Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...

3 files changed, 771 insertions, 0 deletions

diff --git a/drivers/clk/zynq/Makefile b/drivers/clk/zynq/Makefile
new file mode 100644
index 000000000000..156d923f4fa9
--- /dev/null
+++ b/drivers/clk/zynq/Makefile
@@ -0,0 +1,3 @@
+# Zynq clock specific Makefile
+
+obj-$(CONFIG_ARCH_ZYNQ)	+= clkc.o pll.o
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
new file mode 100644
index 000000000000..5c205b60a82a
--- /dev/null
+++ b/drivers/clk/zynq/clkc.c
@@ -0,0 +1,533 @@
+/*
+ * Zynq clock controller
+ *
+ *  Copyright (C) 2012 - 2013 Xilinx
+ *
+ *  Sören Brinkmann <soren.brinkmann@xilinx.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/clk/zynq.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/io.h>
+
+static void __iomem *zynq_slcr_base_priv;
+
+#define SLCR_ARMPLL_CTRL		(zynq_slcr_base_priv + 0x100)
+#define SLCR_DDRPLL_CTRL		(zynq_slcr_base_priv + 0x104)
+#define SLCR_IOPLL_CTRL			(zynq_slcr_base_priv + 0x108)
+#define SLCR_PLL_STATUS			(zynq_slcr_base_priv + 0x10c)
+#define SLCR_ARM_CLK_CTRL		(zynq_slcr_base_priv + 0x120)
+#define SLCR_DDR_CLK_CTRL		(zynq_slcr_base_priv + 0x124)
+#define SLCR_DCI_CLK_CTRL		(zynq_slcr_base_priv + 0x128)
+#define SLCR_APER_CLK_CTRL		(zynq_slcr_base_priv + 0x12c)
+#define SLCR_GEM0_CLK_CTRL		(zynq_slcr_base_priv + 0x140)
+#define SLCR_GEM1_CLK_CTRL		(zynq_slcr_base_priv + 0x144)
+#define SLCR_SMC_CLK_CTRL		(zynq_slcr_base_priv + 0x148)
+#define SLCR_LQSPI_CLK_CTRL		(zynq_slcr_base_priv + 0x14c)
+#define SLCR_SDIO_CLK_CTRL		(zynq_slcr_base_priv + 0x150)
+#define SLCR_UART_CLK_CTRL		(zynq_slcr_base_priv + 0x154)
+#define SLCR_SPI_CLK_CTRL		(zynq_slcr_base_priv + 0x158)
+#define SLCR_CAN_CLK_CTRL		(zynq_slcr_base_priv + 0x15c)
+#define SLCR_CAN_MIOCLK_CTRL		(zynq_slcr_base_priv + 0x160)
+#define SLCR_DBG_CLK_CTRL		(zynq_slcr_base_priv + 0x164)
+#define SLCR_PCAP_CLK_CTRL		(zynq_slcr_base_priv + 0x168)
+#define SLCR_FPGA0_CLK_CTRL		(zynq_slcr_base_priv + 0x170)
+#define SLCR_621_TRUE			(zynq_slcr_base_priv + 0x1c4)
+#define SLCR_SWDT_CLK_SEL		(zynq_slcr_base_priv + 0x304)
+
+#define NUM_MIO_PINS	54
+
+enum zynq_clk {
+	armpll, ddrpll, iopll,
+	cpu_6or4x, cpu_3or2x, cpu_2x, cpu_1x,
+	ddr2x, ddr3x, dci,
+	lqspi, smc, pcap, gem0, gem1, fclk0, fclk1, fclk2, fclk3, can0, can1,
+	sdio0, sdio1, uart0, uart1, spi0, spi1, dma,
+	usb0_aper, usb1_aper, gem0_aper, gem1_aper,
+	sdio0_aper, sdio1_aper, spi0_aper, spi1_aper, can0_aper, can1_aper,
+	i2c0_aper, i2c1_aper, uart0_aper, uart1_aper, gpio_aper, lqspi_aper,
+	smc_aper, swdt, dbg_trc, dbg_apb, clk_max};
+
+static struct clk *ps_clk;
+static struct clk *clks[clk_max];
+static struct clk_onecell_data clk_data;
+
+static DEFINE_SPINLOCK(armpll_lock);
+static DEFINE_SPINLOCK(ddrpll_lock);
+static DEFINE_SPINLOCK(iopll_lock);
+static DEFINE_SPINLOCK(armclk_lock);
+static DEFINE_SPINLOCK(ddrclk_lock);
+static DEFINE_SPINLOCK(dciclk_lock);
+static DEFINE_SPINLOCK(gem0clk_lock);
+static DEFINE_SPINLOCK(gem1clk_lock);
+static DEFINE_SPINLOCK(canclk_lock);
+static DEFINE_SPINLOCK(canmioclk_lock);
+static DEFINE_SPINLOCK(dbgclk_lock);
+static DEFINE_SPINLOCK(aperclk_lock);
+
+static const char dummy_nm[] __initconst = "dummy_name";
+
