Merge branch 'master' of git://git.denx.de/u-boot-atmel

1 files changed, 60 insertions, 0 deletions

diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c
new file mode 100644
index 0000000..16688e9
--- /dev/null
+++ b/drivers/clk/at91/clk-peripheral.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 Atmel Corporation
+ *               Wenyou.Yang <wenyou.yang@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm/device.h>
+#include <linux/io.h>
+#include <mach/at91_pmc.h>
+#include "pmc.h"
+
+#define PERIPHERAL_ID_MIN	2
+#define PERIPHERAL_ID_MAX	31
+#define PERIPHERAL_MASK(id)	(1 << ((id) & PERIPHERAL_ID_MAX))
+
+static int sam9x5_periph_clk_enable(struct clk *clk)
+{
+	struct pmc_platdata *plat = dev_get_platdata(clk->dev);
+	struct at91_pmc *pmc = plat->reg_base;
+
+	if (clk->id < PERIPHERAL_ID_MIN)
+		return -1;
+
+	writel(clk->id & AT91_PMC_PCR_PID_MASK, &pmc->pcr);
+	setbits_le32(&pmc->pcr, AT91_PMC_PCR_CMD_WRITE | AT91_PMC_PCR_EN);
+
+	return 0;
+}
+
+static struct clk_ops sam9x5_periph_clk_ops = {
+	.enable = sam9x5_periph_clk_enable,
+};
+
+static int sam9x5_periph_clk_bind(struct udevice *dev)
+{
+	return at91_pmc_clk_node_bind(dev);
+}
+
+static int sam9x5_periph_clk_probe(struct udevice *dev)
+{
+	return at91_pmc_core_probe(dev);
+}
+
+static const struct udevice_id sam9x5_periph_clk_match[] = {
+	{ .compatible = "atmel,at91sam9x5-clk-peripheral" },
+	{}
+};
+
+U_BOOT_DRIVER(sam9x5_periph_clk) = {
+	.name = "sam9x5-periph-clk",
+	.id = UCLASS_CLK,
+	.of_match = sam9x5_periph_clk_match,
+	.bind = sam9x5_periph_clk_bind,
+	.probe = sam9x5_periph_clk_probe,
+	.platdata_auto_alloc_size = sizeof(struct pmc_platdata),
+	.ops = &sam9x5_periph_clk_ops,
+};