1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * linux/arch/arm/mach-omap1/mux.c
7  * Copyright (C) 2003 - 2008 Nokia Corporation
15 #include <linux/soc/ti/omap1-io.h>
33 /* UART2 (COM_UART_GATING), conflicts with USB2 */
74 /* USB2 master */
83 /* OMAP-1510 GPIO */
92 /* OMAP-1710 GPIO */
129 /* OMAP-1610 MMC2 */
141 /* OMAP-1610 External Trace Interface */
164 /* OMAP-1610 uWire */
172 /* OMAP-1610 SPI */
183 /* OMAP-1610 Flash */
198 /* OMAP-1610 USB0 alternate configuration */
208 /* USB2 interface */
295 	if (cfg->mux_reg) {  in omap1_cfg_reg()
299 		reg_orig = omap_readl(cfg->mux_reg);  in omap1_cfg_reg()
302 		mask = (0x7 << cfg->mask_offset);  in omap1_cfg_reg()
306 		tmp2 = (cfg->mask << cfg->mask_offset);  in omap1_cfg_reg()
312 		omap_writel(reg, cfg->mux_reg);  in omap1_cfg_reg()
318 		if (cfg->pu_pd_reg && cfg->pull_val) {  in omap1_cfg_reg()
320 			pu_pd_orig = omap_readl(cfg->pu_pd_reg);  in omap1_cfg_reg()
321 			mask = 1 << cfg->pull_bit;  in omap1_cfg_reg()
323 			if (cfg->pu_pd_val) {  in omap1_cfg_reg()
334 			omap_writel(pu_pd, cfg->pu_pd_reg);  in omap1_cfg_reg()
340 	if (cfg->pull_reg) {  in omap1_cfg_reg()
342 		pull_orig = omap_readl(cfg->pull_reg);  in omap1_cfg_reg()
343 		mask = 1 << cfg->pull_bit;  in omap1_cfg_reg()
345 		if (cfg->pull_val) {  in omap1_cfg_reg()
357 		omap_writel(pull, cfg->pull_reg);  in omap1_cfg_reg()
363 		printk(KERN_WARNING "MUX: initialized %s\n", cfg->name);  in omap1_cfg_reg()
368 	if (cfg->debug || warn) {  in omap1_cfg_reg()
369 		printk("MUX: Setting register %s\n", cfg->name);  in omap1_cfg_reg()
370 		printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",  in omap1_cfg_reg()
371 		       cfg->mux_reg_name, cfg->mux_reg, reg_orig, reg);  in omap1_cfg_reg()
374 			if (cfg->pu_pd_reg && cfg->pull_val) {  in omap1_cfg_reg()
375 				printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",  in omap1_cfg_reg()
376 				       cfg->pu_pd_name, cfg->pu_pd_reg,  in omap1_cfg_reg()
381 		if (cfg->pull_reg)  in omap1_cfg_reg()
382 			printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",  in omap1_cfg_reg()
383 			       cfg->pull_name, cfg->pull_reg, pull_orig, pull);  in omap1_cfg_reg()
388 	return warn ? -ETXTBSY : 0;  in omap1_cfg_reg()
398 	if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0  in omap_mux_register()
399 			|| !arch_mux_cfg->cfg_reg) {  in omap_mux_register()
401 		return -EINVAL;  in omap_mux_register()
410  * Sets the Omap MUX and PULL_DWN registers based on the table
420 		return -EINVAL;  in omap_cfg_reg()
425 		return -ENODEV;  in omap_cfg_reg()
428 	if (index >= mux_cfg->size) {  in omap_cfg_reg()
430 		       index, mux_cfg->size);  in omap_cfg_reg()
432 		return -ENODEV;  in omap_cfg_reg()
435 	reg = &mux_cfg->pins[index];  in omap_cfg_reg()
437 	if (!mux_cfg->cfg_reg)  in omap_cfg_reg()
438 		return -ENODEV;  in omap_cfg_reg()
440 	return mux_cfg->cfg_reg(reg);  in omap_cfg_reg()