Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 722 insertions, 0 deletions

diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
new file mode 100644
index 0000000000..215149a85d
--- /dev/null
+++ b/arch/mips/ar7/platform.c
@@ -0,0 +1,722 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/vlynq.h>
+#include <linux/leds.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+
+#include <asm/addrspace.h>
+#include <asm/mach-ar7/ar7.h>
+#include <asm/mach-ar7/prom.h>
+
+/*****************************************************************************
+ * VLYNQ Bus
+ ****************************************************************************/
+struct plat_vlynq_data {
+	struct plat_vlynq_ops ops;
+	int gpio_bit;
+	int reset_bit;
+};
+
+static int vlynq_on(struct vlynq_device *dev)
+{
+	int ret;
+	struct plat_vlynq_data *pdata = dev->dev.platform_data;
+
+	ret = gpio_request(pdata->gpio_bit, "vlynq");
+	if (ret)
+		goto out;
+
+	ar7_device_reset(pdata->reset_bit);
+
+	ret = ar7_gpio_disable(pdata->gpio_bit);
+	if (ret)
+		goto out_enabled;
+
+	ret = ar7_gpio_enable(pdata->gpio_bit);
+	if (ret)
+		goto out_enabled;
+
+	ret = gpio_direction_output(pdata->gpio_bit, 0);
+	if (ret)
+		goto out_gpio_enabled;
+
+	msleep(50);
+
+	gpio_set_value(pdata->gpio_bit, 1);
+
+	msleep(50);
+
+	return 0;
+
+out_gpio_enabled:
+	ar7_gpio_disable(pdata->gpio_bit);
+out_enabled:
+	ar7_device_disable(pdata->reset_bit);
+	gpio_free(pdata->gpio_bit);
+out:
+	return ret;
+}
+
+static void vlynq_off(struct vlynq_device *dev)
+{
+	struct plat_vlynq_data *pdata = dev->dev.platform_data;
+
+	ar7_gpio_disable(pdata->gpio_bit);
+	gpio_free(pdata->gpio_bit);
+	ar7_device_disable(pdata->reset_bit);
+}
+
+static struct resource vlynq_low_res[] = {
+	{
+		.name	= "regs",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR7_REGS_VLYNQ0,
+		.end	= AR7_REGS_VLYNQ0 + 0xff,
+	},
+	{
+		.name	= "irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 29,
+		.end	= 29,
+	},
+	{
+		.name	= "mem",
+		.flags	= IORESOURCE_MEM,
+		.start	= 0x04000000,
+		.end	= 0x04ffffff,
+	},
+	{
+		.name	= "devirq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 80,
+		.end	= 111,
+	},
+};
+
+static struct resource vlynq_high_res[] = {
+	{
+		.name	= "regs",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR7_REGS_VLYNQ1,
+		.end	= AR7_REGS_VLYNQ1 + 0xff,
+	},
+	{
+		.name	= "irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 33,
+		.end	= 33,
+	},
+	{
+		.name	= "mem",
+		.flags	= IORESOURCE_MEM,
+		.start	= 0x0c000000,
+		.end	= 0x0cffffff,
+	},
+	{
+		.name	= "devirq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 112,
+		.end	= 143,
+	},
+};
+
+static struct plat_vlynq_data vlynq_low_data = {
+	.ops = {
+		.on	= vlynq_on,
+		.off	= vlynq_off,
+	},
+	.reset_bit	= 20,
+	.gpio_bit	= 18,
+};
+
+static struct plat_vlynq_data vlynq_high_data = {
+	.ops = {
+		.on	= vlynq_on,
+		.off	= vlynq_off,
+	},
+	.reset_bit	= 16,
+	.gpio_bit	= 19,
+};
+
+static struct platform_device vlynq_low = {
+	.id		= 0,
+	.name		= "vlynq",
+	.dev = {
+		.platform_data	= &vlynq_low_data,
+	},
+	.resource	= vlynq_low_res,
