496 lines
14 KiB
C
496 lines
14 KiB
C
/*
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* On-Chip devices setup code for the SAMA5D4 family
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*
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* Copyright (C) 2014 Atmel Corporation.
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* Bo Shen <voice.shen@atmel.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <common.h>
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#include <init.h>
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#include <linux/sizes.h>
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#include <gpio.h>
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#include <asm/armlinux.h>
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#include <mach/hardware.h>
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#include <mach/board.h>
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#include <mach/at91_pmc.h>
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#include <mach/at91sam9x5_matrix.h>
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#include <mach/at91sam9_ddrsdr.h>
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#include <mach/iomux.h>
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#include <mach/io.h>
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#include <mach/cpu.h>
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#include <i2c/i2c-gpio.h>
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#include "generic.h"
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void at91_add_device_sdram(u32 size)
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{
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if (!size)
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size = at91sama5_get_ddram_size();
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arm_add_mem_device("ram0", SAMA5_DDRCS, size);
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add_mem_device("sram0", SAMA5D4_SRAM_BASE,
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SAMA5D4_SRAM_SIZE, IORESOURCE_MEM_WRITEABLE);
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}
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/* --------------------------------------------------------------------
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* NAND / SmartMedia
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_NAND_ATMEL)
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static struct resource nand_resources[] = {
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[0] = {
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.start = SAMA5D4_CHIPSELECT_3,
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.end = SAMA5D4_CHIPSELECT_3 + SZ_128M - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = SAMA5D4_BASE_PMECC,
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.end = SAMA5D4_BASE_PMECC + 0x490 - 1,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = SAMA5D4_BASE_PMERRLOC,
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.end = SAMA5D4_BASE_PMERRLOC + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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void __init at91_add_device_nand(struct atmel_nand_data *data)
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{
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if (!data)
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return;
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at91_set_A_periph(AT91_PIN_PC5, 0); /* D0 */
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at91_set_A_periph(AT91_PIN_PC6, 0); /* D1 */
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at91_set_A_periph(AT91_PIN_PC7, 0); /* D2 */
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at91_set_A_periph(AT91_PIN_PC8, 0); /* D3 */
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at91_set_A_periph(AT91_PIN_PC9, 0); /* D4 */
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at91_set_A_periph(AT91_PIN_PC10, 0); /* D5 */
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at91_set_A_periph(AT91_PIN_PC11, 0); /* D6 */
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at91_set_A_periph(AT91_PIN_PC12, 0); /* D7 */
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at91_set_A_periph(AT91_PIN_PC13, 0); /* RE */
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at91_set_A_periph(AT91_PIN_PC14, 0); /* WE */
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at91_set_A_periph(AT91_PIN_PC15, 1); /* NCS */
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at91_set_A_periph(AT91_PIN_PC16, 1); /* RDY */
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at91_set_A_periph(AT91_PIN_PC17, 1); /* ALE */
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at91_set_A_periph(AT91_PIN_PC18, 1); /* CLE */
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/* enable pin */
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if (gpio_is_valid(data->enable_pin))
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at91_set_gpio_output(data->enable_pin, 1);
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/* ready/busy pin */
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if (gpio_is_valid(data->rdy_pin))
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at91_set_gpio_input(data->rdy_pin, 1);
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/* card detect pin */
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if (gpio_is_valid(data->det_pin))
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at91_set_gpio_input(data->det_pin, 1);
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add_generic_device_res("atmel_nand", 0, nand_resources,
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ARRAY_SIZE(nand_resources), data);
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}
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#else
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void __init at91_add_device_nand(struct atmel_nand_data *data) {}
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#endif
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#if defined(CONFIG_DRIVER_NET_MACB)
