samsung update 1

1 files changed, 250 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/board-midas-modems.c b/arch/arm/mach-exynos/board-midas-modems.c
new file mode 100644
index 0000000..635fbbd
--- /dev/null
+++ b/arch/arm/mach-exynos/board-midas-modems.c
@@ -0,0 +1,250 @@
+/* linux/arch/arm/mach-xxxx/board-midas-modems.c
+ * Copyright (C) 2010 Samsung Electronics. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include <linux/platform_data/modem.h>
+
+/* umts target platform data */
+static struct modem_io_t umts_io_devices[] = {
+	[0] = {
+		.name = "umts_boot0",
+		.id = 0x0,
+		.format = IPC_BOOT,
+		.io_type = IODEV_MISC,
+		.links = LINKTYPE(LINKDEV_C2C),
+	},
+	[1] = {
+		.name = "umts_ipc0",
+		.id = 0x1,
+		.format = IPC_FMT,
+		.io_type = IODEV_MISC,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[2] = {
+		.name = "umts_rfs0",
+		.id = 0x41,
+		.format = IPC_RFS,
+		.io_type = IODEV_MISC,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[3] = {
+		.name = "multipdp",
+		.id = 0x1,
+		.format = IPC_MULTI_RAW,
+		.io_type = IODEV_DUMMY,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[4] = {
+		.name = "rmnet0",
+		.id = 0x2A,
+		.format = IPC_RAW,
+		.io_type = IODEV_NET,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[5] = {
+		.name = "rmnet1",
+		.id = 0x2B,
+		.format = IPC_RAW,
+		.io_type = IODEV_NET,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[6] = {
+		.name = "rmnet2",
+		.id = 0x2C,
+		.format = IPC_RAW,
+		.io_type = IODEV_NET,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[7] = {
+		.name = "umts_router",
+		.id = 0x39,
+		.format = IPC_RAW,
+		.io_type = IODEV_MISC,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+	[8] = {
+		.name = "umts_csd",
+		.id = 0x21,
+		.format = IPC_RAW,
+		.io_type = IODEV_MISC,
+		.links = LINKTYPE(LINKDEV_HSIC),
+	},
+};
+
+/* To get modem state, register phone active irq using resource */
+static struct resource umts_modem_res[] = {
+	[0] = {
+		.name = "umts_phone_active",
+		.start = PHONE_ACTIVE_IRQ,
+		.end = PHONE_ACTIVE_IRQ,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static int umts_link_ldo_enble(bool enable)
+{
+	/* Exynos HSIC V1.2 LDO was controlled by kernel */
+	return 0;
+}
+
+static struct modemlink_pm_data modem_link_pm_data = {
+	.name = "link_pm",
+	.link_ldo_enable = umts_link_ldo_enble,
+	.gpio_link_enable = 0,
+	.gpio_link_active = GPIO_ACTIVE_STATE,
+	.gpio_link_hostwake = GPIO_IPC_HOST_WAKEUP,
+	.gpio_link_slavewake = GPIO_IPC_SLAVE_WAKEUP,
+};
+static struct modemlink_pm_link_activectl active_ctl;
+
+static struct modem_data umts_modem_data = {
+	.name = "xmm6262",
+
+	.gpio_cp_on = CP_ON,
+	.gpio_reset_req_n = CP_RESET_REQ_N,
+	.gpio_cp_reset = CP_PMU_RST_N,
+	.gpio_pda_active = PDA_ACTIVE,
+	.gpio_phone_active = PHONE_ACTIVE,
+	.gpio_cp_dump_int = CP_DUMP_INT,
+	.gpio_flm_uart_sel = 0,
+	.gpio_cp_warm_reset = 0,
+
+	.modem_type = IMC_XMM6262,
+	.link_types = LINKTYPE(LINKDEV_HSIC) | LINKTYPE(LINKDEV_C2C),
+	.modem_net = UMTS_NETWORK,
+	.use_handover = false,
+
+	.num_iodevs = ARRAY_SIZE(umts_io_devices),
