Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-omap2/mux.c |
| 3 | * |
Vikram Pandita | 2351872 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 4 | * OMAP2 and OMAP3 pin multiplexing configurations |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 5 | * |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 6 | * Copyright (C) 2004 - 2008 Texas Instruments Inc. |
| 7 | * Copyright (C) 2003 - 2008 Nokia Corporation |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 8 | * |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 9 | * Written by Tony Lindgren |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 24 | * |
| 25 | */ |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 26 | #include <linux/module.h> |
| 27 | #include <linux/init.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 28 | #include <linux/io.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 29 | #include <linux/spinlock.h> |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 30 | #include <linux/list.h> |
Tony Lindgren | 4b715ef | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 31 | #include <linux/ctype.h> |
| 32 | #include <linux/debugfs.h> |
| 33 | #include <linux/seq_file.h> |
| 34 | #include <linux/uaccess.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 35 | |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 36 | #include <asm/system.h> |
| 37 | |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 38 | #include <plat/control.h> |
| 39 | #include <plat/mux.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 40 | |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 41 | #include "mux.h" |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 42 | |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 43 | #define OMAP_MUX_BASE_OFFSET 0x30 /* Offset from CTRL_BASE */ |
| 44 | #define OMAP_MUX_BASE_SZ 0x5ca |
| 45 | |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 46 | struct omap_mux_entry { |
| 47 | struct omap_mux mux; |
| 48 | struct list_head node; |
| 49 | }; |
| 50 | |
Tony Lindgren | 4b715ef | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 51 | static unsigned long mux_phys; |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 52 | static void __iomem *mux_base; |
| 53 | |
| 54 | static inline u16 omap_mux_read(u16 reg) |
| 55 | { |
| 56 | if (cpu_is_omap24xx()) |
| 57 | return __raw_readb(mux_base + reg); |
| 58 | else |
| 59 | return __raw_readw(mux_base + reg); |
| 60 | } |
| 61 | |
| 62 | static inline void omap_mux_write(u16 val, u16 reg) |
| 63 | { |
| 64 | if (cpu_is_omap24xx()) |
| 65 | __raw_writeb(val, mux_base + reg); |
| 66 | else |
| 67 | __raw_writew(val, mux_base + reg); |
| 68 | } |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 69 | |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 70 | #if defined(CONFIG_ARCH_OMAP24XX) && defined(CONFIG_OMAP_MUX) |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 71 | |
| 72 | static struct omap_mux_cfg arch_mux_cfg; |
| 73 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 74 | /* NOTE: See mux.h for the enumeration */ |
| 75 | |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 76 | static struct pin_config __initdata_or_module omap24xx_pins[] = { |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 77 | /* |
| 78 | * description mux mux pull pull debug |
| 79 | * offset mode ena type |
| 80 | */ |
| 81 | |
| 82 | /* 24xx I2C */ |
| 83 | MUX_CFG_24XX("M19_24XX_I2C1_SCL", 0x111, 0, 0, 0, 1) |
| 84 | MUX_CFG_24XX("L15_24XX_I2C1_SDA", 0x112, 0, 0, 0, 1) |
Kyungmin Park | 7bbb3cc | 2006-12-06 17:13:54 -0800 | [diff] [blame] | 85 | MUX_CFG_24XX("J15_24XX_I2C2_SCL", 0x113, 0, 0, 1, 1) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 86 | MUX_CFG_24XX("H19_24XX_I2C2_SDA", 0x114, 0, 0, 0, 1) |
| 87 | |
| 88 | /* Menelaus interrupt */ |
| 89 | MUX_CFG_24XX("W19_24XX_SYS_NIRQ", 0x12c, 0, 1, 1, 1) |
| 90 | |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 91 | /* 24xx clocks */ |
| 92 | MUX_CFG_24XX("W14_24XX_SYS_CLKOUT", 0x137, 0, 1, 1, 1) |
| 93 | |
Kyungmin Park | 7bbb3cc | 2006-12-06 17:13:54 -0800 | [diff] [blame] | 94 | /* 24xx GPMC chipselects, wait pin monitoring */ |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 95 | MUX_CFG_24XX("E2_GPMC_NCS2", 0x08e, 0, 1, 1, 1) |
| 96 | MUX_CFG_24XX("L2_GPMC_NCS7", 0x093, 0, 1, 1, 1) |
Tony Lindgren | 3cbc960 | 2006-06-26 16:16:25 -0700 | [diff] [blame] | 97 | MUX_CFG_24XX("L3_GPMC_WAIT0", 0x09a, 0, 1, 1, 1) |
| 98 | MUX_CFG_24XX("N7_GPMC_WAIT1", 0x09b, 0, 1, 1, 1) |
| 99 | MUX_CFG_24XX("M1_GPMC_WAIT2", 0x09c, 0, 1, 1, 1) |
| 100 | MUX_CFG_24XX("P1_GPMC_WAIT3", 0x09d, 0, 1, 1, 1) |
| 101 | |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 102 | /* 24xx McBSP */ |
| 103 | MUX_CFG_24XX("Y15_24XX_MCBSP2_CLKX", 0x124, 1, 1, 0, 1) |
| 104 | MUX_CFG_24XX("R14_24XX_MCBSP2_FSX", 0x125, 1, 1, 0, 1) |
| 105 | MUX_CFG_24XX("W15_24XX_MCBSP2_DR", 0x126, 1, 1, 0, 1) |
| 106 | MUX_CFG_24XX("V15_24XX_MCBSP2_DX", 0x127, 1, 1, 0, 1) |