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void at91_add_device_eth(int id, struct macb_platform_data *data)
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{
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if (!data)
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return;
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switch (id) {
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case 0:
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at91_set_A_periph(AT91_PIN_PB16, 0); /* GMDC */
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at91_set_A_periph(AT91_PIN_PB17, 0); /* GMDIO */
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at91_set_A_periph(AT91_PIN_PB0, 0); /* GTXCK */
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at91_set_A_periph(AT91_PIN_PB2, 0); /* GTXEN */
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at91_set_A_periph(AT91_PIN_PB6, 0); /* GRXDV */
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at91_set_A_periph(AT91_PIN_PB7, 0); /* GRXER */
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switch (data->phy_interface) {
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case PHY_INTERFACE_MODE_MII:
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at91_set_A_periph(AT91_PIN_PB4, 0); /* GCRS */
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at91_set_A_periph(AT91_PIN_PB5, 0); /* GCOL */
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at91_set_A_periph(AT91_PIN_PB14, 0); /* GTX2 */
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at91_set_A_periph(AT91_PIN_PB15, 0); /* GTX3 */
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at91_set_A_periph(AT91_PIN_PB3, 0); /* GTXER */
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at91_set_A_periph(AT91_PIN_PB1, 0); /* GRXCK */
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at91_set_A_periph(AT91_PIN_PB10, 0); /* GRX2 */
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at91_set_A_periph(AT91_PIN_PB11, 0); /* GRX3 */
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case PHY_INTERFACE_MODE_RMII:
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at91_set_A_periph(AT91_PIN_PB12, 0); /* GTX0 */
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at91_set_A_periph(AT91_PIN_PB13, 0); /* GTX1 */
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at91_set_A_periph(AT91_PIN_PB8, 0); /* GRX0 */
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at91_set_A_periph(AT91_PIN_PB9, 0); /* GRX1 */
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break;
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default:
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return;
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}
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add_generic_device("macb", id, NULL, SAMA5D4_BASE_GMAC0, SZ_16K,
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IORESOURCE_MEM, data);
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break;
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case 1:
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at91_set_B_periph(AT91_PIN_PA22, 0); /* GMDC */
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at91_set_B_periph(AT91_PIN_PA23, 0); /* GMDIO */
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at91_set_B_periph(AT91_PIN_PA2, 0); /* GTXCK */
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at91_set_B_periph(AT91_PIN_PA4, 0); /* GTXEN */
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at91_set_B_periph(AT91_PIN_PA10, 0); /* GRXDV */
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at91_set_B_periph(AT91_PIN_PA11, 0); /* GRXER */
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switch (data->phy_interface) {
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case PHY_INTERFACE_MODE_MII:
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at91_set_B_periph(AT91_PIN_PA6, 0); /* GCRS */
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at91_set_B_periph(AT91_PIN_PA9, 0); /* GCOL */
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at91_set_B_periph(AT91_PIN_PA20, 0); /* GTX2 */
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at91_set_B_periph(AT91_PIN_PA21, 0); /* GTX3 */
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at91_set_B_periph(AT91_PIN_PA5, 0); /* GTXER */
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at91_set_B_periph(AT91_PIN_PA3, 0); /* GRXCK */
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at91_set_B_periph(AT91_PIN_PA18, 0); /* GRX2 */
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at91_set_B_periph(AT91_PIN_PA19, 0); /* GRX3 */
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case PHY_INTERFACE_MODE_RMII:
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at91_set_B_periph(AT91_PIN_PA12, 0); /* GTX0 */
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at91_set_B_periph(AT91_PIN_PA13, 0); /* GTX1 */
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at91_set_B_periph(AT91_PIN_PA8, 0); /* GRX0 */
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at91_set_B_periph(AT91_PIN_PA9, 0); /* GRX1 */
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break;
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default:
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return;
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}
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add_generic_device("macb", id, NULL, SAMA5D4_BASE_GMAC1, SZ_16K,
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IORESOURCE_MEM, data);
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break;
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default:
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return;
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}
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}
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#else
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void at91_add_device_eth(int id, struct macb_platform_data *data) {}
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#endif
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#if defined(CONFIG_MCI_ATMEL)
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void __init at91_add_device_mci(short mmc_id,
