Merge tag 'integrator-armsoc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/late

Pull "This is a bunch of Integrator changes for v4.9" Linus Walleij:

- Add and fix a bunch of clocks in the DTS corresponding
  to the new clock support merged into the clk tree.
- Move the CLCD display configuration from boardfile to
  device tree using the new CLCD support merged into the
  fbdev tree.
- Cut some auxdata.
- Cut some static remappings.
- Move the sched_clock() counter to use syscon+regmap.

* tag 'integrator-armsoc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
  ARM: integrator: read counter using syscon/regmap
  ARM: integrator: cut down on static maps
  ARM: integrator: delete some auxdata
  ARM: integrator: move CP CLCD display to DTS
  ARM: dts: add the core module clocks to Integrator/CP
  ARM: dts: Add the core module clocks to Integrator/AP
  ARM: dts: add the Integrator/AP baseboard clocks
  ARM: dts: set the 24MHz xtal as parent of the UART clock

arch/arm/boot/dts/integratorap.dts

@@ -19,7 +19,7 @@
 		bootargs = "root=/dev/ram0 console=ttyAM0,38400n8 earlyprintk";
 	};
 
-	/* 24 MHz chrystal on the core module */
+	/* 24 MHz chrystal on the Integrator/AP development board */
 	xtal24mhz: xtal24mhz@24M {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
@@ -39,6 +39,34 @@
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
 		clock-frequency = <14745600>;
+		clocks = <&xtal24mhz>;
+	};
+
+	core-module@10000000 {
+		/* 24 MHz chrystal on the core module */
+		cm24mhz: cm24mhz@24M {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <24000000>;
+		};
+
+		/* Oscillator on the core module, clocks the CPU core */
+		cmosc: cmosc@24M {
+			compatible = "arm,syscon-icst525-integratorap-cm";
+			#clock-cells = <0>;
+			lock-offset = <0x14>;
+			vco-offset = <0x08>;
+			clocks = <&cm24mhz>;
+		};
+
+		/* Auxilary oscillator on the core module, 32.369MHz at boot */
+		auxosc: auxosc@24M {
+			compatible = "arm,syscon-icst525";
+			#clock-cells = <0>;
+			lock-offset = <0x14>;
+			vco-offset = <0x1c>;
+			clocks = <&cm24mhz>;
+		};
 	};
 
 	syscon {
@@ -47,6 +75,27 @@
 		interrupt-parent = <&pic>;
 		/* These are the logical module IRQs */
 		interrupts = <9>, <10>, <11>, <12>;
+
+		/*
+		 * SYSCLK clocks PCIv3 bridge, system controller and the
+		 * logic modules.
+		 */
+		sysclk: apsys@24M {
+			compatible = "arm,syscon-icst525-integratorap-sys";
+			#clock-cells = <0>;
+			lock-offset = <0x1c>;
+			vco-offset = <0x04>;
+			clocks = <&xtal24mhz>;
+		};
+
+		/* One-bit control for the PCI bus clock (33 or 25 MHz) */
+		pciclk: pciclk@24M {
+			compatible = "arm,syscon-icst525-integratorap-pci";
+			#clock-cells = <0>;
+			lock-offset = <0x1c>;
+			vco-offset = <0x04>;
+			clocks = <&xtal24mhz>;
+		};
 	};
 
 	timer0: timer@13000000 {

arch/arm/boot/dts/integratorcp.dts

@@ -58,20 +58,37 @@
 
 	core-module@10000000 {
 		/* 24 MHz chrystal on the core module */
-		xtal24mhz: xtal24mhz@24M {
+		cm24mhz: cm24mhz@24M {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <24000000>;
 		};
 
-		/*
-		 * External oscillator on the core module, usually used
-		 * to drive video circuitry. Driven from the 24MHz clock.
-		 */
-		auxosc: cm_aux_osc@25M {
+		/* Oscillator on the core module, clocks the CPU core */
+		cmcore: cmosc@24M {
+			compatible = "arm,syscon-icst525-integratorcp-cm-core";
+			#clock-cells = <0>;
+			lock-offset = <0x14>;
+			vco-offset = <0x08>;
+			clocks = <&cm24mhz>;
+		};
+
+		/* Oscillator on the core module, clocks the memory bus */
+		cmmem: cmosc@24M {
+			compatible = "arm,syscon-icst525-integratorcp-cm-mem";
+			#clock-cells = <0>;
+			lock-offset = <0x14>;
+			vco-offset = <0x08>;
+			clocks = <&cm24mhz>;
+		};
+
+		/* Auxilary oscillator on the core module, clocks the CLCD */
+		auxosc: auxosc@24M {
+			compatible = "arm,syscon-icst525";
 			#clock-cells = <0>;
-			compatible = "arm,integrator-cm-auxosc";
-			clocks = <&xtal24mhz>;
+			lock-offset = <0x14>;
+			vco-offset = <0x1c>;
+			clocks = <&cm24mhz>;
 		};
 
 		/* The KMI clock is the 24 MHz oscillator divided to 8MHz */
@@ -80,7 +97,7 @@
 			compatible = "fixed-factor-clock";
 			clock-div = <3>;
 			clock-mult = <1>;
-			clocks = <&xtal24mhz>;
+			clocks = <&cm24mhz>;
 		};
 
