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/*-
* Copyright (c) 2005 Olivier Houchard. All rights reserved.
* Copyright (c) 2010 Greg Ansley. 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.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#define _ARM32_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <arm/at91/at91var.h>
#include <arm/at91/at91reg.h>
#include <arm/at91/at91rm92reg.h>
#include <arm/at91/at91_aicreg.h>
#include <arm/at91/at91_pmcreg.h>
#include <arm/at91/at91_streg.h>
#include <arm/at91/at91_pmcvar.h>
#include <arm/at91/at91soc.h>
/*
* Standard priority levels for the system. 0 is lowest and 7 is highest.
* These values are the ones Atmel uses for its Linux port, which differ
* a little form the ones that are in the standard distribution. Also,
* the ones marked with 'TWEEK' are different based on experience.
*/
static const int at91_irq_prio[32] =
{
7, /* Advanced Interrupt Controller (FIQ) */
7, /* System Peripherals */
1, /* Parallel IO Controller A */
1, /* Parallel IO Controller B */
1, /* Parallel IO Controller C */
1, /* Parallel IO Controller D */
5, /* USART 0 */
5, /* USART 1 */
5, /* USART 2 */
5, /* USART 3 */
0, /* Multimedia Card Interface */
2, /* USB Device Port */
4, /* Two-Wire Interface */ /* TWEEK */
5, /* Serial Peripheral Interface */
4, /* Serial Synchronous Controller 0 */
6, /* Serial Synchronous Controller 1 */ /* TWEEK */
4, /* Serial Synchronous Controller 2 */
0, /* Timer Counter 0 */
6, /* Timer Counter 1 */ /* TWEEK */
0, /* Timer Counter 2 */
0, /* Timer Counter 3 */
0, /* Timer Counter 4 */
0, /* Timer Counter 5 */
2, /* USB Host port */
3, /* Ethernet MAC */
0, /* Advanced Interrupt Controller (IRQ0) */
0, /* Advanced Interrupt Controller (IRQ1) */
0, /* Advanced Interrupt Controller (IRQ2) */
0, /* Advanced Interrupt Controller (IRQ3) */
0, /* Advanced Interrupt Controller (IRQ4) */
0, /* Advanced Interrupt Controller (IRQ5) */
0 /* Advanced Interrupt Controller (IRQ6) */
};
static const uint32_t at91_pio_base[] = {
AT91RM92_PIOA_BASE,
AT91RM92_PIOB_BASE,
AT91RM92_PIOC_BASE,
AT91RM92_PIOD_BASE,
};
#define DEVICE(_name, _id, _unit) \
{ \
_name, _unit, \
AT91RM92_ ## _id ##_BASE, \
AT91RM92_ ## _id ## _SIZE, \
AT91RM92_IRQ_ ## _id \
}
static const struct cpu_devs at91_devs[] =
{
DEVICE("at91_aic", AIC, 0),
DEVICE("at91_pmc", PMC, 0),
DEVICE("at91_st", ST, 0),
DEVICE("at91_pio", PIOA, 0),
DEVICE("at91_pio", PIOB, 1),
DEVICE("at91_pio", PIOC, 2),
DEVICE("at91_pio", PIOD, 3),
DEVICE("at91_rtc", RTC, 0),
DEVICE("at91_mci", MCI, 0),
DEVICE("at91_twi", TWI, 0),
DEVICE("at91_udp", UDP, 0),
DEVICE("ate", EMAC, 0),
DEVICE("at91_ssc", SSC0, 0),
DEVICE("at91_ssc", SSC1, 1),
DEVICE("at91_ssc", SSC2, 2),
DEVICE("spi", SPI, 0),
DEVICE("uart", DBGU, 0),
DEVICE("uart", USART0, 1),
DEVICE("uart", USART1, 2),
DEVICE("uart", USART2, 3),
DEVICE("uart", USART3, 4),
DEVICE("at91_mc", MC, 0),
DEVICE("at91_tc", TC0, 0),
DEVICE("at91_tc", TC1, 1),
DEVICE("ohci", OHCI, 0),
DEVICE("at91_cfata", CF, 0),
{ 0, 0, 0, 0, 0 }
};
static uint32_t
at91_pll_outb(int freq)
{
if (freq > 155000000)
return (0x0000);
else
return (0x8000);
}
#if 0
/* -- XXX are these needed? */
/* Disable all interrupts for RTC (0xe24 == RTC_IDR) */
bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xe24, 0xffffffff);
/* Disable all interrupts for the SDRAM controller */
bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xfa8, 0xffffffff);
#endif
static void
at91_clock_init(void)
{
struct at91_pmc_clock *clk;
/* Update USB device port clock info */
clk = at91_pmc_clock_ref("udpck");
clk->pmc_mask = PMC_SCER_UDP;
at91_pmc_clock_deref(clk);
/* Update USB host port clock info */
clk = at91_pmc_clock_ref("uhpck");
clk->pmc_mask = PMC_SCER_UHP;
at91_pmc_clock_deref(clk);
/* Each SOC has different PLL contraints */
clk = at91_pmc_clock_ref("plla");
clk->pll_min_in = RM9200_PLL_A_MIN_IN_FREQ; /* 1 MHz */
clk->pll_max_in = RM9200_PLL_A_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
clk->pll_max_out = RM9200_PLL_A_MAX_OUT_FREQ; /* 180 MHz */
clk->pll_mul_shift = RM9200_PLL_A_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_A_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_A_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_A_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
clk = at91_pmc_clock_ref("pllb");
clk->pll_min_in = RM9200_PLL_B_MIN_IN_FREQ; /* 100 KHz */
clk->pll_max_in = RM9200_PLL_B_MAX_IN_FREQ; /* 32 MHz */
clk->pll_min_out = RM9200_PLL_B_MIN_OUT_FREQ; /* 30 MHz */
clk->pll_max_out = RM9200_PLL_B_MAX_OUT_FREQ; /* 240 MHz */
clk->pll_mul_shift = RM9200_PLL_B_MUL_SHIFT;
clk->pll_mul_mask = RM9200_PLL_B_MUL_MASK;
clk->pll_div_shift = RM9200_PLL_B_DIV_SHIFT;
clk->pll_div_mask = RM9200_PLL_B_DIV_MASK;
clk->set_outb = at91_pll_outb;
at91_pmc_clock_deref(clk);
}
static struct at91_soc_data soc_data = {
.soc_delay = at91_st_delay,
.soc_reset = at91_st_cpu_reset,
.soc_clock_init = at91_clock_init,
.soc_irq_prio = at91_irq_prio,
.soc_children = at91_devs,
.soc_pio_base = at91_pio_base,
.soc_pio_count = nitems(at91_pio_base),
};
AT91_SOC(AT91_T_RM9200, &soc_data);
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