blob: 02837082cb807fad040f8c4007c7bb7d218cdbfc [file] [log] [blame]
Chandan Nath5289e832011-10-14 02:58:26 +00001/*
2 * mux.c
3 *
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2.
9 *
10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11 * kind, whether express or implied; without even the implied warranty
12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
Tom Rinidb7dd812012-07-31 10:50:01 -070016#include <common.h>
17#include <asm/arch/sys_proto.h>
Chandan Nath5289e832011-10-14 02:58:26 +000018#include <asm/arch/hardware.h>
Peter Korsgaard7f26a5a2012-10-18 01:21:11 +000019#include <asm/arch/mux.h>
Chandan Nath5289e832011-10-14 02:58:26 +000020#include <asm/io.h>
Tom Rini036fd652012-08-08 09:03:07 -070021#include <i2c.h>
Peter Korsgaarde3634262012-10-18 01:21:09 +000022#include "board.h"
Chandan Nath5289e832011-10-14 02:58:26 +000023
Chandan Nath5289e832011-10-14 02:58:26 +000024static struct module_pin_mux uart0_pin_mux[] = {
25 {OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART0_RXD */
26 {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */
27 {-1},
28};
29
Andrew Bradford6422b702012-10-25 08:21:30 -040030static struct module_pin_mux uart1_pin_mux[] = {
31 {OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART1_RXD */
32 {OFFSET(uart1_txd), (MODE(0) | PULLUDEN)}, /* UART1_TXD */
33 {-1},
34};
35
36static struct module_pin_mux uart2_pin_mux[] = {
37 {OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART2_RXD */
38 {OFFSET(spi0_d0), (MODE(1) | PULLUDEN)}, /* UART2_TXD */
39 {-1},
40};
41
42static struct module_pin_mux uart3_pin_mux[] = {
43 {OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART3_RXD */
44 {OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)}, /* UART3_TXD */
45 {-1},
46};
47
48static struct module_pin_mux uart4_pin_mux[] = {
49 {OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)}, /* UART4_RXD */
50 {OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)}, /* UART4_TXD */
51 {-1},
52};
53
54static struct module_pin_mux uart5_pin_mux[] = {
55 {OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)}, /* UART5_RXD */
56 {OFFSET(lcd_data8), (MODE(4) | PULLUDEN)}, /* UART5_TXD */
57 {-1},
58};
59
Chandan Nath876bdd62012-01-09 20:38:58 +000060static struct module_pin_mux mmc0_pin_mux[] = {
61 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
62 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
63 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
64 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
65 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
66 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
67 {OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
68 {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
69 {-1},
70};
Tom Rinidb7dd812012-07-31 10:50:01 -070071
Matthias Fuchsa956bdc2012-11-02 03:35:59 +000072static struct module_pin_mux mmc0_no_cd_pin_mux[] = {
73 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
74 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
75 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
76 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
77 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
78 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
79 {OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
80 {-1},
81};
82
Tom Rinidb7dd812012-07-31 10:50:01 -070083static struct module_pin_mux mmc0_pin_mux_sk_evm[] = {