+static const char *armpll_parents[] __initdata = {"armpll_int", "ps_clk"};
+static const char *ddrpll_parents[] __initdata = {"ddrpll_int", "ps_clk"};
+static const char *iopll_parents[] __initdata = {"iopll_int", "ps_clk"};
+static const char *gem0_mux_parents[] __initdata = {"gem0_div1", dummy_nm};
+static const char *gem1_mux_parents[] __initdata = {"gem1_div1", dummy_nm};
+static const char *can0_mio_mux2_parents[] __initdata = {"can0_gate",
+	"can0_mio_mux"};
+static const char *can1_mio_mux2_parents[] __initdata = {"can1_gate",
+	"can1_mio_mux"};
+static const char *dbg_emio_mux_parents[] __initdata = {"dbg_div",
+	dummy_nm};
+
+static const char *dbgtrc_emio_input_names[] __initdata = {"trace_emio_clk"};
+static const char *gem0_emio_input_names[] __initdata = {"gem0_emio_clk"};
+static const char *gem1_emio_input_names[] __initdata = {"gem1_emio_clk"};
+static const char *swdt_ext_clk_input_names[] __initdata = {"swdt_ext_clk"};
+
+static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
+		const char *clk_name, void __iomem *fclk_ctrl_reg,
+		const char **parents)
+{
+	struct clk *clk;
+	char *mux_name;
+	char *div0_name;
+	char *div1_name;
+	spinlock_t *fclk_lock;
+	spinlock_t *fclk_gate_lock;
+	void __iomem *fclk_gate_reg = fclk_ctrl_reg + 8;
+
+	fclk_lock = kmalloc(sizeof(*fclk_lock), GFP_KERNEL);
+	if (!fclk_lock)
+		goto err;
+	fclk_gate_lock = kmalloc(sizeof(*fclk_gate_lock), GFP_KERNEL);
+	if (!fclk_gate_lock)
+		goto err;
+	spin_lock_init(fclk_lock);
+	spin_lock_init(fclk_gate_lock);
+
+	mux_name = kasprintf(GFP_KERNEL, "%s_mux", clk_name);
+	div0_name = kasprintf(GFP_KERNEL, "%s_div0", clk_name);
+	div1_name = kasprintf(GFP_KERNEL, "%s_div1", clk_name);
+
+	clk = clk_register_mux(NULL, mux_name, parents, 4, 0,
+			fclk_ctrl_reg, 4, 2, 0, fclk_lock);
+
+	clk = clk_register_divider(NULL, div0_name, mux_name,
+			0, fclk_ctrl_reg, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, fclk_lock);
+
+	clk = clk_register_divider(NULL, div1_name, div0_name,
+			CLK_SET_RATE_PARENT, fclk_ctrl_reg, 20, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+			fclk_lock);
+
+	clks[fclk] = clk_register_gate(NULL, clk_name,
+			div1_name, CLK_SET_RATE_PARENT, fclk_gate_reg,
+			0, CLK_GATE_SET_TO_DISABLE, fclk_gate_lock);
+	kfree(mux_name);
+	kfree(div0_name);
+	kfree(div1_name);
+
+	return;
+
+err:
+	clks[fclk] = ERR_PTR(-ENOMEM);
+}
+
+static void __init zynq_clk_register_periph_clk(enum zynq_clk clk0,
+		enum zynq_clk clk1, const char *clk_name0,
+		const char *clk_name1, void __iomem *clk_ctrl,
+		const char **parents, unsigned int two_gates)
+{
+	struct clk *clk;
+	char *mux_name;
+	char *div_name;
+	spinlock_t *lock;
+
+	lock = kmalloc(sizeof(*lock), GFP_KERNEL);
+	if (!lock)
+		goto err;
+	spin_lock_init(lock);
+
+	mux_name = kasprintf(GFP_KERNEL, "%s_mux", clk_name0);
+	div_name = kasprintf(GFP_KERNEL, "%s_div", clk_name0);
+
+	clk = clk_register_mux(NULL, mux_name, parents, 4, 0,
+			clk_ctrl, 4, 2, 0, lock);
+
+	clk = clk_register_divider(NULL, div_name, mux_name, 0, clk_ctrl, 8, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, lock);
+
+	clks[clk0] = clk_register_gate(NULL, clk_name0, div_name,
+			CLK_SET_RATE_PARENT, clk_ctrl, 0, 0, lock);
+	if (two_gates)
+		clks[clk1] = clk_register_gate(NULL, clk_name1, div_name,
