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633 lines
17 KiB
633 lines
17 KiB
/* |
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* linux/arch/arm/mach-omap1/board-osk.c |
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* |
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* Board specific init for OMAP5912 OSK |
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* |
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* Written by Dirk Behme <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation; either version 2 of the License, or (at your |
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* option) any later version. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <linux/gpio.h> |
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#include <linux/gpio/machine.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/interrupt.h> |
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#include <linux/irq.h> |
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#include <linux/i2c.h> |
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#include <linux/leds.h> |
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#include <linux/smc91x.h> |
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#include <linux/omapfb.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/partitions.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/mfd/tps65010.h> |
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#include <linux/platform_data/gpio-omap.h> |
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#include <linux/platform_data/omap1_bl.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/map.h> |
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#include "flash.h" |
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#include <mach/mux.h> |
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#include <mach/tc.h> |
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#include <mach/hardware.h> |
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#include <mach/usb.h> |
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#include "common.h" |
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/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */ |
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#define OMAP_GPIO_LABEL "gpio-0-15" |
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/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */ |
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#define OMAP_OSK_ETHR_START 0x04800300 |
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/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with |
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* alternate pin configurations for hardware-controlled blinking. |
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*/ |
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#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) |
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# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) |
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# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) |
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# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) |
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# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) |
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# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) |
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# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) |
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static struct mtd_partition osk_partitions[] = { |
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/* bootloader (U-Boot, etc) in first sector */ |
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{ |
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.name = "bootloader", |
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.offset = 0, |
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.size = SZ_128K, |
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.mask_flags = MTD_WRITEABLE, /* force read-only */ |
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}, |
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/* bootloader params in the next sector */ |
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{ |
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.name = "params", |
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.offset = MTDPART_OFS_APPEND, |
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.size = SZ_128K, |
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.mask_flags = 0, |
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}, { |
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.name = "kernel", |
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.offset = MTDPART_OFS_APPEND, |
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.size = SZ_2M, |
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.mask_flags = 0 |
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}, { |
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.name = "filesystem", |
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.offset = MTDPART_OFS_APPEND, |
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.size = MTDPART_SIZ_FULL, |
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.mask_flags = 0 |
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} |
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}; |
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static struct physmap_flash_data osk_flash_data = { |
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.width = 2, |
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.set_vpp = omap1_set_vpp, |
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.parts = osk_partitions, |
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.nr_parts = ARRAY_SIZE(osk_partitions), |
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}; |
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static struct resource osk_flash_resource = { |
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/* this is on CS3, wherever it's mapped */ |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device osk5912_flash_device = { |
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.name = "physmap-flash", |
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.id = 0, |
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.dev = { |
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.platform_data = &osk_flash_data, |
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}, |
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.num_resources = 1, |
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.resource = &osk_flash_resource, |
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}; |
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static struct smc91x_platdata osk5912_smc91x_info = { |
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.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, |
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.leda = RPC_LED_100_10, |
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.ledb = RPC_LED_TX_RX, |
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}; |
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static struct resource osk5912_smc91x_resources[] = { |
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[0] = { |
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.start = OMAP_OSK_ETHR_START, /* Physical */ |
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.end = OMAP_OSK_ETHR_START + 0xf, |
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.flags = IORESOURCE_MEM, |
