+#define CONFIG_RTC_RTC4543 1 /* use external RTC */
+
+/*
+ * Software (bit-bang) three wire serial configuration
+ *
+ * Note that we need the ifdefs because otherwise compilation of
+ * mkimage.c fails.
+ */
+#define CONFIG_SOFT_TWS 1
+
+#ifdef TWS_IMPLEMENTATION
+#include <mpc5xxx.h>
+#include <asm/io.h>
+
+#define TWS_CE MPC5XXX_GPIO_WKUP_PSC1_4 /* GPIO_WKUP_0 */
+#define TWS_WR MPC5XXX_GPIO_WKUP_PSC2_4 /* GPIO_WKUP_1 */
+#define TWS_DATA MPC5XXX_GPIO_SINT_PSC3_4 /* GPIO_SINT_0 */
+#define TWS_CLK MPC5XXX_GPIO_SINT_PSC3_5 /* GPIO_SINT_1 */
+
+static inline void tws_ce(unsigned bit)
+{
+ struct mpc5xxx_wu_gpio *wu_gpio =
+ (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+ if (bit)
+ setbits_8(&wu_gpio->dvo, TWS_CE);
+ else
+ clrbits_8(&wu_gpio->dvo, TWS_CE);
+}
+
+static inline void tws_wr(unsigned bit)
+{
+ struct mpc5xxx_wu_gpio *wu_gpio =
+ (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+ if (bit)
+ setbits_8(&wu_gpio->dvo, TWS_WR);
+ else
+ clrbits_8(&wu_gpio->dvo, TWS_WR);
+}
+
+static inline void tws_clk(unsigned bit)
+{
+ struct mpc5xxx_gpio *gpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+ if (bit)
+ setbits_8(&gpio->sint_dvo, TWS_CLK);
+ else
+ clrbits_8(&gpio->sint_dvo, TWS_CLK);
+}
+
+static inline void tws_data(unsigned bit)
+{
+ struct mpc5xxx_gpio *gpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+ if (bit)
+ setbits_8(&gpio->sint_dvo, TWS_DATA);
+ else
+ clrbits_8(&gpio->sint_dvo, TWS_DATA);
+}
+
+static inline unsigned tws_data_read(void)
+{
+ struct mpc5xxx_gpio *gpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+ return !!(in_8(&gpio->sint_ival) & TWS_DATA);
+}
+
+static inline void tws_data_config_output(unsigned output)
+{
+ struct mpc5xxx_gpio *gpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+ if (output)
+ setbits_8(&gpio->sint_ddr, TWS_DATA);
+ else
+ clrbits_8(&gpio->sint_ddr, TWS_DATA);
+}
+#endif /* TWS_IMPLEMENTATION */