| /* |
| * SPDX-FileCopyrightText: 2020 Efabless Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| // This include is relative to $CARAVEL_PATH (see Makefile) |
| #include "verilog/dv/caravel/defs.h" |
| #include "verilog/dv/caravel/stub.c" |
| |
| // User Project Slaves (0x3000_0000) |
| |
| #define reg_mprj_wbhost_reg0 (*(volatile uint32_t*)0x30800000) |
| |
| #define reg_mprj_globl_reg0 (*(volatile uint32_t*)0x30000000) |
| #define reg_mprj_globl_reg1 (*(volatile uint32_t*)0x30000004) |
| #define reg_mprj_globl_reg2 (*(volatile uint32_t*)0x30000008) |
| #define reg_mprj_globl_reg3 (*(volatile uint32_t*)0x3000000C) |
| #define reg_mprj_globl_reg4 (*(volatile uint32_t*)0x30000010) |
| #define reg_mprj_globl_reg5 (*(volatile uint32_t*)0x30000014) |
| #define reg_mprj_globl_reg6 (*(volatile uint32_t*)0x30000018) |
| #define reg_mprj_globl_reg7 (*(volatile uint32_t*)0x3000001C) |
| #define reg_mprj_globl_reg8 (*(volatile uint32_t*)0x30000020) |
| #define reg_mprj_globl_reg9 (*(volatile uint32_t*)0x30000024) |
| #define reg_mprj_globl_reg10 (*(volatile uint32_t*)0x30000028) |
| #define reg_mprj_globl_reg11 (*(volatile uint32_t*)0x3000002C) |
| #define reg_mprj_globl_reg12 (*(volatile uint32_t*)0x30000030) |
| #define reg_mprj_globl_reg13 (*(volatile uint32_t*)0x30000034) |
| #define reg_mprj_globl_reg14 (*(volatile uint32_t*)0x30000038) |
| #define reg_mprj_globl_reg15 (*(volatile uint32_t*)0x3000003C) |
| |
| #define reg_mprj_uart_reg0 (*(volatile uint32_t*)0x30010000) |
| #define reg_mprj_uart_reg1 (*(volatile uint32_t*)0x30010004) |
| #define reg_mprj_uart_reg2 (*(volatile uint32_t*)0x30010008) |
| #define reg_mprj_uart_reg3 (*(volatile uint32_t*)0x3001000C) |
| #define reg_mprj_uart_reg4 (*(volatile uint32_t*)0x30010010) |
| #define reg_mprj_uart_reg5 (*(volatile uint32_t*)0x30010014) |
| #define reg_mprj_uart_reg6 (*(volatile uint32_t*)0x30010018) |
| #define reg_mprj_uart_reg7 (*(volatile uint32_t*)0x3001001C) |
| #define reg_mprj_uart_reg8 (*(volatile uint32_t*)0x30010020) |
| |
| #define GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP 0x1C00 |
| |
| #define SC_SIM_OUTPORT (0xf0000000) |
| |
| /* |
| RiscV Hello World test. |
| - Wake up the Risc V |
| - Boot from SPI Flash |
| - Riscv Write Hello World to SDRAM, |
| - External Wishbone read back validation the data |
| */ |
| int i = 0; |
| int clk = 0; |
| |
| void main() |
| { |
| |
| int bFail = 0; |
| /* |
| IO Control Registers |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | |
| Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_USER_STD_OUTPUT |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | |
| |
| |
| Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| |
| Input: 0000_0001_0000_1111 (0x1800) = GPIO_MODE_USER_STD_BIDIRECTIONAL |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| */ |
| |
| /* Set up the housekeeping SPI to be connected internally so */ |
| /* that external pin changes don't affect it. */ |
| |
| reg_spimaster_config = 0xa002; // Enable, prescaler = 2, |
| // connect to housekeeping SPI |
| |
| // Connect the housekeeping SPI to the SPI master |
| // so that the CSB line is not left floating. This allows |
| // all of the GPIO pins to be used for user functions. |
| reg_mprj_io_31 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_30 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_29 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_28 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_27 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_26 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_25 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_24 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_23 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_22 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_21 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_20 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_19 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_18 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_17 = GPIO_MODE_MGMT_STD_OUTPUT; |
| reg_mprj_io_16 = GPIO_MODE_MGMT_STD_OUTPUT; |
| |
| |
| /* Apply configuration */ |
| reg_mprj_xfer = 1; |
| while (reg_mprj_xfer == 1); |
| |
| reg_la2_oenb = reg_la2_iena = 0xFFFFFFFF; // [95:64] |
| |
| // Flag start of the test |
| reg_mprj_datal = 0xAB600000; |
| |
| //----------------------------------------------------- |
| // Start of User Functionality and take over the GPIO Pins |
| // ------------------------------------------------------ |
| // User block decide on the GPIO function |
| reg_mprj_io_37 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_36 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_35 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_34 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_33 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_32 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_31 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_30 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_29 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_28 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_27 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_26 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_25 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_24 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_23 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_22 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_21 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_20 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_19 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_18 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_17 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_16 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_15 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_14 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_13 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_12 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_11 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_10 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_9 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_8 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_7 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_6 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_5 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_4 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_3 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_2 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_1 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| reg_mprj_io_0 = GPIO_MODE_USER_STD_BIDIRECTIONAL_PULLUP; |
| |
| /* Apply configuration */ |
| reg_mprj_xfer = 1; |
| while (reg_mprj_xfer == 1); |
| |
| // Remove Wishbone Reset |
| reg_mprj_wbhost_reg0 = 0x1; |
| |
| // SDRAM Config-2 |
| reg_mprj_globl_reg5 = 0x100019E; |
| |
| |
| // SDRAM Config-1 |
| reg_mprj_globl_reg4 = 0x2F172242; |
| |
| // Remove All Reset |
| reg_mprj_wbhost_reg0 = 0x1F; |
| |
| |
| // configure the user uart |
| reg_mprj_uart_reg0 = 0x7; |
| |
| } |