| 107 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 108 | /* 24xx GPIO */ |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 109 | MUX_CFG_24XX("M21_242X_GPIO11", 0x0c9, 3, 1, 1, 1) |
| 110 | MUX_CFG_24XX("P21_242X_GPIO12", 0x0ca, 3, 0, 0, 1) |
| 111 | MUX_CFG_24XX("AA10_242X_GPIO13", 0x0e5, 3, 0, 0, 1) |
| 112 | MUX_CFG_24XX("AA6_242X_GPIO14", 0x0e6, 3, 0, 0, 1) |
| 113 | MUX_CFG_24XX("AA4_242X_GPIO15", 0x0e7, 3, 0, 0, 1) |
| 114 | MUX_CFG_24XX("Y11_242X_GPIO16", 0x0e8, 3, 0, 0, 1) |
| 115 | MUX_CFG_24XX("AA12_242X_GPIO17", 0x0e9, 3, 0, 0, 1) |
| 116 | MUX_CFG_24XX("AA8_242X_GPIO58", 0x0ea, 3, 0, 0, 1) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 117 | MUX_CFG_24XX("Y20_24XX_GPIO60", 0x12c, 3, 0, 0, 1) |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 118 | MUX_CFG_24XX("W4__24XX_GPIO74", 0x0f2, 3, 0, 0, 1) |
Tony Lindgren | f7337a1 | 2008-03-20 16:56:26 +0200 | [diff] [blame] | 119 | MUX_CFG_24XX("N15_24XX_GPIO85", 0x103, 3, 0, 0, 1) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 120 | MUX_CFG_24XX("M15_24XX_GPIO92", 0x10a, 3, 0, 0, 1) |
Tony Lindgren | f7337a1 | 2008-03-20 16:56:26 +0200 | [diff] [blame] | 121 | MUX_CFG_24XX("P20_24XX_GPIO93", 0x10b, 3, 0, 0, 1) |
| 122 | MUX_CFG_24XX("P18_24XX_GPIO95", 0x10d, 3, 0, 0, 1) |
| 123 | MUX_CFG_24XX("M18_24XX_GPIO96", 0x10e, 3, 0, 0, 1) |
| 124 | MUX_CFG_24XX("L14_24XX_GPIO97", 0x10f, 3, 0, 0, 1) |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 125 | MUX_CFG_24XX("J15_24XX_GPIO99", 0x113, 3, 1, 1, 1) |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 126 | MUX_CFG_24XX("V14_24XX_GPIO117", 0x128, 3, 1, 0, 1) |
Kyungmin Park | 7bbb3cc | 2006-12-06 17:13:54 -0800 | [diff] [blame] | 127 | MUX_CFG_24XX("P14_24XX_GPIO125", 0x140, 3, 1, 1, 1) |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 128 | |
Tony Lindgren | 5ac4215 | 2006-06-26 16:16:20 -0700 | [diff] [blame] | 129 | /* 242x DBG GPIO */ |
| 130 | MUX_CFG_24XX("V4_242X_GPIO49", 0xd3, 3, 0, 0, 1) |
| 131 | MUX_CFG_24XX("W2_242X_GPIO50", 0xd4, 3, 0, 0, 1) |
| 132 | MUX_CFG_24XX("U4_242X_GPIO51", 0xd5, 3, 0, 0, 1) |
| 133 | MUX_CFG_24XX("V3_242X_GPIO52", 0xd6, 3, 0, 0, 1) |
| 134 | MUX_CFG_24XX("V2_242X_GPIO53", 0xd7, 3, 0, 0, 1) |
| 135 | MUX_CFG_24XX("V6_242X_GPIO53", 0xcf, 3, 0, 0, 1) |
| 136 | MUX_CFG_24XX("T4_242X_GPIO54", 0xd8, 3, 0, 0, 1) |
| 137 | MUX_CFG_24XX("Y4_242X_GPIO54", 0xd0, 3, 0, 0, 1) |
| 138 | MUX_CFG_24XX("T3_242X_GPIO55", 0xd9, 3, 0, 0, 1) |
| 139 | MUX_CFG_24XX("U2_242X_GPIO56", 0xda, 3, 0, 0, 1) |
| 140 | |
| 141 | /* 24xx external DMA requests */ |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 142 | MUX_CFG_24XX("AA10_242X_DMAREQ0", 0x0e5, 2, 0, 0, 1) |
| 143 | MUX_CFG_24XX("AA6_242X_DMAREQ1", 0x0e6, 2, 0, 0, 1) |
| 144 | MUX_CFG_24XX("E4_242X_DMAREQ2", 0x074, 2, 0, 0, 1) |
| 145 | MUX_CFG_24XX("G4_242X_DMAREQ3", 0x073, 2, 0, 0, 1) |
| 146 | MUX_CFG_24XX("D3_242X_DMAREQ4", 0x072, 2, 0, 0, 1) |
| 147 | MUX_CFG_24XX("E3_242X_DMAREQ5", 0x071, 2, 0, 0, 1) |
Tony Lindgren | 5ac4215 | 2006-06-26 16:16:20 -0700 | [diff] [blame] | 148 | |
Tony Lindgren | 7d34f3b | 2006-12-07 14:01:29 -0800 | [diff] [blame] | 149 | /* UART3 */ |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 150 | MUX_CFG_24XX("K15_24XX_UART3_TX", 0x118, 0, 0, 0, 1) |
| 151 | MUX_CFG_24XX("K14_24XX_UART3_RX", 0x119, 0, 0, 0, 1) |
| 152 | |
Kyungmin Park | abc45e1 | 2006-09-25 12:41:25 +0300 | [diff] [blame] | 153 | /* MMC/SDIO */ |
| 154 | MUX_CFG_24XX("G19_24XX_MMC_CLKO", 0x0f3, 0, 0, 0, 1) |
| 155 | MUX_CFG_24XX("H18_24XX_MMC_CMD", 0x0f4, 0, 0, 0, 1) |
| 156 | MUX_CFG_24XX("F20_24XX_MMC_DAT0", 0x0f5, 0, 0, 0, 1) |
| 157 | MUX_CFG_24XX("H14_24XX_MMC_DAT1", 0x0f6, 0, 0, 0, 1) |
| 158 | MUX_CFG_24XX("E19_24XX_MMC_DAT2", 0x0f7, 0, 0, 0, 1) |
| 159 | MUX_CFG_24XX("D19_24XX_MMC_DAT3", 0x0f8, 0, 0, 0, 1) |
| 160 | MUX_CFG_24XX("F19_24XX_MMC_DAT_DIR0", 0x0f9, 0, 0, 0, 1) |
| 161 | MUX_CFG_24XX("E20_24XX_MMC_DAT_DIR1", 0x0fa, 0, 0, 0, 1) |
| 162 | MUX_CFG_24XX("F18_24XX_MMC_DAT_DIR2", 0x0fb, 0, 0, 0, 1) |
| 163 | MUX_CFG_24XX("E18_24XX_MMC_DAT_DIR3", 0x0fc, 0, 0, 0, 1) |
| 164 | MUX_CFG_24XX("G18_24XX_MMC_CMD_DIR", 0x0fd, 0, 0, 0, 1) |
| 165 | MUX_CFG_24XX("H15_24XX_MMC_CLKI", 0x0fe, 0, 0, 0, 1) |
| 166 | |
Kyungmin Park | 7bbb3cc | 2006-12-06 17:13:54 -0800 | [diff] [blame] | 167 | /* Full speed USB */ |
| 168 | MUX_CFG_24XX("J20_24XX_USB0_PUEN", 0x11d, 0, 0, 0, 1) |
| 169 | MUX_CFG_24XX("J19_24XX_USB0_VP", 0x11e, 0, 0, 0, 1) |
| 170 | MUX_CFG_24XX("K20_24XX_USB0_VM", 0x11f, 0, 0, 0, 1) |
| 171 | MUX_CFG_24XX("J18_24XX_USB0_RCV", 0x120, 0, 0, 0, 1) |
| 172 | MUX_CFG_24XX("K19_24XX_USB0_TXEN", 0x121, 0, 0, 0, 1) |
| 173 | MUX_CFG_24XX("J14_24XX_USB0_SE0", 0x122, 0, 0, 0, 1) |
| 174 | MUX_CFG_24XX("K18_24XX_USB0_DAT", 0x123, 0, 0, 0, 1) |
| 175 | |
| 176 | MUX_CFG_24XX("N14_24XX_USB1_SE0", 0x0ed, 2, 0, 0, 1) |
| 177 | MUX_CFG_24XX("W12_24XX_USB1_SE0", 0x0dd, 3, 0, 0, 1) |
| 178 | MUX_CFG_24XX("P15_24XX_USB1_DAT", 0x0ee, 2, 0, 0, 1) |
| 179 | MUX_CFG_24XX("R13_24XX_USB1_DAT", 0x0e0, 3, 0, 0, 1) |
| 180 | MUX_CFG_24XX("W20_24XX_USB1_TXEN", 0x0ec, 2, 0, 0, 1) |
| 181 | MUX_CFG_24XX("P13_24XX_USB1_TXEN", 0x0df, 3, 0, 0, 1) |
