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810c0ca879
On imx6qdl, the ENET RMII and PTP clock can come from either internal ANATOP/CCM or external clock source through pad GPIO_16. But in case of the external clock source, bit IOMUXC_GPR1[21] needs to be cleared. The patch adds the support for systems that use an external clock source and distinguishes above two cases by checking if the PTP clock specified in device tree is the one coming from the internal ANATOP/CCM. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
490 lines
32 KiB
C
490 lines
32 KiB
C
/*
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* Copyright 2011-2013 Freescale Semiconductor, Inc.
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* Copyright 2011 Linaro Ltd.
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/clk.h>
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#include <linux/clkdev.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include "clk.h"
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#include "common.h"
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#include "hardware.h"
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static const char *step_sels[] = { "osc", "pll2_pfd2_396m", };
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static const char *pll1_sw_sels[] = { "pll1_sys", "step", };
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static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
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static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", };
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static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", };
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static const char *periph_sels[] = { "periph_pre", "periph_clk2", };
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static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", };
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static const char *axi_sels[] = { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", };
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static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
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static const char *gpu_axi_sels[] = { "axi", "ahb", };
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static const char *gpu2d_core_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
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static const char *gpu3d_core_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
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static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll3_pfd0_720m", };
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static const char *ipu_sels[] = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
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static const char *ldb_di_sels[] = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
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static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
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static const char *ipu1_di0_sels[] = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
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static const char *ipu1_di1_sels[] = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
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static const char *ipu2_di0_sels[] = { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
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static const char *ipu2_di1_sels[] = { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
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static const char *hsi_tx_sels[] = { "pll3_120m", "pll2_pfd2_396m", };
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static const char *pcie_axi_sels[] = { "axi", "ahb", };
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static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio_div", };
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static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", };
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static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", };
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static const char *emi_sels[] = { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", };
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static const char *emi_slow_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", };
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static const char *vdo_axi_sels[] = { "axi", "ahb", };
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static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", };
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static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div",
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"dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
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"ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio_div", };
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static const char *cko2_sels[] = {
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"mmdc_ch0_axi", "mmdc_ch1_axi", "usdhc4", "usdhc1",
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"gpu2d_axi", "dummy", "ecspi_root", "gpu3d_axi",
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"usdhc3", "dummy", "arm", "ipu1",
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"ipu2", "vdo_axi", "osc", "gpu2d_core",
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"gpu3d_core", "usdhc2", "ssi1", "ssi2",
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"ssi3", "gpu3d_shader", "vpu_axi", "can_root",
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"ldb_di0", "ldb_di1", "esai", "eim_slow",
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"uart_serial", "spdif", "asrc", "hsi_tx",
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};
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static const char *cko_sels[] = { "cko1", "cko2", };
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static const char *lvds_sels[] = {
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"dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
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"pll4_audio", "pll5_video", "pll8_mlb", "enet_ref",
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"pcie_ref", "sata_ref",
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};
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enum mx6q_clks {
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dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
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pll3_pfd0_720m, pll3_pfd1_540m, pll3_pfd2_508m, pll3_pfd3_454m,
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pll2_198m, pll3_120m, pll3_80m, pll3_60m, twd, step, pll1_sw,
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periph_pre, periph2_pre, periph_clk2_sel, periph2_clk2_sel, axi_sel,
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esai_sel, asrc_sel, spdif_sel, gpu2d_axi, gpu3d_axi, gpu2d_core_sel,
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gpu3d_core_sel, gpu3d_shader_sel, ipu1_sel, ipu2_sel, ldb_di0_sel,
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ldb_di1_sel, ipu1_di0_pre_sel, ipu1_di1_pre_sel, ipu2_di0_pre_sel,
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ipu2_di1_pre_sel, ipu1_di0_sel, ipu1_di1_sel, ipu2_di0_sel,
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ipu2_di1_sel, hsi_tx_sel, pcie_axi_sel, ssi1_sel, ssi2_sel, ssi3_sel,
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usdhc1_sel, usdhc2_sel, usdhc3_sel, usdhc4_sel, enfc_sel, emi_sel,
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emi_slow_sel, vdo_axi_sel, vpu_axi_sel, cko1_sel, periph, periph2,
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periph_clk2, periph2_clk2, ipg, ipg_per, esai_pred, esai_podf,
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asrc_pred, asrc_podf, spdif_pred, spdif_podf, can_root, ecspi_root,
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gpu2d_core_podf, gpu3d_core_podf, gpu3d_shader, ipu1_podf, ipu2_podf,
