* [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller
@ 2013-02-18 7:54 Thomas Abraham
2013-02-18 7:54 ` [PATCH 1/2] ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree Thomas Abraham
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Thomas Abraham @ 2013-02-18 7:54 UTC (permalink / raw)
To: linux-arm-kernel
This patch series allows device tree enabled platforms to setup a runtime
I/O mapping for the chip-id controller. This helps to remove statically
defined I/O mapping for the Chip-ID controller.
Thomas Abraham (2):
ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree
ARM: dts: Add chip-id controller node on Exynos4/5 SoC
.../arm/samsung/samsung,exynos4210-chipid.txt | 15 ++++++
arch/arm/boot/dts/exynos4.dtsi | 5 ++
arch/arm/boot/dts/exynos5250.dtsi | 5 ++
arch/arm/mach-exynos/common.c | 53 +++++++++++---------
arch/arm/mach-exynos/include/mach/map.h | 1 -
5 files changed, 55 insertions(+), 24 deletions(-)
create mode 100644 Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210-chipid.txt
--
1.7.5.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH 1/2] ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree 2013-02-18 7:54 [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Thomas Abraham @ 2013-02-18 7:54 ` Thomas Abraham 2013-02-18 7:54 ` [PATCH 2/2] ARM: dts: Add chip-id controller node on Exynos4/5 SoC Thomas Abraham 2013-04-04 6:57 ` [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Kukjin Kim 2 siblings, 0 replies; 6+ messages in thread From: Thomas Abraham @ 2013-02-18 7:54 UTC (permalink / raw) To: linux-arm-kernel On device tree enabled exynos platforms, retrieve the physical base address of the chip-id controller from device tree and create a virtual I/O mapping for the chip-id controller. This helps to remove the chip-id controller entry from the statically defined I/O mapping tables. Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> --- .../arm/samsung/samsung,exynos4210-chipid.txt | 15 ++++++ arch/arm/mach-exynos/common.c | 53 +++++++++++--------- arch/arm/mach-exynos/include/mach/map.h | 1 - 3 files changed, 45 insertions(+), 24 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210-chipid.txt diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210-chipid.txt b/Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210-chipid.txt new file mode 100644 index 0000000..becb2ba --- /dev/null +++ b/Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210-chipid.txt @@ -0,0 +1,15 @@ +* Samsung Exynos4/5 Chip-ID controller + +Samsung's Exynos4/5 architectures include a chipid controller which can be used +to determine the product id and revision. + +Required properties: +- compatible: should be "samsung,exynos4210-chipid". +- reg: Base address and size of the chip-id controller registers. + +Example: + + chipid at 10000000 { + compatible = "samsung,exynos4210-chipid"; + reg = <0x10000000 0x100>; + }; diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 4ce342e..208dcf0 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -121,17 +121,6 @@ static struct map_desc exynos_iodesc[] __initdata = { }, }; -#ifdef CONFIG_ARCH_EXYNOS5 -static struct map_desc exynos5440_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_CHIPID, - .pfn = __phys_to_pfn(EXYNOS5440_PA_CHIPID), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; -#endif - static struct map_desc exynos4_iodesc[] __initdata = { { .virtual = (unsigned long)S3C_VA_SYS, @@ -354,6 +343,31 @@ void __init exynos_init_late(void) exynos_pm_late_initcall(); } +#ifdef CONFIG_OF +int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, + int depth, void *data) +{ + struct map_desc iodesc; + __be32 *reg; + unsigned long len; + + if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") && + !