Included ARM LPC21xx related code from uLan project. The snapshot date is 2008-07-05

[lincan.git] / embedded / arch / arm / mach-lpc21xx / defines / lpcSCB.h

diff --git a/embedded/arch/arm/mach-lpc21xx/defines/lpcSCB.h b/embedded/arch/arm/mach-lpc21xx/defines/lpcSCB.h
new file mode 100644 (file)
index 0000000..5612a94
--- /dev/null
+++ b/embedded/arch/arm/mach-lpc21xx/defines/lpcSCB.h
@@ -0,0 +1,129 @@
+/******************************************************************************
+ *
+ * $RCSfile: lpcSCB.h,v $
+ * $Revision: 1.2 $
+ *
+ * Header file for Philips LPC ARM Processors.
+ * Copyright 2004 R O SoftWare
+ *
+ * No guarantees, warrantees, or promises, implied or otherwise.
+ * May be used for hobby or commercial purposes provided copyright
+ * notice remains intact.
+ *
+ *****************************************************************************/
+#ifndef INC_LPC_SCB_H
+#define INC_LPC_SCB_H
+
+// System Control Block Registers
+typedef struct
+{
+  // Memory Accelerator Module Registers (MAM)
+  struct
+    {
+    REG_8 cr;                           // Control Register
+    REG_8 _pad0[3];
+    REG_8 tim;                          // Timing Control Register
+    REG32 _pad1[14];
+    } mam;
+
+  // Memory Mapping Control Register
+  REG_8 memmap;
+  REG32 _pad0[15];
+
+  // Phase Locked Loop Registers (PLL)
+  struct
+    {
+    REG_8 con;                          // Control Register
+    REG_8 _pad0[3];
+    REG_8 cfg;                          // Configuration Register
+    REG_8 _pad1[3];
+    REG16 stat;                         // Status Register
+    REG16 _pad2;
+    REG_8 feed;                         // Feed Register
+    REG_8 _pad3[3];
+    REG32 _pad4[4];
+    } pll;
+
+  struct
+    {
+    REG_8 con;                          // Control Register
+    REG_8 _pad0[3];
+    REG_8 cfg;                          // Configuration Register
+    REG_8 _pad1[3];
+    REG16 stat;                         // Status Register
+    REG16 _pad2;
+    REG_8 feed;                         // Feed Register
+    REG_8 _pad3[3];
+    REG32 _pad4[4];
+    } pll48;
+
+  // Power Control Registers
+  struct
+    {
+    REG_8 con;                          // Control Register
+    REG_8 _pad0[3];
+    REG32 conp;                         // Peripherals Register
+    REG32 _pad1[14];
+    } p;
+
+  // VPB Divider Register
+  REG_8 vpbdiv;
+  REG32 _pad1[15];
+
+  // External Interrupt Registers
+  struct
+    {
+    REG_8 flag;                         // Flag Register
+    REG_8 _pad0[3];
+    REG_8 wake;                         // Wakeup Register
+    REG_8 _pad1[3];
+    REG_8 mode;                         // Mode Register
+    REG_8 _pad2[3];
+    REG_8 polar;                        // Polarity Register
+    REG32 _pad3[12];
+    } ext;
+} scbRegs_t;
+
+
+///////////////////////////////////////////////////////////////////////////////
+// MAM defines
+#define MAMCR_OFF     0
+#define MAMCR_PART    1
+#define MAMCR_FULL    2
+
+#define MAMTIM_CYCLES (((CCLK) + 19999999) / 20000000)
+
+///////////////////////////////////////////////////////////////////////////////
+// MEMMAP defines
+#define MEMMAP_BBLK   0                 // Interrupt Vectors in Boot Block
+#define MEMMAP_FLASH  1                 // Interrupt Vectors in Flash
+#define MEMMAP_SRAM   2                 // Interrupt Vectors in SRAM
+
+///////////////////////////////////////////////////////////////////////////////
+// PLL defines & computations
+// Compute the value of PLL_DIV and test range validity
+// FOSC & PLL_MUL should be defined in project configuration file (config.h)
+#ifndef CCLK
+#define CCLK          (FOSC * PLL_MUL)  // CPU Clock Freq.
+#endif
+
+#define FCCO_MAX      (320000000)       // Max CC Osc Freq.
+#define PLL_DIV       (FCCO_MAX / (2 * CCLK)) // PLL Divider
+#define FCCO          (FOSC * PLL_MUL * 2 * PLL_DIV) // CC Osc. Freq.
+
+// PLLCON Register Bit Definitions
+#define PLLCON_PLLE   (1 << 0)          // PLL Enable
+#define PLLCON_PLLC   (1 << 1)          // PLL Connect
+
+// PLLCFG Register Bit Definitions
+#define PLLCFG_MSEL   ((PLL_MUL - 1) << 0) // PLL Multiplier
+#define PLLCFG_PSEL   ((PLL_DIV - 1) << 5) // PLL Divider
+
+// PLLSTAT Register Bit Definitions
+#define PLLSTAT_LOCK  (1 << 10)         // PLL Lock Status Bit
+
+///////////////////////////////////////////////////////////////////////////////
+// VPBDIV defines & computations
+#define VPBDIV_VALUE  (PBSD & 0x03)     // VPBDIV value
+
+#endif