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ldb_di0_podf, ldb_di1_podf, ipu1_di0_pre, ipu1_di1_pre, ipu2_di0_pre,
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ipu2_di1_pre, hsi_tx_podf, ssi1_pred, ssi1_podf, ssi2_pred, ssi2_podf,
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ssi3_pred, ssi3_podf, uart_serial_podf, usdhc1_podf, usdhc2_podf,
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usdhc3_podf, usdhc4_podf, enfc_pred, enfc_podf, emi_podf,
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emi_slow_podf, vpu_axi_podf, cko1_podf, axi, mmdc_ch0_axi_podf,
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mmdc_ch1_axi_podf, arm, ahb, apbh_dma, asrc, can1_ipg, can1_serial,
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can2_ipg, can2_serial, ecspi1, ecspi2, ecspi3, ecspi4, ecspi5, enet,
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esai, gpt_ipg, gpt_ipg_per, gpu2d_core, gpu3d_core, hdmi_iahb,
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hdmi_isfr, i2c1, i2c2, i2c3, iim, enfc, ipu1, ipu1_di0, ipu1_di1, ipu2,
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ipu2_di0, ldb_di0, ldb_di1, ipu2_di1, hsi_tx, mlb, mmdc_ch0_axi,
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mmdc_ch1_axi, ocram, openvg_axi, pcie_axi, pwm1, pwm2, pwm3, pwm4, per1_bch,
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gpmi_bch_apb, gpmi_bch, gpmi_io, gpmi_apb, sata, sdma, spba, ssi1,
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ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3,
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usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg,
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pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg,
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ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
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sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
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usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow,
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spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div,
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lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max
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};
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static struct clk *clk[clk_max];
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static struct clk_onecell_data clk_data;
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static enum mx6q_clks const clks_init_on[] __initconst = {
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mmdc_ch0_axi, rom, arm,
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};
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static struct clk_div_table clk_enet_ref_table[] = {
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{ .val = 0, .div = 20, },
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{ .val = 1, .div = 10, },
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{ .val = 2, .div = 5, },
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{ .val = 3, .div = 4, },
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{ /* sentinel */ }
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};
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static struct clk_div_table post_div_table[] = {
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{ .val = 2, .div = 1, },
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{ .val = 1, .div = 2, },
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{ .val = 0, .div = 4, },
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{ /* sentinel */ }
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};
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static struct clk_div_table video_div_table[] = {
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{ .val = 0, .div = 1, },
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{ .val = 1, .div = 2, },
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{ .val = 2, .div = 1, },
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{ .val = 3, .div = 4, },
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{ /* sentinel */ }
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};
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static void __init imx6q_clocks_init(struct device_node *ccm_node)
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{
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struct device_node *np;
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void __iomem *base;
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int i, irq;
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int ret;
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clk[dummy] = imx_clk_fixed("dummy", 0);
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clk[ckil] = imx_obtain_fixed_clock("ckil", 0);
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clk[ckih] = imx_obtain_fixed_clock("ckih1", 0);
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clk[osc] = imx_obtain_fixed_clock("osc", 0);
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np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
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base = of_iomap(np, 0);
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WARN_ON(!base);
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/* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
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if (cpu_is_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) {
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post_div_table[1].div = 1;
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post_div_table[2].div = 1;
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video_div_table[1].div = 1;
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video_div_table[2].div = 1;
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};
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/* type name parent_name base div_mask */
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clk[pll1_sys] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f);
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clk[pll2_bus] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1);
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clk[pll3_usb_otg] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3_usb_otg", "osc", base + 0x10, 0x3);
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clk[pll4_audio] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4_audio", "osc", base + 0x70, 0x7f);
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clk[pll5_video] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "osc", base + 0xa0, 0x7f);
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clk[pll6_enet] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6_enet", "osc", base + 0xe0, 0x3);
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clk[pll7_usb_host] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7_usb_host","osc", base + 0x20, 0x3);
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/*
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* Bit 20 is the reserved and read-only bit, we do this only for:
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* - Do nothing for usbphy clk_enable/disable
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* - Keep refcount when do usbphy clk_enable/disable, in that case,
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* the clk framework may need to enable/disable usbphy's parent
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*/
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clk[usbphy1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20);
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clk[usbphy2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20);
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/*
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* usbphy*_gate needs to be on after system boots up, and software
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* never needs to control it anymore.
