karef.c

gumstiz u-boot loader in linux

		"Serial Number: %d\n", sernum);
	printf ("%s\n", KAREF_U_BOOT_REL_STR);

	printf ("Built %s %s by %s\n", __DATE__, __TIME__, BUILDUSER);
	if (sbcommon_get_master()) {
		printf("Slot 0 - Master\nSlave board");
		if (sbcommon_secondary_present())
			printf(" present\n");
		else
			printf(" not detected\n");
	} else {
		printf("Slot 1 - Slave\n\n");
	}

	printf ("ScanFPGA ID:\t0x%02X\tRev:  0x%02X\n", scan_id, scan_rev);
	printf ("Board Rev:\t0x%02X\tID:   0x%02X\n", brd_rev, brd_id);
	if(0xF != ofem_brd_id) {
		printf("OFemFPGA ID:\t0x%02X\tRev:  0x%02X\n", ofem_id, ofem_rev);
		printf("OFEM Board Rev:\t0x%02X\tID:   0x%02X\n", ofem_brd_id, ofem_brd_rev);
	}

	/* Fix the ack in the bme 32 */
	udelay(5000);
	out32(CFG_BME32_BASE + 0x0000000C, 0x00000001);
	asm("eieio");


	return (0);
}

/*************************************************************************
 *  misc_init_f
 *
 *  Initialize I2C bus one to gain access to the fans
 ************************************************************************/
int misc_init_f (void)
{
	/* Turn on i2c bus 1 */
	puts ("I2C1:  ");
	i2c1_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
	puts ("ready\n");

	/* Turn on fans 3 & 4 */
	sbcommon_fans();

	return (0);
}

/*************************************************************************
 *  misc_init_r
 *
 *  Do nothing.
 ************************************************************************/
int misc_init_r (void)
{
	unsigned short sernum;
	char envstr[255];
	KAREF_FPGA_REGS_ST *karef_ps;
	OFEM_FPGA_REGS_ST *ofem_ps;

	if(NULL != getenv("secondserial")) {
		puts("secondserial is set, switching to second serial port\n");
		setenv("stderr", "serial1");
		setenv("stdout", "serial1");
		setenv("stdin", "serial1");
	}

	setenv("ubrelver", KAREF_U_BOOT_REL_STR);

	memset(envstr, 0, 255);
	sprintf (envstr, "Built %s %s by %s", __DATE__, __TIME__, BUILDUSER);
	setenv("bldstr", envstr);
	saveenv();

	if( getenv("autorecover")) {
		setenv("autorecover", NULL);
		saveenv();
		sernum = sbcommon_get_serial_number();

		printf("\nSetting up environment for automatic filesystem recovery\n");
		/*
		 * Setup default bootargs
		 */
		memset(envstr, 0, 255);

		sprintf(envstr, "console=ttyS0,9600 root=/dev/ram0 "
			"rw ip=10.100.70.%d:::255.255.0.0:karef%d:eth0:none idebus=33",
			sernum, sernum);
		setenv("bootargs", envstr);

		/*
		 * Setup Default boot command
		 */
		setenv("bootcmd", "fatload ide 0 8000000 uimage.karef;"
		       "fatload ide 0 8100000 pramdisk;"
		       "bootm 8000000 8100000");

		printf("Done.  Please type allow the system to continue to boot\n");
	}

	if( getenv("fakeled")) {
		karef_ps = (KAREF_FPGA_REGS_ST *)CFG_KAREF_FPGA_BASE;
		ofem_ps = (OFEM_FPGA_REGS_ST *)CFG_OFEM_FPGA_BASE;
		ofem_ps->control_ul &= ~SAND_HAL_KA_SC_SCAN_CNTL_FAULT_LED_MASK;
		karef_ps->control_ul &= ~SAND_HAL_KA_OF_OFEM_CNTL_FAULT_LED_MASK;
		setenv("bootdelay", "-1");
		saveenv();
		printf("fakeled is set. use 'setenv fakeled ; setenv bootdelay 5 ; saveenv' to recover\n");
	}

	return (0);
}

/*************************************************************************
 *  ide_set_reset
 ************************************************************************/
#ifdef CONFIG_IDE_RESET
void ide_set_reset(int on)
{
	KAREF_FPGA_REGS_ST *karef_ps;
	/* TODO: ide reset */
	karef_ps = (KAREF_FPGA_REGS_ST *)CFG_KAREF_FPGA_BASE;

	if (on) {
		karef_ps->reset_ul &= ~SAND_HAL_KA_SC_SCAN_RESET_CF_RESET_N_MASK;
	} else {
		karef_ps->reset_ul |= SAND_HAL_KA_SC_SCAN_RESET_CF_RESET_N_MASK;
	}
}
#endif /* CONFIG_IDE_RESET */

/*************************************************************************
 *  fpga_init
 ************************************************************************/
void fpga_init(void)
{
	KAREF_FPGA_REGS_ST *karef_ps;
	OFEM_FPGA_REGS_ST *ofem_ps;
	unsigned char ofem_id;
	unsigned long tmp;