| 182 | MUX_CFG_24XX("V19_24XX_USB1_RCV", 0x0eb, 2, 0, 0, 1) |
| 183 | MUX_CFG_24XX("V12_24XX_USB1_RCV", 0x0de, 3, 0, 0, 1) |
| 184 | |
| 185 | MUX_CFG_24XX("AA10_24XX_USB2_SE0", 0x0e5, 2, 0, 0, 1) |
| 186 | MUX_CFG_24XX("Y11_24XX_USB2_DAT", 0x0e8, 2, 0, 0, 1) |
| 187 | MUX_CFG_24XX("AA12_24XX_USB2_TXEN", 0x0e9, 2, 0, 0, 1) |
| 188 | MUX_CFG_24XX("AA6_24XX_USB2_RCV", 0x0e6, 2, 0, 0, 1) |
| 189 | MUX_CFG_24XX("AA4_24XX_USB2_TLLSE0", 0x0e7, 2, 0, 0, 1) |
| 190 | |
Tony Lindgren | 8d7f9f5 | 2006-04-02 17:46:22 +0100 | [diff] [blame] | 191 | /* Keypad GPIO*/ |
| 192 | MUX_CFG_24XX("T19_24XX_KBR0", 0x106, 3, 1, 1, 1) |
| 193 | MUX_CFG_24XX("R19_24XX_KBR1", 0x107, 3, 1, 1, 1) |
| 194 | MUX_CFG_24XX("V18_24XX_KBR2", 0x139, 3, 1, 1, 1) |
| 195 | MUX_CFG_24XX("M21_24XX_KBR3", 0xc9, 3, 1, 1, 1) |
| 196 | MUX_CFG_24XX("E5__24XX_KBR4", 0x138, 3, 1, 1, 1) |
| 197 | MUX_CFG_24XX("M18_24XX_KBR5", 0x10e, 3, 1, 1, 1) |
| 198 | MUX_CFG_24XX("R20_24XX_KBC0", 0x108, 3, 0, 0, 1) |
| 199 | MUX_CFG_24XX("M14_24XX_KBC1", 0x109, 3, 0, 0, 1) |
| 200 | MUX_CFG_24XX("H19_24XX_KBC2", 0x114, 3, 0, 0, 1) |
| 201 | MUX_CFG_24XX("V17_24XX_KBC3", 0x135, 3, 0, 0, 1) |
| 202 | MUX_CFG_24XX("P21_24XX_KBC4", 0xca, 3, 0, 0, 1) |
| 203 | MUX_CFG_24XX("L14_24XX_KBC5", 0x10f, 3, 0, 0, 1) |
| 204 | MUX_CFG_24XX("N19_24XX_KBC6", 0x110, 3, 0, 0, 1) |
| 205 | |
| 206 | /* 24xx Menelaus Keypad GPIO */ |
| 207 | MUX_CFG_24XX("B3__24XX_KBR5", 0x30, 3, 1, 1, 1) |
| 208 | MUX_CFG_24XX("AA4_24XX_KBC2", 0xe7, 3, 0, 0, 1) |
| 209 | MUX_CFG_24XX("B13_24XX_KBC6", 0x110, 3, 0, 0, 1) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 210 | |
Tony Lindgren | f7337a1 | 2008-03-20 16:56:26 +0200 | [diff] [blame] | 211 | /* 2430 USB */ |
| 212 | MUX_CFG_24XX("AD9_2430_USB0_PUEN", 0x133, 4, 0, 0, 1) |
| 213 | MUX_CFG_24XX("Y11_2430_USB0_VP", 0x134, 4, 0, 0, 1) |
| 214 | MUX_CFG_24XX("AD7_2430_USB0_VM", 0x135, 4, 0, 0, 1) |
| 215 | MUX_CFG_24XX("AE7_2430_USB0_RCV", 0x136, 4, 0, 0, 1) |
| 216 | MUX_CFG_24XX("AD4_2430_USB0_TXEN", 0x137, 4, 0, 0, 1) |
| 217 | MUX_CFG_24XX("AF9_2430_USB0_SE0", 0x138, 4, 0, 0, 1) |
| 218 | MUX_CFG_24XX("AE6_2430_USB0_DAT", 0x139, 4, 0, 0, 1) |
| 219 | MUX_CFG_24XX("AD24_2430_USB1_SE0", 0x107, 2, 0, 0, 1) |
| 220 | MUX_CFG_24XX("AB24_2430_USB1_RCV", 0x108, 2, 0, 0, 1) |
| 221 | MUX_CFG_24XX("Y25_2430_USB1_TXEN", 0x109, 2, 0, 0, 1) |
| 222 | MUX_CFG_24XX("AA26_2430_USB1_DAT", 0x10A, 2, 0, 0, 1) |
| 223 | |
| 224 | /* 2430 HS-USB */ |
| 225 | MUX_CFG_24XX("AD9_2430_USB0HS_DATA3", 0x133, 0, 0, 0, 1) |
| 226 | MUX_CFG_24XX("Y11_2430_USB0HS_DATA4", 0x134, 0, 0, 0, 1) |
| 227 | MUX_CFG_24XX("AD7_2430_USB0HS_DATA5", 0x135, 0, 0, 0, 1) |
| 228 | MUX_CFG_24XX("AE7_2430_USB0HS_DATA6", 0x136, 0, 0, 0, 1) |
| 229 | MUX_CFG_24XX("AD4_2430_USB0HS_DATA2", 0x137, 0, 0, 0, 1) |
| 230 | MUX_CFG_24XX("AF9_2430_USB0HS_DATA0", 0x138, 0, 0, 0, 1) |
| 231 | MUX_CFG_24XX("AE6_2430_USB0HS_DATA1", 0x139, 0, 0, 0, 1) |
| 232 | MUX_CFG_24XX("AE8_2430_USB0HS_CLK", 0x13A, 0, 0, 0, 1) |
| 233 | MUX_CFG_24XX("AD8_2430_USB0HS_DIR", 0x13B, 0, 0, 0, 1) |
| 234 | MUX_CFG_24XX("AE5_2430_USB0HS_STP", 0x13c, 0, 1, 1, 1) |
| 235 | MUX_CFG_24XX("AE9_2430_USB0HS_NXT", 0x13D, 0, 0, 0, 1) |
| 236 | MUX_CFG_24XX("AC7_2430_USB0HS_DATA7", 0x13E, 0, 0, 0, 1) |
| 237 | |
| 238 | /* 2430 McBSP */ |
Arun KS | 2619bc3 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 239 | MUX_CFG_24XX("AD6_2430_MCBSP_CLKS", 0x011E, 0, 0, 0, 1) |
| 240 | |
| 241 | MUX_CFG_24XX("AB2_2430_MCBSP1_CLKR", 0x011A, 0, 0, 0, 1) |
| 242 | MUX_CFG_24XX("AD5_2430_MCBSP1_FSR", 0x011B, 0, 0, 0, 1) |
| 243 | MUX_CFG_24XX("AA1_2430_MCBSP1_DX", 0x011C, 0, 0, 0, 1) |
| 244 | MUX_CFG_24XX("AF3_2430_MCBSP1_DR", 0x011D, 0, 0, 0, 1) |
| 245 | MUX_CFG_24XX("AB3_2430_MCBSP1_FSX", 0x011F, 0, 0, 0, 1) |
| 246 | MUX_CFG_24XX("Y9_2430_MCBSP1_CLKX", 0x0120, 0, 0, 0, 1) |
| 247 | |
Tony Lindgren | f7337a1 | 2008-03-20 16:56:26 +0200 | [diff] [blame] | 248 | MUX_CFG_24XX("AC10_2430_MCBSP2_FSX", 0x012E, 1, 0, 0, 1) |
| 249 | MUX_CFG_24XX("AD16_2430_MCBSP2_CLX", 0x012F, 1, 0, 0, 1) |
| 250 | MUX_CFG_24XX("AE13_2430_MCBSP2_DX", 0x0130, 1, 0, 0, 1) |
| 251 | MUX_CFG_24XX("AD13_2430_MCBSP2_DR", 0x0131, 1, 0, 0, 1) |
| 252 | MUX_CFG_24XX("AC10_2430_MCBSP2_FSX_OFF",0x012E, 0, 0, 0, 1) |
| 253 | MUX_CFG_24XX("AD16_2430_MCBSP2_CLX_OFF",0x012F, 0, 0, 0, 1) |
| 254 | MUX_CFG_24XX("AE13_2430_MCBSP2_DX_OFF", 0x0130, 0, 0, 0, 1) |
| 255 | MUX_CFG_24XX("AD13_2430_MCBSP2_DR_OFF", 0x0131, 0, 0, 0, 1) |
Arun KS | 2619bc3 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 256 | |
| 257 | MUX_CFG_24XX("AC9_2430_MCBSP3_CLKX", 0x0103, 0, 0, 0, 1) |
| 258 | MUX_CFG_24XX("AE4_2430_MCBSP3_FSX", 0x0104, 0, 0, 0, 1) |
| 259 | MUX_CFG_24XX("AE2_2430_MCBSP3_DR", 0x0105, 0, 0, 0, 1) |
| 260 | MUX_CFG_24XX("AF4_2430_MCBSP3_DX", 0x0106, 0, 0, 0, 1) |
| 261 | |
| 262 | MUX_CFG_24XX("N3_2430_MCBSP4_CLKX", 0x010B, 1, 0, 0, 1) |
| 263 | MUX_CFG_24XX("AD23_2430_MCBSP4_DR", 0x010C, 1, 0, 0, 1) |
| 264 | MUX_CFG_24XX("AB25_2430_MCBSP4_DX", 0x010D, 1, 0, 0, 1) |
| 265 | MUX_CFG_24XX("AC25_2430_MCBSP4_FSX", 0x010E, 1, 0, 0, 1) |
| 266 | |
