This patch adds the board specific communication routines needed by the external 4543 RTC.
Signed-off-by: Detlev Zundel dzu@denx.de Signed-off-by: Andreas Pfefferle ap@denx.de --- board/inka4x0/inka4x0.c | 20 ++++++++++ include/configs/inka4x0.h | 90 ++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 105 insertions(+), 5 deletions(-)
diff --git a/board/inka4x0/inka4x0.c b/board/inka4x0/inka4x0.c index bb5c25d..a8bc3b3 100644 --- a/board/inka4x0/inka4x0.c +++ b/board/inka4x0/inka4x0.c @@ -33,6 +33,7 @@ * MA 02111-1307 USA */
+#include <asm/io.h> #include <common.h> #include <mpc5xxx.h> #include <pci.h> @@ -189,6 +190,8 @@ int misc_init_r (void) {
int misc_init_f (void) { + struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO; + struct mpc5xxx_wu_gpio *wu_gpio = (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO; char tmp[10]; int i, br;
@@ -236,6 +239,23 @@ int misc_init_f (void) *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC3_9; *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC3_9; *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC3_9; + + /* + * Configure three wire serial interface to RTC (PSC1_4, + * PSC2_4, PSC3_4, PSC3_5) + */ + setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_PSC1_4 | + MPC5XXX_GPIO_WKUP_PSC2_4); + setbits_8(&wu_gpio->ddr, MPC5XXX_GPIO_WKUP_PSC1_4 | + MPC5XXX_GPIO_WKUP_PSC2_4); + clrbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC1_4); + clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_4 | + MPC5XXX_GPIO_SINT_PSC3_5); + setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_4 | + MPC5XXX_GPIO_SINT_PSC3_5); + setbits_8(&gpio->sint_ddr, MPC5XXX_GPIO_SINT_PSC3_5); + clrbits_8(&gpio->sint_dvo, MPC5XXX_GPIO_SINT_PSC3_5); + return 0; }
diff --git a/include/configs/inka4x0.h b/include/configs/inka4x0.h index b80796d..5f06b09 100644 --- a/include/configs/inka4x0.h +++ b/include/configs/inka4x0.h @@ -1,4 +1,7 @@ /* + * (C) Copyright 2009 + * Detlev Zundel, DENX Software Engineering, dzu@denx.de. + * * (C) Copyright 2003-2005 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * @@ -90,16 +93,17 @@ */ #include <config_cmd_default.h>
+#define CONFIG_CMD_DATE #define CONFIG_CMD_DHCP #define CONFIG_CMD_EXT2 #define CONFIG_CMD_FAT #define CONFIG_CMD_IDE #define CONFIG_CMD_NFS #define CONFIG_CMD_PCI +#define CONFIG_CMD_PING #define CONFIG_CMD_SNTP #define CONFIG_CMD_USB
- #define CONFIG_TIMESTAMP 1 /* Print image info with timestamp */
#if (TEXT_BASE == 0xFFE00000) /* Boot low */ @@ -240,15 +244,91 @@ * 01 -> CAN1 on I2C1, CAN2 on Tmr0/1 do not use on TQM5200 with onboard * EEPROM * use PSC1 as UART: Bits 28-31 (mask: 0x00000007): 0100 - * use PSC6_1 and PSC6_3 as GPIO: Bits 9:11 (mask: 0x07000000): - * 011 -> PSC6 could not be used as UART or CODEC. IrDA still possible. + * use PSC2 as UART: Bits 24-27 (mask: 0x00000070): 0100 + * use PSC3 as UART: Bits 20-23 (mask: 0x00000700): 0100 + * use PSC6 as UART: Bits 9-11 (mask: 0x00700000): 0101 */ -#define CONFIG_SYS_GPS_PORT_CONFIG 0x01001004 +#define CONFIG_SYS_GPS_PORT_CONFIG 0x01501444
/* * RTC configuration */ -#define CONFIG_RTC_MPC5200 1 /* use internal MPC5200 RTC */ +#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 */
/* * Miscellaneous configurable options