Initial file dump from open source releaseHEADmaster

1 files changed, 89 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
new file mode 100644
index 00000000..035b240b
--- /dev/null
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -0,0 +1,89 @@
+/*
+ * arch/arm/mach-tegra/board-harmony-pcie.c
+ *
+ * Copyright (C) 2010 CompuLab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * 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/gpio.h>
+#include <linux/err.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+
+#include <asm/mach-types.h>
+
+#include "board.h"
+
+#ifdef CONFIG_TEGRA_PCI
+
+int __init harmony_pcie_init(void)
+{
+	struct device_node *np;
+	int en_vdd_1v05;
+	struct regulator *regulator = NULL;
+	int err;
+
+	np = of_find_node_by_path("/regulators/regulator@3");
+	if (!np) {
+		pr_err("%s: of_find_node_by_path failed\n", __func__);
+		return -ENODEV;
+	}
+
+	en_vdd_1v05 = of_get_named_gpio(np, "gpio", 0);
+	if (en_vdd_1v05 < 0) {
+		pr_err("%s: of_get_named_gpio failed: %d\n", __func__,
+		       en_vdd_1v05);
+		return en_vdd_1v05;
+	}
+
+	err = gpio_request(en_vdd_1v05, "EN_VDD_1V05");
+	if (err) {
+		pr_err("%s: gpio_request failed: %d\n", __func__, err);
+		return err;
+	}
+
+	gpio_direction_output(en_vdd_1v05, 1);
+
+	regulator = regulator_get(NULL, "vdd_ldo0,vddio_pex_clk");
+	if (IS_ERR(regulator)) {
+		err = PTR_ERR(regulator);
+		pr_err("%s: regulator_get failed: %d\n", __func__, err);
+		goto err_reg;
+	}
+
+	err = regulator_enable(regulator);
+	if (err) {
+		pr_err("%s: regulator_enable failed: %d\n", __func__, err);
+		goto err_en;
+	}
+
+	err = tegra_pcie_init(true, true);
+	if (err) {
+		pr_err("%s: tegra_pcie_init failed: %d\n", __func__, err);
+		goto err_pcie;
+	}
+
+	return 0;
+
+err_pcie:
+	regulator_disable(regulator);
+err_en:
+	regulator_put(regulator);
+err_reg:
+	gpio_free(en_vdd_1v05);
+
+	return err;
+}
+
+#endif