struct platform_device *__init
at32_add_device_cf(unsigned int id, unsigned int extint,
struct cf_platform_data *data)
{
struct platform_device *pdev;
pdev = platform_device_alloc("at32_cf", id);
if (!pdev)
goto fail;
if (platform_device_add_data(pdev, data,
sizeof(struct cf_platform_data)))
goto fail;
if (at32_init_ide_or_cf(pdev, data->cs, extint))
goto fail;
if (data->detect_pin != GPIO_PIN_NONE)
at32_select_gpio(data->detect_pin, AT32_GPIOF_DEGLITCH);
if (data->reset_pin != GPIO_PIN_NONE)
at32_select_gpio(data->reset_pin, 0);
if (data->vcc_pin != GPIO_PIN_NONE)
at32_select_gpio(data->vcc_pin, 0);
/* READY is used as extint, so we can't select it as gpio */
platform_device_add(pdev);
return pdev;
fail:
platform_device_put(pdev);
return NULL;
}
static int __init merisc_init(void)
{
detect_merisc_board_id();
printk(KERN_NOTICE "BOARD: Merisc %s revision %s\n", merisc_model(),
merisc_revision());
/* Reserve pins for SDRAM */
at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL | (1 << 26));
if (merisc_board_id >= 1)
at32_map_usart(2, 2, 0);
at32_add_device_usart(0);
at32_add_device_usart(1);
if (merisc_board_id >= 1)
at32_add_device_usart(2);
at32_add_device_usart(3);
set_hw_addr(at32_add_device_eth(0, ð_data[0]));
/* ADS7846 PENIRQ */
if (merisc_board_id == 0) {
ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB26;
at32_select_periph(GPIO_PIOB_BASE, 1 << 26,
GPIO_PERIPH_A, AT32_GPIOF_PULLUP);
spi0_board_info[0].irq = AT32_EXTINT(1);
} else {
ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB28;
at32_select_periph(GPIO_PIOB_BASE, 1 << 28, GPIO_PERIPH_A,
AT32_GPIOF_PULLUP);
spi0_board_info[0].irq = AT32_EXTINT(3);
}
/* ADS7846 busy pin */
at32_select_gpio(GPIO_PIN_PA(4), AT32_GPIOF_PULLUP);
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
at32_add_device_mci(0, &mci0_data);
#ifdef CONFIG_LEDS_ATMEL_PWM
at32_add_device_pwm((1 << 0) | (1 << 2));
platform_device_register(&stk_pwm_led_dev);
#else
at32_add_device_pwm((1 << 2));
#endif
at32_select_gpio(i2c_gpio_data.sda_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
at32_select_gpio(i2c_gpio_data.scl_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
platform_device_register(&i2c_gpio_device);
i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
return 0;
}
static int __init hammerhead_init(void)
{
/*
* Hammerhead uses 32-bit SDRAM interface. Reserve the
* SDRAM-specific pins so that nobody messes with them.
*/
at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL);
at32_add_device_usart(0);
/* Reserve PB29 (GCLK3). This pin is used as clock source
* for ETH PHY (25MHz). GCLK3 setup is done by U-Boot.
*/
at32_reserve_pin(GPIO_PIOB_BASE, (1<<29));
/*
* Hammerhead uses only one ethernet port, so we don't set
* address of second port
*/
set_hw_addr(at32_add_device_eth(0, ð_data[0]));
#ifdef CONFIG_BOARD_HAMMERHEAD_FPGA
at32_add_device_hh_fpga();
#endif
at32_add_device_mci(0, &mci0_data);
#ifdef CONFIG_BOARD_HAMMERHEAD_USB
at32_add_device_usba(0, NULL);
#endif
#ifdef CONFIG_BOARD_HAMMERHEAD_LCD
at32_add_device_lcdc(0, &hammerhead_lcdc_data, fbmem_start,
fbmem_size, ATMEL_LCDC_PRI_24BIT);
#endif
at32_select_gpio(i2c_gpio_data.sda_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT |
AT32_GPIOF_HIGH);
at32_select_gpio(i2c_gpio_data.scl_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT |
AT32_GPIOF_HIGH);
platform_device_register(&i2c_gpio_device);
i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
#ifdef CONFIG_BOARD_HAMMERHEAD_SND
at32_add_device_ac97c(0, &ac97c_data, AC97C_BOTH);
#endif
/* Select the Touchscreen interrupt pin mode */
at32_select_periph(GPIO_PIOB_BASE, 0x08000000, GPIO_PERIPH_A, 0);
return 0;
}
static void detect_merisc_board_id(void)
{
/* Board ID pins MUST be set as input or the board may be damaged */
at32_select_gpio(GPIO_PIN_PA(24), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(25), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(26), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(27), AT32_GPIOF_PULLUP);
merisc_board_id = !gpio_get_value(GPIO_PIN_PA(24)) +
!gpio_get_value(GPIO_PIN_PA(25)) * 2 +
!gpio_get_value(GPIO_PIN_PA(26)) * 4 +
!gpio_get_value(GPIO_PIN_PA(27)) * 8;
}
void __init
at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n)
{
/*
* Manage the chipselects as GPIOs, normally using the same pins
* the SPI controller expects; but boards can use other pins.
