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-rw-r--r--bsp/coreip-e20/README.md6
-rw-r--r--bsp/coreip-e20/design.dts72
-rw-r--r--bsp/coreip-e20/metal.h204
-rw-r--r--bsp/coreip-e20/metal.lds223
-rw-r--r--bsp/coreip-e20/settings.mk5
5 files changed, 510 insertions, 0 deletions
diff --git a/bsp/coreip-e20/README.md b/bsp/coreip-e20/README.md
new file mode 100644
index 0000000..f908327
--- /dev/null
+++ b/bsp/coreip-e20/README.md
@@ -0,0 +1,6 @@
+The SiFive E20 Standard Core is an extremely efficient implementation of the E2 Series configured for very low area and power. The E20 brings the power of the RISC-V software ecosystem to efficiently address traditional 8-bit and 32-bit microcontroller applications such as IoT, Analog Mixed Signal, and Programmable Finite State Machines.
+
+This core target is suitable with Verilog RTL for verification and running application software building on top of freedom-metal libraries. The target supports:
+
+- 1 hart with RV32IMC core
+- 4 hardware breakpoints
diff --git a/bsp/coreip-e20/design.dts b/bsp/coreip-e20/design.dts
new file mode 100644
index 0000000..d57c342
--- /dev/null
+++ b/bsp/coreip-e20/design.dts
@@ -0,0 +1,72 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "SiFive,FE200G-dev", "fe200-dev", "sifive-dev";
+ model = "SiFive,FE200G";
+ L10: cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ L3: 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>;
+ L2: interrupt-controller {
+ #interrupt-cells = <1>;
+ compatible = "riscv,cpu-intc";
+ interrupt-controller;
+ };
+ };
+ };
+ L9: soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "SiFive,FE200G-soc", "fe200-soc", "sifive-soc", "simple-bus";
+ ranges;
+ L7: 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>;
+ };
+ L1: debug-controller@0 {
+ compatible = "sifive,debug-013", "riscv,debug-013";
+ interrupts-extended = <&L2 65535>;
+ reg = <0x0 0x1000>;
+ reg-names = "control";
+ };
+ L0: interrupt-controller@2000000 {
+ #interrupt-cells = <1>;
+ compatible = "sifive,clic0";
+ interrupt-controller;
+ interrupts-extended = <&L2 3 &L2 7 &L2 11>;
+ reg = <0x2000000 0x1000000>;
+ reg-names = "control";
+ sifive,numints = <48>;
+ sifive,numlevels = <16>;
+ sifive,numintbits = <2>;
+ };
+ L6: local-external-interrupts-0 {
+ compatible = "sifive,local-external-interrupts0";
+ interrupt-parent = <&L0>;
+ 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>;
+ };
+ L4: 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..5693e03
--- /dev/null
+++ b/bsp/coreip-e20/metal.h
@@ -0,0 +1,204 @@
+#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;
+
+/* 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 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 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 23:07:54 +0000