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-rw-r--r--arch/arm/mach-pxa/zeus.c91
1 files changed, 77 insertions, 14 deletions
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 75f2a37f945..39896d88358 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),