mirror of
git://projects.qi-hardware.com/xburst-tools.git
synced 2024-11-25 22:15:55 +02:00
76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
//
|
|
// Authors: Wolfgang Spraul <wolfgang@sharism.cc>
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version
|
|
// 3 of the License, or (at your option) any later version.
|
|
//
|
|
|
|
#include "common.h"
|
|
#include "serial.h"
|
|
|
|
extern void gpio_init_4740();
|
|
extern void pll_init_4740();
|
|
extern void serial_init_4740(int uart);
|
|
extern void sdram_init_4740();
|
|
extern void nand_init_4740();
|
|
|
|
extern void gpio_init_4760();
|
|
extern void pll_init_4760();
|
|
extern void cpm_start_all_4760();
|
|
extern void serial_init_4760(int uart);
|
|
extern void sdram_init_4760();
|
|
extern void nand_init_4760();
|
|
|
|
void load_args_4740()
|
|
{
|
|
ARG_EXTAL = 12 * 1000000;
|
|
ARG_CPU_SPEED = 21 * ARG_EXTAL;
|
|
ARG_PHM_DIV = 3;
|
|
ARG_UART_BAUD = 57600;
|
|
ARG_BUS_WIDTH_16 = * (int *)0x80002014;
|
|
ARG_BANK_ADDR_2BIT = 1;
|
|
ARG_ROW_ADDR = 13;
|
|
ARG_COL_ADDR = 9;
|
|
}
|
|
|
|
void c_main(void)
|
|
{
|
|
ARG_CPU_ID = * (int *)0x80002008;
|
|
|
|
switch (ARG_CPU_ID) {
|
|
case 0x4740:
|
|
load_args_4740();
|
|
gpio_init_4740();
|
|
serial_init_4740(0);
|
|
pll_init_4740();
|
|
sdram_init_4740();
|
|
nand_init_4740();
|
|
serial_puts("Ben NanoNote\n");
|
|
break;
|
|
case 0x4760:
|
|
gpio_init_4760();
|
|
cpm_start_all_4760();
|
|
serial_init_4760(1);
|
|
pll_init_4760();
|
|
sdram_init_4760();
|
|
nand_init_4760();
|
|
serial_puts("JZ4760 EVB lepus\n");
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
serial_puts("GPIO, clocks, SDRAM, UART setup\n"
|
|
"now jump back to BOOT ROM...\n");
|
|
|
|
if (ARG_CPU_ID == 0x4760) {
|
|
__asm__ (
|
|
"li $31, 0xbfc012e0 \n\t"
|
|
"jr $31 \n\t "
|
|
);
|
|
}
|
|
}
|
|
|