Patchwork [1/5] ARM: imx: add clock support for imx6sl

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Submitter Shawn Guo
Date May 3, 2013, 3:49 a.m.
Message ID <1367552995-31777-2-git-send-email-shawn.guo@linaro.org>
Download mbox | patch
Permalink /patch/241144/
State New
Headers show

Comments

Shawn Guo - May 3, 2013, 3:49 a.m.
Add clock support for i.MX6 SoloLite.  It uses the dtc marco support to
define all clock IDs in imx6sl-clock.h, which will be included by both
clock driver and device tree sources, so that the data will stay sync
all the time between kernel and DT.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 .../devicetree/bindings/clock/imx6sl-clock.txt     |   10 +
 arch/arm/mach-imx/clk-imx6sl.c                     |  270 ++++++++++++++++++++
 include/dt-bindings/clock/imx6sl-clock.h           |  148 +++++++++++
 3 files changed, 428 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/imx6sl-clock.txt
 create mode 100644 arch/arm/mach-imx/clk-imx6sl.c
 create mode 100644 include/dt-bindings/clock/imx6sl-clock.h

Patch

diff --git a/Documentation/devicetree/bindings/clock/imx6sl-clock.txt b/Documentation/devicetree/bindings/clock/imx6sl-clock.txt
new file mode 100644
index 0000000..15e40bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx6sl-clock.txt
@@ -0,0 +1,10 @@ 
+* Clock bindings for Freescale i.MX6 SoloLite
+
+Required properties:
+- compatible: Should be "fsl,imx6sl-ccm"
+- reg: Address and length of the register set
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx6sl-clock.h
+for the full list of i.MX6 SoloLite clock IDs.
diff --git a/arch/arm/mach-imx/clk-imx6sl.c b/arch/arm/mach-imx/clk-imx6sl.c
new file mode 100644
index 0000000..94e5d12
--- /dev/null
+++ b/arch/arm/mach-imx/clk-imx6sl.c
@@ -0,0 +1,270 @@ 
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <dt-bindings/clock/imx6sl-clock.h>
+
+#include "clk.h"
+#include "common.h"
+
+static const char * const step_sels[]		= { "osc", "pll2_pfd2", };
+static const char * const pll1_sw_sels[]	= { "pll1_sys", "step", };
+static const char * const ocram_alt_sels[]	= { "pll2_pfd2", "pll3_pfd1", };
+static const char * const ocram_sels[]		= { "periph", "ocram_alt_sels", };
+static const char * const pre_periph_sels[]	= { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", };
+static const char * const periph_clk2_sels[]	= { "pll3_usb_otg", "osc", "osc", "dummy", };
+static const char * const periph2_clk2_sels[]	= { "pll3_usb_otg", "pll2_bus", };
+static const char * const periph_sels[]		= { "pre_periph_sel", "periph_clk2_podf", };
+static const char * const periph2_sels[]	= { "pre_periph2_sel", "periph2_clk2_podf", };
+static const char * const csi_lcdif_sels[]	= { "mmdc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", };
+static const char * const usdhc_sels[]		= { "pll2_pfd2", "pll2_pfd0", };
+static const char * const ssi_sels[]		= { "pll3_pfd2", "pll3_pfd3", "pll4_post_div", "dummy", };
+static const char * const perclk_sels[]		= { "ipg", "osc", };
+static const char * const epdc_pxp_sels[]	= { "mmdc", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd1", };
+static const char * const gpu2d_ovg_sels[]	= { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", };
+static const char * const gpu2d_sels[]		= { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", };