| 267 | MUX_CFG_24XX("AE16_2430_MCBSP5_CLKX", 0x00ED, 1, 0, 0, 1) |
| 268 | MUX_CFG_24XX("AF12_2430_MCBSP5_FSX", 0x00ED, 1, 0, 0, 1) |
| 269 | MUX_CFG_24XX("K7_2430_MCBSP5_DX", 0x00EF, 1, 0, 0, 1) |
| 270 | MUX_CFG_24XX("M1_2430_MCBSP5_DR", 0x00F0, 1, 0, 0, 1) |
| 271 | |
| 272 | /* 2430 MCSPI1 */ |
| 273 | MUX_CFG_24XX("Y18_2430_MCSPI1_CLK", 0x010F, 0, 0, 0, 1) |
| 274 | MUX_CFG_24XX("AD15_2430_MCSPI1_SIMO", 0x0110, 0, 0, 0, 1) |
| 275 | MUX_CFG_24XX("AE17_2430_MCSPI1_SOMI", 0x0111, 0, 0, 0, 1) |
| 276 | MUX_CFG_24XX("U1_2430_MCSPI1_CS0", 0x0112, 0, 0, 0, 1) |
| 277 | |
| 278 | /* Touchscreen GPIO */ |
| 279 | MUX_CFG_24XX("AF19_2430_GPIO_85", 0x0113, 3, 0, 0, 1) |
| 280 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 281 | }; |
| 282 | |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 283 | #define OMAP24XX_PINS_SZ ARRAY_SIZE(omap24xx_pins) |
| 284 | |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 285 | #if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS) |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 286 | |
Vikram Pandita | 2351872 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 287 | static void __init_or_module omap2_cfg_debug(const struct pin_config *cfg, u16 reg) |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 288 | { |
| 289 | u16 orig; |
| 290 | u8 warn = 0, debug = 0; |
| 291 | |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 292 | orig = omap_mux_read(cfg->mux_reg - OMAP_MUX_BASE_OFFSET); |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 293 | |
| 294 | #ifdef CONFIG_OMAP_MUX_DEBUG |
| 295 | debug = cfg->debug; |
| 296 | #endif |
| 297 | warn = (orig != reg); |
| 298 | if (debug || warn) |
| 299 | printk(KERN_WARNING |
Tony Lindgren | a58caad | 2008-07-03 12:24:44 +0300 | [diff] [blame] | 300 | "MUX: setup %s (0x%p): 0x%04x -> 0x%04x\n", |
Paul Walmsley | 4459598 | 2008-03-18 10:04:51 +0200 | [diff] [blame] | 301 | cfg->name, omap_ctrl_base_get() + cfg->mux_reg, |
| 302 | orig, reg); |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 303 | } |
| 304 | #else |
| 305 | #define omap2_cfg_debug(x, y) do {} while (0) |
| 306 | #endif |
| 307 | |
Arun KS | 2619bc3 | 2008-12-10 17:36:54 -0800 | [diff] [blame] | 308 | static int __init_or_module omap24xx_cfg_reg(const struct pin_config *cfg) |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 309 | { |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 310 | static DEFINE_SPINLOCK(mux_spin_lock); |
| 311 | unsigned long flags; |
Tony Lindgren | 225dfda | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 312 | u8 reg = 0; |
Tony Lindgren | 225dfda | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 313 | |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 314 | spin_lock_irqsave(&mux_spin_lock, flags); |
Tony Lindgren | 225dfda | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 315 | reg |= cfg->mask & 0x7; |
| 316 | if (cfg->pull_val) |
Vikram Pandita | 2351872 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 317 | reg |= OMAP2_PULL_ENA; |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 318 | if (cfg->pu_pd_val) |
Vikram Pandita | 2351872 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 319 | reg |= OMAP2_PULL_UP; |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 320 | omap2_cfg_debug(cfg, reg); |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 321 | omap_mux_write(reg, cfg->mux_reg - OMAP_MUX_BASE_OFFSET); |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 322 | spin_unlock_irqrestore(&mux_spin_lock, flags); |
Tony Lindgren | 225dfda | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 323 | |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 324 | return 0; |
| 325 | } |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 326 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 327 | int __init omap2_mux_init(void) |
| 328 | { |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 329 | u32 mux_pbase; |
| 330 | |
| 331 | if (cpu_is_omap2420()) |
| 332 | mux_pbase = OMAP2420_CTRL_BASE + OMAP_MUX_BASE_OFFSET; |
| 333 | else if (cpu_is_omap2430()) |
| 334 | mux_pbase = OMAP243X_CTRL_BASE + OMAP_MUX_BASE_OFFSET; |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 335 | else |
| 336 | return -ENODEV; |
Mike Rapoport | 92c9f50 | 2009-12-11 16:16:31 -0800 | [diff] [blame] | 337 | |
| 338 | mux_base = ioremap(mux_pbase, OMAP_MUX_BASE_SZ); |
| 339 | if (!mux_base) { |
| 340 | printk(KERN_ERR "mux: Could not ioremap\n"); |
| 341 | return -ENODEV; |
| 342 | } |
| 343 | |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 344 | if (cpu_is_omap24xx()) { |
| 345 | arch_mux_cfg.pins = omap24xx_pins; |
Tony Lindgren | 9330899 | 2008-01-24 17:24:15 -0800 | [diff] [blame] | 346 | arch_mux_cfg.size = OMAP24XX_PINS_SZ; |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 347 | arch_mux_cfg.cfg_reg = omap24xx_cfg_reg; |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 348 | |
| 349 | return omap_mux_register(&arch_mux_cfg); |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 350 | } |
