mirror of
git://projects.qi-hardware.com/xburst-tools.git
synced 2024-11-01 20:21:54 +02:00
113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
/*
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* main.c
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*
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* Main routine of the firmware.
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*
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* Copyright (C) 2008 Ingenic Semiconductor Inc.
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*
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*/
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#include "jz4740.h"
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#include "configs.h"
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fw_args_t * fw_args;
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volatile u32 CPU_ID;
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volatile u32 UART_BASE;
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volatile u32 CONFIG_BAUDRATE;
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volatile u8 SDRAM_BW16;
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volatile u8 SDRAM_BANK4;
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volatile u8 SDRAM_ROW;
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volatile u8 SDRAM_COL;
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volatile u8 CONFIG_MOBILE_SDRAM;
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volatile u32 CFG_CPU_SPEED;
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volatile u32 CFG_EXTAL;
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volatile u8 PHM_DIV;
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volatile u8 IS_SHARE;
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extern int pllout2;
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#if 0
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void test_load_args(void)
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{
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CPU_ID = 0x4740 ;
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CFG_EXTAL = 12000000 ;
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CFG_CPU_SPEED = 336000000 ;
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PHM_DIV = 4;
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fw_args->use_uart = 0;
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UART_BASE = UART0_BASE + fw_args->use_uart * 0x1000;
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CONFIG_BAUDRATE = 57600;
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SDRAM_BW16 = 0;
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SDRAM_BANK4 = 1;
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SDRAM_ROW = 13;
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SDRAM_COL = 9;
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CONFIG_MOBILE_SDRAM = 0;
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IS_SHARE = 1;
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}
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#endif
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void load_args(void)
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{
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fw_args = (fw_args_t *)0x80002008; //get the fw args from memory
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CPU_ID = fw_args->cpu_id ;
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CFG_EXTAL = (u32)fw_args->ext_clk * 1000000;
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CFG_CPU_SPEED = (u32)fw_args->cpu_speed * CFG_EXTAL ;
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if (CFG_EXTAL == 19000000)
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{
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CFG_EXTAL = 19200000;
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CFG_CPU_SPEED = 192000000;
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}
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PHM_DIV = fw_args->phm_div;
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if ( fw_args->use_uart > 3 ) fw_args->use_uart = 0;
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UART_BASE = UART0_BASE + fw_args->use_uart * 0x1000;
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CONFIG_BAUDRATE = fw_args->boudrate;
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SDRAM_BW16 = fw_args->bus_width;
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SDRAM_BANK4 = fw_args->bank_num;
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SDRAM_ROW = fw_args->row_addr;
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SDRAM_COL = fw_args->col_addr;
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CONFIG_MOBILE_SDRAM = fw_args->is_mobile;
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IS_SHARE = fw_args->is_busshare;
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}
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void c_main(void)
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{
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load_args();
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if (fw_args->debug_ops > 0)
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{
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do_debug();
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return ;
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}
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switch (CPU_ID)
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{
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case 0x4740:
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gpio_init_4740();
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pll_init_4740();
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serial_init();
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sdram_init_4740();
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break;
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case 0x4750:
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gpio_init_4750();
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pll_init_4750();
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serial_init();
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sdram_init_4750();
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break;
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default:
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return;
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}
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#if 1
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serial_puts("Setup fw args as:\n");
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serial_put_hex(CPU_ID);
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serial_put_hex(CFG_EXTAL);
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serial_put_hex(CFG_CPU_SPEED);
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serial_put_hex(PHM_DIV);
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serial_put_hex(fw_args->use_uart);
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serial_put_hex(CONFIG_BAUDRATE);
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serial_put_hex(SDRAM_BW16);
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serial_put_hex(SDRAM_BANK4);
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serial_put_hex(SDRAM_ROW);
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serial_put_hex(SDRAM_COL);
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serial_put_hex(pllout2);
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serial_put_hex(REG_CPM_CPCCR);
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serial_puts("Fw run finish !\n");
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#endif
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}
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