bsp.h

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/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 * Copyright (c) 2007 Ray Xu <rayx.cn@gmail.com>
 *
 * 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.
 *
 * 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.
 */
 
#ifndef LIBBSP_ARM_RTL22XX_BSP_H
#define LIBBSP_ARM_RTL22XX_BSP_H
 
#include <bspopts.h>
#include <bsp/default-initial-extension.h>
 
#include <rtems.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define BSP_FEATURE_IRQ_EXTENSION
 
#define CONFIG_ARM_CLK 60000000L
/* cclk=cco/(2*P) */
/* cco = cclk*2*P   */
 
#define LPC22xx_Fcclk   CONFIG_ARM_CLK
 
/* Fcco 156M~320Mhz*/
#define LPC22xx_Fcclk   CONFIG_ARM_CLK
#define LPC22xx_Fcco    LPC22xx_Fcclk * 4
#define LPC22xx_Fpclk   (LPC22xx_Fcclk /4) *1
 
 
 
#define Fcclk_MIN       10000000L
#define Fcclk_MAX       60000000L
 
#define Fcco_MIN            156000000L
#define Fcco_MAX            320000000L
 
#define PLLFEED_DATA1       0xAA
#define PLLFEED_DATA2       0x55
 
#define PLLCON_ENABLE_BIT   0
#define PLLCON_CONNECT_BIT  1
 
#define PLLSTAT_ENABLE_BIT  8
#define PLLSTAT_CONNECT_BIT 9
#define PLLSTAT_LOCK_BIT    10
 
#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
 
#define FOSC              11059200
#define FCCLK             FOSC<<2
 
#define Fosc    11059200
#define Fcclk   (Fosc << 2)
#define Fcco    (Fcclk <<2)
#define Fpclk   (Fcclk >>2) * 1
/* 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
 
#define TIMER_PRECISION   10
 
#define I2CSPEED          20000         // 20 Kbit/s
 
#define RXBUFSIZE         32
#define TXBUFSIZE         32
 
#define SPISPEED          1500000       // 1.5 Mbit/s
#define SPI_CS_PIN        P0_13
#define SPI_CS_PIN_FUNC   PINSEL0_bit.SPI_CS_PIN
 
//#define RTL22XX_FLASH_SIZE      (0x200000-RTL22XX_FLASH_BOOT)   // Total area of Flash region in words 8 bit
#define RTL22XX_FLASH_SIZE        (0x80000-RTL22XX_FLASH_BOOT)
//#define RTL22XX_FLASH_SIZE      (0x80000-RTL22XX_FLASH_BOOT)      // Total area of Flash region in words 8 bit
#define RTL22XX_FLASH_BEGIN       0x80000000
#define RTL22XX_FLASH_BASE        (RTL22XX_FLASH_BEGIN+RTL22XX_FLASH_BOOT)
 
#define SRAM_SIZE         0x100000
#define SRAM_BASE         0x81000000
 
#define CS8900A_BASE      0x82000000
#define RTL8019AS_BASE    0x82000000
 
struct rtems_bsdnet_ifconfig;
int cs8900_driver_attach (struct rtems_bsdnet_ifconfig *config,
                          int                          attaching);
 
#define RTEMS_BSP_NETWORK_DRIVER_NAME   "eth0"
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH cs8900_driver_attach
 
/*
 * Prototypes for methods used across file boundaries in the BSP.
 */
extern void  UART0_Ini(void);
 
#ifdef __cplusplus
}
#endif
 
#endif /* _BSP_H */