+static const char * const lcdif_pix_sels[]	= { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", };
+static const char * const epdc_pix_sels[]	= { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", };
+static const char * const audio_sels[]		= { "pll4_post_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", };
+static const char * const ecspi_sels[]		= { "pll3_60m", "osc", };
+static const char * const uart_sels[]		= { "pll3_80m", "osc", };
+
+static struct clk_div_table clk_enet_ref_table[] = {
+	{ .val = 0, .div = 20, },
+	{ .val = 1, .div = 10, },
+	{ .val = 2, .div = 5, },
+	{ .val = 3, .div = 4, },
+	{ }
+};
+
+static struct clk_div_table post_div_table[] = {
+	{ .val = 2, .div = 1, },
+	{ .val = 1, .div = 2, },
+	{ .val = 0, .div = 4, },
+	{ }
+};
+
+static struct clk_div_table video_div_table[] = {
+	{ .val = 0, .div = 1, },
+	{ .val = 1, .div = 2, },
+	{ .val = 2, .div = 1, },
+	{ .val = 3, .div = 4, },
+	{ }
+};
+
+static struct clk *clks[IMX6SL_CLK_CLK_END];
+static struct clk_onecell_data clk_data;
+
+int __init imx6sl_clocks_init(void)
+{
+	struct device_node *np;
+	void __iomem *base;
+	int irq;
+	int i;
+
+	of_clk_init(NULL);
+
+	clks[IMX6SL_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
+	clks[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0);
+	clks[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0);
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+
+	/*                                             type               name            parent  base         div_mask */
+	clks[IMX6SL_CLK_PLL1_SYS]      = imx_clk_pllv3(IMX_PLLV3_SYS,	  "pll1_sys",	   "osc", base,        0x7f);
+	clks[IMX6SL_CLK_PLL2_BUS]      = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus",	   "osc", base + 0x30, 0x1);
+	clks[IMX6SL_CLK_PLL3_USB_OTG]  = imx_clk_pllv3(IMX_PLLV3_USB,	  "pll3_usb_otg",  "osc", base + 0x10, 0x3);
+	clks[IMX6SL_CLK_PLL4_AUDIO]    = imx_clk_pllv3(IMX_PLLV3_AV,	  "pll4_audio",	   "osc", base + 0x70, 0x7f);
+	clks[IMX6SL_CLK_PLL5_VIDEO]    = imx_clk_pllv3(IMX_PLLV3_AV,	  "pll5_video",	   "osc", base + 0xa0, 0x7f);
+	clks[IMX6SL_CLK_PLL6_ENET]     = imx_clk_pllv3(IMX_PLLV3_ENET,	  "pll6_enet",	   "osc", base + 0xe0, 0x3);
+	clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_pllv3(IMX_PLLV3_USB,     "pll7_usb_host", "osc", base + 0x20, 0x3);
+
+	/*
+	 * usbphy1 and usbphy2 are implemented as dummy gates using reserve
+	 * bit 20.  They are used by phy driver to keep the refcount of
+	 * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be
+	 * turned on during boot, and software will not need to control it
+	 * anymore after that.
+	 */
+	clks[IMX6SL_CLK_USBPHY1]      = imx_clk_gate("usbphy1",      "pll3_usb_otg",  base + 0x10, 20);
+	clks[IMX6SL_CLK_USBPHY2]      = imx_clk_gate("usbphy2",      "pll7_usb_host", base + 0x20, 20);
+	clks[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy",         base + 0x10, 6);
+	clks[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy",         base + 0x20, 6);
+
+	/*                                                           dev   name              parent_name      flags                reg        shift width div: flags, div_table lock */
+	clks[IMX6SL_CLK_PLL4_POST_DIV]  = clk_register_divider_table(NULL, "pll4_post_div",  "pll4_audio",    CLK_SET_RATE_PARENT, base + 0x70,  19, 2,   0, post_div_table, &imx_ccm_lock);