84 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
85 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
86 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
87 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
88 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
89 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
90 {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
91 {-1},
92};
Chandan Nath876bdd62012-01-09 20:38:58 +000093
Tom Rini6bfca502012-08-08 10:32:09 -070094static struct module_pin_mux mmc1_pin_mux[] = {
95 {OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
96 {OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
97 {OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
98 {OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
99 {OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */
100 {OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
101 {OFFSET(gpmc_csn0), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_WP */
102 {OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_CD */
103 {-1},
104};
105
Patil, Rachnab4116ed2012-01-22 23:47:01 +0000106static struct module_pin_mux i2c0_pin_mux[] = {
107 {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
108 PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
109 {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE |
110 PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
111 {-1},
112};
113
Steve Sakomand3decde2012-06-22 07:45:57 +0000114static struct module_pin_mux i2c1_pin_mux[] = {
115 {OFFSET(spi0_d1), (MODE(2) | RXACTIVE |
116 PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
117 {OFFSET(spi0_cs0), (MODE(2) | RXACTIVE |
118 PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
119 {-1},
120};
121
Tom Rinia4a99ff2012-08-08 14:35:55 -0700122static struct module_pin_mux spi0_pin_mux[] = {
123 {OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */
124 {OFFSET(spi0_d0), (MODE(0) | RXACTIVE |
125 PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */
126 {OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */
127 {OFFSET(spi0_cs0), (MODE(0) | RXACTIVE |
128 PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */
129 {-1},
130};
131
Tom Rini65d750b2012-07-31 08:55:01 -0700132static struct module_pin_mux gpio0_7_pin_mux[] = {
133 {OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */
134 {-1},
135};
136
Chandan Nath89017e12012-07-24 12:22:18 +0000137static struct module_pin_mux rgmii1_pin_mux[] = {
138 {OFFSET(mii1_txen), MODE(2)}, /* RGMII1_TCTL */
139 {OFFSET(mii1_rxdv), MODE(2) | RXACTIVE}, /* RGMII1_RCTL */
140 {OFFSET(mii1_txd3), MODE(2)}, /* RGMII1_TD3 */
141 {OFFSET(mii1_txd2), MODE(2)}, /* RGMII1_TD2 */
142 {OFFSET(mii1_txd1), MODE(2)}, /* RGMII1_TD1 */
143 {OFFSET(mii1_txd0), MODE(2)}, /* RGMII1_TD0 */
144 {OFFSET(mii1_txclk), MODE(2)}, /* RGMII1_TCLK */
145 {OFFSET(mii1_rxclk), MODE(2) | RXACTIVE}, /* RGMII1_RCLK */
146 {OFFSET(mii1_rxd3), MODE(2) | RXACTIVE}, /* RGMII1_RD3 */
147 {OFFSET(mii1_rxd2), MODE(2) | RXACTIVE}, /* RGMII1_RD2 */
148 {OFFSET(mii1_rxd1), MODE(2) | RXACTIVE}, /* RGMII1_RD1 */
149 {OFFSET(mii1_rxd0), MODE(2) | RXACTIVE}, /* RGMII1_RD0 */
150 {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN},/* MDIO_DATA */
151 {OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
152 {-1},
153};
154
155static struct module_pin_mux mii1_pin_mux[] = {
156 {OFFSET(mii1_rxerr), MODE(0) | RXACTIVE}, /* MII1_RXERR */