+				CLK_SET_RATE_PARENT, clk_ctrl, 1, 0, lock);
+
+	kfree(mux_name);
+	kfree(div_name);
+
+	return;
+
+err:
+	clks[clk0] = ERR_PTR(-ENOMEM);
+	if (two_gates)
+		clks[clk1] = ERR_PTR(-ENOMEM);
+}
+
+static void __init zynq_clk_setup(struct device_node *np)
+{
+	int i;
+	u32 tmp;
+	int ret;
+	struct clk *clk;
+	char *clk_name;
+	const char *clk_output_name[clk_max];
+	const char *cpu_parents[4];
+	const char *periph_parents[4];
+	const char *swdt_ext_clk_mux_parents[2];
+	const char *can_mio_mux_parents[NUM_MIO_PINS];
+
+	pr_info("Zynq clock init\n");
+
+	/* get clock output names from DT */
+	for (i = 0; i < clk_max; i++) {
+		if (of_property_read_string_index(np, "clock-output-names",
+				  i, &clk_output_name[i])) {
+			pr_err("%s: clock output name not in DT\n", __func__);
+			BUG();
+		}
+	}
+	cpu_parents[0] = clk_output_name[armpll];
+	cpu_parents[1] = clk_output_name[armpll];
+	cpu_parents[2] = clk_output_name[ddrpll];
+	cpu_parents[3] = clk_output_name[iopll];
+	periph_parents[0] = clk_output_name[iopll];
+	periph_parents[1] = clk_output_name[iopll];
+	periph_parents[2] = clk_output_name[armpll];
+	periph_parents[3] = clk_output_name[ddrpll];
+
+	/* ps_clk */
+	ret = of_property_read_u32(np, "ps-clk-frequency", &tmp);
+	if (ret) {
+		pr_warn("ps_clk frequency not specified, using 33 MHz.\n");
+		tmp = 33333333;
+	}
+	ps_clk = clk_register_fixed_rate(NULL, "ps_clk", NULL, CLK_IS_ROOT,
+			tmp);
+
+	/* PLLs */
+	clk = clk_register_zynq_pll("armpll_int", "ps_clk", SLCR_ARMPLL_CTRL,
+			SLCR_PLL_STATUS, 0, &armpll_lock);
+	clks[armpll] = clk_register_mux(NULL, clk_output_name[armpll],
+			armpll_parents, 2, 0, SLCR_ARMPLL_CTRL, 4, 1, 0,
+			&armpll_lock);
+
+	clk = clk_register_zynq_pll("ddrpll_int", "ps_clk", SLCR_DDRPLL_CTRL,
+			SLCR_PLL_STATUS, 1, &ddrpll_lock);
+	clks[ddrpll] = clk_register_mux(NULL, clk_output_name[ddrpll],
+			ddrpll_parents, 2, 0, SLCR_DDRPLL_CTRL, 4, 1, 0,
+			&ddrpll_lock);
+
+	clk = clk_register_zynq_pll("iopll_int", "ps_clk", SLCR_IOPLL_CTRL,
+			SLCR_PLL_STATUS, 2, &iopll_lock);
+	clks[iopll] = clk_register_mux(NULL, clk_output_name[iopll],
+			iopll_parents, 2, 0, SLCR_IOPLL_CTRL, 4, 1, 0,
+			&iopll_lock);
+
+	/* CPU clocks */
+	tmp = readl(SLCR_621_TRUE) & 1;
+	clk = clk_register_mux(NULL, "cpu_mux", cpu_parents, 4, 0,
+			SLCR_ARM_CLK_CTRL, 4, 2, 0, &armclk_lock);
+	clk = clk_register_divider(NULL, "cpu_div", "cpu_mux", 0,
+			SLCR_ARM_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &armclk_lock);
+
+	clks[cpu_6or4x] = clk_register_gate(NULL, clk_output_name[cpu_6or4x],
+			"cpu_div", CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED,
+			SLCR_ARM_CLK_CTRL, 24, 0, &armclk_lock);
+
+	clk = clk_register_fixed_factor(NULL, "cpu_3or2x_div", "cpu_div", 0,
+			1, 2);
+	clks[cpu_3or2x] = clk_register_gate(NULL, clk_output_name[cpu_3or2x],
+			"cpu_3or2x_div", CLK_IGNORE_UNUSED,
+			SLCR_ARM_CLK_CTRL, 25, 0, &armclk_lock);
+
+	clk = clk_register_fixed_factor(NULL, "cpu_2x_div", "cpu_div", 0, 1,
+			2 + tmp);
+	clks[cpu_2x] = clk_register_gate(NULL, clk_output_name[cpu_2x],
+			"cpu_2x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL,
+			26, 0, &armclk_lock);
+
+	clk = clk_register_fixed_factor(NULL, "cpu_1x_div", "cpu_div", 0, 1,
