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mux.c
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1 /*
2  * linux/arch/arm/mach-omap1/mux.c
3  *
4  * OMAP1 pin multiplexing configurations
5  *
6  * Copyright (C) 2003 - 2008 Nokia Corporation
7  *
8  * Written by Tony Lindgren
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23  *
24  */
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/io.h>
28 #include <linux/spinlock.h>
29 
30 #include <mach/hardware.h>
31 
32 #include <mach/mux.h>
33 
34 #ifdef CONFIG_OMAP_MUX
35 
36 static struct omap_mux_cfg arch_mux_cfg;
37 
38 #if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
39 static struct pin_config __initdata_or_module omap7xx_pins[] = {
40 MUX_CFG_7XX("E2_7XX_KBR0", 12, 21, 0, 20, 1, 0)
41 MUX_CFG_7XX("J7_7XX_KBR1", 12, 25, 0, 24, 1, 0)
42 MUX_CFG_7XX("E1_7XX_KBR2", 12, 29, 0, 28, 1, 0)
43 MUX_CFG_7XX("F3_7XX_KBR3", 13, 1, 0, 0, 1, 0)
44 MUX_CFG_7XX("D2_7XX_KBR4", 13, 5, 0, 4, 1, 0)
45 MUX_CFG_7XX("C2_7XX_KBC0", 13, 9, 0, 8, 1, 0)
46 MUX_CFG_7XX("D3_7XX_KBC1", 13, 13, 0, 12, 1, 0)
47 MUX_CFG_7XX("E4_7XX_KBC2", 13, 17, 0, 16, 1, 0)
48 MUX_CFG_7XX("F4_7XX_KBC3", 13, 21, 0, 20, 1, 0)
49 MUX_CFG_7XX("E3_7XX_KBC4", 13, 25, 0, 24, 1, 0)
50 
51 MUX_CFG_7XX("AA17_7XX_USB_DM", 2, 21, 0, 20, 0, 0)
52 MUX_CFG_7XX("W16_7XX_USB_PU_EN", 2, 25, 0, 24, 0, 0)
53 MUX_CFG_7XX("W17_7XX_USB_VBUSI", 2, 29, 6, 28, 1, 0)
54 MUX_CFG_7XX("W18_7XX_USB_DMCK_OUT",3, 3, 1, 2, 0, 0)
55 MUX_CFG_7XX("W19_7XX_USB_DCRST", 3, 7, 1, 6, 0, 0)
56 
57 /* MMC Pins */
58 MUX_CFG_7XX("MMC_7XX_CMD", 2, 9, 0, 8, 1, 0)
59 MUX_CFG_7XX("MMC_7XX_CLK", 2, 13, 0, 12, 1, 0)
60 MUX_CFG_7XX("MMC_7XX_DAT0", 2, 17, 0, 16, 1, 0)
61 
62 /* I2C interface */
63 MUX_CFG_7XX("I2C_7XX_SCL", 5, 1, 0, 0, 1, 0)
64 MUX_CFG_7XX("I2C_7XX_SDA", 5, 5, 0, 0, 1, 0)
65 
66 /* SPI pins */
67 MUX_CFG_7XX("SPI_7XX_1", 6, 5, 4, 4, 1, 0)
68 MUX_CFG_7XX("SPI_7XX_2", 6, 9, 4, 8, 1, 0)
69 MUX_CFG_7XX("SPI_7XX_3", 6, 13, 4, 12, 1, 0)
70 MUX_CFG_7XX("SPI_7XX_4", 6, 17, 4, 16, 1, 0)
71 MUX_CFG_7XX("SPI_7XX_5", 8, 25, 0, 24, 0, 0)
72 MUX_CFG_7XX("SPI_7XX_6", 9, 5, 0, 4, 0, 0)
73 
74 /* UART pins */
75 MUX_CFG_7XX("UART_7XX_1", 3, 21, 0, 20, 0, 0)
76 MUX_CFG_7XX("UART_7XX_2", 8, 1, 6, 0, 0, 0)
77 };
78 #define OMAP7XX_PINS_SZ ARRAY_SIZE(omap7xx_pins)
79 #else
80 #define omap7xx_pins NULL
81 #define OMAP7XX_PINS_SZ 0
82 #endif /* CONFIG_ARCH_OMAP730 || CONFIG_ARCH_OMAP850 */
83 
84 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
