mirror of https://gitee.com/openkylin/linux.git
1231 lines
31 KiB
C
1231 lines
31 KiB
C
/*
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* Copyright (C) 2007 Atmel Corporation
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <linux/dma-mapping.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/i2c-gpio.h>
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#include <linux/fb.h>
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#include <video/atmel_lcdc.h>
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#include <mach/board.h>
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#include <mach/at91sam9rl.h>
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#include <mach/at91sam9rl_matrix.h>
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#include <mach/at91_matrix.h>
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#include <mach/at91sam9_smc.h>
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#include <linux/platform_data/dma-atmel.h>
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#include "generic.h"
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/* --------------------------------------------------------------------
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* HDMAC - AHB DMA Controller
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
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static u64 hdmac_dmamask = DMA_BIT_MASK(32);
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static struct resource hdmac_resources[] = {
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[0] = {
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.start = AT91SAM9RL_BASE_DMA,
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.end = AT91SAM9RL_BASE_DMA + SZ_512 - 1,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_DMA,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_DMA,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at_hdmac_device = {
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.name = "at91sam9rl_dma",
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.id = -1,
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.dev = {
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.dma_mask = &hdmac_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = hdmac_resources,
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.num_resources = ARRAY_SIZE(hdmac_resources),
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};
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void __init at91_add_device_hdmac(void)
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{
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platform_device_register(&at_hdmac_device);
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}
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#else
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void __init at91_add_device_hdmac(void) {}
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#endif
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/* --------------------------------------------------------------------
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* USB HS Device (Gadget)
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_USB_ATMEL_USBA) || defined(CONFIG_USB_ATMEL_USBA_MODULE)
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static struct resource usba_udc_resources[] = {
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[0] = {
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.start = AT91SAM9RL_UDPHS_FIFO,
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.end = AT91SAM9RL_UDPHS_FIFO + SZ_512K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AT91SAM9RL_BASE_UDPHS,
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.end = AT91SAM9RL_BASE_UDPHS + SZ_1K - 1,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_UDPHS,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_UDPHS,
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.flags = IORESOURCE_IRQ,
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},
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};
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#define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
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[idx] = { \
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.name = nam, \
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.index = idx, \
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.fifo_size = maxpkt, \
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.nr_banks = maxbk, \
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.can_dma = dma, \
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.can_isoc = isoc, \
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}
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static struct usba_ep_data usba_udc_ep[] __initdata = {
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EP("ep0", 0, 64, 1, 0, 0),
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EP("ep1", 1, 1024, 2, 1, 1),
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EP("ep2", 2, 1024, 2, 1, 1),
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EP("ep3", 3, 1024, 3, 1, 0),
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EP("ep4", 4, 1024, 3, 1, 0),
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EP("ep5", 5, 1024, 3, 1, 1),
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EP("ep6", 6, 1024, 3, 1, 1),
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};
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#undef EP
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/*
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* pdata doesn't have room for any endpoints, so we need to
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* append room for the ones we need right after it.
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*/
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static struct {
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struct usba_platform_data pdata;
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struct usba_ep_data ep[7];
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} usba_udc_data;
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static struct platform_device at91_usba_udc_device = {
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.name = "atmel_usba_udc",
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.id = -1,
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.dev = {
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.platform_data = &usba_udc_data.pdata,
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},
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.resource = usba_udc_resources,
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.num_resources = ARRAY_SIZE(usba_udc_resources),
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};
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void __init at91_add_device_usba(struct usba_platform_data *data)
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{
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/*
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* Invalid pins are 0 on AT91, but the usba driver is shared
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* with AVR32, which use negative values instead. Once/if
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* gpio_is_valid() is ported to AT91, revisit this code.
