mirror of
https://github.com/tpunix/HMCLOCK.git
synced 2025-12-06 08:12:48 +08:00
412 lines
9.9 KiB
C
412 lines
9.9 KiB
C
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#include "epd.h"
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#define SPI_CTRL0 *(volatile unsigned short*)(0x50001200)
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#define SPI_RXTX0 *(volatile unsigned short*)(0x50001202)
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#define SPI_RXTX1 *(volatile unsigned short*)(0x50001204)
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#define SPI_IACK *(volatile unsigned short*)(0x50001206)
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#define SPI_CTRL1 *(volatile unsigned short*)(0x50001208)
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static int spio_clk;
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static int spio_cs;
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static int spio_di;
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static int spio_do;
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#define BIT_8 0
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#define BIT_16 1
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#define BIT_32 2
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static int spi_bitmode;
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/******************************************************************************/
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#define FSPI_CS(n) gpio_set(spio_cs, (n));
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void fspi_set_bitmode(int mode)
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{
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spi_bitmode = mode;
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SPI_CTRL0 &= 0xfe7e;
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SPI_CTRL0 |= (mode&3)<<7;
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SPI_CTRL0 |= 0x0001;
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}
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int fspi_trans(int data)
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{
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if(spi_bitmode==BIT_32){
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SPI_RXTX1 = data>>16;
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}
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SPI_RXTX0 = data;
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while((SPI_CTRL0&0x2000)==0);
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SPI_IACK = 0;
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data = SPI_RXTX0;
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if(spi_bitmode==BIT_8){
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data &= 0xff;
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}else if(spi_bitmode==BIT_32){
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data |= (SPI_RXTX1)<<16;
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}
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return data;
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}
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int fspi_config(u32 gpio_word)
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{
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spio_clk = (gpio_word>>24)&0xff;
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spio_cs = (gpio_word>>16)&0xff;
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spio_do = (gpio_word>> 8)&0xff;
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spio_di = (gpio_word>> 0)&0xff;
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return 0;
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}
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int fspi_init(void)
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{
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SetBits16(CLK_PER_REG, SPI_ENABLE, 1);
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gpio_config(spio_cs, 0x0300, 1);
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gpio_config(spio_clk, 0x0307, 0);
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gpio_config(spio_do, 0x0306, 1);
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gpio_config(spio_di, 0x0105, 1);
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SPI_CTRL0 = 0x0010;
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fspi_set_bitmode(BIT_32);
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FSPI_CS(0);
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fspi_trans(0xab000000);
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FSPI_CS(1);
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return 0;
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}
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int fspi_exit(void)
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{
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SPI_CTRL0 = 0;
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SetBits16(CLK_PER_REG, SPI_ENABLE, 0);
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gpio_config(spio_cs, 0x0300, 1);
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gpio_config(spio_clk, 0x0300, 0);
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gpio_config(spio_do, 0x0300, 0);
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gpio_config(spio_di, 0x0100, 0);
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return 0;
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}
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/******************************************************************************/
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/* SPI flash */
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/******************************************************************************/
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int sf_readid(void)
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{
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fspi_set_bitmode(BIT_32);
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FSPI_CS(0);
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fspi_trans(0x90000000);
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int id = fspi_trans(0);
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FSPI_CS(1);
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return __REV(id);
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}
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int sf_status(void)
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{
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int status;
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fspi_set_bitmode(BIT_16);
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FSPI_CS(0);
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status = fspi_trans(0x0500);
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FSPI_CS(1);
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return status;
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}
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int sf_wstat(int stat)
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{
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// status write enable
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fspi_set_bitmode(BIT_8);
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FSPI_CS(0);
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fspi_trans(0x50);
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FSPI_CS(1);
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fspi_set_bitmode(BIT_16);
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FSPI_CS(0);
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fspi_trans(0x0100|stat);
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FSPI_CS(1);
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return 0;
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}
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int sf_wen(int en)
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{
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fspi_set_bitmode(BIT_8);
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FSPI_CS(0);
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if(en)
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fspi_trans(0x06);
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else
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fspi_trans(0x04);
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FSPI_CS(1);
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return 0;
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}
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int sf_wait()
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{
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int status;
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while(1){
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status = sf_status();
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if((status&1)==0)
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break;
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}
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return 0;
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}
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int sf_sector_erase(int cmd, int addr, int wait)
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{
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sf_wen(1);
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fspi_set_bitmode(BIT_32);
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FSPI_CS(0);
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fspi_trans((cmd<<24)|addr);
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FSPI_CS(1);
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if(wait)
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sf_wait();
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return 0;
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}
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int sf_erase(int addr, int size, int wait)
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{
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while(size){
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if((addr%0x8000)==0 && size<=0x8000){
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sf_sector_erase(ERASE_32K, addr, wait);
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addr += 0x8000;
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size -= 0x8000;
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}else{
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sf_sector_erase(ERASE_4K, addr, wait);
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addr += 0x1000;
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size -= 0x1000;
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}
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}
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return 0;
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}
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int sf_page_write(int addr, u8 *buf, int size)
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{
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int i;
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sf_wen(1);
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fspi_set_bitmode(BIT_32);
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FSPI_CS(0);
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fspi_trans(0x02000000|addr);
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for(i=0; i<size; i+=4){
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int data = *(u32*)(buf+i);
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fspi_trans(__REV(data));
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}
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FSPI_CS(1);
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return 0;
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}
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int sf_read(int addr, int len, u8 *buf)
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{
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int i;