*/
static u8 __initdata spi_pins[][4] = {
{ GPIO_PIN_PA(3), GPIO_PIN_PA(4),
GPIO_PIN_PA(5), GPIO_PIN_PA(20) },
{ GPIO_PIN_PB(2), GPIO_PIN_PB(3),
GPIO_PIN_PB(4), GPIO_PIN_PA(27) },
};
unsigned int pin, mode;
/* There are only 2 SPI controllers */
if (bus_num > 1)
return;
for (; n; n--, b++) {
b->bus_num = bus_num;
if (b->chip_select >= 4)
continue;
pin = (unsigned)b->controller_data;
if (!pin) {
pin = spi_pins[bus_num][b->chip_select];
b->controller_data = (void *)pin;
}
mode = AT32_GPIOF_OUTPUT;
if (!(b->mode & SPI_CS_HIGH))
mode |= AT32_GPIOF_HIGH;
at32_select_gpio(pin, mode);
}
}
static int __init atevklcd10x_init(void)
{
/*
*/
at32_select_gpio(GPIO_PIN_PB(15), AT32_GPIOF_OUTPUT);
gpio_request(GPIO_PIN_PB(15), "backlight");
gpio_direction_output(GPIO_PIN_PB(15), 0);
atevklcd10x_lcdc_data.atmel_lcdfb_power_control =
atevklcd10x_lcdc_power_control;
at32_add_device_lcdc(0, &atevklcd10x_lcdc_data,
fbmem_start, fbmem_size,
#ifdef CONFIG_BOARD_ATNGW100_MKII
ATMEL_LCDC_PRI_18BIT | ATMEL_LCDC_PC_DVAL
#else
ATMEL_LCDC_ALT_18BIT | ATMEL_LCDC_PE_DVAL
#endif
);
at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
return 0;
}
struct platform_device *__init
at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
{
struct platform_device *pdev;
if (id != 0)
return NULL;
pdev = platform_device_alloc("atmel_usba_udc", 0);
if (!pdev)
return NULL;
if (platform_device_add_resources(pdev, usba0_resource,
ARRAY_SIZE(usba0_resource)))
goto out_free_pdev;
if (data) {
if (platform_device_add_data(pdev, data, sizeof(*data)))
goto out_free_pdev;
if (data->vbus_pin != GPIO_PIN_NONE)
at32_select_gpio(data->vbus_pin, 0);
}
usba0_pclk.dev = &pdev->dev;
usba0_hclk.dev = &pdev->dev;
platform_device_add(pdev);
return pdev;
out_free_pdev:
platform_device_put(pdev);
return NULL;
}
static int __init mrmt1_early_init(void)
{
/* To maintain power-on signal in case boot loader did not already */
at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT );
gpio_request( PIN_PWR_ON, "PIN_PWR_ON" );
gpio_direction_output( PIN_PWR_ON, 1 );
return 0;
}
void __init atstk1000_setup_j2_leds(void)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(stk1000_j2_led); i++)
at32_select_gpio(stk1000_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
printk("STK1000: " LEDSTRING "\n");
platform_device_register(&stk1000_j2_led_dev);
}
struct platform_device *__init at32_add_device_hh_fpga(void)
{
/* Select peripheral functionallity for SPI SCK and MOSI */
at32_select_periph(GPIO_PIOB_BASE, HAMMERHEAD_FPGA_PERIPH_SCK,
GPIO_PERIPH_B, 0);
at32_select_periph(GPIO_PIOB_BASE, HAMMERHEAD_FPGA_PERIPH_MOSI,
GPIO_PERIPH_B, 0);
/* reserve all other needed gpio
* We have on board pull ups, so there is no need
* to enable gpio pull ups */
/* INIT_DONE (input) */
at32_select_gpio(GPIO_PIN_PB(0), 0);
/* nSTATUS (input) */
at32_select_gpio(GPIO_PIN_PB(2), 0);
/* nCONFIG (output, low) */
at32_select_gpio(GPIO_PIN_PB(3), AT32_GPIOF_OUTPUT);
/* CONF_DONE (input) */
at32_select_gpio(GPIO_PIN_PB(4), 0);
/* Select EXTINT3 for PB28 (Interrupt from FPGA) */
at32_select_periph(GPIO_PIOB_BASE, HAMMERHEAD_FPGA_PERIPH_EXTINT3,
GPIO_PERIPH_A, 0);
/* Get our parent clock */
hh_fpga0_spi_clk.parent = clk_get(NULL, "pba");
clk_put(hh_fpga0_spi_clk.parent);
/* Register clock in at32 clock tree */
at32_clk_register(&hh_fpga0_spi_clk);
platform_device_register(&hh_fpga0_device);
return &hh_fpga0_device;
}
static int __init atevklcd10x_init(void)
{
/* PB15 is connected to the enable line on the boost regulator
* controlling the backlight for the LCD panel.
