15ac408ee5
OMAP tags are deprecrated so drop them. Drop UART config data which decides which UARTs to enable during boot. This is no longer necessary since serial core code disables clocks after inactivity. Background: with new UART idle code, all on-chip UARTs are idled using a configurable inactivity timer (default 5 seconds.) After the inactivity timer, UART clocks are disabled automatically. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
579 lines
15 KiB
C
579 lines
15 KiB
C
/*
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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 <dirk.behme@de.bosch.com>
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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/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/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/i2c/tps65010.h>
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#include <mach/hardware.h>
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#include <asm/gpio.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 <asm/mach/flash.h>
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#include <mach/usb.h>
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#include <mach/mux.h>
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#include <mach/tc.h>
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#include <mach/common.h>
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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 flash_platform_data osk_flash_data = {
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.map_name = "cfi_probe",
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.width = 2,
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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 = "omapflash",
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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 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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.start = OMAP_GPIO_IRQ(0),
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.end = OMAP_GPIO_IRQ(0),
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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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.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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.start = OMAP_GPIO_IRQ(62),
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.end = OMAP_GPIO_IRQ(62),
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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 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 = "ide-disk", },
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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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/* 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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/* 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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I2C_BOARD_INFO("tps65010", 0x48),
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.irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
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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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set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
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}
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static void __init osk_init_irq(void)
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{
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omap1_init_common_hw();
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omap_init_irq();
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omap_gpio_init();
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osk_init_smc91x();
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osk_init_cf();
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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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#ifdef CONFIG_USB_GADGET_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 struct omap_lcd_config osk_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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#endif
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static struct omap_board_config_kernel osk_config[] __initdata = {
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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{ OMAP_TAG_LCD, &osk_lcd_config },
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#endif
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};
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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#include <linux/input.h>
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#include <linux/i2c/at24.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <mach/keypad.h>
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static struct at24_platform_data at24c04 = {
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.byte_len = SZ_4K / 8,
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.page_size = 16,
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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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.platform_data = &at24c04,
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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 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(0, 3, KEY_UP), /* (sw2/up) */
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KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
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KEY(1, 2, KEY_LEFT), /* (sw2/left) */
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KEY(2, 0, KEY_SPACE), /* SW3 */
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KEY(2, 1, KEY_ESC), /* SW6 */
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KEY(2, 2, KEY_DOWN), /* (sw2/down) */
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KEY(3, 2, KEY_ENTER), /* (sw2/select) */
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KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
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0
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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 = (int *) osk_keymap,
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.keymapsize = ARRAY_SIZE(osk_keymap),
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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 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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};
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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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.irq = OMAP_GPIO_IRQ(4),
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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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#ifdef CONFIG_PM
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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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#endif
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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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/* 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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/* 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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/* 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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/* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
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gpio_request(6, "ts_busy");
|
|
gpio_direction_input(6);
|
|
|
|
omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
|
|
gpio_request(4, "ts_int");
|
|
gpio_direction_input(4);
|
|
set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
|
|
|
|
spi_register_board_info(mistral_boardinfo,
|
|
ARRAY_SIZE(mistral_boardinfo));
|
|
|
|
/* the sideways button (SW1) is for use as a "wakeup" button
|
|
*
|
|
* NOTE: The Mistral board has the wakeup button (SW1) wired
|
|
* to the LCD 3.3V rail, which is powered down during suspend.
|
|
* 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));
|
|
set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
|
|
#ifdef CONFIG_PM
|
|
/* 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);
|
|
#endif
|
|
} 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);
|
|
|
|
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;
|
|
|
|
/* 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;
|
|
platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
|
|
omap_board_config = osk_config;
|
|
omap_board_config_size = ARRAY_SIZE(osk_config);
|
|
|
|
l = omap_readl(USB_TRANSCEIVER_CTRL);
|
|
l |= (3 << 1);
|
|
omap_writel(l, USB_TRANSCEIVER_CTRL);
|
|
|
|
omap_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();
|
|
omap_register_i2c_bus(1, 400, osk_i2c_board_info,
|
|
ARRAY_SIZE(osk_i2c_board_info));
|
|
osk_mistral_init();
|
|
}
|
|
|
|
static void __init osk_map_io(void)
|
|
{
|
|
omap1_map_common_io();
|
|
}
|
|
|
|
MACHINE_START(OMAP_OSK, "TI-OSK")
|
|
/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
|
|
.phys_io = 0xfff00000,
|
|
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
|
|
.boot_params = 0x10000100,
|
|
.map_io = osk_map_io,
|
|
.init_irq = osk_init_irq,
|
|
.init_machine = osk_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|