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*/
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clk[usbphy1_gate] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6);
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clk[usbphy2_gate] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6);
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clk[sata_ref] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 5);
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clk[pcie_ref] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 4);
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clk[sata_ref_100m] = imx_clk_gate("sata_ref_100m", "sata_ref", base + 0xe0, 20);
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clk[pcie_ref_125m] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19);
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clk[enet_ref] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0,
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base + 0xe0, 0, 2, 0, clk_enet_ref_table,
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&imx_ccm_lock);
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clk[lvds1_sel] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
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clk[lvds2_sel] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
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/*
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* lvds1_gate and lvds2_gate are pseudo-gates. Both can be
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* independently configured as clock inputs or outputs. We treat
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* the "output_enable" bit as a gate, even though it's really just
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* enabling clock output.
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*/
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clk[lvds1_gate] = imx_clk_gate("lvds1_gate", "dummy", base + 0x160, 10);
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clk[lvds2_gate] = imx_clk_gate("lvds2_gate", "dummy", base + 0x160, 11);
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/* name parent_name reg idx */
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clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0);
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clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1);
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clk[pll2_pfd2_396m] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus", base + 0x100, 2);
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clk[pll3_pfd0_720m] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0, 0);
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clk[pll3_pfd1_540m] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0, 1);
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clk[pll3_pfd2_508m] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0, 2);
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clk[pll3_pfd3_454m] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0, 3);
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/* name parent_name mult div */
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clk[pll2_198m] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2);
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clk[pll3_120m] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4);
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clk[pll3_80m] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6);
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clk[pll3_60m] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8);
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clk[twd] = imx_clk_fixed_factor("twd", "arm", 1, 2);
