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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-24 16:40:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-24 16:40:57 -0700
commit9161c3b796a2841a9a7be3d9c9dd121269ce90e8 (patch)
tree4920a191c4a2eecae1a4e055af7e967f1e769714 /arch/arm
parent97027da6adf2e24a4e8d3d9c0668da3006b29971 (diff)
parent137f8a7213d80c1388ca48280c1ef0856b6fec30 (diff)
Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux
Pull common clk framework changes from Michael Turquette: "This includes a small number of core framework improvments, platform ports and new DT bindings." Fix up trivial conflicts in drivers/clk/Makefile * tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux: (21 commits) clk: fix compile for OF && !COMMON_CLK clk: fix clk_get on of_clk_get_by_name return check clk: mxs: clk_register_clkdev mx28 usb clocks clk: add highbank clock support dt: add clock binding doc to primecell bindings clk: add DT fixed-clock binding support clk: add DT clock binding support ARM: integrator: convert to common clock clk: add versatile ICST307 driver ARM: integrator: put symbolic bus names on devices ARM: u300: convert to common clock clk: cache parent clocks only for muxes clk: wm831x: Add initial WM831x clock driver clk: Constify struct clk_init_data clk: Add CLK_IS_BASIC flag to identify basic clocks clk: Add support for rate table based dividers clk: Add support for power of two type dividers clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3 clk: mxs: add clkdev lookup for pwm clk: mxs: Fix the GPMI clock name ...
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig8
-rw-r--r--arch/arm/boot/dts/highbank.dts91
-rw-r--r--arch/arm/mach-highbank/Makefile2
-rw-r--r--arch/arm/mach-highbank/clock.c62
-rw-r--r--arch/arm/mach-highbank/highbank.c7
-rw-r--r--arch/arm/mach-integrator/core.c55
-rw-r--r--arch/arm/mach-integrator/include/mach/clkdev.h26
-rw-r--r--arch/arm/mach-integrator/integrator_ap.c8
-rw-r--r--arch/arm/mach-integrator/integrator_cp.c69
-rw-r--r--arch/arm/mach-u300/Makefile2
-rw-r--r--arch/arm/mach-u300/clock.c1504
-rw-r--r--arch/arm/mach-u300/clock.h50
-rw-r--r--arch/arm/mach-u300/core.c21
-rw-r--r--arch/arm/mach-u300/timer.c2
14 files changed, 133 insertions, 1774 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c7e6d208fa8..b25c9d3c379 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -273,8 +273,8 @@ config ARCH_INTEGRATOR
bool "ARM Ltd. Integrator family"
select ARM_AMBA
select ARCH_HAS_CPUFREQ
- select CLKDEV_LOOKUP
- select HAVE_MACH_CLKDEV
+ select COMMON_CLK
+ select CLK_VERSATILE
select HAVE_TCM
select ICST
select GENERIC_CLOCKEVENTS
@@ -336,6 +336,7 @@ config ARCH_VEXPRESS
select ICST
select NO_IOPORT
select PLAT_VERSATILE
+ select PLAT_VERSATILE_CLOCK
select PLAT_VERSATILE_CLCD
select REGULATOR_FIXED_VOLTAGE if REGULATOR
help
@@ -372,6 +373,7 @@ config ARCH_HIGHBANK
select ARM_TIMER_SP804
select CACHE_L2X0
select CLKDEV_LOOKUP
+ select COMMON_CLK
select CPU_V7
select GENERIC_CLOCKEVENTS
select HAVE_ARM_SCU
@@ -929,7 +931,7 @@ config ARCH_U300
select ARM_VIC
select GENERIC_CLOCKEVENTS
select CLKDEV_LOOKUP
- select HAVE_MACH_CLKDEV
+ select COMMON_CLK
select GENERIC_GPIO
select ARCH_REQUIRE_GPIOLIB
help
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 83e72294aef..2e1cfa00c25 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -1,5 +1,5 @@
/*
- * Copyright 2011 Calxeda, Inc.