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struct atmel_mci_platform_data *data)
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{
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resource_size_t start = ~0;
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if (!data)
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return;
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/* Must have at least one usable slot */
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if (!data->bus_width)
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return;
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/* input/irq */
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if (gpio_is_valid(data->detect_pin)) {
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at91_set_gpio_input(data->detect_pin, 1);
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at91_set_deglitch(data->detect_pin, 1);
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}
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if (gpio_is_valid(data->wp_pin))
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at91_set_gpio_input(data->wp_pin, 1);
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switch (mmc_id) {
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/* MCI0 */
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case 0:
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start = SAMA5D4_BASE_HSMCI0;
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/* CLK */
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at91_set_B_periph(AT91_PIN_PC4, 0);
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/* CMD */
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at91_set_B_periph(AT91_PIN_PC5, 1);
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/* DAT0, maybe DAT1..DAT3 */
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at91_set_B_periph(AT91_PIN_PC6, 1);
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switch (data->bus_width) {
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case 8:
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at91_set_B_periph(AT91_PIN_PC10, 1);
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at91_set_B_periph(AT91_PIN_PC11, 1);
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at91_set_B_periph(AT91_PIN_PC12, 1);
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at91_set_B_periph(AT91_PIN_PC13, 1);
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case 4:
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at91_set_B_periph(AT91_PIN_PC7, 1);
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at91_set_B_periph(AT91_PIN_PC8, 1);
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at91_set_B_periph(AT91_PIN_PC9, 1);
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};
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break;
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/* MCI1 */
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case 1:
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start = SAMA5D4_BASE_HSMCI1;
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/*
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* As the mci1 io internal pull down is to strong,
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* which cause external pull up doesn't work, so,
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* disable internal pull down.
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*/
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/* CLK */
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at91_set_C_periph(AT91_PIN_PE18, 0);
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at91_set_pulldown(AT91_PIN_PE18, 0);
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/* CMD */
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at91_set_C_periph(AT91_PIN_PE19, 1);
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at91_set_pulldown(AT91_PIN_PE19, 0);
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/* DAT0, maybe DAT1..DAT3 */
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at91_set_C_periph(AT91_PIN_PE20, 1);
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at91_set_pulldown(AT91_PIN_PE20, 0);
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if (data->bus_width == 4) {
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at91_set_C_periph(AT91_PIN_PE21, 1);
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at91_set_pulldown(AT91_PIN_PE21, 0);
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at91_set_C_periph(AT91_PIN_PE22, 1);
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at91_set_pulldown(AT91_PIN_PE22, 0);
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at91_set_C_periph(AT91_PIN_PE23, 1);
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at91_set_pulldown(AT91_PIN_PE23, 0);
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}
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break;
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}
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add_generic_device("atmel_mci", mmc_id, NULL, start, SZ_16K,
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IORESOURCE_MEM, data);
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}
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#else
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void __init at91_add_device_mci(short mmc_id,
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struct atmel_mci_platform_data *data) {}
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#endif
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#if defined(CONFIG_I2C_GPIO)
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static struct i2c_gpio_platform_data pdata_i2c[] = {
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{
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.sda_pin = AT91_PIN_PA30,
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.sda_is_open_drain = 1,
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.scl_pin = AT91_PIN_PA31,
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.scl_is_open_drain = 1,
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.udelay = 5, /* ~100 kHz */