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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);
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clk[pll4_audio_div] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock);
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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);
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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);
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np = ccm_node;
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base = of_iomap(np, 0);
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WARN_ON(!base);
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imx6q_pm_set_ccm_base(base);
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/* name reg shift width parent_names num_parents */
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clk[step] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels));
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clk[pll1_sw] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels));
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clk[periph_pre] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels));
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clk[periph2_pre] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels));
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clk[periph_clk2_sel] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
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clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
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clk[axi_sel] = imx_clk_mux("axi_sel", base + 0x14, 6, 2, axi_sels, ARRAY_SIZE(axi_sels));
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clk[esai_sel] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels));
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clk[asrc_sel] = imx_clk_mux("asrc_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels));
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clk[spdif_sel] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels));
|
|
clk[gpu2d_axi] = imx_clk_mux("gpu2d_axi", base + 0x18, 0, 1, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels));
|
|
clk[gpu3d_axi] = imx_clk_mux("gpu3d_axi", base + 0x18, 1, 1, gpu_axi_sels, ARRAY_SIZE(gpu_axi_sels));
|
|
clk[gpu2d_core_sel] = imx_clk_mux("gpu2d_core_sel", base + 0x18, 16, 2, gpu2d_core_sels, ARRAY_SIZE(gpu2d_core_sels));
|
|
clk[gpu3d_core_sel] = imx_clk_mux("gpu3d_core_sel", base + 0x18, 4, 2, gpu3d_core_sels, ARRAY_SIZE(gpu3d_core_sels));
|
|
clk[gpu3d_shader_sel] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8, 2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels));
|
|
clk[ipu1_sel] = imx_clk_mux("ipu1_sel", base + 0x3c, 9, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
|
|
clk[ipu2_sel] = imx_clk_mux("ipu2_sel", base + 0x3c, 14, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
|
|
clk[ldb_di0_sel] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
|
|
clk[ldb_di1_sel] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
|
|
clk[ipu1_di0_pre_sel] = imx_clk_mux("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
|
|
clk[ipu1_di1_pre_sel] = imx_clk_mux("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
|
|
clk[ipu2_di0_pre_sel] = imx_clk_mux("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
|
|
clk[ipu2_di1_pre_sel] = imx_clk_mux("ipu2_di1_pre_sel", base + 0x38, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
|
|
clk[ipu1_di0_sel] = imx_clk_mux("ipu1_di0_sel", base + 0x34, 0, 3, ipu1_di0_sels, ARRAY_SIZE(ipu1_di0_sels));
|
|
clk[ipu1_di1_sel] = imx_clk_mux("ipu1_di1_sel", base + 0x34, 9, 3, ipu1_di1_sels, ARRAY_SIZE(ipu1_di1_sels));
|
|