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}, |
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[1] = { |
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
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}, |
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}; |
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static struct platform_device osk5912_smc91x_device = { |
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.name = "smc91x", |
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.id = -1, |
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.dev = { |
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.platform_data = &osk5912_smc91x_info, |
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}, |
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.num_resources = ARRAY_SIZE(osk5912_smc91x_resources), |
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.resource = osk5912_smc91x_resources, |
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}; |
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static struct resource osk5912_cf_resources[] = { |
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[0] = { |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct platform_device osk5912_cf_device = { |
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.name = "omap_cf", |
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.id = -1, |
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.dev = { |
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.platform_data = (void *) 2 /* CS2 */, |
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}, |
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.num_resources = ARRAY_SIZE(osk5912_cf_resources), |
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.resource = osk5912_cf_resources, |
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}; |
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static struct platform_device *osk5912_devices[] __initdata = { |
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&osk5912_flash_device, |
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&osk5912_smc91x_device, |
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&osk5912_cf_device, |
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}; |
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static const struct gpio_led tps_leds[] = { |
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/* NOTE: D9 and D2 have hardware blink support. |
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* Also, D9 requires non-battery power. |
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*/ |
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{ .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", |
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.default_trigger = "disk-activity", }, |
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{ .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, |
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{ .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, |
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.default_trigger = "heartbeat", }, |
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}; |
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static struct gpio_led_platform_data tps_leds_data = { |
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.num_leds = 3, |
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.leds = tps_leds, |
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}; |
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static struct platform_device osk5912_tps_leds = { |
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.name = "leds-gpio", |
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.id = 0, |
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.dev.platform_data = &tps_leds_data, |
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}; |
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static int osk_tps_setup(struct i2c_client *client, void *context) |
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{ |
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if (!IS_BUILTIN(CONFIG_TPS65010)) |
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return -ENOSYS; |
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/* Set GPIO 1 HIGH to disable VBUS power supply; |
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* OHCI driver powers it up/down as needed. |
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*/ |
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gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); |
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gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); |
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/* Free the GPIO again as the driver will request it */ |
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gpio_free(OSK_TPS_GPIO_USB_PWR_EN); |
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/* Set GPIO 2 high so LED D3 is off by default */ |
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tps65010_set_gpio_out_value(GPIO2, HIGH); |
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/* Set GPIO 3 low to take ethernet out of reset */ |
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gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); |
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gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); |
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/* GPIO4 is VDD_DSP */ |
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gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); |
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gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); |
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/* REVISIT if DSP support isn't configured, power it off ... */ |
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/* Let LED1 (D9) blink; leds-gpio may override it */ |
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tps65010_set_led(LED1, BLINK); |
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/* Set LED2 off by default */ |
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tps65010_set_led(LED2, OFF); |
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/* Enable LOW_PWR handshake */ |
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tps65010_set_low_pwr(ON); |
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/* Switch VLDO2 to 3.0V for AIC23 */ |
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tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V |
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| TPS_LDO1_ENABLE); |
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/* register these three LEDs */ |
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osk5912_tps_leds.dev.parent = &client->dev; |
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platform_device_register(&osk5912_tps_leds); |
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return 0; |
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} |
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static struct tps65010_board tps_board = { |
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.base = OSK_TPS_GPIO_BASE, |
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.outmask = 0x0f, |
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.setup = osk_tps_setup, |
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}; |
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static struct i2c_board_info __initdata osk_i2c_board_info[] = { |
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{ |
