Merge branch 'clps711x/cleanup' into next/cleanup2

Various cleanups for the clps711x platform from
Alexander Shiyan <shc_work@mail.ru> via email:

* clps711x/cleanup:
  ARM: clps711x: Remove board support for CEIVA
  ARM: clps711x: Fix register definitions
  ARM: clps711x: Fix lowlevel debug-macro
  ARM: clps711x: Added simple clock framework

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

10 files changed, 81 insertions, 170 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a11baed1c86..c2f0b92c12a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -384,6 +384,8 @@ config ARCH_CLPS711X
 	bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
 	select CPU_ARM720T
 	select ARCH_USES_GETTIMEOFFSET
+	select COMMON_CLK
+	select CLKDEV_LOOKUP
 	select NEED_MACH_MEMORY_H
 	help
 	  Support for Cirrus Logic 711x/721x/731x based boards.
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index ea036d62158..e6135363765 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -16,12 +16,6 @@ config ARCH_CDB89712
 	  The board includes 2 serial ports, Ethernet, IRDA, and expansion
 	  headers.  It comes with 16 MB SDRAM and 8 MB flash ROM.
 
-config ARCH_CEIVA
-	bool "CEIVA"
-	help
-	  Say Y here if you intend to run this kernel on the Ceiva/Polaroid
-	  PhotoMax Digital Picture Frame.
-
 config ARCH_CLEP7312
 	bool "CLEP7312"
 	help
diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile
index f2f0256232e..aed9eb66449 100644
--- a/arch/arm/mach-clps711x/Makefile
+++ b/arch/arm/mach-clps711x/Makefile
@@ -9,7 +9,6 @@ obj-m			:=
 obj-n			:=
 obj-			:=
 
-obj-$(CONFIG_ARCH_CEIVA) += ceiva.o
 obj-$(CONFIG_ARCH_AUTCPU12) += autcpu12.o
 obj-$(CONFIG_ARCH_CDB89712) += cdb89712.o
 obj-$(CONFIG_ARCH_CLEP7312) += clep7312.o
diff --git a/arch/arm/mach-clps711x/ceiva.c b/arch/arm/mach-clps711x/ceiva.c
deleted file mode 100644
index a70147e347a..00000000000
--- a/arch/arm/mach-clps711x/ceiva.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- *  linux/arch/arm/mach-clps711x/arch-ceiva.c
- *
- *  Copyright (C) 2002, Rob Scott <rscott@mtrob.fdns.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * 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/init.h>
-#include <linux/types.h>
-#include <linux/string.h>
-
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#include <linux/kernel.h>
-
-#include <mach/hardware.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sizes.h>
-
-#include <asm/mach/map.h>
-
-#include "common.h"
-
-static struct map_desc ceiva_io_desc[] __initdata = {
- 	/* SED1355 controlled video RAM & registers */
- 	{
-		.virtual	= CEIVA_VIRT_SED1355,
-		.pfn		= __phys_to_pfn(CEIVA_PHYS_SED1355),
-		.length		= SZ_2M,
-		.type		= MT_DEVICE
-	}
-};
-
-
-static void __init ceiva_map_io(void)
-{
-        clps711x_map_io();
-        iotable_init(ceiva_io_desc, ARRAY_SIZE(ceiva_io_desc));
-}
-
-
-MACHINE_START(CEIVA, "CEIVA/Polaroid Photo MAX Digital Picture Frame")
-	/* Maintainer: Rob Scott */
-	.atag_offset	= 0x100,
-	.map_io		= ceiva_map_io,
-	.init_irq	= clps711x_init_irq,
-	.timer		= &clps711x_timer,
-	.restart	= clps711x_restart,
-MACHINE_END
diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c
index f15293bd797..509243d89a3 100644
--- a/arch/arm/mach-clps711x/common.c
+++ b/arch/arm/mach-clps711x/common.c
@@ -19,24 +19,25 @@
  * 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/kernel.h>
-#include <linux/mm.h>
+#include <linux/io.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/io.h>
 #include <linux/irq.h>
-#include <linux/sched.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 
 #include <asm/sizes.h>
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm/leds.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
 #include <asm/system_misc.h>
 
+#include <mach/hardware.h>
+
+static struct clk *clk_pll, *clk_bus, *clk_uart, *clk_timerl, *clk_timerh,
+		  *clk_tint, *clk_spi;
+static unsigned long latch;
+
 /*
  * This maps the generic CLPS711x registers
  */
@@ -166,8 +167,8 @@ void __init clps711x_init_irq(void)
 static unsigned long clps711x_gettimeoffset(void)
 {
 	unsigned long hwticks;
-	hwticks = LATCH - (clps_readl(TC2D) & 0xffff);	/* since last underflow */
-	return (hwticks * (tick_nsec / 1000)) / LATCH;
+	hwticks = latch - (clps_readl(TC2D) & 0xffff);
+	return (hwticks * (tick_nsec / 1000)) / latch;
 }
 
