diff options
Diffstat (limited to 'os/hal/platforms/LPC8xx/hal_lld.c')
| -rw-r--r-- | os/hal/platforms/LPC8xx/hal_lld.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/os/hal/platforms/LPC8xx/hal_lld.c b/os/hal/platforms/LPC8xx/hal_lld.c deleted file mode 100644 index 026205706..000000000 --- a/os/hal/platforms/LPC8xx/hal_lld.c +++ /dev/null @@ -1,140 +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 LPC8xx/hal_lld.c
- * @brief LPC8xx HAL subsystem low level driver source.
- *
- * @addtogroup HAL
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level HAL driver initialization.
- *
- * @notapi
- */
-void hal_lld_init(void) {
-
- /* SysTick initialization using the system clock.*/
- nvicSetSystemHandlerPriority(HANDLER_SYSTICK, CORTEX_PRIORITY_SYSTICK);
- SysTick->LOAD = LPC8xx_SYSCLK / CH_CFG_FREQUENCY - 1;
- SysTick->VAL = 0;
- SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
- SysTick_CTRL_ENABLE_Msk |
- SysTick_CTRL_TICKINT_Msk;
-}
-
-/**
- * @brief LPC8xx clocks and PLL initialization.
- * @note This function must be invoked only after the system reset.
- *
- * @special
- */
-void lpc8xx_clock_init(void) {
- int i;
-
- /* Enable clocks to IOCON & SWM. */
- LPC_SYSCON->SYSAHBCLKCTRL |= ((1<<18)|(1<<7));
-
- /* System oscillator initialization.*/
-#if (LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_SYSOSC)
- // switch off pull-ups
- LPC_IOCON->PIO0_8 &= ~(3<<3);
- LPC_IOCON->PIO0_9 &= ~(3<<3);
-
- // enable xtalin/xtalout
- LPC_SWM->PINENABLE0 &= ~(3<<4);
-
- LPC_SYSCON->SYSOSCCTRL = LPC8xx_SYSOSCCTRL;
- LPC_SYSCON->PDRUNCFG &= ~(1<<5); /* System oscillator ON. */
- for (i = 0; i<200; i++)
- __NOP(); /* Stabilization delay. */
-#endif
-
- /* CLKIN initialization.*/
-#if (LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_CLKIN)
- // switch off pull-up
- LPC_IOCON->PIO0_1 &= ~(3<<3);
-
- // enable clkin
- LPC_SWM->PINENABLE0 &= ~(1<<7);
-#endif
-
- /* Always set PLL clock source -
- PLL IN can be a main clock source */
- LPC_SYSCON->SYSPLLCLKSEL = LPC8xx_PLLCLK_SOURCE;
- LPC_SYSCON->SYSPLLCLKUEN = 1;
- while (!(LPC_SYSCON->SYSPLLCLKUEN & 0x01)); /* Wait Until Updated */
-
- /* PLL initialization.*/
-#if LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_PLLOUT
- LPC_SYSCON->SYSPLLCTRL = LPC8xx_SYSPLLCTRL_MSEL | LPC8xx_SYSPLLCTRL_PSEL;
- LPC_SYSCON->PDRUNCFG &= ~(1<<7); /* System PLL ON. */
- while (!(LPC_SYSCON->SYSPLLSTAT & 1)) /* Wait PLL lock. */
- ;
-#endif
-
-#if LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_WDGOSC
-#error "WatchDog Oscillator not configured! Dont use as main clock source"
- LPC_SYSCON->WDTOSCCTRL = ??;
- LPC_SYSCON->PDRUNCFG &= ~(1<<6); /* WDT OSC On */
- for (i = 0; i<200; i++)
- __NOP(); /* Stabilization delay. */
-#endif
-
- /* Flash wait states setting, the code takes care to not touch TBD bits.*/
- LPC_FLASHCTRL->FLASHCFG = (LPC_FLASHCTRL->FLASHCFG & ~1) |
- LPC8xx_FLASHCFG_FLASHTIM;
-
- /* ABH divider initialization. Set this **before** switching Main clock
- source to ensure AHB clock stays in spec */
- LPC_SYSCON->SYSAHBCLKDIV = LPC8xx_SYSABHCLK_DIV;
-
- /* Main clock source selection.*/
- LPC_SYSCON->MAINCLKSEL = LPC8xx_MAINCLK_SOURCE;
- LPC_SYSCON->MAINCLKUEN = 1;
- while (!(LPC_SYSCON->MAINCLKUEN & 1)); /* Wait switch completion. */
-
- /* Disable clocks to IOCON, SWM, FLASHREG & ROM. */
- LPC_SYSCON->SYSAHBCLKCTRL &= ~((1<<18)|(1<<7)|(1<<3)|(1<<1));
-
-}
-
-/** @} */
|