AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity
6a4dae5e13
kernel_optimize_test/arch/arm/mach-at91/at91sam9263_devices.c
Linus Torvalds 12250d843e Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux 
Pull i2c-embedded changes from Wolfram Sang:
 "The changes for i2c-embedded include:

   - massive rework of the omap driver
   - massive rework of the at91 driver.  In fact, the old driver gets
     removed; I am okay with this approach since the old driver was
     depending on BROKEN and its limitations made it practically
     unusable, so people used bitbanging instead.  But even if there are
     users, there is no platform_data or module parameter which would
     need to be converted.  It is just another driver doing I2C
     transfers, just way better.  Modifications of arch/arm/at91 related
     files have proper acks from the maintainer.
   - new driver for R-Car I2C
   - devicetree and generic_clock conversions and fixes
   - usual driver fixes and changes.

  The rework patches have come a long way and lots of people have been
  involved in creating/testing them.  Most patches have been in
  linux-next at least since 3.6-rc5.  A few have been added in the last
  week, I have to admit.

  An unexpected (but welcome :)) peak in private life is the cause for
  that.  The "late" patches shouldn't cause any merge conflicts and I
  will have a special eye on them during the stabilization phase.  This
  is an exception and I want to have the patches in place properly in
  time again for the next kernels."

* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (44 commits)
  MXS: Implement DMA support into mxs-i2c
  i2c: add Renesas R-Car I2C driver
  i2c: s3c2410: use clk_prepare_enable and clk_disable_unprepare
  ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints
  i2c: nomadik: Add Device Tree support to the Nomadik I2C driver
  i2c: algo: pca: Fix chip reset function for PCA9665
  i2c: mpc: Wait for STOP to hit the bus
  i2c: davinci: preparation for switch to common clock framework
  omap-i2c: fix incorrect log message when using a device tree
  i2c: omap: sanitize exit path
  i2c: omap: switch over to autosuspend API
  i2c: omap: remove unnecessary pm_runtime_suspended check
  i2c: omap: switch to threaded IRQ support
  i2c: omap: remove redundant status read
  i2c: omap: get rid of the "complete" label
  i2c: omap: resize fifos before each message
  i2c: omap: simplify IRQ exit path
  i2c: omap: always return IRQ_HANDLED
  i2c: omap: simplify errata check
  i2c: omap: bus: add a receiver flag
  ...
2012-10-11 10:27:51 +09:00

1544 lines
39 KiB
C
Raw Blame History

/*
* arch/arm/mach-at91/at91sam9263_devices.c
*
* Copyright (C) 2007 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/gpio.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/at91sam9263.h>
#include <mach/at91sam9263_matrix.h>
#include <mach/at91_matrix.h>
#include <mach/at91sam9_smc.h>
#include "generic.h"
/* --------------------------------------------------------------------
* USB Host
* -------------------------------------------------------------------- */
#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_data;
static struct resource usbh_resources[] = {
[0] = {
.start = AT91SAM9263_UHP_BASE,
.end = AT91SAM9263_UHP_BASE + SZ_1M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_UHP,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_UHP,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91_usbh_device = {
.name = "at91_ohci",
.id = -1,
.dev = {
.dma_mask = &ohci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &usbh_data,
},
.resource = usbh_resources,
.num_resources = ARRAY_SIZE(usbh_resources),
};
void __init at91_add_device_usbh(struct at91_usbh_data *data)
{
int i;
if (!data)
return;
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (gpio_is_valid(data->vbus_pin[i]))
at91_set_gpio_output(data->vbus_pin[i],
data->vbus_pin_active_low[i]);
}
/* Enable overcurrent notification */
for (i = 0; i < data->ports; i++) {
if (data->overcurrent_pin[i])
