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

Pull ARM SoC device tree conversions and enablement from Olof Johansson:
 "Continued device tree conversion and enablement across a number of
  platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other
  smaller series as well.

  ux500 has seen continued conversion for platforms.  Several platforms
  have seen pinctrl-via-devicetree conversions for simpler
  multiplatform.  Tegra is adding data for new devices/drivers, and
  Exynos has a bunch of new bindings and devices added as well.

  So, pretty much the same progression in the right direction as the
  last few releases."

Fix up conflicts as per Olof.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (185 commits)
  ARM: ux500: Rename dbx500 cpufreq code to be more generic
  ARM: dts: add missing ux500 device trees
  ARM: ux500: Stop registering the PCM driver from platform code
  ARM: ux500: Move board specific GPIO info out to subordinate DTS files
  ARM: ux500: Disable the MMCI gpio-regulator by default
  ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
  ARM: Kirkwood: Add support LED of OpenBlocks A6
  ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
  ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
  ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
  ARM: kirkwood: Add support DT of second I2C bus
  ARM: kirkwood: Convert mplcec4 board to pinctrl
  ARM: Kirkwood: Convert km_kirkwood to pinctrl
  ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
  ARM: Kirkwood: Convert IX2-200 to pinctrl.
  ARM: Kirkwood: Convert lsxl boards to pinctrl.
  ARM: Kirkwood: Convert ib62x0 to pinctrl.
  ARM: Kirkwood: Convert GoFlex Net to pinctrl.
  ARM: Kirkwood: Convert dreamplug to pinctrl.
  ARM: Kirkwood: Convert dockstar to pinctrl.
  ...

9 files changed, 229 insertions, 26 deletions

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 4e24b8c77eb4..1ad0d76de8c7 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -272,6 +272,13 @@ config MACH_EUKREA_MBIMXSD25_BASEBOARD
 
 endchoice
 
+config MACH_IMX25_DT
+        bool "Support i.MX25 platforms from device tree"
+        select SOC_IMX25
+        help
+          Include support for Freescale i.MX25 based platforms
+          using the device tree for discovery
+
 comment "MX27 platforms:"
 
 config MACH_MX27ADS
@@ -831,7 +838,14 @@ config	SOC_IMX53
 
 config SOC_IMX6Q
         bool "i.MX6 Quad support"
+        select ARCH_HAS_CPUFREQ
+        select ARCH_HAS_OPP
         select ARM_CPU_SUSPEND if PM
+        select ARM_ERRATA_743622
+        select ARM_ERRATA_751472
+        select ARM_ERRATA_754322
+        select ARM_ERRATA_764369 if SMP
+        select ARM_ERRATA_775420
         select ARM_GIC
         select COMMON_CLK
         select CPU_V7
@@ -843,6 +857,10 @@ config SOC_IMX6Q
         select MFD_SYSCON
         select PINCTRL
         select PINCTRL_IMX6Q
+        select PL310_ERRATA_588369 if CACHE_PL310
+        select PL310_ERRATA_727915 if CACHE_PL310
+        select PL310_ERRATA_769419 if CACHE_PL310
+        select PM_OPP if PM
 
         help
           This enables support for Freescale i.MX6 Quad processor.
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index fe47b71469c9..0634b3152c24 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_MACH_MX21ADS) += mach-mx21ads.o
 obj-$(CONFIG_MACH_MX25_3DS) += mach-mx25_3ds.o
 obj-$(CONFIG_MACH_EUKREA_CPUIMX25SD) += mach-eukrea_cpuimx25.o
 obj-$(CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD) += eukrea_mbimxsd25-baseboard.o
+obj-$(CONFIG_MACH_IMX25_DT) += imx25-dt.o
 
