIGN(4);
+	} >ram AT>ram :ram
+
+
+	. = ALIGN(8);
+	PROVIDE( _end = . );
+	PROVIDE( end = . );
+	PROVIDE( metal_segment_bss_target_end = . );
+
+
+	.stack :
+	{
+		PROVIDE(metal_segment_stack_begin = .);
+		. = __stack_size;
+		PROVIDE( _sp = . );
+		PROVIDE(metal_segment_stack_end = .);
+	} >ram AT>ram :ram
+
+
+	.heap :
+	{
+		PROVIDE( metal_segment_heap_target_start = . );
+		. = __heap_size;
+		PROVIDE( metal_segment_heap_target_end = . );
+		PROVIDE( _heap_end = . );
+	} >ram AT>ram :ram
+
+
+}
+
diff --git a/bsp/coreip-e21/settings.mk b/bsp/coreip-e21/settings.mk
new file mode 100644
index 0000000..0c818ec
--- /dev/null
+++ b/bsp/coreip-e21/settings.mk
@@ -0,0 +1,5 @@
+#write_config_file
+
+RISCV_ARCH=rv32imac
+RISCV_ABI=ilp32
+COREIP_MEM_WIDTH=32