at91_set_gpio_input(data->overcurrent_pin[i], 1);
}
usbh_data = *data;
platform_device_register(&at91_usbh_device);
}
#else
void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
#endif
/* --------------------------------------------------------------------
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_UDP,
.end = AT91SAM9263_BASE_UDP + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_UDP,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_UDP,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91_udc_device = {
.name = "at91_udc",
.id = -1,
.dev = {
.platform_data = &udc_data,
},
.resource = udc_resources,
.num_resources = ARRAY_SIZE(udc_resources),
};
void __init at91_add_device_udc(struct at91_udc_data *data)
{
if (!data)
return;
if (gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
/* Pullup pin is handled internally by USB device peripheral */
udc_data = *data;
platform_device_register(&at91_udc_device);
}
#else
void __init at91_add_device_udc(struct at91_udc_data *data) {}
#endif
/* --------------------------------------------------------------------
* Ethernet
* -------------------------------------------------------------------- */
#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
static u64 eth_dmamask = DMA_BIT_MASK(32);
static struct macb_platform_data eth_data;
static struct resource eth_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_EMAC,
.end = AT91SAM9263_BASE_EMAC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_EMAC,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_EMAC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_eth_device = {
.name = "macb",
.id = -1,
.dev = {
.dma_mask = &eth_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &eth_data,
},
.resource = eth_resources,
.num_resources = ARRAY_SIZE(eth_resources),
};
void __init at91_add_device_eth(struct macb_platform_data *data)
{
if (!data)
return;
if (gpio_is_valid(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_PE21, 0); /* ETXCK_EREFCK */
at91_set_B_periph(AT91_PIN_PC25, 0); /* ERXDV */
at91_set_A_periph(AT91_PIN_PE25, 0); /* ERX0 */
at91_set_A_periph(AT91_PIN_PE26, 0); /* ERX1 */
at91_set_A_periph(AT91_PIN_PE27, 0); /* ERXER */
at91_set_A_periph(AT91_PIN_PE28, 0); /* ETXEN */
at91_set_A_periph(AT91_PIN_PE23, 0); /* ETX0 */
at91_set_A_periph(AT91_PIN_PE24, 0); /* ETX1 */
at91_set_A_periph(AT91_PIN_PE30, 0); /* EMDIO */
at91_set_A_periph(AT91_PIN_PE29, 0); /* EMDC */
if (!data->is_rmii) {
at91_set_A_periph(AT91_PIN_PE22, 0); /* ECRS */
at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
}
eth_data = *data;
platform_device_register(&at91sam9263_eth_device);
}
#else
void __init at91_add_device_eth(struct macb_platform_data *data) {}
#endif
/* --------------------------------------------------------------------
* MMC / SD
* -------------------------------------------------------------------- */
#if IS_ENABLED(CONFIG_MMC_ATMELMCI)
static u64 mmc_dmamask = DMA_BIT_MASK(32);
static struct mci_platform_data mmc0_data, mmc1_data;
static struct resource mmc0_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_MCI0,
.end = AT91SAM9263_BASE_MCI0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI0,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_mmc0_device = {
.name = "atmel_mci",
.id = 0,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &mmc0_data,
},
.resource = mmc0_resources,
.num_resources = ARRAY_SIZE(mmc0_resources),
};
static struct resource mmc1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_MCI1,
.end = AT91SAM9263_BASE_MCI1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI1,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_mmc1_device = {
.name = "atmel_mci",
.id = 1,
.dev = {
.dma_mask = &mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &mmc1_data,
},
.resource = mmc1_resources,
.num_resources = ARRAY_SIZE(mmc1_resources),
};
void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
{
unsigned int i;
unsigned int slot_count = 0;
if (!data)
return;
for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (!data->slot[i].bus_width)
continue;