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*/
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usba_udc_data.pdata.vbus_pin = -EINVAL;
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usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
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memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
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if (data && gpio_is_valid(data->vbus_pin)) {
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at91_set_gpio_input(data->vbus_pin, 0);
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at91_set_deglitch(data->vbus_pin, 1);
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usba_udc_data.pdata.vbus_pin = data->vbus_pin;
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}
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/* Pullup pin is handled internally by USB device peripheral */
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platform_device_register(&at91_usba_udc_device);
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}
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#else
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void __init at91_add_device_usba(struct usba_platform_data *data) {}
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#endif
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/* --------------------------------------------------------------------
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* MMC / SD
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* -------------------------------------------------------------------- */
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#if IS_ENABLED(CONFIG_MMC_ATMELMCI)
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static u64 mmc_dmamask = DMA_BIT_MASK(32);
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static struct mci_platform_data mmc_data;
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static struct resource mmc_resources[] = {
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[0] = {
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.start = AT91SAM9RL_BASE_MCI,
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.end = AT91SAM9RL_BASE_MCI + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_MCI,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_MCI,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at91sam9rl_mmc_device = {
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.name = "atmel_mci",
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.id = -1,
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.dev = {
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.dma_mask = &mmc_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &mmc_data,
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},
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.resource = mmc_resources,
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.num_resources = ARRAY_SIZE(mmc_resources),
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};
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void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
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{
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if (!data)
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return;
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if (data->slot[0].bus_width) {
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/* input/irq */
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if (gpio_is_valid(data->slot[0].detect_pin)) {
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at91_set_gpio_input(data->slot[0].detect_pin, 1);
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at91_set_deglitch(data->slot[0].detect_pin, 1);
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}
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if (gpio_is_valid(data->slot[0].wp_pin))
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at91_set_gpio_input(data->slot[0].wp_pin, 1);
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/* CLK */
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at91_set_A_periph(AT91_PIN_PA2, 0);
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/* CMD */
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at91_set_A_periph(AT91_PIN_PA1, 1);
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/* DAT0, maybe DAT1..DAT3 */
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at91_set_A_periph(AT91_PIN_PA0, 1);
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if (data->slot[0].bus_width == 4) {
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at91_set_A_periph(AT91_PIN_PA3, 1);
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at91_set_A_periph(AT91_PIN_PA4, 1);
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at91_set_A_periph(AT91_PIN_PA5, 1);
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}
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mmc_data = *data;
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platform_device_register(&at91sam9rl_mmc_device);
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}
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}
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#else
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void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
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#endif
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/* --------------------------------------------------------------------
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* NAND / SmartMedia
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
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static struct atmel_nand_data nand_data;
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#define NAND_BASE AT91_CHIPSELECT_3
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static struct resource nand_resources[] = {
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[0] = {
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.start = NAND_BASE,
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.end = NAND_BASE + SZ_256M - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AT91SAM9RL_BASE_ECC,
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.end = AT91SAM9RL_BASE_ECC + SZ_512 - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device atmel_nand_device = {
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.name = "atmel_nand",
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.id = -1,
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.dev = {
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.platform_data = &nand_data,
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},
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.resource = nand_resources,
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.num_resources = ARRAY_SIZE(nand_resources),
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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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unsigned long csa;
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if (!data)
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return;
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csa = at91_matrix_read(AT91_MATRIX_EBICSA);
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at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
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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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at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */
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at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */
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nand_data = *data;
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platform_device_register(&atmel_nand_device);
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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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/* --------------------------------------------------------------------
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* TWI (i2c)
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* -------------------------------------------------------------------- */
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/*
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* Prefer the GPIO code since the TWI controller isn't robust
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* (gets overruns and underruns under load) and can only issue
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* repeated STARTs in one scenario (the driver doesn't yet handle them).