+	clks[IMX6SL_CLK_PLL5_POST_DIV]  = clk_register_divider_table(NULL, "pll5_post_div",  "pll5_video",    CLK_SET_RATE_PARENT, base + 0xa0,  19, 2,   0, post_div_table, &imx_ccm_lock);
+	clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2,   0, video_div_table, &imx_ccm_lock);
+	clks[IMX6SL_CLK_ENET_REF]       = clk_register_divider_table(NULL, "enet_ref",       "pll6_enet",     0,                   base + 0xe0,  0,  2,   0, clk_enet_ref_table, &imx_ccm_lock);
+
+	/*                                       name         parent_name     reg           idx */
+	clks[IMX6SL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0", "pll2_bus",     base + 0x100, 0);
+	clks[IMX6SL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus",     base + 0x100, 1);
+	clks[IMX6SL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus",     base + 0x100, 2);
+	clks[IMX6SL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0,  0);
+	clks[IMX6SL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0,  1);
+	clks[IMX6SL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0,  2);
+	clks[IMX6SL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0,  3);
+
+	/*                                                name         parent_name     mult div */
+	clks[IMX6SL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2",      1, 2);
+	clks[IMX6SL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg",   1, 4);
+	clks[IMX6SL_CLK_PLL3_80M]  = imx_clk_fixed_factor("pll3_80m",  "pll3_usb_otg",   1, 6);
+	clks[IMX6SL_CLK_PLL3_60M]  = imx_clk_fixed_factor("pll3_60m",  "pll3_usb_otg",   1, 8);
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-ccm");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+
+	/*                                              name                reg       shift width parent_names     num_parents */
+	clks[IMX6SL_CLK_STEP]             = imx_clk_mux("step",             base + 0xc,  8,  1, step_sels,         ARRAY_SIZE(step_sels));
+	clks[IMX6SL_CLK_PLL1_SW]          = imx_clk_mux("pll1_sw",          base + 0xc,  2,  1, pll1_sw_sels,      ARRAY_SIZE(pll1_sw_sels));
+	clks[IMX6SL_CLK_OCRAM_ALT_SEL]    = imx_clk_mux("ocram_alt_sel",    base + 0x14, 7,  1, ocram_alt_sels,    ARRAY_SIZE(ocram_alt_sels));
+	clks[IMX6SL_CLK_OCRAM_SEL]        = imx_clk_mux("ocram_sel",        base + 0x14, 6,  1, ocram_sels,        ARRAY_SIZE(ocram_sels));
+	clks[IMX6SL_CLK_PRE_PERIPH2_SEL]  = imx_clk_mux("pre_periph2_sel",  base + 0x18, 21, 2, pre_periph_sels,   ARRAY_SIZE(pre_periph_sels));
+	clks[IMX6SL_CLK_PRE_PERIPH_SEL]   = imx_clk_mux("pre_periph_sel",   base + 0x18, 18, 2, pre_periph_sels,   ARRAY_SIZE(pre_periph_sels));
+	clks[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
+	clks[IMX6SL_CLK_PERIPH_CLK2_SEL]  = imx_clk_mux("periph_clk2_sel",  base + 0x18, 12, 2, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
+	clks[IMX6SL_CLK_CSI_SEL]          = imx_clk_mux("csi_sel",          base + 0x3c, 9,  2, csi_lcdif_sels,    ARRAY_SIZE(csi_lcdif_sels));
+	clks[IMX6SL_CLK_LCDIF_AXI_SEL]    = imx_clk_mux("lcdif_axi_sel",    base + 0x3c, 14, 2, csi_lcdif_sels,    ARRAY_SIZE(csi_lcdif_sels));
+	clks[IMX6SL_CLK_USDHC1_SEL]       = imx_clk_mux("usdhc1_sel",       base + 0x1c, 16, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
+	clks[IMX6SL_CLK_USDHC2_SEL]       = imx_clk_mux("usdhc2_sel",       base + 0x1c, 17, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