157 {OFFSET(mii1_txen), MODE(0)}, /* MII1_TXEN */
158 {OFFSET(mii1_rxdv), MODE(0) | RXACTIVE}, /* MII1_RXDV */
159 {OFFSET(mii1_txd3), MODE(0)}, /* MII1_TXD3 */
160 {OFFSET(mii1_txd2), MODE(0)}, /* MII1_TXD2 */
161 {OFFSET(mii1_txd1), MODE(0)}, /* MII1_TXD1 */
162 {OFFSET(mii1_txd0), MODE(0)}, /* MII1_TXD0 */
163 {OFFSET(mii1_txclk), MODE(0) | RXACTIVE}, /* MII1_TXCLK */
164 {OFFSET(mii1_rxclk), MODE(0) | RXACTIVE}, /* MII1_RXCLK */
165 {OFFSET(mii1_rxd3), MODE(0) | RXACTIVE}, /* MII1_RXD3 */
166 {OFFSET(mii1_rxd2), MODE(0) | RXACTIVE}, /* MII1_RXD2 */
167 {OFFSET(mii1_rxd1), MODE(0) | RXACTIVE}, /* MII1_RXD1 */
168 {OFFSET(mii1_rxd0), MODE(0) | RXACTIVE}, /* MII1_RXD0 */
169 {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
170 {OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
171 {-1},
172};
173
Ilya Yanok70fb65b2012-11-06 13:06:29 +0000174static struct module_pin_mux nand_pin_mux[] = {
175 {OFFSET(gpmc_ad0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD0 */
176 {OFFSET(gpmc_ad1), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD1 */
177 {OFFSET(gpmc_ad2), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD2 */
178 {OFFSET(gpmc_ad3), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD3 */
179 {OFFSET(gpmc_ad4), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD4 */
180 {OFFSET(gpmc_ad5), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD5 */
181 {OFFSET(gpmc_ad6), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD6 */
182 {OFFSET(gpmc_ad7), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* NAND AD7 */
183 {OFFSET(gpmc_wait0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* NAND WAIT */
184 {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN | RXACTIVE)}, /* NAND_WPN */
185 {OFFSET(gpmc_csn0), (MODE(0) | PULLUDEN)}, /* NAND_CS0 */
186 {OFFSET(gpmc_advn_ale), (MODE(0) | PULLUDEN)}, /* NAND_ADV_ALE */
187 {OFFSET(gpmc_oen_ren), (MODE(0) | PULLUDEN)}, /* NAND_OE */
188 {OFFSET(gpmc_wen), (MODE(0) | PULLUDEN)}, /* NAND_WEN */
189 {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLUDEN)}, /* NAND_BE_CLE */
190 {-1},
191};
192
Chandan Nath5289e832011-10-14 02:58:26 +0000193void enable_uart0_pin_mux(void)
194{
195 configure_module_pin_mux(uart0_pin_mux);
196}
Chandan Nath876bdd62012-01-09 20:38:58 +0000197
Andrew Bradford6422b702012-10-25 08:21:30 -0400198void enable_uart1_pin_mux(void)
199{
200 configure_module_pin_mux(uart1_pin_mux);
201}
202
203void enable_uart2_pin_mux(void)
204{
205 configure_module_pin_mux(uart2_pin_mux);
206}
207
208void enable_uart3_pin_mux(void)
209{
210 configure_module_pin_mux(uart3_pin_mux);
211}
212
213void enable_uart4_pin_mux(void)
214{
215 configure_module_pin_mux(uart4_pin_mux);
216}
217
218void enable_uart5_pin_mux(void)
219{
220 configure_module_pin_mux(uart5_pin_mux);
221}
Patil, Rachnab4116ed2012-01-22 23:47:01 +0000222
223void enable_i2c0_pin_mux(void)
224{
225 configure_module_pin_mux(i2c0_pin_mux);
226}
Steve Sakomand3decde2012-06-22 07:45:57 +0000227
Tom Rini036fd652012-08-08 09:03:07 -0700228/*
229 * The AM335x GP EVM, if daughter card(s) are connected, can have 8
230 * different profiles. These profiles determine what peripherals are
231 * valid and need pinmux to be configured.
232 */
233#define PROFILE_NONE 0x0
234#define PROFILE_0 (1 << 0)
235#define PROFILE_1 (1 << 1)
236#define PROFILE_2 (1 << 2)
237#define PROFILE_3 (1 << 3)
