Hi Vikas, As you comment, I found the history of this patch in mailing list. It seems like that this patch stop the review. Besides, Pankaj posted same patch to support PMU as following: - https://lkml.org/lkml/2014/4/2/48 Do you have a plan to resend or not? because I need this patch to remove PMU static memory mapping for Exynos3250. Best Regards, Chanwoo Choi On 03/17/2014 10:09 PM, Vikas Sajjan wrote: > Instead of hardcoding the PMU details for each SoC, pass this information > through device tree (DT). > > Signed-off-by: Vikas Sajjan <vikas.sajjan@xxxxxxxxxxx> > --- > .../devicetree/bindings/arm/samsung/pmu.txt | 5 +- > arch/arm/boot/dts/exynos4.dtsi | 5 ++ > arch/arm/boot/dts/exynos5260.dtsi | 5 ++ > arch/arm/mach-exynos/common.c | 51 +++++++++++++------- > arch/arm/mach-exynos/include/mach/map.h | 3 -- > 5 files changed, 47 insertions(+), 22 deletions(-) > > diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt > index f1f1552..667a7f0 100644 > --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt > +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt > @@ -2,14 +2,15 @@ SAMSUNG Exynos SoC series PMU Registers > > Properties: > - compatible : should contain two values. First value must be one from following list: > + - "samsung,exynos4210-pmu" - for Exynos4210 and Exynos4x12 SoC, > - "samsung,exynos5250-pmu" - for Exynos5250 SoC, > - - "samsung,exynos5420-pmu" - for Exynos5420 SoC. > + - "samsung,exynos5420-pmu" - for Exynos5420 and Exynos5260 SoC. > second value must be always "syscon". > > - reg : offset and length of the register set. > > Example : > pmu_system_controller: system-controller@10040000 { > - compatible = "samsung,exynos5250-pmu", "syscon"; > + compatible = "samsung,exynos5250-pmu"; > reg = <0x10040000 0x5000>; > }; > diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi > index 08452e1..94cbafa 100644 > --- a/arch/arm/boot/dts/exynos4.dtsi > +++ b/arch/arm/boot/dts/exynos4.dtsi > @@ -55,6 +55,11 @@ > #phy-cells = <1>; > }; > > + pmu_system_controller: system-controller@10020000 { > + compatible = "samsung,exynos4210-pmu"; > + reg = <0x10020000 0x4000>; > + }; > + > pd_mfc: mfc-power-domain@10023C40 { > compatible = "samsung,exynos4210-pd"; > reg = <0x10023C40 0x20>; > diff --git a/arch/arm/boot/dts/exynos5260.dtsi b/arch/arm/boot/dts/exynos5260.dtsi > index a93fea8..2a4dace 100644 > --- a/arch/arm/boot/dts/exynos5260.dtsi > +++ b/arch/arm/boot/dts/exynos5260.dtsi > @@ -264,6 +264,11 @@ > }; > }; > > + pmu_system_controller: system-controller@10D50000 { > + compatible = "samsung,exynos5420-pmu"; > + reg = <0x10D50000 0x5000>; > + }; > + > pinctrl_0: pinctrl@11600000 { > compatible = "samsung,exynos5260-pinctrl"; > reg = <0x11600000 0x1000>; > diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c > index 1df81ff..c75733b 100644 > --- a/arch/arm/mach-exynos/common.c > +++ b/arch/arm/mach-exynos/common.c > @@ -79,11 +79,6 @@ static struct map_desc exynos4_iodesc[] __initdata = { > .length = SZ_4K, > .type = MT_DEVICE, > }, { > - .virtual = (unsigned long)S5P_VA_PMU, > - .pfn = __phys_to_pfn(EXYNOS4_PA_PMU), > - .length = SZ_64K, > - .type = MT_DEVICE, > - }, { > .virtual = (unsigned long)S5P_VA_COMBINER_BASE, > .pfn = __phys_to_pfn(EXYNOS4_PA_COMBINER), > .length = SZ_4K, > @@ -157,11 +152,6 @@ static struct map_desc exynos5_iodesc[] __initdata = { > .pfn = __phys_to_pfn(EXYNOS5_PA_CMU), > .length = 144 * SZ_1K, > .type = MT_DEVICE, > - }, { > - .virtual = (unsigned long)S5P_VA_PMU, > - .pfn = __phys_to_pfn(EXYNOS5_PA_PMU), > - .length = SZ_64K, > - .type = MT_DEVICE, > }, > }; > > @@ -243,12 +233,12 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, > return 1; > } > > -struct __sysram_desc { > +struct __exynos_reg_desc { > char name[32]; > unsigned long addr; > }; > > -static struct __sysram_desc sysram_desc[] __initdata = { > +static struct __exynos_reg_desc exynos_sysram_desc[] __initdata = { > { > .name = "samsung,exynos4210-sysram", > .addr = (unsigned long)S5P_VA_SYSRAM, > @@ -258,7 +248,20 @@ static struct __sysram_desc sysram_desc[] __initdata = { > }, > }; > > -static int __init exynos_fdt_map_sysram(unsigned long node, const char *uname, > +static struct __exynos_reg_desc exynos_pmu_desc[] __initdata = { > + { > + .name = "samsung,exynos4210-pmu", > + .addr = (unsigned long)S5P_VA_PMU, > + }, { > + .name = "samsung,exynos5250-pmu", > + .addr = (unsigned long)S5P_VA_PMU, > + }, { > + .name = "samsung,exynos5420-pmu", > + .addr = (unsigned long)S5P_VA_PMU, > + }, > +}; > + > +static int __init exynos_fdt_map_reg(unsigned long node, const char *uname, > int depth, void *data) > { > struct map_desc iodesc; > @@ -266,12 +269,26 @@ static int __init exynos_fdt_map_sysram(unsigned long node, const char *uname, > unsigned long len; > int i; > > - for (i = 0; i < ARRAY_SIZE(sysram_desc); i++) { > - if (of_flat_dt_is_compatible(node, sysram_desc[i].name)) { > + for (i = 0; i < ARRAY_SIZE(exynos_sysram_desc); i++) { > + if (of_flat_dt_is_compatible(node, > + exynos_sysram_desc[i].name)) { > + reg = of_get_flat_dt_prop(node, "reg", &len); > + if (!reg || len != (sizeof(unsigned long) * 2)) > + return -ENODEV; > + iodesc.virtual = exynos_sysram_desc[i].addr; > + iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); > + iodesc.length = be32_to_cpu(reg[1]); > + iodesc.type = MT_DEVICE; > + iotable_init(&iodesc, 1); > + } > + } > + > + for (i = 0; i < ARRAY_SIZE(exynos_pmu_desc); i++) { > + if (of_flat_dt_is_compatible(node, exynos_pmu_desc[i].name)) { > reg = of_get_flat_dt_prop(node, "reg", &len); > if (!reg || len != (sizeof(unsigned long) * 2)) > return -ENODEV; > - iodesc.virtual = sysram_desc[i].addr; > + iodesc.virtual = exynos_pmu_desc[i].addr; > iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); > iodesc.length = be32_to_cpu(reg[1]); > iodesc.type = MT_DEVICE; > @@ -298,7 +315,7 @@ void __init exynos_init_io(void) > > exynos_map_io(); > > - of_scan_flat_dt(exynos_fdt_map_sysram, NULL); > + of_scan_flat_dt(exynos_fdt_map_reg, NULL); > } > > static void __init exynos_map_io(void) > diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h > index 548269a..34eee6e 100644 > --- a/arch/arm/mach-exynos/include/mach/map.h > +++ b/arch/arm/mach-exynos/include/mach/map.h > @@ -28,9 +28,6 @@ > #define EXYNOS4_PA_SYSCON 0x10010000 > #define EXYNOS5_PA_SYSCON 0x10050100 > > -#define EXYNOS4_PA_PMU 0x10020000 > -#define EXYNOS5_PA_PMU 0x10040000 > - > #define EXYNOS4_PA_CMU 0x10030000 > #define EXYNOS5_PA_CMU 0x10010000 > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
