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Diffstat (limited to 'arch/arm/mach-tegra/board-colibri_t20.c')
-rw-r--r--arch/arm/mach-tegra/board-colibri_t20.c186
1 files changed, 184 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/board-colibri_t20.c b/arch/arm/mach-tegra/board-colibri_t20.c
index dcbacc68c3e7..2cb679a3e23f 100644
--- a/arch/arm/mach-tegra/board-colibri_t20.c
+++ b/arch/arm/mach-tegra/board-colibri_t20.c
@@ -10,6 +10,8 @@
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
+#include <linux/can/platform/mcp251x.h>
+#include <linux/can/platform/sja1000.h>
#include <linux/clk.h>
#include <linux/colibri_usb.h>
#include <linux/debugfs.h>
@@ -27,6 +29,9 @@
#include <linux/reboot.h>
#include <linux/serial_8250.h>
#include <linux/spi/spi.h>
+#if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
+#include <linux/spi/spi_gpio.h>
+#endif
#include <linux/tegra_uart.h>
#include <linux/wm97xx.h>
@@ -48,6 +53,18 @@
#include "pm.h"
#include "wakeups-t2.h"
+//from former drivers/mtd/maps/tegra_nor.h
+#define TEGRA_GMI_PHYS 0x70009000
+#define TEGRA_GMI_BASE IO_TO_VIRT(TEGRA_GMI_PHYS)
+#define TEGRA_SNOR_CONFIG_REG (TEGRA_GMI_BASE + 0x00)
+
+//from drivers/mtd/maps/tegra_nor.c
+#define __BITMASK0(len) (BIT(len) - 1)
+#define REG_FIELD(val, start, len) (((val) & __BITMASK0(len)) << (start))
+
+#define TEGRA_SNOR_CONFIG_GO BIT(31)
+#define TEGRA_SNOR_CONFIG_SNOR_CS(val) REG_FIELD((val), 4, 3)
+
/* ADC */
static struct wm97xx_batt_pdata colibri_t20_adc_pdata = {
@@ -126,6 +143,113 @@ static struct platform_device soc_camera = {
};
#endif /* CONFIG_VIDEO_TEGRA */
+/* CAN */
+#if ((defined(CONFIG_CAN_MCP251X) || defined(CONFIG_CAN_MCP251X_MODULE)) && \
+ (defined(CONFIG_CAN_SJA1000) || defined(CONFIG_CAN_SJA1000_MODULE)))
+ #error either enable MCP251X or SJA1000 but not both
+#endif
+
+#if defined(CONFIG_CAN_MCP251X) || defined(CONFIG_CAN_MCP251X_MODULE)
+/* Colibri EvalBoard V3.1a/MECS Tellurium xPOD CAN module featuring MCP2515 SPI CAN controller */
+
+#ifdef MECS_TELLURIUM_XPOD2
+#define CAN_CS_GPIO TEGRA_GPIO_PB7 /* SSPFRM2 */
+#define CAN_INTERRUPT_GPIO TEGRA_GPIO_PK3 /* active low interrupt (MCP2515 nINT) */
+#define CAN_RESET_GPIO TEGRA_GPIO_PK2 /* active high reset (not MCP2515 nRESET) */
+#else
+#define CAN_INTERRUPT_GPIO TEGRA_GPIO_PA0 /* active low interrupt (MCP2515 nINT) */
+#define CAN_RESET_GPIO TEGRA_GPIO_PK4 /* active high reset (not MCP2515 nRESET) */
+#endif
+
+static int __init colibri_t20_mcp2515_setup(struct spi_device *spi)
+{
+ int gpio_status;
+
+ printk("Colibri EvalBoard V3.1a/MECS Tellurium xPOD CAN Initialisation\n");
+
+ /* configure MCP2515 reset line as output and pull high into reset */
+ gpio_status = gpio_request(CAN_RESET_GPIO, "CAN_RESET_GPIO");
+ if (gpio_status < 0)
+ pr_warning("CAN_RESET_GPIO request GPIO FAILED\n");
+ gpio_status = gpio_direction_output(CAN_RESET_GPIO, 1);
+ if (gpio_status < 0)
+ pr_warning("CAN_RESET_GPIO request GPIO DIRECTION FAILED\n");
+
+ udelay(2);
+
+ /* pull out of reset */