+	.num_resources	= ARRAY_SIZE(vlynq_low_res),
+};
+
+static struct platform_device vlynq_high = {
+	.id		= 1,
+	.name		= "vlynq",
+	.dev = {
+		.platform_data	= &vlynq_high_data,
+	},
+	.resource	= vlynq_high_res,
+	.num_resources	= ARRAY_SIZE(vlynq_high_res),
+};
+
+/*****************************************************************************
+ * Flash
+ ****************************************************************************/
+static struct resource physmap_flash_resource = {
+	.name	= "mem",
+	.flags	= IORESOURCE_MEM,
+	.start	= 0x10000000,
+	.end	= 0x107fffff,
+};
+
+static const char *ar7_probe_types[] = { "ar7part", NULL };
+
+static struct physmap_flash_data physmap_flash_data = {
+	.width	= 2,
+	.part_probe_types = ar7_probe_types,
+};
+
+static struct platform_device physmap_flash = {
+	.name		= "physmap-flash",
+	.dev = {
+		.platform_data	= &physmap_flash_data,
+	},
+	.resource	= &physmap_flash_resource,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+static struct resource cpmac_low_res[] = {
+	{
+		.name	= "regs",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR7_REGS_MAC0,
+		.end	= AR7_REGS_MAC0 + 0x7ff,
+	},
+	{
+		.name	= "irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 27,
+		.end	= 27,
+	},
+};
+
+static struct resource cpmac_high_res[] = {
+	{
+		.name	= "regs",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR7_REGS_MAC1,
+		.end	= AR7_REGS_MAC1 + 0x7ff,
+	},
+	{
+		.name	= "irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 41,
+		.end	= 41,
+	},
+};
+
+static struct fixed_phy_status fixed_phy_status __initdata = {
+	.link		= 1,
+	.speed		= 100,
+	.duplex		= 1,
+};
+
+static struct plat_cpmac_data cpmac_low_data = {
+	.reset_bit	= 17,
+	.power_bit	= 20,
+	.phy_mask	= 0x80000000,
+};
+
+static struct plat_cpmac_data cpmac_high_data = {
+	.reset_bit	= 21,
+	.power_bit	= 22,
+	.phy_mask	= 0x7fffffff,
+};
+
+static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device cpmac_low = {
+	.id		= 0,
+	.name		= "cpmac",
+	.dev = {
+		.dma_mask		= &cpmac_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &cpmac_low_data,
+	},
+	.resource	= cpmac_low_res,
+	.num_resources	= ARRAY_SIZE(cpmac_low_res),
+};
+
+static struct platform_device cpmac_high = {
+	.id		= 1,
+	.name		= "cpmac",
+	.dev = {
+		.dma_mask		= &cpmac_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &cpmac_high_data,
+	},
+	.resource	= cpmac_high_res,
+	.num_resources	= ARRAY_SIZE(cpmac_high_res),
+};
+
+static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
+{
+	char name[5], *mac;
+
+	sprintf(name, "mac%c", 'a' + instance);
+	mac = prom_getenv(name);
+	if (!mac && instance) {
+		sprintf(name, "mac%c", 'a');
+		mac = prom_getenv(name);
+	}
+
+	if (mac) {
+		if (!mac_pton(mac, dev_addr)) {
+			pr_warn("cannot parse mac address, using random address\n");
+			eth_random_addr(dev_addr);
+		}
+	} else
+		eth_random_addr(dev_addr);
+}
+
+/*****************************************************************************
+ * USB
+ ****************************************************************************/
+static struct resource usb_res[] = {
+	{