+	clks[IMX6SL_CLK_USDHC3_SEL]       = imx_clk_mux("usdhc3_sel",       base + 0x1c, 18, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
+	clks[IMX6SL_CLK_USDHC4_SEL]       = imx_clk_mux("usdhc4_sel",       base + 0x1c, 19, 1, usdhc_sels,        ARRAY_SIZE(usdhc_sels));
+	clks[IMX6SL_CLK_SSI1_SEL]         = imx_clk_mux("ssi1_sel",         base + 0x1c, 10, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
+	clks[IMX6SL_CLK_SSI2_SEL]         = imx_clk_mux("ssi2_sel",         base + 0x1c, 12, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
+	clks[IMX6SL_CLK_SSI3_SEL]         = imx_clk_mux("ssi3_sel",         base + 0x1c, 14, 2, ssi_sels,          ARRAY_SIZE(ssi_sels));
+	clks[IMX6SL_CLK_PERCLK_SEL]       = imx_clk_mux("perclk_sel",       base + 0x1c, 6,  1, perclk_sels,       ARRAY_SIZE(perclk_sels));
+	clks[IMX6SL_CLK_PXP_AXI_SEL]      = imx_clk_mux("pxp_axi_sel",      base + 0x34, 6,  3, epdc_pxp_sels,     ARRAY_SIZE(epdc_pxp_sels));
+	clks[IMX6SL_CLK_EPDC_AXI_SEL]     = imx_clk_mux("epdc_axi_sel",     base + 0x34, 15, 3, epdc_pxp_sels,     ARRAY_SIZE(epdc_pxp_sels));
+	clks[IMX6SL_CLK_GPU2D_OVG_SEL]    = imx_clk_mux("gpu2d_ovg_sel",    base + 0x18, 4,  2, gpu2d_ovg_sels,    ARRAY_SIZE(gpu2d_ovg_sels));
+	clks[IMX6SL_CLK_GPU2D_SEL]        = imx_clk_mux("gpu2d_sel",        base + 0x18, 8,  2, gpu2d_sels,        ARRAY_SIZE(gpu2d_sels));
+	clks[IMX6SL_CLK_LCDIF_PIX_SEL]    = imx_clk_mux("lcdif_pix_sel",    base + 0x38, 6,  3, lcdif_pix_sels,    ARRAY_SIZE(lcdif_pix_sels));
+	clks[IMX6SL_CLK_EPDC_PIX_SEL]     = imx_clk_mux("epdc_pix_sel",     base + 0x38, 15, 3, epdc_pix_sels,     ARRAY_SIZE(epdc_pix_sels));
+	clks[IMX6SL_CLK_SPDIF0_SEL]       = imx_clk_mux("spdif0_sel",       base + 0x30, 20, 2, audio_sels,        ARRAY_SIZE(audio_sels));
+	clks[IMX6SL_CLK_SPDIF1_SEL]       = imx_clk_mux("spdif1_sel",       base + 0x30, 7,  2, audio_sels,        ARRAY_SIZE(audio_sels));
+	clks[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels,        ARRAY_SIZE(audio_sels));
+	clks[IMX6SL_CLK_ECSPI_SEL]        = imx_clk_mux("ecspi_sel",        base + 0x38, 18, 1, ecspi_sels,        ARRAY_SIZE(ecspi_sels));
+	clks[IMX6SL_CLK_UART_SEL]         = imx_clk_mux("uart_sel",         base + 0x24, 6,  1, uart_sels,         ARRAY_SIZE(uart_sels));
+
+	/*                                          name       reg        shift width busy: reg, shift parent_names  num_parents */
+	clks[IMX6SL_CLK_PERIPH]  = imx_clk_busy_mux("periph",  base + 0x14, 25,  1,   base + 0x48, 5,  periph_sels,  ARRAY_SIZE(periph_sels));
+	clks[IMX6SL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26,  1,   base + 0x48, 3,  periph2_sels, ARRAY_SIZE(periph2_sels));
+
+	/*                                                   name                 parent_name          reg       shift width */
+	clks[IMX6SL_CLK_OCRAM_PODF]        = imx_clk_divider("ocram_podf",        "ocram_sel",         base + 0x14, 16, 3);
+	clks[IMX6SL_CLK_PERIPH_CLK2_PODF]  = imx_clk_divider("periph_clk2_podf",  "periph_clk2_sel",   base + 0x14, 27, 3);
+	clks[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_divider("periph2_clk2_podf", "periph2_clk2_sel",  base + 0x14, 0,  3);
+	clks[IMX6SL_CLK_IPG]               = imx_clk_divider("ipg",               "ahb",               base + 0x14, 8,  2);