Tony Lindgren | 7d7f665 | 2008-01-25 00:42:48 -0800 | [diff] [blame] | 351 | |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 352 | return 0; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 353 | } |
| 354 | |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 355 | #else |
| 356 | int __init omap2_mux_init(void) |
| 357 | { |
| 358 | return 0; |
| 359 | } |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 360 | #endif /* CONFIG_OMAP_MUX */ |
| 361 | |
| 362 | /*----------------------------------------------------------------------------*/ |
| 363 | |
| 364 | #ifdef CONFIG_ARCH_OMAP34XX |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 365 | static LIST_HEAD(muxmodes); |
| 366 | static DEFINE_MUTEX(muxmode_mutex); |
| 367 | |
| 368 | #ifdef CONFIG_OMAP_MUX |
| 369 | |
| 370 | static char *omap_mux_options; |
| 371 | |
| 372 | int __init omap_mux_init_gpio(int gpio, int val) |
| 373 | { |
| 374 | struct omap_mux_entry *e; |
| 375 | int found = 0; |
| 376 | |
| 377 | if (!gpio) |
| 378 | return -EINVAL; |
| 379 | |
| 380 | list_for_each_entry(e, &muxmodes, node) { |
| 381 | struct omap_mux *m = &e->mux; |
| 382 | if (gpio == m->gpio) { |
| 383 | u16 old_mode; |
| 384 | u16 mux_mode; |
| 385 | |
| 386 | old_mode = omap_mux_read(m->reg_offset); |
| 387 | mux_mode = val & ~(OMAP_MUX_NR_MODES - 1); |
| 388 | mux_mode |= OMAP_MUX_MODE4; |
| 389 | printk(KERN_DEBUG "mux: Setting signal " |
| 390 | "%s.gpio%i 0x%04x -> 0x%04x\n", |
| 391 | m->muxnames[0], gpio, old_mode, mux_mode); |
| 392 | omap_mux_write(mux_mode, m->reg_offset); |
| 393 | found++; |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | if (found == 1) |
| 398 | return 0; |
| 399 | |
| 400 | if (found > 1) { |
| 401 | printk(KERN_ERR "mux: Multiple gpio paths for gpio%i\n", gpio); |
| 402 | return -EINVAL; |
| 403 | } |
| 404 | |
| 405 | printk(KERN_ERR "mux: Could not set gpio%i\n", gpio); |
| 406 | |
| 407 | return -ENODEV; |
| 408 | } |
| 409 | |
| 410 | int __init omap_mux_init_signal(char *muxname, int val) |
| 411 | { |
| 412 | struct omap_mux_entry *e; |
| 413 | char *m0_name = NULL, *mode_name = NULL; |
| 414 | int found = 0; |
| 415 | |
| 416 | mode_name = strchr(muxname, '.'); |
| 417 | if (mode_name) { |
| 418 | *mode_name = '\0'; |
| 419 | mode_name++; |
| 420 | m0_name = muxname; |
| 421 | } else { |
| 422 | mode_name = muxname; |
| 423 | } |
| 424 | |
| 425 | list_for_each_entry(e, &muxmodes, node) { |
| 426 | struct omap_mux *m = &e->mux; |
| 427 | char *m0_entry = m->muxnames[0]; |
| 428 | int i; |
| 429 | |
| 430 | if (m0_name && strcmp(m0_name, m0_entry)) |
| 431 | continue; |
| 432 | |
| 433 | for (i = 0; i < OMAP_MUX_NR_MODES; i++) { |
| 434 | char *mode_cur = m->muxnames[i]; |
| 435 | |
| 436 | if (!mode_cur) |
| 437 | continue; |
| 438 | |
| 439 | if (!strcmp(mode_name, mode_cur)) { |
| 440 | u16 old_mode; |
| 441 | u16 mux_mode; |
| 442 | |
| 443 | old_mode = omap_mux_read(m->reg_offset); |
| 444 | mux_mode = val | i; |
| 445 | printk(KERN_DEBUG "mux: Setting signal " |
| 446 | "%s.%s 0x%04x -> 0x%04x\n", |
| 447 | m0_entry, muxname, old_mode, mux_mode); |
| 448 | omap_mux_write(mux_mode, m->reg_offset); |
| 449 | found++; |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | if (found == 1) |
| 455 | return 0; |
| 456 | |
| 457 | if (found > 1) { |
| 458 | printk(KERN_ERR "mux: Multiple signal paths (%i) for %s\n", |
| 459 | found, muxname); |
| 460 | return -EINVAL; |
| 461 | } |
| 462 | |
| 463 | printk(KERN_ERR "mux: Could not set signal %s\n", muxname); |
| 464 | |
| 465 | return -ENODEV; |
| 466 | } |
| 467 | |
Tony Lindgren | 4b715ef | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 468 | #ifdef CONFIG_DEBUG_FS |
| 469 | |
| 470 | #define OMAP_MUX_MAX_NR_FLAGS 10 |
| 471 | #define OMAP_MUX_TEST_FLAG(val, mask) \ |
| 472 | if (((val) & (mask)) == (mask)) { \ |
| 473 | i++; \ |
| 474 | flags[i] = #mask; \ |
| 475 | } |
| 476 | |
| 477 | /* REVISIT: Add checking for non-optimal mux settings */ |
| 478 | static inline void omap_mux_decode(struct seq_file *s, u16 val) |
| 479 | { |
| 480 | char *flags[OMAP_MUX_MAX_NR_FLAGS]; |
| 481 | char mode[14]; |
| 482 | int i = -1; |
| 483 | |
| 484 | sprintf(mode, "OMAP_MUX_MODE%d", val & 0x7); |
| 485 | i++; |
| 486 | flags[i] = mode; |
| 487 | |
| 488 | OMAP_MUX_TEST_FLAG(val, OMAP_PIN_OFF_WAKEUPENABLE); |
| 489 | if (val & OMAP_OFF_EN) { |
| 490 | if (!(val & OMAP_OFFOUT_EN)) { |
| 491 | if (!(val & OMAP_OFF_PULL_UP)) { |
| 492 | OMAP_MUX_TEST_FLAG(val, |
| 493 | OMAP_PIN_OFF_INPUT_PULLDOWN); |
| 494 | } else { |
| 495 | OMAP_MUX_TEST_FLAG(val, |
| 496 | OMAP_PIN_OFF_INPUT_PULLUP); |
| 497 | } |
| 498 | } else { |
| 499 | if (!(val & OMAP_OFFOUT_VAL)) { |
| 500 | OMAP_MUX_TEST_FLAG(val, |
| 501 | OMAP_PIN_OFF_OUTPUT_LOW); |
| 502 | } else { |
| 503 | OMAP_MUX_TEST_FLAG(val, |
| 504 | OMAP_PIN_OFF_OUTPUT_HIGH); |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | if (val & OMAP_INPUT_EN) { |
| 510 | if (val & OMAP_PULL_ENA) { |
| 511 | if (!(val & OMAP_PULL_UP)) { |
| 512 | OMAP_MUX_TEST_FLAG(val, |
| 513 | OMAP_PIN_INPUT_PULLDOWN); |
| 514 | } else { |