+			4 + 2 * tmp);
+	clks[cpu_1x] = clk_register_gate(NULL, clk_output_name[cpu_1x],
+			"cpu_1x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL, 27,
+			0, &armclk_lock);
+
+	/* Timers */
+	swdt_ext_clk_mux_parents[0] = clk_output_name[cpu_1x];
+	for (i = 0; i < ARRAY_SIZE(swdt_ext_clk_input_names); i++) {
+		int idx = of_property_match_string(np, "clock-names",
+				swdt_ext_clk_input_names[i]);
+		if (idx >= 0)
+			swdt_ext_clk_mux_parents[i + 1] =
+				of_clk_get_parent_name(np, idx);
+		else
+			swdt_ext_clk_mux_parents[i + 1] = dummy_nm;
+	}
+	clks[swdt] = clk_register_mux(NULL, clk_output_name[swdt],
+			swdt_ext_clk_mux_parents, 2, CLK_SET_RATE_PARENT,
+			SLCR_SWDT_CLK_SEL, 0, 1, 0, &gem0clk_lock);
+
+	/* DDR clocks */
+	clk = clk_register_divider(NULL, "ddr2x_div", "ddrpll", 0,
+			SLCR_DDR_CLK_CTRL, 26, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &ddrclk_lock);
+	clks[ddr2x] = clk_register_gate(NULL, clk_output_name[ddr2x],
+			"ddr2x_div", 0, SLCR_DDR_CLK_CTRL, 1, 0, &ddrclk_lock);
+	clk_prepare_enable(clks[ddr2x]);
+	clk = clk_register_divider(NULL, "ddr3x_div", "ddrpll", 0,
+			SLCR_DDR_CLK_CTRL, 20, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &ddrclk_lock);
+	clks[ddr3x] = clk_register_gate(NULL, clk_output_name[ddr3x],
+			"ddr3x_div", 0, SLCR_DDR_CLK_CTRL, 0, 0, &ddrclk_lock);
+	clk_prepare_enable(clks[ddr3x]);
+
+	clk = clk_register_divider(NULL, "dci_div0", "ddrpll", 0,
+			SLCR_DCI_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &dciclk_lock);
+	clk = clk_register_divider(NULL, "dci_div1", "dci_div0",
+			CLK_SET_RATE_PARENT, SLCR_DCI_CLK_CTRL, 20, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+			&dciclk_lock);
+	clks[dci] = clk_register_gate(NULL, clk_output_name[dci], "dci_div1",
+			CLK_SET_RATE_PARENT, SLCR_DCI_CLK_CTRL, 0, 0,
+			&dciclk_lock);
+	clk_prepare_enable(clks[dci]);
+
+	/* Peripheral clocks */
+	for (i = fclk0; i <= fclk3; i++)
+		zynq_clk_register_fclk(i, clk_output_name[i],
+				SLCR_FPGA0_CLK_CTRL + 0x10 * (i - fclk0),
+				periph_parents);
+
+	zynq_clk_register_periph_clk(lqspi, 0, clk_output_name[lqspi], NULL,
+			SLCR_LQSPI_CLK_CTRL, periph_parents, 0);
+
+	zynq_clk_register_periph_clk(smc, 0, clk_output_name[smc], NULL,
+			SLCR_SMC_CLK_CTRL, periph_parents, 0);
+
+	zynq_clk_register_periph_clk(pcap, 0, clk_output_name[pcap], NULL,
+			SLCR_PCAP_CLK_CTRL, periph_parents, 0);
+
+	zynq_clk_register_periph_clk(sdio0, sdio1, clk_output_name[sdio0],
+			clk_output_name[sdio1], SLCR_SDIO_CLK_CTRL,
+			periph_parents, 1);
+
+	zynq_clk_register_periph_clk(uart0, uart1, clk_output_name[uart0],
+			clk_output_name[uart1], SLCR_UART_CLK_CTRL,
+			periph_parents, 1);
+
+	zynq_clk_register_periph_clk(spi0, spi1, clk_output_name[spi0],
+			clk_output_name[spi1], SLCR_SPI_CLK_CTRL,
+			periph_parents, 1);
+
+	for (i = 0; i < ARRAY_SIZE(gem0_emio_input_names); i++) {
+		int idx = of_property_match_string(np, "clock-names",
+				gem0_emio_input_names[i]);
+		if (idx >= 0)
+			gem0_mux_parents[i + 1] = of_clk_get_parent_name(np,
+					idx);
+	}
+	clk = clk_register_mux(NULL, "gem0_mux", periph_parents, 4, 0,
+			SLCR_GEM0_CLK_CTRL, 4, 2, 0, &gem0clk_lock);
+	clk = clk_register_divider(NULL, "gem0_div0", "gem0_mux", 0,
