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authorSascha Hauer <s.hauer@pengutronix.de>2017-02-13 09:26:04 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-02-13 09:26:04 +0100
commit30139163b75970fcd58df6b6b987883e36571046 (patch)
tree00bd354cefa617f8474cc73994b1a72c11e770a0 /arch/arm/boards/zii-vf610-dev/board.c
parentbb1a6a2fd3cc41be6db1a1362f311456019317b1 (diff)
parent19df384cec181be4407f82377ffbb3059b1ed748 (diff)
downloadbarebox-30139163b75970fcd58df6b6b987883e36571046.tar.gz
Merge branch 'for-next/imx'
Diffstat (limited to 'arch/arm/boards/zii-vf610-dev/board.c')
-rw-r--r--arch/arm/boards/zii-vf610-dev/board.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/arch/arm/boards/zii-vf610-dev/board.c b/arch/arm/boards/zii-vf610-dev/board.c
new file mode 100644
index 0000000..eea3828
--- /dev/null
+++ b/arch/arm/boards/zii-vf610-dev/board.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 Zodiac Inflight Innovation
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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 <common.h>
+#include <init.h>
+#include <gpio.h>
+#include <environment.h>
+#include <linux/clk.h>
+#include <dt-bindings/clock/vf610-clock.h>
+#include <envfs.h>
+
+
+static int expose_signals(const struct gpio *signals,
+ size_t signal_num)
+{
+ int ret, i;
+
+ ret = gpio_request_array(signals, signal_num);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < signal_num; i++)
+ export_env_ull(signals[i].label, signals[i].gpio);
+
+ return 0;
+}
+
+static int zii_vf610_cfu1_expose_signals(void)
+{
+ static const struct gpio signals[] = {
+ {
+ .gpio = 132,
+ .flags = GPIOF_IN,
+ .label = "fim_sd",
+ },
+ {
+ .gpio = 118,
+ .flags = GPIOF_OUT_INIT_LOW,
+ .label = "fim_tdis",
+ },
+ };
+
+ if (!of_machine_is_compatible("zii,vf610cfu1-a"))
+ return 0;
+
+ return expose_signals(signals, ARRAY_SIZE(signals));
+}
+late_initcall(zii_vf610_cfu1_expose_signals);
+
+static int zii_vf610_cfu1_spu3_expose_signals(void)
+{
+ static const struct gpio signals[] = {
+ {
+ .gpio = 107,
+ .flags = GPIOF_OUT_INIT_LOW,
+ .label = "soc_sw_rstn",
+ },
+ {
+ .gpio = 98,
+ .flags = GPIOF_IN,
+ .label = "e6352_intn",
+ },
+ };
+
+ if (!of_machine_is_compatible("zii,vf610spu3-a") &&
+ !of_machine_is_compatible("zii,vf610cfu1-a"))
+ return 0;
+
+ return expose_signals(signals, ARRAY_SIZE(signals));
+}
+late_initcall(zii_vf610_cfu1_spu3_expose_signals);
+
+static int zii_vf610_dev_print_clocks(void)
+{
+ int i;
+ struct clk *clk;
+ struct device_node *ccm_np;
+ const unsigned long MHz = 1000000;
+ const char *clk_names[] = { "cpu", "ddr", "bus", "ipg" };
+
+ if (!of_machine_is_compatible("zii,vf610dev"))
+ return 0;
+
+ ccm_np = of_find_compatible_node(NULL, NULL, "fsl,vf610-ccm");
+ if (!ccm_np) {
+ pr_err("Couln't get CCM node\n");
+ return -ENOENT;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(clk_names); i++) {
+ unsigned long rate;
+ const char *name = clk_names[i];
+
+ clk = of_clk_get_by_name(ccm_np, name);
+ if (IS_ERR(clk)) {
+ pr_err("Failed to get '%s' clock (%ld)\n",
+ name, PTR_ERR(clk));
+ return PTR_ERR(clk);
+ }
+
+ rate = clk_get_rate(clk);
+
+ pr_info("%s clock : %8lu MHz\n", name, rate / MHz);
+ }
+
+ return 0;
+}
+late_initcall(zii_vf610_dev_print_clocks);
+
+static int zii_vf610_dev_set_hostname(void)
+{
+ size_t i;
+ static const struct {
+ const char *compatible;
+ const char *hostname;
+ } boards[] = {
+ { "zii,vf610spu3-a", "spu3-rev-a" },
+ { "zii,vf610cfu1-a", "cfu1-rev-a" },
+ { "zii,vf610dev-b", "dev-rev-b" },
+ { "zii,vf610dev-c", "dev-rev-c" },
+ { "zii,vf610scu4-aib-c", "scu4-aib-rev-c" },
+ };
+
+ if (!of_machine_is_compatible("zii,vf610dev"))
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(boards); i++) {
+ if (of_machine_is_compatible(boards[i].compatible)) {
+ barebox_set_hostname(boards[i].hostname);
+ break;
+ }
+ }
+
+ defaultenv_append_directory(defaultenv_zii_vf610_dev);
+ return 0;
+}
+late_initcall(zii_vf610_dev_set_hostname);