+ * Copyright 2011-2012 Calxeda, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -24,6 +24,7 @@
compatible = "calxeda,highbank";
#address-cells = <1>;
#size-cells = <1>;
+ clock-ranges;
cpus {
#address-cells = <1>;
@@ -33,24 +34,32 @@
compatible = "arm,cortex-a9";
reg = <0>;
next-level-cache = <&L2>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
};
cpu@1 {
compatible = "arm,cortex-a9";
reg = <1>;
next-level-cache = <&L2>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
};
cpu@2 {
compatible = "arm,cortex-a9";
reg = <2>;
next-level-cache = <&L2>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
};
cpu@3 {
compatible = "arm,cortex-a9";
reg = <3>;
next-level-cache = <&L2>;
+ clocks = <&a9pll>;
+ clock-names = "cpu";
};
};
@@ -75,12 +84,14 @@
compatible = "arm,cortex-a9-twd-timer";
reg = <0xfff10600 0x20>;
interrupts = <1 13 0xf01>;
+ clocks = <&a9periphclk>;
};
watchdog@fff10620 {
compatible = "arm,cortex-a9-twd-wdt";
reg = <0xfff10620 0x20>;
interrupts = <1 14 0xf01>;
+ clocks = <&a9periphclk>;
};
intc: interrupt-controller@fff11000 {
@@ -116,12 +127,15 @@
compatible = "calxeda,hb-sdhci";
reg = <0xffe0e000 0x1000>;
interrupts = <0 90 4>;
+ clocks = <&eclk>;
};
ipc@fff20000 {
compatible = "arm,pl320", "arm,primecell";
reg = <0xfff20000 0x1000>;
interrupts = <0 7 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
gpioe: gpio@fff30000 {
@@ -130,6 +144,8 @@
gpio-controller;
reg = <0xfff30000 0x1000>;
interrupts = <0 14 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
gpiof: gpio@fff31000 {
@@ -138,6 +154,8 @@
gpio-controller;
reg = <0xfff31000 0x1000>;
interrupts = <0 15 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
gpiog: gpio@fff32000 {
@@ -146,6 +164,8 @@
gpio-controller;
reg = <0xfff32000 0x1000>;
interrupts = <0 16 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
gpioh: gpio@fff33000 {
@@ -154,24 +174,32 @@
gpio-controller;
reg = <0xfff33000 0x1000>;
interrupts = <0 17 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
timer {
compatible = "arm,sp804", "arm,primecell";
reg = <0xfff34000 0x1000>;
interrupts = <0 18 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
rtc@fff35000 {
compatible = "arm,pl031", "arm,primecell";
reg = <0xfff35000 0x1000>;
interrupts = <0 19 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
serial@fff36000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0xfff36000 0x1000>;
interrupts = <0 20 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
smic@fff3a000 {
@@ -186,12 +214,73 @@
sregs@fff3c000 {
compatible = "calxeda,hb-sregs";
reg = <0xfff3c000 0x1000>;
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ osc: oscillator {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <33333000>;
+ };
+
+ ddrpll: ddrpll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x108>;
+ };
+
+ a9pll: a9pll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x100>;
+ };
+
+ a9periphclk: a9periphclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-a9periph-clock";
+ clocks = <&a9pll>;
+ reg = <0x104>;
+ };
+
+ a9bclk: a9bclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-a9bus-clock";
+ clocks = <&a9pll>;
+ reg = <0x104>;
+ };
+
+ emmcpll: emmcpll {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-pll-clock";
+ clocks = <&osc>;
+ reg = <0x10C>;
+ };
+
+ eclk: eclk {
+ #clock-cells = <0>;
+ compatible = "calxeda,hb-emmc-clock";
+ clocks = <&emmcpll>;
+ reg = <0x114>;
+ };
+
+ pclk: pclk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <150000000>;
+ };
+ };
};
dma@fff3d000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0xfff3d000 0x1000>;
