1 /*
2 * arch/arm/mach-pnx4008/include/mach/gpio.h
3 *
4 * PNX4008 GPIO driver - header file
5 *
6 * Author: Dmitry Chigirev <source@mvista.com>
7 *
8 * Based on reference code by Iwo Mergler and Z.Tabaaloute from Philips:
9 * Copyright (c) 2005 Koninklijke Philips Electronics N.V.
10 *
11 * 2005 (c) MontaVista Software, Inc. This file is licensed under
12 * the terms of the GNU General Public License version 2. This program
13 * is licensed "as is" without any warranty of any kind, whether express
14 * or implied.
15 */
16
17 #ifndef _PNX4008_GPIO_H_
18 #define _PNX4008_GPIO_H_
19
20
21 /* Block numbers */
22 #define GPIO_IN (0)
23 #define GPIO_OUT (0x100)
24 #define GPIO_BID (0x200)
25 #define GPIO_RAM (0x300)
26 #define GPIO_MUX (0x400)
27
28 #define GPIO_TYPE_MASK(K) ((K) & 0x700)
29
30 /* INPUT GPIOs */
31 /* GPI */
32 #define GPI_00 (GPIO_IN | 0)
33 #define GPI_01 (GPIO_IN | 1)
34 #define GPI_02 (GPIO_IN | 2)
35 #define GPI_03 (GPIO_IN | 3)
36 #define GPI_04 (GPIO_IN | 4)
37 #define GPI_05 (GPIO_IN | 5)
38 #define GPI_06 (GPIO_IN | 6)
39 #define GPI_07 (GPIO_IN | 7)
40 #define GPI_08 (GPIO_IN | 8)
41 #define GPI_09 (GPIO_IN | 9)
42 #define U1_RX (GPIO_IN | 15)
43 #define U2_HTCS (GPIO_IN | 16)
44 #define U2_RX (GPIO_IN | 17)
45 #define U3_RX (GPIO_IN | 18)
46 #define U4_RX (GPIO_IN | 19)
47 #define U5_RX (GPIO_IN | 20)
48 #define U6_IRRX (GPIO_IN | 21)
49 #define U7_HCTS (GPIO_IN | 22)
50 #define U7_RX (GPIO_IN | 23)
51 /* MISC IN */
52 #define SPI1_DATIN (GPIO_IN | 25)
53 #define DISP_SYNC (GPIO_IN | 26)
54 #define SPI2_DATIN (GPIO_IN | 27)
55 #define GPI_11 (GPIO_IN | 28)
56
57 #define GPIO_IN_MASK 0x1eff83ff
58
59 /* OUTPUT GPIOs */
60 /* GPO */
61 #define GPO_00 (GPIO_OUT | 0)
62 #define GPO_01 (GPIO_OUT | 1)
63 #define GPO_02 (GPIO_OUT | 2)
64 #define GPO_03 (GPIO_OUT | 3)
65 #define GPO_04 (GPIO_OUT | 4)
66 #define GPO_05 (GPIO_OUT | 5)
67 #define GPO_06 (GPIO_OUT | 6)
68 #define GPO_07 (GPIO_OUT | 7)
69 #define GPO_08 (GPIO_OUT | 8)
70 #define GPO_09 (GPIO_OUT | 9)
71 #define GPO_10 (GPIO_OUT | 10)
72 #define GPO_11 (GPIO_OUT | 11)
73 #define GPO_12 (GPIO_OUT | 12)
74 #define GPO_13 (GPIO_OUT | 13)
75 #define GPO_14 (GPIO_OUT | 14)
76 #define GPO_15 (GPIO_OUT | 15)
77 #define GPO_16 (GPIO_OUT | 16)
78 #define GPO_17 (GPIO_OUT | 17)
79 #define GPO_18 (GPIO_OUT | 18)
80 #define GPO_19 (GPIO_OUT | 19)
81 #define GPO_20 (GPIO_OUT | 20)
82 #define GPO_21 (GPIO_OUT | 21)
83 #define GPO_22 (GPIO_OUT | 22)
84 #define GPO_23 (GPIO_OUT | 23)
85
86 #define GPIO_OUT_MASK 0xffffff
87
88 /* BIDIRECTIONAL GPIOs */
89 /* RAM pins */
90 #define RAM_D19 (GPIO_RAM | 0)
91 #define RAM_D20 (GPIO_RAM | 1)
92 #define RAM_D21 (GPIO_RAM | 2)
