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-rw-r--r--arch/arm/mach-omap1/board-osk.c454
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diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
new file mode 100644
index 0000000000..7d5e6f9039
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+++ b/arch/arm/mach-omap1/board-osk.c
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+/*
+ * linux/arch/arm/mach-omap1/board-osk.c
+ *
+ * Board specific init for OMAP5912 OSK
+ *
+ * Written by Dirk Behme <dirk.behme@de.bosch.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/machine.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/smc91x.h>
+#include <linux/omapfb.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mfd/tps65010.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/omap1_bl.h>
+#include <linux/soc/ti/omap1-io.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "tc.h"
+#include "flash.h"
+#include "mux.h"
+#include "hardware.h"
+#include "usb.h"
+#include "common.h"
+
+/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
+#define OMAP_GPIO_LABEL "gpio-0-15"
+
+/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
+#define OMAP_OSK_ETHR_START 0x04800300
+
+/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
+ * alternate pin configurations for hardware-controlled blinking.
+ */
+#define OSK_TPS_GPIO_USB_PWR_EN 0
+#define OSK_TPS_GPIO_LED_D3 1
+#define OSK_TPS_GPIO_LAN_RESET 2
+#define OSK_TPS_GPIO_DSP_PWR_EN 3
+#define OSK_TPS_GPIO_LED_D9 4
+#define OSK_TPS_GPIO_LED_D2 5
+
+static struct mtd_partition osk_partitions[] = {
+ /* bootloader (U-Boot, etc) in first sector */
+ {
+ .name = "bootloader",
+ .offset = 0,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ /* bootloader params in the next sector */
+ {
+ .name = "params",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_128K,
+ .mask_flags = 0,
+ }, {
+ .name = "kernel",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M,
+ .mask_flags = 0
+ }, {
+ .name = "filesystem",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ .mask_flags = 0
+ }
+};
+
+static struct physmap_flash_data osk_flash_data = {
+ .width = 2,
+ .set_vpp = omap1_set_vpp,
+ .parts = osk_partitions,
+ .nr_parts = ARRAY_SIZE(osk_partitions),
+};
+
+static struct resource osk_flash_resource = {
+ /* this is on CS3, wherever it's mapped */
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device osk5912_flash_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &osk_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &osk_flash_resource,
+};
+
+static struct smc91x_platdata osk5912_smc91x_info = {
+ .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+ .leda = RPC_LED_100_10,
+ .ledb = RPC_LED_TX_RX,
+};
+
+static struct resource osk5912_smc91x_resources[] = {
+ [0] = {
+ .start = OMAP_OSK_ETHR_START, /* Physical */
+ .end = OMAP_OSK_ETHR_START + 0xf,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+ },
+};
+
+static struct platform_device osk5912_smc91x_device = {
+ .name = "smc91x",
+ .id = -1,
+ .dev = {
+ .platform_data = &osk5912_smc91x_info,
+ },
+ .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
+ .resource = osk5912_smc91x_resources,
+};
+
+static struct resource osk5912_cf_resources[] = {
+ [0] = {
+ .flags = IORESOURCE_IRQ,
+ },
+ [1] = {
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device osk5912_cf_device = {
+ .name = "omap_cf",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(osk5912_cf_resources),
+ .resource = osk5912_cf_resources,
+};
+
+static struct platform_device *osk5912_devices[] __initdata = {
+ &osk5912_flash_device,
+ &osk5912_smc91x_device,
+ &osk5912_cf_device,
+};
+
+static const struct gpio_led tps_leds[] = {
+ /* NOTE: D9 and D2 have hardware blink support.
+ * Also, D9 requires non-battery power.