/* input/irq */
if (gpio_is_valid(data->slot[i].detect_pin)) {
at91_set_gpio_input(data->slot[i].detect_pin,
1);
at91_set_deglitch(data->slot[i].detect_pin,
1);
}
if (gpio_is_valid(data->slot[i].wp_pin))
at91_set_gpio_input(data->slot[i].wp_pin, 1);
if (mmc_id == 0) { /* MCI0 */
switch (i) {
case 0: /* slot A */
/* CMD */
at91_set_A_periph(AT91_PIN_PA1, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA0, 1);
if (data->slot[i].bus_width == 4) {
at91_set_A_periph(AT91_PIN_PA3, 1);
at91_set_A_periph(AT91_PIN_PA4, 1);
at91_set_A_periph(AT91_PIN_PA5, 1);
}
slot_count++;
break;
case 1: /* slot B */
/* CMD */
at91_set_A_periph(AT91_PIN_PA16, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA17, 1);
if (data->slot[i].bus_width == 4) {
at91_set_A_periph(AT91_PIN_PA18, 1);
at91_set_A_periph(AT91_PIN_PA19, 1);
at91_set_A_periph(AT91_PIN_PA20, 1);
}
slot_count++;
break;
default:
printk(KERN_ERR
"AT91: SD/MMC slot %d not available\n", i);
break;
}
if (slot_count) {
/* CLK */
at91_set_A_periph(AT91_PIN_PA12, 0);
mmc0_data = *data;
platform_device_register(&at91sam9263_mmc0_device);
}
} else if (mmc_id == 1) { /* MCI1 */
switch (i) {
case 0: /* slot A */
/* CMD */
at91_set_A_periph(AT91_PIN_PA7, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA8, 1);
if (data->slot[i].bus_width == 4) {
at91_set_A_periph(AT91_PIN_PA9, 1);
at91_set_A_periph(AT91_PIN_PA10, 1);
at91_set_A_periph(AT91_PIN_PA11, 1);
}
slot_count++;
break;
case 1: /* slot B */
/* CMD */
at91_set_A_periph(AT91_PIN_PA21, 1);
/* DAT0, maybe DAT1..DAT3 */
at91_set_A_periph(AT91_PIN_PA22, 1);
if (data->slot[i].bus_width == 4) {
at91_set_A_periph(AT91_PIN_PA23, 1);
at91_set_A_periph(AT91_PIN_PA24, 1);
at91_set_A_periph(AT91_PIN_PA25, 1);
}
slot_count++;
break;
default:
printk(KERN_ERR
"AT91: SD/MMC slot %d not available\n", i);
break;
}
if (slot_count) {
/* CLK */
at91_set_A_periph(AT91_PIN_PA6, 0);
mmc1_data = *data;
platform_device_register(&at91sam9263_mmc1_device);
}
}
}
}
#else
void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
#endif
/* --------------------------------------------------------------------
* Compact Flash (PCMCIA or IDE)
* -------------------------------------------------------------------- */
#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
static struct at91_cf_data cf0_data;
static struct resource cf0_resources[] = {
[0] = {
.start = AT91_CHIPSELECT_4,
.end = AT91_CHIPSELECT_4 + SZ_256M - 1,
.flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
}
};
static struct platform_device cf0_device = {
.id = 0,
.dev = {
.platform_data = &cf0_data,
},
.resource = cf0_resources,
.num_resources = ARRAY_SIZE(cf0_resources),
};
static struct at91_cf_data cf1_data;
static struct resource cf1_resources[] = {
[0] = {
.start = AT91_CHIPSELECT_5,
.end = AT91_CHIPSELECT_5 + SZ_256M - 1,
.flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
}
};
static struct platform_device cf1_device = {
.id = 1,
.dev = {
.platform_data = &cf1_data,
},
.resource = cf1_resources,
.num_resources = ARRAY_SIZE(cf1_resources),
};
void __init at91_add_device_cf(struct at91_cf_data *data)
{
unsigned long ebi0_csa;
struct platform_device *pdev;
if (!data)
return;
/*
* assign CS4 or CS5 to SMC with Compact Flash logic support,
* we assume SMC timings are configured by board code,
* except True IDE where timings are controlled by driver
*/
ebi0_csa = at91_matrix_read(AT91_MATRIX_EBI0CSA);
switch (data->chipselect) {
case 4:
at91_set_A_periph(AT91_PIN_PD6, 0); /* EBI0_NCS4/CFCS0 */
ebi0_csa |= AT91_MATRIX_EBI0_CS4A_SMC_CF1;
cf0_data = *data;
pdev = &cf0_device;
break;
case 5:
at91_set_A_periph(AT91_PIN_PD7, 0); /* EBI0_NCS5/CFCS1 */
ebi0_csa |= AT91_MATRIX_EBI0_CS5A_SMC_CF2;
cf1_data = *data;
pdev = &cf1_device;
break;
default:
printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
data->chipselect);
return;
}
at91_matrix_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (gpio_is_valid(data->irq_pin)) {
at91_set_gpio_input(data->irq_pin, 1);
at91_set_deglitch(data->irq_pin, 1);
}
if (gpio_is_valid(data->vcc_pin))
/* initially off */