+	.iodevs = umts_io_devices,
+
+	.link_pm_data = &modem_link_pm_data,
+};
+
+/* HSIC specific function */
+void set_host_states(struct platform_device *pdev, int type)
+{
+	if (active_ctl.gpio_initialized) {
+		pr_err(" [MODEM_IF] Active States =%d, %s\n", type, pdev->name);
+		gpio_direction_output(modem_link_pm_data.gpio_link_active,
+			type);
+	} else
+		active_ctl.gpio_request_host_active = 1;
+}
+
+static struct platform_device umts_modem = {
+	.name = "modem_if",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(umts_modem_res),
+	.resource = umts_modem_res,
+	.dev = {
+		.platform_data = &umts_modem_data,
+	},
+};
+
+struct io_list {
+	unsigned num;
+	char *name;
+	unsigned val;
+};
+
+static void umts_modem_cfg_gpio(void)
+{
+	unsigned gpio_reset_req_n = umts_modem_data.gpio_reset_req_n;
+	unsigned gpio_cp_on = umts_modem_data.gpio_cp_on;
+	unsigned gpio_cp_rst = umts_modem_data.gpio_cp_reset;
+	unsigned gpio_pda_active = umts_modem_data.gpio_pda_active;
+	unsigned gpio_phone_active = umts_modem_data.gpio_phone_active;
+
+	if (gpio_reset_req_n) {
+		gpio_request(gpio_reset_req_n, "CP_RST_REQ");
+		gpio_direction_output(gpio_reset_req_n, 0);
+	}
+
+	if (gpio_cp_on) {
+		gpio_request(gpio_cp_on, "CP_ON");
+		gpio_direction_output(gpio_cp_on, 0);
+	}
+
+	if (gpio_cp_rst) {
+		gpio_request(gpio_cp_rst, "CP_RST");
+		gpio_direction_output(gpio_cp_rst, 0);
+	}
+
+	if (gpio_pda_active) {
+		gpio_request(gpio_pda_active, "PDA_ACTIVE");
+		gpio_direction_output(gpio_pda_active, 0);
+	}
+
+	if (gpio_phone_active) {
+		gpio_request(gpio_phone_active, "PHONE_ACTIVE");
+		gpio_direction_input(gpio_phone_active);
+	}
+}
+
+static void modem_link_pm_config_gpio(void)
+{
+	int i, err;
+	unsigned gpio_num;
+	struct io_list gpio_list[] = {
+		{modem_link_pm_data.gpio_link_enable, "hsic_en", 1},
+		{modem_link_pm_data.gpio_link_active, "host_active", 0},
+		{modem_link_pm_data.gpio_link_hostwake, "host_wakeup", 0},
+		{modem_link_pm_data.gpio_link_slavewake, "slave_wakeup", 0},
+	};
+	unsigned gpio_link_hostwake = modem_link_pm_data.gpio_link_hostwake;
+
+	for (i = 0; i < ARRAY_SIZE(gpio_list); i++) {
+		gpio_num = gpio_list[i].num;
+		if (gpio_num) {
+			err = gpio_request(gpio_num, gpio_list[i].name);
+			if (err) {
+				pr_err("request gpio fail %s: %d\n",
+				gpio_list[i].name, err);
+				continue;
+			}
+			gpio_direction_output(gpio_num, gpio_list[i].val);
+			pr_debug("%s gpio cfg done\n", gpio_list[i].name);
+		}
+	}
+
+	if (gpio_link_hostwake)
+		irq_set_irq_type(gpio_to_irq(gpio_link_hostwake),
+			IRQ_TYPE_EDGE_BOTH);
+
+	active_ctl.gpio_initialized = 1;
+	if (active_ctl.gpio_request_host_active) {
+		pr_err(" [MODEM_IF] Active States = 1, %s\n", __func__);
+		gpio_direction_output(modem_link_pm_data.gpio_link_active, 1);
+	}
+
+	printk(KERN_INFO "modem_link_pm_config_gpio done\n");
+}
+
+static int __init init_modem(void)
+{
+	pr_debug("[BOARD] <%s> Invoked!!!\n", __func__);
+
+	umts_modem_cfg_gpio();
+	modem_link_pm_config_gpio();
+	platform_device_register(&umts_modem);
+
+	return 0;
+}
+late_initcall(init_modem);