at91sam9x5.c revision 238389
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: head/sys/arm/at91/at91sam9x25.c 238389 2012-07-12 02:58:45Z imp $"); 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> 44237742Simp#include <arm/at91/at91sam9x25reg.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 50237742Simpstruct at91sam9x25_softc { 51237742Simp device_t dev; 52237742Simp bus_space_tag_t sc_st; 53237742Simp bus_space_handle_t sc_sh; 54237742Simp}; 55237742Simp 56237742Simp/* 57237742Simp * Standard priority levels for the system. 0 is lowest and 7 is highest. 58237742Simp * These values are the ones Atmel uses for its Linux port 59237742Simp */ 60237742Simpstatic const int at91_irq_prio[32] = 61237742Simp{ 62237743Simp 7, /* Advanced Interrupt Controller (FIQ) */ 63237742Simp 7, /* System Peripherals */ 64237743Simp 1, /* Parallel IO Controller A and B */ 65237743Simp 1, /* Parallel IO Controller C and D */ 66237743Simp 4, /* Soft Modem */ 67237742Simp 5, /* USART 0 */ 68237742Simp 5, /* USART 1 */ 69237742Simp 5, /* USART 2 */ 70237743Simp 5, /* USART 3 */ 71237743Simp 6, /* Two-Wire Interface 0 */ 72237743Simp 6, /* Two-Wire Interface 1 */ 73237743Simp 6, /* Two-Wire Interface 2 */ 74237743Simp 0, /* Multimedia Card Interface 0 */ 75237742Simp 5, /* Serial Peripheral Interface 0 */ 76237742Simp 5, /* Serial Peripheral Interface 1 */ 77237743Simp 5, /* UART 0 */ 78237743Simp 5, /* UART 1 */ 79237743Simp 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */ 80237743Simp 0, /* Pulse Width Modulation Controller */ 81237743Simp 0, /* ADC Controller */ 82237743Simp 0, /* DMA Controller 0 */ 83237743Simp 0, /* DMA Controller 1 */ 84237743Simp 2, /* USB Host High Speed port */ 85237743Simp 2, /* USB Device High speed port */ 86237743Simp 3, /* Ethernet MAC 0 */ 87237743Simp 3, /* LDC Controller or Image Sensor Interface */ 88237743Simp 0, /* Multimedia Card Interface 1 */ 89237743Simp 3, /* Ethernet MAC 1 */ 90237743Simp 4, /* Synchronous Serial Interface */ 91237743Simp 4, /* CAN Controller 0 */ 92237743Simp 4, /* CAN Controller 1 */ 93237743Simp 0, /* Advanced Interrupt Controller (IRQ0) */ 94237742Simp}; 95237742Simp 96237742Simp#define DEVICE(_name, _id, _unit) \ 97237742Simp { \ 98237742Simp _name, _unit, \ 99237742Simp AT91SAM9X25_ ## _id ##_BASE, \ 100237742Simp AT91SAM9X25_ ## _id ## _SIZE, \ 101237742Simp AT91SAM9X25_IRQ_ ## _id \ 102237742Simp } 103237742Simp 104237742Simpstatic const struct cpu_devs at91_devs[] = 105237742Simp{ 106237742Simp DEVICE("at91_pmc", PMC, 0), 107237742Simp DEVICE("at91_wdt", WDT, 0), 108237742Simp DEVICE("at91_rst", RSTC, 0), 109237742Simp DEVICE("at91_pit", PIT, 0), 110237742Simp DEVICE("at91_pio", PIOA, 0), 111237742Simp DEVICE("at91_pio", PIOB, 1), 112237742Simp DEVICE("at91_pio", PIOC, 2), 113237744Simp DEVICE("at91_pio", PIOD, 3), 114237742Simp DEVICE("at91_twi", TWI0, 0), 115237742Simp DEVICE("at91_twi", TWI1, 1), 116237742Simp