 /*
@@ -185,15 +186,71 @@ static struct irqaction clps711x_timer_irq = {
 	.handler	= p720t_timer_interrupt,
 };
 
+static void add_fixed_clk(struct clk *clk, const char *name, int rate)
+{
+	clk = clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate);
+	clk_register_clkdev(clk, name, NULL);
+}
+
 static void __init clps711x_timer_init(void)
 {
-	unsigned int syscon;
+	int osc, ext, pll, cpu, bus, timl, timh, uart, spi;
+	u32 tmp;
+
+	osc = 3686400;
+	ext = 13000000;
+
+	tmp = clps_readl(PLLR) >> 24;
+	if (tmp)
+		pll = (osc * tmp) / 2;
+	else
+		pll = 73728000; /* Default value */
+
+	tmp = clps_readl(SYSFLG2);
+	if (tmp & SYSFLG2_CKMODE) {
+		cpu = ext;
+		bus = cpu;
+		spi = 135400;
+	} else {
+		cpu = pll;
+		if (cpu >= 36864000)
+			bus = cpu / 2;
+		else
+			bus = 36864000 / 2;
+		spi = cpu / 576;
+	}
+
+	uart = bus / 10;
+
+	if (tmp & SYSFLG2_CKMODE) {
+		tmp = clps_readl(SYSCON2);
+		if (tmp & SYSCON2_OSTB)
+			timh = ext / 26;
+		else
+			timh = 541440;
+	} else
+		timh = cpu / 144;
+
+	timl = timh / 256;
+
+	/* All clocks are fixed */
+	add_fixed_clk(clk_pll, "pll", pll);
+	add_fixed_clk(clk_bus, "bus", bus);
+	add_fixed_clk(clk_uart, "uart", uart);
+	add_fixed_clk(clk_timerl, "timer_lf", timl);
+	add_fixed_clk(clk_timerh, "timer_hf", timh);
+	add_fixed_clk(clk_tint, "tint", 64);
+	add_fixed_clk(clk_spi, "spi", spi);
+
+	pr_info("CPU frequency set at %i Hz.\n", cpu);
+
+	latch = (timh + HZ / 2) / HZ;
 
-	syscon = clps_readl(SYSCON1);
-	syscon |= SYSCON1_TC2S | SYSCON1_TC2M;
-	clps_writel(syscon, SYSCON1);
+	tmp = clps_readl(SYSCON1);
+	tmp |= SYSCON1_TC2S | SYSCON1_TC2M;
+	clps_writel(tmp, SYSCON1);
 
-	clps_writel(LATCH-1, TC2D); /* 512kHz / 100Hz - 1 */
+	clps_writel(latch - 1, TC2D);
 
 	setup_irq(IRQ_TC2OI, &clps711x_timer_irq);
 }
diff --git a/arch/arm/mach-clps711x/include/mach/clps711x.h b/arch/arm/mach-clps711x/include/mach/clps711x.h
index 1dd806f2847..c82e21ca49c 100644
--- a/arch/arm/mach-clps711x/include/mach/clps711x.h
+++ b/arch/arm/mach-clps711x/include/mach/clps711x.h
@@ -31,8 +31,8 @@
 #define PBDDR		(0x0041)
 #define PCDDR		(0x0042)
 #define PDDDR		(0x0043)
-#define PEDR		(0x0080)
-#define PEDDR		(0x00c0)
+#define PEDR		(0x0083)
+#define PEDDR		(0x00c3)
 #define SYSCON1		(0x0100)
 #define SYSFLG1		(0x0140)
 #define MEMCFG1		(0x0180)
@@ -77,7 +77,7 @@
 #define KBDEOI		(0x1700)
 
 #define DAIR		(0x2000)
-#define DAIR0		(0x2040)
+#define DAIDR0		(0x2040)
 #define DAIDR1		(0x2080)
 #define DAIDR2		(0x20c0)
 #define DAISR		(0x2100)
@@ -191,8 +191,7 @@
 #define UBRLCR_WRDLEN8		(3 << 17)
 #define UBRLCR_WRDLEN_MASK	(3 << 17)
 
-#define SYNCIO_FRMLEN(x)	(((x) & 0x3f) << 7)
-#define SYNCIO_CFGLEN(x)	((x) & 0x7f)
+#define SYNCIO_FRMLEN(x)	(((x) & 0x1f) << 8)
 #define SYNCIO_SMCKEN		(1 << 13)
 #define SYNCIO_TXFRMEN		(1 << 14)
 
diff --git a/arch/arm/mach-clps711x/include/mach/debug-macro.S b/arch/arm/mach-clps711x/include/mach/debug-macro.S
index 118b3d93057..cb3684f8dae 100644
--- a/arch/arm/mach-clps711x/include/mach/debug-macro.S
+++ b/arch/arm/mach-clps711x/include/mach/debug-macro.S
@@ -28,17 +28,11 @@
 		.endm
 