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fspi_set_bitmode(BIT_32);
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FSPI_CS(0);
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fspi_trans(0x03000000|addr);
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for(i=0; i<len; i+=4){
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int data = fspi_trans(0);
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*(u32*)(buf+i) = __REV(data);
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}
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FSPI_CS(1);
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return len;
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}
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/******************************************************************************/
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static const uint32_t crc32_tab[] = {
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
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0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
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0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
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0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
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0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
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0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
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0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
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0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
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0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
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0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
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0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
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0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
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0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
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0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
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0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
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0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
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0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
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0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
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0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
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0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
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0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
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0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
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0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
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0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
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0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
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0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
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0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
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0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
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0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
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0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
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0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
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0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
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0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
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};
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uint32_t crc32(uint32_t crc, const void *buf, size_t size)
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{
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const uint8_t *p;
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p = buf;
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crc = crc ^ ~0U;
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while (size--)
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crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
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return crc ^ ~0U;
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}
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/******************************************************************************/
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extern int Region$$Table$$Base;
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int selflash(int otp_boot)
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{
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u8 pbuf[256];
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u32 *p32 = (u32*)pbuf;
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int image_addr[2];
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int image_flag[2];
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fspi_init();
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int id = sf_readid();
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printk("Flash ID: %08x\n", id);
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int region_table = (int)&Region$$Table$$Base;
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int firm_size = *(u32*)(region_table+0x10) - 0x07fc0000;
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printk("Firm size: %08x\n", firm_size);
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u32 firm_crc = crc32(0, (u8*)0x07fc0000, firm_size);
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printk("Firm crc: %08x\n", firm_crc);
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memset(pbuf, 0, 256);
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if(otp_boot==0x1234a5a5){
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// 从OTP启动。读product header。
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sf_read(0x38000, 16, pbuf);
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if(pbuf[0]!=0x70 || pbuf[1]!=0x52){
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printk("Build Product header ...\n");
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p32[0] = 0x00005270;
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p32[1] = 0x00004000;
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p32[2] = 0x0001f000;
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sf_sector_erase(ERASE_4K, 0x38000, 1);
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sf_page_write(0x38000, pbuf, 12);
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sf_wait();
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}
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image_addr[0] = p32[1];
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image_addr[1] = p32[2];
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// 读image header
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sf_read(image_addr[0], 16, pbuf+0 );
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sf_read(image_addr[0], 16, pbuf+16);
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printk("Product iamge0: %08x: %08x %08x %08x\n", image_addr[0], __REV(p32[0]), p32[1], p32[2]);
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printk(" iamge1: %08x: %08x %08x %08x\n", image_addr[1], __REV(p32[4]), p32[5], p32[6]);
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// 获取当前使用的image的id
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image_flag[0] = -1;
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image_flag[1] = -1;
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if(pbuf[ 0]==0x70 && pbuf[ 1]==0x51 && pbuf[ 2]==0xaa){
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image_flag[0] = (signed char)pbuf[ 3];
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}
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if(pbuf[16]==0x70 && pbuf[17]==0x51 && pbuf[18]==0xaa){
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image_flag[1] = (signed char)pbuf[19];
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}
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int active = (image_flag[0]>=image_flag[1]) ? 0 : 1;
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printk("Active image: %d flag: %02x\n", active, image_flag[active]);
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if(firm_crc != p32[active*4+2]){
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// 当前运行的固件与flash中的固件不同
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// 将当前固件写入非活动的image中
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int new_flag = image_flag[active]+1;
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int new_id = active^1;
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// 擦除flash
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printk("Erase %08x ...\n", image_addr[new_id]);
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sf_erase(image_addr[new_id], firm_size+64, 1);
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// 初始化image header
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memset(pbuf, 0xff, 64);
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p32[0] = (new_flag<<24)|0x00aa5170;
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p32[1] = firm_size;
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p32[2] = firm_crc;
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pbuf[0x20] = 0;
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// 写入flash
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u8 *firm_data = (u8*)0x07fc0000;
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int addr = image_addr[new_id];
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for(int i=0; i<firm_size+64; i+=256){
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printk("Write %08x ...\n", addr);
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if(i){
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memcpy(pbuf, firm_data, 256);
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firm_data += 256;
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}else{
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memcpy(pbuf+64, firm_data, 192);
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firm_data += 192;
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}
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sf_page_write(addr, pbuf, 256);
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sf_wait();
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addr += 256;
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}
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printk("Firm update done.\n\n");
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}
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}else{
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// 从Flash启动。读Boot header。
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sf_read(0, 16, pbuf);
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printk("Boot Header: %08x %08x\n", *(u32*)(pbuf+0), *(u32*)(pbuf+4));
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}
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fspi_exit();
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return 0;
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}
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/******************************************************************************/
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