85 static struct pin_config __initdata_or_module omap1xxx_pins[] = {
86 /*
87  * description mux mode mux pull pull pull pu_pd pu dbg
88  * reg offset mode reg bit ena reg
89  */
90 MUX_CFG("UART1_TX", 9, 21, 1, 2, 3, 0, NA, 0, 0)
91 MUX_CFG("UART1_RTS", 9, 12, 1, 2, 0, 0, NA, 0, 0)
92 
93 /* UART2 (COM_UART_GATING), conflicts with USB2 */
94 MUX_CFG("UART2_TX", C, 27, 1, 3, 3, 0, NA, 0, 0)
95 MUX_CFG("UART2_RX", C, 18, 0, 3, 1, 1, NA, 0, 0)
96 MUX_CFG("UART2_CTS", C, 21, 0, 3, 1, 1, NA, 0, 0)
97 MUX_CFG("UART2_RTS", C, 24, 1, 3, 2, 0, NA, 0, 0)
98 
99 /* UART3 (GIGA_UART_GATING) */
100 MUX_CFG("UART3_TX", 6, 0, 1, 0, 30, 0, NA, 0, 0)
101 MUX_CFG("UART3_RX", 6, 3, 0, 0, 31, 1, NA, 0, 0)
102 MUX_CFG("UART3_CTS", 5, 12, 2, 0, 24, 0, NA, 0, 0)
103 MUX_CFG("UART3_RTS", 5, 15, 2, 0, 25, 0, NA, 0, 0)
104 MUX_CFG("UART3_CLKREQ", 9, 27, 0, 2, 5, 0, NA, 0, 0)
105 MUX_CFG("UART3_BCLK", A, 0, 0, 2, 6, 0, NA, 0, 0)
106 MUX_CFG("Y15_1610_UART3_RTS", A, 0, 1, 2, 6, 0, NA, 0, 0)
107 
108 /* PWT & PWL, conflicts with UART3 */
109 MUX_CFG("PWT", 6, 0, 2, 0, 30, 0, NA, 0, 0)
110 MUX_CFG("PWL", 6, 3, 1, 0, 31, 1, NA, 0, 0)
111 
112 /* USB internal master generic */
113 MUX_CFG("R18_USB_VBUS", 7, 9, 2, 1, 11, 0, NA, 0, 1)
114 MUX_CFG("R18_1510_USB_GPIO0", 7, 9, 0, 1, 11, 1, NA, 0, 1)
115 /* works around erratum: W4_USB_PUEN and W4_USB_PUDIS are switched! */
116 MUX_CFG("W4_USB_PUEN", D, 3, 3, 3, 5, 1, NA, 0, 1)
117 MUX_CFG("W4_USB_CLKO", D, 3, 1, 3, 5, 0, NA, 0, 1)
118 MUX_CFG("W4_USB_HIGHZ", D, 3, 4, 3, 5, 0, 3, 0, 1)
119 MUX_CFG("W4_GPIO58", D, 3, 7, 3, 5, 0, 3, 0, 1)
120 
121 /* USB1 master */
122 MUX_CFG("USB1_SUSP", 8, 27, 2, 1, 27, 0, NA, 0, 1)
123 MUX_CFG("USB1_SE0", 9, 0, 2, 1, 28, 0, NA, 0, 1)
124 MUX_CFG("W13_1610_USB1_SE0", 9, 0, 4, 1, 28, 0, NA, 0, 1)
125 MUX_CFG("USB1_TXEN", 9, 3, 2, 1, 29, 0, NA, 0, 1)
126 MUX_CFG("USB1_TXD", 9, 24, 1, 2, 4, 0, NA, 0, 1)
127 MUX_CFG("USB1_VP", A, 3, 1, 2, 7, 0, NA, 0, 1)
128 MUX_CFG("USB1_VM", A, 6, 1, 2, 8, 0, NA, 0, 1)
129 MUX_CFG("USB1_RCV", A, 9, 1, 2, 9, 0, NA, 0, 1)
130 MUX_CFG("USB1_SPEED", A, 12, 2, 2, 10, 0, NA, 0, 1)
131 MUX_CFG("R13_1610_USB1_SPEED", A, 12, 5, 2, 10, 0, NA, 0, 1)
132 MUX_CFG("R13_1710_USB1_SEO", A, 12, 5, 2, 10, 0, NA, 0, 1)
133 
134 /* USB2 master */
135 MUX_CFG("USB2_SUSP", B, 3, 1, 2, 17, 0, NA, 0, 1)
136 MUX_CFG("USB2_VP", B, 6, 1, 2, 18, 0, NA, 0, 1)
137 MUX_CFG("USB2_TXEN", B, 9, 1, 2, 19, 0, NA, 0, 1)
138 MUX_CFG("USB2_VM", C, 18, 1, 3, 0, 0, NA, 0, 1)