| 515 | OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT_PULLUP); |
| 516 | } |
| 517 | } else { |
| 518 | OMAP_MUX_TEST_FLAG(val, OMAP_PIN_INPUT); |
| 519 | } |
| 520 | } else { |
| 521 | i++; |
| 522 | flags[i] = "OMAP_PIN_OUTPUT"; |
| 523 | } |
| 524 | |
| 525 | do { |
| 526 | seq_printf(s, "%s", flags[i]); |
| 527 | if (i > 0) |
| 528 | seq_printf(s, " | "); |
| 529 | } while (i-- > 0); |
| 530 | } |
| 531 | |
| 532 | #define OMAP_MUX_DEFNAME_LEN 16 |
| 533 | |
| 534 | static int omap_mux_dbg_board_show(struct seq_file *s, void *unused) |
| 535 | { |
| 536 | struct omap_mux_entry *e; |
| 537 | |
| 538 | list_for_each_entry(e, &muxmodes, node) { |
| 539 | struct omap_mux *m = &e->mux; |
| 540 | char m0_def[OMAP_MUX_DEFNAME_LEN]; |
| 541 | char *m0_name = m->muxnames[0]; |
| 542 | u16 val; |
| 543 | int i, mode; |
| 544 | |
| 545 | if (!m0_name) |
| 546 | continue; |
| 547 | |
| 548 | for (i = 0; i < OMAP_MUX_DEFNAME_LEN; i++) { |
| 549 | if (m0_name[i] == '\0') { |
| 550 | m0_def[i] = m0_name[i]; |
| 551 | break; |
| 552 | } |
| 553 | m0_def[i] = toupper(m0_name[i]); |
| 554 | } |
| 555 | val = omap_mux_read(m->reg_offset); |
| 556 | mode = val & OMAP_MUX_MODE7; |
| 557 | |
| 558 | seq_printf(s, "OMAP%i_MUX(%s, ", |
| 559 | cpu_is_omap34xx() ? 3 : 0, m0_def); |
| 560 | omap_mux_decode(s, val); |
| 561 | seq_printf(s, "),\n"); |
| 562 | } |
| 563 | |
| 564 | return 0; |
| 565 | } |
| 566 | |
| 567 | static int omap_mux_dbg_board_open(struct inode *inode, struct file *file) |
| 568 | { |
| 569 | return single_open(file, omap_mux_dbg_board_show, &inode->i_private); |
| 570 | } |
| 571 | |
| 572 | static const struct file_operations omap_mux_dbg_board_fops = { |
| 573 | .open = omap_mux_dbg_board_open, |
| 574 | .read = seq_read, |
| 575 | .llseek = seq_lseek, |
| 576 | .release = single_release, |
| 577 | }; |
| 578 | |
| 579 | static int omap_mux_dbg_signal_show(struct seq_file *s, void *unused) |
| 580 | { |
| 581 | struct omap_mux *m = s->private; |
| 582 | const char *none = "NA"; |
| 583 | u16 val; |
| 584 | int mode; |
| 585 | |
| 586 | val = omap_mux_read(m->reg_offset); |
| 587 | mode = val & OMAP_MUX_MODE7; |
| 588 | |
| 589 | seq_printf(s, "name: %s.%s (0x%08lx/0x%03x = 0x%04x), b %s, t %s\n", |
| 590 | m->muxnames[0], m->muxnames[mode], |
| 591 | mux_phys + m->reg_offset, m->reg_offset, val, |
| 592 | m->balls[0] ? m->balls[0] : none, |
| 593 | m->balls[1] ? m->balls[1] : none); |
| 594 | seq_printf(s, "mode: "); |
| 595 | omap_mux_decode(s, val); |
| 596 | seq_printf(s, "\n"); |
| 597 | seq_printf(s, "signals: %s | %s | %s | %s | %s | %s | %s | %s\n", |
| 598 | m->muxnames[0] ? m->muxnames[0] : none, |
| 599 | m->muxnames[1] ? m->muxnames[1] : none, |
| 600 | m->muxnames[2] ? m->muxnames[2] : none, |
| 601 | m->muxnames[3] ? m->muxnames[3] : none, |
| 602 | m->muxnames[4] ? m->muxnames[4] : none, |
| 603 | m->muxnames[5] ? m->muxnames[5] : none, |
| 604 | m->muxnames[6] ? m->muxnames[6] : none, |
| 605 | m->muxnames[7] ? m->muxnames[7] : none); |
| 606 | |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | #define OMAP_MUX_MAX_ARG_CHAR 7 |
| 611 | |
| 612 | static ssize_t omap_mux_dbg_signal_write(struct file *file, |
| 613 | const char __user *user_buf, |
| 614 | size_t count, loff_t *ppos) |
| 615 | { |
| 616 | char buf[OMAP_MUX_MAX_ARG_CHAR]; |
| 617 | struct seq_file *seqf; |
| 618 | struct omap_mux *m; |
| 619 | unsigned long val; |
| 620 | int buf_size, ret; |
| 621 | |
| 622 | if (count > OMAP_MUX_MAX_ARG_CHAR) |
| 623 | return -EINVAL; |
| 624 | |
| 625 | memset(buf, 0, sizeof(buf)); |
| 626 | buf_size = min(count, sizeof(buf) - 1); |
| 627 | |
| 628 | if (copy_from_user(buf, user_buf, buf_size)) |
| 629 | return -EFAULT; |
| 630 | |
| 631 | ret = strict_strtoul(buf, 0x10, &val); |
| 632 | if (ret < 0) |
| 633 | return ret; |
| 634 | |
| 635 | if (val > 0xffff) |
| 636 | return -EINVAL; |
| 637 | |
| 638 | seqf = file->private_data; |
| 639 | m = seqf->private; |
| 640 | |
| 641 | omap_mux_write((u16)val, m->reg_offset); |
| 642 | *ppos += count; |
| 643 | |
| 644 | return count; |
| 645 | } |
| 646 | |
| 647 | static int omap_mux_dbg_signal_open(struct inode *inode, struct file *file) |
| 648 | { |
| 649 | return single_open(file, omap_mux_dbg_signal_show, inode->i_private); |
| 650 | } |
| 651 | |
| 652 | static const struct file_operations omap_mux_dbg_signal_fops = { |
| 653 | .open = omap_mux_dbg_signal_open, |
| 654 | .read = seq_read, |
| 655 | .write = omap_mux_dbg_signal_write, |
| 656 | .llseek = seq_lseek, |
| 657 | .release = single_release, |
| 658 | }; |
| 659 | |
| 660 | static struct dentry *mux_dbg_dir; |
| 661 | |
| 662 | static void __init omap_mux_dbg_init(void) |
| 663 | { |
| 664 | struct omap_mux_entry *e; |
| 665 | |
| 666 | mux_dbg_dir = debugfs_create_dir("omap_mux", NULL); |
| 667 | if (!mux_dbg_dir) |
| 668 | return; |
| 669 | |
| 670 | (void)debugfs_create_file("board", S_IRUGO, mux_dbg_dir, |
| 671 | NULL, &omap_mux_dbg_board_fops); |
| 672 | |
| 673 | list_for_each_entry(e, &muxmodes, node) { |
| 674 | struct omap_mux *m = &e->mux; |
| 675 | |