 # i.MX27 based machines
 obj-$(CONFIG_MACH_MX27ADS) += mach-mx27ads.o
diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c
index bc885801cd68..b197aa73dc4b 100644
--- a/arch/arm/mach-imx/clk-imx25.c
+++ b/arch/arm/mach-imx/clk-imx25.c
@@ -23,6 +23,9 @@
 #include <linux/io.h>
 #include <linux/clkdev.h>
 #include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include "clk.h"
 #include "common.h"
@@ -55,6 +58,8 @@
 
 #define ccm(x)  (CRM_BASE + (x))
 
+static struct clk_onecell_data clk_data;
+
 static const char *cpu_sel_clks[] = { "mpll", "mpll_cpu_3_4", };
 static const char *per_sel_clks[] = { "ahb", "upll", };
 
@@ -64,24 +69,30 @@ enum mx25_clks {
         per7_sel, per8_sel, per9_sel, per10_sel, per11_sel, per12_sel,
         per13_sel, per14_sel, per15_sel, per0, per1, per2, per3, per4, per5,
         per6, per7, per8, per9, per10, per11, per12, per13, per14, per15,
-        csi_ipg_per, esdhc1_ipg_per, esdhc2_ipg_per, gpt_ipg_per, i2c_ipg_per,
-        lcdc_ipg_per, nfc_ipg_per, ssi1_ipg_per, ssi2_ipg_per, uart_ipg_per,
-        csi_ahb, esdhc1_ahb, esdhc2_ahb, fec_ahb, lcdc_ahb, sdma_ahb,
-        usbotg_ahb, can1_ipg, can2_ipg, csi_ipg, cspi1_ipg, cspi2_ipg,
-        cspi3_ipg, dryice_ipg, esdhc1_ipg, esdhc2_ipg, fec_ipg, iim_ipg,
-        kpp_ipg, lcdc_ipg, pwm1_ipg, pwm2_ipg, pwm3_ipg, pwm4_ipg, sdma_ipg,
-        ssi1_ipg, ssi2_ipg, tsc_ipg, uart1_ipg, uart2_ipg, uart3_ipg,
-        uart4_ipg, uart5_ipg, wdt_ipg, clk_max
+        csi_ipg_per, epit_ipg_per, esai_ipg_per, esdhc1_ipg_per, esdhc2_ipg_per,
+        gpt_ipg_per, i2c_ipg_per, lcdc_ipg_per, nfc_ipg_per, owire_ipg_per,
+        pwm_ipg_per, sim1_ipg_per, sim2_ipg_per, ssi1_ipg_per, ssi2_ipg_per,
+        uart_ipg_per, ata_ahb, reserved1, csi_ahb, emi_ahb, esai_ahb, esdhc1_ahb,
+        esdhc2_ahb, fec_ahb, lcdc_ahb, rtic_ahb, sdma_ahb, slcdc_ahb, usbotg_ahb,
+        reserved2, reserved3, reserved4, reserved5, can1_ipg, can2_ipg, csi_ipg,
+        cspi1_ipg, cspi2_ipg, cspi3_ipg, dryice_ipg, ect_ipg, epit1_ipg, epit2_ipg,
+        reserved6, esdhc1_ipg, esdhc2_ipg, fec_ipg, reserved7, reserved8, reserved9,
+        gpt1_ipg, gpt2_ipg, gpt3_ipg, gpt4_ipg, reserved10, reserved11, reserved12,
+        iim_ipg, reserved13, reserved14, kpp_ipg, lcdc_ipg, reserved15, pwm1_ipg,
+        pwm2_ipg, pwm3_ipg, pwm4_ipg, rngb_ipg, reserved16, scc_ipg, sdma_ipg,
+        sim1_ipg, sim2_ipg, slcdc_ipg, spba_ipg, ssi1_ipg, ssi2_ipg, tsc_ipg,
+        uart1_ipg, uart2_ipg, uart3_ipg, uart4_ipg, uart5_ipg, reserved17,
+        wdt_ipg, clk_max
 };
 
 static struct clk *clk[clk_max];
 
