From 3ff9afd04851ec97d66d6833520b49dc18f35ea4 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Tue, 8 Dec 2009 08:47:14 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1389
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/LPC214x/hal_lld.c | 57 ++++++++++++++++++++++++++++++++++++++
 os/hal/platforms/LPC214x/hal_lld.h | 12 ++++++--
 2 files changed, 67 insertions(+), 2 deletions(-)

(limited to 'os/hal/platforms/LPC214x')

diff --git a/os/hal/platforms/LPC214x/hal_lld.c b/os/hal/platforms/LPC214x/hal_lld.c
index 09d5c639d..705a42498 100644
--- a/os/hal/platforms/LPC214x/hal_lld.c
+++ b/os/hal/platforms/LPC214x/hal_lld.c
@@ -56,6 +56,20 @@ const LPC214xFIOConfig pal_default_config =
 /* Low Level Driver interrupt handlers.                                      */
 /*===========================================================================*/
 
+/*
+ * Non-vectored IRQs handler, the default action can be overridden by
+ * redefining the @p LPC214x_NON_VECTORED_IRQ_HOOK() hook macro.
+ */
+static CH_IRQ_HANDLER(irq_handler) {
+
+  CH_IRQ_PROLOGUE();
+
+  LPC214x_NON_VECTORED_IRQ_HOOK();
+
+  VICVectAddr = 0;
+  CH_IRQ_EPILOGUE();
+}
+
 /*===========================================================================*/
 /* Low Level Driver exported functions.                                      */
 /*===========================================================================*/
@@ -65,6 +79,49 @@ const LPC214xFIOConfig pal_default_config =
  */
 void hal_lld_init(void) {
 
+  vic_init();
+  VICDefVectAddr = (IOREG32)irq_handler;
+
+}
+
+/**
+ * @brief LPC214x clocks and PLL initialization.
+ * @note All the involved constants come from the file @p board.h.
+ */
+void lpc214x_clock_init(void) {
+
+  /*
+   * All peripherals clock disabled by default in order to save power.
+   */
+  PCONP = PCRTC | PCTIM0;
+
+  /*
+   * MAM setup.
+   */
+  MAMTIM = 0x3;                 /* 3 cycles for flash accesses. */
+  MAMCR  = 0x2;                 /* MAM fully enabled. */
+
+  /*
+   * PLL setup for Fosc=12MHz and CCLK=48MHz.
+   * P=2 M=3.
+   */
+  PLL *pll = PLL0Base;
+  pll->PLL_CFG  = 0x23;         /* P and M values. */
+  pll->PLL_CON  = 0x1;          /* Enables the PLL 0. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+  while (!(pll->PLL_STAT & 0x400))
+    ;                           /* Wait for PLL lock. */
+
+  pll->PLL_CON  = 0x3;          /* Connects the PLL. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+
+  /*
+   * VPB setup.
+   * PCLK = CCLK / 4.
+   */
+  VPBDIV = VPD_D4;
 }
 
 /** @} */
diff --git a/os/hal/platforms/LPC214x/hal_lld.h b/os/hal/platforms/LPC214x/hal_lld.h
index 40345ec72..dcedb386c 100644
--- a/os/hal/platforms/LPC214x/hal_lld.h
+++ b/os/hal/platforms/LPC214x/hal_lld.h
@@ -31,13 +31,20 @@
 #include "vic.h"
 
 /*===========================================================================*/
-/* Driver pre-compile time settings.                                         */
+/* Driver constants.                                                         */
 /*===========================================================================*/
 
 /*===========================================================================*/
-/* Driver constants.                                                         */
+/* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
 
+/**
+ * @brief Default action for the non vectored IRQ handler, nothing.
+ */
+#if !defined(LPC214x_NON_VECTORED_IRQ_HOOK) || defined(__DOXYGEN__)
+#define LPC214x_NON_VECTORED_IRQ_HOOK()
+#endif
+
 /*===========================================================================*/
 /* Derived constants and error checks.                                       */
 /*===========================================================================*/
@@ -54,6 +61,7 @@
 extern "C" {
 #endif
   void hal_lld_init(void);
+  void lpc214x_clock_init(void);
 #ifdef __cplusplus
 }
 #endif
-- 
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