| 676 | (void)debugfs_create_file(m->muxnames[0], S_IWUGO, mux_dbg_dir, |
| 677 | m, &omap_mux_dbg_signal_fops); |
| 678 | } |
| 679 | } |
| 680 | |
| 681 | #else |
| 682 | static inline void omap_mux_dbg_init(void) |
| 683 | { |
| 684 | } |
| 685 | #endif /* CONFIG_DEBUG_FS */ |
| 686 | |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 687 | static void __init omap_mux_free_names(struct omap_mux *m) |
| 688 | { |
| 689 | int i; |
| 690 | |
| 691 | for (i = 0; i < OMAP_MUX_NR_MODES; i++) |
| 692 | kfree(m->muxnames[i]); |
| 693 | |
| 694 | #ifdef CONFIG_DEBUG_FS |
| 695 | for (i = 0; i < OMAP_MUX_NR_SIDES; i++) |
| 696 | kfree(m->balls[i]); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 697 | #endif |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 698 | |
| 699 | } |
| 700 | |
| 701 | /* Free all data except for GPIO pins unless CONFIG_DEBUG_FS is set */ |
| 702 | static int __init omap_mux_late_init(void) |
| 703 | { |
| 704 | struct omap_mux_entry *e, *tmp; |
| 705 | |
| 706 | list_for_each_entry_safe(e, tmp, &muxmodes, node) { |
| 707 | struct omap_mux *m = &e->mux; |
| 708 | u16 mode = omap_mux_read(m->reg_offset); |
| 709 | |
| 710 | if (OMAP_MODE_GPIO(mode)) |
| 711 | continue; |
| 712 | |
| 713 | #ifndef CONFIG_DEBUG_FS |
| 714 | mutex_lock(&muxmode_mutex); |
| 715 | list_del(&e->node); |
| 716 | mutex_unlock(&muxmode_mutex); |
| 717 | omap_mux_free_names(m); |
| 718 | kfree(m); |
| 719 | #endif |
| 720 | |
| 721 | } |
| 722 | |
Tony Lindgren | 4b715ef | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 723 | omap_mux_dbg_init(); |
| 724 | |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 725 | return 0; |
| 726 | } |
| 727 | late_initcall(omap_mux_late_init); |
| 728 | |
| 729 | static void __init omap_mux_package_fixup(struct omap_mux *p, |
| 730 | struct omap_mux *superset) |
| 731 | { |
| 732 | while (p->reg_offset != OMAP_MUX_TERMINATOR) { |
| 733 | struct omap_mux *s = superset; |
| 734 | int found = 0; |
| 735 | |
| 736 | while (s->reg_offset != OMAP_MUX_TERMINATOR) { |
| 737 | if (s->reg_offset == p->reg_offset) { |
| 738 | *s = *p; |
| 739 | found++; |
| 740 | break; |
| 741 | } |
| 742 | s++; |
| 743 | } |
| 744 | if (!found) |
| 745 | printk(KERN_ERR "mux: Unknown entry offset 0x%x\n", |
| 746 | p->reg_offset); |
| 747 | p++; |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | #ifdef CONFIG_DEBUG_FS |
| 752 | |
| 753 | static void __init omap_mux_package_init_balls(struct omap_ball *b, |
| 754 | struct omap_mux *superset) |
| 755 | { |
| 756 | while (b->reg_offset != OMAP_MUX_TERMINATOR) { |
| 757 | struct omap_mux *s = superset; |
| 758 | int found = 0; |
| 759 | |
| 760 | while (s->reg_offset != OMAP_MUX_TERMINATOR) { |
| 761 | if (s->reg_offset == b->reg_offset) { |
| 762 | s->balls[0] = b->balls[0]; |
| 763 | s->balls[1] = b->balls[1]; |
| 764 | found++; |
| 765 | break; |
| 766 | } |
| 767 | s++; |
| 768 | } |
| 769 | if (!found) |
| 770 | printk(KERN_ERR "mux: Unknown ball offset 0x%x\n", |
| 771 | b->reg_offset); |
| 772 | b++; |
| 773 | } |
| 774 | } |
| 775 | |
| 776 | #else /* CONFIG_DEBUG_FS */ |
| 777 | |
| 778 | static inline void omap_mux_package_init_balls(struct omap_ball *b, |
| 779 | struct omap_mux *superset) |
| 780 | { |
| 781 | } |
| 782 | |
| 783 | #endif /* CONFIG_DEBUG_FS */ |
| 784 | |
| 785 | static int __init omap_mux_setup(char *options) |
| 786 | { |
| 787 | if (!options) |
| 788 | return 0; |
| 789 | |
| 790 | omap_mux_options = options; |
| 791 | |
| 792 | return 1; |
| 793 | } |
| 794 | __setup("omap_mux=", omap_mux_setup); |
| 795 | |
| 796 | /* |
| 797 | * Note that the omap_mux=some.signal1=0x1234,some.signal2=0x1234 |
| 798 | * cmdline options only override the bootloader values. |
| 799 | * During development, please enable CONFIG_DEBUG_FS, and use the |
| 800 | * signal specific entries under debugfs. |
| 801 | */ |
| 802 | static void __init omap_mux_set_cmdline_signals(void) |
| 803 | { |
| 804 | char *options, *next_opt, *token; |
| 805 | |
| 806 | if (!omap_mux_options) |
| 807 | return; |
| 808 | |
| 809 | options = kmalloc(strlen(omap_mux_options) + 1, GFP_KERNEL); |
| 810 | if (!options) |
| 811 | return; |
| 812 | |
| 813 | strcpy(options, omap_mux_options); |
| 814 | next_opt = options; |
| 815 | |
| 816 | while ((token = strsep(&next_opt, ",")) != NULL) { |
| 817 | char *keyval, *name; |
| 818 | unsigned long val; |
| 819 | |
| 820 | keyval = token; |
| 821 | name = strsep(&keyval, "="); |
| 822 | if (name) { |
| 823 | int res; |
| 824 | |
| 825 | res = strict_strtoul(keyval, 0x10, &val); |
| 826 | if (res < 0) |
| 827 | continue; |
| 828 | |
| 829 | omap_mux_init_signal(name, (u16)val); |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | kfree(options); |
| 834 | } |
| 835 | |
| 836 | static void __init omap_mux_set_board_signals(struct omap_board_mux *board_mux) |
| 837 | { |
| 838 | while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) { |
| 839 | omap_mux_write(board_mux->value, board_mux->reg_offset); |