-int __init mx25_clocks_init(void)
+static int __init __mx25_clocks_init(unsigned long osc_rate)
 {
         int i;
 
         clk[dummy] = imx_clk_fixed("dummy", 0);
-        clk[osc] = imx_clk_fixed("osc", 24000000);
+        clk[osc] = imx_clk_fixed("osc", osc_rate);
         clk[mpll] = imx_clk_pllv1("mpll", "osc", ccm(CCM_MPCTL));
         clk[upll] = imx_clk_pllv1("upll", "osc", ccm(CCM_UPCTL));
         clk[mpll_cpu_3_4] = imx_clk_fixed_factor("mpll_cpu_3_4", "mpll", 3, 4);
@@ -123,22 +134,36 @@ int __init mx25_clocks_init(void)
         clk[per14] = imx_clk_divider("per14", "per14_sel", ccm(CCM_PCDR3), 16, 6);
         clk[per15] = imx_clk_divider("per15", "per15_sel", ccm(CCM_PCDR3), 24, 6);
         clk[csi_ipg_per] = imx_clk_gate("csi_ipg_per", "per0", ccm(CCM_CGCR0), 0);
+        clk[epit_ipg_per] = imx_clk_gate("epit_ipg_per", "per1", ccm(CCM_CGCR0),  1);
+        clk[esai_ipg_per] = imx_clk_gate("esai_ipg_per", "per2", ccm(CCM_CGCR0),  2);
         clk[esdhc1_ipg_per] = imx_clk_gate("esdhc1_ipg_per", "per3", ccm(CCM_CGCR0),  3);
         clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0),  4);
         clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0),  5);
         clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0),  6);
         clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0),  7);
         clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0),  8);
+        clk[owire_ipg_per] = imx_clk_gate("owire_ipg_per", "per9", ccm(CCM_CGCR0),  9);
+        clk[pwm_ipg_per] = imx_clk_gate("pwm_ipg_per", "per10", ccm(CCM_CGCR0),  10);
+        clk[sim1_ipg_per] = imx_clk_gate("sim1_ipg_per", "per11", ccm(CCM_CGCR0),  11);
+        clk[sim2_ipg_per] = imx_clk_gate("sim2_ipg_per", "per12", ccm(CCM_CGCR0),  12);
         clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13);
         clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14);
         clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15);
+        clk[ata_ahb] = imx_clk_gate("ata_ahb", "ahb", ccm(CCM_CGCR0), 16);
+        /* CCM_CGCR0(17): reserved */
         clk[csi_ahb] = imx_clk_gate("csi_ahb", "ahb", ccm(CCM_CGCR0), 18);
+        clk[emi_ahb] = imx_clk_gate("emi_ahb", "ahb", ccm(CCM_CGCR0), 19);
+        clk[esai_ahb] = imx_clk_gate("esai_ahb", "ahb", ccm(CCM_CGCR0), 20);
