Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 454 insertions, 0 deletions

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
--- /dev/null
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -0,0 +1,454 @@
+/*
+ * 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