From: Premysl Houdek <kom541...@gmail.com> Signed-off-by: Premysl Houdek <kom541...@gmail.com> --- c/src/lib/libbsp/arm/tms570/Makefile.am | 3 +- .../lib/libbsp/arm/tms570/include/tms570-pinmux.h | 122 +++++++++++++++++++++ c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c | 88 +++++++++++++++ c/src/lib/libbsp/arm/tms570/preinstall.am | 4 + 4 files changed, 216 insertions(+), 1 deletion(-) create mode 100644 c/src/lib/libbsp/arm/tms570/include/tms570-pinmux.h create mode 100644 c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c
diff --git a/c/src/lib/libbsp/arm/tms570/Makefile.am b/c/src/lib/libbsp/arm/tms570/Makefile.am index a278aa2..7936b07 100644 --- a/c/src/lib/libbsp/arm/tms570/Makefile.am +++ b/c/src/lib/libbsp/arm/tms570/Makefile.am @@ -41,6 +41,7 @@ include_bsp_HEADERS += include/tms570-vim.h include_bsp_HEADERS += include/tms570-pom.h include_bsp_HEADERS += include/tms570-sci-driver.h include_bsp_HEADERS += include/system-clocks.h +include_bsp_HEADERS += include/tms570-pinmux.h include_bsp_ti_hercules_HEADERS = include/ti_herc/reg_adc.h include_bsp_ti_hercules_HEADERS += include/ti_herc/reg_ccmsr.h @@ -151,7 +152,7 @@ libbsp_a_SOURCES += clock/benchmark_timer.c # RTC # GPIO - +libbsp_a_SOURCES += pinmux/pinmux.c # Timer # Benchmark Timer diff --git a/c/src/lib/libbsp/arm/tms570/include/tms570-pinmux.h b/c/src/lib/libbsp/arm/tms570/include/tms570-pinmux.h new file mode 100644 index 0000000..46c4ae5 --- /dev/null +++ b/c/src/lib/libbsp/arm/tms570/include/tms570-pinmux.h @@ -0,0 +1,122 @@ +/** + * @file tms570-pinmux.h + * + * @ingroup tms570 + * + * @brief I/O Multiplexing Module (IOMM) basic support + */ + +/* + * Copyright (c) 2015 Premysl Houdek <kom541...@gmail.com> + * + * Google Summer of Code 2014 at + * Czech Technical University in Prague + * Zikova 1903/4 + * 166 36 Praha 6 + * Czech Republic + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef LIBBSP_ARM_TMS570_PINMUX_H +#define LIBBSP_ARM_TMS570_PINMUX_H + +#ifndef ASM +#include <bsp/tms570.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +#define TMS570_PIN_NUM_SHIFT 0 +#define TMS570_PIN_NUM_MASK 0x0fff + +#define TMS570_PIN_FNC_SHIFT 12 +#define TMS570_PIN_FNC_MASK 0xf000 + +#define TMS570_PIN_FNC_AUTO (-1) + +#define TMS570_PIN_AND_FNC(pin, fnc) \ + ((pin) | ((fnc)<<TMS570_PIN_FNC_SHIFT)) + +#define TMS570_BALL_WITH_MMR(mmrx, pos) \ + ((pos) | ((mmrx)<<2)) + +/* Definition for pins/balls which has to be set for Ethernet MII */ + +#define TMS570_BALL_C3 TMS570_BALL_WITH_MMR(0, 2) +#define TMS570_BALL_C3_MIBSPI3NCS_3 TMS570_PIN_AND_FNC(TMS570_BALL_C3, 0) +#define TMS570_BALL_C3_I2C_SCL TMS570_PIN_AND_FNC(TMS570_BALL_C3, 1) + +#define TMS570_BALL_F3 TMS570_BALL_WITH_MMR(20, 2) +#define TMS570_BALL_F3_MII_COL TMS570_PIN_AND_FNC(TMS570_BALL_F3, 2) + +#define TMS570_BALL_B4 TMS570_BALL_WITH_MMR(17, 2) +#define TMS570_BALL_B4_MII_CRS TMS570_PIN_AND_FNC(TMS570_BALL_B4, 1) + +#define TMS570_BALL_B11 TMS570_BALL_WITH_MMR(19, 1) +#define TMS570_BALL_B11_MII_RX_DV TMS570_PIN_AND_FNC(TMS570_BALL_B11, 1) + +#define