Permalink
Find file
Fetching contributors…
Cannot retrieve contributors at this time
298 lines (253 sloc) 8.43 KB
/*! \page License
* Copyright (C) 2009, H&D Wireless AB All rights reserved.
*
* 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.
*
* 3. The name of H&D Wireless AB may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY H&D WIRELESS AB ``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 EXPRESSLY AND
* SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
*/
#include <pm.h>
#include <flashc.h>
#include <intc.h>
#include <board.h>
#include <gpio.h>
#ifdef WITH_SDRAM
#include <sdramc.h>
#endif
#include <board_init.h>
#include <spi.h>
#ifndef NO_SERIAL /* The bootloader does not want serial port
* code */
#include <usart.h>
int board_putchar(char c)
{
int timeout = USART_DEFAULT_TIMEOUT;
if (c == '\n') {
do {
if (!timeout--)
return USART_FAILURE;
} while (usart_write_char(&CONFIG_CONSOLE_PORT, '\r') !=
USART_SUCCESS);
timeout = USART_DEFAULT_TIMEOUT;
}
do {
if (!timeout--)
return USART_FAILURE;
} while (usart_write_char(&CONFIG_CONSOLE_PORT, c) != USART_SUCCESS);
return USART_SUCCESS;
}
#endif /* NO_SERIAL */
/**
* Initializes the MCU system clocks.
*/
static void
init_sys_clocks(void)
{
/* if we don't run on OSC0 don't switch to it since we don't know
* what kind of oscillator we have here
*/
#if OSC == 0
/* switch to OSC0 to speed up the booting */
pm_switch_to_osc0(&AVR32_PM, FOSC0, OSC0_STARTUP);
#endif
#ifndef USE_PLL
return;
#endif
/* For audio, ee have to use OSC1 on to generate the correct clockrate
* for the SSC
*/
#if OSC == 1
/* start oscillator1 */
pm_enable_osc1_crystal(&AVR32_PM, FOSC1);
pm_enable_clk1(&AVR32_PM, OSC1_STARTUP);
#endif
/* configure pll multipliers */
pm_pll_setup(&AVR32_PM,
0, /* pll */
PLL_MUL, /* mul */
1, /* div */
OSC, /* osc */
16); /* lockcount */
/* set PLL operating range and divider (fpll = fvco/2)
* this gives PLL output = 66 MHz (62.0928 MHz for EVK1105/OSC1)
*/
pm_pll_set_option(&AVR32_PM,
0, /* pll */
1, /* pll_freq */
1, /* pll_div2 */
0); /* pll_wbwdisable. */
/* start PLL0 and wait for the lock */
pm_pll_enable(&AVR32_PM, 0);
pm_wait_for_pll0_locked(&AVR32_PM);
/* Set all peripheral clocks torun at master clock rate */
pm_cksel(&AVR32_PM,
0, /* pbadiv */
0, /* pbasel */
0, /* pbbdiv */
0, /* pbbsel */
0, /* hsbdiv */
0); /* hsbsel */
/* Set one waitstate for the flash */
flashc_set_wait_state(1);
/* Switch to PLL0 as the master clock */
pm_switch_to_clock(&AVR32_PM, AVR32_PM_MCCTRL_MCSEL_PLL0);
}
static void init_exceptions(void)
{
extern void _evba;
Set_system_register(AVR32_EVBA, (int)&_evba);
Enable_global_exception();
}
static void init_hmatrix(void)
{
union {
unsigned long scfg;
avr32_hmatrix_scfg_t SCFG;
} u_avr32_hmatrix_scfg = {
AVR32_HMATRIX.scfg[AVR32_HMATRIX_SLAVE_FLASH]
};
u_avr32_hmatrix_scfg.SCFG.defmstr_type =
AVR32_HMATRIX_DEFMSTR_TYPE_LAST_DEFAULT;
AVR32_HMATRIX.scfg[AVR32_HMATRIX_SLAVE_FLASH] =
