arm: mmp: Make use of the DT supported clock

Change the dtsi and dts file, soc initialization code to make
use of DT support clock.
So now in the code we do only need call of_clk_init to initialize
the clocks.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>

diff --git a/arch/arm/boot/dts/mmp2.dtsi b/arch/arm/boot/dts/mmp2.dtsi
index e44f996..766bbb8 100644 (file)
--- a/arch/arm/boot/dts/mmp2.dtsi
+++ b/arch/arm/boot/dts/mmp2.dtsi
@@ -8,6 +8,7 @@
  */
 
 #include "skeleton.dtsi"
+#include <dt-bindings/clock/marvell,mmp2.h>
 
 / {
        aliases {
@@ -135,6 +136,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4030000 0x1000>;
                                interrupts = <27>;
+                               clocks = <&soc_clocks MMP2_CLK_UART0>;
+                               resets = <&soc_clocks MMP2_CLK_UART0>;
                                status = "disabled";
                        };
 
@@ -142,6 +145,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4017000 0x1000>;
                                interrupts = <28>;
+                               clocks = <&soc_clocks MMP2_CLK_UART1>;
+                               resets = <&soc_clocks MMP2_CLK_UART1>;
                                status = "disabled";
                        };
 
@@ -149,6 +154,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4018000 0x1000>;
                                interrupts = <24>;
+                               clocks = <&soc_clocks MMP2_CLK_UART2>;
+                               resets = <&soc_clocks MMP2_CLK_UART2>;
                                status = "disabled";
                        };
 
@@ -156,6 +163,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4016000 0x1000>;
                                interrupts = <46>;
+                               clocks = <&soc_clocks MMP2_CLK_UART3>;
+                               resets = <&soc_clocks MMP2_CLK_UART3>;
                                status = "disabled";
                        };
 
@@ -168,6 +177,8 @@
                                #gpio-cells = <2>;
                                interrupts = <49>;
                                interrupt-names = "gpio_mux";
+                               clocks = <&soc_clocks MMP2_CLK_GPIO>;
+                               resets = <&soc_clocks MMP2_CLK_GPIO>;
                                interrupt-controller;
                                #interrupt-cells = <1>;
                                ranges;
@@ -201,6 +212,8 @@
                                compatible = "mrvl,mmp-twsi";
                                reg = <0xd4011000 0x1000>;
                                interrupts = <7>;
+                               clocks = <&soc_clocks MMP2_CLK_TWSI0>;
+                               resets = <&soc_clocks MMP2_CLK_TWSI0>;
                                #address-cells = <1>;
                                #size-cells = <0>;
                                mrvl,i2c-fast-mode;
@@ -211,6 +224,8 @@
                                compatible = "mrvl,mmp-twsi";
                                reg = <0xd4025000 0x1000>;
                                interrupts = <58>;
+                               clocks = <&soc_clocks MMP2_CLK_TWSI1>;
+                               resets = <&soc_clocks MMP2_CLK_TWSI1>;
                                status = "disabled";
                        };
 
@@ -220,8 +235,20 @@
                                interrupts = <1 0>;
                                interrupt-names = "rtc 1Hz", "rtc alarm";
                                interrupt-parent = <&intcmux5>;
+                               clocks = <&soc_clocks MMP2_CLK_RTC>;
+                               resets = <&soc_clocks MMP2_CLK_RTC>;
                                status = "disabled";
                        };
                };
+
+               soc_clocks: clocks{
+                       compatible = "marvell,mmp2-clock";
+                       reg = <0xd4050000 0x1000>,
+                             <0xd4282800 0x400>,
+                             <0xd4015000 0x1000>;
+                       reg-names = "mpmu", "apmu", "apbc";
+                       #clock-cells = <1>;
+                       #reset-cells = <1>;
+               };
        };
 };

diff --git a/arch/arm/boot/dts/pxa168.dtsi b/arch/arm/boot/dts/pxa168.dtsi
index bfcbdef..b899e25 100644 (file)
--- a/arch/arm/boot/dts/pxa168.dtsi
+++ b/arch/arm/boot/dts/pxa168.dtsi
@@ -8,6 +8,7 @@
  */
 