+			SLCR_GEM0_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &gem0clk_lock);
+	clk = clk_register_divider(NULL, "gem0_div1", "gem0_div0",
+			CLK_SET_RATE_PARENT, SLCR_GEM0_CLK_CTRL, 20, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+			&gem0clk_lock);
+	clk = clk_register_mux(NULL, "gem0_emio_mux", gem0_mux_parents, 2, 0,
+			SLCR_GEM0_CLK_CTRL, 6, 1, 0, &gem0clk_lock);
+	clks[gem0] = clk_register_gate(NULL, clk_output_name[gem0],
+			"gem0_emio_mux", CLK_SET_RATE_PARENT,
+			SLCR_GEM0_CLK_CTRL, 0, 0, &gem0clk_lock);
+
+	for (i = 0; i < ARRAY_SIZE(gem1_emio_input_names); i++) {
+		int idx = of_property_match_string(np, "clock-names",
+				gem1_emio_input_names[i]);
+		if (idx >= 0)
+			gem1_mux_parents[i + 1] = of_clk_get_parent_name(np,
+					idx);
+	}
+	clk = clk_register_mux(NULL, "gem1_mux", periph_parents, 4, 0,
+			SLCR_GEM1_CLK_CTRL, 4, 2, 0, &gem1clk_lock);
+	clk = clk_register_divider(NULL, "gem1_div0", "gem1_mux", 0,
+			SLCR_GEM1_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &gem1clk_lock);
+	clk = clk_register_divider(NULL, "gem1_div1", "gem1_div0",
+			CLK_SET_RATE_PARENT, SLCR_GEM1_CLK_CTRL, 20, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+			&gem1clk_lock);
+	clk = clk_register_mux(NULL, "gem1_emio_mux", gem1_mux_parents, 2, 0,
+			SLCR_GEM1_CLK_CTRL, 6, 1, 0, &gem1clk_lock);
+	clks[gem1] = clk_register_gate(NULL, clk_output_name[gem1],
+			"gem1_emio_mux", CLK_SET_RATE_PARENT,
+			SLCR_GEM1_CLK_CTRL, 0, 0, &gem1clk_lock);
+
+	tmp = strlen("mio_clk_00x");
+	clk_name = kmalloc(tmp, GFP_KERNEL);
+	for (i = 0; i < NUM_MIO_PINS; i++) {
+		int idx;
+
+		snprintf(clk_name, tmp, "mio_clk_%2.2d", i);
+		idx = of_property_match_string(np, "clock-names", clk_name);
+		if (idx >= 0)
+			can_mio_mux_parents[i] = of_clk_get_parent_name(np,
+						idx);
+		else
+			can_mio_mux_parents[i] = dummy_nm;
+	}
+	kfree(clk_name);
+	clk = clk_register_mux(NULL, "can_mux", periph_parents, 4, 0,
+			SLCR_CAN_CLK_CTRL, 4, 2, 0, &canclk_lock);
+	clk = clk_register_divider(NULL, "can_div0", "can_mux", 0,
+			SLCR_CAN_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &canclk_lock);
+	clk = clk_register_divider(NULL, "can_div1", "can_div0",
+			CLK_SET_RATE_PARENT, SLCR_CAN_CLK_CTRL, 20, 6,
+			CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+			&canclk_lock);
+	clk = clk_register_gate(NULL, "can0_gate", "can_div1",
+			CLK_SET_RATE_PARENT, SLCR_CAN_CLK_CTRL, 0, 0,
+			&canclk_lock);
+	clk = clk_register_gate(NULL, "can1_gate", "can_div1",
+			CLK_SET_RATE_PARENT, SLCR_CAN_CLK_CTRL, 1, 0,
+			&canclk_lock);
+	clk = clk_register_mux(NULL, "can0_mio_mux",
+			can_mio_mux_parents, 54, CLK_SET_RATE_PARENT,
+			SLCR_CAN_MIOCLK_CTRL, 0, 6, 0, &canmioclk_lock);
+	clk = clk_register_mux(NULL, "can1_mio_mux",
+			can_mio_mux_parents, 54, CLK_SET_RATE_PARENT,
+			SLCR_CAN_MIOCLK_CTRL, 16, 6, 0, &canmioclk_lock);
+	clks[can0] = clk_register_mux(NULL, clk_output_name[can0],
+			can0_mio_mux2_parents, 2, CLK_SET_RATE_PARENT,
+			SLCR_CAN_MIOCLK_CTRL, 6, 1, 0, &canmioclk_lock);
+	clks[can1] = clk_register_mux(NULL, clk_output_name[can1],
+			can1_mio_mux2_parents, 2, CLK_SET_RATE_PARENT,
+			SLCR_CAN_MIOCLK_CTRL, 22, 1, 0, &canmioclk_lock);
+
+	for (i = 0; i < ARRAY_SIZE(dbgtrc_emio_input_names); i++) {