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*/
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#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
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static struct i2c_gpio_platform_data pdata = {
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.sda_pin = AT91_PIN_PA23,
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.sda_is_open_drain = 1,
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.scl_pin = AT91_PIN_PA24,
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.scl_is_open_drain = 1,
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.udelay = 2, /* ~100 kHz */
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};
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static struct platform_device at91sam9rl_twi_device = {
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.name = "i2c-gpio",
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.id = -1,
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.dev.platform_data = &pdata,
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};
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void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
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{
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at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
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at91_set_multi_drive(AT91_PIN_PA23, 1);
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at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
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at91_set_multi_drive(AT91_PIN_PA24, 1);
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i2c_register_board_info(0, devices, nr_devices);
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platform_device_register(&at91sam9rl_twi_device);
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}
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#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
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static struct resource twi_resources[] = {
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[0] = {
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.start = AT91SAM9RL_BASE_TWI0,
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.end = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_TWI0,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_TWI0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at91sam9rl_twi_device = {
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.name = "i2c-at91sam9g20",
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.id = -1,
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.resource = twi_resources,
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.num_resources = ARRAY_SIZE(twi_resources),
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};
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void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
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{
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/* pins used for TWI interface */
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at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
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at91_set_multi_drive(AT91_PIN_PA23, 1);
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at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
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at91_set_multi_drive(AT91_PIN_PA24, 1);
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i2c_register_board_info(0, devices, nr_devices);
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platform_device_register(&at91sam9rl_twi_device);
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}
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#else
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void __init at91_add_device_i2c(struct i2c_board_info *devices, 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_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
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static u64 spi_dmamask = DMA_BIT_MASK(32);
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static struct resource spi_resources[] = {
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[0] = {
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.start = AT91SAM9RL_BASE_SPI,
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.end = AT91SAM9RL_BASE_SPI + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_SPI,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_SPI,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at91sam9rl_spi_device = {
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.name = "atmel_spi",
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.id = 0,
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.dev = {
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.dma_mask = &spi_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = spi_resources,
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.num_resources = ARRAY_SIZE(spi_resources),
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};
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static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 };
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void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
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{
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int i;
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unsigned long cs_pin;
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at91_set_A_periph(AT91_PIN_PA25, 0); /* MISO */
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at91_set_A_periph(AT91_PIN_PA26, 0); /* MOSI */
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at91_set_A_periph(AT91_PIN_PA27, 0); /* SPCK */
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/* Enable SPI chip-selects */
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for (i = 0; i < nr_devices; i++) {
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if (devices[i].controller_data)
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cs_pin = (unsigned long) devices[i].controller_data;
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else
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cs_pin = spi_standard_cs[devices[i].chip_select];
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if (!gpio_is_valid(cs_pin))
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continue;
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/* enable chip-select pin */
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at91_set_gpio_output(cs_pin, 1);