 #include "skeleton.dtsi"
+#include <dt-bindings/clock/marvell,pxa168.h>
 
 / {
        aliases {
@@ -59,6 +60,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4017000 0x1000>;
                                interrupts = <27>;
+                               clocks = <&soc_clocks PXA168_CLK_UART0>;
+                               resets = <&soc_clocks PXA168_CLK_UART0>;
                                status = "disabled";
                        };
 
@@ -66,6 +69,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4018000 0x1000>;
                                interrupts = <28>;
+                               clocks = <&soc_clocks PXA168_CLK_UART1>;
+                               resets = <&soc_clocks PXA168_CLK_UART1>;
                                status = "disabled";
                        };
 
@@ -73,6 +78,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4026000 0x1000>;
                                interrupts = <29>;
+                               clocks = <&soc_clocks PXA168_CLK_UART2>;
+                               resets = <&soc_clocks PXA168_CLK_UART2>;
                                status = "disabled";
                        };
 
@@ -84,6 +91,8 @@
                                gpio-controller;
                                #gpio-cells = <2>;
                                interrupts = <49>;
+                               clocks = <&soc_clocks PXA168_CLK_GPIO>;
+                               resets = <&soc_clocks PXA168_CLK_GPIO>;
                                interrupt-names = "gpio_mux";
                                interrupt-controller;
                                #interrupt-cells = <1>;
@@ -110,6 +119,8 @@
                                compatible = "mrvl,mmp-twsi";
                                reg = <0xd4011000 0x1000>;
                                interrupts = <7>;
+                               clocks = <&soc_clocks PXA168_CLK_TWSI0>;
+                               resets = <&soc_clocks PXA168_CLK_TWSI0>;
                                mrvl,i2c-fast-mode;
                                status = "disabled";
                        };
@@ -118,6 +129,8 @@
                                compatible = "mrvl,mmp-twsi";
                                reg = <0xd4025000 0x1000>;
                                interrupts = <58>;
+                               clocks = <&soc_clocks PXA168_CLK_TWSI1>;
+                               resets = <&soc_clocks PXA168_CLK_TWSI1>;
                                status = "disabled";
                        };
 
@@ -126,8 +139,20 @@
                                reg = <0xd4010000 0x1000>;
                                interrupts = <5 6>;
                                interrupt-names = "rtc 1Hz", "rtc alarm";
+                               clocks = <&soc_clocks PXA168_CLK_RTC>;
+                               resets = <&soc_clocks PXA168_CLK_RTC>;
                                status = "disabled";
                        };
                };
+
+               soc_clocks: clocks{
+                       compatible = "marvell,pxa168-clock";
+                       reg = <0xd4050000 0x1000>,
+                             <0xd4282800 0x400>,
+                             <0xd4015000 0x1000>;
+                       reg-names = "mpmu", "apmu", "apbc";
+                       #clock-cells = <1>;
+                       #reset-cells = <1>;
+               };
        };
 };

diff --git a/arch/arm/boot/dts/pxa910.dtsi b/arch/arm/boot/dts/pxa910.dtsi
index 884c6e8..0868f67 100644 (file)
--- a/arch/arm/boot/dts/pxa910.dtsi
+++ b/arch/arm/boot/dts/pxa910.dtsi
@@ -8,6 +8,7 @@
  */
 
 #include "skeleton.dtsi"
+#include <dt-bindings/clock/marvell,pxa910.h>
 
 / {
        aliases {
@@ -71,6 +72,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4017000 0x1000>;
                                interrupts = <27>;
+                               clocks = <&soc_clocks PXA910_CLK_UART0>;
+                               resets = <&soc_clocks PXA910_CLK_UART0>;
                                status = "disabled";
                        };
 
@@ -78,6 +81,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4018000 0x1000>;
                                interrupts = <28>;
+                               clocks = <&soc_clocks PXA910_CLK_UART1>;
+                               resets = <&soc_clocks PXA910_CLK_UART1>;
                                status = "disabled";
                        };
 
@@ -85,6 +90,8 @@
                                compatible = "mrvl,mmp-uart";
                                reg = <0xd4036000 0x1000>;
                                interrupts = <59>;
+                               clocks = <&soc_clocks PXA910_CLK_UART2>;
+                               resets = <&soc_clocks PXA910_CLK_UART2>;
                                status = "disabled";
                        };
 
