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git://projects.qi-hardware.com/xburst-tools.git
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68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
#ifndef _CONFIGS_H
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#define _CONFIGS_H
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//Here are these common definitions
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//Once your system configration change,just modify the file
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#define CONFIG_NR_DRAM_BANKS 1 /* SDRAM BANK Number: 1, 2*/
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#define SDRAM_CASL 3 /* CAS latency: 2 or 3 */
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// SDRAM Timings, unit: ns
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#define SDRAM_TRAS 45 /* RAS# Active Time */
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#define SDRAM_RCD 20 /* RAS# to CAS# Delay */
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#define SDRAM_TPC 20 /* RAS# Precharge Time */
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#define SDRAM_TRWL 7 /* Write Latency Time */
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#define SDRAM_TREF 15625 /* Refresh period: 4096 refresh cycles/64ms */
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extern volatile u32 CPU_ID;
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extern volatile u8 SDRAM_BW16;
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extern volatile u8 SDRAM_BANK4;
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extern volatile u8 SDRAM_ROW;
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extern volatile u8 SDRAM_COL;
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extern volatile u8 CONFIG_MOBILE_SDRAM;
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extern volatile u32 CFG_CPU_SPEED;
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extern volatile u8 PHM_DIV;
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extern volatile u32 CFG_EXTAL;
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extern volatile u32 CONFIG_BAUDRATE;
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extern volatile u32 UART_BASE;
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extern volatile u8 CONFIG_MOBILE_SDRAM;
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extern volatile u8 IS_SHARE;
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typedef struct {
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/* CPU ID */
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unsigned int cpu_id;
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/* PLL args */
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unsigned char ext_clk;
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unsigned char cpu_speed;
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unsigned char phm_div;
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unsigned char use_uart;
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unsigned int boudrate;
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/* SDRAM args */
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unsigned char bus_width;
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unsigned char bank_num;
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unsigned char row_addr;
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unsigned char col_addr;
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unsigned char is_mobile;
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unsigned char is_busshare;
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/* debug args */
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unsigned char debug_ops;
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unsigned char pin_num;
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unsigned int start;
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unsigned int size;
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}fw_args_t;
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extern void gpio_init_4740(void);
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extern void sdram_init_4740(void);
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extern void serial_init_4740(void);
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extern void pll_init_4740(void);
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extern void gpio_init_4750(void);
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extern void sdram_init_4750(void);
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extern void serial_init_4750(void);
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extern void pll_init_4750(void);
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extern void serial_puts(const char *s);
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#endif
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