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Message-ID: <1351181518-11882-8-git-send-email-m-karicheri2@ti.com>
Date: Thu, 25 Oct 2012 12:11:53 -0400
From: Murali Karicheri <m-karicheri2@...com>
To: <mturquette@...aro.org>, <arnd@...db.de>,
<akpm@...ux-foundation.org>, <shawn.guo@...aro.org>,
<rob.herring@...xeda.com>, <linus.walleij@...aro.org>,
<viresh.linux@...il.com>, <linux-kernel@...r.kernel.org>,
<nsekhar@...com>, <khilman@...com>, <linux@....linux.org.uk>,
<sshtylyov@...sta.com>,
<davinci-linux-open-source@...ux.davincidsp.com>,
<linux-arm-kernel@...ts.infradead.org>
CC: <linux-keystone@...t.ti.com>,
Murali Karicheri <m-karicheri2@...com>
Subject: [PATCH v3 07/11] ARM: davinci - restructure header files for common clock migration
pll.h is added to migrate some of the PLL controller defines for sleep.S.
psc.h is modified to keep only PSC modules definitions needed by sleep.S
after migrating to common clock. The definitions under
ifdef CONFIG_COMMON_CLK will be removed in a subsequent patch.
davinci_watchdog_reset prototype is moved to time.h as clock.h is
being obsoleted. sleep.S and pm.c is modified to include the new header
file replacements.
Signed-off-by: Murali Karicheri <m-karicheri2@...com>
---
arch/arm/mach-davinci/devices.c | 2 ++
arch/arm/mach-davinci/include/mach/pll.h | 46 +++++++++++++++++++++++++++++
arch/arm/mach-davinci/include/mach/psc.h | 4 +++
arch/arm/mach-davinci/include/mach/time.h | 4 ++-
arch/arm/mach-davinci/pm.c | 4 +++
arch/arm/mach-davinci/sleep.S | 4 +++
6 files changed, 63 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/mach-davinci/include/mach/pll.h
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index d2f96662..96ee175 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -24,7 +24,9 @@
#include <mach/time.h>
#include "davinci.h"
+#ifndef CONFIG_COMMON_CLK
#include "clock.h"
+#endif
#define DAVINCI_I2C_BASE 0x01C21000
#define DAVINCI_ATA_BASE 0x01C66000
diff --git a/arch/arm/mach-davinci/include/mach/pll.h b/arch/arm/mach-davinci/include/mach/pll.h
new file mode 100644
index 0000000..fa51bc4
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/pll.h
@@ -0,0 +1,46 @@
+/*
+ * TI DaVinci PLL definitions
+ *
+ * Copyright (C) 2006-2012 Texas Instruments.
+ * Copyright (C) 2008-2009 Deep Root Systems, LLC
+ *
+ * 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.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef __ASM_ARCH_PLL_H
+#define __ASM_ARCH_PLL_H
+
+/* PLL/Reset register offsets */
+#define PLLCTL 0x100
+#define PLLCTL_PLLEN BIT(0)
+#define PLLCTL_PLLPWRDN BIT(1)
+#define PLLCTL_PLLRST BIT(3)
+#define PLLCTL_PLLDIS BIT(4)
+#define PLLCTL_PLLENSRC BIT(5)
+#define PLLCTL_CLKMODE BIT(8)
+#define PLLDIV_EN BIT(15)
+#define PLLDIV1 0x118
+/*
+ * OMAP-L138 system reference guide recommends a wait for 4 OSCIN/CLKIN
+ * cycles to ensure that the PLLC has switched to bypass mode. Delay of 1us
+ * ensures we are good for all > 4MHz OSCIN/CLKIN inputs. Typically the input
+ * is ~25MHz. Units are micro seconds.
+ */
+#define PLL_BYPASS_TIME 1
+/* From OMAP-L138 datasheet table 6-4. Units are micro seconds */
+#define PLL_RESET_TIME 1
+/*
+ * From OMAP-L138 datasheet table 6-4; assuming prediv = 1, sqrt(pllm) = 4
+ * Units are micro seconds.
+ */
+#define PLL_LOCK_TIME 20
+#define PLLSTAT_GOSTAT BIT(0)
+#define PLLCMD_GOSET BIT(0)
+
+#endif /* __ASM_ARCH_PLL_H */
diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h
index 405318e..eb464d3 100644
--- a/arch/arm/mach-davinci/include/mach/psc.h
+++ b/arch/arm/mach-davinci/include/mach/psc.h
@@ -27,6 +27,7 @@
#ifndef __ASM_ARCH_PSC_H
#define __ASM_ARCH_PSC_H
+#ifndef CONFIG_COMMON_CLK
#define DAVINCI_PWR_SLEEP_CNTRL_BASE 0x01C41000
/* Power and Sleep Controller (PSC) Domains */
@@ -227,6 +228,7 @@
#define TNETV107X_LPSC_DDR2_EMIF1_VRST 42
#define TNETV107X_LPSC_DDR2_EMIF2_VCTL_RST 43
#define TNETV107X_LPSC_MAX 44
+#endif
/* PSC register offsets */
#define EPCPR 0x070
@@ -251,9 +253,11 @@
#ifndef __ASSEMBLER__
+#ifndef CONFIG_COMMON_CLK
extern int davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id);
extern void davinci_psc_config(unsigned int domain, unsigned int ctlr,
unsigned int id, bool enable, u32 flags);
+#endif
#endif
diff --git a/arch/arm/mach-davinci/include/mach/time.h b/arch/arm/mach-davinci/include/mach/time.h
index 1c971d8..7faa530 100644
--- a/arch/arm/mach-davinci/include/mach/time.h
+++ b/arch/arm/mach-davinci/include/mach/time.h
@@ -31,5 +31,7 @@ enum {
#define ID_TO_TIMER(id) (IS_TIMER1(id) != 0)
extern struct davinci_timer_instance davinci_timer_instance[];
-
+#ifdef CONFIG_COMMON_CLK
+extern void davinci_watchdog_reset(struct platform_device *);
+#endif
#endif /* __ARCH_ARM_MACH_DAVINCI_TIME_H */
diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
index eb8360b..8802fdc 100644
--- a/arch/arm/mach-davinci/pm.c
+++ b/arch/arm/mach-davinci/pm.c
@@ -23,7 +23,11 @@
#include <mach/sram.h>
#include <mach/pm.h>
+#ifndef CONFIG_COMMON_CLK
#include "clock.h"
+#else
+#include <mach/pll.h>
+#endif
#define DEEPSLEEP_SLEEPCOUNT_MASK 0xFFFF
diff --git a/arch/arm/mach-davinci/sleep.S b/arch/arm/mach-davinci/sleep.S
index d4e9316..a3bd60d 100644
--- a/arch/arm/mach-davinci/sleep.S
+++ b/arch/arm/mach-davinci/sleep.S
@@ -24,7 +24,11 @@
#include <mach/psc.h>
#include <mach/ddr2.h>
+#ifndef CONFIG_COMMON_CLK
#include "clock.h"
+#else
+#include <mach/pll.h>
+#endif
/* Arbitrary, hardware currently does not update PHYRDY correctly */
#define PHYRDY_CYCLES 0x1000
--
1.7.9.5
--
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