1d4c34376a
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
220 lines
6.6 KiB
C
220 lines
6.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* 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/at91soc.h>
|
|
#include <arm/at91/at91_aicreg.h>
|
|
#include <arm/at91/at91sam9260reg.h>
|
|
#include <arm/at91/at91_pitreg.h>
|
|
#include <arm/at91/at91_pmcreg.h>
|
|
#include <arm/at91/at91_pmcvar.h>
|
|
#include <arm/at91/at91_rstreg.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
|
|
*/
|
|
static const int at91_irq_prio[32] =
|
|
{
|
|
7, /* Advanced Interrupt Controller */
|
|
7, /* System Peripherals */
|
|
1, /* Parallel IO Controller A */
|
|
1, /* Parallel IO Controller B */
|
|
1, /* Parallel IO Controller C */
|
|
0, /* Analog-to-Digital Converter */
|
|
5, /* USART 0 */
|
|
5, /* USART 1 */
|
|
5, /* USART 2 */
|
|
0, /* Multimedia Card Interface */
|
|
2, /* USB Device Port */
|
|
6, /* Two-Wire Interface */
|
|
5, /* Serial Peripheral Interface 0 */
|
|
5, /* Serial Peripheral Interface 1 */
|
|
5, /* Serial Synchronous Controller */
|
|
0, /* (reserved) */
|
|
0, /* (reserved) */
|
|
0, /* Timer Counter 0 */
|
|
0, /* Timer Counter 1 */
|
|
0, /* Timer Counter 2 */
|
|
2, /* USB Host port */
|
|
3, /* Ethernet */
|
|
0, /* Image Sensor Interface */
|
|
5, /* USART 3 */
|
|
5, /* USART 4 */
|
|
5, /* USART 5 */
|
|
0, /* Timer Counter 3 */
|
|
0, /* Timer Counter 4 */
|
|
0, /* Timer Counter 5 */
|
|
0, /* Advanced Interrupt Controller IRQ0 */
|
|
0, /* Advanced Interrupt Controller IRQ1 */
|
|
0, /* Advanced Interrupt Controller IRQ2 */
|
|
};
|
|
|
|
static const uint32_t at91_pio_base[] = {
|
|
AT91SAM9260_PIOA_BASE,
|
|
AT91SAM9260_PIOB_BASE,
|
|
AT91SAM9260_PIOC_BASE,
|
|
};
|
|
|
|
#define DEVICE(_name, _id, _unit) \
|
|
{ \
|
|
_name, _unit, \
|
|
AT91SAM9260_ ## _id ##_BASE, \
|
|
AT91SAM9260_ ## _id ## _SIZE, \
|
|
AT91SAM9260_IRQ_ ## _id \
|
|
}
|
|
|
|
static const struct cpu_devs at91_devs[] =
|
|
{
|
|
DEVICE("at91_aic", AIC, 0),
|
|
DEVICE("at91_pmc", PMC, 0),
|
|
DEVICE("at91_wdt", WDT, 0),
|
|
DEVICE("at91_rst", RSTC, 0),
|
|
DEVICE("at91_pit", PIT, 0),
|
|
DEVICE("at91_pio", PIOA, 0),
|
|
DEVICE("at91_pio", PIOB, 1),
|
|
DEVICE("at91_pio", PIOC, 2),
|
|
DEVICE("at91_twi", TWI, 0),
|
|
DEVICE("at91_mci", MCI, 0),
|
|
DEVICE("uart", DBGU, 0),
|
|
DEVICE("uart", USART0, 1),
|
|
DEVICE("uart", USART1, 2),
|
|
DEVICE("uart", USART2, 3),
|
|
DEVICE("uart", USART3, 4),
|
|
DEVICE("uart", USART4, 5),
|
|
DEVICE("uart", USART5, 6),
|
|
DEVICE("spi", SPI0, 0),
|
|
DEVICE("spi", SPI1, 1),
|
|
DEVICE("ate", EMAC, 0),
|
|
DEVICE("macb", EMAC, 0),
|
|
DEVICE("nand", NAND, 0),
|
|
DEVICE("ohci", OHCI, 0),
|
|
{ 0, 0, 0, 0, 0 }
|
|
};
|
|
|
|
/*
|
|
* The following is unused currently since we don't ever set the PLLA
|
|
* frequency of the device.