| 840 | board_mux++; |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | static int __init omap_mux_copy_names(struct omap_mux *src, |
| 845 | struct omap_mux *dst) |
| 846 | { |
| 847 | int i; |
| 848 | |
| 849 | for (i = 0; i < OMAP_MUX_NR_MODES; i++) { |
| 850 | if (src->muxnames[i]) { |
| 851 | dst->muxnames[i] = |
| 852 | kmalloc(strlen(src->muxnames[i]) + 1, |
| 853 | GFP_KERNEL); |
| 854 | if (!dst->muxnames[i]) |
| 855 | goto free; |
| 856 | strcpy(dst->muxnames[i], src->muxnames[i]); |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | #ifdef CONFIG_DEBUG_FS |
| 861 | for (i = 0; i < OMAP_MUX_NR_SIDES; i++) { |
| 862 | if (src->balls[i]) { |
| 863 | dst->balls[i] = |
| 864 | kmalloc(strlen(src->balls[i]) + 1, |
| 865 | GFP_KERNEL); |
| 866 | if (!dst->balls[i]) |
| 867 | goto free; |
| 868 | strcpy(dst->balls[i], src->balls[i]); |
| 869 | } |
| 870 | } |
| 871 | #endif |
| 872 | |
| 873 | return 0; |
| 874 | |
| 875 | free: |
| 876 | omap_mux_free_names(dst); |
| 877 | return -ENOMEM; |
| 878 | |
| 879 | } |
| 880 | |
| 881 | #endif /* CONFIG_OMAP_MUX */ |
| 882 | |
| 883 | static u16 omap_mux_get_by_gpio(int gpio) |
| 884 | { |
| 885 | struct omap_mux_entry *e; |
| 886 | u16 offset = OMAP_MUX_TERMINATOR; |
| 887 | |
| 888 | list_for_each_entry(e, &muxmodes, node) { |
| 889 | struct omap_mux *m = &e->mux; |
| 890 | if (m->gpio == gpio) { |
| 891 | offset = m->reg_offset; |
| 892 | break; |
| 893 | } |
| 894 | } |
| 895 | |
| 896 | return offset; |
| 897 | } |
| 898 | |
| 899 | /* Needed for dynamic muxing of GPIO pins for off-idle */ |
| 900 | u16 omap_mux_get_gpio(int gpio) |
| 901 | { |
| 902 | u16 offset; |
| 903 | |
| 904 | offset = omap_mux_get_by_gpio(gpio); |
| 905 | if (offset == OMAP_MUX_TERMINATOR) { |
| 906 | printk(KERN_ERR "mux: Could not get gpio%i\n", gpio); |
| 907 | return offset; |
| 908 | } |
| 909 | |
| 910 | return omap_mux_read(offset); |
| 911 | } |
| 912 | |
| 913 | /* Needed for dynamic muxing of GPIO pins for off-idle */ |
| 914 | void omap_mux_set_gpio(u16 val, int gpio) |
| 915 | { |
| 916 | u16 offset; |
| 917 | |
| 918 | offset = omap_mux_get_by_gpio(gpio); |
| 919 | if (offset == OMAP_MUX_TERMINATOR) { |
| 920 | printk(KERN_ERR "mux: Could not set gpio%i\n", gpio); |
| 921 | return; |
| 922 | } |
| 923 | |
| 924 | omap_mux_write(val, offset); |
| 925 | } |
| 926 | |
| 927 | static struct omap_mux * __init omap_mux_list_add(struct omap_mux *src) |
| 928 | { |
| 929 | struct omap_mux_entry *entry; |
| 930 | struct omap_mux *m; |
| 931 | |
| 932 | entry = kzalloc(sizeof(struct omap_mux_entry), GFP_KERNEL); |
| 933 | if (!entry) |
| 934 | return NULL; |
| 935 | |
| 936 | m = &entry->mux; |
| 937 | memcpy(m, src, sizeof(struct omap_mux_entry)); |
| 938 | |
| 939 | #ifdef CONFIG_OMAP_MUX |
| 940 | if (omap_mux_copy_names(src, m)) { |
| 941 | kfree(entry); |
| 942 | return NULL; |
| 943 | } |
| 944 | #endif |
| 945 | |
| 946 | mutex_lock(&muxmode_mutex); |
| 947 | list_add_tail(&entry->node, &muxmodes); |
| 948 | mutex_unlock(&muxmode_mutex); |
| 949 | |
| 950 | return m; |
| 951 | } |
| 952 | |
| 953 | /* |
| 954 | * Note if CONFIG_OMAP_MUX is not selected, we will only initialize |
| 955 | * the GPIO to mux offset mapping that is needed for dynamic muxing |
| 956 | * of GPIO pins for off-idle. |
| 957 | */ |
| 958 | static void __init omap_mux_init_list(struct omap_mux *superset) |
| 959 | { |
| 960 | while (superset->reg_offset != OMAP_MUX_TERMINATOR) { |
| 961 | struct omap_mux *entry; |
| 962 | |
| 963 | #ifndef CONFIG_OMAP_MUX |
| 964 | /* Skip pins that are not muxed as GPIO by bootloader */ |
| 965 | if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) { |
| 966 | superset++; |
| 967 | continue; |
| 968 | } |
| 969 | #endif |
| 970 | |
| 971 | entry = omap_mux_list_add(superset); |
| 972 | if (!entry) { |
| 973 | printk(KERN_ERR "mux: Could not add entry\n"); |
| 974 | return; |
| 975 | } |
| 976 | superset++; |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | int __init omap_mux_init(u32 mux_pbase, u32 mux_size, |
| 981 | struct omap_mux *superset, |
| 982 | struct omap_mux *package_subset, |
| 983 | struct omap_board_mux *board_mux, |
| 984 | struct omap_ball *package_balls) |
| 985 | { |
| 986 | if (mux_base) |
| 987 | return -EBUSY; |
| 988 | |
Tony Lindgren | 4b715ef | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 989 | mux_phys = mux_pbase; |
Tony Lindgren | 15ac7af | 2009-12-11 16:16:32 -0800 | [diff] [blame] | 990 | mux_base = ioremap(mux_pbase, mux_size); |
| 991 | if (!mux_base) { |
| 992 | printk(KERN_ERR "mux: Could not ioremap\n"); |
| 993 | return -ENODEV; |
| 994 | } |
| 995 | |
| 996 | #ifdef CONFIG_OMAP_MUX |
| 997 | omap_mux_package_fixup(package_subset, superset); |
| 998 | omap_mux_package_init_balls(package_balls, superset); |
| 999 | omap_mux_set_cmdline_signals(); |
| 1000 | omap_mux_set_board_signals(board_mux); |
| 1001 | #endif |
| 1002 | |
| 1003 | omap_mux_init_list(superset); |
| 1004 | |
| 1005 | return 0; |
| 1006 | } |
| 1007 | |
| 1008 | #endif /* CONFIG_ARCH_OMAP34XX */ |
Tony Lindgren | 15f45e6 | 2009-12-11 16:16:33 -0800 | [diff] [blame] | 1009 | |