]> Pileus Git - ~andy/linux/blobdiff - arch/arm/mach-imx/clk-imx6q.c
ARM: imx6: use common of_clk_init() call to initialize clocks
[~andy/linux] / arch / arm / mach-imx / clk-imx6q.c
index 151259003086e8d1f0db34015742ab307b3f986a..930a1a589c689c6f7599a6c89da44eb503462f3b 100644 (file)
@@ -177,17 +177,18 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 static const char *step_sels[] = { "osc", "pll2_pfd2_396m", };
 static const char *pll1_sw_sels[]      = { "pll1_sys", "step", };
 static const char *periph_pre_sels[]   = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
-static const char *periph_clk2_sels[]  = { "pll3_usb_otg", "osc", };
+static const char *periph_clk2_sels[]  = { "pll3_usb_otg", "osc", "osc", "dummy", };
+static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", };
 static const char *periph_sels[]       = { "periph_pre", "periph_clk2", };
 static const char *periph2_sels[]      = { "periph2_pre", "periph2_clk2", };
-static const char *axi_sels[]          = { "periph", "pll2_pfd2_396m", "pll3_pfd1_540m", };
+static const char *axi_sels[]          = { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", };
 static const char *audio_sels[]        = { "pll4_post_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
 static const char *gpu_axi_sels[]      = { "axi", "ahb", };
 static const char *gpu2d_core_sels[]   = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
 static const char *gpu3d_core_sels[]   = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
-static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd9_720m", };
+static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll3_pfd0_720m", };
 static const char *ipu_sels[]          = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
-static const char *ldb_di_sels[]       = { "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
+static const char *ldb_di_sels[]       = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
 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", };
 static const char *ipu1_di0_sels[]     = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
 static const char *ipu1_di1_sels[]     = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
@@ -237,7 +238,7 @@ enum mx6q_clks {
        pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg,
        ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
        sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
-       usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, clk_max
+       usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow, clk_max
 };
 
 static struct clk *clk[clk_max];
@@ -269,27 +270,16 @@ static struct clk_div_table video_div_table[] = {
        { }
 };
 
-int __init mx6q_clocks_init(void)
+static void __init imx6q_clocks_init(struct device_node *ccm_node)
 {
        struct device_node *np;
        void __iomem *base;
        int i, irq;
 
        clk[dummy] = imx_clk_fixed("dummy", 0);
-
-       /* retrieve the freqency of fixed clocks from device tree */
-       for_each_compatible_node(np, NULL, "fixed-clock") {
-               u32 rate;
-               if (of_property_read_u32(np, "clock-frequency", &rate))
-                       continue;
-
-               if (of_device_is_compatible(np, "fsl,imx-ckil"))
-                       clk[ckil] = imx_clk_fixed("ckil", rate);
-               else if (of_device_is_compatible(np, "fsl,imx-ckih1"))
-                       clk[ckih] = imx_clk_fixed("ckih", rate);
-               else if (of_device_is_compatible(np, "fsl,imx-osc"))
-                       clk[osc] = imx_clk_fixed("osc", rate);
-       }
+       clk[ckil] = imx_obtain_fixed_clock("ckil", 0);
+       clk[ckih] = imx_obtain_fixed_clock("ckih1", 0);
+       clk[osc] = imx_obtain_fixed_clock("osc", 0);
 
        np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
        base = of_iomap(np, 0);
@@ -311,7 +301,6 @@ int __init mx6q_clocks_init(void)
        clk[pll5_video]    = imx_clk_pllv3(IMX_PLLV3_AV,        "pll5_video",   "osc", base + 0xa0, 0x7f);
        clk[pll6_enet]     = imx_clk_pllv3(IMX_PLLV3_ENET,      "pll6_enet",    "osc", base + 0xe0, 0x3);
        clk[pll7_usb_host] = imx_clk_pllv3(IMX_PLLV3_USB,       "pll7_usb_host","osc", base + 0x20, 0x3);
-       clk[pll8_mlb]      = imx_clk_pllv3(IMX_PLLV3_MLB,       "pll8_mlb",     "osc", base + 0xd0, 0x0);
 
        /*
         * Bit 20 is the reserved and read-only bit, we do this only for:
@@ -359,7 +348,7 @@ int __init mx6q_clocks_init(void)
        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);
        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);
 
-       np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ccm");
+       np = ccm_node;
        base = of_iomap(np, 0);
        WARN_ON(!base);
        ccm_base = base;
@@ -369,8 +358,8 @@ int __init mx6q_clocks_init(void)
        clk[pll1_sw]          = imx_clk_mux("pll1_sw",          base + 0xc,  2,  1, pll1_sw_sels,      ARRAY_SIZE(pll1_sw_sels));
        clk[periph_pre]       = imx_clk_mux("periph_pre",       base + 0x18, 18, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
        clk[periph2_pre]      = imx_clk_mux("periph2_pre",      base + 0x18, 21, 2, periph_pre_sels,   ARRAY_SIZE(periph_pre_sels));
-       clk[periph_clk2_sel]  = imx_clk_mux("periph_clk2_sel",  base + 0x18, 12, 1, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
-       clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
+       clk[periph_clk2_sel]  = imx_clk_mux("periph_clk2_sel",  base + 0x18, 12, 2, periph_clk2_sels,  ARRAY_SIZE(periph_clk2_sels));
+       clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
        clk[axi_sel]          = imx_clk_mux("axi_sel",          base + 0x14, 6,  2, axi_sels,          ARRAY_SIZE(axi_sels));
        clk[esai_sel]         = imx_clk_mux("esai_sel",         base + 0x20, 19, 2, audio_sels,        ARRAY_SIZE(audio_sels));
        clk[asrc_sel]         = imx_clk_mux("asrc_sel",         base + 0x30, 7,  2, audio_sels,        ARRAY_SIZE(audio_sels));
@@ -480,7 +469,14 @@ int __init mx6q_clocks_init(void)
        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);
-       clk[gpu2d_core]   = imx_clk_gate2("gpu2d_core",    "gpu2d_core_podf",   base + 0x6c, 24);
+       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);
@@ -498,7 +494,14 @@ int __init mx6q_clocks_init(void)
        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);
-       clk[mlb]          = imx_clk_gate2("mlb",           "pll8_mlb",          base + 0x74, 18);
+       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);
@@ -527,6 +530,7 @@ int __init mx6q_clocks_init(void)
        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);
@@ -575,6 +579,5 @@ int __init mx6q_clocks_init(void)
        WARN_ON(!base);
        irq = irq_of_parse_and_map(np, 0);
        mxc_timer_init(base, irq);
-
-       return 0;
 }
+CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);