4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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.
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.
17 #include <asm/arch/sys_proto.h>
18 #include <asm/arch/hardware.h>
19 #include <asm/arch/mux.h>
24 static 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 */
30 static struct module_pin_mux mmc0_pin_mux[] = {
31 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
32 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
33 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
34 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
35 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
36 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
37 {OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
38 {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
42 static struct module_pin_mux mmc0_pin_mux_sk_evm[] = {
43 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
44 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
45 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
46 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
47 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
48 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
49 {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
53 static struct module_pin_mux mmc1_pin_mux[] = {
54 {OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
55 {OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
56 {OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
57 {OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
58 {OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */
59 {OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
60 {OFFSET(gpmc_csn0), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_WP */
61 {OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_CD */
65 static struct module_pin_mux i2c0_pin_mux[] = {
66 {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
67 PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
68 {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE |
69 PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
73 static struct module_pin_mux i2c1_pin_mux[] = {
74 {OFFSET(spi0_d1), (MODE(2) | RXACTIVE |
75 PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
76 {OFFSET(spi0_cs0), (MODE(2) | RXACTIVE |
77 PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
81 static struct module_pin_mux spi0_pin_mux[] = {
82 {OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */
83 {OFFSET(spi0_d0), (MODE(0) | RXACTIVE |
84 PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */
85 {OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */
86 {OFFSET(spi0_cs0), (MODE(0) | RXACTIVE |
87 PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */
91 static struct module_pin_mux gpio0_7_pin_mux[] = {
92 {OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */
96 static struct module_pin_mux rgmii1_pin_mux[] = {
97 {OFFSET(mii1_txen), MODE(2)}, /* RGMII1_TCTL */
98 {OFFSET(mii1_rxdv), MODE(2) | RXACTIVE}, /* RGMII1_RCTL */
99 {OFFSET(mii1_txd3), MODE(2)}, /* RGMII1_TD3 */
100 {OFFSET(mii1_txd2), MODE(2)}, /* RGMII1_TD2 */
101 {OFFSET(mii1_txd1), MODE(2)}, /* RGMII1_TD1 */
102 {OFFSET(mii1_txd0), MODE(2)}, /* RGMII1_TD0 */
103 {OFFSET(mii1_txclk), MODE(2)}, /* RGMII1_TCLK */
104 {OFFSET(mii1_rxclk), MODE(2) | RXACTIVE}, /* RGMII1_RCLK */
105 {OFFSET(mii1_rxd3), MODE(2) | RXACTIVE}, /* RGMII1_RD3 */
106 {OFFSET(mii1_rxd2), MODE(2) | RXACTIVE}, /* RGMII1_RD2 */
107 {OFFSET(mii1_rxd1), MODE(2) | RXACTIVE}, /* RGMII1_RD1 */
108 {OFFSET(mii1_rxd0), MODE(2) | RXACTIVE}, /* RGMII1_RD0 */
109 {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN},/* MDIO_DATA */
110 {OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
114 static struct module_pin_mux mii1_pin_mux[] = {
115 {OFFSET(mii1_rxerr), MODE(0) | RXACTIVE}, /* MII1_RXERR */
116 {OFFSET(mii1_txen), MODE(0)}, /* MII1_TXEN */
117 {OFFSET(mii1_rxdv), MODE(0) | RXACTIVE}, /* MII1_RXDV */
118 {OFFSET(mii1_txd3), MODE(0)}, /* MII1_TXD3 */
119 {OFFSET(mii1_txd2), MODE(0)}, /* MII1_TXD2 */
120 {OFFSET(mii1_txd1), MODE(0)}, /* MII1_TXD1 */
121 {OFFSET(mii1_txd0), MODE(0)}, /* MII1_TXD0 */
122 {OFFSET(mii1_txclk), MODE(0) | RXACTIVE}, /* MII1_TXCLK */
123 {OFFSET(mii1_rxclk), MODE(0) | RXACTIVE}, /* MII1_RXCLK */
124 {OFFSET(mii1_rxd3), MODE(0) | RXACTIVE}, /* MII1_RXD3 */
125 {OFFSET(mii1_rxd2), MODE(0) | RXACTIVE}, /* MII1_RXD2 */
126 {OFFSET(mii1_rxd1), MODE(0) | RXACTIVE}, /* MII1_RXD1 */
127 {OFFSET(mii1_rxd0), MODE(0) | RXACTIVE}, /* MII1_RXD0 */
128 {OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
129 {OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
133 void enable_uart0_pin_mux(void)
135 configure_module_pin_mux(uart0_pin_mux);
139 void enable_i2c0_pin_mux(void)
141 configure_module_pin_mux(i2c0_pin_mux);
145 * The AM335x GP EVM, if daughter card(s) are connected, can have 8
146 * different profiles. These profiles determine what peripherals are
147 * valid and need pinmux to be configured.
149 #define PROFILE_NONE 0x0
150 #define PROFILE_0 (1 << 0)
151 #define PROFILE_1 (1 << 1)
152 #define PROFILE_2 (1 << 2)
153 #define PROFILE_3 (1 << 3)
154 #define PROFILE_4 (1 << 4)
155 #define PROFILE_5 (1 << 5)
156 #define PROFILE_6 (1 << 6)
157 #define PROFILE_7 (1 << 7)
158 #define PROFILE_MASK 0x7
159 #define PROFILE_ALL 0xFF
162 #define I2C_CPLD_ADDR 0x35
165 static unsigned short detect_daughter_board_profile(void)
169 if (i2c_probe(I2C_CPLD_ADDR))
172 if (i2c_read(I2C_CPLD_ADDR, CFG_REG, 1, (unsigned char *)(&val), 2))
175 return (1 << (val & PROFILE_MASK));
178 void enable_board_pin_mux(struct am335x_baseboard_id *header)
180 /* Do board-specific muxes. */
181 if (!strncmp(header->name, "A335BONE", HDR_NAME_LEN)) {
182 /* Beaglebone pinmux */
183 configure_module_pin_mux(i2c1_pin_mux);
184 configure_module_pin_mux(mii1_pin_mux);
185 configure_module_pin_mux(mmc0_pin_mux);
186 configure_module_pin_mux(mmc1_pin_mux);
187 } else if (!strncmp(header->config, "SKU#01", 6)) {
188 /* General Purpose EVM */
189 unsigned short profile = detect_daughter_board_profile();
190 configure_module_pin_mux(rgmii1_pin_mux);
191 configure_module_pin_mux(mmc0_pin_mux);
192 /* In profile #2 i2c1 and spi0 conflict. */
193 if (profile & ~PROFILE_2)
194 configure_module_pin_mux(i2c1_pin_mux);
195 else if (profile == PROFILE_2) {
196 configure_module_pin_mux(mmc1_pin_mux);
197 configure_module_pin_mux(spi0_pin_mux);
199 } else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) {
200 /* Starter Kit EVM */
201 configure_module_pin_mux(i2c1_pin_mux);
202 configure_module_pin_mux(gpio0_7_pin_mux);
203 configure_module_pin_mux(rgmii1_pin_mux);
204 configure_module_pin_mux(mmc0_pin_mux_sk_evm);
206 puts("Unknown board, cannot configure pinmux.");