paul@0 | 1 | /* |
paul@0 | 2 | * Ben NanoNote stage 1 payload test. |
paul@0 | 3 | * |
paul@0 | 4 | * Copyright (C) 2015 Paul Boddie <paul@boddie.org.uk> |
paul@0 | 5 | * Copyright (C) Wolfgang Spraul <wolfgang@sharism.cc> |
paul@0 | 6 | * |
paul@0 | 7 | * This program is free software; you can redistribute it and/or modify it under |
paul@0 | 8 | * the terms of the GNU General Public License as published by the Free Software |
paul@0 | 9 | * Foundation; either version 3 of the License, or (at your option) any later |
paul@0 | 10 | * version. |
paul@0 | 11 | * |
paul@0 | 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
paul@0 | 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
paul@0 | 14 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
paul@0 | 15 | * details. |
paul@0 | 16 | * |
paul@0 | 17 | * You should have received a copy of the GNU General Public License along with |
paul@0 | 18 | * this program. If not, see <http://www.gnu.org/licenses/>. |
paul@0 | 19 | */ |
paul@0 | 20 | |
paul@0 | 21 | #include "jz4740.h" |
paul@0 | 22 | #include "board-nanonote.h" |
paul@2 | 23 | #include "usb_boot_defines.h" |
paul@0 | 24 | |
paul@0 | 25 | struct fw_args *fw_args; |
paul@0 | 26 | volatile u32 CPU_ID; |
paul@0 | 27 | volatile u32 UART_BASE; |
paul@0 | 28 | volatile u32 CONFIG_BAUDRATE; |
paul@0 | 29 | volatile u8 SDRAM_BW16; |
paul@0 | 30 | volatile u8 SDRAM_BANK4; |
paul@0 | 31 | volatile u8 SDRAM_ROW; |
paul@0 | 32 | volatile u8 SDRAM_COL; |
paul@0 | 33 | volatile u8 CONFIG_MOBILE_SDRAM; |
paul@0 | 34 | volatile u32 CFG_CPU_SPEED; |
paul@0 | 35 | volatile u32 CFG_EXTAL; |
paul@0 | 36 | volatile u8 PHM_DIV; |
paul@0 | 37 | volatile u8 IS_SHARE; |
paul@0 | 38 | |
paul@0 | 39 | void load_args(void) |
paul@0 | 40 | { |
paul@0 | 41 | fw_args = (struct fw_args *)0x80002008; /* get the fw args from memory */ |
paul@0 | 42 | CPU_ID = fw_args->cpu_id ; |
paul@0 | 43 | CFG_EXTAL = (u32)fw_args->ext_clk * 1000000; |
paul@0 | 44 | CFG_CPU_SPEED = (u32)fw_args->cpu_speed * CFG_EXTAL ; |
paul@0 | 45 | if (CFG_EXTAL == 19000000) { |
paul@0 | 46 | CFG_EXTAL = 19200000; |
paul@0 | 47 | CFG_CPU_SPEED = 192000000; |
paul@0 | 48 | } |
paul@0 | 49 | PHM_DIV = fw_args->phm_div; |
paul@0 | 50 | UART_BASE = UART0_BASE + fw_args->use_uart * 0x1000; |
paul@0 | 51 | CONFIG_BAUDRATE = fw_args->boudrate; |
paul@0 | 52 | SDRAM_BW16 = fw_args->bus_width; |
paul@0 | 53 | SDRAM_BANK4 = fw_args->bank_num; |
paul@0 | 54 | SDRAM_ROW = fw_args->row_addr; |
paul@0 | 55 | SDRAM_COL = fw_args->col_addr; |
paul@0 | 56 | CONFIG_MOBILE_SDRAM = fw_args->is_mobile; |
paul@0 | 57 | IS_SHARE = fw_args->is_busshare; |
paul@0 | 58 | } |
paul@0 | 59 | |
paul@0 | 60 | void c_main(void) |
paul@0 | 61 | { |
paul@0 | 62 | load_args(); |
paul@0 | 63 | gpio_init(); |
paul@0 | 64 | pll_init(); |
paul@0 | 65 | sdram_init(); |
paul@0 | 66 | } |