u_avr32_hmatrix_scfg.scfg;
}
static void init_interrupts(void)
{
INTC_init_interrupts();
Enable_global_interrupt();
}
static void init_spi(void)
{
#if defined(WL_SPI)
int i;
#endif
#if defined(AT45DBX_SPI)
static const gpio_map_t AT45DBX_SPI_GPIO_MAP = {
{ AT45DBX_SPI_SCK_PIN, AT45DBX_SPI_SCK_FUNCTION },
{ AT45DBX_SPI_MISO_PIN, AT45DBX_SPI_MISO_FUNCTION },
{ AT45DBX_SPI_MOSI_PIN, AT45DBX_SPI_MOSI_FUNCTION },
{ AT45DBX_SPI_NPCS2_PIN, AT45DBX_SPI_NPCS2_FUNCTION },
};
#endif
#if defined(WL_SPI)
const gpio_map_t WL_SPI_GPIO_MAP = {
#if defined(WL_SPI_NPCS0)
WL_SPI_NPCS0,
#endif
WL_SPI_NPCS, WL_SPI_MISO, WL_SPI_MOSI, WL_SPI_SCK
};
#endif
#if defined(WL_SPI) || defined(AT45DBX_SPI)
spi_options_t spiOptions = {
.modfdis = 1 /* only param used by spi_initMaster() */
};
#endif
#if defined(AT45DBX_SPI)
gpio_enable_module(AT45DBX_SPI_GPIO_MAP,
sizeof(AT45DBX_SPI_GPIO_MAP) /
sizeof(AT45DBX_SPI_GPIO_MAP[0]));
spi_initMaster(AT45DBX_SPI, &spiOptions);
spi_selectionMode(AT45DBX_SPI, 0, 0, 0);
#endif
#if defined(WL_SPI)
/* same pins might be initialized twice here */
gpio_enable_module(WL_SPI_GPIO_MAP,
sizeof(WL_SPI_GPIO_MAP) /
sizeof(WL_SPI_GPIO_MAP[0]));
for (i = 0; i < sizeof(WL_SPI_GPIO_MAP)/sizeof(WL_SPI_GPIO_MAP[0]); i++)
gpio_enable_pin_pull_up(WL_SPI_GPIO_MAP[i].pin);
/* same SPI controller might be initialized again */
spi_initMaster(&WL_SPI, &spiOptions);
spi_selectionMode(&WL_SPI, 0, 0, 0);
#endif
#if defined(AT45DBX_SPI)
spi_enable(AT45DBX_SPI);
/* put up flash reset pin */
gpio_set_gpio_pin(AT45DBX_CHIP_RESET);
#endif
#if defined(WL_SPI)
spi_enable(&WL_SPI);
#endif
}
static void init_rs232(void)
{
#ifndef NO_SERIAL
#if defined(BOARD_RS232_0)
const gpio_map_t BOARD_RS232_0_GPIO_MAP = {
BOARD_RS232_0_TX,
BOARD_RS232_0_RX,
#if defined(BOARD_RS232_0_RTS) && defined (BOARD_RS232_0_CTS)
BOARD_RS232_0_RTS,
BOARD_RS232_0_CTS
#endif
};
#endif
#if defined(BOARD_RS232_1)
const gpio_map_t BOARD_RS232_1_GPIO_MAP = {
BOARD_RS232_1_TX,
BOARD_RS232_1_RX
#if defined(BOARD_RS232_1_RTS) && defined (BOARD_RS232_1_CTS)
BOARD_RS232_1_RTS,
BOARD_RS232_1_CTS
#endif
};
#endif
#if defined(BOARD_RS232_0)
gpio_enable_module(BOARD_RS232_0_GPIO_MAP,
sizeof(BOARD_RS232_0_GPIO_MAP) /
sizeof(BOARD_RS232_0_GPIO_MAP[0]));
#endif
#if defined(BOARD_RS232_1)
gpio_enable_module(BOARD_RS232_1_GPIO_MAP,
sizeof(BOARD_RS232_1_GPIO_MAP) /
sizeof(BOARD_RS232_1_GPIO_MAP[0]));
#endif
#endif /* NO_SERIAL */
}
static void init_printk(void)
{
#ifndef NO_SERIAL
#if defined(CONFIG_CONSOLE_PORT)
const usart_options_t usart_options = {
.baudrate = 57600,
.charlength = 8,
.paritytype = USART_NO_PARITY,
.stopbits = USART_1_STOPBIT,
.channelmode = USART_NORMAL_CHMODE
};
usart_init_rs232(&CONFIG_CONSOLE_PORT, &usart_options, FPBA_HZ);
#endif
#endif /* NO_SERIAL */
}
void board_init(void)
{
init_exceptions();
init_hmatrix();
init_sys_clocks();
init_interrupts();
init_rs232();
init_printk();
#ifdef WITH_SDRAM
sdramc_init(FHSB_HZ);
#endif
init_spi();
}