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authorArnd Bergmann <arnd@arndb.de>2013-04-09 15:27:52 +0200
committerArnd Bergmann <arnd@arndb.de>2013-04-09 15:27:52 +0200
commit8024206dbf4e0701f0cdf259a122ea23db3a7a16 (patch)
tree11d2f30d0c9209036613ec8f78d682ae31c89315 /arch/arm/mach-tegra/tegra.c
parent5be8f6368800d9e3e570373d2aaff8a48be36574 (diff)
parent6affb4826405dc1f53bae0e5c302a18f734a44ca (diff)
Merge tag 'tegra-for-3.10-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren <swarren@wwwdotorg.org>: ARM: tegra: cleanup This branch includes various cleanup of the core Tegra support. * Unification of the separate board-dt-tegra*.c files into a single tegra.c, now that everything is DT-driven and basically identical. * Use of_clk_get() in the Tegra clocksource driver so that clocks are described in DT rather than hard-coding clock names. * Some cleanup of the PMC-related code, with the aim that the PMC "driver" contains more of the code that touches PMC registers, rather than spreading PMC register accesses through other files. * Conversion of the "PMC" driver to acquire resources describe in device tree rather than hard-coding them. * Use of common code for the CPU sleep TLB invalidation. This branch is based on the previous fixes pull request. * tag 'tegra-for-3.10-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: use setup_mm_for_reboot rather than explicit pgd switch ARM: tegra: replace the CPU power on function with PMC call ARM: tegra: pmc: add power on function for secondary CPUs ARM: tegra: pmc: convert PMC driver to support DT only ARM: tegra: fix the PMC compatible string in DT ARM: tegra: pmc: add specific compatible DT string for Tegra30 and Tegra114 ARM: tegra: refactor tegra{20,30}_boot_secondary clocksource: tegra: move to of_clk_get ARM: tegra: Unify Device tree board files ARM: tegra: Rename board-dt-tegra20.c to tegra.c ARM: tegra: Unify tegra{20,30,114}_init_early() Conflicts: drivers/clocksource/tegra20_timer.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-tegra/tegra.c')
-rw-r--r--arch/arm/mach-tegra/tegra.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
new file mode 100644
index 000000000000..27232c901a22
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra.c
@@ -0,0 +1,159 @@
+/*
+ * NVIDIA Tegra SoC device tree board support
+ *
+ * Copyright (C) 2011, 2013, NVIDIA Corporation
+ * Copyright (C) 2010 Secret Lab Technologies, Ltd.
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * 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/clocksource.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+#include <linux/pda_power.h>
+#include <linux/platform_data/tegra_usb.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/i2c-tegra.h>
+#include <linux/usb/tegra_usb_phy.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/setup.h>
+
+#include "board.h"
+#include "common.h"
+#include "iomap.h"
+
+static struct tegra_ehci_platform_data tegra_ehci1_pdata = {
+ .operating_mode = TEGRA_USB_OTG,
+ .power_down_on_bus_suspend = 1,
+ .vbus_gpio = -1,
+};
+
+static struct tegra_ulpi_config tegra_ehci2_ulpi_phy_config = {
+ .reset_gpio = -1,
+ .clk = "cdev2",
+};
+
+static struct tegra_ehci_platform_data tegra_ehci2_pdata = {
+ .phy_config = &tegra_ehci2_ulpi_phy_config,
+ .operating_mode = TEGRA_USB_HOST,
+ .power_down_on_bus_suspend = 1,
+ .vbus_gpio = -1,
+};
+
+static struct tegra_ehci_platform_data tegra_ehci3_pdata = {
+ .operating_mode = TEGRA_USB_HOST,
+ .power_down_on_bus_suspend = 1,
+ .vbus_gpio = -1,
+};
+
+static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5000000, "tegra-ehci.0",
+ &tegra_ehci1_pdata),
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5004000, "tegra-ehci.1",
+ &tegra_ehci2_pdata),
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", 0xC5008000, "tegra-ehci.2",
+ &tegra_ehci3_pdata),
+ {}
+};
+
+static void __init tegra_dt_init(void)
+{
+ /*
+ * Finished with the static registrations now; fill in the missing
+ * devices
+ */
+ of_platform_populate(NULL, of_default_bus_match_table,
+ tegra20_auxdata_lookup, NULL);
+}
+
+static void __init trimslice_init(void)
+{
+#ifdef CONFIG_TEGRA_PCI
+ int ret;
+
+ ret = tegra_pcie_init(true, true);
+ if (ret)
+ pr_err("tegra_pci_init() failed: %d\n", ret);
+#endif
+}
+
+static void __init harmony_init(void)
+{
+#ifdef CONFIG_TEGRA_PCI
+ int ret;
+
+ ret = harmony_pcie_init();
+ if (ret)
+ pr_err("harmony_pcie_init() failed: %d\n", ret);
+#endif
+}
+
+static void __init paz00_init(void)
+{
+ if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
+ tegra_paz00_wifikill_init();
+}
+
+static struct {
+ char *machine;
+ void (*init)(void);
+} board_init_funcs[] = {
+ { "compulab,trimslice", trimslice_init },
+ { "nvidia,harmony", harmony_init },
+ { "compal,paz00", paz00_init },
+};
+
+static void __init tegra_dt_init_late(void)
+{
+ int i;
+
+ tegra_init_late();
+
+ for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
+ if (of_machine_is_compatible(board_init_funcs[i].machine)) {
+ board_init_funcs[i].init();
+ break;
+ }
+ }
+}
+
+static const char * const tegra_dt_board_compat[] = {
+ "nvidia,tegra114",
+ "nvidia,tegra30",
+ "nvidia,tegra20",
+ NULL
+};
+
+DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
+ .map_io = tegra_map_common_io,
+ .smp = smp_ops(tegra_smp_ops),
+ .init_early = tegra_init_early,
+ .init_irq = tegra_dt_init_irq,
+ .init_time = clocksource_of_init,
+ .init_machine = tegra_dt_init,
+ .init_late = tegra_dt_init_late,
+ .restart = tegra_assert_system_reset,
+ .dt_compat = tegra_dt_board_compat,
+MACHINE_END