clk[ipu2_di0_sel] = imx_clk_mux("ipu2_di0_sel", base + 0x38, 0, 3, ipu2_di0_sels, ARRAY_SIZE(ipu2_di0_sels));
|
|
clk[ipu2_di1_sel] = imx_clk_mux("ipu2_di1_sel", base + 0x38, 9, 3, ipu2_di1_sels, ARRAY_SIZE(ipu2_di1_sels));
|
|
clk[hsi_tx_sel] = imx_clk_mux("hsi_tx_sel", base + 0x30, 28, 1, hsi_tx_sels, ARRAY_SIZE(hsi_tx_sels));
|
|
clk[pcie_axi_sel] = imx_clk_mux("pcie_axi_sel", base + 0x18, 10, 1, pcie_axi_sels, ARRAY_SIZE(pcie_axi_sels));
|
|
clk[ssi1_sel] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
|
|
clk[ssi2_sel] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
|
|
clk[ssi3_sel] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
|
|
clk[usdhc1_sel] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
|
|
clk[usdhc2_sel] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
|
|
clk[usdhc3_sel] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
|
|
clk[usdhc4_sel] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
|
|
clk[enfc_sel] = imx_clk_mux("enfc_sel", base + 0x2c, 16, 2, enfc_sels, ARRAY_SIZE(enfc_sels));
|
|
clk[emi_sel] = imx_clk_fixup_mux("emi_sel", base + 0x1c, 27, 2, emi_sels, ARRAY_SIZE(emi_sels), imx_cscmr1_fixup);
|
|
clk[emi_slow_sel] = imx_clk_fixup_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_slow_sels, ARRAY_SIZE(emi_slow_sels), imx_cscmr1_fixup);
|
|
clk[vdo_axi_sel] = imx_clk_mux("vdo_axi_sel", base + 0x18, 11, 1, vdo_axi_sels, ARRAY_SIZE(vdo_axi_sels));
|
|
clk[vpu_axi_sel] = imx_clk_mux("vpu_axi_sel", base + 0x18, 14, 2, vpu_axi_sels, ARRAY_SIZE(vpu_axi_sels));
|
|
clk[cko1_sel] = imx_clk_mux("cko1_sel", base + 0x60, 0, 4, cko1_sels, ARRAY_SIZE(cko1_sels));
|
|
clk[cko2_sel] = imx_clk_mux("cko2_sel", base + 0x60, 16, 5, cko2_sels, ARRAY_SIZE(cko2_sels));
|
|
clk[cko] = imx_clk_mux("cko", base + 0x60, 8, 1, cko_sels, ARRAY_SIZE(cko_sels));
|
|
|
|
/* name reg shift width busy: reg, shift parent_names num_parents */
|
|
clk[periph] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels));
|
|
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 */
|
|
clk[periph_clk2] = imx_clk_divider("periph_clk2", "periph_clk2_sel", base + 0x14, 27, 3);
|
|
clk[periph2_clk2] = imx_clk_divider("periph2_clk2", "periph2_clk2_sel", base + 0x14, 0, 3);
|
|
clk[ipg] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2);
|
|
clk[ipg_per] = imx_clk_fixup_divider("ipg_per", "ipg", base + 0x1c, 0, 6, imx_cscmr1_fixup);
|
|
clk[esai_pred] = imx_clk_divider("esai_pred", "esai_sel", base + 0x28, 9, 3);
|
|
clk[esai_podf] = imx_clk_divider("esai_podf", "esai_pred", base + 0x28, 25, 3);
|
|
clk[asrc_pred] = imx_clk_divider("asrc_pred", "asrc_sel", base + 0x30, 12, 3);
|
|
clk[asrc_podf] = imx_clk_divider("asrc_podf", "asrc_pred", base + 0x30, 9, 3);
|
|
clk[spdif_pred] = imx_clk_divider("spdif_pred", "spdif_sel", base + 0x30, 25, 3);
|
|
clk[spdif_podf] = imx_clk_divider("spdif_podf", "spdif_pred", base + 0x30, 22, 3);
|
|
clk[can_root] = imx_clk_divider("can_root", "pll3_60m", base + 0x20, 2, 6);
|
|
clk[ecspi_root] = imx_clk_divider("ecspi_root", "pll3_60m", base + 0x38, 19, 6);
|
|
clk[gpu2d_core_podf] = imx_clk_divider("gpu2d_core_podf", "gpu2d_core_sel", base + 0x18, 23, 3);
|
|
clk[gpu3d_core_podf] = imx_clk_divider("gpu3d_core_podf", "gpu3d_core_sel", base + 0x18, 26, 3);
|
|
clk[gpu3d_shader] = imx_clk_divider("gpu3d_shader", "gpu3d_shader_sel", base + 0x18, 29, 3);
|
|
clk[ipu1_podf] = imx_clk_divider("ipu1_podf", "ipu1_sel", base + 0x3c, 11, 3);
|
|
clk[ipu2_podf] = imx_clk_divider("ipu2_podf", "ipu2_sel", base + 0x3c, 16, 3);
|
|
clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
|
|
clk[ldb_di0_podf] = imx_clk_divider_flags("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1, 0);
|
|
clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
|
|
clk[ldb_di1_podf] = imx_clk_divider_flags("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1, 0);
