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

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...

1 files changed, 278 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
new file mode 100644
index 00000000000..a9e60bf7dd7
--- /dev/null
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 2012 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ *
+ * 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/mm.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/err.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+
+#include "crmregs-imx3.h"
+#include "clk.h"
+
+struct arm_ahb_div {
+	unsigned char arm, ahb, sel;
+};
+
+static struct arm_ahb_div clk_consumer[] = {
+	{ .arm = 1, .ahb = 4, .sel = 0},
+	{ .arm = 1, .ahb = 3, .sel = 1},
+	{ .arm = 2, .ahb = 2, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 4, .ahb = 1, .sel = 0},
+	{ .arm = 1, .ahb = 5, .sel = 0},
+	{ .arm = 1, .ahb = 8, .sel = 0},
+	{ .arm = 1, .ahb = 6, .sel = 1},
+	{ .arm = 2, .ahb = 4, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+	{ .arm = 4, .ahb = 2, .sel = 0},
+	{ .arm = 0, .ahb = 0, .sel = 0},
+};
+
+static char hsp_div_532[] = { 4, 8, 3, 0 };
+static char hsp_div_400[] = { 3, 6, 3, 0 };
+
+static const char *std_sel[] = {"ppll", "arm"};
+static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"};
+
+enum mx35_clks {
+	ckih, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg,
+	arm_per_div, ahb_per_div, ipg_per, uart_sel, uart_div, esdhc_sel,
+	esdhc1_div, esdhc2_div, esdhc3_div, spdif_sel, spdif_div_pre,
+	spdif_div_post, ssi_sel, ssi1_div_pre, ssi1_div_post, ssi2_div_pre,
+	ssi2_div_post, usb_sel, usb_div, nfc_div, asrc_gate, pata_gate,
+	audmux_gate, can1_gate, can2_gate, cspi1_gate, cspi2_gate, ect_gate,
+	edio_gate, emi_gate, epit1_gate, epit2_gate, esai_gate, esdhc1_gate,
+	esdhc2_gate, esdhc3_gate, fec_gate, gpio1_gate, gpio2_gate, gpio3_gate,
+	gpt_gate, i2c1_gate, i2c2_gate, i2c3_gate, iomuxc_gate, ipu_gate,
+	kpp_gate, mlb_gate, mshc_gate, owire_gate, pwm_gate, rngc_gate,
+	rtc_gate, rtic_gate, scc_gate, sdma_gate, spba_gate, spdif_gate,
+	ssi1_gate, ssi2_gate, uart1_gate, uart2_gate, uart3_gate, usbotg_gate,
+	wdog_gate, max_gate, admux_gate, csi_gate, iim_gate, gpu2d_gate,
+	clk_max
+};
+
+static struct clk *clk[clk_max];
+
+int __init mx35_clocks_init()
+{
+	void __iomem *base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR);
+	u32 pdr0, consumer_sel, hsp_sel;
+	struct arm_ahb_div *aad;
+	unsigned char *hsp_div;
+	int i;
+
+	pdr0 = __raw_readl(base + MXC_CCM_PDR0);
+	consumer_sel = (pdr0 >> 16) & 0xf;
+	aad = &clk_consumer[consumer_sel];
+	if (!aad->arm) {
+		pr_err("i.MX35 clk: illegal consumer mux selection 0x%x\n", consumer_sel);
+		/*
+		 * We are basically stuck. Continue with a default entry and hope we
+		 * get far enough to actually show the above message
+		 */
+		aad = &clk_consumer[0];
+	}
+
+	clk[ckih] = imx_clk_fixed("ckih", 24000000);
+	clk[mpll] = imx_clk_pllv1("mpll", "ckih", base + MX35_CCM_MPCTL);
+	clk[ppll] = imx_clk_pllv1("ppll", "ckih", base + MX35_CCM_PPCTL);
+
+	clk[mpll] = imx_clk_fixed_factor("mpll_075", "mpll", 3, 4);
+
+	if (aad->sel)
+		clk[arm] = imx_clk_fixed_factor("arm", "mpll_075", 1, aad->arm);
+	else
+		clk[arm] = imx_clk_fixed_factor("arm", "mpll", 1, aad->arm);
+
+	if (clk_get_rate(clk[arm]) > 400000000)
+		hsp_div = hsp_div_532;
+	else
+		hsp_div = hsp_div_400;
+
+	hsp_sel = (pdr0 >> 20) & 0x3;
+	if (!hsp_div[hsp_sel]) {