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/* pass chip-select pin to driver */
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devices[i].controller_data = (void *) cs_pin;
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}
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spi_register_board_info(devices, nr_devices);
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platform_device_register(&at91sam9rl_spi_device);
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}
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#else
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void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
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#endif
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/* --------------------------------------------------------------------
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* AC97
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
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static u64 ac97_dmamask = DMA_BIT_MASK(32);
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static struct ac97c_platform_data ac97_data;
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static struct resource ac97_resources[] = {
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[0] = {
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.start = AT91SAM9RL_BASE_AC97C,
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.end = AT91SAM9RL_BASE_AC97C + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_AC97C,
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.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_AC97C,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at91sam9rl_ac97_device = {
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.name = "atmel_ac97c",
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.id = 0,
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.dev = {
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.dma_mask = &ac97_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &ac97_data,
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},
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.resource = ac97_resources,
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.num_resources = ARRAY_SIZE(ac97_resources),
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};
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void __init at91_add_device_ac97(struct ac97c_platform_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_PD1, 0); /* AC97FS */
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at91_set_A_periph(AT91_PIN_PD2, 0); /* AC97CK */
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at91_set_A_periph(AT91_PIN_PD3, 0); /* AC97TX */
|
|
at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */
|
|
|
|
/* reset */
|
|
if (gpio_is_valid(data->reset_pin))
|
|
at91_set_gpio_output(data->reset_pin, 0);
|
|
|
|
ac97_data = *data;
|
|
platform_device_register(&at91sam9rl_ac97_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* LCD Controller
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
|
|
static u64 lcdc_dmamask = DMA_BIT_MASK(32);
|
|
static struct atmel_lcdfb_info lcdc_data;
|
|
|
|
static struct resource lcdc_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_LCDC_BASE,
|
|
.end = AT91SAM9RL_LCDC_BASE + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_LCDC,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_LCDC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91_lcdc_device = {
|
|
.name = "atmel_lcdfb",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &lcdc_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &lcdc_data,
|
|
},
|
|
.resource = lcdc_resources,
|
|
.num_resources = ARRAY_SIZE(lcdc_resources),
|
|
};
|
|
|
|
void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
|
|
{
|
|
if (!data) {
|
|
return;
|
|
}
|
|
|
|
at91_set_B_periph(AT91_PIN_PC1, 0); /* LCDPWR */
|
|
at91_set_A_periph(AT91_PIN_PC5, 0); /* LCDHSYNC */
|
|
at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDDOTCK */
|
|
at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDDEN */
|
|
at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDCC */
|
|
at91_set_B_periph(AT91_PIN_PC9, 0); /* LCDD3 */
|
|
at91_set_B_periph(AT91_PIN_PC10, 0); /* LCDD4 */
|
|
at91_set_B_periph(AT91_PIN_PC11, 0); /* LCDD5 */
|
|
at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD6 */
|
|
at91_set_B_periph(AT91_PIN_PC13, 0); /* LCDD7 */
|
|
at91_set_B_periph(AT91_PIN_PC15, 0); /* LCDD11 */
|
|
at91_set_B_periph(AT91_PIN_PC16, 0); /* LCDD12 */
|
|
at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD13 */
|
|
at91_set_B_periph(AT91_PIN_PC18, 0); /* LCDD14 */
|
|
at91_set_B_periph(AT91_PIN_PC19, 0); /* LCDD15 */
|
|
at91_set_B_periph(AT91_PIN_PC20, 0); /* LCDD18 */
|
|
at91_set_B_periph(AT91_PIN_PC21, 0); /* LCDD19 */
|
|
at91_set_B_periph(AT91_PIN_PC22, 0); /* LCDD20 */
|
|
at91_set_B_periph(AT91_PIN_PC23, 0); /* LCDD21 */
|
|
at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */
|
|
at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */
|
|
|
|
lcdc_data = *data;
|
|
platform_device_register(&at91_lcdc_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Timer/Counter block
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#ifdef CONFIG_ATMEL_TCLIB
|
|
|
|
static struct resource tcb_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_TCB0,
|
|
.end = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC0,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
[2] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC1,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
[3] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC2,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_TC2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_tcb_device = {
|
|
.name = "atmel_tcb",
|
|
.id = 0,
|
|
.resource = tcb_resources,
|
|
.num_resources = ARRAY_SIZE(tcb_resources),
|
|
};
|
|
|
|
static void __init at91_add_device_tc(void)
|
|
{
|
|
platform_device_register(&at91sam9rl_tcb_device);
|
|
}
|
|
#else
|
|
static void __init at91_add_device_tc(void) { }
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Touchscreen
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
|
|
static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
|
|
static struct at91_tsadcc_data tsadcc_data;
|
|
|
|
static struct resource tsadcc_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_TSC,
|
|
.end = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_TSC,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_TSC,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_tsadcc_device = {
|
|
.name = "atmel_tsadcc",
|
|
.id = -1,
|
|
.dev = {
|
|