interrupts = <0 92 4>;
+ clocks = <&pclk>;
+ clock-names = "apb_pclk";
};
ethernet@fff50000 {
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index ded4652ada8..3ec8bdd25d0 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -1,4 +1,4 @@
-obj-y := clock.o highbank.o system.o smc.o
+obj-y := highbank.o system.o smc.o
plus_sec := $(call as-instr,.arch_extension sec,+sec)
AFLAGS_smc.o :=-Wa,-march=armv7-a$(plus_sec)
diff --git a/arch/arm/mach-highbank/clock.c b/arch/arm/mach-highbank/clock.c
deleted file mode 100644
index c25a2ae4fde..00000000000
--- a/arch/arm/mach-highbank/clock.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright 2011 Calxeda, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-#include <linux/clkdev.h>
-
-struct clk {
- unsigned long rate;
-};
-
-int clk_enable(struct clk *clk)
-{
- return 0;
-}
-
-void clk_disable(struct clk *clk)
-{}
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- return clk->rate;
-}
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- return clk->rate;
-}
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- return 0;
-}
-
-static struct clk eclk = { .rate = 200000000 };
-static struct clk pclk = { .rate = 150000000 };
-
-static struct clk_lookup lookups[] = {
- { .clk = &pclk, .con_id = "apb_pclk", },
- { .clk = &pclk, .dev_id = "sp804", },
- { .clk = &eclk, .dev_id = "ffe0e000.sdhci", },
- { .clk = &pclk, .dev_id = "fff36000.serial", },
-};
-
-void __init highbank_clocks_init(void)
-{
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-}
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8777612b1a4..d75b0a78d88 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -105,6 +105,11 @@ static void __init highbank_init_irq(void)
#endif
}
+static struct clk_lookup lookup = {
+ .dev_id = "sp804",
+ .con_id = NULL,
+};
+
static void __init highbank_timer_init(void)
{
int irq;
@@ -122,6 +127,8 @@ static void __init highbank_timer_init(void)
irq = irq_of_parse_and_map(np, 0);
highbank_clocks_init();
+ lookup.clk = of_clk_get(np, 0);
+ clkdev_add(&lookup);
sp804_clocksource_and_sched_clock_init(timer_base + 0x20, "timer1");
sp804_clockevents_init(timer_base, irq, "timer0");
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index eaf6c6366ff..ebf680bebdf 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -21,7 +21,6 @@
#include <linux/amba/bus.h>
#include <linux/amba/serial.h>
#include <linux/io.h>
-#include <linux/clkdev.h>
#include <mach/hardware.h>
#include <mach/platform.h>
@@ -41,17 +40,17 @@ static struct amba_pl010_data integrator_uart_data;
#define KMI0_IRQ { IRQ_KMIINT0 }
#define KMI1_IRQ { IRQ_KMIINT1 }
-static AMBA_APB_DEVICE(rtc, "mb:15", 0,
+static AMBA_APB_DEVICE(rtc, "rtc", 0,
INTEGRATOR_RTC_BASE, INTEGRATOR_RTC_IRQ, NULL);
-static AMBA_APB_DEVICE(uart0, "mb:16", 0,
+static AMBA_APB_DEVICE(uart0, "uart0", 0,
INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, &integrator_uart_data);
-static AMBA_APB_DEVICE(uart1, "mb:17", 0,
+static AMBA_APB_DEVICE(uart1, "uart1", 0,
INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, &integrator_uart_data);
-static AMBA_APB_DEVICE(kmi0, "mb:18", 0, KMI0_BASE, KMI0_IRQ, NULL);
-static AMBA_APB_DEVICE(kmi1, "mb:19", 0, KMI1_BASE, KMI1_IRQ, NULL);
+static AMBA_APB_DEVICE(kmi0, "kmi0", 0, KMI0_BASE, KMI0_IRQ, NULL);
+static AMBA_APB_DEVICE(kmi1, "kmi1", 0, KMI1_BASE, KMI1_IRQ, NULL);
static struct amba_device *amba_devs[] __initdata = {
&rtc_device,
@@ -61,50 +60,6 @@ static struct amba_device *amba_devs[] __initdata = {
&kmi1_device,
};
-/*
- * These are fixed clocks.