+ gpio_set_value(CAN_RESET_GPIO, 0);
+
+ return 0;
+}
+
+static struct mcp251x_platform_data mcp251x_pdata = {
+ .board_specific_setup = colibri_t20_mcp2515_setup,
+ .oscillator_frequency = 16000000,
+ .power_enable = NULL,
+ .transceiver_enable = NULL
+};
+
+static struct spi_board_info mcp251x_board_info[] = {
+ {
+#ifndef MECS_TELLURIUM_XPOD2
+ .bus_num = 3,
+#else
+ .bus_num = 4,
+#endif
+ .chip_select = 0,
+#ifdef MECS_TELLURIUM_XPOD2
+ .controller_data = (void *) CAN_CS_GPIO,
+#else
+// .controller_data = ,
+#endif
+ .max_speed_hz = 10000000,
+ .modalias = "mcp2515",
+ .platform_data = &mcp251x_pdata,
+ },
+};
+
+static void __init colibri_t20_mcp2515_can_init(void)
+{
+ mcp251x_board_info[0].irq = gpio_to_irq(CAN_INTERRUPT_GPIO);
+ spi_register_board_info(mcp251x_board_info, ARRAY_SIZE(mcp251x_board_info));
+}
+#else /* CONFIG_CAN_MCP251X | CONFIG_CAN_MCP251X_MODULE */
+#define colibri_t20_mcp2515_can_init() do {} while (0)
+#endif /* CONFIG_CAN_MCP251X | CONFIG_CAN_MCP251X_MODULE */
+
+#if defined(CONFIG_CAN_SJA1000) || defined(CONFIG_CAN_SJA1000_MODULE)
+#define CAN_BASE_TEG 0xd0000000 /* GMI_CS4_N */
+static struct resource colibri_can_resource[] = {
+ [0] = {
+ .start = CAN_BASE_TEG, /* address */
+ .end = CAN_BASE_TEG + 0xff, /* data */
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ /* interrupt assigned during initialisation */
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
+ }
+};
+
+static struct sja1000_platform_data colibri_can_platdata = {
+ .osc_freq = 24000000,
+ .ocr = (OCR_MODE_NORMAL | OCR_TX0_PUSHPULL),
+ .cdr = CDR_CLK_OFF | /* Clock off (CLKOUT pin) */
+ CDR_CBP, /* CAN input comparator bypass */
+};
+
+static struct platform_device colibri_can_device = {
+ .name = "sja1000_platform",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(colibri_can_resource),
+ .resource = colibri_can_resource,
+ .dev = {
+ .platform_data = &colibri_can_platdata,
+ }
+};
+#endif /* CONFIG_CAN_SJA1000 | CONFIG_CAN_SJA1000_MODULE */
+
/* Clocks */
static struct tegra_clk_init_table colibri_t20_clk_init_table[] __initdata = {
/* name parent rate enabled */
@@ -153,6 +277,7 @@ static struct tegra_clk_init_table colibri_t20_clk_init_table[] __initdata = {
{"vde", "pll_c", 240000000, false},
{"ndflash", "pll_p", 108000000, false},
+ {"nor", "pll_p", 86500000, true},
//[ 2.284308] kernel BUG at drivers/spi/spi-tegra.c:254!
//[ 2.289454] Unable to handle kernel NULL pointer dereference at virtual
@@ -165,10 +290,13 @@ static struct tegra_clk_init_table colibri_t20_clk_init_table[] __initdata = {
/* GPIO */
static struct gpio colibri_t20_gpios[] = {
+#if !defined(IRIS) && !defined(CONFIG_CAN_MCP251X) && \
+ !defined(CONFIG_CAN_MCP251X_MODULE) && \
+ !defined(CONFIG_CAN_SJA1000) && \
+ !defined(CONFIG_CAN_SJA1000_MODULE)
//conflicts with CAN interrupt on Colibri Evaluation Board and MECS Tellurium
//xPOD1 CAN
//conflicts with DAC_PSAVE# on Iris
-#ifndef IRIS
{TEGRA_GPIO_PA0, GPIOF_IN, "SODIMM pin 73"},
#endif
{TEGRA_GPIO_PA2, GPIOF_IN, "SODIMM pin 186"},