+		int idx = of_property_match_string(np, "clock-names",
+				dbgtrc_emio_input_names[i]);
+		if (idx >= 0)
+			dbg_emio_mux_parents[i + 1] = of_clk_get_parent_name(np,
+					idx);
+	}
+	clk = clk_register_mux(NULL, "dbg_mux", periph_parents, 4, 0,
+			SLCR_DBG_CLK_CTRL, 4, 2, 0, &dbgclk_lock);
+	clk = clk_register_divider(NULL, "dbg_div", "dbg_mux", 0,
+			SLCR_DBG_CLK_CTRL, 8, 6, CLK_DIVIDER_ONE_BASED |
+			CLK_DIVIDER_ALLOW_ZERO, &dbgclk_lock);
+	clk = clk_register_mux(NULL, "dbg_emio_mux", dbg_emio_mux_parents, 2, 0,
+			SLCR_DBG_CLK_CTRL, 6, 1, 0, &dbgclk_lock);
+	clks[dbg_trc] = clk_register_gate(NULL, clk_output_name[dbg_trc],
+			"dbg_emio_mux", CLK_SET_RATE_PARENT, SLCR_DBG_CLK_CTRL,
+			0, 0, &dbgclk_lock);
+	clks[dbg_apb] = clk_register_gate(NULL, clk_output_name[dbg_apb],
+			clk_output_name[cpu_1x], 0, SLCR_DBG_CLK_CTRL, 1, 0,
+			&dbgclk_lock);
+
+	/* One gated clock for all APER clocks. */
+	clks[dma] = clk_register_gate(NULL, clk_output_name[dma],
+			clk_output_name[cpu_2x], 0, SLCR_APER_CLK_CTRL, 0, 0,
+			&aperclk_lock);
+	clks[usb0_aper] = clk_register_gate(NULL, clk_output_name[usb0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 2, 0,
+			&aperclk_lock);
+	clks[usb1_aper] = clk_register_gate(NULL, clk_output_name[usb1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 3, 0,
+			&aperclk_lock);
+	clks[gem0_aper] = clk_register_gate(NULL, clk_output_name[gem0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 6, 0,
+			&aperclk_lock);
+	clks[gem1_aper] = clk_register_gate(NULL, clk_output_name[gem1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 7, 0,
+			&aperclk_lock);
+	clks[sdio0_aper] = clk_register_gate(NULL, clk_output_name[sdio0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 10, 0,
+			&aperclk_lock);
+	clks[sdio1_aper] = clk_register_gate(NULL, clk_output_name[sdio1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 11, 0,
+			&aperclk_lock);
+	clks[spi0_aper] = clk_register_gate(NULL, clk_output_name[spi0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 14, 0,
+			&aperclk_lock);
+	clks[spi1_aper] = clk_register_gate(NULL, clk_output_name[spi1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 15, 0,
+			&aperclk_lock);
+	clks[can0_aper] = clk_register_gate(NULL, clk_output_name[can0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 16, 0,
+			&aperclk_lock);
+	clks[can1_aper] = clk_register_gate(NULL, clk_output_name[can1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 17, 0,
+			&aperclk_lock);
+	clks[i2c0_aper] = clk_register_gate(NULL, clk_output_name[i2c0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 18, 0,
+			&aperclk_lock);
+	clks[i2c1_aper] = clk_register_gate(NULL, clk_output_name[i2c1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 19, 0,
+			&aperclk_lock);
+	clks[uart0_aper] = clk_register_gate(NULL, clk_output_name[uart0_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 20, 0,
+			&aperclk_lock);
+	clks[uart1_aper] = clk_register_gate(NULL, clk_output_name[uart1_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 21, 0,
+			&aperclk_lock);
+	clks[gpio_aper] = clk_register_gate(NULL, clk_output_name[gpio_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 22, 0,
+			&aperclk_lock);