+	clks[IMX6SL_CLK_CSI_PODF]          = imx_clk_divider("csi_podf",          "csi_sel",           base + 0x3c, 11, 3);
+	clks[IMX6SL_CLK_LCDIF_AXI_PODF]    = imx_clk_divider("lcdif_axi_podf",    "lcdif_axi_sel",     base + 0x3c, 16, 3);
+	clks[IMX6SL_CLK_USDHC1_PODF]       = imx_clk_divider("usdhc1_podf",       "usdhc1_sel",        base + 0x24, 11, 3);
+	clks[IMX6SL_CLK_USDHC2_PODF]       = imx_clk_divider("usdhc2_podf",       "usdhc2_sel",        base + 0x24, 16, 3);
+	clks[IMX6SL_CLK_USDHC3_PODF]       = imx_clk_divider("usdhc3_podf",       "usdhc3_sel",        base + 0x24, 19, 3);
+	clks[IMX6SL_CLK_USDHC4_PODF]       = imx_clk_divider("usdhc4_podf",       "usdhc4_sel",        base + 0x24, 22, 3);
+	clks[IMX6SL_CLK_SSI1_PRED]         = imx_clk_divider("ssi1_pred",         "ssi1_sel",          base + 0x28, 6,  3);
+	clks[IMX6SL_CLK_SSI1_PODF]         = imx_clk_divider("ssi1_podf",         "ssi1_pred",         base + 0x28, 0,  6);
+	clks[IMX6SL_CLK_SSI2_PRED]         = imx_clk_divider("ssi2_pred",         "ssi2_sel",          base + 0x2c, 6,  3);
+	clks[IMX6SL_CLK_SSI2_PODF]         = imx_clk_divider("ssi2_podf",         "ssi2_pred",         base + 0x2c, 0,  6);
+	clks[IMX6SL_CLK_SSI3_PRED]         = imx_clk_divider("ssi3_pred",         "ssi3_sel",          base + 0x28, 22, 3);
+	clks[IMX6SL_CLK_SSI3_PODF]         = imx_clk_divider("ssi3_podf",         "ssi3_pred",         base + 0x28, 16, 6);
+	clks[IMX6SL_CLK_PERCLK]            = imx_clk_divider("perclk",            "perclk_sel",        base + 0x1c, 0,  6);
+	clks[IMX6SL_CLK_PXP_AXI_PODF]      = imx_clk_divider("pxp_axi_podf",      "pxp_axi_sel",       base + 0x34, 3,  3);
+	clks[IMX6SL_CLK_EPDC_AXI_PODF]     = imx_clk_divider("epdc_axi_podf",     "epdc_axi_sel",      base + 0x34, 12, 3);
+	clks[IMX6SL_CLK_GPU2D_OVG_PODF]    = imx_clk_divider("gpu2d_ovg_podf",    "gpu2d_ovg_sel",     base + 0x18, 26, 3);
+	clks[IMX6SL_CLK_GPU2D_PODF]        = imx_clk_divider("gpu2d_podf",        "gpu2d_sel",         base + 0x18, 29, 3);
+	clks[IMX6SL_CLK_LCDIF_PIX_PRED]    = imx_clk_divider("lcdif_pix_pred",    "lcdif_pix_sel",     base + 0x38, 3,  3);
+	clks[IMX6SL_CLK_EPDC_PIX_PRED]     = imx_clk_divider("epdc_pix_pred",     "epdc_pix_sel",      base + 0x38, 12, 3);
+	clks[IMX6SL_CLK_LCDIF_PIX_PODF]    = imx_clk_divider("lcdif_pix_podf",    "lcdif_pix_pred",    base + 0x1c, 20, 3);
+	clks[IMX6SL_CLK_EPDC_PIX_PODF]     = imx_clk_divider("epdc_pix_podf",     "epdc_pix_pred",     base + 0x18, 23, 3);
+	clks[IMX6SL_CLK_SPDIF0_PRED]       = imx_clk_divider("spdif0_pred",       "spdif0_sel",        base + 0x30, 25, 3);
+	clks[IMX6SL_CLK_SPDIF0_PODF]       = imx_clk_divider("spdif0_podf",       "spdif0_pred",       base + 0x30, 22, 3);
+	clks[IMX6SL_CLK_SPDIF1_PRED]       = imx_clk_divider("spdif1_pred",       "spdif1_sel",        base + 0x30, 12, 3);
+	clks[IMX6SL_CLK_SPDIF1_PODF]       = imx_clk_divider("spdif1_podf",       "spdif1_pred",       base + 0x30, 9,  3);
+	clks[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_divider("extern_audio_pred", "extern_audio_sel",  base + 0x28, 9,  3);
+	clks[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3);
+	clks[IMX6SL_CLK_ECSPI_ROOT]        = imx_clk_divider("ecspi_root",        "ecspi_sel",         base + 0x38, 19, 6);
+	clks[IMX6SL_CLK_UART_ROOT]         = imx_clk_divider("uart_root",         "uart_sel",          base + 0x24, 0,  6);