@@ -97,6 +104,8 @@
                                #gpio-cells = <2>;
                                interrupts = <49>;
                                interrupt-names = "gpio_mux";
+                               clocks = <&soc_clocks PXA910_CLK_GPIO>;
+                               resets = <&soc_clocks PXA910_CLK_GPIO>;
                                interrupt-controller;
                                #interrupt-cells = <1>;
                                ranges;
@@ -124,6 +133,8 @@
                                #size-cells = <0>;
                                reg = <0xd4011000 0x1000>;
                                interrupts = <7>;
+                               clocks = <&soc_clocks PXA910_CLK_TWSI0>;
+                               resets = <&soc_clocks PXA910_CLK_TWSI0>;
                                mrvl,i2c-fast-mode;
                                status = "disabled";
                        };
@@ -134,6 +145,8 @@
                                #size-cells = <0>;
                                reg = <0xd4037000 0x1000>;
                                interrupts = <54>;
+                               clocks = <&soc_clocks PXA910_CLK_TWSI1>;
+                               resets = <&soc_clocks PXA910_CLK_TWSI1>;
                                status = "disabled";
                        };
 
@@ -142,8 +155,21 @@
                                reg = <0xd4010000 0x1000>;
                                interrupts = <5 6>;
                                interrupt-names = "rtc 1Hz", "rtc alarm";
+                               clocks = <&soc_clocks PXA910_CLK_RTC>;
+                               resets = <&soc_clocks PXA910_CLK_RTC>;
                                status = "disabled";
                        };
                };
+
+               soc_clocks: clocks{
+                       compatible = "marvell,pxa910-clock";
+                       reg = <0xd4050000 0x1000>,
+                             <0xd4282800 0x400>,
+                             <0xd4015000 0x1000>,
+                             <0xd403b000 0x1000>;
+                       reg-names = "mpmu", "apmu", "apbc", "apbcp";
+                       #clock-cells = <1>;
+                       #reset-cells = <1>;
+               };
        };
 };

diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index ebdba87..fdbfadf 100644 (file)
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -86,11 +86,12 @@ config MACH_GPLUGD
 
 config MACH_MMP_DT
        bool "Support MMP (ARMv5) platforms from device tree"
-       select CPU_PXA168
-       select CPU_PXA910
        select USE_OF
        select PINCTRL
        select PINCTRL_SINGLE
+       select COMMON_CLK
+       select ARCH_HAS_RESET_CONTROLLER
+       select CPU_MOHAWK
        help
          Include support for Marvell MMP2 based platforms using
          the device tree. Needn't select any other machine while
@@ -99,10 +100,12 @@ config MACH_MMP_DT
 config MACH_MMP2_DT
        bool "Support MMP2 (ARMv7) platforms from device tree"
        depends on !CPU_MOHAWK
-       select CPU_MMP2
        select USE_OF
        select PINCTRL
        select PINCTRL_SINGLE
+       select COMMON_CLK
+       select ARCH_HAS_RESET_CONTROLLER
+       select CPU_PJ4
        help
          Include support for Marvell MMP2 based platforms using
          the device tree.
@@ -111,21 +114,18 @@ endmenu
 
 config CPU_PXA168
        bool
-       select COMMON_CLK
        select CPU_MOHAWK
        help
          Select code specific to PXA168
 
 config CPU_PXA910
        bool
-       select COMMON_CLK
        select CPU_MOHAWK
        help
          Select code specific to PXA910
 
 config CPU_MMP2
        bool
-       select COMMON_CLK
        select CPU_PJ4
        help
          Select code specific to MMP2. MMP2 is ARMv7 compatible.

diff --git a/arch/arm/mach-mmp/mmp-dt.c b/arch/arm/mach-mmp/mmp-dt.c
index cca529c..b2296c9 100644 (file)
--- a/arch/arm/mach-mmp/mmp-dt.c
+++ b/arch/arm/mach-mmp/mmp-dt.c
@@ -11,63 +11,42 @@
 
 #include <linux/irqchip.h>
 #include <linux/of_platform.h>
+#include <linux/clk-provider.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
+#include <asm/hardware/cache-tauros2.h>
 
 #include "common.h"
 
 extern void __init mmp_dt_init_timer(void);
 