 		.macro	waituart,rd,rx
-1001:		ldr	\rd, [\rx, #0x0140]	@ SYSFLGx
-		tst	\rd, #1 << 11		@ UBUSYx
-		bne	1001b
 		.endm
 
 		.macro	busyuart,rd,rx
-		tst	\rx, #0x1000		@ UART2 does not have CTS here
-		bne	1002f
 1001:		ldr	\rd, [\rx, #0x0140]	@ SYSFLGx
-		tst	\rd, #1 << 8		@ CTS
+		tst	\rd, #1 << 11		@ UBUSYx
 		bne	1001b
-1002:
 		.endm
 
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
index 13a64fcd7dd..8497775d6ee 100644
--- a/arch/arm/mach-clps711x/include/mach/hardware.h
+++ b/arch/arm/mach-clps711x/include/mach/hardware.h
@@ -116,7 +116,6 @@
 
 #endif /* CONFIG_ARCH_EDB7211 */
 
-
 /*
  * Relevant bits in port D, which controls power to the various parts of
  * the LCD on the EDB7211.
@@ -125,51 +124,4 @@
 #define EDB_PD2_LCDEN		(1<<2)
 #define EDB_PD3_LCDBL		(1<<3)
 
-
-#if defined (CONFIG_ARCH_CEIVA)
-
-/*
- * The two flash banks are wired to chip selects 0 and 1. This is the mapping
- * for them.
- *
- * nCS0 and nCS1 are at 0x70000000 and 0x60000000, respectively, when running
- * in jumpered boot mode.
- */
-#define CEIVA_PHYS_FLASH1	CS0_PHYS_BASE	/* physical */
-#define CEIVA_PHYS_FLASH2	CS1_PHYS_BASE	/* physical */
-
-#define CEIVA_VIRT_FLASH1	(0xfa000000)	/* virtual */
-#define CEIVA_VIRT_FLASH2	(0xfb000000)	/* virtual */
-
-#define CEIVA_FLASH_SIZE        0x100000
-#define CEIVA_FLASH_WIDTH       2
-
-/*
- * SED1355 LCD controller
- */
-#define CEIVA_PHYS_SED1355	CS2_PHYS_BASE
-#define CEIVA_VIRT_SED1355	(0xfc000000)
-
-/*
- * Relevant bits in port D, which controls power to the various parts of
- * the LCD on the Ceiva Photo Max, and reset to the LCD controller.
- */
-
-// Reset line to SED1355 (must be high to operate)
-#define CEIVA_PD1_LCDRST	(1<<1)
-// LCD panel enable (set to one, to enable LCD)
-#define CEIVA_PD4_LCDEN		(1<<4)
-// Backlight (set to one, to turn on backlight
-#define CEIVA_PD5_LCDBL		(1<<5)
-
-/*
- * Relevant bits in port B, which report the status of the buttons.
- */
-
-// White button
-#define CEIVA_PB4_WHT_BTN	(1<<4)
-// Black button
-#define CEIVA_PB0_BLK_BTN	(1<<0)
-#endif // #if defined (CONFIG_ARCH_CEIVA)
-
 #endif
diff --git a/arch/arm/mach-clps711x/include/mach/timex.h b/arch/arm/mach-clps711x/include/mach/timex.h
index ac8823ccff9..de6fd192d1c 100644
--- a/arch/arm/mach-clps711x/include/mach/timex.h
+++ b/arch/arm/mach-clps711x/include/mach/timex.h
@@ -1,23 +1,2 @@
-/*
- *  arch/arm/mach-clps711x/include/mach/timex.h
- *
- *  Prospector 720T architecture timex specifications
- *
- *  Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
+/* Bogus value */
 #define CLOCK_TICK_RATE 512000
diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types
index 2997e56ce0d..ae87c5e3cbd 100644
--- a/arch/arm/tools/mach-types
+++ b/arch/arm/tools/mach-types
@@ -66,7 +66,6 @@ iq80321			ARCH_IQ80321		IQ80321			169
 ks8695			ARCH_KS8695		KS8695			180
 karo			ARCH_KARO		KARO			190
 smdk2410		ARCH_SMDK2410		SMDK2410		193
-ceiva			ARCH_CEIVA		CEIVA			200
 voiceblue		MACH_VOICEBLUE		VOICEBLUE		218
 h5400			ARCH_H5400		H5400			220
 omap_innovator		MACH_OMAP_INNOVATOR	OMAP_INNOVATOR		234