1 // SPDX-License-Identifier: GPL-2.0
40 #include <asm/pci-bridge.h>
62 /* Used for doing CHRP event-scans */
82 	"Asynchronous", "Reserved", "Flow-Through Synchronous",
86 	"Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
108 	seq_printf(m, "machine\t\t: CHRP %s\n", model);  in chrp_show_cpuinfo()
176 static void __init sio_fixup_irq(const char *name, u8 device, u8 level,  in sio_fixup_irq()  argument
186 	if (level0 != level || type0 != type || !active) {  in sio_fixup_irq()
187 		printk(KERN_WARNING "sio: %s irq level %d, type %d, %sactive: "  in sio_fixup_irq()
188 		       "remapping to level %d, type %d, active\n",  in sio_fixup_irq()
189 		       name, level0, type0, !active ? "in" : "", level, type);  in sio_fixup_irq()
191 		sio_write(level, 0x70);  in sio_fixup_irq()
253  * Per default, input/output-device points to the keyboard/screen
254  * If no card is installed, the built-in serial port is used as a fallback.
256  * to the built-in serial node. Instead, a /failsafe node is created.
277 	property = of_get_property(of_chosen, "linux,stdout-path", NULL);  in chrp_init()
300 	const char *machine = NULL;  in chrp_setup_arch()  local
306 		machine = of_get_property(root, "model", NULL);  in chrp_setup_arch()
307 	if (machine && strncmp(machine, "Pegasos", 7) == 0) {  in chrp_setup_arch()
309 	} else if (machine && strncmp(machine, "IBM", 3) == 0) {  in chrp_setup_arch()
311 	} else if (machine && strncmp(machine, "MOT", 3) == 0) {  in chrp_setup_arch()
313 	} else if (machine && strncmp(machine, "TotalImpact,BRIQ-1", 18) == 0) {  in chrp_setup_arch()
329 	/* use RTAS time-of-day routines if available */  in chrp_setup_arch()
346 	 * can be printed.  -- Cort  in chrp_setup_arch()
359 	chip->irq_eoi(&desc->irq_data);  in chrp_8259_cascade()
363  * Finds the open-pic node and sets up the mpic driver.
375 	np = of_find_node_by_type(NULL, "open-pic");  in chrp_find_openpic()
380 		opprop = of_get_property(root, "platform-open-pic", &oplen);  in chrp_find_openpic()
384 		opaddr = opprop[na-1];	/* assume 32-bit */  in chrp_find_openpic()
397 	iranges = of_get_property(np, "interrupt-ranges", &len);  in chrp_find_openpic()
399 		len = 0;	/* non-distributed mpic */  in chrp_find_openpic()
404 	 * The first pair of cells in interrupt-ranges refers to the  in chrp_find_openpic()
416 		       iranges[0], iranges[0] + iranges[1] - 1);  in chrp_find_openpic()
427 	j = na - 1;  in chrp_find_openpic()
432 		       iranges[0], iranges[0] + iranges[1] - 1,  in chrp_find_openpic()
434 		mpic_assign_isu(chrp_mpic, i - 1, opprop[j]);  in chrp_find_openpic()
451 	for_each_node_by_type(np, "interrupt-controller")  in chrp_find_8259()
461 		printk(KERN_ERR "i8259: Not found in device-tree"  in chrp_find_8259()
468 	 * we ever see a problem, we can try to re-use the pSeries code here.  in chrp_find_8259()
469 	 * Also, Pegasos-type platforms don't have a proper node to start  in chrp_find_8259()
474 				"8259-interrupt-acknowledge", NULL);  in chrp_find_8259()
478 		chrp_int_ack = addrp[of_n_addr_cells(np)-1];  in chrp_find_8259()
524 		if (of_node_is_type(kbd->parent, "adb"))  in chrp_init_IRQ()