at91_set_gpio_output(data->vcc_pin, 0);
/* enable EBI controlled pins */
at91_set_A_periph(AT91_PIN_PD5, 1); /* NWAIT */
at91_set_A_periph(AT91_PIN_PD8, 0); /* CFCE1 */
at91_set_A_periph(AT91_PIN_PD9, 0); /* CFCE2 */
at91_set_A_periph(AT91_PIN_PD14, 0); /* CFNRW */
pdev->name = (data->flags & AT91_CF_TRUE_IDE) ? "pata_at91" : "at91_cf";
platform_device_register(pdev);
}
#else
void __init at91_add_device_cf(struct at91_cf_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 = AT91SAM9263_BASE_ECC0,
.end = AT91SAM9263_BASE_ECC0 + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9263_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_matrix_read(AT91_MATRIX_EBI0CSA);
at91_matrix_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
platform_device_register(&at91sam9263_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 = {
.sda_pin = AT91_PIN_PB4,
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PB5,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
};
static struct platform_device at91sam9263_twi_device = {
.name = "i2c-gpio",
.id = -1,
.dev.platform_data = &pdata,
};
void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
{
at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
at91_set_multi_drive(AT91_PIN_PB4, 1);
at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
at91_set_multi_drive(AT91_PIN_PB5, 1);
i2c_register_board_info(0, devices, nr_devices);
platform_device_register(&at91sam9263_twi_device);
}
#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
static struct resource twi_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_TWI,
.end = AT91SAM9263_BASE_TWI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_TWI,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_TWI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_twi_device = {
.name = "i2c-at91sam9260",
.id = -1,
.resource = twi_resources,
.num_resources = ARRAY_SIZE(twi_resources),
};
void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
{
/* pins used for TWI interface */
at91_set_A_periph(AT91_PIN_PB4, 0); /* TWD */
at91_set_multi_drive(AT91_PIN_PB4, 1);
at91_set_A_periph(AT91_PIN_PB5, 0); /* TWCK */
at91_set_multi_drive(AT91_PIN_PB5, 1);
i2c_register_board_info(0, devices, nr_devices);
platform_device_register(&at91sam9263_twi_device);
}
#else
void __init at91_add_device_i2c(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 = AT91SAM9263_BASE_SPI0,
.end = AT91SAM9263_BASE_SPI0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI0,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_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_PA5, AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PB11 };
static struct resource spi1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_SPI1,
.end = AT91SAM9263_BASE_SPI1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI1,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_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_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
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 (!gpio_is_valid(cs_pin))
continue;
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_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
platform_device_register(&at91sam9263_spi0_device);
}
if (enable_spi1) {
at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
platform_device_register(&at91sam9263_spi1_device);
}
}
#else
void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
#endif
/* --------------------------------------------------------------------
* AC97
* -------------------------------------------------------------------- */
#if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
static u64 ac97_dmamask = DMA_BIT_MASK(32);
static struct ac97c_platform_data ac97_data;
static struct resource ac97_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_AC97C,
.end = AT91SAM9263_BASE_AC97C + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_AC97C,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_AC97C,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_ac97_device = {
