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gerrit.cesnet.cz / github / trini / u-boot / c2fd3f57040d4d8e858f0449afe46416cfad95da / . / board / micronas / vct / top.c
blob: 4e8e410abb98a2f6c415ed60a9edafbfcc9e00c6 [file] [log] [blame]
Stefan Roeseae691e52009-01-21 17:24:49 +0100[diff] [blame]1/*
2 * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
3 *
4 * Copyright (C) 2006 Micronas GmbH
5 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]6 * SPDX-License-Identifier: GPL-2.0+
Stefan Roeseae691e52009-01-21 17:24:49 +0100[diff] [blame]7 */
8
9#include <common.h>
10#include "vct.h"
11
12typedef union _TOP_PINMUX_t
13{
14 u32 reg;
15 struct {
16 u32 res : 24; /* reserved */
17 u32 drive : 2; /* Driver strength */
18 u32 slew : 1; /* Slew rate */
19 u32 strig : 1; /* Schmitt trigger input*/
20 u32 pu_pd : 2; /* Pull up/ pull down */
21 u32 funsel : 2; /* Pin function */
22 } Bits;
23} TOP_PINMUX_t;
24
25#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
26
27static TOP_PINMUX_t top_read_pin(int pin)
28{
29 TOP_PINMUX_t reg;
30
31 switch (pin) {
32 case 2:
33 case 3:
34 case 6:
35 case 9:
36 reg.reg = 0xdeadbeef;
37 break;
38 case 4:
39 reg.reg = reg_read(FWSRAM_TOP_SCL_CFG(FWSRAM_BASE));
40 break;
41 case 5:
42 reg.reg = reg_read(FWSRAM_TOP_SDA_CFG(FWSRAM_BASE));
43 break;
44 case 7:
45 reg.reg = reg_read(FWSRAM_TOP_TDO_CFG(FWSRAM_BASE));
46 break;
47 case 8:
48 reg.reg = reg_read(FWSRAM_TOP_GPIO2_0_CFG(FWSRAM_BASE));
49 break;
50 case 10:
51 case 11:
52 case 12:
53 case 13:
54 case 14:
55 case 15:
56 case 16:
57 reg.reg = reg_read(FWSRAM_BASE + FWSRAM_TOP_GPIO2_1_CFG_OFFS +
58 ((pin - 10) * 4));
59 break;
60 default:
61 reg.reg = reg_read(TOP_BASE + (pin * 4));
62 break;
63 }
64
65 return reg;
66}
67
68static void top_write_pin(int pin, TOP_PINMUX_t reg)
69{
70
71 switch (pin) {
72 case 4:
73 reg_write(FWSRAM_TOP_SCL_CFG(FWSRAM_BASE), reg.reg);
74 break;
75 case 5:
76 reg_write(FWSRAM_TOP_SDA_CFG(FWSRAM_BASE), reg.reg);
77 break;
78 case 7:
79 reg_write(FWSRAM_TOP_TDO_CFG(FWSRAM_BASE), reg.reg);
80 break;
81 case 8:
82 reg_write(FWSRAM_TOP_GPIO2_0_CFG(FWSRAM_BASE), reg.reg);
83 break;
84 case 10:
85 case 11:
86 case 12:
87 case 13:
88 case 14:
89 case 15:
90 case 16:
91 reg_write(FWSRAM_BASE + FWSRAM_TOP_GPIO2_1_CFG_OFFS +
92 ((pin - 10) * 4), reg.reg);
93 break;
94 default:
95 reg_write(TOP_BASE + (pin * 4), reg.reg);
96 break;
97 }
98}
99
100int top_set_pin(int pin, int func)
101{
102 TOP_PINMUX_t reg;
103
104 /* check global range */
105 if ((pin < 0) || (pin > 170) || (func < 0) || (func > 3))
106 return -1; /* pin number or function out of valid range */
107
108 /* check undefined values; */
109 if ((pin == 2) || (pin == 3) || (pin == 6) || (pin == 9))
110 return -1; /* pin number out of valid range */
111
112 reg = top_read_pin(pin);
113 reg.Bits.funsel = func;
114 top_write_pin(pin, reg);
115
116 return 0;
117}
118
119#endif
120
121#if defined(CONFIG_VCT_PLATINUMAVC)
122
123int top_set_pin(int pin, int func)
124{
125 TOP_PINMUX_t reg;
126
127 /* check global range */
128 if ((pin < 0) || (pin > 158))
129 return -1; /* pin number or function out of valid range */
130
131 reg.reg = reg_read(TOP_BASE + (pin * 4));