+
+	/*                                                name         parent_name reg       shift width busy: reg, shift */
+	clks[IMX6SL_CLK_AHB]       = imx_clk_busy_divider("ahb",       "periph",  base + 0x14, 10, 3,    base + 0x48, 1);
+	clks[IMX6SL_CLK_MMDC_ROOT] = imx_clk_busy_divider("mmdc",      "periph2", base + 0x14, 3,  3,    base + 0x48, 2);
+	clks[IMX6SL_CLK_ARM]       = imx_clk_busy_divider("arm",       "pll1_sw", base + 0x10, 0,  3,    base + 0x48, 16);
+
+	/*                                            name            parent_name          reg         shift */
+	clks[IMX6SL_CLK_ECSPI1]       = imx_clk_gate2("ecspi1",       "ecspi_root",        base + 0x6c, 0);
+	clks[IMX6SL_CLK_ECSPI2]       = imx_clk_gate2("ecspi2",       "ecspi_root",        base + 0x6c, 2);
+	clks[IMX6SL_CLK_ECSPI3]       = imx_clk_gate2("ecspi3",       "ecspi_root",        base + 0x6c, 4);
+	clks[IMX6SL_CLK_ECSPI4]       = imx_clk_gate2("ecspi4",       "ecspi_root",        base + 0x6c, 6);
+	clks[IMX6SL_CLK_EPIT1]        = imx_clk_gate2("epit1",        "perclk",            base + 0x6c, 12);
+	clks[IMX6SL_CLK_EPIT2]        = imx_clk_gate2("epit2",        "perclk",            base + 0x6c, 14);
+	clks[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16);
+	clks[IMX6SL_CLK_GPT]          = imx_clk_gate2("gpt",          "perclk",            base + 0x6c, 20);
+	clks[IMX6SL_CLK_GPT_SERIAL]   = imx_clk_gate2("gpt_serial",   "perclk",            base + 0x6c, 22);
+	clks[IMX6SL_CLK_GPU2D_OVG]    = imx_clk_gate2("gpu2d_ovg",    "gpu2d_ovg_podf",    base + 0x6c, 26);
+	clks[IMX6SL_CLK_I2C1]         = imx_clk_gate2("i2c1",         "perclk",            base + 0x70, 6);
+	clks[IMX6SL_CLK_I2C2]         = imx_clk_gate2("i2c2",         "perclk",            base + 0x70, 8);
+	clks[IMX6SL_CLK_I2C3]         = imx_clk_gate2("i2c3",         "perclk",            base + 0x70, 10);
+	clks[IMX6SL_CLK_OCOTP]        = imx_clk_gate2("ocotp",        "ipg",               base + 0x70, 12);
+	clks[IMX6SL_CLK_CSI]          = imx_clk_gate2("csi",          "csi_podf",          base + 0x74, 0);
+	clks[IMX6SL_CLK_PXP_AXI]      = imx_clk_gate2("pxp_axi",      "pxp_axi_podf",      base + 0x74, 2);
+	clks[IMX6SL_CLK_EPDC_AXI]     = imx_clk_gate2("epdc_axi",     "epdc_axi_podf",     base + 0x74, 4);
+	clks[IMX6SL_CLK_LCDIF_AXI]    = imx_clk_gate2("lcdif_axi",    "lcdif_axi_podf",    base + 0x74, 6);
+	clks[IMX6SL_CLK_LCDIF_PIX]    = imx_clk_gate2("lcdif_pix",    "lcdif_pix_podf",    base + 0x74, 8);
+	clks[IMX6SL_CLK_EPDC_PIX]     = imx_clk_gate2("epdc_pix",     "epdc_pix_podf",     base + 0x74, 10);
+	clks[IMX6SL_CLK_OCRAM]        = imx_clk_gate2("ocram",        "ocram_podf",        base + 0x74, 28);
+	clks[IMX6SL_CLK_PWM1]         = imx_clk_gate2("pwm1",         "perclk",            base + 0x78, 16);
+	clks[IMX6SL_CLK_PWM2]         = imx_clk_gate2("pwm2",         "perclk",            base + 0x78, 18);
+	clks[IMX6SL_CLK_PWM3]         = imx_clk_gate2("pwm3",         "perclk",            base + 0x78, 20);
+	clks[IMX6SL_CLK_PWM4]         = imx_clk_gate2("pwm4",         "perclk",            base + 0x78, 22);
+	clks[IMX6SL_CLK_SDMA]         = imx_clk_gate2("sdma",         "ipg",               base + 0x7c, 6);
+	clks[IMX6SL_CLK_SPDIF]        = imx_clk_gate2("spdif",        "spdif0_podf",       base + 0x7c, 14);
