C++ (Cpp) bfin_read_SYSCR Examples

Example #1

File: smp.c Project: Backspace-Dev/Blackout-Monarudo

int platform_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
	unsigned long timeout;

	printk(KERN_INFO "Booting Core B.\n");

	spin_lock(&boot_lock);

	if ((bfin_read_SYSCR() & COREB_SRAM_INIT) == 0) {
		/* CoreB already running, sending ipi to wakeup it */
		smp_send_reschedule(cpu);
	} else {
		/* Kick CoreB, which should start execution from CORE_SRAM_BASE. */
		bfin_write_SYSCR(bfin_read_SYSCR() & ~COREB_SRAM_INIT);
		SSYNC();
	}

	timeout = jiffies + 1 * HZ;
	while (time_before(jiffies, timeout)) {
		if (cpu_online(cpu))
			break;
		udelay(100);
		barrier();
	}

	if (cpu_online(cpu)) {
		/* release the lock and let coreb run */
		spin_unlock(&boot_lock);
		return 0;
	} else
		panic("CPU%u: processor failed to boot\n", cpu);
}

Example #2

File: coreb.c Project: 01org/thunderbolt-software-kernel-tree

static long
coreb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	int ret = 0;

	switch (cmd) {
	case CMD_COREB_START:
		bfin_write_SYSCR(bfin_read_SYSCR() & ~0x0020);
		break;
	case CMD_COREB_STOP:
		bfin_write_SYSCR(bfin_read_SYSCR() | 0x0020);
		bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080);
		break;
	case CMD_COREB_RESET:
		bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080);
		break;
	default:
		ret = -EINVAL;
		break;
	}

	CSYNC();

	return ret;
}

Example #3

File: cpu.c Project: soderstrom-rikard/adi-u-boot

void bfin_core1_start(void)
{
#ifdef BF561_FAMILY
	/* Enable core 1 */
	bfin_write_SYSCR(bfin_read_SYSCR() & ~0x0020);
#else
	/* Enable core 1 */
	bfin_write32(RCU0_SVECT1, COREB_L1_CODE_START);
	bfin_write32(RCU0_CRCTL, 0);

	bfin_write32(RCU0_CRCTL, 0x2);

	/* Check if core 1 starts */
	while (!(bfin_read32(RCU0_CRSTAT) & 0x2))
		continue;

	bfin_write32(RCU0_CRCTL, 0);

	/* flag to notify cces core 1 application */
	bfin_write32(SDU0_MSG_SET, (1 << 19));
#endif
}

Example #4

File: tcm-bf518.c Project: Medvedroid/OT_903D-kernel-2.6.35.7

void native_machine_restart(char *cmd)
{
	/* workaround reboot hang when booting from SPI */
	if ((bfin_read_SYSCR() & 0x7) == 0x3)
		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
}

Example #5

File: ezbrd.c Project: embest-tech/rowboat-kernel

void native_machine_restart(char *cmd)
{
	/* workaround reboot hang when booting from SPI */
	if ((bfin_read_SYSCR() & 0x7) == 0x3)
		bfin_gpio_reset_spi0_ssel1();
}

Example #6

File: ezbrd.c Project: 1703011/asuswrt-merlin

void native_machine_restart(char *cmd)
{
	if ((bfin_read_SYSCR() & 0x7) == 0x3)
		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
}

Example #7

File: leanXcam.c Project: ysei/linux-2.6.x

void native_machine_restart(char *cmd)
{
	if ((bfin_read_SYSCR() & 0x7) == 0x3)
		bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS); //bfin_gpio_reset_spi0_ssel1();/* workaround reboot hang when booting from SPI  (not used anymore) */
}