| 1 | // |
| 2 | // Authors: Wolfgang Spraul <wolfgang@sharism.cc> |
| 3 | // |
| 4 | // This program is free software; you can redistribute it and/or |
| 5 | // modify it under the terms of the GNU General Public License |
| 6 | // as published by the Free Software Foundation; either version |
| 7 | // 3 of the License, or (at your option) any later version. |
| 8 | // |
| 9 | |
| 10 | #include "common.h" |
| 11 | #include "serial.h" |
| 12 | |
| 13 | extern void gpio_init_4740(); |
| 14 | extern void pll_init_4740(); |
| 15 | extern void serial_init_4740(int uart); |
| 16 | extern void sdram_init_4740(); |
| 17 | extern void nand_init_4740(); |
| 18 | |
| 19 | extern void gpio_init_4760(); |
| 20 | extern void pll_init_4760(); |
| 21 | extern void cpm_start_all_4760(); |
| 22 | extern void serial_init_4760(int uart); |
| 23 | extern void sdram_init_4760(); |
| 24 | extern void nand_init_4760(); |
| 25 | |
| 26 | void load_args_4740() |
| 27 | { |
| 28 | ARG_EXTAL = 12 * 1000000; |
| 29 | ARG_CPU_SPEED = 21 * ARG_EXTAL; |
| 30 | ARG_PHM_DIV = 3; |
| 31 | ARG_UART_BAUD = 57600; |
| 32 | ARG_BUS_WIDTH_16 = * (int *)0x80002014; |
| 33 | ARG_BANK_ADDR_2BIT = 1; |
| 34 | ARG_ROW_ADDR = 13; |
| 35 | ARG_COL_ADDR = 9; |
| 36 | } |
| 37 | |
| 38 | void c_main(void) |
| 39 | { |
| 40 | ARG_CPU_ID = * (int *)0x80002008; |
| 41 | |
| 42 | switch (ARG_CPU_ID) { |
| 43 | case 0x4740: |
| 44 | load_args_4740(); |
| 45 | gpio_init_4740(); |
| 46 | serial_init_4740(0); |
| 47 | pll_init_4740(); |
| 48 | sdram_init_4740(); |
| 49 | nand_init_4740(); |
| 50 | serial_puts("Ben NanoNote\n"); |
| 51 | break; |
| 52 | case 0x4760: |
| 53 | gpio_init_4760(); |
| 54 | cpm_start_all_4760(); |
| 55 | serial_init_4760(1); |
| 56 | pll_init_4760(); |
| 57 | sdram_init_4760(); |
| 58 | nand_init_4760(); |
| 59 | serial_puts("JZ4760 EVB lepus\n"); |
| 60 | break; |
| 61 | default: |
| 62 | return; |
| 63 | } |
| 64 | |
| 65 | serial_puts("GPIO, clocks, SDRAM, UART setup\n" |
| 66 | "now jump back to BOOT ROM...\n"); |
| 67 | |
| 68 | if (ARG_CPU_ID == 0x4760) { |
| 69 | __asm__ ( |
| 70 | "li $31, 0xbfc012e0 \n\t" |
| 71 | "jr $31 \n\t " |
| 72 | ); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | |
