diff options
Diffstat (limited to 'os/hal/platforms/Rx62n/rx62n_mii.c')
| -rw-r--r-- | os/hal/platforms/Rx62n/rx62n_mii.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/os/hal/platforms/Rx62n/rx62n_mii.c b/os/hal/platforms/Rx62n/rx62n_mii.c deleted file mode 100644 index 5f3496480..000000000 --- a/os/hal/platforms/Rx62n/rx62n_mii.c +++ /dev/null @@ -1,259 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-/**
- * @file RX62N/rx62n_mii.c
- * @brief RX62N low level MII driver code.
- *
- * @addtogroup RX62N_MII
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-#include "rx62n_mii.h"
-
-#if HAL_USE_MAC || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-#if (RX62N_SYSCLK == 96000000)
-__attribute__((always_inline))
-static inline void delay200ns(void) {
-
- asm volatile ("mov.l #5,r2 \n\t"
- "1: \n\t"
- "sub #1,r2 \n\t"
- "bne.b 1b \n\t");
-}
-
-__attribute__((always_inline))
-static inline void delay1ms(void) {
-
- asm volatile ("mov.l #24000,r2 \n\t"
- "1: \n\t"
- "sub #1,r2 \n\t"
- "bne.b 1b \n\t");
-}
-#else
-#error Adjust delay200ns and delay1ms for RX62N_SYSCLK other than 96MHz.
-#endif
-
-/**
- * @brief Write 1 bit to SMI bus.
- *
- * @param[in] b the bit value
- */
-static void smi_bit_w(uint32_t b) {
- uint32_t pir = PIR_MMD;
-
- if (b)
- pir |= PIR_MDO;
- ETHERC.PIR.LONG = pir;
- /* wait 10ns */
- asm volatile("nop");
- ETHERC.PIR.LONG = pir | PIR_MDC;
- delay200ns();
- ETHERC.PIR.LONG = pir;
- delay200ns();
-}
-
-/**
- * @brief Read 1 bit from SMI bus.
- *
- * @return The bit value.
- */
-static uint32_t smi_bit_r(void) {
- uint32_t pir = 0;
-
- ETHERC.PIR.LONG = PIR_MDC;
- delay200ns();
- ETHERC.PIR.LONG = 0;
- delay200ns();
- if (ETHERC.PIR.LONG & PIR_MDI)
- pir = 1;
- return pir;
-}
-
-/**
- * @brief Release SMI bus.
- */
-static void smi_z0(void) {
-
- ETHERC.PIR.LONG = PIR_MDC;
- delay200ns();
- ETHERC.PIR.LONG = 0;
- delay200ns();
-}
-
-/**
- * @brief Write up to 32 bits to SMI bus (MSB first).
- *
- * @note Writing starts from len-1 bit.
- * @param[in] value value to write
- * @param[in] len number of bits
- */
-static void smi_write(uint32_t value, uint8_t len) {
-
- while (len--)
- smi_bit_w(value & (1<<len) );
-}
-
-/**
- * @brief Read up to 16 bits from SMI bus (MSB first).
- *
- * @param[in] len number of bits
- * @return The bits value.
- */
-static phyreg_t smi_read(uint8_t len) {
- phyreg_t value = 0;
-
- while (len--) {
- value <<= 1;
- if (smi_bit_r())
- value |= 1;
- }
- return value;
-}
-
-static phyreg_t mii_read_reg(uint8_t phyaddr, phyaddr_t regaddr) {
- phyreg_t value;
-
- /* preamble */
- smi_write(0xFFFFFFFF, 32);
- /* start of frame */
- smi_write(1, 2);
- /* opcode (read) */
- smi_write(2, 2);
- /* phy address */
- smi_write(phyaddr, 5);
- /* phy register */
- smi_write(regaddr, 5);
- /* turn around */
- smi_z0();
- /* phy register */
- value = smi_read(16);
- /* idle */
- smi_z0();
- return value;
-}
-
-static void mii_write_reg(uint8_t phyaddr, phyaddr_t regaddr, phyreg_t value) {
-
- /* preamble */
- smi_write(0xFFFFFFFF, 32);
- /* start of frame */
- smi_write(1, 2);
- /* opcode (write) */
- smi_write(1, 2);
- /* phy address */
- smi_write(phyaddr, 5);
- /* phy register */
- smi_write(regaddr, 5);
- /* turn around */
- smi_write(1, 2);
- /* phy register */
- smi_write(value, 16);
- /* idle */
- ETHERC.PIR.LONG = 0;
-}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level MII driver initialization.
- *
- * @notapi
- */
-void miiInit(void) {
-
-}
-
-/**
- * @brief Resets a PHY device.
- *
- * @param[in] macp pointer to the @p MACDriver object
- *
- * @notapi
- */
-void miiReset(MACDriver *macp) {
-
- (void)macp;
-
- /*
- * PHY reset by pulsing the RESET_OUT pin.
- */
- ETHERC.PIR.LONG = 0;
- /* Release PHY pins */
- IOPORT.PFENET.BYTE = 0;
- /* Pulse RESET_OUT pin */
- palClearPad(GPIO10, PORTA_ETH_RESETOUT);
- delay1ms();
- palSetPad(GPIO10, PORTA_ETH_RESETOUT);
- delay1ms();
- /* Enable Ethernet pins, set RMII mode */
- IOPORT.PFENET.BYTE = (1<<7)|(0<<4)|(1<<1);
-}
-
-/**
- * @brief Reads a PHY register through the MII interface.
- *
- * @param[in] macp pointer to the @p MACDriver object
- * @param[in] addr the register address
- * @return The register value.
- *
- * @notapi
- */
-phyreg_t miiGet(MACDriver *macp, phyaddr_t regaddr) {
-
- (void)macp;
- return mii_read_reg(macp->phyaddr, regaddr);
-}
-
-/**
- * @brief Writes a PHY register through the MII interface.
- *
- * @param[in] macp pointer to the @p MACDriver object
- * @param[in] addr the register address
- * @param[in] value the new register value
- *
- * @notapi
- */
-void miiPut(MACDriver *macp, phyaddr_t regaddr, phyreg_t value) {
-
- (void)macp;
- mii_write_reg(macp->phyaddr, regaddr, value);
-}
-
-#endif /* HAL_USE_MAC */
-
-/** @} */
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