at91sam9x5.c revision 266277
1237742Simp/*- 2237742Simp * Copyright (c) 2005 Olivier Houchard. All rights reserved. 3237742Simp * Copyright (c) 2010 Greg Ansley. All rights reserved. 4237742Simp * Copyright (c) 2012 M. Warner Losh.. All rights reserved. 5237742Simp * 6237742Simp * Redistribution and use in source and binary forms, with or without 7237742Simp * modification, are permitted provided that the following conditions 8237742Simp * are met: 9237742Simp * 1. Redistributions of source code must retain the above copyright 10237742Simp * notice, this list of conditions and the following disclaimer. 11237742Simp * 2. Redistributions in binary form must reproduce the above copyright 12237742Simp * notice, this list of conditions and the following disclaimer in the 13237742Simp * documentation and/or other materials provided with the distribution. 14237742Simp * 15237742Simp * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16237742Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17237742Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18237742Simp * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 19237742Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20237742Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21237742Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22237742Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23237742Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24237742Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25237742Simp * SUCH DAMAGE. 26237742Simp */ 27237742Simp 28237742Simp#include <sys/cdefs.h> 29237742Simp__FBSDID("$FreeBSD: stable/10/sys/arm/at91/at91sam9x5.c 266277 2014-05-17 00:53:12Z ian $"); 30237742Simp 31237742Simp#include <sys/param.h> 32237742Simp#include <sys/systm.h> 33237742Simp#include <sys/bus.h> 34237742Simp#include <sys/kernel.h> 35237742Simp#include <sys/malloc.h> 36237742Simp#include <sys/module.h> 37237742Simp 38237742Simp#include <machine/bus.h> 39237742Simp 40237742Simp#include <arm/at91/at91var.h> 41238331Simp#include <arm/at91/at91reg.h> 42238376Simp#include <arm/at91/at91soc.h> 43237742Simp#include <arm/at91/at91_aicreg.h> 44238922Simp#include <arm/at91/at91sam9x5reg.h> 45238376Simp#include <arm/at91/at91_pitreg.h> 46237742Simp#include <arm/at91/at91_pmcreg.h> 47237742Simp#include <arm/at91/at91_pmcvar.h> 48238376Simp#include <arm/at91/at91_rstreg.h> 49237742Simp 50237742Simp/* 51237742Simp * Standard priority levels for the system. 0 is lowest and 7 is highest. 52237742Simp * These values are the ones Atmel uses for its Linux port 53237742Simp */ 54237742Simpstatic const int at91_irq_prio[32] = 55237742Simp{ 56237743Simp 7, /* Advanced Interrupt Controller (FIQ) */ 57237742Simp 7, /* System Peripherals */ 58237743Simp 1, /* Parallel IO Controller A and B */ 59237743Simp 1, /* Parallel IO Controller C and D */ 60237743Simp 4, /* Soft Modem */ 61237742Simp 5, /* USART 0 */ 62237742Simp 5, /* USART 1 */ 63237742Simp 5, /* USART 2 */ 64237743Simp 5, /* USART 3 */ 65237743Simp 6, /* Two-Wire Interface 0 */ 66237743Simp 6, /* Two-Wire Interface 1 */ 67237743Simp 6, /* Two-Wire Interface 2 */ 68237743Simp 0, /* Multimedia Card Interface 0 */ 69237742Simp 5, /* Serial Peripheral Interface 0 */ 70237742Simp 5, /* Serial Peripheral Interface 1 */ 71237743Simp 5, /* UART 0 */ 72237743Simp 5, /* UART 1 */ 73237743Simp 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */ 74237743Simp 0, /* Pulse Width Modulation Controller */ 75237743Simp 0, /* ADC Controller */ 76237743Simp 0, /* DMA Controller 0 */ 77237743Simp 0, /* DMA Controller 1 */ 78237743Simp 2, /* USB Host High Speed port */ 79237743Simp 2, /* USB Device High speed port */ 80237743Simp 3, /* Ethernet MAC 0 */ 81237743Simp 3, /* LDC Controller or Image Sensor Interface */ 82237743Simp 0, /* Multimedia Card Interface 1 */ 83237743Simp 3, /* Ethernet MAC 1 */ 84237743Simp 4, /* Synchronous Serial Interface */ 85237743Simp 4, /* CAN Controller 0 */ 86237743Simp 4, /* CAN Controller 1 */ 87237743Simp 0, /* Advanced Interrupt Controller (IRQ0) */ 88237742Simp}; 89237742Simp 90266087Sianstatic const uint32_t