93 #define RAM_D22 (GPIO_RAM | 3)
94 #define RAM_D23 (GPIO_RAM | 4)
95 #define RAM_D24 (GPIO_RAM | 5)
96 #define RAM_D25 (GPIO_RAM | 6)
97 #define RAM_D26 (GPIO_RAM | 7)
98 #define RAM_D27 (GPIO_RAM | 8)
99 #define RAM_D28 (GPIO_RAM | 9)
100 #define RAM_D29 (GPIO_RAM | 10)
101 #define RAM_D30 (GPIO_RAM | 11)
102 #define RAM_D31 (GPIO_RAM | 12)
103
104 #define GPIO_RAM_MASK 0x1fff
105
106 /* I/O pins */
107 #define GPIO_00 (GPIO_BID | 25)
108 #define GPIO_01 (GPIO_BID | 26)
109 #define GPIO_02 (GPIO_BID | 27)
110 #define GPIO_03 (GPIO_BID | 28)
111 #define GPIO_04 (GPIO_BID | 29)
112 #define GPIO_05 (GPIO_BID | 30)
113
114 #define GPIO_BID_MASK 0x7e000000
115
116 /* Non-GPIO multiplexed PIOs. For multiplexing with GPIO, please use GPIO macros */
117 #define GPIO_SDRAM_SEL (GPIO_MUX | 3)
118
119 #define GPIO_MUX_MASK 0x8
120
121 /* Extraction/assembly macros */
122 #define GPIO_BIT_MASK(K) ((K) & 0x1F)
123 #define GPIO_BIT(K) (1 << GPIO_BIT_MASK(K))
124 #define GPIO_ISMUX(K) ((GPIO_TYPE_MASK(K) == GPIO_MUX) && (GPIO_BIT(K) & GPIO_MUX_MASK))
125 #define GPIO_ISRAM(K) ((GPIO_TYPE_MASK(K) == GPIO_RAM) && (GPIO_BIT(K) & GPIO_RAM_MASK))
126 #define GPIO_ISBID(K) ((GPIO_TYPE_MASK(K) == GPIO_BID) && (GPIO_BIT(K) & GPIO_BID_MASK))
127 #define GPIO_ISOUT(K) ((GPIO_TYPE_MASK(K) == GPIO_OUT) && (GPIO_BIT(K) & GPIO_OUT_MASK))
128 #define GPIO_ISIN(K) ((GPIO_TYPE_MASK(K) == GPIO_IN) && (GPIO_BIT(K) & GPIO_IN_MASK))
129
130 /* Start Enable Pin Interrupts - table 58 page 66 */
131
132 #define SE_PIN_BASE_INT 32
133
134 #define SE_U7_RX_INT 63
135 #define SE_U7_HCTS_INT 62
136 #define SE_BT_CLKREQ_INT 61
137 #define SE_U6_IRRX_INT 60
138 /*59 unused*/
139 #define SE_U5_RX_INT 58
140 #define SE_GPI_11_INT 57
141 #define SE_U3_RX_INT 56
142 #define SE_U2_HCTS_INT 55
143 #define SE_U2_RX_INT 54
144 #define SE_U1_RX_INT 53
145 #define SE_DISP_SYNC_INT 52
146 /*51 unused*/
147 #define SE_SDIO_INT_N 50
148 #define SE_MSDIO_START_INT 49
149 #define SE_GPI_06_INT 48
150 #define SE_GPI_05_INT 47
151 #define SE_GPI_04_INT 46
152 #define SE_GPI_03_INT 45
153 #define SE_GPI_02_INT 44
154 #define SE_GPI_01_INT 43
155 #define SE_GPI_00_INT 42
156 #define SE_SYSCLKEN_PIN_INT 41
157 #define SE_SPI1_DATAIN_INT 40
158 #define SE_GPI_07_INT 39
159 #define SE_SPI2_DATAIN_INT 38
160 #define SE_GPI_10_INT 37
161 #define SE_GPI_09_INT 36
162 #define SE_GPI_08_INT 35
163 /*34-32 unused*/
164
165 /* Start Enable Internal Interrupts - table 57 page 65 */
166
167 #define SE_INT_BASE_INT 0
168
169 #define SE_TS_IRQ 31
170 #define SE_TS_P_INT 30
171 #define SE_TS_AUX_INT 29
172 /*27-28 unused*/
173 #define SE_USB_AHB_NEED_CLK_INT 26