         clk[esdhc1_ahb] = imx_clk_gate("esdhc1_ahb", "ahb", ccm(CCM_CGCR0), 21);
         clk[esdhc2_ahb] = imx_clk_gate("esdhc2_ahb", "ahb", ccm(CCM_CGCR0), 22);
         clk[fec_ahb] = imx_clk_gate("fec_ahb", "ahb", ccm(CCM_CGCR0), 23);
         clk[lcdc_ahb] = imx_clk_gate("lcdc_ahb", "ahb", ccm(CCM_CGCR0), 24);
+        clk[rtic_ahb] = imx_clk_gate("rtic_ahb", "ahb", ccm(CCM_CGCR0), 25);
         clk[sdma_ahb] = imx_clk_gate("sdma_ahb", "ahb", ccm(CCM_CGCR0), 26);
+        clk[slcdc_ahb] = imx_clk_gate("slcdc_ahb", "ahb", ccm(CCM_CGCR0), 27);
         clk[usbotg_ahb] = imx_clk_gate("usbotg_ahb", "ahb", ccm(CCM_CGCR0), 28);
+        /* CCM_CGCR0(29-31): reserved */
+        /* CCM_CGCR1(0): reserved in datasheet, used as audmux in FSL kernel */
         clk[can1_ipg] = imx_clk_gate("can1_ipg", "ipg", ccm(CCM_CGCR1),  2);
         clk[can2_ipg] = imx_clk_gate("can2_ipg", "ipg", ccm(CCM_CGCR1),  3);
         clk[csi_ipg] = imx_clk_gate("csi_ipg", "ipg", ccm(CCM_CGCR1),  4);
@@ -146,17 +171,41 @@ int __init mx25_clocks_init(void)
         clk[cspi2_ipg] = imx_clk_gate("cspi2_ipg", "ipg", ccm(CCM_CGCR1),  6);
         clk[cspi3_ipg] = imx_clk_gate("cspi3_ipg", "ipg", ccm(CCM_CGCR1),  7);
         clk[dryice_ipg] = imx_clk_gate("dryice_ipg", "ipg", ccm(CCM_CGCR1),  8);
+        clk[ect_ipg] = imx_clk_gate("ect_ipg", "ipg", ccm(CCM_CGCR1),  9);
+        clk[epit1_ipg] = imx_clk_gate("epit1_ipg", "ipg", ccm(CCM_CGCR1),  10);
+        clk[epit2_ipg] = imx_clk_gate("epit2_ipg", "ipg", ccm(CCM_CGCR1),  11);
+        /* CCM_CGCR1(12): reserved in datasheet, used as esai in FSL kernel */
         clk[esdhc1_ipg] = imx_clk_gate("esdhc1_ipg", "ipg", ccm(CCM_CGCR1), 13);
         clk[esdhc2_ipg] = imx_clk_gate("esdhc2_ipg", "ipg", ccm(CCM_CGCR1), 14);
         clk[fec_ipg] = imx_clk_gate("fec_ipg", "ipg", ccm(CCM_CGCR1), 15);
+        /* CCM_CGCR1(16): reserved in datasheet, used as gpio1 in FSL kernel */
+        /* CCM_CGCR1(17): reserved in datasheet, used as gpio2 in FSL kernel */
+        /* CCM_CGCR1(18): reserved in datasheet, used as gpio3 in FSL kernel */
+        clk[gpt1_ipg] = imx_clk_gate("gpt1_ipg", "ipg", ccm(CCM_CGCR1), 19);
+        clk[gpt2_ipg] = imx_clk_gate("gpt2_ipg", "ipg", ccm(CCM_CGCR1), 20);
+        clk[gpt3_ipg] = imx_clk_gate("gpt3_ipg", "ipg", ccm(CCM_CGCR1), 21);
+        clk[gpt4_ipg] = imx_clk_gate("gpt4_ipg", "ipg", ccm(CCM_CGCR1), 22);