	/* Ensure we have power all around */
	udelay(500);

	karef_ps = (KAREF_FPGA_REGS_ST *)CFG_KAREF_FPGA_BASE;
	tmp =
		SAND_HAL_KA_SC_SCAN_RESET_CF_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_BME_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_KA_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_SLAVE_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_OFEM_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_IFE_A_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_I2C_MUX1_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_PHY0_RESET_N_MASK |
		SAND_HAL_KA_SC_SCAN_RESET_PHY1_RESET_N_MASK;

	karef_ps->reset_ul = tmp;

	/*
	 * Wait a bit to allow the ofem fpga to get its brains
	 */
	udelay(5000);

	/*
	 * Check to see if the ofem is there
	 */
	ofem_id = (unsigned char)((karef_ps->boardinfo_ul & SAND_HAL_KA_SC_SCAN_BRD_INFO_FEM_ID_MASK)
				  >> SAND_HAL_KA_SC_SCAN_BRD_INFO_FEM_ID_SHIFT);
	if(0xF != ofem_id) {
		tmp =
			SAND_HAL_KA_OF_OFEM_RESET_I2C_MUX0_RESET_N_MASK |
			SAND_HAL_KA_OF_OFEM_RESET_LOCH0_RESET_N_MASK |
			SAND_HAL_KA_OF_OFEM_RESET_MAC0_RESET_N_MASK;

		ofem_ps = (OFEM_FPGA_REGS_ST *)CFG_OFEM_FPGA_BASE;
		ofem_ps->reset_ul = tmp;

		ofem_ps->control_ul |= 1 < SAND_HAL_KA_OF_OFEM_CNTL_FAULT_LED_SHIFT;
	}

	karef_ps->control_ul |= 1 << SAND_HAL_KA_SC_SCAN_CNTL_FAULT_LED_SHIFT;

	asm("eieio");

	return;
}

int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	unsigned short sernum;
	char envstr[255];

	sernum = sbcommon_get_serial_number();

	memset(envstr, 0, 255);
	/*
	 * Setup our ip address
	 */
	sprintf(envstr, "10.100.70.%d", sernum);

	setenv("ipaddr", envstr);
	/*
	 * Setup the host ip address
	 */
	setenv("serverip", "10.100.17.10");

	/*
	 * Setup default bootargs
	 */
	memset(envstr, 0, 255);

	sprintf(envstr, "console=ttyS0,9600 root=/dev/nfs "
		"rw nfsroot=10.100.17.10:/home/metrobox/mbc70.%d "
		"nfsaddrs=10.100.70.%d:10.100.17.10:10.100.1.1:"
		"255.255.0.0:karef%d.sandburst.com:eth0:none idebus=33",
		sernum, sernum, sernum);

	setenv("bootargs_nfs", envstr);
	setenv("bootargs", envstr);

	/*
	 * Setup CF bootargs
	 */
	memset(envstr, 0, 255);

	sprintf(envstr, "console=ttyS0,9600 root=/dev/hda2 "
		"rw ip=10.100.70.%d:::255.255.0.0:karef%d:eth0:none idebus=33",
		sernum, sernum);

	setenv("bootargs_cf", envstr);

	/*
	 * Setup Default boot command
	 */
	setenv("bootcmd_tftp", "tftp 8000000 uImage.karef;bootm 8000000");
	setenv("bootcmd", "tftp 8000000 uImage.karef;bootm 8000000");

	/*
	 * Setup compact flash boot command
	 */
	setenv("bootcmd_cf", "fatload ide 0 8000000 uimage.karef;bootm 8000000");

	saveenv();

	return(1);
}

int karefRecover(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	unsigned short sernum;
	char envstr[255];

	sernum = sbcommon_get_serial_number();

	printf("\nSetting up environment for filesystem recovery\n");
	/*
	 * Setup default bootargs
	 */
	memset(envstr, 0, 255);

	sprintf(envstr, "console=ttyS0,9600 root=/dev/ram0 "
		"rw ip=10.100.70.%d:::255.255.0.0:karef%d:eth0:none",
		sernum, sernum);
	setenv("bootargs", envstr);

	/*
	 * Setup Default boot command
	 */

	setenv("bootcmd", "fatload ide 0 8000000 uimage.karef;"
	       "fatload ide 0 8100000 pramdisk;"
	       "bootm 8000000 8100000");

	printf("Done.  Please type boot<cr>.\nWhen the kernel has booted"
	       " please type fsrecover.sh<cr>\n");

	return(1);
}

U_BOOT_CMD(kasetup, 1, 1, karefSetupVars,
	   "kasetup - Set environment to factory defaults\n", NULL);

U_BOOT_CMD(karecover, 1, 1, karefRecover,
	   "karecover - Set environment to allow for fs recovery\n", NULL);