- */
-static struct clk clk24mhz = {
- .rate = 24000000,
-};
-
-static struct clk uartclk = {
- .rate = 14745600,
-};
-
-static struct clk dummy_apb_pclk;
-
-static struct clk_lookup lookups[] = {
- { /* Bus clock */
- .con_id = "apb_pclk",
- .clk = &dummy_apb_pclk,
- }, {
- /* Integrator/AP timer frequency */
- .dev_id = "ap_timer",
- .clk = &clk24mhz,
- }, { /* UART0 */
- .dev_id = "mb:16",
- .clk = &uartclk,
- }, { /* UART1 */
- .dev_id = "mb:17",
- .clk = &uartclk,
- }, { /* KMI0 */
- .dev_id = "mb:18",
- .clk = &clk24mhz,
- }, { /* KMI1 */
- .dev_id = "mb:19",
- .clk = &clk24mhz,
- }, { /* MMCI - IntegratorCP */
- .dev_id = "mb:1c",
- .clk = &uartclk,
- }
-};
-
-void __init integrator_init_early(void)
-{
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-}
-
static int __init integrator_init(void)
{
int i;
diff --git a/arch/arm/mach-integrator/include/mach/clkdev.h b/arch/arm/mach-integrator/include/mach/clkdev.h
deleted file mode 100644
index bfe07679fae..00000000000
--- a/arch/arm/mach-integrator/include/mach/clkdev.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef __ASM_MACH_CLKDEV_H
-#define __ASM_MACH_CLKDEV_H
-
-#include <linux/module.h>
-#include <plat/clock.h>
-
-struct clk {
- unsigned long rate;
- const struct clk_ops *ops;
- struct module *owner;
- const struct icst_params *params;
- void __iomem *vcoreg;
- void *data;
-};
-
-static inline int __clk_get(struct clk *clk)
-{
- return try_module_get(clk->owner);
-}
-
-static inline void __clk_put(struct clk *clk)
-{
- module_put(clk->owner);
-}
-
-#endif
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index c857501c578..7b1055c8e0b 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -33,6 +33,7 @@
#include <linux/io.h>
#include <linux/mtd/physmap.h>
#include <linux/clk.h>
+#include <linux/platform_data/clk-integrator.h>
#include <video/vga.h>
#include <mach/hardware.h>
@@ -174,6 +175,7 @@ static void __init ap_init_irq(void)
fpga_irq_init(VA_IC_BASE, "SC", IRQ_PIC_START,
-1, INTEGRATOR_SC_VALID_INT, NULL);
+ integrator_clk_init(false);
}
#ifdef CONFIG_PM
@@ -440,6 +442,10 @@ static void integrator_clockevent_init(unsigned long inrate)
0xffffU);
}
+void __init ap_init_early(void)
+{
+}
+
/*
* Set up timer(s).
*/
@@ -471,7 +477,7 @@ MACHINE_START(INTEGRATOR, "ARM-Integrator")
.reserve = integrator_reserve,
.map_io = ap_map_io,
.nr_irqs = NR_IRQS_INTEGRATOR_AP,
- .init_early = integrator_init_early,
+ .init_early = ap_init_early,
.init_irq = ap_init_irq,
.handle_irq = fpga_handle_irq,
.timer = &ap_timer,
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index a56c5360893..82d5c837cc7 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -21,8 +21,8 @@
#include <linux/amba/mmci.h>
#include <linux/io.h>
#include <linux/gfp.h>
-#include <linux/clkdev.h>
#include <linux/mtd/physmap.h>
+#include <linux/platform_data/clk-integrator.h>
#include <mach/hardware.h>
#include <mach/platform.h>
@@ -171,65 +171,10 @@ static void __init intcp_init_irq(void)
fpga_irq_init(INTCP_VA_SIC_BASE, "SIC", IRQ_SIC_START,
IRQ_CP_CPPLDINT, sic_mask, NULL);
+ integrator_clk_init(true);
}
/*
- * Clock handling
- */
-#define CM_LOCK (__io_address(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET)
-#define CM_AUXOSC (__io_address(INTEGRATOR_HDR_BASE)+0x1c)
-
-static const struct icst_params cp_auxvco_params = {
- .ref = 24000000,
- .vco_max = ICST525_VCO_MAX_5V,
- .vco_min = ICST525_VCO_MIN,
- .vd_min = 8,
- .vd_max = 263,
- .rd_min = 3,
- .rd_max = 65,
- .s2div = icst525_s2div,
- .idx2s = icst525_idx2s,
-};
-
-static void cp_auxvco_set(struct clk *clk, struct icst_vco vco)
-{
- u32 val;
-
- val = readl(clk->vcoreg) & ~0x7ffff;
- val |= vco.v | (vco.r << 9) | (vco.s << 16);
-
- writel(0xa05f, CM_LOCK);
- writel(val, clk->vcoreg);
- writel(0, CM_LOCK);
-}
-
-static const struct clk_ops cp_auxclk_ops = {
- .round = icst_clk_round,
- .set = icst_clk_set,
- .setvco = cp_auxvco_set,
-};
-
-static struct clk cp_auxclk = {
- .ops = &cp_auxclk_ops,
- .params = &cp_auxvco_params,
- .vcoreg = CM_AUXOSC,
-};
-
-static struct clk sp804_clk = {
- .rate = 1000000,
-};
-
-static struct clk_lookup cp_lookups[] = {
- { /* CLCD */
- .dev_id = "mb:c0",
- .clk = &cp_auxclk,
- }, { /* SP804 timers */
- .dev_id = "sp804",
- .clk = &sp804_clk,
- },
-};
-
-/*
* Flash handling.