TMS570_BALL_N19 TMS570_BALL_WITH_MMR(10, 0) +#define TMS570_BALL_N19_MII_RX_ER TMS570_PIN_AND_FNC(TMS570_BALL_N19, 1) + +#define TMS570_BALL_K19 TMS570_BALL_WITH_MMR(14, 1) +#define TMS570_BALL_K19_MII_RX_CLK TMS570_PIN_AND_FNC(TMS570_BALL_K19, 1) + +#define TMS570_BALL_P1 TMS570_BALL_WITH_MMR(11, 3) +#define TMS570_BALL_P1_MII_RXD_0 TMS570_PIN_AND_FNC(TMS570_BALL_P1, 2) + +#define TMS570_BALL_A14 TMS570_BALL_WITH_MMR(12, 0) +#define TMS570_BALL_A14_MII_RXD_1 TMS570_PIN_AND_FNC(TMS570_BALL_A14, 1) + +#define TMS570_BALL_G19 TMS570_BALL_WITH_MMR(12, 2) +#define TMS570_BALL_G19_MII_RXD_2 TMS570_PIN_AND_FNC(TMS570_BALL_G19, 2) + +#define TMS570_BALL_H18 TMS570_BALL_WITH_MMR(12, 3) +#define TMS570_BALL_H18_MII_RXD_3 TMS570_PIN_AND_FNC(TMS570_BALL_H18, 2) + +#define TMS570_BALL_D19 TMS570_BALL_WITH_MMR(17, 0) +#define TMS570_BALL_D19_MII_TX_CLK TMS570_PIN_AND_FNC(TMS570_BALL_D19, 1) + +#define TMS570_BALL_J18 TMS570_BALL_WITH_MMR(13, 0) +#define TMS570_BALL_J18_MII_TXD_0 TMS570_PIN_AND_FNC(TMS570_BALL_J18, 2) + +#define TMS570_BALL_J19 TMS570_BALL_WITH_MMR(13, 1) +#define TMS570_BALL_J19_MII_TXD_1 TMS570_PIN_AND_FNC(TMS570_BALL_J19, 2) + +#define TMS570_BALL_R2 TMS570_BALL_WITH_MMR(13, 3) +#define TMS570_BALL_R2_MII_TXD_2 TMS570_PIN_AND_FNC(TMS570_BALL_R2, 2) + +#define TMS570_BALL_E18 TMS570_BALL_WITH_MMR(14, 0) +#define TMS570_BALL_E18_MII_TXD_3 TMS570_PIN_AND_FNC(TMS570_BALL_E18, 2) + +#define TMS570_BALL_H19 TMS570_BALL_WITH_MMR(13, 2) +#define TMS570_BALL_H19_MII_TXEN TMS570_PIN_AND_FNC(TMS570_BALL_H19, 2) + +#define TMS570_BALL_V5 TMS570_BALL_WITH_MMR(7, 1) +#define TMS570_BALL_V5_MDCLK TMS570_PIN_AND_FNC(TMS570_BALL_V5, 2) + +#define TMS570_BALL_G3 TMS570_BALL_WITH_MMR(8, 1) +#define TMS570_BALL_G3_MDIO TMS570_PIN_AND_FNC(TMS570_BALL_G3, 2) + +#define TMS570_BALL_XX TMS570_BALL_WITH_MMR(29, 3) +#define TMS570_BALL_XX_GMII_SEL TMS570_PIN_AND_FNC(TMS570_BALL_XX, 0) + +/* Generic functions select pin to peripheral connection */ + +void tms570_bsp_pin_set_function(int pin_num, int pin_fnc); + +void tms570_bsp_pin_clear_function(int pin_num, int pin_fnc); + +#endif + +/** @} */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LIBBSP_ARM_TMS570_IRQ_H */ diff --git a/c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c b/c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c new file mode 100644 index 0000000..79d6b1e --- /dev/null +++ b/c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c @@ -0,0 +1,88 @@ +/** + * @file pinmux.c + * + * @ingroup tms570 + * + * @brief I/O Multiplexing Module (IOMM) basic support + */ + +/* + * Copyright (c) 2015 Premysl Houdek <kom541...