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/* This device will get the name "i2c-tps65010" */ |
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I2C_BOARD_INFO("tps65010", 0x48), |
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.dev_name = "tps65010", |
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.platform_data = &tps_board, |
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}, |
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{ |
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I2C_BOARD_INFO("tlv320aic23", 0x1B), |
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}, |
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/* TODO when driver support is ready: |
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* - optionally on Mistral, ov9640 camera sensor at 0x30 |
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*/ |
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}; |
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static void __init osk_init_smc91x(void) |
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{ |
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u32 l; |
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if ((gpio_request(0, "smc_irq")) < 0) { |
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printk("Error requesting gpio 0 for smc91x irq\n"); |
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return; |
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} |
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/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ |
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l = omap_readl(EMIFS_CCS(1)); |
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l |= 0x3; |
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omap_writel(l, EMIFS_CCS(1)); |
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} |
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static void __init osk_init_cf(void) |
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{ |
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omap_cfg_reg(M7_1610_GPIO62); |
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if ((gpio_request(62, "cf_irq")) < 0) { |
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printk("Error requesting gpio 62 for CF irq\n"); |
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return; |
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} |
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/* the CF I/O IRQ is really active-low */ |
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irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); |
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} |
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static struct gpiod_lookup_table osk_usb_gpio_table = { |
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.dev_id = "ohci", |
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.table = { |
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/* Power GPIO on the I2C-attached TPS65010 */ |
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GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH), |
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GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent", |
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GPIO_ACTIVE_HIGH), |
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}, |
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}; |
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static struct omap_usb_config osk_usb_config __initdata = { |
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/* has usb host connector (A) ... for development it can also |
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* be used, with a NONSTANDARD gender-bending cable/dongle, as |
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* a peripheral. |
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*/ |
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#if IS_ENABLED(CONFIG_USB_OMAP) |
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.register_dev = 1, |
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.hmc_mode = 0, |
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#else |
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.register_host = 1, |
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.hmc_mode = 16, |
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.rwc = 1, |
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#endif |
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.pins[0] = 2, |
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}; |
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#ifdef CONFIG_OMAP_OSK_MISTRAL |
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static const struct omap_lcd_config osk_lcd_config __initconst = { |
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.ctrl_name = "internal", |
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}; |
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#endif |
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#ifdef CONFIG_OMAP_OSK_MISTRAL |
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#include <linux/input.h> |
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#include <linux/property.h> |
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#include <linux/spi/spi.h> |
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#include <linux/spi/ads7846.h> |
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#include <linux/platform_data/keypad-omap.h> |
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static const struct property_entry mistral_at24_properties[] = { |
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PROPERTY_ENTRY_U32("pagesize", 16), |
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{ } |
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}; |
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static struct i2c_board_info __initdata mistral_i2c_board_info[] = { |
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{ |
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/* NOTE: powered from LCD supply */ |
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I2C_BOARD_INFO("24c04", 0x50), |
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.properties = mistral_at24_properties, |
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}, |
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/* TODO when driver support is ready: |
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* - optionally ov9640 camera sensor at 0x30 |
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*/ |
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}; |
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static const unsigned int osk_keymap[] = { |
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/* KEY(col, row, code) */ |
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KEY(0, 0, KEY_F1), /* SW4 */ |
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KEY(3, 0, KEY_UP), /* (sw2/up) */ |
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KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ |
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KEY(2, 1, KEY_LEFT), /* (sw2/left) */ |
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KEY(0, 2, KEY_SPACE), /* SW3 */ |
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KEY(1, 2, KEY_ESC), /* SW6 */ |
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KEY(2, 2, KEY_DOWN), /* (sw2/down) */ |
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KEY(2, 3, KEY_ENTER), /* (sw2/select) */ |
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KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ |
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}; |
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static const struct matrix_keymap_data osk_keymap_data = { |
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.keymap = osk_keymap, |
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.keymap_size = ARRAY_SIZE(osk_keymap), |
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}; |
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static struct omap_kp_platform_data osk_kp_data = { |
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.rows = 8, |
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.cols = 8, |
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.keymap_data = &osk_keymap_data, |
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.delay = 9, |
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}; |
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static struct resource osk5912_kp_resources[] = { |
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[0] = { |
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.start = INT_KEYBOARD, |
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.end = INT_KEYBOARD, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct platform_device osk5912_kp_device = { |
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.name = "omap-keypad", |
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.id = -1, |
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.dev = { |
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.platform_data = &osk_kp_data, |
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}, |
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.num_resources = ARRAY_SIZE(osk5912_kp_resources), |
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.resource = osk5912_kp_resources, |
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}; |
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static struct omap_backlight_config mistral_bl_data = { |
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.default_intensity = 0xa0, |
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}; |
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static struct platform_device mistral_bl_device = { |
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.name = "omap-bl", |
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.id = -1, |
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.dev = { |
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.platform_data = &mistral_bl_data, |
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}, |
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}; |
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static struct platform_device osk5912_lcd_device = { |
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.name = "lcd_osk", |
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.id = -1, |
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}; |
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static const struct gpio_led mistral_gpio_led_pins[] = { |
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{ |
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.name = "mistral:red", |
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.default_trigger = "heartbeat", |
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.gpio = 3, |
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}, |
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{ |
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.name = "mistral:green", |
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.default_trigger = "cpu0", |
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.gpio = OMAP_MPUIO(4), |
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}, |
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}; |
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static struct gpio_led_platform_data mistral_gpio_led_data = { |
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.leds = mistral_gpio_led_pins, |
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.num_leds = ARRAY_SIZE(mistral_gpio_led_pins), |
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}; |
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static struct platform_device mistral_gpio_leds = { |
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.name = "leds-gpio", |
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.id = -1, |
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.dev = { |
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.platform_data = &mistral_gpio_led_data, |
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}, |
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}; |
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static struct platform_device *mistral_devices[] __initdata = { |
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&osk5912_kp_device, |
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&mistral_bl_device, |
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&osk5912_lcd_device, |
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&mistral_gpio_leds, |
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}; |
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static int mistral_get_pendown_state(void) |
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{ |
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return !gpio_get_value(4); |
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} |
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static const struct ads7846_platform_data mistral_ts_info = { |
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.model = 7846, |
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.vref_delay_usecs = 100, /* internal, no capacitor */ |
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.x_plate_ohms = 419, |
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.y_plate_ohms = 486, |
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.get_pendown_state = mistral_get_pendown_state, |
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}; |
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static struct spi_board_info __initdata mistral_boardinfo[] = { { |
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/* MicroWire (bus 2) CS0 has an ads7846e */ |
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.modalias = "ads7846", |
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.platform_data = &mistral_ts_info, |
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.max_speed_hz = 120000 /* max sample rate at 3V */ |
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* 26 /* command + data + overhead */, |
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.bus_num = 2, |
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.chip_select = 0, |
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} }; |
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static irqreturn_t |
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osk_mistral_wake_interrupt(int irq, void *ignored) |
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{ |
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return IRQ_HANDLED; |
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} |
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static void __init osk_mistral_init(void) |
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{ |
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/* NOTE: we could actually tell if there's a Mistral board |
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* attached, e.g. by trying to read something from the ads7846. |
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* But this arch_init() code is too early for that, since we |
