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@@ -49,3 +49,62 @@ static const char *std_sel[] = {"ppll", "arm"};
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static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"};
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enum mx35_clks {
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+ ckih, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg,
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+ arm_per_div, ahb_per_div, ipg_per, uart_sel, uart_div, esdhc_sel,
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+ esdhc1_div, esdhc2_div, esdhc3_div, spdif_sel, spdif_div_pre,
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+ spdif_div_post, ssi_sel, ssi1_div_pre, ssi1_div_post, ssi2_div_pre,
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+ ssi2_div_post, usb_sel, usb_div, nfc_div, asrc_gate, pata_gate,
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+ audmux_gate, can1_gate, can2_gate, cspi1_gate, cspi2_gate, ect_gate,
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+ edio_gate, emi_gate, epit1_gate, epit2_gate, esai_gate, esdhc1_gate,
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+ esdhc2_gate, esdhc3_gate, fec_gate, gpio1_gate, gpio2_gate, gpio3_gate,
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+ gpt_gate, i2c1_gate, i2c2_gate, i2c3_gate, iomuxc_gate, ipu_gate,
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+ kpp_gate, mlb_gate, mshc_gate, owire_gate, pwm_gate, rngc_gate,
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+ rtc_gate, rtic_gate, scc_gate, sdma_gate, spba_gate, spdif_gate,
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+ ssi1_gate, ssi2_gate, uart1_gate, uart2_gate, uart3_gate, usbotg_gate,
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+ wdog_gate, max_gate, admux_gate, csi_gate, csi_div, csi_sel, iim_gate,
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+ gpu2d_gate, clk_max
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+};
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+
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+static struct clk *clk[clk_max];
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+
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+int __init mx35_clocks_init()
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+{
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+ void __iomem *base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR);
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+ u32 pdr0, consumer_sel, hsp_sel;
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+ struct arm_ahb_div *aad;
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+ unsigned char *hsp_div;
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+ int i;
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+
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+ pdr0 = __raw_readl(base + MXC_CCM_PDR0);
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+ consumer_sel = (pdr0 >> 16) & 0xf;
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+ aad = &clk_consumer[consumer_sel];
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+ if (!aad->arm) {
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+ pr_err("i.MX35 clk: illegal consumer mux selection 0x%x\n", consumer_sel);
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+ /*
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+ * We are basically stuck. Continue with a default entry and hope we
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+ * get far enough to actually show the above message
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+ */
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+ aad = &clk_consumer[0];
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+ }
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+
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+ clk[ckih] = imx_clk_fixed("ckih", 24000000);
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+ clk[mpll] = imx_clk_pllv1("mpll", "ckih", base + MX35_CCM_MPCTL);
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+ clk[ppll] = imx_clk_pllv1("ppll", "ckih", base + MX35_CCM_PPCTL);
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+
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+ clk[mpll] = imx_clk_fixed_factor("mpll_075", "mpll", 3, 4);
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+
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+ if (aad->sel)
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+ clk[arm] = imx_clk_fixed_factor("arm", "mpll_075", 1, aad->arm);
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+ else
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+ clk[arm] = imx_clk_fixed_factor("arm", "mpll", 1, aad->arm);
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+
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+ if (clk_get_rate(clk[arm]) > 400000000)
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+ hsp_div = hsp_div_532;
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+ else
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+ hsp_div = hsp_div_400;
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+
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+ hsp_sel = (pdr0 >> 20) & 0x3;
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+ if (!hsp_div[hsp_sel]) {
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+ pr_err("i.MX35 clk: illegal hsp clk selection 0x%x\n", hsp_sel);
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+ hsp_sel = 0;
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+ }
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吉超博