@@ -178,10 +306,14 @@ static struct gpio colibri_t20_gpios[] = {
{TEGRA_GPIO_PB2, GPIOF_IN, "SODIMM pin 154"},
//multiplexed VI_D7
{TEGRA_GPIO_PB4, GPIOF_IN, "SODIMM pin 59"},
+#if !defined(CONFIG_SPI_GPIO) && !defined(CONFIG_SPI_GPIO_MODULE)
//conflicts with MECS Tellurium xPOD2 SSPCLK2
{TEGRA_GPIO_PB6, GPIOF_IN, "SODIMM pin 55"},
+#endif
+#ifndef MECS_TELLURIUM_XPOD2
//conflicts with MECS Tellurium xPOD2 SSPFRM2
{TEGRA_GPIO_PB7, GPIOF_IN, "SODIMM pin 63"},
+#endif
#ifndef COLIBRI_T20_VI
{TEGRA_GPIO_PD5, GPIOF_IN, "SODI-98, Iris X16-13"},
{TEGRA_GPIO_PD6, GPIOF_IN, "SODIMM pin 81"},
@@ -192,8 +324,10 @@ static struct gpio colibri_t20_gpios[] = {
{TEGRA_GPIO_PK0, GPIOF_IN, "SODIMM pin 150"},
//multiplexed OWR
{TEGRA_GPIO_PK1, GPIOF_IN, "SODIMM pin 152"},
+#if !defined(CONFIG_CAN_MCP251X) && !defined(CONFIG_CAN_MCP251X_MODULE)
//conflicts with CAN reset on MECS Tellurium xPOD1 CAN
{TEGRA_GPIO_PK4, GPIOF_IN, "SODIMM pin 106"},
+#endif
// {TEGRA_GPIO_PK5, GPIOF_IN, "USBC_DET"},
#ifndef CONFIG_KEYBOARD_GPIO
//conflicts with menu key
@@ -217,10 +351,12 @@ static struct gpio colibri_t20_gpios[] = {
{TEGRA_GPIO_PM4, GPIOF_IN, "SODIMM pin 140"},
{TEGRA_GPIO_PM5, GPIOF_IN, "SODIMM pin 142"},
+#ifndef GMI_32BIT
{TEGRA_GPIO_PN0, GPIOF_IN, "SODIMM pin 174"},
{TEGRA_GPIO_PN1, GPIOF_IN, "SODIMM pin 176"},
{TEGRA_GPIO_PN2, GPIOF_IN, "SODIMM pin 178"},
{TEGRA_GPIO_PN3, GPIOF_IN, "SODIMM pin 180"},
+#endif
{TEGRA_GPIO_PN4, GPIOF_IN, "SODIMM pin 160"},
{TEGRA_GPIO_PN5, GPIOF_IN, "SODIMM pin 158"},
{TEGRA_GPIO_PN6, GPIOF_IN, "SODIMM pin 162"},
@@ -254,7 +390,7 @@ static struct gpio colibri_t20_gpios[] = {
{TEGRA_GPIO_PX7, GPIOF_IN, "104, I X14 ForceOFF#"},
{TEGRA_GPIO_PZ2, GPIOF_IN, "SODIMM pin 156"},
{TEGRA_GPIO_PZ4, GPIOF_IN, "SODIMM pin 164"},
-#ifndef SDHCI_8BIT
+#if !defined(GMI_32BIT) && !defined SDHCI_8BIT
{TEGRA_GPIO_PAA4, GPIOF_IN, "SODIMM pin 166"},
{TEGRA_GPIO_PAA5, GPIOF_IN, "SODIMM pin 168"},
{TEGRA_GPIO_PAA6, GPIOF_IN, "SODIMM pin 170"},
@@ -456,6 +592,7 @@ static struct platform_device colibri_t20_keys_device = {
};
#endif /* CONFIG_KEYBOARD_GPIO */
+#ifndef GMI_32BIT
/* MMC/SD */
static struct tegra_sdhci_platform_data colibri_t20_sdhci_platform_data = {
@@ -477,6 +614,7 @@ int __init colibri_t20_sdhci_init(void)
return 0;
}
+#endif /* !GMI_32BIT */
/* NAND */
@@ -696,11 +834,34 @@ static struct platform_device tegra_rtc_device = {
/* SPI */
+#if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
+#ifdef MECS_TELLURIUM_XPOD2
+struct spi_gpio_platform_data xpod2_spi_platform_data = {
+ .sck = TEGRA_GPIO_PB6, /* SSPCLK2 */
+ .mosi = TEGRA_GPIO_PW2, /* SSPTXD2 */
+ .miso = TEGRA_GPIO_PW3, /* SSPRXD2 */
+ .num_chipselect = 1,
+};
+
+static struct platform_device xpod2_spi_device = {
+ .name = "spi_gpio",
+ .id = 4,
+ .dev = {
+ .platform_data = &xpod2_spi_platform_data,
+ }
+};
+#endif /* MECS_TELLURIUM_XPOD2 */
+#endif /* CONFIG_SPI_GPIO | CONFIG_SPI_GPIO_MODULE */
+
#if defined(CONFIG_SPI_TEGRA) && defined(CONFIG_SPI_SPIDEV)
static struct spi_board_info tegra_spi_devices[] __initdata = {