*/
static int intcp_flash_init(struct platform_device *dev)
@@ -336,10 +281,10 @@ static struct mmci_platform_data mmc_data = {
#define INTEGRATOR_CP_MMC_IRQS { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 }
#define INTEGRATOR_CP_AACI_IRQS { IRQ_CP_AACIINT }
-static AMBA_APB_DEVICE(mmc, "mb:1c", 0, INTEGRATOR_CP_MMC_BASE,
+static AMBA_APB_DEVICE(mmc, "mmci", 0, INTEGRATOR_CP_MMC_BASE,
INTEGRATOR_CP_MMC_IRQS, &mmc_data);
-static AMBA_APB_DEVICE(aaci, "mb:1d", 0, INTEGRATOR_CP_AACI_BASE,
+static AMBA_APB_DEVICE(aaci, "aaci", 0, INTEGRATOR_CP_AACI_BASE,
INTEGRATOR_CP_AACI_IRQS, NULL);
@@ -393,7 +338,7 @@ static struct clcd_board clcd_data = {
.remove = versatile_clcd_remove_dma,
};
-static AMBA_AHB_DEVICE(clcd, "mb:c0", 0, INTCP_PA_CLCD_BASE,
+static AMBA_AHB_DEVICE(clcd, "clcd", 0, INTCP_PA_CLCD_BASE,
{ IRQ_CP_CLCDCINT }, &clcd_data);
static struct amba_device *amba_devs[] __initdata = {
@@ -406,10 +351,6 @@ static struct amba_device *amba_devs[] __initdata = {
static void __init intcp_init_early(void)
{
- clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups));
-
- integrator_init_early();
-
#ifdef CONFIG_PLAT_VERSATILE_SCHED_CLOCK
versatile_sched_clock_init(REFCOUNTER, 24000000);
#endif
diff --git a/arch/arm/mach-u300/Makefile b/arch/arm/mach-u300/Makefile
index fd3a5c382f4..7e47d37aeb0 100644
--- a/arch/arm/mach-u300/Makefile
+++ b/arch/arm/mach-u300/Makefile
@@ -2,7 +2,7 @@
# Makefile for the linux kernel, U300 machine.
#
-obj-y := core.o clock.o timer.o
+obj-y := core.o timer.o
obj-m :=
obj-n :=
obj- :=
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
deleted file mode 100644
index 5535dd0a78c..00000000000
--- a/arch/arm/mach-u300/clock.c
+++ /dev/null
@@ -1,1504 +0,0 @@
-/*
- *
- * arch/arm/mach-u300/clock.c
- *
- *
- * Copyright (C) 2007-2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * Define clocks in the app platform.
- * Author: Linus Walleij <linus.walleij@stericsson.com>
- * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/string.h>
-#include <linux/clk.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/debugfs.h>
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/io.h>
-#include <linux/seq_file.h>
-#include <linux/clkdev.h>
-
-#include <mach/hardware.h>
-#include <mach/syscon.h>
-
-#include "clock.h"
-
-/*
- * TODO:
- * - move all handling of the CCR register into this file and create
- * a spinlock for the CCR register
- * - switch to the clkdevice lookup mechanism that maps clocks to
- * device ID:s instead when it becomes available in kernel 2.6.29.
- * - implement rate get/set for all clocks that need it.
- */
-
-/*
- * Syscon clock I/O registers lock so clock requests don't collide
- * NOTE: this is a local lock only used to lock access to clock and
- * reset registers in syscon.
- */
-static DEFINE_SPINLOCK(syscon_clkreg_lock);
-static DEFINE_SPINLOCK(syscon_resetreg_lock);
-
-/*
- * The clocking hierarchy currently looks like this.
- * NOTE: the idea is NOT to show how the clocks are routed on the chip!
- * The ideas is to show dependencies, so a clock higher up in the
- * hierarchy has to be on in order for another clock to be on. Now,
- * both CPU and DMA can actually be on top of the hierarchy, and that
- * is not modeled currently. Instead we have the backbone AMBA bus on
- * top. This bus cannot be programmed in any way but conceptually it
- * needs to be active for the bridges and devices to transport data.