-static const struct of_dev_auxdata pxa168_auxdata_lookup[] __initconst = {
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4026000, "pxa2xx-uart.2", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL),
-       OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp-gpio", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL),
-       {}
+static const char *pxa168_dt_board_compat[] __initdata = {
+       "mrvl,pxa168-aspenite",
+       NULL,
 };
 
-static const struct of_dev_auxdata pxa910_auxdata_lookup[] __initconst = {
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4036000, "pxa2xx-uart.2", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4037000, "pxa2xx-i2c.1", NULL),
-       OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp-gpio", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL),
-       {}
+static const char *pxa910_dt_board_compat[] __initdata = {
+       "mrvl,pxa910-dkb",
+       NULL,
 };
 
-static void __init pxa168_dt_init(void)
-{
-       of_platform_populate(NULL, of_default_bus_match_table,
-                            pxa168_auxdata_lookup, NULL);
-}
-
-static void __init pxa910_dt_init(void)
+static void __init mmp_init_time(void)
 {
-       of_platform_populate(NULL, of_default_bus_match_table,
-                            pxa910_auxdata_lookup, NULL);
+#ifdef CONFIG_CACHE_TAUROS2
+       tauros2_init(0);
+#endif
+       mmp_dt_init_timer();
+       of_clk_init(NULL);
 }
 
-static const char *mmp_dt_board_compat[] __initdata = {
-       "mrvl,pxa168-aspenite",
-       "mrvl,pxa910-dkb",
-       NULL,
-};
-
 DT_MACHINE_START(PXA168_DT, "Marvell PXA168 (Device Tree Support)")
        .map_io         = mmp_map_io,
-       .init_time      = mmp_dt_init_timer,
-       .init_machine   = pxa168_dt_init,
-       .dt_compat      = mmp_dt_board_compat,
+       .init_time      = mmp_init_time,
+       .dt_compat      = pxa168_dt_board_compat,
 MACHINE_END
 
 DT_MACHINE_START(PXA910_DT, "Marvell PXA910 (Device Tree Support)")
        .map_io         = mmp_map_io,
-       .init_time      = mmp_dt_init_timer,
-       .init_machine   = pxa910_dt_init,
-       .dt_compat      = mmp_dt_board_compat,
+       .init_time      = mmp_init_time,
+       .dt_compat      = pxa910_dt_board_compat,
 MACHINE_END

diff --git a/arch/arm/mach-mmp/mmp2-dt.c b/arch/arm/mach-mmp/mmp2-dt.c
index 023cb45..998c0f5 100644 (file)
--- a/arch/arm/mach-mmp/mmp2-dt.c
+++ b/arch/arm/mach-mmp/mmp2-dt.c
@@ -12,29 +12,22 @@
 #include <linux/io.h>
 #include <linux/irqchip.h>
 #include <linux/of_platform.h>
+#include <linux/clk-provider.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
+#include <asm/hardware/cache-tauros2.h>
 
 #include "common.h"
 
 extern void __init mmp_dt_init_timer(void);
 
-static const struct of_dev_auxdata mmp2_auxdata_lookup[] __initconst = {
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4030000, "pxa2xx-uart.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.1", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.2", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4016000, "pxa2xx-uart.3", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL),
-       OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp2-gpio", NULL),
-       OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL),
-       {}
-};
-
-static void __init mmp2_dt_init(void)
+static void __init mmp_init_time(void)
 {
-       of_platform_populate(NULL, of_default_bus_match_table,
-                            mmp2_auxdata_lookup, NULL);
+#ifdef CONFIG_CACHE_TAUROS2
+       tauros2_init(0);
+#endif
+       mmp_dt_init_timer();
+       of_clk_init(NULL);
 }
 
 static const char *mmp2_dt_board_compat[] __initdata = {
@@ -44,7 +37,6 @@ static const char *mmp2_dt_board_compat[] __initdata = {
 
 DT_MACHINE_START(MMP2_DT, "Marvell MMP2 (Device Tree Support)")
        .map_io         = mmp_map_io,
-       .init_time      = mmp_dt_init_timer,
-       .init_machine   = mmp2_dt_init,
+       .init_time      = mmp_init_time,
        .dt_compat      = mmp2_dt_board_compat,
 MACHINE_END