diff options
Diffstat (limited to 'arch/arm/mach-pxa/zeus.c')
| -rw-r--r-- | arch/arm/mach-pxa/zeus.c | 91 |
1 files changed, 77 insertions, 14 deletions
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c index 75f2a37f945d..39896d883584 100644 --- a/arch/arm/mach-pxa/zeus.c +++ b/arch/arm/mach-pxa/zeus.c @@ -26,6 +26,7 @@ #include <linux/i2c.h> #include <linux/i2c/pca953x.h> #include <linux/apm-emulation.h> +#include <linux/can/platform/mcp251x.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -387,11 +388,47 @@ static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = { .enable_dma = 1, }; -static struct platform_device pxa2xx_spi_ssp3_device = { - .name = "pxa2xx-spi", - .id = 3, - .dev = { - .platform_data = &pxa2xx_spi_ssp3_master_info, +/* CAN bus on SPI */ +static int zeus_mcp2515_setup(struct spi_device *sdev) +{ + int err; + + err = gpio_request(ZEUS_CAN_SHDN_GPIO, "CAN shutdown"); + if (err) + return err; + + err = gpio_direction_output(ZEUS_CAN_SHDN_GPIO, 1); + if (err) { + gpio_free(ZEUS_CAN_SHDN_GPIO); + return err; + } + + return 0; +} + +static int zeus_mcp2515_transceiver_enable(int enable) +{ + gpio_set_value(ZEUS_CAN_SHDN_GPIO, !enable); + return 0; +} + +static struct mcp251x_platform_data zeus_mcp2515_pdata = { + .oscillator_frequency = 16*1000*1000, + .model = CAN_MCP251X_MCP2515, + .board_specific_setup = zeus_mcp2515_setup, + .transceiver_enable = zeus_mcp2515_transceiver_enable, + .power_enable = zeus_mcp2515_transceiver_enable, +}; + +static struct spi_board_info zeus_spi_board_info[] = { + [0] = { + .modalias = "mcp251x", + .platform_data = &zeus_mcp2515_pdata, + .irq = gpio_to_irq(ZEUS_CAN_GPIO), + .max_speed_hz = 1*1000*1000, + .bus_num = 3, + .mode = SPI_MODE_0, + .chip_select = 0, }, }; @@ -457,15 +494,28 @@ static struct platform_device zeus_pcmcia_device = { }, }; +static struct resource zeus_max6369_resource = { + .start = ZEUS_CPLD_EXTWDOG_PHYS, + .end = ZEUS_CPLD_EXTWDOG_PHYS, + .flags = IORESOURCE_MEM, +}; + +struct platform_device zeus_max6369_device = { + .name = "max6369_wdt", + .id = -1, + .resource = &zeus_max6369_resource, + .num_resources = 1, +}; + static struct platform_device *zeus_devices[] __initdata = { &zeus_serial_device, &zeus_mtd_devices[0], &zeus_dm9k0_device, &zeus_dm9k1_device, &zeus_sram_device, - &pxa2xx_spi_ssp3_device, &zeus_leds_device, &zeus_pcmcia_device, + &zeus_max6369_device, }; /* AC'97 */ @@ -509,7 +559,9 @@ static void zeus_ohci_exit(struct device *dev) static struct pxaohci_platform_data zeus_ohci_platform_data = { .port_mode = PMM_NPS_MODE, - .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, + /* Clear Power Control Polarity Low and set Power Sense + * Polarity Low. Supply power to USB ports. */ + .flags = ENABLE_PORT_ALL | POWER_SENSE_LOW, .init = zeus_ohci_init, .exit = zeus_ohci_exit, }; @@ -621,11 +673,15 @@ static struct pxa2xx_udc_mach_info zeus_udc_info = { .udc_command = zeus_udc_command, }; +#ifdef CONFIG_PM static void zeus_power_off(void) { local_irq_disable(); pxa27x_cpu_suspend(PWRMODE_DEEPSLEEP); } +#else +#define zeus_power_off NULL +#endif #ifdef CONFIG_APM_EMULATION static void zeus_get_power_status(struct apm_power_info *info) @@ -706,6 +762,12 @@ static struct i2c_board_info __initdata zeus_i2c_devices[] = { }; static mfp_cfg_t zeus_pin_config[] __initdata = { + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + GPIO15_nCS_1, GPIO78_nCS_2, GPIO80_nCS_4, @@ -731,6 +793,11 @@ static mfp_cfg_t zeus_pin_config[] __initdata = { GPIO104_CIF_DD_2, GPIO105_CIF_DD_1, + GPIO81_SSP3_TXD, + GPIO82_SSP3_RXD, + GPIO83_SSP3_SFRM, + GPIO84_SSP3_SCLK, + GPIO48_nPOE, GPIO49_nPWE, GPIO50_nPIOR, @@ -785,6 +852,8 @@ static void __init zeus_init(void) pxa_set_ac97_info(&zeus_ac97_info); pxa_set_i2c_info(NULL); i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices)); + pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info); + spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info)); } static struct map_desc zeus_io_desc[] __initdata = { @@ -807,12 +876,6 @@ static struct map_desc zeus_io_desc[] __initdata = { .type = MT_DEVICE, }, { - .virtual = ZEUS_CPLD_EXTWDOG, - .pfn = __phys_to_pfn(ZEUS_CPLD_EXTWDOG_PHYS), - .length = 0x1000, - .type = MT_DEVICE, - }, - { .virtual = ZEUS_PC104IO, .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS), .length = 0x00800000, @@ -837,7 +900,7 @@ static void __init zeus_map_io(void) PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP; } -MACHINE_START(ARCOM_ZEUS, "Arcom ZEUS") +MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS") /* Maintainer: Marc Zyngier <maz@misterjones.org> */ .phys_io = 0x40000000, .io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc), |