+		pr_err("i.MX35 clk: illegal hsp clk selection 0x%x\n", hsp_sel);
+		hsp_sel = 0;
+	}
+
+	clk[hsp] = imx_clk_fixed_factor("hsp", "arm", 1, hsp_div[hsp_sel]);
+
+	clk[ahb] = imx_clk_fixed_factor("ahb", "arm", 1, aad->ahb);
+	clk[ipg] = imx_clk_fixed_factor("ipg", "ahb", 1, 2);
+
+	clk[arm_per_div] = imx_clk_divider("arm_per_div", "arm", base + MX35_CCM_PDR4, 16, 6);
+	clk[ahb_per_div] = imx_clk_divider("ahb_per_div", "ahb", base + MXC_CCM_PDR0, 12, 3);
+	clk[ipg_per] = imx_clk_mux("ipg_per", base + MXC_CCM_PDR0, 26, 1, ipg_per_sel, ARRAY_SIZE(ipg_per_sel));
+
+	clk[uart_sel] = imx_clk_mux("uart_sel", base + MX35_CCM_PDR3, 14, 1, std_sel, ARRAY_SIZE(std_sel));
+	clk[uart_div] = imx_clk_divider("uart_div", "uart_sel", base + MX35_CCM_PDR4, 10, 6);
+
+	clk[esdhc_sel] = imx_clk_mux("esdhc_sel", base + MX35_CCM_PDR4, 9, 1, std_sel, ARRAY_SIZE(std_sel));
+	clk[esdhc1_div] = imx_clk_divider("esdhc1_div", "esdhc_sel", base + MX35_CCM_PDR3, 0, 6);
+	clk[esdhc2_div] = imx_clk_divider("esdhc2_div", "esdhc_sel", base + MX35_CCM_PDR3, 8, 6);
+	clk[esdhc3_div] = imx_clk_divider("esdhc3_div", "esdhc_sel", base + MX35_CCM_PDR3, 16, 6);
+
+	clk[spdif_sel] = imx_clk_mux("spdif_sel", base + MX35_CCM_PDR3, 22, 1, std_sel, ARRAY_SIZE(std_sel));
+	clk[spdif_div_pre] = imx_clk_divider("spdif_div_pre", "spdif_sel", base + MX35_CCM_PDR3, 29, 3); /* divide by 1 not allowed */ 
+	clk[spdif_div_post] = imx_clk_divider("spdif_div_post", "spdif_div_pre", base + MX35_CCM_PDR3, 23, 6);
+
+	clk[ssi_sel] = imx_clk_mux("ssi_sel", base + MX35_CCM_PDR2, 6, 1, std_sel, ARRAY_SIZE(std_sel));
+	clk[ssi1_div_pre] = imx_clk_divider("ssi1_div_pre", "ssi_sel", base + MX35_CCM_PDR2, 24, 3);
+	clk[ssi1_div_post] = imx_clk_divider("ssi1_div_post", "ssi1_div_pre", base + MX35_CCM_PDR2, 0, 6);
+	clk[ssi2_div_pre] = imx_clk_divider("ssi2_div_pre", "ssi_sel", base + MX35_CCM_PDR2, 27, 3);
+	clk[ssi2_div_post] = imx_clk_divider("ssi2_div_post", "ssi2_div_pre", base + MX35_CCM_PDR2, 8, 6);
+
+	clk[usb_sel] = imx_clk_mux("usb_sel", base + MX35_CCM_PDR4, 9, 1, std_sel, ARRAY_SIZE(std_sel));
+	clk[usb_div] = imx_clk_divider("usb_div", "usb_sel", base + MX35_CCM_PDR4, 22, 6);
+
+	clk[nfc_div] = imx_clk_divider("nfc_div", "ahb", base + MX35_CCM_PDR4, 28, 4);
+
+	clk[asrc_gate] = imx_clk_gate2("asrc_gate", "ipg", base + MX35_CCM_CGR0,  0);
+	clk[pata_gate] = imx_clk_gate2("pata_gate", "ipg", base + MX35_CCM_CGR0,  2);
+	clk[audmux_gate] = imx_clk_gate2("audmux_gate", "ipg", base + MX35_CCM_CGR0,  4);
+	clk[can1_gate] = imx_clk_gate2("can1_gate", "ipg", base + MX35_CCM_CGR0,  6);
+	clk[can2_gate] = imx_clk_gate2("can2_gate", "ipg", base + MX35_CCM_CGR0,  8);
+	clk[cspi1_gate] = imx_clk_gate2("cspi1_gate", "ipg", base + MX35_CCM_CGR0, 10);
+	clk[cspi2_gate] = imx_clk_gate2("cspi2_gate", "ipg", base + MX35_CCM_CGR0, 12);
+	clk[ect_gate] = imx_clk_gate2("ect_gate", "ipg", base + MX35_CCM_CGR0, 14);
+	clk[edio_gate] = imx_clk_gate2("edio_gate",   "ipg", base + MX35_CCM_CGR0, 16);
+	clk[emi_gate] = imx_clk_gate2("emi_gate", "ipg", base + MX35_CCM_CGR0, 18);
+	clk[epit1_gate] = imx_clk_gate2("epit1_gate", "ipg", base + MX35_CCM_CGR0, 20);
+	clk[epit2_gate] = imx_clk_gate2("epit2_gate", "ipg", base + MX35_CCM_CGR0, 22);
+	clk[esai_gate] = imx_clk_gate2("esai_gate",   "ipg", base + MX35_CCM_CGR0, 24);
+	clk[esdhc1_gate] = imx_clk_gate2("esdhc1_gate", "esdhc1_div", base + MX35_CCM_CGR0, 26);
+	clk[esdhc2_gate] = imx_clk_gate2("esdhc2_gate", "esdhc2_div", base + MX35_CCM_CGR0, 28);