.name = "atmel_ac97c",
.id = 0,
.dev = {
.dma_mask = &ac97_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &ac97_data,
},
.resource = ac97_resources,
.num_resources = ARRAY_SIZE(ac97_resources),
};
void __init at91_add_device_ac97(struct ac97c_platform_data *data)
{
if (!data)
return;
at91_set_A_periph(AT91_PIN_PB0, 0); /* AC97FS */
at91_set_A_periph(AT91_PIN_PB1, 0); /* AC97CK */
at91_set_A_periph(AT91_PIN_PB2, 0); /* AC97TX */
at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */
/* reset */
if (gpio_is_valid(data->reset_pin))
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *data;
platform_device_register(&at91sam9263_ac97_device);
}
#else
void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
#endif
/* --------------------------------------------------------------------
* CAN Controller
* -------------------------------------------------------------------- */
#if defined(CONFIG_CAN_AT91) || defined(CONFIG_CAN_AT91_MODULE)
static struct resource can_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_CAN,
.end = AT91SAM9263_BASE_CAN + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_CAN,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_CAN,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_can_device = {
.name = "at91_can",
.id = -1,
.resource = can_resources,
.num_resources = ARRAY_SIZE(can_resources),
};
void __init at91_add_device_can(struct at91_can_data *data)
{
at91_set_A_periph(AT91_PIN_PA13, 0); /* CANTX */
at91_set_A_periph(AT91_PIN_PA14, 0); /* CANRX */
at91sam9263_can_device.dev.platform_data = data;
platform_device_register(&at91sam9263_can_device);
}
#else
void __init at91_add_device_can(struct at91_can_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 = AT91SAM9263_LCDC_BASE,
.end = AT91SAM9263_LCDC_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_LCDC,
.end = NR_IRQS_LEGACY + AT91SAM9263_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_PC1, 0); /* LCDHSYNC */
at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD13 */
at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD21 */
at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
lcdc_data = *data;
platform_device_register(&at91_lcdc_device);
}
#else
void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
#endif
/* --------------------------------------------------------------------
* Image Sensor Interface
* -------------------------------------------------------------------- */
#if defined(CONFIG_VIDEO_AT91_ISI) || defined(CONFIG_VIDEO_AT91_ISI_MODULE)
struct resource isi_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_ISI,
.end = AT91SAM9263_BASE_ISI + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_ISI,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_ISI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_isi_device = {
.name = "at91_isi",
.id = -1,
.resource = isi_resources,
.num_resources = ARRAY_SIZE(isi_resources),
};
void __init at91_add_device_isi(struct isi_platform_data *data,
bool use_pck_as_mck)
{
at91_set_A_periph(AT91_PIN_PE0, 0); /* ISI_D0 */
at91_set_A_periph(AT91_PIN_PE1, 0); /* ISI_D1 */
at91_set_A_periph(AT91_PIN_PE2, 0); /* ISI_D2 */
at91_set_A_periph(AT91_PIN_PE3, 0); /* ISI_D3 */
at91_set_A_periph(AT91_PIN_PE4, 0); /* ISI_D4 */
at91_set_A_periph(AT91_PIN_PE5, 0); /* ISI_D5 */
at91_set_A_periph(AT91_PIN_PE6, 0); /* ISI_D6 */
at91_set_A_periph(AT91_PIN_PE7, 0); /* ISI_D7 */
at91_set_A_periph(AT91_PIN_PE8, 0); /* ISI_PCK */
at91_set_A_periph(AT91_PIN_PE9, 0); /* ISI_HSYNC */
at91_set_A_periph(AT91_PIN_PE10, 0); /* ISI_VSYNC */
at91_set_B_periph(AT91_PIN_PE12, 0); /* ISI_PD8 */
at91_set_B_periph(AT91_PIN_PE13, 0); /* ISI_PD9 */
at91_set_B_periph(AT91_PIN_PE14, 0); /* ISI_PD10 */
at91_set_B_periph(AT91_PIN_PE15, 0); /* ISI_PD11 */
if (use_pck_as_mck) {
at91_set_B_periph(AT91_PIN_PE11, 0); /* ISI_MCK (PCK3) */
/* TODO: register the PCK for ISI_MCK and set its parent */
}
}
#else
void __init at91_add_device_isi(struct isi_platform_data *data,
bool use_pck_as_mck) {}
#endif
/* --------------------------------------------------------------------