132 reg.Bits.funsel = func;
133 reg_write(TOP_BASE + (pin * 4), reg.reg);
134
135 return 0;
136}
137
138#endif
139
140void vct_pin_mux_initialize(void)
141{
142#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
143 top_set_pin(34, 01); /* EBI_CS0 */
144 top_set_pin(33, 01); /* EBI_CS1 */
145 top_set_pin(32, 01); /* EBI_CS2 */
146 top_set_pin(100, 02); /* EBI_CS3 */
147 top_set_pin(101, 02); /* EBI_CS4 */
148 top_set_pin(102, 02); /* EBI_CS5 */
149 top_set_pin(103, 02); /* EBI_CS6 */
150 top_set_pin(104, 02); /* EBI_CS7 top_set_pin(104,03); EBI_GENIO3 */
151 top_set_pin(35, 01); /* EBI_ALE */
152 top_set_pin(36, 01); /* EBI_ADDR15 */
153 top_set_pin(37, 01); /* EBI_ADDR14 top_set_pin(78,03); EBI_ADDR14 */
154 top_set_pin(38, 01); /* EBI_ADDR13 */
155 top_set_pin(39, 01); /* EBI_ADDR12 */
156 top_set_pin(40, 01); /* EBI_ADDR11 */
157 top_set_pin(41, 01); /* EBI_ADDR10 */
158 top_set_pin(42, 01); /* EBI_ADDR9 */
159 top_set_pin(43, 01); /* EBI_ADDR8 */
160 top_set_pin(44, 01); /* EBI_ADDR7 */
161 top_set_pin(45, 01); /* EBI_ADDR6 */
162 top_set_pin(46, 01); /* EBI_ADDR5 */
163 top_set_pin(47, 01); /* EBI_ADDR4 */
164 top_set_pin(48, 01); /* EBI_ADDR3 */
165 top_set_pin(49, 01); /* EBI_ADDR2 */
166 top_set_pin(50, 01); /* EBI_ADDR1 */
167 top_set_pin(51, 01); /* EBI_ADDR0 */
168 top_set_pin(52, 01); /* EBI_DIR */
169 top_set_pin(53, 01); /* EBI_DAT15 top_set_pin(81,01); EBI_DAT15 */
170 top_set_pin(54, 01); /* EBI_DAT14 top_set_pin(82,01); EBI_DAT14 */
171 top_set_pin(55, 01); /* EBI_DAT13 top_set_pin(83,01); EBI_DAT13 */
172 top_set_pin(56, 01); /* EBI_DAT12 top_set_pin(84,01); EBI_DAT12 */
173 top_set_pin(57, 01); /* EBI_DAT11 top_set_pin(85,01); EBI_DAT11 */
174 top_set_pin(58, 01); /* EBI_DAT10 top_set_pin(86,01); EBI_DAT10 */
175 top_set_pin(59, 01); /* EBI_DAT9 top_set_pin(87,01); EBI_DAT9 */
176 top_set_pin(60, 01); /* EBI_DAT8 top_set_pin(88,01); EBI_DAT8 */
177 top_set_pin(61, 01); /* EBI_DAT7 */
178 top_set_pin(62, 01); /* EBI_DAT6 */
179 top_set_pin(63, 01); /* EBI_DAT5 */
180 top_set_pin(64, 01); /* EBI_DAT4 */
181 top_set_pin(65, 01); /* EBI_DAT3 */
182 top_set_pin(66, 01); /* EBI_DAT2 */
183 top_set_pin(67, 01); /* EBI_DAT1 */
184 top_set_pin(68, 01); /* EBI_DAT0 */
185 top_set_pin(69, 01); /* EBI_IORD */
186 top_set_pin(70, 01); /* EBI_IOWR */
187 top_set_pin(71, 01); /* EBI_WE */
188 top_set_pin(72, 01); /* EBI_OE */
189 top_set_pin(73, 01); /* EBI_IORDY */
190 top_set_pin(95, 02); /* EBI_EBI_DMACK*/
191 top_set_pin(112, 02); /* EBI_IRQ0 */
192 top_set_pin(111, 02); /* EBI_IRQ1 top_set_pin(111,03); EBI_DMARQ */
193 top_set_pin(107, 02); /* EBI_IRQ2 */
194 top_set_pin(108, 02); /* EBI_IRQ3 */
195 top_set_pin(30, 01); /* EBI_GENIO1 top_set_pin(99,03); EBI_GENIO1 */
196 top_set_pin(31, 01); /* EBI_GENIO2 top_set_pin(98,03); EBI_GENIO2 */
197 top_set_pin(105, 02); /* EBI_GENIO3 top_set_pin(104,03); EBI_GENIO3 */
198 top_set_pin(106, 02); /* EBI_GENIO4 top_set_pin(144,02); EBI_GENIO4 */
199 top_set_pin(109, 02); /* EBI_GENIO5 top_set_pin(142,02); EBI_GENIO5 */
200 top_set_pin(110, 02); /* EBI_BURST_CLK */
201#endif
202
203#if defined(CONFIG_VCT_PLATINUMAVC)
204 top_set_pin(19, 01); /* EBI_CS0 */
