diff options
Diffstat (limited to 'Documentation/arm')
| -rw-r--r-- | Documentation/arm/00-INDEX | 16 | ||||
| -rw-r--r-- | Documentation/arm/Marvell/README | 42 | ||||
| -rw-r--r-- | Documentation/arm/Samsung-S3C24XX/GPIO.txt | 13 | ||||
| -rw-r--r-- | Documentation/arm/memory.txt | 9 | ||||
| -rw-r--r-- | Documentation/arm/sti/stih407-overview.txt | 18 | ||||
| -rw-r--r-- | Documentation/arm/sunxi/README | 26 | ||||
| -rw-r--r-- | Documentation/arm/uefi.txt | 64 |
7 files changed, 166 insertions, 22 deletions
diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX index 36420e116c9..3b08bc2b04c 100644 --- a/Documentation/arm/00-INDEX +++ b/Documentation/arm/00-INDEX @@ -4,6 +4,8 @@ Booting - requirements for booting Interrupts - ARM Interrupt subsystem documentation +IXP4xx + - Intel IXP4xx Network processor. msm - MSM specific documentation Netwinder @@ -24,8 +26,16 @@ SPEAr - ST SPEAr platform Linux Overview VFP/ - Release notes for Linux Kernel Vector Floating Point support code +cluster-pm-race-avoidance.txt + - Algorithm for CPU and Cluster setup/teardown empeg/ - Ltd's Empeg MP3 Car Audio Player +firmware.txt + - Secure firmware registration and calling. +kernel_mode_neon.txt + - How to use NEON instructions in kernel mode +kernel_user_helpers.txt + - Helper functions in kernel space made available for userspace. mem_alignment - alignment abort handler documentation memory.txt @@ -34,3 +44,9 @@ nwfpe/ - NWFPE floating point emulator documentation swp_emulation - SWP/SWPB emulation handler/logging description +tcm.txt + - ARM Tightly Coupled Memory +uefi.txt + - [U]EFI configuration and runtime services documentation +vlocks.txt + - Voting locks, low-level mechanism relying on memory system atomic writes. diff --git a/Documentation/arm/Marvell/README b/Documentation/arm/Marvell/README index 8f08a86e03b..2cce5401e32 100644 --- a/Documentation/arm/Marvell/README +++ b/Documentation/arm/Marvell/README @@ -83,13 +83,24 @@ EBU Armada family 88F6710 88F6707 88F6W11 + Product Brief: http://www.marvell.com/embedded-processors/armada-300/assets/Marvell_ARMADA_370_SoC.pdf + + Armada 375 Flavors: + 88F6720 + Product Brief: http://www.marvell.com/embedded-processors/armada-300/assets/ARMADA_375_SoC-01_product_brief.pdf + + Armada 380/385 Flavors: + 88F6810 + 88F6820 + 88F6828 Armada XP Flavors: MV78230 MV78260 MV78460 + NOTE: not to be confused with the non-SMP 78xx0 SoCs + Product Brief: http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf - Product Brief: http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf No public datasheet available. Core: Sheeva ARMv7 compatible @@ -210,6 +221,35 @@ MMP/MMP2 family (communication processor) Linux kernel mach directory: arch/arm/mach-mmp Linux kernel plat directory: arch/arm/plat-pxa +Berlin family (Digital Entertainment) +------------------------------------- + + Flavors: + 88DE3005, Armada 1500-mini + Design name: BG2CD + Core: ARM Cortex-A9, PL310 L2CC + Homepage: http://www.marvell.com/digital-entertainment/armada-1500-mini/ + 88DE3100, Armada 1500 + Design name: BG2 + Core: Marvell PJ4B (ARMv7), Tauros3 L2CC + Homepage: http://www.marvell.com/digital-entertainment/armada-1500/ + Product Brief: http://www.marvell.com/digital-entertainment/armada-1500/assets/Marvell-ARMADA-1500-Product-Brief.pdf + 88DE3114, Armada 1500 Pro + Design name: BG2-Q + Core: Quad Core ARM Cortex-A9, PL310 L2CC + Homepage: http://www.marvell.com/digital-entertainment/armada-1500-pro/ + Product Brief: http://www.marvell.com/digital-entertainment/armada-1500-pro/assets/Marvell_ARMADA_1500_PRO-01_product_brief.pdf + 88DE???? + Design name: BG3 + Core: ARM Cortex-A15, CA15 integrated L2CC + + Homepage: http://www.marvell.com/digital-entertainment/ + Directory: arch/arm/mach-berlin + + Comments: + * This line of SoCs is based on Marvell Sheeva or ARM Cortex CPUs + with Synopsys DesignWare (IRQ, GPIO, Timers, ...) and PXA IP (SDHCI, USB, ETH, ...). + Long-term plans --------------- diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt index 8b46c79679c..0ebd7e2244d 100644 --- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt +++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt @@ -85,21 +85,10 @@ between the calls. Headers ------- - See arch/arm/mach-s3c2410/include/mach/regs-gpio.h for the list + See arch/arm/mach-s3c24xx/include/mach/regs-gpio.h for the list of GPIO pins, and the configuration values for them. This is included by using #include <mach/regs-gpio.h> - The GPIO management functions are defined in the hardware - header arch/arm/mach-s3c2410/include/mach/hardware.h which can be - included by #include <mach/hardware.h> - - A useful amount of documentation can be found in the hardware - header on how the GPIO functions (and others) work. - - Whilst a number of these functions do make some checks on what - is passed