139 MUX_CFG("USB2_RCV", C, 21, 1, 3, 1, 0, NA, 0, 1)
140 MUX_CFG("USB2_SE0", C, 24, 2, 3, 2, 0, NA, 0, 1)
141 MUX_CFG("USB2_TXD", C, 27, 2, 3, 3, 0, NA, 0, 1)
142 
143 /* OMAP-1510 GPIO */
144 MUX_CFG("R18_1510_GPIO0", 7, 9, 0, 1, 11, 1, 0, 0, 1)
145 MUX_CFG("R19_1510_GPIO1", 7, 6, 0, 1, 10, 1, 0, 0, 1)
146 MUX_CFG("M14_1510_GPIO2", 7, 3, 0, 1, 9, 1, 0, 0, 1)
147 
148 /* OMAP1610 GPIO */
149 MUX_CFG("P18_1610_GPIO3", 7, 0, 0, 1, 8, 0, NA, 0, 1)
150 MUX_CFG("Y15_1610_GPIO17", A, 0, 7, 2, 6, 0, NA, 0, 1)
151 
152 /* OMAP-1710 GPIO */
153 MUX_CFG("R18_1710_GPIO0", 7, 9, 0, 1, 11, 1, 1, 1, 1)
154 MUX_CFG("V2_1710_GPIO10", F, 27, 1, 4, 3, 1, 4, 1, 1)
155 MUX_CFG("N21_1710_GPIO14", 6, 9, 0, 1, 1, 1, 1, 1, 1)
156 MUX_CFG("W15_1710_GPIO40", 9, 27, 7, 2, 5, 1, 2, 1, 1)
157 
158 /* MPUIO */
159 MUX_CFG("MPUIO2", 7, 18, 0, 1, 14, 1, NA, 0, 1)
160 MUX_CFG("N15_1610_MPUIO2", 7, 18, 0, 1, 14, 1, 1, 0, 1)
161 MUX_CFG("MPUIO4", 7, 15, 0, 1, 13, 1, NA, 0, 1)
162 MUX_CFG("MPUIO5", 7, 12, 0, 1, 12, 1, NA, 0, 1)
163 
164 MUX_CFG("T20_1610_MPUIO5", 7, 12, 0, 1, 12, 0, 3, 0, 1)
165 MUX_CFG("W11_1610_MPUIO6", 10, 15, 2, 3, 8, 0, 3, 0, 1)
166 MUX_CFG("V10_1610_MPUIO7", A, 24, 2, 2, 14, 0, 2, 0, 1)
167 MUX_CFG("W11_1610_MPUIO9", 10, 15, 1, 3, 8, 0, 3, 0, 1)
168 MUX_CFG("V10_1610_MPUIO10", A, 24, 1, 2, 14, 0, 2, 0, 1)
169 MUX_CFG("W10_1610_MPUIO11", A, 18, 2, 2, 11, 0, 2, 0, 1)
170 MUX_CFG("E20_1610_MPUIO13", 3, 21, 1, 0, 7, 0, 0, 0, 1)
171 MUX_CFG("U20_1610_MPUIO14", 9, 6, 6, 0, 30, 0, 0, 0, 1)
172 MUX_CFG("E19_1610_MPUIO15", 3, 18, 1, 0, 6, 0, 0, 0, 1)
173 
174 /* MCBSP2 */
175 MUX_CFG("MCBSP2_CLKR", C, 6, 0, 2, 27, 1, NA, 0, 1)
176 MUX_CFG("MCBSP2_CLKX", C, 9, 0, 2, 29, 1, NA, 0, 1)
177 MUX_CFG("MCBSP2_DR", C, 0, 0, 2, 26, 1, NA, 0, 1)
178 MUX_CFG("MCBSP2_DX", C, 15, 0, 2, 31, 1, NA, 0, 1)
179 MUX_CFG("MCBSP2_FSR", C, 12, 0, 2, 30, 1, NA, 0, 1)
180 MUX_CFG("MCBSP2_FSX", C, 3, 0, 2, 27, 1, NA, 0, 1)
181 
182 /* MCBSP3 NOTE: Mode must 1 for clock */
183 MUX_CFG("MCBSP3_CLKX", 9, 3, 1, 1, 29, 0, NA, 0, 1)
184 
185 /* Misc ballouts */
186 MUX_CFG("BALLOUT_V8_ARMIO3", B, 18, 0, 2, 25, 1, NA, 0, 1)
187 MUX_CFG("N20_HDQ", 6, 18, 1, 1, 4, 0, 1, 4, 0)
188 
189 /* OMAP-1610 MMC2 */
190 MUX_CFG("W8_1610_MMC2_DAT0", B, 21, 6, 2, 23, 1, 2, 1, 1)
191 MUX_CFG("V8_1610_MMC2_DAT1", B, 27, 6, 2, 25, 1, 2, 1, 1)
192 MUX_CFG("W15_1610_MMC2_DAT2", 9, 12, 6, 2, 5, 1, 2, 1, 1)
193 MUX_CFG("R10_1610_MMC2_DAT3", B, 18, 6, 2, 22, 1, 2, 1, 1)
