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more work on linux upsilon

This commit is contained in:
Peter McGoron 2023-05-30 16:01:32 -04:00
parent 67b07516cf
commit be03d68e6f
6 changed files with 31 additions and 170 deletions
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1
.gitignore vendored
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@ -16,7 +16,6 @@ firmware/rtl/control_loop/control_loop_cmds.h
firmware/rtl/raster/ram_shim_cmds.h firmware/rtl/raster/ram_shim_cmds.h
firmware/rtl/raster/raster_cmds.h firmware/rtl/raster/raster_cmds.h
firmware/rtl/base/base.v firmware/rtl/base/base.v
firmware/rtl/control_loop/boothmul.v
firmware/rtl/control_loop/control_loop.v firmware/rtl/control_loop/control_loop.v
firmware/rtl/control_loop/control_loop_cmds.vh firmware/rtl/control_loop/control_loop_cmds.vh
firmware/rtl/control_loop/control_loop_math.v firmware/rtl/control_loop/control_loop_math.v

12
firmware/Makefile
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@ -6,14 +6,16 @@ all: rtl_codegen build/digilent_arty/digilent_arty.bit overlay.dts overlay.cmake
rtl_codegen: rtl_codegen:
cd rtl && make cd rtl && make
build/digilent_arty/digilent_arty.bit: soc.py csr.json build/digilent_arty/digilent_arty.bit: soc.py
python3 soc.py python3 soc.py
clean: clean:
rm -rf build csr.json overlay.config overlay.dts pin_io.h rm -rf build csr.json overlay.config overlay.dts pin_io.h arty.dts arty.dtb
cd rtl && make clean cd rtl && make clean
overlay.dts overlay.cmake: csr.json litex_json2dts_zephyr.py
# NOTE: Broken in LiteX 2022.4. arty.dts: csr.json
$(DEVICETREE_GEN_DIR)/litex_json2dts_zephyr.py --dts overlay.dts --config overlay.cmake csr.json litex_json2dts_linux.py csr.json > arty.dts
arty.dtb: arty.dts
dtc -O dtb -o arty.dtb arty.dts
pin_io.c: csr.json generate_csr_locations.py pin_io.c: csr.json generate_csr_locations.py
python3 generate_csr_locations.py > pin_io.c python3 generate_csr_locations.py > pin_io.c

6
firmware/soc.py
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@ -1,3 +1,4 @@
##########################################################################
# Portions of this file incorporate code licensed under the # Portions of this file incorporate code licensed under the
# BSD 2-Clause License. # BSD 2-Clause License.
# #
@ -30,6 +31,7 @@
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##########################################################################
# There is nothing fundamental about the Arty A7(35|100)T to this # There is nothing fundamental about the Arty A7(35|100)T to this
# design, but another eval board will require some porting. # design, but another eval board will require some porting.
@ -221,7 +223,7 @@ class _CRG(Module):
if with_dram: if with_dram:
self.submodules.idelayctrl = S7IDELAYCTRL(self.cd_idelay) self.submodules.idelayctrl = S7IDELAYCTRL(self.cd_idelay)
class CryoSNOM1SoC(SoCCore): class UpsilonSoC(SoCCore):
def __init__(self, variant): def __init__(self, variant):
sys_clk_freq = int(100e6) sys_clk_freq = int(100e6)
platform = board_spec.Platform(variant=variant, toolchain="f4pga") platform = board_spec.Platform(variant=variant, toolchain="f4pga")
@ -291,7 +293,7 @@ class CryoSNOM1SoC(SoCCore):
self.submodules.base = Base(ClockSignal(), self.sdram, platform) self.submodules.base = Base(ClockSignal(), self.sdram, platform)
def main(): def main():
soc = CryoSNOM1SoC("a7-100") soc =UpsilonSoC("a7-100")
builder = Builder(soc, csr_json="csr.json", compile_software=True) builder = Builder(soc, csr_json="csr.json", compile_software=True)
builder.build() builder.build()

30
opensbi/litex/vexriscv/config.mk
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@ -1,30 +0,0 @@
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2020 Florent Kermarrec <florent@enjoy-digital.fr>
# Copyright (c) 2020 Dolu1990 <charles.papon.90@gmail.com>
#
# Compiler flags
platform-cppflags-y =
platform-cflags-y =
platform-asflags-y =
platform-ldflags-y =
# Command for platform specific "make run"
platform-runcmd = echo LiteX/VexRiscv SMP
PLATFORM_RISCV_XLEN = 32
PLATFORM_RISCV_ABI = ilp32
PLATFORM_RISCV_ISA = rv32ima
PLATFORM_RISCV_CODE_MODEL = medany
# Blobs to build
FW_TEXT_START=0x40F00000
FW_DYNAMIC=y
FW_JUMP=y
FW_JUMP_ADDR=0x40000000
FW_JUMP_FDT_ADDR=0x40EF0000
FW_PAYLOAD=y
FW_PAYLOAD_OFFSET=0x40000000
FW_PAYLOAD_FDT_ADDR=0x40EF0000