|
|
clk[ipu1_di0_pre] = imx_clk_divider("ipu1_di0_pre", "ipu1_di0_pre_sel", base + 0x34, 3, 3);
|
|
clk[ipu1_di1_pre] = imx_clk_divider("ipu1_di1_pre", "ipu1_di1_pre_sel", base + 0x34, 12, 3);
|
|
clk[ipu2_di0_pre] = imx_clk_divider("ipu2_di0_pre", "ipu2_di0_pre_sel", base + 0x38, 3, 3);
|
|
clk[ipu2_di1_pre] = imx_clk_divider("ipu2_di1_pre", "ipu2_di1_pre_sel", base + 0x38, 12, 3);
|
|
clk[hsi_tx_podf] = imx_clk_divider("hsi_tx_podf", "hsi_tx_sel", base + 0x30, 29, 3);
|
|
clk[ssi1_pred] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3);
|
|
clk[ssi1_podf] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6);
|
|
clk[ssi2_pred] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3);
|
|
clk[ssi2_podf] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6);
|
|
clk[ssi3_pred] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3);
|
|
clk[ssi3_podf] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6);
|
|
clk[uart_serial_podf] = imx_clk_divider("uart_serial_podf", "pll3_80m", base + 0x24, 0, 6);
|
|
clk[usdhc1_podf] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3);
|
|
clk[usdhc2_podf] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3);
|
|
clk[usdhc3_podf] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3);
|
|
clk[usdhc4_podf] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3);
|
|
clk[enfc_pred] = imx_clk_divider("enfc_pred", "enfc_sel", base + 0x2c, 18, 3);
|
|
clk[enfc_podf] = imx_clk_divider("enfc_podf", "enfc_pred", base + 0x2c, 21, 6);
|
|
clk[emi_podf] = imx_clk_fixup_divider("emi_podf", "emi_sel", base + 0x1c, 20, 3, imx_cscmr1_fixup);
|
|
clk[emi_slow_podf] = imx_clk_fixup_divider("emi_slow_podf", "emi_slow_sel", base + 0x1c, 23, 3, imx_cscmr1_fixup);
|
|
clk[vpu_axi_podf] = imx_clk_divider("vpu_axi_podf", "vpu_axi_sel", base + 0x24, 25, 3);
|
|
clk[cko1_podf] = imx_clk_divider("cko1_podf", "cko1_sel", base + 0x60, 4, 3);
|
|
clk[cko2_podf] = imx_clk_divider("cko2_podf", "cko2_sel", base + 0x60, 21, 3);
|
|
|
|
/* name parent_name reg shift width busy: reg, shift */
|
|
clk[axi] = imx_clk_busy_divider("axi", "axi_sel", base + 0x14, 16, 3, base + 0x48, 0);
|
|
clk[mmdc_ch0_axi_podf] = imx_clk_busy_divider("mmdc_ch0_axi_podf", "periph", base + 0x14, 19, 3, base + 0x48, 4);
|
|
clk[mmdc_ch1_axi_podf] = imx_clk_busy_divider("mmdc_ch1_axi_podf", "periph2", base + 0x14, 3, 3, base + 0x48, 2);
|
|
clk[arm] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16);
|
|
clk[ahb] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1);
|
|
|
|
/* name parent_name reg shift */
|
|
clk[apbh_dma] = imx_clk_gate2("apbh_dma", "usdhc3", base + 0x68, 4);
|
|
clk[asrc] = imx_clk_gate2("asrc", "asrc_podf", base + 0x68, 6);
|
|
clk[can1_ipg] = imx_clk_gate2("can1_ipg", "ipg", base + 0x68, 14);
|
|
clk[can1_serial] = imx_clk_gate2("can1_serial", "can_root", base + 0x68, 16);
|
|
clk[can2_ipg] = imx_clk_gate2("can2_ipg", "ipg", base + 0x68, 18);
|
|
clk[can2_serial] = imx_clk_gate2("can2_serial", "can_root", base + 0x68, 20);
|
|
clk[ecspi1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0);
|
|
clk[ecspi2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2);
|
|
clk[ecspi3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4);
|
|
clk[ecspi4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6);
|
|
clk[ecspi5] = imx_clk_gate2("ecspi5", "ecspi_root", base + 0x6c, 8);
|
|
clk[enet] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10);
|
|
clk[esai] = imx_clk_gate2("esai", "esai_podf", base + 0x6c, 16);
|
|
clk[gpt_ipg] = imx_clk_gate2("gpt_ipg", "ipg", base + 0x6c, 20);
|
|
clk[gpt_ipg_per] = imx_clk_gate2("gpt_ipg_per", "ipg_per", base + 0x6c, 22);
|
|
if (cpu_is_imx6dl())
|
|
/*
|
|
* The multiplexer and divider of imx6q clock gpu3d_shader get
|
|
* redefined/reused as gpu2d_core_sel and gpu2d_core_podf on imx6dl.