+		.name	= "regs",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR7_REGS_USB,
+		.end	= AR7_REGS_USB + 0xff,
+	},
+	{
+		.name	= "irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= 32,
+		.end	= 32,
+	},
+	{
+		.name	= "mem",
+		.flags	= IORESOURCE_MEM,
+		.start	= 0x03400000,
+		.end	= 0x03401fff,
+	},
+};
+
+static struct platform_device ar7_udc = {
+	.name		= "ar7_udc",
+	.resource	= usb_res,
+	.num_resources	= ARRAY_SIZE(usb_res),
+};
+
+/*****************************************************************************
+ * LEDs
+ ****************************************************************************/
+static const struct gpio_led default_leds[] = {
+	{
+		.name			= "status",
+		.gpio			= 8,
+		.active_low		= 1,
+	},
+};
+
+static const struct gpio_led titan_leds[] = {
+	{ .name = "status", .gpio = 8, .active_low = 1, },
+	{ .name = "wifi", .gpio = 13, .active_low = 1, },
+};
+
+static const struct gpio_led dsl502t_leds[] = {
+	{
+		.name			= "status",
+		.gpio			= 9,
+		.active_low		= 1,
+	},
+	{
+		.name			= "ethernet",
+		.gpio			= 7,
+		.active_low		= 1,
+	},
+	{
+		.name			= "usb",
+		.gpio			= 12,
+		.active_low		= 1,
+	},
+};
+
+static const struct gpio_led dg834g_leds[] = {
+	{
+		.name			= "ppp",
+		.gpio			= 6,
+		.active_low		= 1,
+	},
+	{
+		.name			= "status",
+		.gpio			= 7,
+		.active_low		= 1,
+	},
+	{
+		.name			= "adsl",
+		.gpio			= 8,
+		.active_low		= 1,
+	},
+	{
+		.name			= "wifi",
+		.gpio			= 12,
+		.active_low		= 1,
+	},
+	{
+		.name			= "power",
+		.gpio			= 14,
+		.active_low		= 1,
+		.default_trigger	= "default-on",
+	},
+};
+
+static const struct gpio_led fb_sl_leds[] = {
+	{
+		.name			= "1",
+		.gpio			= 7,
+	},
+	{
+		.name			= "2",
+		.gpio			= 13,
+		.active_low		= 1,
+	},
+	{
+		.name			= "3",
+		.gpio			= 10,
+		.active_low		= 1,
+	},
+	{
+		.name			= "4",
+		.gpio			= 12,
+		.active_low		= 1,
+	},
+	{
+		.name			= "5",
+		.gpio			= 9,
+		.active_low		= 1,
+	},
+};
+
+static const struct gpio_led fb_fon_leds[] = {
+	{
+		.name			= "1",
+		.gpio			= 8,
+	},
+	{
+		.name			= "2",
+		.gpio			= 3,
+		.active_low		= 1,
+	},
+	{
+		.name			= "3",
+		.gpio			= 5,
+	},
+	{
+		.name			= "4",
+		.gpio			= 4,
+		.active_low		= 1,
+	},
+	{
+		.name			= "5",
+		.gpio			= 11,
+		.active_low		= 1,
+	},
+};
+
+static const struct gpio_led gt701_leds[] = {
+	{
+		.name			= "inet:green",
+		.gpio			= 13,
+		.active_low		= 1,
+	},
+	{
+		.name			= "usb",
+		.gpio			= 12,
+		.active_low		= 1,
+	},
+	{
+		.name			= "inet:red",
+		.gpio			= 9,
+		.active_low		= 1,
+	},
+	{
+		.name			= "power:red",
+		.gpio			= 7,
+		.active_low		= 1,
+	},
+	{
+		.name			= "power:green",
+		.gpio			= 8,
+		.active_low		= 1,
+		.default_trigger	= "default-on",
+	},
+	{
+		.name			= "ethernet",
+		.gpio			= 10,
+		.active_low		= 1,
+	},
+};
+
+static struct gpio_led_platform_data ar7_led_data;
+
+static struct platform_device ar7_gpio_leds = {
+	.name = "leds-gpio",
+	.dev = {
+		.platform_data = &ar7_led_data,
+	}
+};
+
+static void __init detect_leds(void)
+{
+	char *prid, *usb_prod;
+
+	/* Default LEDs */
+	ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
+	ar7_led_data.leds = default_leds;