* Timer/Counter block
* -------------------------------------------------------------------- */
#ifdef CONFIG_ATMEL_TCLIB
static struct resource tcb_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_TCB0,
.end = AT91SAM9263_BASE_TCB0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_TCB,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_TCB,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_tcb_device = {
.name = "atmel_tcb",
.id = 0,
.resource = tcb_resources,
.num_resources = ARRAY_SIZE(tcb_resources),
};
#if defined(CONFIG_OF)
static struct of_device_id tcb_ids[] = {
{ .compatible = "atmel,at91rm9200-tcb" },
{ /*sentinel*/ }
};
#endif
static void __init at91_add_device_tc(void)
{
#if defined(CONFIG_OF)
struct device_node *np;
np = of_find_matching_node(NULL, tcb_ids);
if (np) {
of_node_put(np);
return;
}
#endif
platform_device_register(&at91sam9263_tcb_device);
}
#else
static void __init at91_add_device_tc(void) { }
#endif
/* --------------------------------------------------------------------
* RTT
* -------------------------------------------------------------------- */
static struct resource rtt0_resources[] = {
{
.start = AT91SAM9263_BASE_RTT0,
.end = AT91SAM9263_BASE_RTT0 + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device at91sam9263_rtt0_device = {
.name = "at91_rtt",
.id = 0,
.resource = rtt0_resources,
};
static struct resource rtt1_resources[] = {
{
.start = AT91SAM9263_BASE_RTT1,
.end = AT91SAM9263_BASE_RTT1 + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_MEM,
}, {
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device at91sam9263_rtt1_device = {
.name = "at91_rtt",
.id = 1,
.resource = rtt1_resources,
};
#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
static void __init at91_add_device_rtt_rtc(void)
{
struct platform_device *pdev;
struct resource *r;
switch (CONFIG_RTC_DRV_AT91SAM9_RTT) {
case 0:
/*
* The second resource is needed only for the chosen RTT:
* GPBR will serve as the storage for RTC time offset
*/
at91sam9263_rtt0_device.num_resources = 3;
at91sam9263_rtt1_device.num_resources = 1;
pdev = &at91sam9263_rtt0_device;
r = rtt0_resources;
break;
case 1:
at91sam9263_rtt0_device.num_resources = 1;
at91sam9263_rtt1_device.num_resources = 3;
pdev = &at91sam9263_rtt1_device;
r = rtt1_resources;
break;
default:
pr_err("at91sam9263: only supports 2 RTT (%d)\n",
CONFIG_RTC_DRV_AT91SAM9_RTT);
return;
}
pdev->name = "rtc-at91sam9";
r[1].start = AT91SAM9263_BASE_GPBR + 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
r[1].end = r[1].start + 3;
r[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
r[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 */
at91sam9263_rtt0_device.num_resources = 1;
at91sam9263_rtt1_device.num_resources = 1;
}
#endif
static void __init at91_add_device_rtt(void)
{
at91_add_device_rtt_rtc();
platform_device_register(&at91sam9263_rtt0_device);
platform_device_register(&at91sam9263_rtt1_device);
}
/* --------------------------------------------------------------------
* Watchdog
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9263_BASE_WDT,
.end = AT91SAM9263_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9263_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(&at91sam9263_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 = AT91SAM9263_BASE_PWMC,
.end = AT91SAM9263_BASE_PWMC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_PWMC,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_PWMC,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_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_PB7, 1); /* enable PWM0 */
if (mask & (1 << AT91_PWM1))
at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */
if (mask & (1 << AT91_PWM2))
at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */
if (mask & (1 << AT91_PWM3))
at91_set_B_periph(AT91_PIN_PB29, 1); /* enable PWM3 */
pwm_mask = mask;
platform_device_register(&at91sam9263_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 = AT91SAM9263_BASE_SSC0,