+        /* CCM_CGCR1(23): reserved in datasheet, used as i2c1 in FSL kernel */
+        /* CCM_CGCR1(24): reserved in datasheet, used as i2c2 in FSL kernel */
+        /* CCM_CGCR1(25): reserved in datasheet, used as i2c3 in FSL kernel */
         clk[iim_ipg] = imx_clk_gate("iim_ipg", "ipg", ccm(CCM_CGCR1), 26);
+        /* CCM_CGCR1(27): reserved in datasheet, used as iomuxc in FSL kernel */
+        /* CCM_CGCR1(28): reserved in datasheet, used as kpp in FSL kernel */
         clk[kpp_ipg] = imx_clk_gate("kpp_ipg", "ipg", ccm(CCM_CGCR1), 28);
         clk[lcdc_ipg] = imx_clk_gate("lcdc_ipg", "ipg", ccm(CCM_CGCR1), 29);
+        /* CCM_CGCR1(30): reserved in datasheet, used as owire in FSL kernel */
         clk[pwm1_ipg] = imx_clk_gate("pwm1_ipg", "ipg", ccm(CCM_CGCR1), 31);
         clk[pwm2_ipg] = imx_clk_gate("pwm2_ipg", "ipg", ccm(CCM_CGCR2),  0);
         clk[pwm3_ipg] = imx_clk_gate("pwm3_ipg", "ipg", ccm(CCM_CGCR2),  1);
         clk[pwm4_ipg] = imx_clk_gate("pwm4_ipg", "ipg", ccm(CCM_CGCR2),  2);
+        clk[rngb_ipg] = imx_clk_gate("rngb_ipg", "ipg", ccm(CCM_CGCR2),  3);
+        /* CCM_CGCR2(4): reserved in datasheet, used as rtic in FSL kernel */
+        clk[scc_ipg] = imx_clk_gate("scc_ipg", "ipg", ccm(CCM_CGCR2),  5);
         clk[sdma_ipg] = imx_clk_gate("sdma_ipg", "ipg", ccm(CCM_CGCR2),  6);
+        clk[sim1_ipg] = imx_clk_gate("sim1_ipg", "ipg", ccm(CCM_CGCR2),  7);
+        clk[sim2_ipg] = imx_clk_gate("sim2_ipg", "ipg", ccm(CCM_CGCR2),  8);
+        clk[slcdc_ipg] = imx_clk_gate("slcdc_ipg", "ipg", ccm(CCM_CGCR2),  9);
+        clk[spba_ipg] = imx_clk_gate("spba_ipg", "ipg", ccm(CCM_CGCR2),  10);
         clk[ssi1_ipg] = imx_clk_gate("ssi1_ipg", "ipg", ccm(CCM_CGCR2), 11);
         clk[ssi2_ipg] = imx_clk_gate("ssi2_ipg", "ipg", ccm(CCM_CGCR2), 12);
         clk[tsc_ipg] = imx_clk_gate("tsc_ipg", "ipg", ccm(CCM_CGCR2), 13);
@@ -165,6 +214,7 @@ int __init mx25_clocks_init(void)
         clk[uart3_ipg] = imx_clk_gate("uart3_ipg", "ipg", ccm(CCM_CGCR2), 16);
         clk[uart4_ipg] = imx_clk_gate("uart4_ipg", "ipg", ccm(CCM_CGCR2), 17);
         clk[uart5_ipg] = imx_clk_gate("uart5_ipg", "ipg", ccm(CCM_CGCR2), 18);
+        /* CCM_CGCR2(19): reserved in datasheet, but used as wdt in FSL kernel */
         clk[wdt_ipg] = imx_clk_gate("wdt_ipg", "ipg", ccm(CCM_CGCR2), 19);
 