- *
- * Please be aware that a few clocks are hw controlled, which mean that
- * the hw itself can turn on/off or change the rate of the clock when
- * needed!
- *
- * AMBA bus
- * |
- * +- CPU
- * +- FSMC NANDIF NAND Flash interface
- * +- SEMI Shared Memory interface
- * +- ISP Image Signal Processor (U335 only)
- * +- CDS (U335 only)
- * +- DMA Direct Memory Access Controller
- * +- AAIF APP/ACC Inteface (Mobile Scalable Link, MSL)
- * +- APEX
- * +- VIDEO_ENC AVE2/3 Video Encoder
- * +- XGAM Graphics Accelerator Controller
- * +- AHB
- * |
- * +- ahb:0 AHB Bridge
- * | |
- * | +- ahb:1 INTCON Interrupt controller
- * | +- ahb:3 MSPRO Memory Stick Pro controller
- * | +- ahb:4 EMIF External Memory interface
- * |
- * +- fast:0 FAST bridge
- * | |
- * | +- fast:1 MMCSD MMC/SD card reader controller
- * | +- fast:2 I2S0 PCM I2S channel 0 controller
- * | +- fast:3 I2S1 PCM I2S channel 1 controller
- * | +- fast:4 I2C0 I2C channel 0 controller
- * | +- fast:5 I2C1 I2C channel 1 controller
- * | +- fast:6 SPI SPI controller
- * | +- fast:7 UART1 Secondary UART (U335 only)
- * |
- * +- slow:0 SLOW bridge
- * |
- * +- slow:1 SYSCON (not possible to control)
- * +- slow:2 WDOG Watchdog
- * +- slow:3 UART0 primary UART
- * +- slow:4 TIMER_APP Application timer - used in Linux
- * +- slow:5 KEYPAD controller
- * +- slow:6 GPIO controller
- * +- slow:7 RTC controller
- * +- slow:8 BT Bus Tracer (not used currently)
- * +- slow:9 EH Event Handler (not used currently)
- * +- slow:a TIMER_ACC Access style timer (not used currently)
- * +- slow:b PPM (U335 only, what is that?)
- */
-
-/*
- * Reset control functions. We remember if a block has been
- * taken out of reset and don't remove the reset assertion again
- * and vice versa. Currently we only remove resets so the
- * enablement function is defined out.
- */
-static void syscon_block_reset_enable(struct clk *clk)
-{
- u16 val;
- unsigned long iflags;
-
- /* Not all blocks support resetting */
- if (!clk->res_reg || !clk->res_mask)
- return;
- spin_lock_irqsave(&syscon_resetreg_lock, iflags);
- val = readw(clk->res_reg);
- val |= clk->res_mask;
- writew(val, clk->res_reg);
- spin_unlock_irqrestore(&syscon_resetreg_lock, iflags);
- clk->reset = true;
-}
-
-static void syscon_block_reset_disable(struct clk *clk)
-{
- u16 val;
- unsigned long iflags;
-
- /* Not all blocks support resetting */
- if (!clk->res_reg || !clk->res_mask)
- return;
- spin_lock_irqsave(&syscon_resetreg_lock, iflags);
- val = readw(clk->res_reg);
- val &= ~clk->res_mask;
- writew(val, clk->res_reg);
- spin_unlock_irqrestore(&syscon_resetreg_lock, iflags);
- clk->reset = false;
-}
-
-int __clk_get(struct clk *clk)
-{
- u16 val;
-
- /* The MMC and MSPRO clocks need some special set-up */
- if (!strcmp(clk->name, "MCLK")) {
- /* Set default MMC clock divisor to 18.9 MHz */
- writew(0x0054U, U300_SYSCON_VBASE + U300_SYSCON_MMF0R);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_MMCR);
- /* Disable the MMC feedback clock */
- val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE;
- /* Disable MSPRO frequency */
- val &= ~U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_MMCR);
- }
- if (!strcmp(clk->name, "MSPRO")) {
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_MMCR);
- /* Disable the MMC feedback clock */
- val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE;
- /* Enable MSPRO frequency */
- val |= U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_MMCR);
- }
- return 1;
-}
-EXPORT_SYMBOL(__clk_get);
-
-void __clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(__clk_put);
-
-static void syscon_clk_disable(struct clk *clk)
-{
- unsigned long iflags;
-
- /* Don't touch the hardware controlled clocks */
- if (clk->hw_ctrld)
- return;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- writew(clk->clk_val, U300_SYSCON_VBASE + U300_SYSCON_SBCDR);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-static void syscon_clk_enable(struct clk *clk)
-{
- unsigned long iflags;
-
- /* Don't touch the hardware controlled clocks */
