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[ARM] pxa/em-x270: add libertas device registration

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Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
This commit is contained in:
Mike Rapoport 2009-02-03 09:15:30 +02:00 committed by Eric Miao
parent eb650b9ed0
commit c9be0e3961
1 changed files with 78 additions and 8 deletions
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86
arch/arm/mach-pxa/em-x270.c
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@ -25,8 +25,10 @@
#include <linux/regulator/machine.h>
#include <linux/spi/spi.h>
#include <linux/spi/tdo24m.h>
#include <linux/spi/libertas_spi.h>
#include <linux/power_supply.h>
#include <linux/apm-emulation.h>
#include <linux/delay.h>
#include <media/soc_camera.h>
@ -62,6 +64,8 @@
#define GPIO93_CAM_RESET (93)
#define GPIO41_ETHIRQ (41)
#define EM_X270_ETHIRQ IRQ_GPIO(GPIO41_ETHIRQ)
#define GPIO115_WLAN_PWEN (115)
#define GPIO19_WLAN_STRAP (19)
static int mmc_cd;
static int nand_rb;
@ -159,8 +163,8 @@ static unsigned long common_pin_config[] = {
GPIO57_SSP1_TXD,
/* SSP2 */
GPIO19_SSP2_SCLK,
GPIO14_SSP2_SFRM,
GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
GPIO14_GPIO,
GPIO89_SSP2_TXD,
GPIO88_SSP2_RXD,
@ -648,20 +652,86 @@ static struct tdo24m_platform_data em_x270_tdo24m_pdata = {
.model = TDO35S,
};
static struct pxa2xx_spi_master em_x270_spi_2_info = {
.num_chipselect = 1,
.enable_dma = 1,
};
static struct pxa2xx_spi_chip em_x270_libertas_chip = {
.rx_threshold = 1,
.tx_threshold = 1,
.timeout = 1000,
};
static unsigned long em_x270_libertas_pin_config[] = {
/* SSP2 */
GPIO19_SSP2_SCLK,
GPIO14_GPIO,
GPIO89_SSP2_TXD,
GPIO88_SSP2_RXD,
};
static int em_x270_libertas_setup(struct spi_device *spi)
{
int err = gpio_request(GPIO115_WLAN_PWEN, "WLAN PWEN");
if (err)
return err;
gpio_direction_output(GPIO19_WLAN_STRAP, 1);
mdelay(100);
pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_libertas_pin_config));
gpio_direction_output(GPIO115_WLAN_PWEN, 0);
mdelay(100);
gpio_set_value(GPIO115_WLAN_PWEN, 1);
mdelay(100);
spi->bits_per_word = 16;
spi_setup(spi);
return 0;
}
static int em_x270_libertas_teardown(struct spi_device *spi)
{
gpio_set_value(GPIO115_WLAN_PWEN, 0);
gpio_free(GPIO115_WLAN_PWEN);
return 0;
}
struct libertas_spi_platform_data em_x270_libertas_pdata = {
.use_dummy_writes = 1,
.gpio_cs = 14,
.setup = em_x270_libertas_setup,
.teardown = em_x270_libertas_teardown,
};
static struct spi_board_info em_x270_spi_devices[] __initdata = {
{
.modalias = "tdo24m",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
.controller_data = &em_x270_tdo24m_chip,
.platform_data = &em_x270_tdo24m_pdata,
.modalias = "tdo24m",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
.controller_data = &em_x270_tdo24m_chip,
.platform_data = &em_x270_tdo24m_pdata,
},
{
.modalias = "libertas_spi",
.max_speed_hz = 13000000,
.bus_num = 2,
.irq = IRQ_GPIO(116),
.chip_select = 0,
.controller_data = &em_x270_libertas_chip,
.platform_data = &em_x270_libertas_pdata,
},
};
static void __init em_x270_init_spi(void)
{
pxa2xx_set_spi_info(1, &em_x270_spi_info);
pxa2xx_set_spi_info(2, &em_x270_spi_2_info);
spi_register_board_info(ARRAY_AND_SIZE(em_x270_spi_devices));
}
#else