         for (i = 0; i < ARRAY_SIZE(clk); i++)
@@ -172,6 +222,18 @@ int __init mx25_clocks_init(void)
                         pr_err("i.MX25 clk %d: register failed with %ld\n",
                                 i, PTR_ERR(clk[i]));
 
+        clk_prepare_enable(clk[emi_ahb]);
+
+        clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
+        clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
+
+        return 0;
+}
+
+int __init mx25_clocks_init(void)
+{
+        __mx25_clocks_init(24000000);
+
         /* i.mx25 has the i.mx21 type uart */
         clk_register_clkdev(clk[uart1_ipg], "ipg", "imx21-uart.0");
         clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.0");
@@ -183,8 +245,6 @@ int __init mx25_clocks_init(void)
         clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.3");
         clk_register_clkdev(clk[uart5_ipg], "ipg", "imx21-uart.4");
         clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.4");
-        clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
-        clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
         clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0");
         clk_register_clkdev(clk[usbotg_ahb], "ahb", "mxc-ehci.0");
         clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0");
@@ -242,5 +302,40 @@ int __init mx25_clocks_init(void)
         clk_register_clkdev(clk[iim_ipg], "iim", NULL);
 
         mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), MX25_INT_GPT1);
+
+        return 0;
+}
+
+int __init mx25_clocks_init_dt(void)
+{
+        struct device_node *np;
+        void __iomem *base;
+        int irq;
+        unsigned long osc_rate = 24000000;
+
+        /* 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-osc"))
+                        osc_rate = rate;
+        }
+
+        np = of_find_compatible_node(NULL, NULL, "fsl,imx25-ccm");
+        clk_data.clks = clk;
+        clk_data.clk_num = ARRAY_SIZE(clk);
+        of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
+        __mx25_clocks_init(osc_rate);
+
+        np = of_find_compatible_node(NULL, NULL, "fsl,imx25-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/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 448476958e7f..7f2c10c7413a 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -424,6 +424,7 @@ int __init mx6q_clocks_init(void)
         clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL);
         clk_register_clkdev(clk[ahb], "ahb", NULL);
         clk_register_clkdev(clk[cko1], "cko1", NULL);
+        clk_register_clkdev(clk[arm], NULL, "cpu0");
 
         /*
          * The gpmi needs 100MHz frequency in the EDO/Sync mode,
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index ef8db6b34841..7191ab4434e5 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -66,6 +66,7 @@ extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
                         unsigned long ckih1, unsigned long ckih2);
 extern int mx53_clocks_init(unsigned long ckil, unsigned long osc,
                         unsigned long ckih1, unsigned long ckih2);
+extern int mx25_clocks_init_dt(void);
 extern int mx27_clocks_init_dt(void);
 extern int mx31_clocks_init_dt(void);
 extern int mx51_clocks_init_dt(void);
diff --git a/arch/arm/mach-imx/imx25-dt.c b/arch/arm/mach-imx/imx25-dt.c
new file mode 100644
index 000000000000..e17dfbc42192
--- /dev/null
+++ b/arch/arm/mach-imx/imx25-dt.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012 Sascha Hauer, Pengutronix
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include "common.h"
+#include "mx25.h"
+
+static void __init imx25_dt_init(void)
+{
+        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static void __init imx25_timer_init(void)
+{
+        mx25_clocks_init_dt();
+}
+
+static struct sys_timer imx25_timer = {
+        .init = imx25_timer_init,
+};
+
+static const char * const imx25_dt_board_compat[] __initconst = {
+        "fsl,imx25",
+        NULL
+};
+
+DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
+        .map_io         = mx25_map_io,
+        .init_early     = imx25_init_early,
+        .init_irq       = mx25_init_irq,
+        .handle_irq     = imx25_handle_irq,
+        .timer          = &imx25_timer,
+        .init_machine   = imx25_dt_init,
+        .dt_compat      = imx25_dt_board_compat,
+        .restart        = mxc_restart,
+MACHINE_END
diff --git a/arch/arm/mach-imx/lluart.c b/arch/arm/mach-imx/lluart.c
index 5f1510363ee7..2fdc9bf2fb5e 100644
--- a/arch/arm/mach-imx/lluart.c
+++ b/arch/arm/mach-imx/lluart.c
@@ -17,17 +17,25 @@
 
 #include "hardware.h"
 