+
+	/* FIXME: the whole thing is unreliable */
+	prid = prom_getenv("ProductID");
+	usb_prod = prom_getenv("usb_prod");
+
+	/* If we can't get the product id from PROM, use the default LEDs */
+	if (!prid)
+		return;
+
+	if (strstr(prid, "Fritz_Box_FON")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
+		ar7_led_data.leds = fb_fon_leds;
+	} else if (strstr(prid, "Fritz_Box_")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
+		ar7_led_data.leds = fb_sl_leds;
+	} else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
+		&& usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
+		ar7_led_data.leds = dsl502t_leds;
+	} else if (strstr(prid, "DG834")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
+		ar7_led_data.leds = dg834g_leds;
+	} else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
+		ar7_led_data.leds = titan_leds;
+	} else if (strstr(prid, "GT701")) {
+		ar7_led_data.num_leds = ARRAY_SIZE(gt701_leds);
+		ar7_led_data.leds = gt701_leds;
+	}
+}
+
+/*****************************************************************************
+ * Watchdog
+ ****************************************************************************/
+static struct resource ar7_wdt_res = {
+	.name		= "regs",
+	.flags		= IORESOURCE_MEM,
+	.start		= -1,	/* Filled at runtime */
+	.end		= -1,	/* Filled at runtime */
+};
+
+static struct platform_device ar7_wdt = {
+	.name		= "ar7_wdt",
+	.resource	= &ar7_wdt_res,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * Init
+ ****************************************************************************/
+static int __init ar7_register_uarts(void)
+{
+#ifdef CONFIG_SERIAL_8250
+	static struct uart_port uart_port __initdata;
+	struct clk *bus_clk;
+	int res;
+
+	memset(&uart_port, 0, sizeof(struct uart_port));
+
+	bus_clk = clk_get(NULL, "bus");
+	if (IS_ERR(bus_clk))
+		panic("unable to get bus clk");
+
+	uart_port.type		= PORT_AR7;
+	uart_port.uartclk	= clk_get_rate(bus_clk) / 2;
+	uart_port.iotype	= UPIO_MEM32;
+	uart_port.flags		= UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF;
+	uart_port.regshift	= 2;
+
+	uart_port.line		= 0;
+	uart_port.irq		= AR7_IRQ_UART0;
+	uart_port.mapbase	= AR7_REGS_UART0;
+	uart_port.membase	= ioremap(uart_port.mapbase, 256);
+
+	res = early_serial_setup(&uart_port);
+	if (res)
+		return res;
+
+	/* Only TNETD73xx have a second serial port */
+	if (ar7_has_second_uart()) {
+		uart_port.line		= 1;
+		uart_port.irq		= AR7_IRQ_UART1;
+		uart_port.mapbase	= UR8_REGS_UART1;
+		uart_port.membase	= ioremap(uart_port.mapbase, 256);
+
+		res = early_serial_setup(&uart_port);
+		if (res)
+			return res;
+	}
+#endif
+
+	return 0;
+}
+
+static void __init titan_fixup_devices(void)
+{
+	/* Set vlynq0 data */
+	vlynq_low_data.reset_bit = 15;
+	vlynq_low_data.gpio_bit = 14;
+
+	/* Set vlynq1 data */
+	vlynq_high_data.reset_bit = 16;
+	vlynq_high_data.gpio_bit = 7;
+
+	/* Set vlynq0 resources */
+	vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
+	vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
+	vlynq_low_res[1].start = 33;
+	vlynq_low_res[1].end = 33;
+	vlynq_low_res[2].start = 0x0c000000;