 		/* The timer clock is the 24 MHz oscillator divided to 1MHz */
@@ -89,7 +106,7 @@
 			compatible = "fixed-factor-clock";
 			clock-div = <24>;
 			clock-mult = <1>;
-			clocks = <&xtal24mhz>;
+			clocks = <&cm24mhz>;
 		};
 	};
 
@@ -209,7 +226,42 @@
 			reg = <0xC0000000 0x1000>;
 			interrupts = <22>;
 			clocks = <&auxosc>, <&pclk>;
-			clock-names = "clcd", "apb_pclk";
+			clock-names = "clcdclk", "apb_pclk";
+
+			port {
+				/*
+				 * The VGA connected is implemented with a
+				 * THS8134A triple DAC that can be run in 24bit
+				 * or 16bit RGB mode.
+				 */
+				clcd_pads: endpoint {
+					remote-endpoint = <&clcd_panel>;
+					arm,pl11x,tft-r0g0b0-pads = <1 7 13>;
+				};
+			};
+
+			panel {
+				compatible = "panel-dpi";
+
+				port {
+					clcd_panel: endpoint {
+						remote-endpoint = <&clcd_pads>;
+					};
+				};
+
+				/* Standard 640x480 VGA timings */
+				panel-timing {
+					clock-frequency = <25175000>;
+					hactive = <640>;
+					hback-porch = <48>;
+					hfront-porch = <16>;
+					hsync-len = <96>;
+					vactive = <480>;
+					vback-porch = <33>;
+					vfront-porch = <10>;
+					vsync-len = <2>;
+				};
+			};
 		};
 	};
 };

arch/arm/mach-integrator/integrator_ap.c

@@ -17,33 +17,19 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
-#include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/list.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/string.h>
 #include <linux/syscore_ops.h>
 #include <linux/amba/bus.h>
-#include <linux/amba/kmi.h>
 #include <linux/io.h>
 #include <linux/irqchip.h>
-#include <linux/platform_data/clk-integrator.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
-#include <linux/stat.h>
 #include <linux/termios.h>
 
-#include <asm/setup.h>
-#include <asm/param.h>		/* HZ */
-#include <asm/mach-types.h>
-
 #include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
 #include <asm/mach/map.h>
-#include <asm/mach/time.h>
 
 #include "hardware.h"
 #include "cm.h"
@@ -68,14 +54,8 @@ static void __iomem *ebi_base;
 
 /*
  * Logical      Physical
- * ef000000			Cache flush
- * f1100000	11000000	System controller registers
- * f1300000	13000000	Counter/Timer
  * f1400000	14000000	Interrupt controller
  * f1600000	16000000	UART 0
- * f1700000	17000000	UART 1
- * f1a00000	1a000000	Debug LEDs
- * f1b00000	1b000000	GPIO
  */
 
 static struct map_desc ap_io_desc[] __initdata __maybe_unused = {
@@ -89,16 +69,6 @@ static struct map_desc ap_io_desc[] __initdata __maybe_unused = {
 		.pfn		= __phys_to_pfn(INTEGRATOR_UART0_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE
-	}, {
-		.virtual	= IO_ADDRESS(INTEGRATOR_DBG_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_DBG_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	}, {
-		.virtual	= IO_ADDRESS(INTEGRATOR_AP_GPIO_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_AP_GPIO_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
 	}
 };
 
@@ -196,16 +166,10 @@ static void __init ap_init_irq_of(void)
 
 /* For the Device Tree, add in the UART callbacks as AUXDATA */
 static struct of_dev_auxdata ap_auxdata_lookup[] __initdata = {
-	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE,
-		"rtc", NULL),
 	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE,
 		"uart0", &ap_uart_data),
 	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE,
 		"uart1", &ap_uart_data),
-	OF_DEV_AUXDATA("arm,primecell", KMI0_BASE,
-		"kmi0", NULL),
-	OF_DEV_AUXDATA("arm,primecell", KMI1_BASE,
-		"kmi1", NULL),
 	{ /* sentinel */ },
 };
 

arch/arm/mach-integrator/integrator_cp.c

@@ -7,67 +7,40 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License.
  */
-#include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/string.h>
-#include <linux/device.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/kmi.h>
-#include <linux/amba/clcd.h>
-#include <linux/platform_data/video-clcd-versatile.h>
 #include <linux/amba/mmci.h>
 #include <linux/io.h>
 #include <linux/irqchip.h>
-#include <linux/gfp.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/sched_clock.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
 
-#include <asm/setup.h>
-#include <asm/mach-types.h>
 #include <asm/mach/arch.h>
-#include <asm/mach/irq.h>
 #include <asm/mach/map.h>
-#include <asm/mach/time.h>
 
 #include "hardware.h"
 #include "cm.h"
 #include "common.h"
 
+/* Base address to the core module header */
+static struct regmap *cm_map;
 /* Base address to the CP controller */
 static void __iomem *intcp_con_base;
 