+	clk[esdhc3_gate] = imx_clk_gate2("esdhc3_gate", "esdhc3_div", base + MX35_CCM_CGR0, 30);
+
+	clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", base + MX35_CCM_CGR1,  0);
+	clk[gpio1_gate] = imx_clk_gate2("gpio1_gate", "ipg", base + MX35_CCM_CGR1,  2);
+	clk[gpio2_gate] = imx_clk_gate2("gpio2_gate", "ipg", base + MX35_CCM_CGR1,  4);
+	clk[gpio3_gate] = imx_clk_gate2("gpio3_gate", "ipg", base + MX35_CCM_CGR1,  6);
+	clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", base + MX35_CCM_CGR1,  8);
+	clk[i2c1_gate] = imx_clk_gate2("i2c1_gate", "ipg_per", base + MX35_CCM_CGR1, 10);
+	clk[i2c2_gate] = imx_clk_gate2("i2c2_gate", "ipg_per", base + MX35_CCM_CGR1, 12);
+	clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "ipg_per", base + MX35_CCM_CGR1, 14);
+	clk[iomuxc_gate] = imx_clk_gate2("iomuxc_gate", "ipg", base + MX35_CCM_CGR1, 16);
+	clk[ipu_gate] = imx_clk_gate2("ipu_gate", "hsp", base + MX35_CCM_CGR1, 18);
+	clk[kpp_gate] = imx_clk_gate2("kpp_gate", "ipg", base + MX35_CCM_CGR1, 20);
+	clk[mlb_gate] = imx_clk_gate2("mlb_gate", "ahb", base + MX35_CCM_CGR1, 22);
+	clk[mshc_gate] = imx_clk_gate2("mshc_gate", "dummy", base + MX35_CCM_CGR1, 24);
+	clk[owire_gate] = imx_clk_gate2("owire_gate", "ipg_per", base + MX35_CCM_CGR1, 26);
+	clk[pwm_gate] = imx_clk_gate2("pwm_gate", "ipg_per", base + MX35_CCM_CGR1, 28);
+	clk[rngc_gate] = imx_clk_gate2("rngc_gate", "ipg", base + MX35_CCM_CGR1, 30);
+
+	clk[rtc_gate] = imx_clk_gate2("rtc_gate", "ipg", base + MX35_CCM_CGR2,  0);
+	clk[rtic_gate] = imx_clk_gate2("rtic_gate", "ahb", base + MX35_CCM_CGR2,  2);
+	clk[scc_gate] = imx_clk_gate2("scc_gate", "ipg", base + MX35_CCM_CGR2,  4);
+	clk[sdma_gate] = imx_clk_gate2("sdma_gate", "ahb", base + MX35_CCM_CGR2,  6);
+	clk[spba_gate] = imx_clk_gate2("spba_gate", "ipg", base + MX35_CCM_CGR2,  8);
+	clk[spdif_gate] = imx_clk_gate2("spdif_gate", "spdif_div_post", base + MX35_CCM_CGR2, 10);
+	clk[ssi1_gate] = imx_clk_gate2("ssi1_gate", "ssi1_div_post", base + MX35_CCM_CGR2, 12);
+	clk[ssi2_gate] = imx_clk_gate2("ssi2_gate", "ssi2_div_post", base + MX35_CCM_CGR2, 14);
+	clk[uart1_gate] = imx_clk_gate2("uart1_gate", "uart_div", base + MX35_CCM_CGR2, 16);
+	clk[uart2_gate] = imx_clk_gate2("uart2_gate", "uart_div", base + MX35_CCM_CGR2, 18);
+	clk[uart3_gate] = imx_clk_gate2("uart3_gate", "uart_div", base + MX35_CCM_CGR2, 20);
+	clk[usbotg_gate] = imx_clk_gate2("usbotg_gate", "ahb", base + MX35_CCM_CGR2, 22);
+	clk[wdog_gate] = imx_clk_gate2("wdog_gate", "ipg", base + MX35_CCM_CGR2, 24);
+	clk[max_gate] = imx_clk_gate2("max_gate", "dummy", base + MX35_CCM_CGR2, 26);
+	clk[admux_gate] = imx_clk_gate2("admux_gate", "ipg", base + MX35_CCM_CGR2, 30);
+
+	clk[csi_gate] = imx_clk_gate2("csi_gate", "ipg", base + MX35_CCM_CGR3,  0);
+	clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", base + MX35_CCM_CGR3,  2);
+	clk[gpu2d_gate] = imx_clk_gate2("gpu2d_gate", "ahb", base + MX35_CCM_CGR3,  4);
+
+	for (i = 0; i < ARRAY_SIZE(clk); i++)
+		if (IS_ERR(clk[i]))
+			pr_err("i.MX35 clk %d: register failed with %ld\n",
+				i, PTR_ERR(clk[i]));
+
+
+	clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
+	clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
+	clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
+	clk_register_clkdev(clk[cspi1_gate], "per", "imx35-cspi.0");
+	clk_register_clkdev(clk[cspi1_gate], "ipg", "imx35-cspi.0");
+	clk_register_clkdev(clk[cspi2_gate], "per", "imx35-cspi.1");