+ */
+ { .name = "d9", .default_trigger = "disk-activity", },
+ { .name = "d2", },
+ { .name = "d3", .default_trigger = "heartbeat", },
+};
+
+static struct gpiod_lookup_table tps_leds_gpio_table = {
+ .dev_id = "leds-gpio",
+ .table = {
+ /* Use local offsets on TPS65010 */
+ GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D9, NULL, 0, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D2, NULL, 1, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D3, NULL, 2, GPIO_ACTIVE_LOW),
+ { }
+ },
+};
+
+static struct gpio_led_platform_data tps_leds_data = {
+ .num_leds = 3,
+ .leds = tps_leds,
+};
+
+static struct platform_device osk5912_tps_leds = {
+ .name = "leds-gpio",
+ .id = 0,
+ .dev.platform_data = &tps_leds_data,
+};
+
+/* The board just hold these GPIOs hogged from setup to teardown */
+static struct gpio_desc *eth_reset;
+static struct gpio_desc *vdd_dsp;
+
+static int osk_tps_setup(struct i2c_client *client, struct gpio_chip *gc)
+{
+ struct gpio_desc *d;
+ if (!IS_BUILTIN(CONFIG_TPS65010))
+ return -ENOSYS;
+
+ /* Set GPIO 1 HIGH to disable VBUS power supply;
+ * OHCI driver powers it up/down as needed.
+ */
+ d = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en",
+ GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
+ /* Free the GPIO again as the driver will request it */
+ gpiochip_free_own_desc(d);
+
+ /* Set GPIO 2 high so LED D3 is off by default */
+ tps65010_set_gpio_out_value(GPIO2, HIGH);
+
+ /* Set GPIO 3 low to take ethernet out of reset */
+ eth_reset = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_LAN_RESET, "smc_reset",
+ GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW);
+
+ /* GPIO4 is VDD_DSP */
+ vdd_dsp = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power",
+ GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
+ /* REVISIT if DSP support isn't configured, power it off ... */
+
+ /* Let LED1 (D9) blink; leds-gpio may override it */
+ tps65010_set_led(LED1, BLINK);
+
+ /* Set LED2 off by default */
+ tps65010_set_led(LED2, OFF);
+
+ /* Enable LOW_PWR handshake */
+ tps65010_set_low_pwr(ON);
+
+ /* Switch VLDO2 to 3.0V for AIC23 */
+ tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
+ | TPS_LDO1_ENABLE);
+
+ /* register these three LEDs */
+ osk5912_tps_leds.dev.parent = &client->dev;
+ gpiod_add_lookup_table(&tps_leds_gpio_table);
+ platform_device_register(&osk5912_tps_leds);
+
+ return 0;
+}
+
+static void osk_tps_teardown(struct i2c_client *client, struct gpio_chip *gc)
+{
+ gpiochip_free_own_desc(eth_reset);
+ gpiochip_free_own_desc(vdd_dsp);
+}
+
+static struct tps65010_board tps_board = {
+ .outmask = 0x0f,
+ .setup = osk_tps_setup,
+ .teardown = osk_tps_teardown,
+};
+
+static struct i2c_board_info __initdata osk_i2c_board_info[] = {
+ {
+ /* This device will get the name "i2c-tps65010" */
+ I2C_BOARD_INFO("tps65010", 0x48),
+ .dev_name = "tps65010",
+ .platform_data = &tps_board,
+
+ },
+ {
+ I2C_BOARD_INFO("tlv320aic23", 0x1B),
+ },
+ /* TODO when driver support is ready:
+ * - optionally on Mistral, ov9640 camera sensor at 0x30
+ */
+};
+
+static void __init osk_init_smc91x(void)
+{
+ u32 l;
+
+ /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
+ l = omap_readl(EMIFS_CCS(1));
+ l |= 0x3;
+ omap_writel(l, EMIFS_CCS(1));
+}
+
+static void __init osk_init_cf(int seg)
+{
+ struct resource *res = &osk5912_cf_resources[1];
+
+ omap_cfg_reg(M7_1610_GPIO62);
+
+ switch (seg) {
+ /* NOTE: CS0 could be configured too ... */
+ case 1:
+ res->start = OMAP_CS1_PHYS;
+ break;
+ case 2:
+ res->start = OMAP_CS2_PHYS;
+ break;
+ case 3:
+ res->start = omap_cs3_phys();
+ break;
+ }
+
+ res->end = res->start + SZ_8K - 1;
+ osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
+
+ /* NOTE: better EMIFS setup might support more cards; but the
+ * TRM only shows how to affect regular flash signals, not their
+ * CF/PCMCIA variants...