-#define INTCP_PA_CLCD_BASE		0xc0000000
+#define CM_COUNTER_OFFSET 0x28
 
 /*
  * Logical      Physical
- * f1000000	10000000	Core module registers
- * f1300000	13000000	Counter/Timer
  * f1400000	14000000	Interrupt controller
  * f1600000	16000000	UART 0
- * f1700000	17000000	UART 1
- * f1a00000	1a000000	Debug LEDs
- * fc900000	c9000000	GPIO
  * fca00000	ca000000	SIC
  */
 
 static struct map_desc intcp_io_desc[] __initdata __maybe_unused = {
 	{
-		.virtual	= IO_ADDRESS(INTEGRATOR_HDR_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_HDR_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	}, {
-		.virtual	= IO_ADDRESS(INTEGRATOR_CT_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_CT_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	}, {
 		.virtual	= IO_ADDRESS(INTEGRATOR_IC_BASE),
 		.pfn		= __phys_to_pfn(INTEGRATOR_IC_BASE),
 		.length		= SZ_4K,
@@ -77,16 +50,6 @@ static struct map_desc intcp_io_desc[] __initdata __maybe_unused = {
 		.pfn		= __phys_to_pfn(INTEGRATOR_UART0_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE
-	}, {
-		.virtual	= IO_ADDRESS(INTEGRATOR_DBG_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_DBG_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	}, {
-		.virtual	= IO_ADDRESS(INTEGRATOR_CP_GPIO_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_CP_GPIO_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
 	}, {
 		.virtual	= IO_ADDRESS(INTEGRATOR_CP_SIC_BASE),
 		.pfn		= __phys_to_pfn(INTEGRATOR_CP_SIC_BASE),
@@ -121,66 +84,20 @@ static struct mmci_platform_data mmc_data = {
 	.gpio_cd	= -1,
 };
 
-/*
- * CLCD support
- */
-/*
- * Ensure VGA is selected.
- */
-static void cp_clcd_enable(struct clcd_fb *fb)
-{
-	struct fb_var_screeninfo *var = &fb->fb.var;
-	u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2
-			| CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1;
-
-	if (var->bits_per_pixel <= 8 ||
-	    (var->bits_per_pixel == 16 && var->green.length == 5))
-		/* Pseudocolor, RGB555, BGR555 */
-		val |= CM_CTRL_LCDMUXSEL_VGA555_TFT555;
-	else if (fb->fb.var.bits_per_pixel <= 16)
-		/* truecolor RGB565 */
-		val |= CM_CTRL_LCDMUXSEL_VGA565_TFT555;
-	else
-		val = 0; /* no idea for this, don't trust the docs */
-
-	cm_control(CM_CTRL_LCDMUXSEL_MASK|
-		   CM_CTRL_LCDEN0|
-		   CM_CTRL_LCDEN1|
-		   CM_CTRL_STATIC1|
-		   CM_CTRL_STATIC2|
-		   CM_CTRL_STATIC|
-		   CM_CTRL_n24BITEN, val);
-}
-
-static int cp_clcd_setup(struct clcd_fb *fb)
-{
-	fb->panel = versatile_clcd_get_panel("VGA");
-	if (!fb->panel)
-		return -EINVAL;
-
-	return versatile_clcd_setup_dma(fb, SZ_1M);
-}
-
-static struct clcd_board clcd_data = {
-	.name		= "Integrator/CP",
-	.caps		= CLCD_CAP_5551 | CLCD_CAP_RGB565 | CLCD_CAP_888,
-	.check		= clcdfb_check,
-	.decode		= clcdfb_decode,
-	.enable		= cp_clcd_enable,
-	.setup		= cp_clcd_setup,
-	.mmap		= versatile_clcd_mmap_dma,
-	.remove		= versatile_clcd_remove_dma,
-};
-
-#define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28)
-
 static u64 notrace intcp_read_sched_clock(void)
 {
-	return readl(REFCOUNTER);
+	unsigned int val;
+
+	/* MMIO so discard return code */
+	regmap_read(cm_map, CM_COUNTER_OFFSET, &val);
+	return val;
 }
 
 static void __init intcp_init_early(void)
 {
+	cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
+	if (IS_ERR(cm_map))
+		return;
 	sched_clock_register(intcp_read_sched_clock, 32, 24000000);
 }
 
@@ -195,22 +112,8 @@ static void __init intcp_init_irq_of(void)
  * and enforce the bus names since these are used for clock lookups.
  */
 static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = {
-	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE,
-		"rtc", NULL),
-	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE,
-		"uart0", NULL),
-	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE,
-		"uart1", NULL),
-	OF_DEV_AUXDATA("arm,primecell", KMI0_BASE,
-		"kmi0", NULL),
-	OF_DEV_AUXDATA("arm,primecell", KMI1_BASE,
-		"kmi1", NULL),
 	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_MMC_BASE,
 		"mmci", &mmc_data),
-	OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_AACI_BASE,
-		"aaci", &mmc_data),
-	OF_DEV_AUXDATA("arm,primecell", INTCP_PA_CLCD_BASE,
-		"clcd", &clcd_data),
 	{ /* sentinel */ },
 };