+	clk_register_clkdev(clk[cspi2_gate], "ipg", "imx35-cspi.1");
+	clk_register_clkdev(clk[epit1_gate], NULL, "imx-epit.0");
+	clk_register_clkdev(clk[epit2_gate], NULL, "imx-epit.1");
+	clk_register_clkdev(clk[esdhc1_gate], "per", "sdhci-esdhc-imx35.0");
+	clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.0");
+	clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.0");
+	clk_register_clkdev(clk[esdhc2_gate], "per", "sdhci-esdhc-imx35.1");
+	clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.1");
+	clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.1");
+	clk_register_clkdev(clk[esdhc3_gate], "per", "sdhci-esdhc-imx35.2");
+	clk_register_clkdev(clk[ipg], "ipg", "sdhci-esdhc-imx35.2");
+	clk_register_clkdev(clk[ahb], "ahb", "sdhci-esdhc-imx35.2");
+	/* i.mx35 has the i.mx27 type fec */
+	clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0");
+	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
+	clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
+	clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0");
+	clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1");
+	clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2");
+	clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core");
+	clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
+	clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1");
+	clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma");
+	clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.0");
+	clk_register_clkdev(clk[ssi1_div_post], "per", "imx-ssi.0");
+	clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.1");
+	clk_register_clkdev(clk[ssi2_div_post], "per", "imx-ssi.1");
+	/* i.mx35 has the i.mx21 type uart */
+	clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0");
+	clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0");
+	clk_register_clkdev(clk[uart2_gate], "per", "imx21-uart.1");
+	clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.1");
+	clk_register_clkdev(clk[uart3_gate], "per", "imx21-uart.2");
+	clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.2");
+	clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0");
+	clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0");
+	clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.0");
+	clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.1");
+	clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.1");
+	clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.1");
+	clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.2");
+	clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.2");
+	clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.2");
+	clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
+	clk_register_clkdev(clk[ipg], "ipg", "fsl-usb2-udc");
+	clk_register_clkdev(clk[usbotg_gate], "ahb", "fsl-usb2-udc");
+	clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
+	clk_register_clkdev(clk[nfc_div], NULL, "mxc_nand.0");
+
+	clk_prepare_enable(clk[spba_gate]);
+	clk_prepare_enable(clk[gpio1_gate]);
+	clk_prepare_enable(clk[gpio2_gate]);
+	clk_prepare_enable(clk[gpio3_gate]);
+	clk_prepare_enable(clk[iim_gate]);
+	clk_prepare_enable(clk[emi_gate]);
+
+	imx_print_silicon_rev("i.MX35", mx35_revision());
+
+#ifdef CONFIG_MXC_USE_EPIT
+	epit_timer_init(&epit1_clk,
+			MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1);
+#else
+	mxc_timer_init(NULL, MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR),
+			MX35_INT_GPT);
+#endif
+
+	return 0;
+}