+ */
+ pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
+ seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
+ omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
+ omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
+}
+
+static struct gpiod_lookup_table osk_usb_gpio_table = {
+ .dev_id = "ohci",
+ .table = {
+ /* Power GPIO on the I2C-attached TPS65010 */
+ GPIO_LOOKUP("tps65010", OSK_TPS_GPIO_USB_PWR_EN, "power",
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
+ GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct omap_usb_config osk_usb_config __initdata = {
+ /* has usb host connector (A) ... for development it can also
+ * be used, with a NONSTANDARD gender-bending cable/dongle, as
+ * a peripheral.
+ */
+#if IS_ENABLED(CONFIG_USB_OMAP)
+ .register_dev = 1,
+ .hmc_mode = 0,
+#else
+ .register_host = 1,
+ .hmc_mode = 16,
+ .rwc = 1,
+#endif
+ .pins[0] = 2,
+};
+
+#define EMIFS_CS3_VAL (0x88013141)
+
+static struct gpiod_lookup_table osk_irq_gpio_table = {
+ .dev_id = NULL,
+ .table = {
+ /* GPIO used for SMC91x IRQ */
+ GPIO_LOOKUP(OMAP_GPIO_LABEL, 0, "smc_irq",
+ GPIO_ACTIVE_HIGH),
+ /* GPIO used for CF IRQ */
+ GPIO_LOOKUP("gpio-48-63", 14, "cf_irq",
+ GPIO_ACTIVE_HIGH),
+ /* GPIO used by the TPS65010 chip */
+ GPIO_LOOKUP("mpuio", 1, "tps65010",
+ GPIO_ACTIVE_HIGH),
+ /* GPIOs used for serial wakeup IRQs */
+ GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
+ GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static void __init osk_init(void)
+{
+ struct gpio_desc *d;
+ u32 l;
+
+ osk_init_smc91x();
+ osk_init_cf(2); /* CS2 */
+
+ /* 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;
+
+ /*
+ * Add the GPIOs to be used as IRQs and immediately look them up
+ * to be passed as an IRQ resource. This is ugly but should work
+ * until the day we convert to device tree.
+ */
+ gpiod_add_lookup_table(&osk_irq_gpio_table);
+
+ d = gpiod_get(NULL, "smc_irq", GPIOD_IN);
+ if (IS_ERR(d)) {
+ pr_err("Unable to get SMC IRQ GPIO descriptor\n");
+ } else {
+ irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_RISING);
+ osk5912_smc91x_resources[1] = DEFINE_RES_IRQ(gpiod_to_irq(d));
+ }
+
+ d = gpiod_get(NULL, "cf_irq", GPIOD_IN);
+ if (IS_ERR(d)) {
+ pr_err("Unable to get CF IRQ GPIO descriptor\n");
+ } else {
+ /* the CF I/O IRQ is really active-low */
+ irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_FALLING);
+ osk5912_cf_resources[0] = DEFINE_RES_IRQ(gpiod_to_irq(d));
+ }
+
+ 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);
+
+ omap_serial_init();
+
+ /* irq for tps65010 chip */
+ /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
+ d = gpiod_get(NULL, "tps65010", GPIOD_IN);
+ if (IS_ERR(d))
+ pr_err("Unable to get TPS65010 IRQ GPIO descriptor\n");
+ else
+ osk_i2c_board_info[0].irq = gpiod_to_irq(d);
+ omap_register_i2c_bus(1, 400, osk_i2c_board_info,
+ ARRAY_SIZE(osk_i2c_board_info));
+}
+
+MACHINE_START(OMAP_OSK, "TI-OSK")
+ /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
+ .atag_offset = 0x100,
+ .map_io = omap1_map_io,
+ .init_early = omap1_init_early,
+ .init_irq = omap1_init_irq,
+ .init_machine = osk_init,
+ .init_late = omap1_init_late,
+ .init_time = omap1_timer_init,
+ .restart = omap1_restart,
+MACHINE_END
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