TI Davinci: add a pin multiplexer configuration API

[u-boot] / board / davinci / common / misc.h

diff --git a/board/davinci/common/misc.h b/board/davinci/common/misc.h
index dc3cc41330200a95404a5ccd4cdaee5c9629db55..f6d8b1bda125ce952af90e2a4a2e4680ea67a833 100644 (file)
--- a/board/davinci/common/misc.h
+++ b/board/davinci/common/misc.h
@@ -22,8 +22,20 @@
 #ifndef __MISC_H
 #define __MISC_H
 
+/* pin muxer definitions */
+#define PIN_MUX_NUM_FIELDS     8       /* Per register */
+#define PIN_MUX_FIELD_SIZE     4       /* n in bits */
+#define PIN_MUX_FIELD_MASK     ((1 << PIN_MUX_FIELD_SIZE) - 1)
+
+/* pin definition */
+struct pinmux_config {
+       dv_reg          *mux;           /* Address of mux register */
+       unsigned char   value;          /* Value to set in field */
+       unsigned char   field;          /* field number */
+};
 
 int dvevm_read_mac_address(uint8_t *buf);
 void dv_configure_mac_address(uint8_t *rom_enetaddr);
+int davinci_configure_pin_mux(const struct pinmux_config *pins, int n_pins);
 
 #endif /* __MISC_H */