194 MUX_CFG("Y10_1610_MMC2_CLK", B, 3, 6, 2, 17, 0, 2, 0, 1)
195 MUX_CFG("Y8_1610_MMC2_CMD", B, 24, 6, 2, 24, 1, 2, 1, 1)
196 MUX_CFG("V9_1610_MMC2_CMDDIR", B, 12, 6, 2, 20, 0, 2, 1, 1)
197 MUX_CFG("V5_1610_MMC2_DATDIR0", B, 15, 6, 2, 21, 0, 2, 1, 1)
198 MUX_CFG("W19_1610_MMC2_DATDIR1", 8, 15, 6, 1, 23, 0, 1, 1, 1)
199 MUX_CFG("R18_1610_MMC2_CLKIN", 7, 9, 6, 1, 11, 0, 1, 11, 1)
200 
201 /* OMAP-1610 External Trace Interface */
202 MUX_CFG("M19_1610_ETM_PSTAT0", 5, 27, 1, 0, 29, 0, 0, 0, 1)
203 MUX_CFG("L15_1610_ETM_PSTAT1", 5, 24, 1, 0, 28, 0, 0, 0, 1)
204 MUX_CFG("L18_1610_ETM_PSTAT2", 5, 21, 1, 0, 27, 0, 0, 0, 1)
205 MUX_CFG("L19_1610_ETM_D0", 5, 18, 1, 0, 26, 0, 0, 0, 1)
206 MUX_CFG("J19_1610_ETM_D6", 5, 0, 1, 0, 20, 0, 0, 0, 1)
207 MUX_CFG("J18_1610_ETM_D7", 5, 27, 1, 0, 19, 0, 0, 0, 1)
208 
209 /* OMAP16XX GPIO */
210 MUX_CFG("P20_1610_GPIO4", 6, 27, 0, 1, 7, 0, 1, 1, 1)
211 MUX_CFG("V9_1610_GPIO7", B, 12, 1, 2, 20, 0, 2, 1, 1)
212 MUX_CFG("W8_1610_GPIO9", B, 21, 0, 2, 23, 0, 2, 1, 1)
213 MUX_CFG("N20_1610_GPIO11", 6, 18, 0, 1, 4, 0, 1, 1, 1)
214 MUX_CFG("N19_1610_GPIO13", 6, 12, 0, 1, 2, 0, 1, 1, 1)
215 MUX_CFG("P10_1610_GPIO22", C, 0, 7, 2, 26, 0, 2, 1, 1)
216 MUX_CFG("V5_1610_GPIO24", B, 15, 7, 2, 21, 0, 2, 1, 1)
217 MUX_CFG("AA20_1610_GPIO_41", 9, 9, 7, 1, 31, 0, 1, 1, 1)
218 MUX_CFG("W19_1610_GPIO48", 8, 15, 7, 1, 23, 1, 1, 0, 1)
219 MUX_CFG("M7_1610_GPIO62", 10, 0, 0, 4, 24, 0, 4, 0, 1)
220 MUX_CFG("V14_16XX_GPIO37", 9, 18, 7, 2, 2, 0, 2, 2, 0)
221 MUX_CFG("R9_16XX_GPIO18", C, 18, 7, 3, 0, 0, 3, 0, 0)
222 MUX_CFG("L14_16XX_GPIO49", 6, 3, 7, 0, 31, 0, 0, 31, 0)
223 
224 /* OMAP-1610 uWire */
225 MUX_CFG("V19_1610_UWIRE_SCLK", 8, 6, 0, 1, 20, 0, 1, 1, 1)
226 MUX_CFG("U18_1610_UWIRE_SDI", 8, 0, 0, 1, 18, 0, 1, 1, 1)
227 MUX_CFG("W21_1610_UWIRE_SDO", 8, 3, 0, 1, 19, 0, 1, 1, 1)
228 MUX_CFG("N14_1610_UWIRE_CS0", 8, 9, 1, 1, 21, 0, 1, 1, 1)
229 MUX_CFG("P15_1610_UWIRE_CS3", 8, 12, 1, 1, 22, 0, 1, 1, 1)
230 MUX_CFG("N15_1610_UWIRE_CS1", 7, 18, 2, 1, 14, 0, NA, 0, 1)
231 
232 /* OMAP-1610 SPI */
233 MUX_CFG("U19_1610_SPIF_SCK", 7, 21, 6, 1, 15, 0, 1, 1, 1)
234 MUX_CFG("U18_1610_SPIF_DIN", 8, 0, 6, 1, 18, 1, 1, 0, 1)
235 MUX_CFG("P20_1610_SPIF_DIN", 6, 27, 4, 1, 7, 1, 1, 0, 1)
236 MUX_CFG("W21_1610_SPIF_DOUT", 8, 3, 6, 1, 19, 0, 1, 0, 1)
237 MUX_CFG("R18_1610_SPIF_DOUT", 7, 9, 3, 1, 11, 0, 1, 0, 1)
238 MUX_CFG("N14_1610_SPIF_CS0", 8, 9, 6, 1, 21, 0, 1, 1, 1)
239 MUX_CFG("N15_1610_SPIF_CS1", 7, 18, 6, 1, 14, 0, 1, 1, 1)