DEVICE("at91_twi", TWI2, 2), 117237742Simp DEVICE("at91_mci", HSMCI0, 0), 118237742Simp DEVICE("at91_mci", HSMCI1, 1), 119237742Simp DEVICE("uart", DBGU, 0), 120237742Simp DEVICE("uart", USART0, 1), 121237742Simp DEVICE("uart", USART1, 2), 122237742Simp DEVICE("uart", USART2, 3), 123237742Simp DEVICE("uart", USART3, 4), 124237742Simp DEVICE("spi", SPI0, 0), 125237742Simp DEVICE("spi", SPI1, 1), 126237742Simp DEVICE("macb", EMAC0, 0), 127237742Simp DEVICE("macb", EMAC1, 0), 128237742Simp DEVICE("nand", NAND, 0), 129237742Simp DEVICE("ohci", OHCI, 0), 130237742Simp DEVICE("ehci", EHCI, 0), 131237742Simp { 0, 0, 0, 0, 0 } 132237742Simp}; 133237742Simp 134237742Simpstatic void 135237742Simpat91_cpu_add_builtin_children(device_t dev) 136237742Simp{ 137237742Simp int i; 138237742Simp const struct cpu_devs *walker; 139237742Simp 140237742Simp for (i = 1, walker = at91_devs; walker->name; i++, walker++) { 141237742Simp at91_add_child(dev, i, walker->name, walker->unit, 142237742Simp walker->mem_base, walker->mem_len, walker->irq0, 143237742Simp walker->irq1, walker->irq2); 144237742Simp } 145237742Simp} 146237742Simp 147237742Simpstatic uint32_t 148237742Simpat91_pll_outa(int freq) 149237742Simp{ 150237742Simp 151237742Simp switch (freq / 10000000) { 152237742Simp case 747 ... 801: return ((1 << 29) | (0 << 14)); 153237742Simp case 697 ... 746: return ((1 << 29) | (1 << 14)); 154237742Simp case 647 ... 696: return ((1 << 29) | (2 << 14)); 155237742Simp case 597 ... 646: return ((1 << 29) | (3 << 14)); 156237742Simp case 547 ... 596: return ((1 << 29) | (1 << 14)); 157237742Simp case 497 ... 546: return ((1 << 29) | (2 << 14)); 158237742Simp case 447 ... 496: return ((1 << 29) | (3 << 14)); 159237742Simp case 397 ... 446: return ((1 << 29) | (4 << 14)); 160237742Simp default: return (1 << 29); 161237742Simp } 162237742Simp} 163237742Simp 164237742Simpstatic uint32_t 165237742Simpat91_pll_outb(int freq) 166237742Simp{ 167237742Simp 168237742Simp return (0); 169237742Simp} 170237742Simp 171237742Simpstatic void 172237742Simpat91_identify(driver_t *drv, device_t parent) 173237742Simp{ 174237742Simp 175238376Simp if (soc_info.type == AT91_T_SAM9X5 && soc_info.subtype == AT91_ST_SAM9X25) { 176237742Simp at91_add_child(parent, 0, "at91sam9x25", 0, 0, 0, -1, 0, 0); 177237742Simp at91_cpu_add_builtin_children(parent); 178237742Simp } 179237742Simp} 180237742Simp 181237742Simpstatic int 182237742Simpat91_probe(device_t dev) 183237742Simp{ 184237742Simp 185237742Simp device_set_desc(dev, "AT91SAM9X25"); 186237742Simp return (0); 187237742Simp} 188237742Simp 189237742Simpstatic int 190237742Simpat91_attach(device_t dev) 191237742Simp{ 192237742Simp struct at91_pmc_clock *clk; 193237742Simp struct at91sam9x25_softc *sc = device_get_softc(dev); 194237742Simp struct at91_softc *at91sc = device_get_softc(device_get_parent(dev)); 195237742Simp 196237742Simp sc->sc_st = at91sc->sc_st; 197237742Simp