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}, {
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.sda_pin = AT91_PIN_PE29,
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.sda_is_open_drain = 1,
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.scl_pin = AT91_PIN_PE30,
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.scl_is_open_drain = 1,
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.udelay = 5, /* ~100 kHz */
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}, {
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.sda_pin = AT91_PIN_PB29,
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.sda_is_open_drain = 1,
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.scl_pin = AT91_PIN_PB30,
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.scl_is_open_drain = 1,
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.udelay = 5, /* ~100 kHz */
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}, {
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.sda_pin = AT91_PIN_PC25,
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.sda_is_open_drain = 1,
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.scl_pin = AT91_PIN_PC26,
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.scl_is_open_drain = 1,
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.udelay = 5, /* ~100 kHz */
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}
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};
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void at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices,
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int nr_devices)
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{
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struct i2c_gpio_platform_data *pdata;
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if (i2c_id > ARRAY_SIZE(pdata_i2c))
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return;
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i2c_register_board_info(i2c_id, devices, nr_devices);
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pdata = &pdata_i2c[i2c_id];
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at91_set_GPIO_periph(pdata->sda_pin, 1); /* TWD (SDA) */
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at91_set_multi_drive(pdata->sda_pin, 1);
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at91_set_GPIO_periph(pdata->scl_pin, 1); /* TWCK (SCL) */
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at91_set_multi_drive(pdata->scl_pin, 1);
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add_generic_device_res("i2c-gpio", i2c_id, NULL, 0, pdata);
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}
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#else
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void at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices,
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int nr_devices) {}
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#endif
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/* --------------------------------------------------------------------
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* SPI
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_DRIVER_SPI_ATMEL)
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static unsigned spi0_standard_cs[2] = { AT91_PIN_PC3, AT91_PIN_PC4 };
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static unsigned spi1_standard_cs[2] = { AT91_PIN_PB21, AT91_PIN_PB22 };
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static struct at91_spi_platform_data spi_pdata[] = {
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[0] = {
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.chipselect = spi0_standard_cs,
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.num_chipselect = ARRAY_SIZE(spi0_standard_cs),
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},
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[1] = {
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.chipselect = spi1_standard_cs,
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.num_chipselect = ARRAY_SIZE(spi1_standard_cs),
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},
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};
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void at91_add_device_spi(int spi_id, struct at91_spi_platform_data *pdata)
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{
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int i;
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int cs_pin;
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resource_size_t start = ~0;
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BUG_ON(spi_id > 1);
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if (!pdata)
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pdata = &spi_pdata[spi_id];
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for (i = 0; i < pdata->num_chipselect; i++) {
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cs_pin = pdata->chipselect[i];
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/* enable chip-select pin */
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if (gpio_is_valid(cs_pin))
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at91_set_gpio_output(cs_pin, 1);
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}
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/* Configure SPI bus(es) */
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switch (spi_id) {
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case 0:
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start = SAMA5D4_BASE_SPI0;
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at91_set_A_periph(AT91_PIN_PC0, 0); /* SPI0_MISO */
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at91_set_A_periph(AT91_PIN_PC1, 0); /* SPI0_MOSI */
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at91_set_A_periph(AT91_PIN_PC2, 0); /* SPI0_SPCK */
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break;
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case 1:
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start = SAMA5D4_BASE_SPI1;