240 MUX_CFG("T19_1610_SPIF_CS2", 7, 15, 4, 1, 13, 0, 1, 1, 1)
241 MUX_CFG("P15_1610_SPIF_CS3", 8, 12, 3, 1, 22, 0, 1, 1, 1)
242 
243 /* OMAP-1610 Flash */
244 MUX_CFG("L3_1610_FLASH_CS2B_OE",10, 6, 1, NA, 0, 0, NA, 0, 1)
245 MUX_CFG("M8_1610_FLASH_CS2B_WE",10, 3, 1, NA, 0, 0, NA, 0, 1)
246 
247 /* First MMC interface, same on 1510, 1610 and 1710 */
248 MUX_CFG("MMC_CMD", A, 27, 0, 2, 15, 1, 2, 1, 1)
249 MUX_CFG("MMC_DAT1", A, 24, 0, 2, 14, 1, 2, 1, 1)
250 MUX_CFG("MMC_DAT2", A, 18, 0, 2, 12, 1, 2, 1, 1)
251 MUX_CFG("MMC_DAT0", B, 0, 0, 2, 16, 1, 2, 1, 1)
252 MUX_CFG("MMC_CLK", A, 21, 0, NA, 0, 0, NA, 0, 1)
253 MUX_CFG("MMC_DAT3", 10, 15, 0, 3, 8, 1, 3, 1, 1)
254 MUX_CFG("M15_1710_MMC_CLKI", 6, 21, 2, 0, 0, 0, NA, 0, 1)
255 MUX_CFG("P19_1710_MMC_CMDDIR", 6, 24, 6, 0, 0, 0, NA, 0, 1)
256 MUX_CFG("P20_1710_MMC_DATDIR0", 6, 27, 5, 0, 0, 0, NA, 0, 1)
257 
258 /* OMAP-1610 USB0 alternate configuration */
259 MUX_CFG("W9_USB0_TXEN", B, 9, 5, 2, 19, 0, 2, 0, 1)
260 MUX_CFG("AA9_USB0_VP", B, 6, 5, 2, 18, 0, 2, 0, 1)
261 MUX_CFG("Y5_USB0_RCV", C, 21, 5, 3, 1, 0, 1, 0, 1)
262 MUX_CFG("R9_USB0_VM", C, 18, 5, 3, 0, 0, 3, 0, 1)
263 MUX_CFG("V6_USB0_TXD", C, 27, 5, 3, 3, 0, 3, 0, 1)
264 MUX_CFG("W5_USB0_SE0", C, 24, 5, 3, 2, 0, 3, 0, 1)
265 MUX_CFG("V9_USB0_SPEED", B, 12, 5, 2, 20, 0, 2, 0, 1)
266 MUX_CFG("Y10_USB0_SUSP", B, 3, 5, 2, 17, 0, 2, 0, 1)
267 
268 /* USB2 interface */
269 MUX_CFG("W9_USB2_TXEN", B, 9, 1, NA, 0, 0, NA, 0, 1)
270 MUX_CFG("AA9_USB2_VP", B, 6, 1, NA, 0, 0, NA, 0, 1)
271 MUX_CFG("Y5_USB2_RCV", C, 21, 1, NA, 0, 0, NA, 0, 1)
272 MUX_CFG("R9_USB2_VM", C, 18, 1, NA, 0, 0, NA, 0, 1)
273 MUX_CFG("V6_USB2_TXD", C, 27, 2, NA, 0, 0, NA, 0, 1)
274 MUX_CFG("W5_USB2_SE0", C, 24, 2, NA, 0, 0, NA, 0, 1)
275 
276 /* 16XX UART */
277 MUX_CFG("R13_1610_UART1_TX", A, 12, 6, 2, 10, 0, 2, 10, 1)
278 MUX_CFG("V14_16XX_UART1_RX", 9, 18, 0, 2, 2, 0, 2, 2, 1)
279 MUX_CFG("R14_1610_UART1_CTS", 9, 15, 0, 2, 1, 0, 2, 1, 1)
280 MUX_CFG("AA15_1610_UART1_RTS", 9, 12, 1, 2, 0, 0, 2, 0, 1)
281 MUX_CFG("R9_16XX_UART2_RX", C, 18, 0, 3, 0, 0, 3, 0, 1)
282 MUX_CFG("L14_16XX_UART3_RX", 6, 3, 0, 0, 31, 0, 0, 31, 1)
283 
284 /* I2C interface */
285 MUX_CFG("I2C_SCL", 7, 24, 0, NA, 0, 0, NA, 0, 0)
286 MUX_CFG("I2C_SDA", 7, 27, 0, NA, 0, 0, NA, 0, 0)
287 
288 /* Keypad */
289 MUX_CFG("F18_1610_KBC0", 3, 15, 0, 0, 5, 1, 0, 0, 0)
290 MUX_CFG("D20_1610_KBC1", 3, 12, 0, 0, 4, 1, 0, 0, 0)
291 MUX_CFG("D19_1610_KBC2", 3, 9, 0, 0, 3, 1, 0, 0, 0)