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock")) + return 0; + + reg = of_get_flat_dt_prop(node, "reg", &len); + if (reg == NULL || len != (sizeof(unsigned long) * 2)) + return 0; + + iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); + iodesc.length = be32_to_cpu(reg[1]) - 1; + iodesc.virtual = (unsigned long)S5P_VA_CHIPID; + iodesc.type = MT_DEVICE; + iotable_init(&iodesc, 1); + return 1; +} +#endif + /* * exynos_map_io * @@ -362,19 +376,12 @@ void __init exynos_init_late(void) void __init exynos_init_io(struct map_desc *mach_desc, int size) { - struct map_desc *iodesc = exynos_iodesc; - int iodesc_sz = ARRAY_SIZE(exynos_iodesc); -#if defined(CONFIG_OF) && defined(CONFIG_ARCH_EXYNOS5) - unsigned long root = of_get_flat_dt_root(); - - /* initialize the io descriptors we need for initialization */ - if (of_flat_dt_is_compatible(root, "samsung,exynos5440")) { - iodesc = exynos5440_iodesc; - iodesc_sz = ARRAY_SIZE(exynos5440_iodesc); - } +#ifdef CONFIG_OF + if (initial_boot_params) + of_scan_flat_dt(exynos_fdt_map_chipid, NULL); + else #endif - - iotable_init(iodesc, iodesc_sz); + iotable_init(exynos_iodesc, ARRAY_SIZE(exynos_iodesc)); if (mach_desc) iotable_init(mach_desc, size); diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index b8ea67e..ac73b27 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -56,7 +56,6 @@ #define EXYNOS4_PA_ONENAND_DMA 0x0C600000 #define EXYNOS_PA_CHIPID 0x10000000 -#define EXYNOS5440_PA_CHIPID 0x00160000 #define EXYNOS4_PA_SYSCON 0x10010000 #define EXYNOS5_PA_SYSCON 0x10050100 -- 1.7.5.4 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] ARM: dts: Add chip-id controller node on Exynos4/5 SoC 2013-02-18 7:54 [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Thomas Abraham 2013-02-18 7:54 ` [PATCH 1/2] ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree Thomas Abraham @ 2013-02-18 7:54 ` Thomas Abraham 2013-04-04 6:57 ` [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Kukjin Kim 2 siblings, 0 replies; 6+ messages in thread From: Thomas Abraham @ 2013-02-18 7:54 UTC (permalink / raw) To: linux-arm-kernel Add chip-id controller nodes for Exynos4 and Exynos5 SoCs. Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> --- arch/arm/boot/dts/exynos4.dtsi | 5 +++++ arch/arm/boot/dts/exynos5250.dtsi | 5 +++++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index 6581bb2..1a02189 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -38,6 +38,11 @@ i2c7 = &i2c_7; }; + chipid at 10000000 { + compatible = "samsung,exynos4210-chipid"; + reg = <0x10000000 0x100>; + }; + pd_mfc: mfc-power-domain at 10023C40 { compatible = "samsung,exynos4210-pd"; reg = <0x10023C40 0x20>; diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index 7c3d07a..fce773e 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -46,6 +46,11 @@ i2c8 = &i2c_8; }; + chipid at 10000000 { + compatible = "samsung,exynos4210-chipid"; + reg = <0x10000000 0x100>; + }; + pd_gsc: gsc-power-domain at 0x10044000 { compatible = "samsung,exynos4210-pd"; reg = <0x10044000 0x20>; -- 1.7.5.4 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller 2013-02-18 7:54 [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Thomas Abraham 2013-02-18 7:54 ` [PATCH 1/2] ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree Thomas Abraham 2013-02-18 7:54 ` [PATCH 2/2] ARM: dts: Add chip-id controller node on Exynos4/5 SoC Thomas Abraham @ 2013-04-04 6:57 ` Kukjin Kim 2013-04-22 11:20 ` Thomas Abraham 2 siblings, 1 reply; 6+ messages in thread From: Kukjin Kim @ 2013-04-04 6:57 UTC (permalink / raw) To: linux-arm-kernel Thomas Abraham wrote: > > This patch series allows device tree enabled platforms to setup a runtime > I/O mapping for the chip-id controller. This helps to remove statically > defined I/O mapping for the Chip-ID controller. > > Thomas Abraham (2): > ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using > device tree > ARM: dts: Add chip-id controller node on Exynos4/5 SoC > > .../arm/samsung/samsung,exynos4210-chipid.txt | 15 ++++++ > arch/arm/boot/dts/exynos4.dtsi | 5 ++ > arch/arm/boot/dts/exynos5250.dtsi | 5 ++ > arch/arm/mach-exynos/common.c | 53 +++++++++++--------- > arch/arm/mach-exynos/include/mach/map.h | 1 - > 5 files changed, 55 insertions(+), 24 deletions(-) > create mode 100644 > Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210- > chipid.txt > > -- > 1.7.5.4 Thomas, Can you update this series can support exynos5440 as well? It should be done together. - Kukjin ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller 2013-04-04 6:57 ` [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Kukjin Kim @ 2013-04-22 11:20 ` Thomas Abraham 2013-04-22 16:47 ` Kukjin Kim 0 siblings, 1 reply; 6+ messages in thread From: Thomas Abraham @ 2013-04-22 11:20 UTC (permalink / raw) To: linux-arm-kernel On 4 April 2013 12:27, Kukjin Kim <kgene.kim@samsung.com> wrote: > Thomas Abraham wrote: >> >> This patch series allows device tree enabled platforms to setup a runtime >> I/O mapping for the chip-id controller. This helps to remove statically >> defined I/O mapping for the Chip-ID controller. >> >> Thomas Abraham (2): >> ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using >> device tree >> ARM: dts: Add chip-id controller node on Exynos4/5 SoC >> >> .../arm/samsung/samsung,exynos4210-chipid.txt | 15 ++++++ >> arch/arm/boot/dts/exynos4.dtsi | 5 ++ >> arch/arm/boot/dts/exynos5250.dtsi | 5 ++ >> arch/arm/mach-exynos/common.c | 53 > +++++++++++--------- >> arch/arm/mach-exynos/include/mach/map.h | 1 - >> 5 files changed, 55 insertions(+), 24 deletions(-) >> create mode 100644 >> Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210- >> chipid.txt >> >> -- >> 1.7.5.4 > > Thomas, > > Can you update this series can support exynos5440 as well? It should be done > together. Hi Mr. Kim, Sorry for the delayed reply. This patch series is supported for Exynos5440 as well. The v2 version of this patch series has been submitted. Thanks, Thomas. > > - Kukjin > ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller 2013-04-22 11:20 ` Thomas Abraham @ 2013-04-22 16:47 ` Kukjin Kim 0 siblings, 0 replies; 6+ messages in thread From: Kukjin Kim @ 2013-04-22 16:47 UTC (permalink / raw) To: linux-arm-kernel On 04/22/13 20:20, Thomas Abraham wrote: > On 4 April 2013 12:27, Kukjin Kim<kgene.kim@samsung.com> wrote: >> Thomas Abraham wrote: >>> >>> This patch series allows device tree enabled platforms to setup a runtime >>> I/O mapping for the chip-id controller. This helps to remove statically >>> defined I/O mapping for the Chip-ID controller. >>> >>> Thomas Abraham (2): >>> ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using >>> device tree >>> ARM: dts: Add chip-id controller node on Exynos4/5 SoC >>> >>> .../arm/samsung/samsung,exynos4210-chipid.txt | 15 ++++++ >>> arch/arm/boot/dts/exynos4.dtsi | 5 ++ >>> arch/arm/boot/dts/exynos5250.dtsi | 5 ++ >>> arch/arm/mach-exynos/common.c | 53 >> +++++++++++--------- >>> arch/arm/mach-exynos/include/mach/map.h | 1 - >>> 5 files changed, 55 insertions(+), 24 deletions(-) >>> create mode 100644 >>> Documentation/devicetree/bindings/arm/samsung/samsung,exynos4210- >>> chipid.txt >>> >>> -- >>> 1.7.5.4 >> >> Thomas, >> >> Can you update this series can support exynos5440 as well? It should be done >> together. > > Hi Mr. Kim, > > Sorry for the delayed reply. This patch series is supported for > Exynos5440 as well. The v2 version of this patch series has been > submitted. > OK, thanks. - Kukjin ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-04-22 16:47 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-02-18 7:54 [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Thomas Abraham 2013-02-18 7:54 ` [PATCH 1/2] ARM: Exynos: Create virtual I/O mapping for Chip-ID controller using device tree Thomas Abraham 2013-02-18 7:54 ` [PATCH 2/2] ARM: dts: Add chip-id controller node on Exynos4/5 SoC Thomas Abraham 2013-04-04 6:57 ` [PATCH 0/2] ARM: Exynos: Add DT based I/O mapping for Chip-ID controller Kukjin Kim 2013-04-22 11:20 ` Thomas Abraham 2013-04-22 16:47 ` Kukjin Kim
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