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at91_set_A_periph(AT91_PIN_PB18, 0); /* SPI1_MISO */
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at91_set_A_periph(AT91_PIN_PB19, 0); /* SPI1_MOSI */
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at91_set_A_periph(AT91_PIN_PB20, 0); /* SPI1_SPCK */
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break;
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}
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add_generic_device("atmel_spi", spi_id, NULL, start, SZ_16K,
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IORESOURCE_MEM, pdata);
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}
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#else
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void at91_add_device_spi(int spi_id, struct at91_spi_platform_data *pdata) {}
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#endif
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/* --------------------------------------------------------------------
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* LCD Controller
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_DRIVER_VIDEO_ATMEL_HLCD)
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void __init at91_add_device_lcdc(struct atmel_lcdfb_platform_data *data)
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{
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BUG_ON(!data);
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at91_set_A_periph(AT91_PIN_PA24, 0); /* LCDPWM */
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at91_set_A_periph(AT91_PIN_PA25, 0); /* LCDDISP */
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at91_set_A_periph(AT91_PIN_PA26, 0); /* LCDVSYNC */
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at91_set_A_periph(AT91_PIN_PA27, 0); /* LCDHSYNC */
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at91_set_A_periph(AT91_PIN_PA28, 0); /* LCDDOTCK */
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at91_set_A_periph(AT91_PIN_PA29, 0); /* LCDDEN */
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at91_set_A_periph(AT91_PIN_PA2, 0); /* LCDD2 */
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at91_set_A_periph(AT91_PIN_PA3, 0); /* LCDD3 */
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at91_set_A_periph(AT91_PIN_PA4, 0); /* LCDD4 */
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at91_set_A_periph(AT91_PIN_PA5, 0); /* LCDD5 */
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at91_set_A_periph(AT91_PIN_PA6, 0); /* LCDD6 */
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at91_set_A_periph(AT91_PIN_PA7, 0); /* LCDD7 */
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at91_set_A_periph(AT91_PIN_PA10, 0); /* LCDD10 */
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at91_set_A_periph(AT91_PIN_PA11, 0); /* LCDD11 */
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at91_set_A_periph(AT91_PIN_PA12, 0); /* LCDD12 */
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at91_set_A_periph(AT91_PIN_PA13, 0); /* LCDD13 */
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at91_set_A_periph(AT91_PIN_PA14, 0); /* LCDD14 */
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at91_set_A_periph(AT91_PIN_PA15, 0); /* LCDD15 */
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at91_set_A_periph(AT91_PIN_PA18, 0); /* LCDD18 */
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at91_set_A_periph(AT91_PIN_PA19, 0); /* LCDD19 */
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at91_set_A_periph(AT91_PIN_PA20, 0); /* LCDD20 */
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at91_set_A_periph(AT91_PIN_PA21, 0); /* LCDD21 */
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at91_set_A_periph(AT91_PIN_PA22, 0); /* LCDD22 */
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at91_set_A_periph(AT91_PIN_PA23, 0); /* LCDD23 */
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add_generic_device("atmel_hlcdfb", DEVICE_ID_SINGLE, NULL,
|
|
SAMA5D4_BASE_LCDC, SZ_4K, IORESOURCE_MEM, data);
|
|
}
|
|
#else
|
|
void __init at91_add_device_lcdc(struct atmel_lcdfb_platform_data *data) {}
|
|
#endif
|
|
|
|
/* --------------------------------------------------------------------
|
|
* UART
|
|
* -------------------------------------------------------------------- */
|
|
#if defined(CONFIG_DRIVER_SERIAL_ATMEL)
|
|
resource_size_t __init at91_configure_dbgu(void)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PB25, 0); /* DTXD */
|
|
at91_set_A_periph(AT91_PIN_PB24, 1); /* DRXD */
|
|
|
|
return SAMA5D4_BASE_DBGU;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart0(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PD13, 0); /* TXD0 */
|
|
at91_set_A_periph(AT91_PIN_PD12, 1); /* RXD0 */
|
|
|
|
return SAMA5D4_BASE_USART0;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart1(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PD17, 0); /* TXD1 */
|
|
at91_set_A_periph(AT91_PIN_PD16, 1); /* RXD1 */
|
|
|
|
return SAMA5D4_BASE_USART1;
|
|
}
|
|
|
|
|
|
resource_size_t __init at91_configure_usart2(unsigned pins)
|
|
{
|
|
at91_set_B_periph(AT91_PIN_PB5, 0); /* TXD2 */
|
|
at91_set_B_periph(AT91_PIN_PB4, 1); /* RXD2 */
|
|
|
|
return SAMA5D4_BASE_USART2;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart3(unsigned pins)
|
|
{
|
|
at91_set_B_periph(AT91_PIN_PE17, 0); /* TXD3 */
|
|
at91_set_B_periph(AT91_PIN_PE16, 1); /* RXD3 */
|
|
|
|
return SAMA5D4_BASE_USART3;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart4(unsigned pins)
|
|
{
|
|
at91_set_B_periph(AT91_PIN_PE27, 0); /* TXD4 */
|
|
at91_set_B_periph(AT91_PIN_PE26, 1); /* RXD4 */
|
|
|
|
return SAMA5D4_BASE_USART4;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart5(unsigned pins)
|
|
{
|
|
at91_set_B_periph(AT91_PIN_PE30, 0); /* UTXD0 */
|
|
at91_set_B_periph(AT91_PIN_PE29, 1); /* URXD0 */
|
|
|
|
return SAMA5D4_BASE_UART0;
|
|
}
|
|
|
|
resource_size_t __init at91_configure_usart6(unsigned pins)
|
|
{
|
|
at91_set_C_periph(AT91_PIN_PC26, 0); /* UTXD1 */
|
|
at91_set_C_periph(AT91_PIN_PC25, 1); /* URXD1 */
|
|
|
|
return SAMA5D4_BASE_UART1;
|
|
}
|
|
#endif
|