@gmail.com> + * + * Google Summer of Code 2014 at + * Czech Technical University in Prague + * Zikova 1903/4 + * 166 36 Praha 6 + * Czech Republic + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp/tms570.h> +#include <bsp/tms570-pinmux.h> + +/** + * @brief select desired function of pin/ball + * + * The function setups multiplexer to interconnect pin with + * specified function/peripheral. Pin number is index into pinmux + * entries array. Predefined values for pins are in a format + * TMS570_BALL_<column><row> (for example TMS570_BALL_N19). + * The multiplexer allows to interconnect one pin to multiple + * signal sources/sings in the theory but it is usually bad choice. + * The function sets only specified function and clears all other + * connections. + * + * @param[in] pin_num pin/ball identifier (index into pinmux array) + * @param[in] pin_fnc function number 0 .. 7, if value TMS570_PIN_FNC_AUTO + * is specified then pin function is extracted from + * pin_num argument + * @retval Void + */ +void +tms570_bsp_pin_set_function(int pin_num, int pin_fnc) +{ + unsigned int pin_shift; + typeof(TMS570_IOMM.PINMUX.PINMMR0) *pinmmrx; + + if ( pin_fnc == TMS570_PIN_FNC_AUTO ) { + pin_fnc = (pin_num & TMS570_PIN_FNC_MASK) >> TMS570_PIN_FNC_SHIFT; + } + pin_num = (pin_num & TMS570_PIN_NUM_MASK) >> TMS570_PIN_NUM_SHIFT; + + pinmmrx = &TMS570_IOMM.PINMUX.PINMMR0; + pinmmrx += (pin_num >> 2); + pin_shift = (pin_num & 0x3)*8; + *pinmmrx = (*pinmmrx & ~(0xff << pin_shift)) | (1 << (pin_fnc + pin_shift)); +} + +/** + * @brief clear connection between pin and specified peripherals/function + * + * This function switches off given connection and leaves rest + * of multiplexer setup intact. + * + * @param[in] pin_num pin/ball identifier (index into pinmux array) + * @param[in] pin_fnc function number 0 .. 7, if value TMS570_PIN_FNC_AUTO + * is specified then pin function is extracted from + * pin_num argument + * @retval Void + */ +void +tms570_bsp_pin_clear_function(int pin_num, int pin_fnc) +{ + unsigned int pin_shift; + typeof(TMS570_IOMM.PINMUX.PINMMR0) *pinmmrx; + + if ( pin_fnc == TMS570_PIN_FNC_AUTO ) { + pin_fnc = (pin_num & TMS570_PIN_FNC_MASK) >> TMS570_PIN_FNC_SHIFT; + } + pin_num = (pin_num & TMS570_PIN_NUM_MASK) >> TMS570_PIN_NUM_SHIFT; + + pinmmrx = &TMS570_IOMM.PINMUX.PINMMR0; + pinmmrx += (pin_num >> 2); + pin_shift = (pin_num & 0x3)*8; + *pinmmrx = *pinmmrx & ~(1 << (pin_fnc+pin_shift)); +} diff --git a/c/src/lib/libbsp/arm/tms570/preinstall.am b/c/src/lib/libbsp/arm/tms570/preinstall.am index c6408cb..2fddba8 100644 --- a/c/src/lib/libbsp/arm/tms570/preinstall.am +++ b/c/src/lib/libbsp/arm/tms570/preinstall.am @@ -114,6 +114,10 @@ $(PROJECT_INCLUDE)/bsp/system-clocks.h: include/system-clocks.h $(PROJECT_INCLUD $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/system-clocks.h PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/system-clocks.h +$(PROJECT_INCLUDE)/bsp/tms570-pinmux.h: include/tms570-pinmux.h $(PROJECT_INCLUDE)/bsp/$(dirstamp) + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/tms570-pinmux.h +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/tms570-pinmux.h + $(PROJECT_INCLUDE)/bsp/ti_herc/reg_adc.h: include/ti_herc/reg_adc.h $(PROJECT_INCLUDE)/bsp/ti_herc/$(dirstamp) $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/ti_herc/reg_adc.h PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/ti_herc/reg_adc.h -- 1.9.1 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