292 MUX_CFG("E18_1610_KBC3", 3, 6, 0, 0, 2, 1, 0, 0, 0)
293 MUX_CFG("C21_1610_KBC4", 3, 3, 0, 0, 1, 1, 0, 0, 0)
294 MUX_CFG("G18_1610_KBR0", 4, 0, 0, 0, 10, 1, 0, 1, 0)
295 MUX_CFG("F19_1610_KBR1", 3, 27, 0, 0, 9, 1, 0, 1, 0)
296 MUX_CFG("H14_1610_KBR2", 3, 24, 0, 0, 8, 1, 0, 1, 0)
297 MUX_CFG("E20_1610_KBR3", 3, 21, 0, 0, 7, 1, 0, 1, 0)
298 MUX_CFG("E19_1610_KBR4", 3, 18, 0, 0, 6, 1, 0, 1, 0)
299 MUX_CFG("N19_1610_KBR5", 6, 12, 1, 1, 2, 1, 1, 1, 0)
300 
301 /* Power management */
302 MUX_CFG("T20_1610_LOW_PWR", 7, 12, 1, NA, 0, 0, NA, 0, 0)
303 
304 /* MCLK Settings */
305 MUX_CFG("V5_1710_MCLK_ON", B, 15, 0, NA, 0, 0, NA, 0, 0)
306 MUX_CFG("V5_1710_MCLK_OFF", B, 15, 6, NA, 0, 0, NA, 0, 0)
307 MUX_CFG("R10_1610_MCLK_ON", B, 18, 0, NA, 22, 0, NA, 1, 0)
308 MUX_CFG("R10_1610_MCLK_OFF", B, 18, 6, 2, 22, 1, 2, 1, 1)
309 
310 /* CompactFlash controller, conflicts with MMC1 */
311 MUX_CFG("P11_1610_CF_CD2", A, 27, 3, 2, 15, 1, 2, 1, 1)
312 MUX_CFG("R11_1610_CF_IOIS16", B, 0, 3, 2, 16, 1, 2, 1, 1)
313 MUX_CFG("V10_1610_CF_IREQ", A, 24, 3, 2, 14, 0, 2, 0, 1)
314 MUX_CFG("W10_1610_CF_RESET", A, 18, 3, 2, 12, 1, 2, 1, 1)
315 MUX_CFG("W11_1610_CF_CD1", 10, 15, 3, 3, 8, 1, 3, 1, 1)
316 
317 /* parallel camera */
318 MUX_CFG("J15_1610_CAM_LCLK", 4, 24, 0, 0, 18, 1, 0, 0, 0)
319 MUX_CFG("J18_1610_CAM_D7", 4, 27, 0, 0, 19, 1, 0, 0, 0)
320 MUX_CFG("J19_1610_CAM_D6", 5, 0, 0, 0, 20, 1, 0, 0, 0)
321 MUX_CFG("J14_1610_CAM_D5", 5, 3, 0, 0, 21, 1, 0, 0, 0)
322 MUX_CFG("K18_1610_CAM_D4", 5, 6, 0, 0, 22, 1, 0, 0, 0)
323 MUX_CFG("K19_1610_CAM_D3", 5, 9, 0, 0, 23, 1, 0, 0, 0)
324 MUX_CFG("K15_1610_CAM_D2", 5, 12, 0, 0, 24, 1, 0, 0, 0)
325 MUX_CFG("K14_1610_CAM_D1", 5, 15, 0, 0, 25, 1, 0, 0, 0)
326 MUX_CFG("L19_1610_CAM_D0", 5, 18, 0, 0, 26, 1, 0, 0, 0)
327 MUX_CFG("L18_1610_CAM_VS", 5, 21, 0, 0, 27, 1, 0, 0, 0)
328 MUX_CFG("L15_1610_CAM_HS", 5, 24, 0, 0, 28, 1, 0, 0, 0)
329 MUX_CFG("M19_1610_CAM_RSTZ", 5, 27, 0, 0, 29, 0, 0, 0, 0)
330 MUX_CFG("Y15_1610_CAM_OUTCLK", A, 0, 6, 2, 6, 0, 2, 0, 0)
331 
332 /* serial camera */
333 MUX_CFG("H19_1610_CAM_EXCLK", 4, 21, 0, 0, 17, 0, 0, 0, 0)
334  /* REVISIT 5912 spec sez CCP_* can't pullup or pulldown ... ? */
335 MUX_CFG("Y12_1610_CCP_CLKP", 8, 18, 6, 1, 24, 1, 1, 0, 0)
336 MUX_CFG("W13_1610_CCP_CLKM", 9, 0, 6, 1, 28, 1, 1, 0, 0)
337 MUX_CFG("W14_1610_CCP_DATAP", 9, 24, 6, 2, 4, 1, 2, 0, 0)
338 MUX_CFG("Y14_1610_CCP_DATAM", 9, 21, 6, 2, 3, 1, 2, 0, 0)
339 };