.dma_mask = &tsadcc_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &tsadcc_data,
|
|
},
|
|
.resource = tsadcc_resources,
|
|
.num_resources = ARRAY_SIZE(tsadcc_resources),
|
|
};
|
|
|
|
void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
|
|
{
|
|
if (!data)
|
|
return;
|
|
|
|
at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */
|
|
at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */
|
|
at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */
|
|
at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */
|
|
|
|
tsadcc_data = *data;
|
|
platform_device_register(&at91sam9rl_tsadcc_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* RTC
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
|
|
static struct platform_device at91sam9rl_rtc_device = {
|
|
.name = "at91_rtc",
|
|
.id = -1,
|
|
.num_resources = 0,
|
|
};
|
|
|
|
static void __init at91_add_device_rtc(void)
|
|
{
|
|
platform_device_register(&at91sam9rl_rtc_device);
|
|
}
|
|
#else
|
|
static void __init at91_add_device_rtc(void) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* RTT
|
|
* -------------------------------------------------------------------- */
|
|
|
|
static struct resource rtt_resources[] = {
|
|
{
|
|
.start = AT91SAM9RL_BASE_RTT,
|
|
.end = AT91SAM9RL_BASE_RTT + SZ_16 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_rtt_device = {
|
|
.name = "at91_rtt",
|
|
.id = 0,
|
|
.resource = rtt_resources,
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
|
|
static void __init at91_add_device_rtt_rtc(void)
|
|
{
|
|
at91sam9rl_rtt_device.name = "rtc-at91sam9";
|
|
/*
|
|
* The second resource is needed:
|
|
* GPBR will serve as the storage for RTC time offset
|
|
*/
|
|
at91sam9rl_rtt_device.num_resources = 3;
|
|
rtt_resources[1].start = AT91SAM9RL_BASE_GPBR +
|
|
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
|
rtt_resources[1].end = rtt_resources[1].start + 3;
|
|
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
|
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
|
}
|
|
#else
|
|
static void __init at91_add_device_rtt_rtc(void)
|
|
{
|
|
/* Only one resource is needed: RTT not used as RTC */
|
|
at91sam9rl_rtt_device.num_resources = 1;
|
|
}
|
|
#endif
|
|
|
|
static void __init at91_add_device_rtt(void)
|
|
{
|
|
at91_add_device_rtt_rtc();
|
|
platform_device_register(&at91sam9rl_rtt_device);
|
|
}
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* Watchdog
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
|
|
static struct resource wdt_resources[] = {
|
|
{
|
|
.start = AT91SAM9RL_BASE_WDT,
|
|
.end = AT91SAM9RL_BASE_WDT + SZ_16 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_wdt_device = {
|
|
.name = "at91_wdt",
|
|
.id = -1,
|
|
.resource = wdt_resources,
|
|
.num_resources = ARRAY_SIZE(wdt_resources),
|
|
};
|
|
|
|
static void __init at91_add_device_watchdog(void)
|
|
{
|
|
platform_device_register(&at91sam9rl_wdt_device);
|
|
}
|
|
#else
|
|
static void __init at91_add_device_watchdog(void) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* PWM
|
|
* --------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_ATMEL_PWM)
|
|
static u32 pwm_mask;
|
|
|
|
static struct resource pwm_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_PWMC,
|
|
.end = AT91SAM9RL_BASE_PWMC + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_PWMC,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_PWMC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_pwm0_device = {
|
|
.name = "atmel_pwm",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &pwm_mask,
|
|
},
|
|
.resource = pwm_resources,
|
|
.num_resources = ARRAY_SIZE(pwm_resources),
|
|
};
|
|
|
|
void __init at91_add_device_pwm(u32 mask)
|
|
{
|
|
if (mask & (1 << AT91_PWM0))
|
|
at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM0 */
|
|
|
|
if (mask & (1 << AT91_PWM1))
|
|
at91_set_B_periph(AT91_PIN_PB9, 1); /* enable PWM1 */
|
|
|
|
if (mask & (1 << AT91_PWM2))
|
|
at91_set_B_periph(AT91_PIN_PD5, 1); /* enable PWM2 */
|
|
|
|
if (mask & (1 << AT91_PWM3))
|
|
at91_set_B_periph(AT91_PIN_PD8, 1); /* enable PWM3 */
|
|
|
|
pwm_mask = mask;
|
|
|
|
platform_device_register(&at91sam9rl_pwm0_device);
|
|
}
|
|
#else
|
|
void __init at91_add_device_pwm(u32 mask) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* SSC -- Synchronous Serial Controller
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
|
|
static u64 ssc0_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource ssc0_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_SSC0,
|
|
.end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_SSC0,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_SSC0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_ssc0_device = {
|
|
.name = "ssc",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &ssc0_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.resource = ssc0_resources,
|
|
.num_resources = ARRAY_SIZE(ssc0_resources),
|
|
};
|
|
|
|
static inline void configure_ssc0_pins(unsigned pins)
|
|
{
|
|
if (pins & ATMEL_SSC_TF)
|
|
at91_set_A_periph(AT91_PIN_PC0, 1);
|
|
if (pins & ATMEL_SSC_TK)
|
|
at91_set_A_periph(AT91_PIN_PC1, 1);
|
|
if (pins & ATMEL_SSC_TD)
|
|
at91_set_A_periph(AT91_PIN_PA15, 1);
|
|
if (pins & ATMEL_SSC_RD)
|
|
at91_set_A_periph(AT91_PIN_PA16, 1);
|
|
if (pins & ATMEL_SSC_RK)
|
|
at91_set_B_periph(AT91_PIN_PA10, 1);
|
|
if (pins & ATMEL_SSC_RF)
|
|
at91_set_B_periph(AT91_PIN_PA22, 1);
|
|
}
|
|
|
|
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct resource ssc1_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_SSC1,
|
|
.end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_SSC1,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_SSC1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device at91sam9rl_ssc1_device = {
|
|
.name = "ssc",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &ssc1_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
},
|
|
.resource = ssc1_resources,
|
|
.num_resources = ARRAY_SIZE(ssc1_resources),
|
|
};
|
|
|
|
static inline void configure_ssc1_pins(unsigned pins)
|
|
{
|
|
if (pins & ATMEL_SSC_TF)
|
|
at91_set_B_periph(AT91_PIN_PA29, 1);
|
|
if (pins & ATMEL_SSC_TK)
|
|
at91_set_B_periph(AT91_PIN_PA30, 1);
|
|
if (pins & ATMEL_SSC_TD)
|
|
at91_set_B_periph(AT91_PIN_PA13, 1);
|
|
if (pins & ATMEL_SSC_RD)
|
|
at91_set_B_periph(AT91_PIN_PA14, 1);
|
|
if (pins & ATMEL_SSC_RK)
|
|
at91_set_B_periph(AT91_PIN_PA9, 1);
|
|
if (pins & ATMEL_SSC_RF)
|
|
at91_set_B_periph(AT91_PIN_PA8, 1);
|
|
}
|
|
|
|
/*
|
|
* SSC controllers are accessed through library code, instead of any
|
|
* kind of all-singing/all-dancing driver. For example one could be
|
|
* used by a particular I2S audio codec's driver, while another one
|
|
* on the same system might be used by a custom data capture driver.