|
|
*/
|
|
clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu3d_shader", base + 0x6c, 24);
|
|
else
|
|
clk[gpu2d_core] = imx_clk_gate2("gpu2d_core", "gpu2d_core_podf", base + 0x6c, 24);
|
|
clk[gpu3d_core] = imx_clk_gate2("gpu3d_core", "gpu3d_core_podf", base + 0x6c, 26);
|
|
clk[hdmi_iahb] = imx_clk_gate2("hdmi_iahb", "ahb", base + 0x70, 0);
|
|
clk[hdmi_isfr] = imx_clk_gate2("hdmi_isfr", "pll3_pfd1_540m", base + 0x70, 4);
|
|
clk[i2c1] = imx_clk_gate2("i2c1", "ipg_per", base + 0x70, 6);
|
|
clk[i2c2] = imx_clk_gate2("i2c2", "ipg_per", base + 0x70, 8);
|
|
clk[i2c3] = imx_clk_gate2("i2c3", "ipg_per", base + 0x70, 10);
|
|
clk[iim] = imx_clk_gate2("iim", "ipg", base + 0x70, 12);
|
|
clk[enfc] = imx_clk_gate2("enfc", "enfc_podf", base + 0x70, 14);
|
|
clk[vdoa] = imx_clk_gate2("vdoa", "vdo_axi", base + 0x70, 26);
|
|
clk[ipu1] = imx_clk_gate2("ipu1", "ipu1_podf", base + 0x74, 0);
|
|
clk[ipu1_di0] = imx_clk_gate2("ipu1_di0", "ipu1_di0_sel", base + 0x74, 2);
|
|
clk[ipu1_di1] = imx_clk_gate2("ipu1_di1", "ipu1_di1_sel", base + 0x74, 4);
|
|
clk[ipu2] = imx_clk_gate2("ipu2", "ipu2_podf", base + 0x74, 6);
|
|
clk[ipu2_di0] = imx_clk_gate2("ipu2_di0", "ipu2_di0_sel", base + 0x74, 8);
|
|
clk[ldb_di0] = imx_clk_gate2("ldb_di0", "ldb_di0_podf", base + 0x74, 12);
|
|
clk[ldb_di1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14);
|
|
clk[ipu2_di1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10);
|
|
clk[hsi_tx] = imx_clk_gate2("hsi_tx", "hsi_tx_podf", base + 0x74, 16);
|
|
if (cpu_is_imx6dl())
|
|
/*
|
|
* The multiplexer and divider of the imx6q clock gpu2d get
|
|
* redefined/reused as mlb_sys_sel and mlb_sys_clk_podf on imx6dl.
|
|
*/
|
|
clk[mlb] = imx_clk_gate2("mlb", "gpu2d_core_podf", base + 0x74, 18);
|
|
else
|
|
clk[mlb] = imx_clk_gate2("mlb", "axi", base + 0x74, 18);
|
|
clk[mmdc_ch0_axi] = imx_clk_gate2("mmdc_ch0_axi", "mmdc_ch0_axi_podf", base + 0x74, 20);
|
|
clk[mmdc_ch1_axi] = imx_clk_gate2("mmdc_ch1_axi", "mmdc_ch1_axi_podf", base + 0x74, 22);
|
|
clk[ocram] = imx_clk_gate2("ocram", "ahb", base + 0x74, 28);
|
|
clk[openvg_axi] = imx_clk_gate2("openvg_axi", "axi", base + 0x74, 30);
|
|
clk[pcie_axi] = imx_clk_gate2("pcie_axi", "pcie_axi_sel", base + 0x78, 0);
|
|
clk[per1_bch] = imx_clk_gate2("per1_bch", "usdhc3", base + 0x78, 12);
|
|
clk[pwm1] = imx_clk_gate2("pwm1", "ipg_per", base + 0x78, 16);
|
|
clk[pwm2] = imx_clk_gate2("pwm2", "ipg_per", base + 0x78, 18);
|
|
clk[pwm3] = imx_clk_gate2("pwm3", "ipg_per", base + 0x78, 20);
|
|
clk[pwm4] = imx_clk_gate2("pwm4", "ipg_per", base + 0x78, 22);
|
|
clk[gpmi_bch_apb] = imx_clk_gate2("gpmi_bch_apb", "usdhc3", base + 0x78, 24);
|
|
clk[gpmi_bch] = imx_clk_gate2("gpmi_bch", "usdhc4", base + 0x78, 26);
|
|
clk[gpmi_io] = imx_clk_gate2("gpmi_io", "enfc", base + 0x78, 28);
|
|
clk[gpmi_apb] = imx_clk_gate2("gpmi_apb", "usdhc3", base + 0x78, 30);
|
|
clk[rom] = imx_clk_gate2("rom", "ahb", base + 0x7c, 0);
|
|
clk[sata] = imx_clk_gate2("sata", "ipg", base + 0x7c, 4);
|
|
clk[sdma] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6);
|
|
clk[spba] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
|
|
clk[spdif] = imx_clk_gate2("spdif", "spdif_podf", base + 0x7c, 14);