sc->sc_sh = at91sc->sc_sh; 198237742Simp sc->dev = dev; 199237742Simp 200237742Simp /* Update USB device port clock info */ 201237742Simp clk = at91_pmc_clock_ref("udpck"); 202237742Simp clk->pmc_mask = PMC_SCER_UDP_SAM9; 203237742Simp at91_pmc_clock_deref(clk); 204237742Simp 205237742Simp /* Update USB host port clock info */ 206237742Simp clk = at91_pmc_clock_ref("uhpck"); 207237742Simp clk->pmc_mask = PMC_SCER_UHP_SAM9; 208237742Simp at91_pmc_clock_deref(clk); 209237742Simp 210237742Simp /* Each SOC has different PLL contraints */ 211237742Simp clk = at91_pmc_clock_ref("plla"); 212237742Simp clk->pll_min_in = SAM9X25_PLL_A_MIN_IN_FREQ; /* 2 MHz */ 213237742Simp clk->pll_max_in = SAM9X25_PLL_A_MAX_IN_FREQ; /* 32 MHz */ 214237742Simp clk->pll_min_out = SAM9X25_PLL_A_MIN_OUT_FREQ; /* 400 MHz */ 215237742Simp clk->pll_max_out = SAM9X25_PLL_A_MAX_OUT_FREQ; /* 800 MHz */ 216237742Simp clk->pll_mul_shift = SAM9X25_PLL_A_MUL_SHIFT; 217237742Simp clk->pll_mul_mask = SAM9X25_PLL_A_MUL_MASK; 218237742Simp clk->pll_div_shift = SAM9X25_PLL_A_DIV_SHIFT; 219237742Simp clk->pll_div_mask = SAM9X25_PLL_A_DIV_MASK; 220237742Simp clk->set_outb = at91_pll_outa; 221237742Simp at91_pmc_clock_deref(clk); 222237742Simp 223237742Simp clk = at91_pmc_clock_ref("pllb"); 224237742Simp clk->pll_min_in = SAM9X25_PLL_B_MIN_IN_FREQ; /* 2 MHz */ 225237742Simp clk->pll_max_in = SAM9X25_PLL_B_MAX_IN_FREQ; /* 32 MHz */ 226237742Simp clk->pll_min_out = SAM9X25_PLL_B_MIN_OUT_FREQ; /* 30 MHz */ 227237742Simp clk->pll_max_out = SAM9X25_PLL_B_MAX_OUT_FREQ; /* 100 MHz */ 228237742Simp clk->pll_mul_shift = SAM9X25_PLL_B_MUL_SHIFT; 229237742Simp clk->pll_mul_mask = SAM9X25_PLL_B_MUL_MASK; 230237742Simp clk->pll_div_shift = SAM9X25_PLL_B_DIV_SHIFT; 231237742Simp clk->pll_div_mask = SAM9X25_PLL_B_DIV_MASK; 232237742Simp clk->set_outb = at91_pll_outb; 233237742Simp at91_pmc_clock_deref(clk); 234237742Simp return (0); 235237742Simp} 236237742Simp 237237742Simpstatic device_method_t at91sam9x25_methods[] = { 238237742Simp DEVMETHOD(device_probe, at91_probe), 239237742Simp DEVMETHOD(device_attach, at91_attach), 240237742Simp DEVMETHOD(device_identify, at91_identify), 241237742Simp {0, 0}, 242237742Simp}; 243237742Simp 244237742Simpstatic driver_t at91sam9x25_driver = { 245237742Simp "at91sam9x25", 246237742Simp at91sam9x25_methods, 247237742Simp sizeof(struct at91sam9x25_softc), 248237742Simp}; 249237742Simp 250237742Simpstatic devclass_t at91sam9x25_devclass; 251237742Simp 252237742SimpDRIVER_MODULE(at91sam9x25, atmelarm, at91sam9x25_driver, at91sam9x25_devclass, 0, 0); 253238376Simp 254238376Simpstatic struct at91_soc_data soc_data = { 255238376Simp .soc_delay = at91_pit_delay, 256238389Simp .soc_reset = at91_rst_cpu_reset, 257238389Simp .soc_irq_prio = at91_irq_prio, 258238376Simp}; 259238376Simp 260238376SimpAT91_SOC_SUB(AT91_T_SAM9X5, AT91_ST_SAM9X25, &soc_data); 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