|
|
*/
|
|
void __init at91_add_device_ssc(unsigned id, unsigned pins)
|
|
{
|
|
struct platform_device *pdev;
|
|
|
|
/*
|
|
* NOTE: caller is responsible for passing information matching
|
|
* "pins" to whatever will be using each particular controller.
|
|
*/
|
|
switch (id) {
|
|
case AT91SAM9RL_ID_SSC0:
|
|
pdev = &at91sam9rl_ssc0_device;
|
|
configure_ssc0_pins(pins);
|
|
break;
|
|
case AT91SAM9RL_ID_SSC1:
|
|
pdev = &at91sam9rl_ssc1_device;
|
|
configure_ssc1_pins(pins);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
platform_device_register(pdev);
|
|
}
|
|
|
|
#else
|
|
void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
|
|
#endif
|
|
|
|
|
|
/* --------------------------------------------------------------------
|
|
* UART
|
|
* -------------------------------------------------------------------- */
|
|
|
|
#if defined(CONFIG_SERIAL_ATMEL)
|
|
static struct resource dbgu_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_DBGU,
|
|
.end = AT91SAM9RL_BASE_DBGU + SZ_512 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91_ID_SYS,
|
|
.end = NR_IRQS_LEGACY + AT91_ID_SYS,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct atmel_uart_data dbgu_data = {
|
|
.use_dma_tx = 0,
|
|
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
|
|
};
|
|
|
|
static u64 dbgu_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91sam9rl_dbgu_device = {
|
|
.name = "atmel_usart",
|
|
.id = 0,
|
|
.dev = {
|
|
.dma_mask = &dbgu_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &dbgu_data,
|
|
},
|
|
.resource = dbgu_resources,
|
|
.num_resources = ARRAY_SIZE(dbgu_resources),
|
|
};
|
|
|
|
static inline void configure_dbgu_pins(void)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
|
|
at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
|
|
}
|
|
|
|
static struct resource uart0_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_US0,
|
|
.end = AT91SAM9RL_BASE_US0 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_US0,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_US0,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct atmel_uart_data uart0_data = {
|
|
.use_dma_tx = 1,
|
|
.use_dma_rx = 1,
|
|
};
|
|
|
|
static u64 uart0_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91sam9rl_uart0_device = {
|
|
.name = "atmel_usart",
|
|
.id = 1,
|
|
.dev = {
|
|
.dma_mask = &uart0_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &uart0_data,
|
|
},
|
|
.resource = uart0_resources,
|
|
.num_resources = ARRAY_SIZE(uart0_resources),
|
|
};
|
|
|
|
static inline void configure_usart0_pins(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
|
|
at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */
|
|
if (pins & ATMEL_UART_DSR)
|
|
at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */
|
|
if (pins & ATMEL_UART_DTR)
|
|
at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */
|
|
if (pins & ATMEL_UART_DCD)
|
|
at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */
|
|
if (pins & ATMEL_UART_RI)
|
|
at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */
|
|
}
|
|
|
|
static struct resource uart1_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_US1,
|
|
.end = AT91SAM9RL_BASE_US1 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_US1,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_US1,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct atmel_uart_data uart1_data = {
|
|
.use_dma_tx = 1,
|
|
.use_dma_rx = 1,
|
|
};
|
|
|
|
static u64 uart1_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91sam9rl_uart1_device = {
|
|
.name = "atmel_usart",
|
|
.id = 2,
|
|
.dev = {
|
|
.dma_mask = &uart1_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &uart1_data,
|
|
},
|
|
.resource = uart1_resources,
|
|
.num_resources = ARRAY_SIZE(uart1_resources),
|
|
};
|
|
|
|