*/
at32_select_gpio(GPIO_PIN_PB(15), AT32_GPIOF_OUTPUT);
gpio_request(GPIO_PIN_PB(15), "backlight");
gpio_direction_output(GPIO_PIN_PB(15), 0);
atevklcd10x_lcdc_data.atmel_lcdfb_power_control =
atevklcd10x_lcdc_power_control;
at32_add_device_lcdc(0, &atevklcd10x_lcdc_data,
fbmem_start, fbmem_size,
ATMEL_LCDC_ALT_18BIT | ATMEL_LCDC_PE_DVAL);
at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
return 0;
}
static void __init
at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,
unsigned int n, const u8 *pins)
{
unsigned int pin, mode;
for (; n; n--, b++) {
b->bus_num = bus_num;
if (b->chip_select >= 4)
continue;
pin = (unsigned)b->controller_data;
if (!pin) {
pin = pins[b->chip_select];
b->controller_data = (void *)pin;
}
mode = AT32_GPIOF_OUTPUT;
if (!(b->mode & SPI_CS_HIGH))
mode |= AT32_GPIOF_HIGH;
at32_select_gpio(pin, mode);
}
}
struct platform_device *__init
at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
{
struct platform_device *pdev;
struct mci_dma_data *slave;
u32 pioa_mask;
u32 piob_mask;
if (id != 0 || !data)
return NULL;
/* Must have at least one usable slot */
if (!data->slot[0].bus_width && !data->slot[1].bus_width)
return NULL;
pdev = platform_device_alloc("atmel_mci", id);
if (!pdev)
goto fail;
if (platform_device_add_resources(pdev, atmel_mci0_resource,
ARRAY_SIZE(atmel_mci0_resource)))
goto fail;
slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL);
if (!slave)
goto fail;
slave->sdata.dma_dev = &dw_dmac0_device.dev;
slave->sdata.cfg_hi = (DWC_CFGH_SRC_PER(0)
| DWC_CFGH_DST_PER(1));
slave->sdata.cfg_lo &= ~(DWC_CFGL_HS_DST_POL
| DWC_CFGL_HS_SRC_POL);
data->dma_slave = slave;
if (platform_device_add_data(pdev, data,
sizeof(struct mci_platform_data)))
goto fail_free;
/* CLK line is common to both slots */
pioa_mask = 1 << 10;
switch (data->slot[0].bus_width) {
case 4:
pioa_mask |= 1 << 13; /* DATA1 */
pioa_mask |= 1 << 14; /* DATA2 */
pioa_mask |= 1 << 15; /* DATA3 */
/* fall through */
case 1:
pioa_mask |= 1 << 11; /* CMD */
pioa_mask |= 1 << 12; /* DATA0 */
if (gpio_is_valid(data->slot[0].detect_pin))
at32_select_gpio(data->slot[0].detect_pin, 0);
if (gpio_is_valid(data->slot[0].wp_pin))
at32_select_gpio(data->slot[0].wp_pin, 0);
break;
case 0:
/* Slot is unused */
break;
default:
goto fail_free;
}
select_peripheral(PIOA, pioa_mask, PERIPH_A, 0);
piob_mask = 0;
switch (data->slot[1].bus_width) {
case 4:
piob_mask |= 1 << 8; /* DATA1 */
piob_mask |= 1 << 9; /* DATA2 */
piob_mask |= 1 << 10; /* DATA3 */
/* fall through */
case 1:
piob_mask |= 1 << 6; /* CMD */
piob_mask |= 1 << 7; /* DATA0 */
select_peripheral(PIOB, piob_mask, PERIPH_B, 0);
if (gpio_is_valid(data->slot[1].detect_pin))
at32_select_gpio(data->slot[1].detect_pin, 0);
if (gpio_is_valid(data->slot[1].wp_pin))
at32_select_gpio(data->slot[1].wp_pin, 0);
break;
case 0:
/* Slot is unused */
break;
default:
if (!data->slot[0].bus_width)
static int __init mrmt1_init(void)
{
gpio_set_value( PIN_PWR_ON, 1 ); /* Ensure PWR_ON is enabled */
pm_power_off = mrmt_power_off;
/* Setup USARTS (other than console) */
at32_map_usart(2, 1, 0); /* USART 2: /dev/ttyS1, RMT1:DB9M */
at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS);
/* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */
at32_add_device_usart(1);
at32_add_device_usart(2);
/* Select GPIO Key pins */
at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH);
at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH);
at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH);
platform_device_register(&rmt_gpio_keys);
#ifdef CONFIG_BOARD_MRMT_RTC_I2C