+	clks[lqspi_aper] = clk_register_gate(NULL, clk_output_name[lqspi_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 23, 0,
+			&aperclk_lock);
+	clks[smc_aper] = clk_register_gate(NULL, clk_output_name[smc_aper],
+			clk_output_name[cpu_1x], 0, SLCR_APER_CLK_CTRL, 24, 0,
+			&aperclk_lock);
+
+	for (i = 0; i < ARRAY_SIZE(clks); i++) {
+		if (IS_ERR(clks[i])) {
+			pr_err("Zynq clk %d: register failed with %ld\n",
+			       i, PTR_ERR(clks[i]));
+			BUG();
+		}
+	}
+
+	clk_data.clks = clks;
+	clk_data.clk_num = ARRAY_SIZE(clks);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+}
+
+CLK_OF_DECLARE(zynq_clkc, "xlnx,ps7-clkc", zynq_clk_setup);
+
+void __init zynq_clock_init(void __iomem *slcr_base)
+{
+	zynq_slcr_base_priv = slcr_base;
+	of_clk_init(NULL);
+}
diff --git a/drivers/clk/zynq/pll.c b/drivers/clk/zynq/pll.c
new file mode 100644
index 000000000000..47e307c25a7b
--- /dev/null
+++ b/drivers/clk/zynq/pll.c
@@ -0,0 +1,235 @@
+/*
+ * Zynq PLL driver
+ *
+ *  Copyright (C) 2013 Xilinx
+ *
+ *  Sören Brinkmann <soren.brinkmann@xilinx.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include <linux/clk/zynq.h>
+#include <linux/clk-provider.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+
+/**
+ * struct zynq_pll
+ * @hw:		Handle between common and hardware-specific interfaces
+ * @pll_ctrl:	PLL control register
+ * @pll_status:	PLL status register
+ * @lock:	Register lock
+ * @lockbit:	Indicates the associated PLL_LOCKED bit in the PLL status
+ *		register.
+ */
+struct zynq_pll {
+	struct clk_hw	hw;
+	void __iomem	*pll_ctrl;
+	void __iomem	*pll_status;
+	spinlock_t	*lock;
+	u8		lockbit;
+};
+#define to_zynq_pll(_hw)	container_of(_hw, struct zynq_pll, hw)
+
+/* Register bitfield defines */
+#define PLLCTRL_FBDIV_MASK	0x7f000
+#define PLLCTRL_FBDIV_SHIFT	12
+#define PLLCTRL_BPQUAL_MASK	(1 << 3)
+#define PLLCTRL_PWRDWN_MASK	2
+#define PLLCTRL_PWRDWN_SHIFT	1
+#define PLLCTRL_RESET_MASK	1
+#define PLLCTRL_RESET_SHIFT	0
+
+/**
+ * zynq_pll_round_rate() - Round a clock frequency
+ * @hw:		Handle between common and hardware-specific interfaces
+ * @rate:	Desired clock frequency
+ * @prate:	Clock frequency of parent clock
+ * Returns frequency closest to @rate the hardware can generate.
+ */
+static long zynq_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+		unsigned long *prate)
+{
+	u32 fbdiv;
+
+	fbdiv = DIV_ROUND_CLOSEST(rate, *prate);
+	if (fbdiv < 13)
+		fbdiv = 13;
+	else if (fbdiv > 66)
+		fbdiv = 66;
+
+	return *prate * fbdiv;
+}
+
+/**
+ * zynq_pll_recalc_rate() - Recalculate clock frequency
+ * @hw:			Handle between common and hardware-specific interfaces
+ * @parent_rate:	Clock frequency of parent clock
+ * Returns current clock frequency.
+ */
+static unsigned long zynq_pll_recalc_rate(struct clk_hw *hw,
+		unsigned long parent_rate)
+{
+	struct zynq_pll *clk = to_zynq_pll(hw);
+	u32 fbdiv;
+
+	/*
+	 * makes probably sense to redundantly save fbdiv in the struct
+	 * zynq_pll to save the IO access.
+	 */
+	fbdiv = (readl(clk->pll_ctrl) & PLLCTRL_FBDIV_MASK) >>
+			PLLCTRL_FBDIV_SHIFT;
+
+	return parent_rate * fbdiv;
+}
+
+/**
+ * zynq_pll_is_enabled - Check if a clock is enabled
+ * @hw:		Handle between common and hardware-specific interfaces
+ * Returns 1 if the clock is enabled, 0 otherwise.