{
.bus_num = 3, /* SPI4: Colibri SSP */
+#if !defined(CONFIG_CAN_MCP251X) && !defined(CONFIG_CAN_MCP251X_MODULE)
.chip_select = 0,
+#else /* !CONFIG_CAN_MCP251X & !CONFIG_CAN_MCP251X_MODULE */
+ .chip_select = 1,
+#endif /* !CONFIG_CAN_MCP251X & !CONFIG_CAN_MCP251X_MODULE */
.irq = 0,
.max_speed_hz = 50000000,
.modalias = "spidev",
@@ -884,7 +1045,9 @@ late_initcall(colibri_t20_thermal_debug_init);
static struct platform_device *colibri_t20_uart_devices[] __initdata = {
&tegra_uarta_device, /* Colibri FFUART */
+#ifndef GMI_32BIT
&tegra_uartd_device, /* Colibri BTUART */
+#endif
&tegra_uartb_device, /* Colibri STDUART */
};
@@ -947,7 +1110,9 @@ static void __init colibri_t20_uart_init(void)
colibri_t20_uart_pdata.parent_clk_count = ARRAY_SIZE(uart_parent_clk);
tegra_uarta_device.dev.platform_data = &colibri_t20_uart_pdata;
tegra_uartb_device.dev.platform_data = &colibri_t20_uart_pdata;
+#ifndef GMI_32BIT
tegra_uartd_device.dev.platform_data = &colibri_t20_uart_pdata;
+#endif
/* Register low speed only if it is selected */
if (!is_tegra_debug_uartport_hs())
@@ -1085,8 +1250,12 @@ static struct tegra_usb_platform_data tegra_ehci3_utmi_pdata = {
.hot_plug = true,
.power_off_on_suspend = false,
.remote_wakeup_supported = false,
+#ifdef MECS_TELLURIUM_XPOD2
+ .vbus_gpio = -1,
+#else
.vbus_gpio = USBH_PEN,
.vbus_gpio_inverted = 1,
+#endif
.vbus_reg = NULL,
},
};
@@ -1285,6 +1454,9 @@ static struct platform_device *colibri_t20_devices[] __initdata = {
&tegra_pcm_device,
&colibri_t20_audio_device,
&tegra_spi_device4,
+#ifdef MECS_TELLURIUM_XPOD2
+ &xpod2_spi_device,
+#endif
&tegra_led_pwm_device,
&tegra_pwfm1_device,
#ifndef MECS_TELLURIUM
@@ -1302,6 +1474,13 @@ static void __init colibri_t20_init(void)
{
tegra_clk_init_from_table(colibri_t20_clk_init_table);
colibri_t20_pinmux_init();
+#if defined(CONFIG_CAN_SJA1000) || defined(CONFIG_CAN_SJA1000_MODULE)
+ writel(TEGRA_SNOR_CONFIG_SNOR_CS(4), TEGRA_SNOR_CONFIG_REG);
+ writel(TEGRA_SNOR_CONFIG_GO | TEGRA_SNOR_CONFIG_SNOR_CS(4), TEGRA_SNOR_CONFIG_REG);
+ colibri_can_resource[1].start = gpio_to_irq(TEGRA_GPIO_PA0);
+ colibri_can_resource[1].end = gpio_to_irq(TEGRA_GPIO_PA0);
+ platform_device_register(&colibri_can_device);
+#endif /* CONFIG_CAN_SJA1000 | CONFIG_CAN_SJA1000_MODULE */
colibri_t20_thermd_alert_init();
colibri_t20_i2c_init();
colibri_t20_uart_init();
@@ -1314,7 +1493,9 @@ static void __init colibri_t20_init(void)
platform_add_devices(colibri_t20_devices,
ARRAY_SIZE(colibri_t20_devices));
tegra_ram_console_debug_init();
+#ifndef GMI_32BIT
colibri_t20_sdhci_init();
+#endif
colibri_t20_regulator_init();
// tegra_das_device.dev.platform_data = &tegra_das_pdata;
@@ -1332,6 +1513,7 @@ static void __init colibri_t20_init(void)
colibri_t20_gpio_init();
colibri_t20_register_spidev();
+ colibri_t20_mcp2515_can_init();
#ifdef CONFIG_VIDEO_TEGRA
t20_get_tegra_vi01_device()->dev.platform_data = &tegra_camera_platform_data;
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-18 03:28:04 +0000