i2c_register_board_info(0, &mrmt1_i2c_rtc, 1);
#endif
#ifndef CONFIG_BOARD_MRMT_LCD_DISABLE
/* User "alternate" LCDC inferface on Port E & D */
/* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */
at32_add_device_lcdc(0, &rmt_lcdc_data,
fbmem_start, fbmem_size,
(ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) );
#endif
#ifdef CONFIG_BOARD_MRMT_AC97
at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
#endif
#ifdef CONFIG_BOARD_MRMT_ADS7846_TS
/* Select the Touchscreen interrupt pin mode */
at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING);
at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info));
spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
#endif
#ifdef CONFIG_BOARD_MRMT_UCB1400_TS
/* Select the Touchscreen interrupt pin mode */
at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
platform_device_register(&rmt_ts_device);
#endif
at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_DISP, "LCD_DISP" );
gpio_direction_output( PIN_LCD_DISP, 0 ); /* LCD DISP */
#ifdef CONFIG_BOARD_MRMT_LCD_DISABLE
/* Keep Backlight and DISP off */
at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_BL, "LCD_BL" );
gpio_direction_output( PIN_LCD_BL, 0 ); /* Backlight */
#else
gpio_set_value( PIN_LCD_DISP, 1 ); /* DISP asserted first */
#ifdef CONFIG_BOARD_MRMT_BL_PWM
/* Use PWM for Backlight controls */
at32_add_device_pwm(1 << PWM_CH_BL);
platform_device_register(&rmt_pwm_led_dev);
#else
/* Backlight always on */
udelay( 1 );
at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_BL, "LCD_BL" );
gpio_direction_output( PIN_LCD_BL, 1 );
#endif
#endif
/* Make sure BT and Zigbee modules in reset */
at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT );
gpio_request( PIN_BT_RST, "BT_RST" );
gpio_direction_output( PIN_BT_RST, 1 );
/* BT Module in Reset */
at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT );
gpio_request( PIN_ZB_RST_N, "ZB_RST_N" );
gpio_direction_output( PIN_ZB_RST_N, 0 );
/* XBee Module in Reset */
#ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB
udelay( 1000 );
/* Unreset the XBee Module */
gpio_set_value( PIN_ZB_RST_N, 1 );
#endif
#ifdef CONFIG_BOARD_MRMT_WIRELESS_BT
udelay( 1000 );
/* Unreset the BT Module */
gpio_set_value( PIN_BT_RST, 0 );
#endif
return 0;
}
static int __init hammerhead_usbh_init(void)
{
struct clk *gclk;
struct clk *osc;
int ret;
/* setup smc for usbh */
smc_set_timing(&isp1160_config, &isp1160_timing);
ret = smc_set_configuration(2, &isp1160_config);
if (ret < 0) {
printk(KERN_ERR
"hammerhead: failed to set ISP1160 USBH timing\n");
return ret;
}
/* setup gclk0 to run from osc1 */
gclk = clk_get(NULL, "gclk0");
if (IS_ERR(gclk)) {
ret = PTR_ERR(gclk);
goto err_gclk;
}
osc = clk_get(NULL, "osc1");
if (IS_ERR(osc)) {
ret = PTR_ERR(osc);
goto err_osc;
}
ret = clk_set_parent(gclk, osc);
if (ret < 0) {
pr_debug("hammerhead: failed to set osc1 for USBH clock\n");
goto err_set_clk;
}
/* set clock to 6MHz */
clk_set_rate(gclk, 6000000);
/* and enable */
clk_enable(gclk);
/* select GCLK0 peripheral function */
at32_select_periph(GPIO_PIOA_BASE, HAMMERHEAD_USB_PERIPH_GCLK0,
GPIO_PERIPH_A, 0);
/* enable CS2 peripheral function */
at32_select_periph(GPIO_PIOE_BASE, HAMMERHEAD_USB_PERIPH_CS2,
GPIO_PERIPH_A, 0);
/* H_WAKEUP must be driven low */
at32_select_gpio(GPIO_PIN_PA(8), AT32_GPIOF_OUTPUT);
/* Select EXTINT0 for PB25 */
at32_select_periph(GPIO_PIOB_BASE, HAMMERHEAD_USB_PERIPH_EXTINT0,
GPIO_PERIPH_A, 0);
/* register usbh device driver */
platform_device_register(&isp1160_device);
err_set_clk:
clk_put(osc);
err_osc:
clk_put(gclk);
err_gclk:
return ret;
}