static inline void configure_usart1_pins(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
|
|
at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */
|
|
}
|
|
|
|
static struct resource uart2_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_US2,
|
|
.end = AT91SAM9RL_BASE_US2 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_US2,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_US2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct atmel_uart_data uart2_data = {
|
|
.use_dma_tx = 1,
|
|
.use_dma_rx = 1,
|
|
};
|
|
|
|
static u64 uart2_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91sam9rl_uart2_device = {
|
|
.name = "atmel_usart",
|
|
.id = 3,
|
|
.dev = {
|
|
.dma_mask = &uart2_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &uart2_data,
|
|
},
|
|
.resource = uart2_resources,
|
|
.num_resources = ARRAY_SIZE(uart2_resources),
|
|
};
|
|
|
|
static inline void configure_usart2_pins(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
|
|
at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */
|
|
}
|
|
|
|
static struct resource uart3_resources[] = {
|
|
[0] = {
|
|
.start = AT91SAM9RL_BASE_US3,
|
|
.end = AT91SAM9RL_BASE_US3 + SZ_16K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = NR_IRQS_LEGACY + AT91SAM9RL_ID_US3,
|
|
.end = NR_IRQS_LEGACY + AT91SAM9RL_ID_US3,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct atmel_uart_data uart3_data = {
|
|
.use_dma_tx = 1,
|
|
.use_dma_rx = 1,
|
|
};
|
|
|
|
static u64 uart3_dmamask = DMA_BIT_MASK(32);
|
|
|
|
static struct platform_device at91sam9rl_uart3_device = {
|
|
.name = "atmel_usart",
|
|
.id = 4,
|
|
.dev = {
|
|
.dma_mask = &uart3_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &uart3_data,
|
|
},
|
|
.resource = uart3_resources,
|
|
.num_resources = ARRAY_SIZE(uart3_resources),
|
|
};
|
|
|
|
static inline void configure_usart3_pins(unsigned pins)
|
|
{
|
|
at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */
|
|
at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */
|
|
|
|
if (pins & ATMEL_UART_RTS)
|
|
at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */
|
|
if (pins & ATMEL_UART_CTS)
|
|
at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */
|
|
}
|
|
|
|
static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
|
|
|
|
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct atmel_uart_data *pdata;
|
|
|
|
switch (id) {
|
|
case 0: /* DBGU */
|
|
pdev = &at91sam9rl_dbgu_device;
|
|
configure_dbgu_pins();
|
|
break;
|
|
case AT91SAM9RL_ID_US0:
|
|
pdev = &at91sam9rl_uart0_device;
|
|
configure_usart0_pins(pins);
|
|
break;
|
|
case AT91SAM9RL_ID_US1:
|
|
pdev = &at91sam9rl_uart1_device;
|
|
configure_usart1_pins(pins);
|
|
break;
|
|
case AT91SAM9RL_ID_US2:
|
|
pdev = &at91sam9rl_uart2_device;
|
|
configure_usart2_pins(pins);
|
|
break;
|
|
case AT91SAM9RL_ID_US3:
|
|
pdev = &at91sam9rl_uart3_device;
|
|
configure_usart3_pins(pins);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
pdata = pdev->dev.platform_data;
|
|
pdata->num = portnr; /* update to mapped ID */
|
|
|
|
if (portnr < ATMEL_MAX_UART)
|
|
at91_uarts[portnr] = pdev;
|
|
}
|
|
|
|
void __init at91_add_device_serial(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ATMEL_MAX_UART; i++) {
|
|
if (at91_uarts[i])
|
|
platform_device_register(at91_uarts[i]);
|
|
}
|
|
}
|
|
#else
|
|
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
|
|
void __init at91_add_device_serial(void) {}
|
|
#endif
|
|
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* These devices are always present and don't need any board-specific
|
|
* setup.
|
|
*/
|
|
static int __init at91_add_standard_devices(void)
|
|
{
|
|
at91_add_device_hdmac();
|
|
at91_add_device_rtc();
|
|
at91_add_device_rtt();
|
|
at91_add_device_watchdog();
|
|
at91_add_device_tc();
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(at91_add_standard_devices);
|