|
|
clk[ssi1_ipg] = imx_clk_gate2("ssi1_ipg", "ipg", base + 0x7c, 18);
|
|
clk[ssi2_ipg] = imx_clk_gate2("ssi2_ipg", "ipg", base + 0x7c, 20);
|
|
clk[ssi3_ipg] = imx_clk_gate2("ssi3_ipg", "ipg", base + 0x7c, 22);
|
|
clk[uart_ipg] = imx_clk_gate2("uart_ipg", "ipg", base + 0x7c, 24);
|
|
clk[uart_serial] = imx_clk_gate2("uart_serial", "uart_serial_podf", base + 0x7c, 26);
|
|
clk[usboh3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0);
|
|
clk[usdhc1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2);
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|
clk[usdhc2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4);
|
|
clk[usdhc3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6);
|
|
clk[usdhc4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8);
|
|
clk[eim_slow] = imx_clk_gate2("eim_slow", "emi_slow_podf", base + 0x80, 10);
|
|
clk[vdo_axi] = imx_clk_gate2("vdo_axi", "vdo_axi_sel", base + 0x80, 12);
|
|
clk[vpu_axi] = imx_clk_gate2("vpu_axi", "vpu_axi_podf", base + 0x80, 14);
|
|
clk[cko1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7);
|
|
clk[cko2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(clk); i++)
|
|
if (IS_ERR(clk[i]))
|
|
pr_err("i.MX6q clk %d: register failed with %ld\n",
|
|
i, PTR_ERR(clk[i]));
|
|
|
|
clk_data.clks = clk;
|
|
clk_data.clk_num = ARRAY_SIZE(clk);
|
|
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
|
|
|
|
clk_register_clkdev(clk[gpt_ipg], "ipg", "imx-gpt.0");
|
|
clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
|
|
clk_register_clkdev(clk[enet_ref], "enet_ref", NULL);
|
|
|
|
if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) ||
|
|
cpu_is_imx6dl()) {
|
|
clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
|
|
clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]);
|
|
}
|
|
|
|
/*
|
|
* The gpmi needs 100MHz frequency in the EDO/Sync mode,
|
|
* We can not get the 100MHz from the pll2_pfd0_352m.
|
|
* So choose pll2_pfd2_396m as enfc_sel's parent.
|
|
*/
|
|
clk_set_parent(clk[enfc_sel], clk[pll2_pfd2_396m]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
|
|
clk_prepare_enable(clk[clks_init_on[i]]);
|
|
|
|
if (IS_ENABLED(CONFIG_USB_MXS_PHY)) {
|
|
clk_prepare_enable(clk[usbphy1_gate]);
|
|
clk_prepare_enable(clk[usbphy2_gate]);
|
|
}
|
|
|
|
/*
|
|
* Let's initially set up CLKO with OSC24M, since this configuration
|
|
* is widely used by imx6q board designs to clock audio codec.
|
|
*/
|
|
ret = clk_set_parent(clk[cko2_sel], clk[osc]);
|
|
if (!ret)
|
|
ret = clk_set_parent(clk[cko], clk[cko2]);
|
|
if (ret)
|
|
pr_warn("failed to set up CLKO: %d\n", ret);
|
|
|
|
/* Audio-related clocks configuration */
|
|
clk_set_parent(clk[spdif_sel], clk[pll3_pfd3_454m]);
|
|
|
|
/* All existing boards with PCIe use LVDS1 */
|
|
if (IS_ENABLED(CONFIG_PCI_IMX6))
|
|
clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
|
|
|
|
/* Set initial power mode */
|
|
imx6q_set_lpm(WAIT_CLOCKED);
|
|
|
|
np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
|
|
base = of_iomap(np, 0);
|
|
WARN_ON(!base);
|
|
irq = irq_of_parse_and_map(np, 0);
|
|
mxc_timer_init(base, irq);
|
|
}
|
|
CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);
|