diff options
Diffstat (limited to 'nuttx/arch/arm/src/lpc313x/lpc313x_setfreqin.c')
-rwxr-xr-x | nuttx/arch/arm/src/lpc313x/lpc313x_setfreqin.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/nuttx/arch/arm/src/lpc313x/lpc313x_setfreqin.c b/nuttx/arch/arm/src/lpc313x/lpc313x_setfreqin.c deleted file mode 100755 index dc6ef2b3a..000000000 --- a/nuttx/arch/arm/src/lpc313x/lpc313x_setfreqin.c +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************************** - * arch/arm/src/lpc313x/lpc313x_setfreqin.c - * - * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> - * - * References: - * - NXP UM10314 LPC3130/31 User manual Rev. 1.01 — 9 September 2009 - * - NXP lpc313x.cdl.drivers.zip example driver code - * - * 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. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <stdint.h> - -#include <arch/board/board.h> - -#include "lpc313x_cgudrvr.h" - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: lpc313x_selectfreqin - * - * Description: - * Set the base frequency source selection for with a clock domain - * - ****************************************************************************/ - -void lpc313x_selectfreqin(enum lpc313x_domainid_e dmnid, uint32_t finsel) -{ - uint32_t scraddr = LPC313X_CGU_SCR(dmnid); - uint32_t fs1addr = LPC313X_CGU_FS1(dmnid); - uint32_t fs2addr = LPC313X_CGU_FS2(dmnid); - uint32_t scrbits; - - /* Get the frequency selection from the switch configuration register (SCR) - * for this domain. - */ - - scrbits = getreg32(scraddr) & ~(CGU_SCR_ENF1|CGU_SCR_ENF2); - - /* If FS1 is currently enabled set the reference clock to FS2 and enable FS2 */ - - if ((getreg32(LPC313X_CGU_SSR(dmnid)) & CGU_SSR_FS1STAT) != 0) - { - /* Check if the selected frequency, FS1, is same as requested */ - - if ((getreg32(fs1addr) & CGU_FS_MASK) != finsel) - { - /* No.. Set up FS2 */ - - putreg32(finsel, fs2addr); - putreg32(scrbits | CGU_SCR_ENF2, scraddr); - } - } - - /* FS1 is not currently enabled, check if the selected frequency, FS2, - * is same as requested - */ - - else if ((getreg32(fs2addr) & CGU_FS_MASK) != finsel) - { - /* No.. Set up FS1 */ - - putreg32(finsel, fs1addr); - putreg32(scrbits | CGU_SCR_ENF1, scraddr); - } -} |