+	clks[IMX6SL_CLK_SSI1]         = imx_clk_gate2("ssi1",         "ssi1_podf",         base + 0x7c, 18);
+	clks[IMX6SL_CLK_SSI2]         = imx_clk_gate2("ssi2",         "ssi2_podf",         base + 0x7c, 20);
+	clks[IMX6SL_CLK_SSI3]         = imx_clk_gate2("ssi3",         "ssi3_podf",         base + 0x7c, 22);
+	clks[IMX6SL_CLK_UART]         = imx_clk_gate2("uart",         "ipg",               base + 0x7c, 24);
+	clks[IMX6SL_CLK_UART_SERIAL]  = imx_clk_gate2("uart_serial",  "uart_root",         base + 0x7c, 26);
+	clks[IMX6SL_CLK_USBOH3]       = imx_clk_gate2("usboh3",       "ipg",               base + 0x80, 0);
+	clks[IMX6SL_CLK_USDHC1]       = imx_clk_gate2("usdhc1",       "usdhc1_podf",       base + 0x80, 2);
+	clks[IMX6SL_CLK_USDHC2]       = imx_clk_gate2("usdhc2",       "usdhc2_podf",       base + 0x80, 4);
+	clks[IMX6SL_CLK_USDHC3]       = imx_clk_gate2("usdhc3",       "usdhc3_podf",       base + 0x80, 6);
+	clks[IMX6SL_CLK_USDHC4]       = imx_clk_gate2("usdhc4",       "usdhc4_podf",       base + 0x80, 8);
+
+	for (i = 0; i < ARRAY_SIZE(clks); i++)
+		if (IS_ERR(clks[i]))
+			pr_err("i.MX6SL clk %d: register failed with %ld\n",
+				i, PTR_ERR(clks[i]));
+
+	clk_data.clks = clks;
+	clk_data.clk_num = ARRAY_SIZE(clks);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
+	clk_register_clkdev(clks[IMX6SL_CLK_GPT], "ipg", "imx-gpt.0");
+	clk_register_clkdev(clks[IMX6SL_CLK_GPT_SERIAL], "per", "imx-gpt.0");
+
+	if (IS_ENABLED(CONFIG_USB_MXS_PHY)) {
+		clk_prepare_enable(clks[IMX6SL_CLK_USBPHY1_GATE]);
+		clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]);
+	}
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-gpt");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+	irq = irq_of_parse_and_map(np, 0);
+	mxc_timer_init(base, irq);
+
+	return 0;
+}
diff --git a/include/dt-bindings/clock/imx6sl-clock.h b/include/dt-bindings/clock/imx6sl-clock.h
new file mode 100644
index 0000000..7fcdf90
--- /dev/null
+++ b/include/dt-bindings/clock/imx6sl-clock.h
@@ -0,0 +1,148 @@ 
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_IMX6SL_H
+#define __DT_BINDINGS_CLOCK_IMX6SL_H
+
+#define IMX6SL_CLK_DUMMY		0
+#define IMX6SL_CLK_CKIL			1
+#define IMX6SL_CLK_OSC			2
+#define IMX6SL_CLK_PLL1_SYS		3
+#define IMX6SL_CLK_PLL2_BUS		4
+#define IMX6SL_CLK_PLL3_USB_OTG		5
+#define IMX6SL_CLK_PLL4_AUDIO		6
+#define IMX6SL_CLK_PLL5_VIDEO		7
+#define IMX6SL_CLK_PLL6_ENET		8
+#define IMX6SL_CLK_PLL7_USB_HOST	9
+#define IMX6SL_CLK_USBPHY1		10
+#define IMX6SL_CLK_USBPHY2		11
+#define IMX6SL_CLK_USBPHY1_GATE		12
+#define IMX6SL_CLK_USBPHY2_GATE		13
+#define IMX6SL_CLK_PLL4_POST_DIV	14
+#define IMX6SL_CLK_PLL5_POST_DIV	15
+#define IMX6SL_CLK_PLL5_VIDEO_DIV	16
+#define IMX6SL_CLK_ENET_REF		17
+#define IMX6SL_CLK_PLL2_PFD0		18
+#define IMX6SL_CLK_PLL2_PFD1		19
+#define IMX6SL_CLK_PLL2_PFD2		20
+#define IMX6SL_CLK_PLL3_PFD0		21
+#define IMX6SL_CLK_PLL3_PFD1		22
+#define IMX6SL_CLK_PLL3_PFD2		23
+#define IMX6SL_CLK_PLL3_PFD3		24
+#define IMX6SL_CLK_PLL2_198M		25
+#define IMX6SL_CLK_PLL3_120M		26
+#define IMX6SL_CLK_PLL3_80M		27
+#define IMX6SL_CLK_PLL3_60M		28
+#define IMX6SL_CLK_STEP			29
+#define IMX6SL_CLK_PLL1_SW		30
+#define IMX6SL_CLK_OCRAM_ALT_SEL	31
+#define IMX6SL_CLK_OCRAM_SEL		32
+#define IMX6SL_CLK_PRE_PERIPH2_SEL	33
+#define IMX6SL_CLK_PRE_PERIPH_SEL	34
+#define IMX6SL_CLK_PERIPH2_CLK2_SEL	35
+#define IMX6SL_CLK_PERIPH_CLK2_SEL	36
