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/common_def.h>
18 #include <asm/arch/hardware.h>
21 #define MUX_CFG(value, offset) \
22 __raw_writel(value, (CTRL_BASE + offset));
24 /* PAD Control Fields */
25 #define SLEWCTRL (0x1 << 6)
26 #define RXACTIVE (0x1 << 5)
27 #define PULLUP_EN (0x1 << 4) /* Pull UP Selection */
28 #define PULLUDEN (0x0 << 3) /* Pull up enabled */
29 #define PULLUDDIS (0x1 << 3) /* Pull up disabled */
30 #define MODE(val) val /* used for Readability */
34 * Field names corresponds to the pad signal name
126 int ecap0_in_pwm0_out;
145 int xdma_event_intr0;
146 int xdma_event_intr1;
245 struct module_pin_mux {
250 /* Pad control register offset */
251 #define PAD_CTRL_BASE 0x800
252 #define OFFSET(x) (unsigned int) (&((struct pad_signals *) \
255 static struct module_pin_mux uart0_pin_mux[] = {
256 {OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART0_RXD */
257 {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */
262 static struct module_pin_mux mmc0_pin_mux[] = {
263 {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
264 {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
265 {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
266 {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
267 {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
268 {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
269 {OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
270 {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
276 * Configure the pin mux for the module
278 static void configure_module_pin_mux(struct module_pin_mux *mod_pin_mux)
285 for (i = 0; mod_pin_mux[i].reg_offset != -1; i++)
286 MUX_CFG(mod_pin_mux[i].val, mod_pin_mux[i].reg_offset);
289 void enable_uart0_pin_mux(void)
291 configure_module_pin_mux(uart0_pin_mux);
295 void enable_mmc0_pin_mux(void)
297 configure_module_pin_mux(mmc0_pin_mux);