diff options
Diffstat (limited to 'arch/arm/mach-at91/at91sam9g45_devices.c')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9g45_devices.c | 1230 |
1 files changed, 1230 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c new file mode 100644 index 000000000000..d746e8621bc2 --- /dev/null +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -0,0 +1,1230 @@ +/* + * On-Chip devices setup code for the AT91SAM9G45 family + * + * Copyright (C) 2009 Atmel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/i2c-gpio.h> + +#include <linux/fb.h> +#include <video/atmel_lcdc.h> + +#include <mach/board.h> +#include <mach/gpio.h> +#include <mach/at91sam9g45.h> +#include <mach/at91sam9g45_matrix.h> +#include <mach/at91sam9_smc.h> + +#include "generic.h" + + +/* -------------------------------------------------------------------- + * USB Host (OHCI) + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) +static u64 ohci_dmamask = DMA_BIT_MASK(32); +static struct at91_usbh_data usbh_ohci_data; + +static struct resource usbh_ohci_resources[] = { + [0] = { + .start = AT91SAM9G45_OHCI_BASE, + .end = AT91SAM9G45_OHCI_BASE + SZ_1M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_UHPHS, + .end = AT91SAM9G45_ID_UHPHS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91_usbh_ohci_device = { + .name = "at91_ohci", + .id = -1, + .dev = { + .dma_mask = &ohci_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &usbh_ohci_data, + }, + .resource = usbh_ohci_resources, + .num_resources = ARRAY_SIZE(usbh_ohci_resources), +}; + +void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) +{ + int i; + + if (!data) + return; + + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) + at91_set_gpio_output(data->vbus_pin[i], 0); + } + + usbh_ohci_data = *data; + platform_device_register(&at91_usbh_ohci_device); +} +#else +void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * USB HS Device (Gadget) + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE) +static struct resource usba_udc_resources[] = { + [0] = { + .start = AT91SAM9G45_UDPHS_FIFO, + .end = AT91SAM9G45_UDPHS_FIFO + SZ_512K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_BASE_UDPHS, + .end = AT91SAM9G45_BASE_UDPHS + SZ_1K - 1, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = AT91SAM9G45_ID_UDPHS, + .end = AT91SAM9G45_ID_UDPHS, + .flags = IORESOURCE_IRQ, + }, +}; + +#define EP(nam, idx, maxpkt, maxbk, dma, isoc) \ + [idx] = { \ + .name = nam, \ + .index = idx, \ + .fifo_size = maxpkt, \ + .nr_banks = maxbk, \ + .can_dma = dma, \ + .can_isoc = isoc, \ + } + +static struct usba_ep_data usba_udc_ep[] __initdata = { + EP("ep0", 0, 64, 1, 0, 0), + EP("ep1", 1, 1024, 2, 1, 1), + EP("ep2", 2, 1024, 2, 1, 1), + EP("ep3", 3, 1024, 3, 1, 0), + EP("ep4", 4, 1024, 3, 1, 0), + EP("ep5", 5, 1024, 3, 1, 1), + EP("ep6", 6, 1024, 3, 1, 1), +}; + +#undef EP + +/* + * pdata doesn't have room for any endpoints, so we need to + * append room for the ones we need right after it. + */ +static struct { + struct usba_platform_data pdata; + struct usba_ep_data ep[7]; +} usba_udc_data; + +static struct platform_device at91_usba_udc_device = { + .name = "atmel_usba_udc", + .id = -1, + .dev = { + .platform_data = &usba_udc_data.pdata, + }, + .resource = usba_udc_resources, + .num_resources = ARRAY_SIZE(usba_udc_resources), +}; + +void __init at91_add_device_usba(struct usba_platform_data *data) +{ + usba_udc_data.pdata.vbus_pin = -EINVAL; + usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep); + memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));; + + if (data && data->vbus_pin > 0) { + at91_set_gpio_input(data->vbus_pin, 0); + at91_set_deglitch(data->vbus_pin, 1); + usba_udc_data.pdata.vbus_pin = data->vbus_pin; + } + + /* Pullup pin is handled internally by USB device peripheral */ + + /* Clocks */ + at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk"); + at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk"); + + platform_device_register(&at91_usba_udc_device); +} +#else +void __init at91_add_device_usba(struct usba_platform_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * Ethernet + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE) +static u64 eth_dmamask = DMA_BIT_MASK(32); +static struct at91_eth_data eth_data; + +static struct resource eth_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_EMAC, + .end = AT91SAM9G45_BASE_EMAC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_EMAC, + .end = AT91SAM9G45_ID_EMAC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_eth_device = { + .name = "macb", + .id = -1, + .dev = { + .dma_mask = ð_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = ð_data, + }, + .resource = eth_resources, + .num_resources = ARRAY_SIZE(eth_resources), +}; + +void __init at91_add_device_eth(struct at91_eth_data *data) +{ + if (!data) + return; + + if (data->phy_irq_pin) { + at91_set_gpio_input(data->phy_irq_pin, 0); + at91_set_deglitch(data->phy_irq_pin, 1); + } + + /* Pins used for MII and RMII */ + at91_set_A_periph(AT91_PIN_PA17, 0); /* ETXCK_EREFCK */ + at91_set_A_periph(AT91_PIN_PA15, 0); /* ERXDV */ + at91_set_A_periph(AT91_PIN_PA12, 0); /* ERX0 */ + at91_set_A_periph(AT91_PIN_PA13, 0); /* ERX1 */ + at91_set_A_periph(AT91_PIN_PA16, 0); /* ERXER */ + at91_set_A_periph(AT91_PIN_PA14, 0); /* ETXEN */ + at91_set_A_periph(AT91_PIN_PA10, 0); /* ETX0 */ + at91_set_A_periph(AT91_PIN_PA11, 0); /* ETX1 */ + at91_set_A_periph(AT91_PIN_PA19, 0); /* EMDIO */ + at91_set_A_periph(AT91_PIN_PA18, 0); /* EMDC */ + + if (!data->is_rmii) { + at91_set_B_periph(AT91_PIN_PA29, 0); /* ECRS */ + at91_set_B_periph(AT91_PIN_PA30, 0); /* ECOL */ + at91_set_B_periph(AT91_PIN_PA8, 0); /* ERX2 */ + at91_set_B_periph(AT91_PIN_PA9, 0); /* ERX3 */ + at91_set_B_periph(AT91_PIN_PA28, 0); /* ERXCK */ + at91_set_B_periph(AT91_PIN_PA6, 0); /* ETX2 */ + at91_set_B_periph(AT91_PIN_PA7, 0); /* ETX3 */ + at91_set_B_periph(AT91_PIN_PA27, 0); /* ETXER */ + } + + eth_data = *data; + platform_device_register(&at91sam9g45_eth_device); +} +#else +void __init at91_add_device_eth(struct at91_eth_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * NAND / SmartMedia + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE) +static struct atmel_nand_data nand_data; + +#define NAND_BASE AT91_CHIPSELECT_3 + +static struct resource nand_resources[] = { + [0] = { + .start = NAND_BASE, + .end = NAND_BASE + SZ_256M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_BASE_SYS + AT91_ECC, + .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9g45_nand_device = { + .name = "atmel_nand", + .id = -1, + .dev = { + .platform_data = &nand_data, + }, + .resource = nand_resources, + .num_resources = ARRAY_SIZE(nand_resources), +}; + +void __init at91_add_device_nand(struct atmel_nand_data *data) +{ + unsigned long csa; + + if (!data) + return; + + csa = at91_sys_read(AT91_MATRIX_EBICSA); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA); + + /* enable pin */ + if (data->enable_pin) + at91_set_gpio_output(data->enable_pin, 1); + + /* ready/busy pin */ + if (data->rdy_pin) + at91_set_gpio_input(data->rdy_pin, 1); + + /* card detect pin */ + if (data->det_pin) + at91_set_gpio_input(data->det_pin, 1); + + nand_data = *data; + platform_device_register(&at91sam9g45_nand_device); +} +#else +void __init at91_add_device_nand(struct atmel_nand_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * TWI (i2c) + * -------------------------------------------------------------------- */ + +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) +static struct i2c_gpio_platform_data pdata_i2c0 = { + .sda_pin = AT91_PIN_PA20, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA21, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9g45_twi0_device = { + .name = "i2c-gpio", + .id = 0, + .dev.platform_data = &pdata_i2c0, +}; + +static struct i2c_gpio_platform_data pdata_i2c1 = { + .sda_pin = AT91_PIN_PB10, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PB11, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9g45_twi1_device = { + .name = "i2c-gpio", + .id = 1, + .dev.platform_data = &pdata_i2c1, +}; + +void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices) +{ + i2c_register_board_info(i2c_id, devices, nr_devices); + + if (i2c_id == 0) { + at91_set_GPIO_periph(AT91_PIN_PA20, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA20, 1); + + at91_set_GPIO_periph(AT91_PIN_PA21, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA21, 1); + + platform_device_register(&at91sam9g45_twi0_device); + } else { + at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PB10, 1); + + at91_set_GPIO_periph(AT91_PIN_PB11, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PB11, 1); + + platform_device_register(&at91sam9g45_twi1_device); + } +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +static struct resource twi0_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_TWI0, + .end = AT91SAM9G45_BASE_TWI0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_TWI0, + .end = AT91SAM9G45_ID_TWI0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_twi0_device = { + .name = "at91_i2c", + .id = 0, + .resource = twi0_resources, + .num_resources = ARRAY_SIZE(twi0_resources), +}; + +static struct resource twi1_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_TWI1, + .end = AT91SAM9G45_BASE_TWI1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_TWI1, + .end = AT91SAM9G45_ID_TWI1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_twi1_device = { + .name = "at91_i2c", + .id = 1, + .resource = twi1_resources, + .num_resources = ARRAY_SIZE(twi1_resources), +}; + +void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices) +{ + i2c_register_board_info(i2c_id, devices, nr_devices); + + /* pins used for TWI interface */ + if (i2c_id == 0) { + at91_set_A_periph(AT91_PIN_PA20, 0); /* TWD */ + at91_set_multi_drive(AT91_PIN_PA20, 1); + + at91_set_A_periph(AT91_PIN_PA21, 0); /* TWCK */ + at91_set_multi_drive(AT91_PIN_PA21, 1); + + platform_device_register(&at91sam9g45_twi0_device); + } else { + at91_set_A_periph(AT91_PIN_PB10, 0); /* TWD */ + at91_set_multi_drive(AT91_PIN_PB10, 1); + + at91_set_A_periph(AT91_PIN_PB11, 0); /* TWCK */ + at91_set_multi_drive(AT91_PIN_PB11, 1); + + platform_device_register(&at91sam9g45_twi1_device); + } +} +#else +void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices) {} +#endif + + +/* -------------------------------------------------------------------- + * SPI + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) +static u64 spi_dmamask = DMA_BIT_MASK(32); + +static struct resource spi0_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_SPI0, + .end = AT91SAM9G45_BASE_SPI0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_SPI0, + .end = AT91SAM9G45_ID_SPI0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_spi0_device = { + .name = "atmel_spi", + .id = 0, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = spi0_resources, + .num_resources = ARRAY_SIZE(spi0_resources), +}; + +static const unsigned spi0_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PB18, AT91_PIN_PB19, AT91_PIN_PD27 }; + +static struct resource spi1_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_SPI1, + .end = AT91SAM9G45_BASE_SPI1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_SPI1, + .end = AT91SAM9G45_ID_SPI1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_spi1_device = { + .name = "atmel_spi", + .id = 1, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = spi1_resources, + .num_resources = ARRAY_SIZE(spi1_resources), +}; + +static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB17, AT91_PIN_PD28, AT91_PIN_PD18, AT91_PIN_PD19 }; + +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) +{ + int i; + unsigned long cs_pin; + short enable_spi0 = 0; + short enable_spi1 = 0; + + /* Choose SPI chip-selects */ + for (i = 0; i < nr_devices; i++) { + if (devices[i].controller_data) + cs_pin = (unsigned long) devices[i].controller_data; + else if (devices[i].bus_num == 0) + cs_pin = spi0_standard_cs[devices[i].chip_select]; + else + cs_pin = spi1_standard_cs[devices[i].chip_select]; + + if (devices[i].bus_num == 0) + enable_spi0 = 1; + else + enable_spi1 = 1; + + /* enable chip-select pin */ + at91_set_gpio_output(cs_pin, 1); + + /* pass chip-select pin to driver */ + devices[i].controller_data = (void *) cs_pin; + } + + spi_register_board_info(devices, nr_devices); + + /* Configure SPI bus(es) */ + if (enable_spi0) { + at91_set_A_periph(AT91_PIN_PB0, 0); /* SPI0_MISO */ + at91_set_A_periph(AT91_PIN_PB1, 0); /* SPI0_MOSI */ + at91_set_A_periph(AT91_PIN_PB2, 0); /* SPI0_SPCK */ + + at91_clock_associate("spi0_clk", &at91sam9g45_spi0_device.dev, "spi_clk"); + platform_device_register(&at91sam9g45_spi0_device); + } + if (enable_spi1) { + at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_MISO */ + at91_set_A_periph(AT91_PIN_PB15, 0); /* SPI1_MOSI */ + at91_set_A_periph(AT91_PIN_PB16, 0); /* SPI1_SPCK */ + + at91_clock_associate("spi1_clk", &at91sam9g45_spi1_device.dev, "spi_clk"); + platform_device_register(&at91sam9g45_spi1_device); + } +} +#else +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {} +#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 = AT91SAM9G45_LCDC_BASE, + .end = AT91SAM9G45_LCDC_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_LCDC, + .end = AT91SAM9G45_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_A_periph(AT91_PIN_PE0, 0); /* LCDDPWR */ + + at91_set_A_periph(AT91_PIN_PE2, 0); /* LCDCC */ + at91_set_A_periph(AT91_PIN_PE3, 0); /* LCDVSYNC */ + at91_set_A_periph(AT91_PIN_PE4, 0); /* LCDHSYNC */ + at91_set_A_periph(AT91_PIN_PE5, 0); /* LCDDOTCK */ + at91_set_A_periph(AT91_PIN_PE6, 0); /* LCDDEN */ + at91_set_A_periph(AT91_PIN_PE7, 0); /* LCDD0 */ + at91_set_A_periph(AT91_PIN_PE8, 0); /* LCDD1 */ + at91_set_A_periph(AT91_PIN_PE9, 0); /* LCDD2 */ + at91_set_A_periph(AT91_PIN_PE10, 0); /* LCDD3 */ + at91_set_A_periph(AT91_PIN_PE11, 0); /* LCDD4 */ + at91_set_A_periph(AT91_PIN_PE12, 0); /* LCDD5 */ + at91_set_A_periph(AT91_PIN_PE13, 0); /* LCDD6 */ + at91_set_A_periph(AT91_PIN_PE14, 0); /* LCDD7 */ + at91_set_A_periph(AT91_PIN_PE15, 0); /* LCDD8 */ + at91_set_A_periph(AT91_PIN_PE16, 0); /* LCDD9 */ + at91_set_A_periph(AT91_PIN_PE17, 0); /* LCDD10 */ + at91_set_A_periph(AT91_PIN_PE18, 0); /* LCDD11 */ + at91_set_A_periph(AT91_PIN_PE19, 0); /* LCDD12 */ + at91_set_A_periph(AT91_PIN_PE20, 0); /* LCDD13 */ + at91_set_A_periph(AT91_PIN_PE21, 0); /* LCDD14 */ + at91_set_A_periph(AT91_PIN_PE22, 0); /* LCDD15 */ + at91_set_A_periph(AT91_PIN_PE23, 0); /* LCDD16 */ + at91_set_A_periph(AT91_PIN_PE24, 0); /* LCDD17 */ + at91_set_A_periph(AT91_PIN_PE25, 0); /* LCDD18 */ + at91_set_A_periph(AT91_PIN_PE26, 0); /* LCDD19 */ + at91_set_A_periph(AT91_PIN_PE27, 0); /* LCDD20 */ + at91_set_A_periph(AT91_PIN_PE28, 0); /* LCDD21 */ + at91_set_A_periph(AT91_PIN_PE29, 0); /* LCDD22 */ + at91_set_A_periph(AT91_PIN_PE30, 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 tcb0_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_TCB0, + .end = AT91SAM9G45_BASE_TCB0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_TCB, + .end = AT91SAM9G45_ID_TCB, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_tcb0_device = { + .name = "atmel_tcb", + .id = 0, + .resource = tcb0_resources, + .num_resources = ARRAY_SIZE(tcb0_resources), +}; + +/* TCB1 begins with TC3 */ +static struct resource tcb1_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_TCB1, + .end = AT91SAM9G45_BASE_TCB1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_TCB, + .end = AT91SAM9G45_ID_TCB, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_tcb1_device = { + .name = "atmel_tcb", + .id = 1, + .resource = tcb1_resources, + .num_resources = ARRAY_SIZE(tcb1_resources), +}; + +static void __init at91_add_device_tc(void) +{ + /* this chip has one clock and irq for all six TC channels */ + at91_clock_associate("tcb_clk", &at91sam9g45_tcb0_device.dev, "t0_clk"); + platform_device_register(&at91sam9g45_tcb0_device); + at91_clock_associate("tcb_clk", &at91sam9g45_tcb1_device.dev, "t0_clk"); + platform_device_register(&at91sam9g45_tcb1_device); +} +#else +static void __init at91_add_device_tc(void) { } +#endif + + +/* -------------------------------------------------------------------- + * RTC + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE) +static struct platform_device at91sam9g45_rtc_device = { + .name = "at91_rtc", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_rtc(void) +{ + platform_device_register(&at91sam9g45_rtc_device); +} +#else +static void __init at91_add_device_rtc(void) {} +#endif + + +/* -------------------------------------------------------------------- + * RTT + * -------------------------------------------------------------------- */ + +static struct resource rtt_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT, + .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9g45_rtt_device = { + .name = "at91_rtt", + .id = 0, + .resource = rtt_resources, + .num_resources = ARRAY_SIZE(rtt_resources), +}; + +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91sam9g45_rtt_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9g45_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9g45_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * PWM + * --------------------------------------------------------------------*/ + +#if defined(CONFIG_ATMEL_PWM) || defined(CONFIG_ATMEL_PWM_MODULE) +static u32 pwm_mask; + +static struct resource pwm_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_PWMC, + .end = AT91SAM9G45_BASE_PWMC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_PWMC, + .end = AT91SAM9G45_ID_PWMC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_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_PD24, 1); /* enable PWM0 */ + + if (mask & (1 << AT91_PWM1)) + at91_set_B_periph(AT91_PIN_PD31, 1); /* enable PWM1 */ + + if (mask & (1 << AT91_PWM2)) + at91_set_B_periph(AT91_PIN_PD26, 1); /* enable PWM2 */ + + if (mask & (1 << AT91_PWM3)) + at91_set_B_periph(AT91_PIN_PD0, 1); /* enable PWM3 */ + + pwm_mask = mask; + + platform_device_register(&at91sam9g45_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 = AT91SAM9G45_BASE_SSC0, + .end = AT91SAM9G45_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_SSC0, + .end = AT91SAM9G45_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_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_PD1, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PD0, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PD2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PD3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PD4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PD5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_SSC1, + .end = AT91SAM9G45_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_SSC1, + .end = AT91SAM9G45_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9g45_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_A_periph(AT91_PIN_PD14, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PD12, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PD10, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PD11, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PD13, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PD15, 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 AT91SAM9G45_ID_SSC0: + pdev = &at91sam9g45_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9G45_ID_SSC1: + pdev = &at91sam9g45_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + 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 = AT91_VA_BASE_SYS + AT91_DBGU, + .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_SYS, + .end = AT91_ID_SYS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct atmel_uart_data dbgu_data = { + .use_dma_tx = 0, + .use_dma_rx = 0, + .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), +}; + +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + +static struct platform_device at91sam9g45_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_PB12, 0); /* DRXD */ + at91_set_A_periph(AT91_PIN_PB13, 1); /* DTXD */ +} + +static struct resource uart0_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_US0, + .end = AT91SAM9G45_BASE_US0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_US0, + .end = AT91SAM9G45_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 at91sam9g45_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_PB19, 1); /* TXD0 */ + at91_set_A_periph(AT91_PIN_PB18, 0); /* RXD0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PB17, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PB15, 0); /* CTS0 */ +} + +static struct resource uart1_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_US1, + .end = AT91SAM9G45_BASE_US1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_US1, + .end = AT91SAM9G45_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 at91sam9g45_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_PB4, 1); /* TXD1 */ + at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PD16, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PD17, 0); /* CTS1 */ +} + +static struct resource uart2_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_US2, + .end = AT91SAM9G45_BASE_US2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_US2, + .end = AT91SAM9G45_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 at91sam9g45_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_PB6, 1); /* TXD2 */ + at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PC9, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PC11, 0); /* CTS2 */ +} + +static struct resource uart3_resources[] = { + [0] = { + .start = AT91SAM9G45_BASE_US3, + .end = AT91SAM9G45_BASE_US3 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9G45_ID_US3, + .end = AT91SAM9G45_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 at91sam9g45_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_PB8, 1); /* TXD3 */ + at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD3 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PA23, 0); /* RTS3 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PA24, 0); /* CTS3 */ +} + +static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +struct platform_device *atmel_default_console_device; /* the serial console device */ + +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9g45_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9G45_ID_US0: + pdev = &at91sam9g45_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9G45_ID_US1: + pdev = &at91sam9g45_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9G45_ID_US2: + pdev = &at91sam9g45_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + case AT91SAM9G45_ID_US3: + pdev = &at91sam9g45_uart3_device; + configure_usart3_pins(pins); + at91_clock_associate("usart3_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; +} + +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]); + } + + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} +#else +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} +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_rtc(); + at91_add_device_rtt(); + at91_add_device_watchdog(); + at91_add_device_tc(); + return 0; +} + +arch_initcall(at91_add_standard_devices); |