- if (clk->hw_ctrld)
- return;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- writew(clk->clk_val, U300_SYSCON_VBASE + U300_SYSCON_SBCER);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-static u16 syscon_clk_get_rate(void)
-{
- u16 val;
- unsigned long iflags;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val &= U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK;
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
- return val;
-}
-
-#ifdef CONFIG_MACH_U300_USE_I2S_AS_MASTER
-static void enable_i2s0_vcxo(void)
-{
- u16 val;
- unsigned long iflags;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- /* Set I2S0 to use the VCXO 26 MHz clock */
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val |= U300_SYSCON_CCR_TURN_VCXO_ON;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val |= U300_SYSCON_CCR_I2S0_USE_VCXO;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- val |= U300_SYSCON_CEFR_I2S0_CLK_EN;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-static void enable_i2s1_vcxo(void)
-{
- u16 val;
- unsigned long iflags;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- /* Set I2S1 to use the VCXO 26 MHz clock */
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val |= U300_SYSCON_CCR_TURN_VCXO_ON;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val |= U300_SYSCON_CCR_I2S1_USE_VCXO;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- val |= U300_SYSCON_CEFR_I2S1_CLK_EN;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-static void disable_i2s0_vcxo(void)
-{
- u16 val;
- unsigned long iflags;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- /* Disable I2S0 use of the VCXO 26 MHz clock */
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val &= ~U300_SYSCON_CCR_I2S0_USE_VCXO;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- /* Deactivate VCXO if no one else is using VCXO */
- if (!(val & U300_SYSCON_CCR_I2S1_USE_VCXO))
- val &= ~U300_SYSCON_CCR_TURN_VCXO_ON;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- val &= ~U300_SYSCON_CEFR_I2S0_CLK_EN;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-static void disable_i2s1_vcxo(void)
-{
- u16 val;
- unsigned long iflags;
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- /* Disable I2S1 use of the VCXO 26 MHz clock */
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val &= ~U300_SYSCON_CCR_I2S1_USE_VCXO;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- /* Deactivate VCXO if no one else is using VCXO */
- if (!(val & U300_SYSCON_CCR_I2S0_USE_VCXO))
- val &= ~U300_SYSCON_CCR_TURN_VCXO_ON;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR);
- val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- val &= ~U300_SYSCON_CEFR_I2S0_CLK_EN;
- writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-#endif /* CONFIG_MACH_U300_USE_I2S_AS_MASTER */
-
-
-static void syscon_clk_rate_set_mclk(unsigned long rate)
-{
- u16 val;
- u32 reg;
- unsigned long iflags;
-
- switch (rate) {
- case 18900000:
- val = 0x0054;
- break;
- case 20800000:
- val = 0x0044;
- break;
- case 23100000:
- val = 0x0043;
- break;
- case 26000000:
- val = 0x0033;
- break;
- case 29700000:
- val = 0x0032;
- break;
- case 34700000:
- val = 0x0022;
- break;
- case 41600000:
- val = 0x0021;
- break;
- case 52000000:
- val = 0x0011;
- break;
- case 104000000:
- val = 0x0000;
- break;
- default:
- printk(KERN_ERR "Trying to set MCLK to unknown speed! %ld\n",
- rate);
- return;
- }
-
- spin_lock_irqsave(&syscon_clkreg_lock, iflags);
- reg = readw(U300_SYSCON_VBASE + U300_SYSCON_MMF0R) &
- ~U300_SYSCON_MMF0R_MASK;
- writew(reg | val, U300_SYSCON_VBASE + U300_SYSCON_MMF0R);
- spin_unlock_irqrestore(&syscon_clkreg_lock, iflags);
-}
-
-void syscon_clk_rate_set_cpuclk(unsigned long rate)
-{
- u16 val;
- unsigned long iflags;
-
- switch (rate) {
- case 13000000:
- val = U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER;
- break;
- case 52000000:
- val = U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE;
- break;
- case 104000000:
- val = U300_SYSCON_CC