238#define PROFILE_4 (1 << 4)
239#define PROFILE_5 (1 << 5)
240#define PROFILE_6 (1 << 6)
241#define PROFILE_7 (1 << 7)
242#define PROFILE_MASK 0x7
243#define PROFILE_ALL 0xFF
244
245/* CPLD registers */
246#define I2C_CPLD_ADDR 0x35
247#define CFG_REG 0x10
248
249static unsigned short detect_daughter_board_profile(void)
250{
251 unsigned short val;
252
253 if (i2c_probe(I2C_CPLD_ADDR))
254 return PROFILE_NONE;
255
256 if (i2c_read(I2C_CPLD_ADDR, CFG_REG, 1, (unsigned char *)(&val), 2))
257 return PROFILE_NONE;
258
259 return (1 << (val & PROFILE_MASK));
260}
261
Tom Rinidb7dd812012-07-31 10:50:01 -0700262void enable_board_pin_mux(struct am335x_baseboard_id *header)
Steve Sakomand3decde2012-06-22 07:45:57 +0000263{
Tom Rini036fd652012-08-08 09:03:07 -0700264 /* Do board-specific muxes. */
Tom Rinidb7dd812012-07-31 10:50:01 -0700265 if (!strncmp(header->name, "A335BONE", HDR_NAME_LEN)) {
266 /* Beaglebone pinmux */
Tom Rini036fd652012-08-08 09:03:07 -0700267 configure_module_pin_mux(i2c1_pin_mux);
Tom Rinidb7dd812012-07-31 10:50:01 -0700268 configure_module_pin_mux(mii1_pin_mux);
269 configure_module_pin_mux(mmc0_pin_mux);
Tom Rini6bfca502012-08-08 10:32:09 -0700270 configure_module_pin_mux(mmc1_pin_mux);
Tom Rinidb7dd812012-07-31 10:50:01 -0700271 } else if (!strncmp(header->config, "SKU#01", 6)) {
272 /* General Purpose EVM */
Tom Rini036fd652012-08-08 09:03:07 -0700273 unsigned short profile = detect_daughter_board_profile();
Tom Rinidb7dd812012-07-31 10:50:01 -0700274 configure_module_pin_mux(rgmii1_pin_mux);
275 configure_module_pin_mux(mmc0_pin_mux);
Tom Rini036fd652012-08-08 09:03:07 -0700276 /* In profile #2 i2c1 and spi0 conflict. */
277 if (profile & ~PROFILE_2)
278 configure_module_pin_mux(i2c1_pin_mux);
Ilya Yanok70fb65b2012-11-06 13:06:29 +0000279 /* Profiles 2 & 3 don't have NAND */
280 if (profile & ~(PROFILE_2 | PROFILE_3))
281 configure_module_pin_mux(nand_pin_mux);
Tom Rini6bfca502012-08-08 10:32:09 -0700282 else if (profile == PROFILE_2) {
283 configure_module_pin_mux(mmc1_pin_mux);
Tom Rinia4a99ff2012-08-08 14:35:55 -0700284 configure_module_pin_mux(spi0_pin_mux);
Tom Rini6bfca502012-08-08 10:32:09 -0700285 }
Matthias Fuchsa956bdc2012-11-02 03:35:59 +0000286 } else if (!strncmp(header->config, "SKU#02", 6)) {
287 /*
288 * Industrial Motor Control (IDK)
289 * note: IDK console is on UART3 by default.
290 * So u-boot mus be build with CONFIG_SERIAL4 and
291 * CONFIG_CONS_INDEX=4
292 */
293 configure_module_pin_mux(mii1_pin_mux);
294 configure_module_pin_mux(mmc0_no_cd_pin_mux);
Tom Rinidb7dd812012-07-31 10:50:01 -0700295 } else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) {
296 /* Starter Kit EVM */
Tom Rini036fd652012-08-08 09:03:07 -0700297 configure_module_pin_mux(i2c1_pin_mux);
Tom Rinidb7dd812012-07-31 10:50:01 -0700298 configure_module_pin_mux(gpio0_7_pin_mux);
299 configure_module_pin_mux(rgmii1_pin_mux);
300 configure_module_pin_mux(mmc0_pin_mux_sk_evm);
Koen Kooi9cd7b4c2012-10-23 01:56:40 +0000301 } else if (!strncmp(header->name, "A335BNLT", HDR_NAME_LEN)) {
302 /* Beaglebone LT pinmux */
303 configure_module_pin_mux(i2c1_pin_mux);
304 configure_module_pin_mux(mii1_pin_mux);
305 configure_module_pin_mux(mmc0_pin_mux);
306 configure_module_pin_mux(mmc1_pin_mux);
Tom Rinidb7dd812012-07-31 10:50:01 -0700307 } else {
308 puts("Unknown board, cannot configure pinmux.");
309 hang();
310 }
Tom Rini65d750b2012-07-31 08:55:01 -0700311}