174 #define SE_MSTIMER_INT 25
175 #define SE_RTC_INT 24
176 #define SE_USB_NEED_CLK_INT 23
177 #define SE_USB_INT 22
178 #define SE_USB_I2C_INT 21
179 #define SE_USB_OTG_TIMER_INT 20
180 #define SE_USB_OTG_ATX_INT_N 19
181 /*18 unused*/
182 #define SE_DSP_GPIO4_INT 17
183 #define SE_KEY_IRQ 16
184 #define SE_DSP_SLAVEPORT_INT 15
185 #define SE_DSP_GPIO1_INT 14
186 #define SE_DSP_GPIO0_INT 13
187 #define SE_DSP_AHB_INT 12
188 /*11-6 unused*/
189 #define SE_GPIO_05_INT 5
190 #define SE_GPIO_04_INT 4
191 #define SE_GPIO_03_INT 3
192 #define SE_GPIO_02_INT 2
193 #define SE_GPIO_01_INT 1
194 #define SE_GPIO_00_INT 0
195
196 #define START_INT_REG_BIT(irq) (1<<((irq)&0x1F))
197
198 #define START_INT_ER_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x20 + (((irq)&(0x1<<5))>>1)))
199 #define START_INT_RSR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x24 + (((irq)&(0x1<<5))>>1)))
200 #define START_INT_SR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x28 + (((irq)&(0x1<<5))>>1)))
201 #define START_INT_APR_REG(irq) IO_ADDRESS((PNX4008_PWRMAN_BASE + 0x2C + (((irq)&(0x1<<5))>>1)))
202
203 extern int pnx4008_gpio_register_pin(unsigned short pin);
204 extern int pnx4008_gpio_unregister_pin(unsigned short pin);
205 extern unsigned long pnx4008_gpio_read_pin(unsigned short pin);
206 extern int pnx4008_gpio_write_pin(unsigned short pin, int output);
207 extern int pnx4008_gpio_set_pin_direction(unsigned short pin, int output);
208 extern int pnx4008_gpio_read_pin_direction(unsigned short pin);
209 extern int pnx4008_gpio_set_pin_mux(unsigned short pin, int output);
210 extern int pnx4008_gpio_read_pin_mux(unsigned short pin);
211
start_int_umask(u8 irq)212 static inline void start_int_umask(u8 irq)
213 {
214 __raw_writel(__raw_readl(START_INT_ER_REG(irq)) |
215 START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
216 }
217
start_int_mask(u8 irq)218 static inline void start_int_mask(u8 irq)
219 {
220 __raw_writel(__raw_readl(START_INT_ER_REG(irq)) &
221 ~START_INT_REG_BIT(irq), START_INT_ER_REG(irq));
222 }
223
start_int_ack(u8 irq)224 static inline void start_int_ack(u8 irq)
225 {
226 __raw_writel(START_INT_REG_BIT(irq), START_INT_RSR_REG(irq));
227 }
228
start_int_set_falling_edge(u8 irq)229 static inline void start_int_set_falling_edge(u8 irq)
230 {
231 __raw_writel(__raw_readl(START_INT_APR_REG(irq)) &
232 ~START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
233 }
234
start_int_set_rising_edge(u8 irq)235 static inline void start_int_set_rising_edge(u8 irq)
236 {
237 __raw_writel(__raw_readl(START_INT_APR_REG(irq)) |
238 START_INT_REG_BIT(irq), START_INT_APR_REG(irq));
239 }
240
241 #endif /* _PNX4008_GPIO_H_ */
242