+#define IMX6SL_CLK_CSI_SEL		37
+#define IMX6SL_CLK_LCDIF_AXI_SEL	38
+#define IMX6SL_CLK_USDHC1_SEL		39
+#define IMX6SL_CLK_USDHC2_SEL		40
+#define IMX6SL_CLK_USDHC3_SEL		41
+#define IMX6SL_CLK_USDHC4_SEL		42
+#define IMX6SL_CLK_SSI1_SEL		43
+#define IMX6SL_CLK_SSI2_SEL		44
+#define IMX6SL_CLK_SSI3_SEL		45
+#define IMX6SL_CLK_PERCLK_SEL		46
+#define IMX6SL_CLK_PXP_AXI_SEL		47
+#define IMX6SL_CLK_EPDC_AXI_SEL		48
+#define IMX6SL_CLK_GPU2D_OVG_SEL	49
+#define IMX6SL_CLK_GPU2D_SEL		50
+#define IMX6SL_CLK_LCDIF_PIX_SEL	51
+#define IMX6SL_CLK_EPDC_PIX_SEL		52
+#define IMX6SL_CLK_SPDIF0_SEL		53
+#define IMX6SL_CLK_SPDIF1_SEL		54
+#define IMX6SL_CLK_EXTERN_AUDIO_SEL	55
+#define IMX6SL_CLK_ECSPI_SEL		56
+#define IMX6SL_CLK_UART_SEL		57
+#define IMX6SL_CLK_PERIPH		58
+#define IMX6SL_CLK_PERIPH2		59
+#define IMX6SL_CLK_OCRAM_PODF		60
+#define IMX6SL_CLK_PERIPH_CLK2_PODF	61
+#define IMX6SL_CLK_PERIPH2_CLK2_PODF	62
+#define IMX6SL_CLK_IPG			63
+#define IMX6SL_CLK_CSI_PODF		64
+#define IMX6SL_CLK_LCDIF_AXI_PODF	65
+#define IMX6SL_CLK_USDHC1_PODF		66
+#define IMX6SL_CLK_USDHC2_PODF		67
+#define IMX6SL_CLK_USDHC3_PODF		68
+#define IMX6SL_CLK_USDHC4_PODF		69
+#define IMX6SL_CLK_SSI1_PRED		70
+#define IMX6SL_CLK_SSI1_PODF		71
+#define IMX6SL_CLK_SSI2_PRED		72
+#define IMX6SL_CLK_SSI2_PODF		73
+#define IMX6SL_CLK_SSI3_PRED		74
+#define IMX6SL_CLK_SSI3_PODF		75
+#define IMX6SL_CLK_PERCLK		76
+#define IMX6SL_CLK_PXP_AXI_PODF		77
+#define IMX6SL_CLK_EPDC_AXI_PODF	78
+#define IMX6SL_CLK_GPU2D_OVG_PODF	79
+#define IMX6SL_CLK_GPU2D_PODF		80
+#define IMX6SL_CLK_LCDIF_PIX_PRED	81
+#define IMX6SL_CLK_EPDC_PIX_PRED	82
+#define IMX6SL_CLK_LCDIF_PIX_PODF	83
+#define IMX6SL_CLK_EPDC_PIX_PODF	84
+#define IMX6SL_CLK_SPDIF0_PRED		85
+#define IMX6SL_CLK_SPDIF0_PODF		86
+#define IMX6SL_CLK_SPDIF1_PRED		87
+#define IMX6SL_CLK_SPDIF1_PODF		88
+#define IMX6SL_CLK_EXTERN_AUDIO_PRED	89
+#define IMX6SL_CLK_EXTERN_AUDIO_PODF	90
+#define IMX6SL_CLK_ECSPI_ROOT		91
+#define IMX6SL_CLK_UART_ROOT		92
+#define IMX6SL_CLK_AHB			93
+#define IMX6SL_CLK_MMDC_ROOT		94
+#define IMX6SL_CLK_ARM			95
+#define IMX6SL_CLK_ECSPI1		96
+#define IMX6SL_CLK_ECSPI2		97
+#define IMX6SL_CLK_ECSPI3		98
+#define IMX6SL_CLK_ECSPI4		99
+#define IMX6SL_CLK_EPIT1		100
+#define IMX6SL_CLK_EPIT2		101
+#define IMX6SL_CLK_EXTERN_AUDIO		102
+#define IMX6SL_CLK_GPT			103
+#define IMX6SL_CLK_GPT_SERIAL		104
+#define IMX6SL_CLK_GPU2D_OVG		105
+#define IMX6SL_CLK_I2C1			106
+#define IMX6SL_CLK_I2C2			107
+#define IMX6SL_CLK_I2C3			108
+#define IMX6SL_CLK_OCOTP		109
+#define IMX6SL_CLK_CSI			110
+#define IMX6SL_CLK_PXP_AXI		111
+#define IMX6SL_CLK_EPDC_AXI		112
+#define IMX6SL_CLK_LCDIF_AXI		113
+#define IMX6SL_CLK_LCDIF_PIX		114
+#define IMX6SL_CLK_EPDC_PIX		115
+#define IMX6SL_CLK_OCRAM		116
+#define IMX6SL_CLK_PWM1			117
+#define IMX6SL_CLK_PWM2			118
+#define IMX6SL_CLK_PWM3			119
+#define IMX6SL_CLK_PWM4			120
+#define IMX6SL_CLK_SDMA			121
+#define IMX6SL_CLK_SPDIF		122
+#define IMX6SL_CLK_SSI1			123
+#define IMX6SL_CLK_SSI2			124
+#define IMX6SL_CLK_SSI3			125
+#define IMX6SL_CLK_UART			126
+#define IMX6SL_CLK_UART_SERIAL		127
+#define IMX6SL_CLK_USBOH3		128
+#define IMX6SL_CLK_USDHC1		129
+#define IMX6SL_CLK_USDHC2		130
+#define IMX6SL_CLK_USDHC3		131
+#define IMX6SL_CLK_USDHC4		132
+#define IMX6SL_CLK_CLK_END		133
+
+#endif /* __DT_BINDINGS_CLOCK_IMX6SL_H */