|
|
*/
|
|
static uint32_t
|
|
at91_pll_outa(int freq)
|
|
{
|
|
uint32_t outa = 0;
|
|
|
|
/*
|
|
* Set OUTA, per the data sheet. See Table 40-15 titled
|
|
* PLLA Characteristics in the SAM9260 doc.
|
|
*/
|
|
|
|
if (freq > 155000000)
|
|
outa = 2 << 14;
|
|
return ((1 << 29) | outa);
|
|
}
|
|
|
|
static uint32_t
|
|
at91_pll_outb(int freq)
|
|
{
|
|
|
|
return (1 << 14);
|
|
}
|
|
|
|
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_SAM9;
|
|
at91_pmc_clock_deref(clk);
|
|
|
|
/* Update USB host port clock info */
|
|
clk = at91_pmc_clock_ref("uhpck");
|
|
clk->pmc_mask = PMC_SCER_UHP_SAM9;
|
|
at91_pmc_clock_deref(clk);
|
|
|
|
/* Each SOC has different PLL contraints */
|
|
clk = at91_pmc_clock_ref("plla");
|
|
clk->pll_min_in = SAM9260_PLL_A_MIN_IN_FREQ; /* 1 MHz */
|
|
clk->pll_max_in = SAM9260_PLL_A_MAX_IN_FREQ; /* 32 MHz */
|
|
clk->pll_min_out = SAM9260_PLL_A_MIN_OUT_FREQ; /* 80 MHz */
|
|
clk->pll_max_out = SAM9260_PLL_A_MAX_OUT_FREQ; /* 240 MHz */
|
|
clk->pll_mul_shift = SAM9260_PLL_A_MUL_SHIFT;
|
|
clk->pll_mul_mask = SAM9260_PLL_A_MUL_MASK;
|
|
clk->pll_div_shift = SAM9260_PLL_A_DIV_SHIFT;
|
|
clk->pll_div_mask = SAM9260_PLL_A_DIV_MASK;
|
|
clk->set_outb = at91_pll_outa;
|
|
at91_pmc_clock_deref(clk);
|
|
|
|
/*
|
|
* Fudge MAX pll in frequence down below 3.0 MHz to ensure
|
|
* PMC alogrithm choose the divisor that causes the input clock
|
|
* to be near the optimal 2 MHz per datasheet. We know
|
|
* we are going to be using this for the USB clock at 96 MHz.
|
|
* Causes no extra frequency deviation for all recommended crystal
|
|
* values. See Note 1, table 40-16 SAM9260 doc.
|
|
*/
|
|
clk = at91_pmc_clock_ref("pllb");
|
|
clk->pll_min_in = SAM9260_PLL_B_MIN_IN_FREQ; /* 1 MHz */
|
|
clk->pll_max_in = 2999999; /* ~3 MHz */
|
|
clk->pll_min_out = SAM9260_PLL_B_MIN_OUT_FREQ; /* 70 MHz */
|
|
clk->pll_max_out = SAM9260_PLL_B_MAX_OUT_FREQ; /* 130 MHz */
|
|
clk->pll_mul_shift = SAM9260_PLL_B_MUL_SHIFT;
|
|
clk->pll_mul_mask = SAM9260_PLL_B_MUL_MASK;
|
|
clk->pll_div_shift = SAM9260_PLL_B_DIV_SHIFT;
|
|
clk->pll_div_mask = SAM9260_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_pit_delay,
|
|
.soc_reset = at91_rst_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_SAM9260, &soc_data);
|