+#define IMX6Q_UART1_BASE_ADDR   0x02020000
+#define IMX6Q_UART2_BASE_ADDR   0x021e8000
+#define IMX6Q_UART3_BASE_ADDR   0x021ec000
+#define IMX6Q_UART4_BASE_ADDR   0x021f0000
+#define IMX6Q_UART5_BASE_ADDR   0x021f4000
+
+/*
+ * IMX6Q_UART_BASE_ADDR is put in the middle to force the expansion
+ * of IMX6Q_UART##n##_BASE_ADDR.
+ */
+#define IMX6Q_UART_BASE_ADDR(n) IMX6Q_UART##n##_BASE_ADDR
+#define IMX6Q_UART_BASE(n)      IMX6Q_UART_BASE_ADDR(n)
+#define IMX6Q_DEBUG_UART_BASE   IMX6Q_UART_BASE(CONFIG_DEBUG_IMX6Q_UART_PORT)
+
 static struct map_desc imx_lluart_desc = {
-#ifdef CONFIG_DEBUG_IMX6Q_UART2
-        .virtual        = MX6Q_IO_P2V(MX6Q_UART2_BASE_ADDR),
-        .pfn            = __phys_to_pfn(MX6Q_UART2_BASE_ADDR),
-        .length         = MX6Q_UART2_SIZE,
-        .type           = MT_DEVICE,
-#endif
-#ifdef CONFIG_DEBUG_IMX6Q_UART4
-        .virtual        = MX6Q_IO_P2V(MX6Q_UART4_BASE_ADDR),
-        .pfn            = __phys_to_pfn(MX6Q_UART4_BASE_ADDR),
-        .length         = MX6Q_UART4_SIZE,
+#ifdef CONFIG_DEBUG_IMX6Q_UART
+        .virtual        = IMX_IO_P2V(IMX6Q_DEBUG_UART_BASE),
+        .pfn            = __phys_to_pfn(IMX6Q_DEBUG_UART_BASE),
+        .length         = 0x4000,
         .type           = MT_DEVICE,
 #endif
 };
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index cce33e433bd1..4eb1b3ac794c 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -38,6 +38,40 @@
 #include "cpuidle.h"
 #include "hardware.h"
 
+#define IMX6Q_ANALOG_DIGPROG    0x260
+
+static int imx6q_revision(void)
+{
+        struct device_node *np;
+        void __iomem *base;
+        static u32 rev;
+
+        if (!rev) {
+                np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
+                if (!np)
+                        return IMX_CHIP_REVISION_UNKNOWN;
+                base = of_iomap(np, 0);
+                if (!base) {
+                        of_node_put(np);
+                        return IMX_CHIP_REVISION_UNKNOWN;
+                }
+                rev =  readl_relaxed(base + IMX6Q_ANALOG_DIGPROG);
+                iounmap(base);
+                of_node_put(np);
+        }
+
+        switch (rev & 0xff) {
+        case 0:
+                return IMX_CHIP_REVISION_1_0;
+        case 1:
+                return IMX_CHIP_REVISION_1_1;
+        case 2:
+                return IMX_CHIP_REVISION_1_2;
+        default:
+                return IMX_CHIP_REVISION_UNKNOWN;
+        }
+}
+
 void imx6q_restart(char mode, const char *cmd)
 {
         struct device_node *np;
@@ -204,6 +238,7 @@ static void __init imx6q_timer_init(void)
 {
         mx6q_clocks_init();
         twd_local_timer_of_register();
+        imx_print_silicon_rev("i.MX6Q", imx6q_revision());
 }
 
 static struct sys_timer imx6q_timer = {
diff --git a/arch/arm/mach-imx/mx6q.h b/arch/arm/mach-imx/mx6q.h
index f7e7dbac8f4b..19d3f54db5af 100644
--- a/arch/arm/mach-imx/mx6q.h
+++ b/arch/arm/mach-imx/mx6q.h
@@ -27,9 +27,5 @@
 #define MX6Q_CCM_SIZE                   0x4000
 #define MX6Q_ANATOP_BASE_ADDR           0x020c8000
 #define MX6Q_ANATOP_SIZE                0x1000
-#define MX6Q_UART2_BASE_ADDR            0x021e8000
-#define MX6Q_UART2_SIZE                 0x4000
-#define MX6Q_UART4_BASE_ADDR            0x021f0000
-#define MX6Q_UART4_SIZE                 0x4000
 
 #endif  /* __MACH_MX6Q_H__ */