bsp/tms570: Board-specific tms570_emif_sdram_init()

Update #4982.

1 files changed, 0 insertions, 96 deletions

diff --git a/bsps/arm/tms570/start/init_emif_sdram.c b/bsps/arm/tms570/start/init_emif_sdram.c
deleted file mode 100644
index 0b190da321..0000000000
--- a/bsps/arm/tms570/start/init_emif_sdram.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-
-/**
- * @file
- *
- * @ingroup RTEMSBSPsARMTMS570
- *
- * @brief This source file contains the initialization of
- *   external memory/SDRAM interface.
- */
-
-/*
- * Copyright (C) 2016 Pavel Pisa <pisa@cmp.felk.cvut.cz>
- *
- * Czech Technical University in Prague
- * Zikova 1903/4
- * 166 36 Praha 6
- * Czech Republic
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdint.h>
-#include <bsp/tms570.h>
-#include <bsp/tms570_hwinit.h>
-
-void tms570_emif_sdram_init( void )
-{
-  uint32_t dummy;
-  uint32_t sdtimr = 0;
-  uint32_t sdcr = 0;
-
-  /* Do not run attempt to initialize SDRAM when code is running from it */
-  if ( tms570_running_from_sdram() )
-    return;
-
-  sdtimr = TMS570_EMIF_SDTIMR_T_RFC_SET( sdtimr, 6 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_RP_SET( sdtimr, 2 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_RCD_SET( sdtimr, 2 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_WR_SET( sdtimr, 2 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_RAS_SET( sdtimr, 4 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_RC_SET( sdtimr, 6 - 1 );
-  sdtimr = TMS570_EMIF_SDTIMR_T_RRD_SET( sdtimr, 2 - 1 );
-
-  TMS570_EMIF.SDTIMR = sdtimr;
-
-  /* Minimum number of ECLKOUT cycles from Self-Refresh exit to any command */
-  TMS570_EMIF.SDSRETR = 5;
-  /* Define the SDRAM refresh period in terms of EMIF_CLK cycles. */
-  TMS570_EMIF.SDRCR = 2000;
-
-  /* SR - Self-Refresh mode bit. */
-  sdcr |= TMS570_EMIF_SDCR_SR * 0;
-  /* field: PD - Power Down bit controls entering and exiting of the power-down mode. */
-  sdcr |= TMS570_EMIF_SDCR_PD * 0;
-  /* PDWR - Perform refreshes during power down. */
-  sdcr |= TMS570_EMIF_SDCR_PDWR * 0;
-  /* NM - Narrow mode bit defines whether SDRAM is 16- or 32-bit-wide */
-  sdcr |= TMS570_EMIF_SDCR_NM * 1;
-  /* CL - CAS Latency. */
-  sdcr = TMS570_EMIF_SDCR_CL_SET( sdcr, 2 );
-  /* CL can only be written if BIT11_9LOCK is simultaneously written with a 1. */
-  sdcr |= TMS570_EMIF_SDCR_BIT11_9LOCK * 1;
-  /* IBANK - Internal SDRAM Bank size. */
-  sdcr = TMS570_EMIF_SDCR_IBANK_SET( sdcr, 2 ); /* 4-banks device */
-  /* Page Size. This field defines the internal page size of connected SDRAM devices. */
-  sdcr = TMS570_EMIF_SDCR_PAGESIZE_SET( sdcr, 0 ); /* elements_256 */
-
-  TMS570_EMIF.SDCR = sdcr;
-
-  dummy = *(volatile uint32_t*)TMS570_MEMORY_SDRAM_ORIGIN;
-  (void) dummy;
-  TMS570_EMIF.SDRCR = 31;
-
-  /* Define the SDRAM refresh period in terms of EMIF_CLK cycles. */
-  TMS570_EMIF.SDRCR = 312;
-}