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* can't talk to the ads or even the i2c eeprom. |
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*/ |
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|
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/* parallel camera interface */ |
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omap_cfg_reg(J15_1610_CAM_LCLK); |
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omap_cfg_reg(J18_1610_CAM_D7); |
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omap_cfg_reg(J19_1610_CAM_D6); |
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omap_cfg_reg(J14_1610_CAM_D5); |
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omap_cfg_reg(K18_1610_CAM_D4); |
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omap_cfg_reg(K19_1610_CAM_D3); |
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omap_cfg_reg(K15_1610_CAM_D2); |
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omap_cfg_reg(K14_1610_CAM_D1); |
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omap_cfg_reg(L19_1610_CAM_D0); |
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omap_cfg_reg(L18_1610_CAM_VS); |
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omap_cfg_reg(L15_1610_CAM_HS); |
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omap_cfg_reg(M19_1610_CAM_RSTZ); |
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omap_cfg_reg(Y15_1610_CAM_OUTCLK); |
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|
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/* serial camera interface */ |
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omap_cfg_reg(H19_1610_CAM_EXCLK); |
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omap_cfg_reg(W13_1610_CCP_CLKM); |
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omap_cfg_reg(Y12_1610_CCP_CLKP); |
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/* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ |
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/* omap_cfg_reg(Y14_1610_CCP_DATAM); */ |
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omap_cfg_reg(W14_1610_CCP_DATAP); |
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|
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/* CAM_PWDN */ |
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if (gpio_request(11, "cam_pwdn") == 0) { |
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omap_cfg_reg(N20_1610_GPIO11); |
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gpio_direction_output(11, 0); |
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} else |
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pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); |
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|
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/* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ |
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gpio_request(6, "ts_busy"); |
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gpio_direction_input(6); |
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omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ |
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gpio_request(4, "ts_int"); |
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gpio_direction_input(4); |
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irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); |
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|
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mistral_boardinfo[0].irq = gpio_to_irq(4); |
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spi_register_board_info(mistral_boardinfo, |
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ARRAY_SIZE(mistral_boardinfo)); |
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|
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/* the sideways button (SW1) is for use as a "wakeup" button |
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* |
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* NOTE: The Mistral board has the wakeup button (SW1) wired |
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* to the LCD 3.3V rail, which is powered down during suspend. |
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* To allow this button to wake up the omap, work around this |
|
* HW bug by rewiring SW1 to use the main 3.3V rail. |
|
*/ |
|
omap_cfg_reg(N15_1610_MPUIO2); |
|
if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { |
|
int ret = 0; |
|
int irq = gpio_to_irq(OMAP_MPUIO(2)); |
|
|
|
gpio_direction_input(OMAP_MPUIO(2)); |
|
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); |
|
/* share the IRQ in case someone wants to use the |
|
* button for more than wakeup from system sleep. |
|
*/ |
|
ret = request_irq(irq, |
|
&osk_mistral_wake_interrupt, |
|
IRQF_SHARED, "mistral_wakeup", |
|
&osk_mistral_wake_interrupt); |
|
if (ret != 0) { |
|
gpio_free(OMAP_MPUIO(2)); |
|
printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", |
|
ret); |
|
} else |
|
enable_irq_wake(irq); |
|
} else |
|
printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); |
|
|
|
/* LCD: backlight, and power; power controls other devices on the |
|
* board, like the touchscreen, EEPROM, and wakeup (!) switch. |
|
*/ |
|
omap_cfg_reg(PWL); |
|
if (gpio_request(2, "lcd_pwr") == 0) |
|
gpio_direction_output(2, 1); |
|
|
|
/* |
|
* GPIO based LEDs |
|
*/ |
|
omap_cfg_reg(P18_1610_GPIO3); |
|
omap_cfg_reg(MPUIO4); |
|
|
|
i2c_register_board_info(1, mistral_i2c_board_info, |
|
ARRAY_SIZE(mistral_i2c_board_info)); |
|
|
|
platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); |
|
} |
|
#else |
|
static void __init osk_mistral_init(void) { } |
|
#endif |
|
|
|
#define EMIFS_CS3_VAL (0x88013141) |
|
|
|
static void __init osk_init(void) |
|
{ |
|
u32 l; |
|
|
|
osk_init_smc91x(); |
|
osk_init_cf(); |
|
|
|
/* Workaround for wrong CS3 (NOR flash) timing |
|
* There are some U-Boot versions out there which configure |
|
* wrong CS3 memory timings. This mainly leads to CRC |
|
* or similar errors if you use NOR flash (e.g. with JFFS2) |
|
*/ |
|
l = omap_readl(EMIFS_CCS(3)); |
|
if (l != EMIFS_CS3_VAL) |
|
omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); |
|
|
|
osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); |
|
osk_flash_resource.end += SZ_32M - 1; |
|
osk5912_smc91x_resources[1].start = gpio_to_irq(0); |
|
osk5912_smc91x_resources[1].end = gpio_to_irq(0); |
|
osk5912_cf_resources[0].start = gpio_to_irq(62); |
|
osk5912_cf_resources[0].end = gpio_to_irq(62); |
|
platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); |
|
|
|
l = omap_readl(USB_TRANSCEIVER_CTRL); |
|
l |= (3 << 1); |
|
omap_writel(l, USB_TRANSCEIVER_CTRL); |
|
|
|
gpiod_add_lookup_table(&osk_usb_gpio_table); |
|
omap1_usb_init(&osk_usb_config); |
|
|
|
/* irq for tps65010 chip */ |
|
/* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ |
|
if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) |
|
gpio_direction_input(OMAP_MPUIO(1)); |
|
|
|
omap_serial_init(); |
|
osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1)); |
|
omap_register_i2c_bus(1, 400, osk_i2c_board_info, |
|
ARRAY_SIZE(osk_i2c_board_info)); |
|
osk_mistral_init(); |
|
|
|
#ifdef CONFIG_OMAP_OSK_MISTRAL |
|
omapfb_set_lcd_config(&osk_lcd_config); |
|
#endif |
|
|
|
} |
|
|
|
MACHINE_START(OMAP_OSK, "TI-OSK") |
|
/* Maintainer: Dirk Behme <[email protected]> */ |
|
.atag_offset = 0x100, |
|
.map_io = omap16xx_map_io, |
|
.init_early = omap1_init_early, |
|
.init_irq = omap1_init_irq, |
|
.handle_irq = omap1_handle_irq, |
|
.init_machine = osk_init, |
|
.init_late = omap1_init_late, |
|
.init_time = omap1_timer_init, |
|
.restart = omap1_restart, |
|
MACHINE_END
|
|
|