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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-omap2/board-rx51.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-omap2/board-rx51.c')
-rw-r--r--kernel/arch/arm/mach-omap2/board-rx51.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap2/board-rx51.c b/kernel/arch/arm/mach-omap2/board-rx51.c
new file mode 100644
index 000000000..2d1e5a6be
--- /dev/null
+++ b/kernel/arch/arm/mach-omap2/board-rx51.c
@@ -0,0 +1,141 @@
+/*
+ * Board support file for Nokia N900 (aka RX-51).
+ *
+ * Copyright (C) 2007, 2008 Nokia
+ * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/musb.h>
+#include <linux/platform_data/spi-omap2-mcspi.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <linux/omap-dma.h>
+
+#include "common.h"
+#include "mux.h"
+#include "gpmc.h"
+#include "pm.h"
+#include "soc.h"
+#include "sdram-nokia.h"
+#include "omap-secure.h"
+
+#define RX51_GPIO_SLEEP_IND 162
+
+static struct gpio_led gpio_leds[] = {
+ {
+ .name = "sleep_ind",
+ .gpio = RX51_GPIO_SLEEP_IND,
+ },
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+ .leds = gpio_leds,
+ .num_leds = ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpio_led_info,
+ },
+};
+
+/*
+ * cpuidle C-states definition for rx51.
+ *
+ * The 'exit_latency' field is the sum of sleep
+ * and wake-up latencies.
+
+ ---------------------------------------------
+ | state | exit_latency | target_residency |
+ ---------------------------------------------
+ | C1 | 110 + 162 | 5 |
+ | C2 | 106 + 180 | 309 |
+ | C3 | 107 + 410 | 46057 |
+ | C4 | 121 + 3374 | 46057 |
+ | C5 | 855 + 1146 | 46057 |
+ | C6 | 7580 + 4134 | 484329 |
+ | C7 | 7505 + 15274 | 484329 |
+ ---------------------------------------------
+
+*/
+
+extern void __init rx51_peripherals_init(void);
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+ { .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#endif
+
+static struct omap_musb_board_data musb_board_data = {
+ .interface_type = MUSB_INTERFACE_ULPI,
+ .mode = MUSB_OTG,
+ .power = 0,
+};
+
+static void __init rx51_init(void)
+{
+ struct omap_sdrc_params *sdrc_params;
+
+ omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+ omap_serial_init();
+
+ sdrc_params = nokia_get_sdram_timings();
+ omap_sdrc_init(sdrc_params, sdrc_params);
+
+ usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
+ usb_musb_init(&musb_board_data);
+ rx51_peripherals_init();
+
+ if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
+#ifdef CONFIG_ARM_ERRATA_430973
+ pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
+ /* set IBE to 1 */
+ rx51_secure_update_aux_cr(BIT(6), 0);
+#endif
+ }
+
+ /* Ensure SDRC pins are mux'd for self-refresh */
+ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+
+ platform_device_register(&leds_gpio);
+}
+
+static void __init rx51_reserve(void)
+{
+ omap_reserve();
+}
+
+MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
+ /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
+ .atag_offset = 0x100,
+ .reserve = rx51_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3430_init_early,
+ .init_irq = omap3_init_irq,
+ .init_machine = rx51_init,
+ .init_late = omap3430_init_late,
+ .init_time = omap3_sync32k_timer_init,
+ .restart = omap3xxx_restart,
+MACHINE_END