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bsp/tms570: Pinmux support and EMAC pin definition added

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Signed-off-by: Premysl Houdek <kom541000@gmail.com>
This commit is contained in:
Premysl Houdek
2015-11-12 23:11:28 +01:00
committed by Gedare Bloom
parent 6302c61fd7
commit e5d5767e01
4 changed files with 216 additions and 1 deletions
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3
c/src/lib/libbsp/arm/tms570/Makefile.am
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@@ -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

122
c/src/lib/libbsp/arm/tms570/include/tms570-pinmux.h Normal file
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@@ -0,0 +1,122 @@
/**
* @file tms570-pinmux.h
*
* @ingroup tms570
*
* @brief I/O Multiplexing Module (IOMM) basic support
*/
/*
* Copyright (c) 2015 Premysl Houdek <kom541000@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 */

88
c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c Normal file
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@@ -0,0 +1,88 @@
/**
* @file pinmux.c
*
* @ingroup tms570
*
* @brief I/O Multiplexing Module (IOMM) basic support
*/
/*
* Copyright (c) 2015 Premysl Houdek <kom541000@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));
}

4
c/src/lib/libbsp/arm/tms570/preinstall.am
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@@ -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