+ *
+ * Not sure this is a good idea, but since disabled means bypassed for
+ * this clock implementation we say we are always enabled.
+ */
+static int zynq_pll_is_enabled(struct clk_hw *hw)
+{
+	unsigned long flags = 0;
+	u32 reg;
+	struct zynq_pll *clk = to_zynq_pll(hw);
+
+	spin_lock_irqsave(clk->lock, flags);
+
+	reg = readl(clk->pll_ctrl);
+
+	spin_unlock_irqrestore(clk->lock, flags);
+
+	return !(reg & (PLLCTRL_RESET_MASK | PLLCTRL_PWRDWN_MASK));
+}
+
+/**
+ * zynq_pll_enable - Enable clock
+ * @hw:		Handle between common and hardware-specific interfaces
+ * Returns 0 on success
+ */
+static int zynq_pll_enable(struct clk_hw *hw)
+{
+	unsigned long flags = 0;
+	u32 reg;
+	struct zynq_pll *clk = to_zynq_pll(hw);
+
+	if (zynq_pll_is_enabled(hw))
+		return 0;
+
+	pr_info("PLL: enable\n");
+
+	/* Power up PLL and wait for lock */
+	spin_lock_irqsave(clk->lock, flags);
+
+	reg = readl(clk->pll_ctrl);
+	reg &= ~(PLLCTRL_RESET_MASK | PLLCTRL_PWRDWN_MASK);
+	writel(reg, clk->pll_ctrl);
+	while (!(readl(clk->pll_status) & (1 << clk->lockbit)))
+		;
+
+	spin_unlock_irqrestore(clk->lock, flags);
+
+	return 0;
+}
+
+/**
+ * zynq_pll_disable - Disable clock
+ * @hw:		Handle between common and hardware-specific interfaces
+ * Returns 0 on success
+ */
+static void zynq_pll_disable(struct clk_hw *hw)
+{
+	unsigned long flags = 0;
+	u32 reg;
+	struct zynq_pll *clk = to_zynq_pll(hw);
+
+	if (!zynq_pll_is_enabled(hw))
+		return;
+
+	pr_info("PLL: shutdown\n");
+
+	/* shut down PLL */
+	spin_lock_irqsave(clk->lock, flags);
+
+	reg = readl(clk->pll_ctrl);
+	reg |= PLLCTRL_RESET_MASK | PLLCTRL_PWRDWN_MASK;
+	writel(reg, clk->pll_ctrl);
+
+	spin_unlock_irqrestore(clk->lock, flags);
+}
+
+static const struct clk_ops zynq_pll_ops = {
+	.enable = zynq_pll_enable,
+	.disable = zynq_pll_disable,
+	.is_enabled = zynq_pll_is_enabled,
+	.round_rate = zynq_pll_round_rate,
+	.recalc_rate = zynq_pll_recalc_rate
+};
+
+/**
+ * clk_register_zynq_pll() - Register PLL with the clock framework
+ * @np	Pointer to the DT device node
+ */
+struct clk *clk_register_zynq_pll(const char *name, const char *parent,
+		void __iomem *pll_ctrl, void __iomem *pll_status, u8 lock_index,
+		spinlock_t *lock)
+{
+	struct zynq_pll *pll;
+	struct clk *clk;
+	u32 reg;
+	const char *parent_arr[1] = {parent};
+	unsigned long flags = 0;
+	struct clk_init_data initd = {
+		.name = name,
+		.parent_names = parent_arr,
+		.ops = &zynq_pll_ops,
+		.num_parents = 1,
+		.flags = 0
+	};
+
+	pll = kmalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: Could not allocate Zynq PLL clk.\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* Populate the struct */
+	pll->hw.init = &initd;
+	pll->pll_ctrl = pll_ctrl;
+	pll->pll_status = pll_status;
+	pll->lockbit = lock_index;
+	pll->lock = lock;
+
+	spin_lock_irqsave(pll->lock, flags);
+
+	reg = readl(pll->pll_ctrl);
+	reg &= ~PLLCTRL_BPQUAL_MASK;
+	writel(reg, pll->pll_ctrl);
+
+	spin_unlock_irqrestore(pll->lock, flags);
+
+	clk = clk_register(NULL, &pll->hw);
+	if (WARN_ON(IS_ERR(clk)))
+		goto free_pll;
+
+	return clk;
+
+free_pll:
+	kfree(pll);
+
+	return clk;
+}