205 top_set_pin(18, 01); /* EBI_CS1 */
206 top_set_pin(17, 01); /* EBI_CS2 */
207 top_set_pin(92, 02); /* EBI_CS3 */
208 top_set_pin(93, 02); /* EBI_CS4 */
209 top_set_pin(95, 02); /* EBI_CS6 */
210 top_set_pin(96, 02); /* EBI_CS7 top_set_pin(104,03); EBI_GENIO3 */
211 top_set_pin(20, 01); /* EBI_ALE */
212 top_set_pin(21, 01); /* EBI_ADDR15 */
213 top_set_pin(22, 01); /* EBI_ADDR14 top_set_pin(78,03); EBI_ADDR14 */
214 top_set_pin(23, 01); /* EBI_ADDR13 */
215 top_set_pin(24, 01); /* EBI_ADDR12 */
216 top_set_pin(25, 01); /* EBI_ADDR11 */
217 top_set_pin(26, 01); /* EBI_ADDR10 */
218 top_set_pin(27, 01); /* EBI_ADDR9 */
219 top_set_pin(28, 01); /* EBI_ADDR8 */
220 top_set_pin(29, 01); /* EBI_ADDR7 */
221 top_set_pin(30, 01); /* EBI_ADDR6 */
222 top_set_pin(31, 01); /* EBI_ADDR5 */
223 top_set_pin(32, 01); /* EBI_ADDR4 */
224 top_set_pin(33, 01); /* EBI_ADDR3 */
225 top_set_pin(34, 01); /* EBI_ADDR2 */
226 top_set_pin(35, 01); /* EBI_ADDR1 */
227 top_set_pin(36, 01); /* EBI_ADDR0 */
228 top_set_pin(37, 01); /* EBI_DIR */
229 top_set_pin(38, 01); /* EBI_DAT15 top_set_pin(81,01); EBI_DAT15 */
230 top_set_pin(39, 01); /* EBI_DAT14 top_set_pin(82,01); EBI_DAT14 */
231 top_set_pin(40, 01); /* EBI_DAT13 top_set_pin(83,01); EBI_DAT13 */
232 top_set_pin(41, 01); /* EBI_DAT12 top_set_pin(84,01); EBI_DAT12 */
233 top_set_pin(42, 01); /* EBI_DAT11 top_set_pin(85,01); EBI_DAT11 */
234 top_set_pin(43, 01); /* EBI_DAT10 top_set_pin(86,01); EBI_DAT10 */
235 top_set_pin(44, 01); /* EBI_DAT9 top_set_pin(87,01); EBI_DAT9 */
236 top_set_pin(45, 01); /* EBI_DAT8 top_set_pin(88,01); EBI_DAT8 */
237 top_set_pin(46, 01); /* EBI_DAT7 */
238 top_set_pin(47, 01); /* EBI_DAT6 */
239 top_set_pin(48, 01); /* EBI_DAT5 */
240 top_set_pin(49, 01); /* EBI_DAT4 */
241 top_set_pin(50, 01); /* EBI_DAT3 */
242 top_set_pin(51, 01); /* EBI_DAT2 */
243 top_set_pin(52, 01); /* EBI_DAT1 */
244 top_set_pin(53, 01); /* EBI_DAT0 */
245 top_set_pin(54, 01); /* EBI_IORD */
246 top_set_pin(55, 01); /* EBI_IOWR */
247 top_set_pin(56, 01); /* EBI_WE */
248 top_set_pin(57, 01); /* EBI_OE */
249 top_set_pin(58, 01); /* EBI_IORDY */
250 top_set_pin(87, 02); /* EBI_EBI_DMACK*/
251 top_set_pin(106, 02); /* EBI_IRQ0 */
252 top_set_pin(105, 02); /* EBI_IRQ1 top_set_pin(111,03); EBI_DMARQ */
253 top_set_pin(101, 02); /* EBI_IRQ2 */
254 top_set_pin(102, 02); /* EBI_IRQ3 */
255 top_set_pin(15, 01); /* EBI_GENIO1 top_set_pin(99,03); EBI_GENIO1 */
256 top_set_pin(16, 01); /* EBI_GENIO2 top_set_pin(98,03); EBI_GENIO2 */
257 top_set_pin(99, 02); /* EBI_GENIO3 top_set_pin(104,03); EBI_GENIO3 */
258 top_set_pin(100, 02); /* EBI_GENIO4 top_set_pin(144,02); EBI_GENIO4 */
259 top_set_pin(103, 02); /* EBI_GENIO5 top_set_pin(142,02); EBI_GENIO5 */
260 top_set_pin(104, 02); /* EBI_BURST_CLK */
261#endif
262
263 /* I2C: Configure I2C-2 as GPIO to enable soft-i2c */
264 top_set_pin(0, 2); /* SCL2 on GPIO 11 */
265 top_set_pin(1, 2); /* SDA2 on GPIO 10 */
266
267 /* UART pins */
268#if defined(CONFIG_VCT_PREMIUM) || defined(CONFIG_VCT_PLATINUM)
269 top_set_pin(141, 1);
270 top_set_pin(143, 1);
271#endif
272#if defined(CONFIG_VCT_PLATINUMAVC)
273 top_set_pin(107, 1);
274 top_set_pin(109, 1);
275#endif
276}