+	vlynq_low_res[2].end = 0x0fffffff;
+	vlynq_low_res[3].start = 80;
+	vlynq_low_res[3].end = 111;
+
+	/* Set vlynq1 resources */
+	vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
+	vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
+	vlynq_high_res[1].start = 34;
+	vlynq_high_res[1].end = 34;
+	vlynq_high_res[2].start = 0x40000000;
+	vlynq_high_res[2].end = 0x43ffffff;
+	vlynq_high_res[3].start = 112;
+	vlynq_high_res[3].end = 143;
+
+	/* Set cpmac0 data */
+	cpmac_low_data.phy_mask = 0x40000000;
+
+	/* Set cpmac1 data */
+	cpmac_high_data.phy_mask = 0x80000000;
+
+	/* Set cpmac0 resources */
+	cpmac_low_res[0].start = TITAN_REGS_MAC0;
+	cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
+
+	/* Set cpmac1 resources */
+	cpmac_high_res[0].start = TITAN_REGS_MAC1;
+	cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
+}
+
+static int __init ar7_register_devices(void)
+{
+	void __iomem *bootcr;
+	u32 val;
+	int res;
+
+	res = ar7_gpio_init();
+	if (res)
+		pr_warn("unable to register gpios: %d\n", res);
+
+	res = ar7_register_uarts();
+	if (res)
+		pr_err("unable to setup uart(s): %d\n", res);
+
+	res = platform_device_register(&physmap_flash);
+	if (res)
+		pr_warn("unable to register physmap-flash: %d\n", res);
+
+	if (ar7_is_titan())
+		titan_fixup_devices();
+
+	ar7_device_disable(vlynq_low_data.reset_bit);
+	res = platform_device_register(&vlynq_low);
+	if (res)
+		pr_warn("unable to register vlynq-low: %d\n", res);
+
+	if (ar7_has_high_vlynq()) {
+		ar7_device_disable(vlynq_high_data.reset_bit);
+		res = platform_device_register(&vlynq_high);
+		if (res)
+			pr_warn("unable to register vlynq-high: %d\n", res);
+	}
+
+	if (ar7_has_high_cpmac()) {
+		res = fixed_phy_add(PHY_POLL, cpmac_high.id,
+				    &fixed_phy_status);
+		if (!res) {
+			cpmac_get_mac(1, cpmac_high_data.dev_addr);
+
+			res = platform_device_register(&cpmac_high);
+			if (res)
+				pr_warn("unable to register cpmac-high: %d\n",
+					res);
+		} else
+			pr_warn("unable to add cpmac-high phy: %d\n", res);
+	} else
+		cpmac_low_data.phy_mask = 0xffffffff;
+
+	res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
+	if (!res) {
+		cpmac_get_mac(0, cpmac_low_data.dev_addr);
+		res = platform_device_register(&cpmac_low);
+		if (res)
+			pr_warn("unable to register cpmac-low: %d\n", res);
+	} else
+		pr_warn("unable to add cpmac-low phy: %d\n", res);
+
+	detect_leds();
+	res = platform_device_register(&ar7_gpio_leds);
+	if (res)
+		pr_warn("unable to register leds: %d\n", res);
+
+	res = platform_device_register(&ar7_udc);
+	if (res)
+		pr_warn("unable to register usb slave: %d\n", res);
+
+	/* Register watchdog only if enabled in hardware */
+	bootcr = ioremap(AR7_REGS_DCL, 4);
+	val = readl(bootcr);
+	iounmap(bootcr);
+	if (val & AR7_WDT_HW_ENA) {
+		if (ar7_has_high_vlynq())
+			ar7_wdt_res.start = UR8_REGS_WDT;
+		else
+			ar7_wdt_res.start = AR7_REGS_WDT;
+
+		ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
+		res = platform_device_register(&ar7_wdt);
+		if (res)
+			pr_warn("unable to register watchdog: %d\n", res);
+	}
+
+	return 0;
+}
+device_initcall(ar7_register_devices);