340 #define OMAP1XXX_PINS_SZ ARRAY_SIZE(omap1xxx_pins)
341 #else
342 #define omap1xxx_pins NULL
343 #define OMAP1XXX_PINS_SZ 0
344 #endif /* CONFIG_ARCH_OMAP15XX || CONFIG_ARCH_OMAP16XX */
345 
346 static int __init_or_module omap1_cfg_reg(const struct pin_config *cfg)
347 {
348  static DEFINE_SPINLOCK(mux_spin_lock);
349  unsigned long flags;
350  unsigned int reg_orig = 0, reg = 0, pu_pd_orig = 0, pu_pd = 0,
351  pull_orig = 0, pull = 0;
352  unsigned int mask, warn = 0;
353 
354  /* Check the mux register in question */
355  if (cfg->mux_reg) {
356  unsigned tmp1, tmp2;
357 
358  spin_lock_irqsave(&mux_spin_lock, flags);
359  reg_orig = omap_readl(cfg->mux_reg);
360 
361  /* The mux registers always seem to be 3 bits long */
362  mask = (0x7 << cfg->mask_offset);
363  tmp1 = reg_orig & mask;
364  reg = reg_orig & ~mask;
365 
366  tmp2 = (cfg->mask << cfg->mask_offset);
367  reg |= tmp2;
368 
369  if (tmp1 != tmp2)
370  warn = 1;
371 
372  omap_writel(reg, cfg->mux_reg);
373  spin_unlock_irqrestore(&mux_spin_lock, flags);
374  }
375 
376  /* Check for pull up or pull down selection on 1610 */
377  if (!cpu_is_omap15xx()) {
378  if (cfg->pu_pd_reg && cfg->pull_val) {
379  spin_lock_irqsave(&mux_spin_lock, flags);
380  pu_pd_orig = omap_readl(cfg->pu_pd_reg);
381  mask = 1 << cfg->pull_bit;
382 
383  if (cfg->pu_pd_val) {
384  if (!(pu_pd_orig & mask))
385  warn = 1;
386  /* Use pull up */
387  pu_pd = pu_pd_orig | mask;
388  } else {
389  if (pu_pd_orig & mask)
390  warn = 1;
391  /* Use pull down */
392  pu_pd = pu_pd_orig & ~mask;
393  }
394  omap_writel(pu_pd, cfg->pu_pd_reg);
395  spin_unlock_irqrestore(&mux_spin_lock, flags);
396  }
397  }
398 
399  /* Check for an associated pull down register */
400  if (cfg->pull_reg) {
401  spin_lock_irqsave(&mux_spin_lock, flags);
402  pull_orig = omap_readl(cfg->pull_reg);
403  mask = 1 << cfg->pull_bit;
404 
405  if (cfg->pull_val) {
406  if (pull_orig & mask)
407  warn = 1;
408  /* Low bit = pull enabled */
409  pull = pull_orig & ~mask;
410  } else {
411  if (!(pull_orig & mask))
412  warn = 1;
413  /* High bit = pull disabled */
414  pull = pull_orig | mask;
415  }
416 
417  omap_writel(pull, cfg->pull_reg);
418  spin_unlock_irqrestore(&mux_spin_lock, flags);
419  }
420 
421  if (warn) {
422 #ifdef CONFIG_OMAP_MUX_WARNINGS
423  printk(KERN_WARNING "MUX: initialized %s\n", cfg->name);
424 #endif
425  }
426 
427 #ifdef CONFIG_OMAP_MUX_DEBUG
428  if (cfg->debug || warn) {