at91_pio_base[] = { 91266087Sian AT91SAM9X25_PIOA_BASE, 92266087Sian AT91SAM9X25_PIOB_BASE, 93266087Sian AT91SAM9X25_PIOC_BASE, 94266087Sian AT91SAM9X25_PIOD_BASE, 95266087Sian}; 96266087Sian 97237742Simp#define DEVICE(_name, _id, _unit) \ 98237742Simp { \ 99237742Simp _name, _unit, \ 100237742Simp AT91SAM9X25_ ## _id ##_BASE, \ 101237742Simp AT91SAM9X25_ ## _id ## _SIZE, \ 102237742Simp AT91SAM9X25_IRQ_ ## _id \ 103237742Simp } 104237742Simp 105237742Simpstatic const struct cpu_devs at91_devs[] = 106237742Simp{ 107266277Sian DEVICE("at91_aic", AIC, 0), 108237742Simp DEVICE("at91_pmc", PMC, 0), 109237742Simp DEVICE("at91_wdt", WDT, 0), 110237742Simp DEVICE("at91_rst", RSTC, 0), 111237742Simp DEVICE("at91_pit", PIT, 0), 112237742Simp DEVICE("at91_pio", PIOA, 0), 113237742Simp DEVICE("at91_pio", PIOB, 1), 114237742Simp DEVICE("at91_pio", PIOC, 2), 115237744Simp DEVICE("at91_pio", PIOD, 3), 116237742Simp DEVICE("at91_twi", TWI0, 0), 117237742Simp DEVICE("at91_twi", TWI1, 1), 118237742Simp DEVICE("at91_twi", TWI2, 2), 119237742Simp DEVICE("at91_mci", HSMCI0, 0), 120237742Simp DEVICE("at91_mci", HSMCI1, 1), 121237742Simp DEVICE("uart", DBGU, 0), 122237742Simp DEVICE("uart", USART0, 1), 123237742Simp DEVICE("uart", USART1, 2), 124237742Simp DEVICE("uart", USART2, 3), 125237742Simp DEVICE("uart", USART3, 4), 126237742Simp DEVICE("spi", SPI0, 0), 127237742Simp DEVICE("spi", SPI1, 1), 128237742Simp DEVICE("macb", EMAC0, 0), 129237742Simp DEVICE("macb", EMAC1, 0), 130237742Simp DEVICE("nand", NAND, 0), 131237742Simp DEVICE("ohci", OHCI, 0), 132237742Simp DEVICE("ehci", EHCI, 0), 133237742Simp { 0, 0, 0, 0, 0 } 134237742Simp}; 135237742Simp 136237742Simpstatic void 137238397Simpat91_clock_init(void) 138237742Simp{ 139237742Simp struct at91_pmc_clock *clk; 140237742Simp 141237742Simp /* Update USB device port clock info */ 142237742Simp clk = at91_pmc_clock_ref("udpck"); 143237742Simp clk->pmc_mask = PMC_SCER_UDP_SAM9; 144237742Simp at91_pmc_clock_deref(clk); 145237742Simp 146237742Simp /* Update USB host port clock info */ 147237742Simp clk = at91_pmc_clock_ref("uhpck"); 148237742Simp clk->pmc_mask = PMC_SCER_UHP_SAM9; 149237742Simp at91_pmc_clock_deref(clk); 150237742Simp 151237742Simp /* Each SOC has different PLL contraints */ 152237742Simp clk = at91_pmc_clock_ref("plla"); 153237742Simp clk->pll_min_in = SAM9X25_PLL_A_MIN_IN_FREQ; /* 2 MHz */ 154237742Simp clk->pll_max_in = SAM9X25_PLL_A_MAX_IN_FREQ; /* 32 MHz */ 155237742Simp clk->pll_min_out = SAM9X25_PLL_A_MIN_OUT_FREQ; /* 400 MHz */ 156237742Simp clk->pll_max_out = SAM9X25_PLL_A_MAX_OUT_FREQ; /* 800 MHz */ 157237742Simp clk->pll_mul_shift = SAM9X25_PLL_A_MUL_SHIFT; 158237742Simp clk->pll_mul_mask = SAM9X25_PLL_A_MUL_MASK; 159237742Simp clk->pll_div_shift = SAM9X25_PLL_A_DIV_SHIFT; 160237742Simp clk->pll_div_mask = SAM9X25_PLL_A_DIV_MASK; 161239190Simp clk->set_outb = at91_pmc_800mhz_plla_outb; 162237742Simp at91_pmc_clock_deref(clk); 163237742Simp 164237742Simp clk = at91_pmc_clock_ref("pllb"); 165237742Simp clk->pll_min_in = SAM9X25_PLL_B_MIN_IN_FREQ; /* 2 MHz */ 166237742Simp clk->pll_max_in = SAM9X25_PLL_B_MAX_IN_FREQ; /* 32 MHz */ 167237742Simp clk->pll_min_out = SAM9X25_PLL_B_MIN_OUT_FREQ; /* 30 MHz */ 168237742Simp clk->pll_max_out = SAM9X25_PLL_B_MAX_OUT_FREQ; /* 100 MHz */ 169237742Simp clk->pll_mul_shift = SAM9X25_PLL_B_MUL_SHIFT; 170237742Simp clk->pll_mul_mask = SAM9X25_PLL_B_MUL_MASK; 171237742Simp clk->pll_div_shift = SAM9X25_PLL_B_DIV_SHIFT; 172237742Simp clk->pll_div_mask = SAM9X25_PLL_B_DIV_MASK; 173239190Simp clk->set_outb = at91_pmc_800mhz_pllb_outb; 174237742Simp at91_pmc_clock_deref(clk); 175237742Simp} 176237742Simp 177238376Simpstatic struct at91_soc_data soc_data = { 178238376Simp .soc_delay = at91_pit_delay, 179238389Simp .soc_reset = at91_rst_cpu_reset, 180238397Simp .soc_clock_init = at91_clock_init, 181238389Simp .soc_irq_prio = at91_irq_prio, 182238397Simp .soc_children = at91_devs, 183266087Sian .soc_pio_base = at91_pio_base, 184266087Sian .soc_pio_count = nitems(at91_pio_base), 185238376Simp}; 186238376Simp 187238376SimpAT91_SOC_SUB(AT91_T_SAM9X5, AT91_ST_SAM9X25, &soc_data); 188