40 module_param(heartbeat, int, 0);
45 module_param(nowayout, bool, 0);
71 	/* -- FPGA: Reset Control Register (32bit R/W) (Offset: 0x14) --  in pikawdt_reset()
80 	unsigned reset = in_be32(pikawdt_private.fpga + 0x14);  in pikawdt_reset()
83 	out_be32(pikawdt_private.fpga + 0x14, reset);  in pikawdt_reset()
117 	if (test_and_set_bit(0, &pikawdt_private.open))  in pikawdt_open()
134 	clear_bit(0, &pikawdt_private.open);  in pikawdt_release()
135 	pikawdt_private.expect_close = 0;  in pikawdt_release()
136 	return 0;  in pikawdt_release()
146 		return 0;  in pikawdt_write()
152 		pikawdt_private.expect_close = 0;  in pikawdt_write()
154 		for (i = 0; i < len; i++) {  in pikawdt_write()
182 		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;  in pikawdt_ioctl()
185 		return put_user(0, p);  in pikawdt_ioctl()
192 		return 0;  in pikawdt_ioctl()
238 	pikawdt_private.fpga = of_iomap(np, 0);  in pikawdt_init()
245 	ident.firmware_version = in_be32(pikawdt_private.fpga + 0x1c) & 0xffff;  in pikawdt_init()
255 	fpga = of_iomap(np, 0);  in pikawdt_init()
263 	/* -- FPGA: POST Test Results Register 1 (32bit R/W) (Offset: 0x4040) --  in pikawdt_init()
267 	post1 = in_be32(fpga + 0x40);  in pikawdt_init()
268 	if (post1 & 0x80000000)  in pikawdt_init()
273 	timer_setup(&pikawdt_private.timer, pikawdt_ping, 0);  in pikawdt_init()
283 	return 0;  in pikawdt_init()