/*
 * Philips LPC22XX/LPC21xx BSP header file
 *
 * by Ray,Xu <Rayx.cn@gmail.com>
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
*/
#ifndef _BSP_H
#define _BSP_H

#ifdef __cplusplus
extern "C" {
#endif

#include <bspopts.h>
#include <bsp/default-initial-extension.h>

#define BSP_SMALL_MEMORY 1

#include <rtems.h>
#include <rtems/iosupp.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>

#define BSP_FEATURE_IRQ_EXTENSION

#define CONFIG_ARM_CLK 60000000L
/* cclk=cco/(2*P) */
/* cco = cclk*2*P 	*/

/* system clk frequecy,<=60Mhz, defined in system configuration */
#define	LPC22xx_Fcclk	CONFIG_ARM_CLK

/* Fcco 156M~320Mhz*/
/* system clk frequecy,<=60Mhz, defined in system configuration */
#define	LPC22xx_Fcclk	CONFIG_ARM_CLK
#define LPC22xx_Fcco	LPC22xx_Fcclk * 4
/*VPB clk frequency,1,1/2,1/4 times of Fcclk */
#define LPC22xx_Fpclk	(LPC22xx_Fcclk /4) *1



/* Fcclk range: 10MHz ~ MCU allowed frequency */
#define Fcclk_MIN	    10000000L
#define Fcclk_MAX	    60000000L

/* Fcco range: 156MHz ~ 320MHz */
#define Fcco_MIN            156000000L
#define Fcco_MAX            320000000L

#define PLLFEED_DATA1       0xAA
#define PLLFEED_DATA2       0x55

/* PLL PLLCON register bit descriptions */
#define PLLCON_ENABLE_BIT   0
#define PLLCON_CONNECT_BIT  1

/* PLL PLLSTAT register bit descriptions */
#define PLLSTAT_ENABLE_BIT  8
#define PLLSTAT_CONNECT_BIT 9
#define PLLSTAT_LOCK_BIT    10

/* PM Peripheral Type */
#define PC_TIMER0	    0x2
#define PC_TIMER1	    0x4
#define PC_UART0	    0x8
#define PC_UART1	    0x10
#define PC_PWM0		    0x20
#define PC_I2C		    0x80
#define PC_SPI0		    0x100
#define PC_RTC		    0x200

// OSC [Hz]
#define FOSC 	          11059200
// Core clk [Hz]
#define FCCLK	          FOSC<<2
/**
* help file
*/
/* System configure, Fosc Fcclk Fcco Fpclk must be defined*/
#define Fosc    11059200          // osc freq,10MHz~25MHz,
                                  //    change to real one if needed
#define Fcclk   (Fosc << 2)       //system freq 2^n time of  Fosc(1~32) <=60MHZ
#define Fcco    (Fcclk <<2)       //CCO freq 2,4,8,16 time of Fcclk 156MHz~320MHz
#define Fpclk   (Fcclk >>2) * 1   //VPB freq only(Fcclk / 4) 1~4
/* This was M.  That is a BAD BAD public constant.  I renamed it to
 * JOEL_M so it wouldn't conflict with user code.  If you can find
 * a better name, fix this.  But nothing I found uses it.
 */
#define JOEL_M       Fcclk / Fosc
#define P_min   Fcco_MIN / (2*Fcclk) + 1;
#define P_max   Fcco_MAX / (2*Fcclk);



#define  UART_BPS	115200

// Time Precision time [us]
#define TIMER_PRECISION   10

// I2C Speed [bit/s]
#define I2CSPEED          20000         // 20 Kbit/s

// Uarts buffers size
#define RXBUFSIZE         32
#define TXBUFSIZE         32

// SPI Speed [bit/s]
#define SPISPEED          1500000       // 1.5 Mbit/s
// SPI EEPROM CS pin (SSEL is not suitable for CS, because is used by SPI module for multi master SPI interface)
#define SPI_CS_PIN        P0_13
#define SPI_CS_PIN_FUNC   PINSEL0_bit.SPI_CS_PIN

// Flash definition
//#define FLASH_SIZE      (0x200000-FLASH_BOOT)   // Total area of Flash region in words 8 bit
#define FLASH_SIZE        (0x80000-FLASH_BOOT)   // Total area of Flash region in words 8 bit
//#define FLASH_SIZE      (0x80000-FLASH_BOOT)      // Total area of Flash region in words 8 bit
#define FLASH_BEGIN       0x80000000
#define FLASH_BASE        (FLASH_BEGIN+FLASH_BOOT)   //First 0x8000 bytes reserved for boot loader etc.

// SRAM definition
#define SRAM_SIZE         0x100000                  // Total area of Flash region in words 8 bit
#define SRAM_BASE         0x81000000                //First 0x8000 bytes reserved for boot loader etc.

// CS8900A definition
#define CS8900A_BASE      0x82000000
// RTL8019AS definition
#define RTL8019AS_BASE    0x82000000

struct rtems_bsdnet_ifconfig;
int cs8900_driver_attach (struct rtems_bsdnet_ifconfig *config,
                          int                          attaching);

/*
 * Network driver configuration
 */
#define RTEMS_BSP_NETWORK_DRIVER_NAME	"eth0"
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH	cs8900_driver_attach

#ifdef __cplusplus
}
#endif

#endif /* _BSP_H */