.end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC0,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC0,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_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_B_periph(AT91_PIN_PB0, 1);
if (pins & ATMEL_SSC_TK)
at91_set_B_periph(AT91_PIN_PB1, 1);
if (pins & ATMEL_SSC_TD)
at91_set_B_periph(AT91_PIN_PB2, 1);
if (pins & ATMEL_SSC_RD)
at91_set_B_periph(AT91_PIN_PB3, 1);
if (pins & ATMEL_SSC_RK)
at91_set_B_periph(AT91_PIN_PB4, 1);
if (pins & ATMEL_SSC_RF)
at91_set_B_periph(AT91_PIN_PB5, 1);
}
static u64 ssc1_dmamask = DMA_BIT_MASK(32);
static struct resource ssc1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_SSC1,
.end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC1,
.end = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC1,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9263_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_PB6, 1);
if (pins & ATMEL_SSC_TK)
at91_set_A_periph(AT91_PIN_PB7, 1);
if (pins & ATMEL_SSC_TD)
at91_set_A_periph(AT91_PIN_PB8, 1);
if (pins & ATMEL_SSC_RD)
at91_set_A_periph(AT91_PIN_PB9, 1);
if (pins & ATMEL_SSC_RK)
at91_set_A_periph(AT91_PIN_PB10, 1);
if (pins & ATMEL_SSC_RF)
at91_set_A_periph(AT91_PIN_PB11, 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 AT91SAM9263_ID_SSC0:
pdev = &at91sam9263_ssc0_device;
configure_ssc0_pins(pins);
break;
case AT91SAM9263_ID_SSC1:
pdev = &at91sam9263_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 = AT91SAM9263_BASE_DBGU,
.end = AT91SAM9263_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 at91sam9263_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_PC30, 0); /* DRXD */
at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
}
static struct resource uart0_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US0,
.end = AT91SAM9263_BASE_US0 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_US0,
.end = NR_IRQS_LEGACY + AT91SAM9263_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 at91sam9263_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_PA26, 1); /* TXD0 */
at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
if (pins & ATMEL_UART_RTS)
at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */
if (pins & ATMEL_UART_CTS)
at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */
}
static struct resource uart1_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US1,
.end = AT91SAM9263_BASE_US1 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_US1,
.end = NR_IRQS_LEGACY + AT91SAM9263_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 at91sam9263_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_PD0, 1); /* TXD1 */
at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
if (pins & ATMEL_UART_RTS)
at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
if (pins & ATMEL_UART_CTS)
at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
}
static struct resource uart2_resources[] = {
[0] = {
.start = AT91SAM9263_BASE_US2,
.end = AT91SAM9263_BASE_US2 + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = NR_IRQS_LEGACY + AT91SAM9263_ID_US2,
.end = NR_IRQS_LEGACY + AT91SAM9263_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 at91sam9263_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_PD2, 1); /* TXD2 */
at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
if (pins & ATMEL_UART_RTS)
at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
if (pins & ATMEL_UART_CTS)
at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
}
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 = &at91sam9263_dbgu_device;
configure_dbgu_pins();
break;
case AT91SAM9263_ID_US0:
pdev = &at91sam9263_uart0_device;
configure_usart0_pins(pins);
break;
case AT91SAM9263_ID_US1:
pdev = &at91sam9263_uart1_device;
configure_usart1_pins(pins);
break;
case AT91SAM9263_ID_US2:
pdev = &at91sam9263_uart2_device;
configure_usart2_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)
{
if (of_have_populated_dt())
return 0;
at91_add_device_rtt();
at91_add_device_watchdog();
at91_add_device_tc();
return 0;
}
arch_initcall(at91_add_standard_devices);
View Git Blame Copy Permalink