67
opensbi/litex/vexriscv/litex.c
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@ -1,67 +0,0 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Florent Kermarrec <florent@enjoy-digital.fr>
* Copyright (c) 2020 Dolu1990 <charles.papon.90@gmail.com>
*
*/
#include <stdint.h>
#define UART_EV_TX 0x1
#define UART_EV_RX 0x2
#define MMPTR(a) (*((volatile uint32_t *)(a)))
static inline void csr_write_simple(unsigned long v, unsigned long a)
{
MMPTR(a) = v;
}
static inline unsigned long csr_read_simple(unsigned long a)
{
return MMPTR(a);
}
#define CSR_BASE 0xf0000000L
static inline uint8_t uart_rxtx_read(void) {
return csr_read_simple(CSR_BASE + 0x1000L);
}
static inline void uart_rxtx_write(uint8_t v) {
csr_write_simple(v, CSR_BASE + 0x1000L);
}
static inline uint8_t uart_txfull_read(void) {
return csr_read_simple(CSR_BASE + 0x1004L);
}
static inline uint8_t uart_rxempty_read(void) {
return csr_read_simple(CSR_BASE + 0x1008L);
}
static inline void uart_ev_pending_write(uint8_t v) {
csr_write_simple(v, CSR_BASE + 0x1010L);
}
static inline uint8_t uart_txempty_read(void) {
return csr_read_simple(CSR_BASE + 0x1018L);
}
static inline uint8_t uart_rxfull_read(void) {
return csr_read_simple(CSR_BASE + 0x101cL);
}
void vex_putc(char c){
while (uart_txfull_read());
uart_rxtx_write(c);
uart_ev_pending_write(UART_EV_TX);
}
int vex_getc(void){
char c;
if (uart_rxempty_read()) return -1;
c = uart_rxtx_read();
uart_ev_pending_write(UART_EV_RX);
return c;
}

85
opensbi/litex/vexriscv/platform.c
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@ -11,55 +11,30 @@
#include <sbi/sbi_const.h> #include <sbi/sbi_const.h>
#include <sbi/sbi_hart.h> #include <sbi/sbi_hart.h>
#include <sbi/sbi_platform.h> #include <sbi/sbi_platform.h>
#include <sbi_utils/irqchip/plic.h> #include <sbi_utils/serial/litex_serial.h>
#include <sbi_utils/serial/uart8250.h>
#include <sbi_utils/sys/clint.h> #include <sbi_utils/sys/clint.h>
/* clang-format off */ /* clang-format off */
#define VEX_HART_COUNT 8 #define VEX_HART_COUNT 1
#define VEX_PLATFORM_FEATURES (SBI_PLATFORM_HAS_TIMER_VALUE | SBI_PLATFORM_HAS_MFAULTS_DELEGATION) #define VEX_PLATFORM_FEATURES (SBI_PLATFORM_HAS_TIMER_VALUE | SBI_PLATFORM_HAS_MFAULTS_DELEGATION)
#define VEX_CLINT_ADDR 0xF0010000 #define VEX_CLINT_ADDR 0xF0010000
#define VEX_HART_STACK_SIZE 8192 #define VEX_HART_STACK_SIZE SBI_PLATFORM_DEFAULT_STACK_SIZE
/* clang-format on */ /* clang-format on */
static struct clint_data clint = {VEX_CLINT_ADDR, 0, VEX_HART_COUNT, true}; static struct clint_data clint = {VEX_CLINT_ADDR, 0, VEX_HART_COUNT, true};
static int vex_early_init(bool cold_boot)
{
return 0;
}
static int vex_final_init(bool cold_boot) static int vex_final_init(bool cold_boot)
{ {
return 0; return 0;
} }
static u32 vex_pmp_region_count(u32 hartid)
{
return 0;
}
static int vex_pmp_region_info(u32 hartid, u32 index, ulong *prot, ulong *addr,
ulong *log2size)
{
int ret = 0;
switch (index) {
default:
ret = -1;
break;
};
return ret;
}
extern void vex_putc(char ch);
extern int vex_getc(void);
static int vex_console_init(void)
{
return 0;
}
static int vex_irqchip_init(bool cold_boot) static int vex_irqchip_init(bool cold_boot)
{ {
return 0; return 0;
@ -90,41 +65,21 @@ static int vex_timer_init(bool cold_boot)
return clint_warm_timer_init(); return clint_warm_timer_init();
} }
static int vex_system_reset(u32 type)
{
/* Tell the "finisher" that the simulation
* was successful so that QEMU exits
*/
return 0;
}
const struct sbi_platform_operations platform_ops = { const struct sbi_platform_operations platform_ops = {
.pmp_region_count = vex_pmp_region_count, .early_init = vex_early_init,
.pmp_region_info = vex_pmp_region_info, .final_init = vex_final_init,
.final_init = vex_final_init, .irqchip_init = vex_irqchip_init,
.console_putc = vex_putc, .ipi_init = vex_ipi_init,
.console_getc = vex_getc, .timer_init = vex_timer_init
.console_init = vex_console_init,
.irqchip_init = vex_irqchip_init,
.ipi_send = clint_ipi_send,
.ipi_clear = clint_ipi_clear,
.ipi_init = vex_ipi_init,
.timer_value = clint_timer_value,
.timer_event_stop = clint_timer_event_stop,
.timer_event_start = clint_timer_event_start,
.timer_init = vex_timer_init,
.system_reset = vex_system_reset
}; };
const struct sbi_platform platform = { const struct sbi_platform platform = {
.opensbi_version = OPENSBI_VERSION, .opensbi_version = OPENSBI_VERSION,
.platform_version = SBI_PLATFORM_VERSION(0x0, 0x01), .platform_version = SBI_PLATFORM_VERSION(0x0, 0x01),
.name = "LiteX / VexRiscv-SMP", .name = "LiteX / VexRiscv",
.features = VEX_PLATFORM_FEATURES, .features = VEX_PLATFORM_FEATURES,
.hart_count = VEX_HART_COUNT, .hart_count = VEX_HART_COUNT,
.hart_stack_size = VEX_HART_STACK_SIZE, .hart_stack_size = VEX_HART_STACK_SIZE,
.platform_ops_addr = (unsigned long)&platform_ops .platform_ops_addr = (unsigned long)&platform_ops
}; };