429  printk("MUX: Setting register %s\n", cfg->name);
430  printk(" %s (0x%08x) = 0x%08x -> 0x%08x\n",
431  cfg->mux_reg_name, cfg->mux_reg, reg_orig, reg);
432 
433  if (!cpu_is_omap15xx()) {
434  if (cfg->pu_pd_reg && cfg->pull_val) {
435  printk(" %s (0x%08x) = 0x%08x -> 0x%08x\n",
436  cfg->pu_pd_name, cfg->pu_pd_reg,
437  pu_pd_orig, pu_pd);
438  }
439  }
440 
441  if (cfg->pull_reg)
442  printk(" %s (0x%08x) = 0x%08x -> 0x%08x\n",
443  cfg->pull_name, cfg->pull_reg, pull_orig, pull);
444  }
445 #endif
446 
447 #ifdef CONFIG_OMAP_MUX_WARNINGS
448  return warn ? -ETXTBSY : 0;
449 #else
450  return 0;
451 #endif
452 }
453 
454 static struct omap_mux_cfg *mux_cfg;
455 
456 int __init omap_mux_register(struct omap_mux_cfg *arch_mux_cfg)
457 {
458  if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0
459  || !arch_mux_cfg->cfg_reg) {
460  printk(KERN_ERR "Invalid pin table\n");
461  return -EINVAL;
462  }
463 
464  mux_cfg = arch_mux_cfg;
465 
466  return 0;
467 }
468 
469 /*
470  * Sets the Omap MUX and PULL_DWN registers based on the table
471  */
472 int __init_or_module omap_cfg_reg(const unsigned long index)
473 {
474  struct pin_config *reg;
475 
476  if (!cpu_class_is_omap1()) {
477  printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
478  index);
479  WARN_ON(1);
480  return -EINVAL;
481  }
482 
483  if (mux_cfg == NULL) {
484  printk(KERN_ERR "Pin mux table not initialized\n");
485  return -ENODEV;
486  }
487 
488  if (index >= mux_cfg->size) {
489  printk(KERN_ERR "Invalid pin mux index: %lu (%lu)\n",
490  index, mux_cfg->size);
491  dump_stack();
492  return -ENODEV;
493  }
494 
495  reg = &mux_cfg->pins[index];
496 
497  if (!mux_cfg->cfg_reg)
498  return -ENODEV;
499 
500  return mux_cfg->cfg_reg(reg);
501 }
502 EXPORT_SYMBOL(omap_cfg_reg);
503 
504 int __init omap1_mux_init(void)
505 {
506  if (cpu_is_omap7xx()) {
507  arch_mux_cfg.pins = omap7xx_pins;
508  arch_mux_cfg.size = OMAP7XX_PINS_SZ;
509  arch_mux_cfg.cfg_reg = omap1_cfg_reg;
510  }
511 
512  if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
513  arch_mux_cfg.pins = omap1xxx_pins;
514  arch_mux_cfg.size = OMAP1XXX_PINS_SZ;
515  arch_mux_cfg.cfg_reg = omap1_cfg_reg;
516  }
517 
518  return omap_mux_register(&arch_mux_cfg);
519 }
520 
521 #else
522 #define omap_mux_init() do {} while(0)
523 #define omap_cfg_reg(x) do {} while(0)
524 #endif /* CONFIG_OMAP_MUX */
525 
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