to them, for speed of use, they may not always ensure - that the user supplied data to them is correct. - PIN Numbers ----------- diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt index 4bfb9ffbdbc..38dc06d0a79 100644 --- a/Documentation/arm/memory.txt +++ b/Documentation/arm/memory.txt @@ -41,16 +41,9 @@ fffe8000 fffeffff DTCM mapping area for platforms with fffe0000 fffe7fff ITCM mapping area for platforms with ITCM mounted inside the CPU. -fff00000 fffdffff Fixmap mapping region. Addresses provided +ffc00000 ffdfffff Fixmap mapping region. Addresses provided by fix_to_virt() will be located here. -ffc00000 ffefffff DMA memory mapping region. Memory returned - by the dma_alloc_xxx functions will be - dynamically mapped here. - -ff000000 ffbfffff Reserved for future expansion of DMA - mapping region. - fee00000 feffffff Mapping of PCI I/O space. This is a static mapping within the vmalloc space. diff --git a/Documentation/arm/sti/stih407-overview.txt b/Documentation/arm/sti/stih407-overview.txt new file mode 100644 index 00000000000..3343f32f58b --- /dev/null +++ b/Documentation/arm/sti/stih407-overview.txt @@ -0,0 +1,18 @@ + STiH407 Overview + ================ + +Introduction +------------ + + The STiH407 is the new generation of SoC for Multi-HD, AVC set-top boxes + and server/connected client application for satellite, cable, terrestrial + and IP-STB markets. + + Features + - ARM Cortex-A9 1.5 GHz dual core CPU (28nm) + - SATA2, USB 3.0, PCIe, Gbit Ethernet + + Document Author + --------------- + + Maxime Coquelin <maxime.coquelin@st.com>, (c) 2014 ST Microelectronics diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README index e3f93fb9224..7945238453e 100644 --- a/Documentation/arm/sunxi/README +++ b/Documentation/arm/sunxi/README @@ -10,6 +10,10 @@ SunXi family Linux kernel mach directory: arch/arm/mach-sunxi Flavors: + * ARM926 based SoCs + - Allwinner F20 (sun3i) + + Not Supported + * ARM Cortex-A8 based SoCs - Allwinner A10 (sun4i) + Datasheet @@ -25,4 +29,24 @@ SunXi family + Datasheet http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf + User Manual - http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-08-08%29.pdf + http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-01-08%29.pdf + + * Dual ARM Cortex-A7 based SoCs + - Allwinner A20 (sun7i) + + User Manual + http://dl.linux-sunxi.org/A20/A20%20User%20Manual%202013-03-22.pdf + + - Allwinner A23 + + Not Supported + + * Quad ARM Cortex-A7 based SoCs + - Allwinner A31 (sun6i) + + Datasheet + http://dl.linux-sunxi.org/A31/A31%20Datasheet%20-%20v1.00%20(2012-12-24).pdf + + - Allwinner A31s (sun6i) + + Not Supported + + * Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs + - Allwinner A80 + + Not Supported
\ No newline at end of file diff --git a/Documentation/arm/uefi.txt b/Documentation/arm/uefi.txt new file mode 100644 index 00000000000..d60030a1b90 --- /dev/null +++ b/Documentation/arm/uefi.txt @@ -0,0 +1,64 @@ +UEFI, the Unified Extensible Firmware Interface, is a specification +governing the behaviours of compatible firmware interfaces. It is +maintained by the UEFI Forum - http://www.uefi.org/. + +UEFI is an evolution of its predecessor 'EFI', so the terms EFI and +UEFI are used somewhat interchangeably in this document and associated +source code. As a rule, anything new uses 'UEFI', whereas 'EFI' refers +to legacy code or specifications. + +UEFI support in Linux +===================== +Booting on a platform with firmware compliant with the UEFI specification +makes it possible for the kernel to support additional features: +- UEFI Runtime Services +- Retrieving various configuration information through the standardised + interface of UEFI configuration tables. (ACPI, SMBIOS, ...) + +For actually enabling [U]EFI support, enable: +- CONFIG_EFI=y +- CONFIG_EFI_VARS=y or m + +The implementation depends on receiving information about the UEFI environment +in a Flattened Device Tree (FDT) - so is only available with CONFIG_OF. + +UEFI stub +========= +The "stub" is a feature that extends the Image/zImage into a valid UEFI +PE/COFF executable, including a loader application that makes it possible to +load the kernel directly from the UEFI shell, boot menu, or one of the +lightweight bootloaders like Gummiboot or rEFInd. + +The kernel image built with stub support remains a valid kernel image for +booting in non-UEFI environments. + +UEFI kernel support on ARM +========================== +UEFI kernel support on the ARM architectures (arm and arm64) is only available +when boot is performed through the stub. + +When booting in UEFI mode, the stub deletes any memory nodes from a provided DT. +Instead, the kernel reads the UEFI memory map. + +The stub populates the FDT /chosen node with (and the kernel scans for) the +following parameters: +________________________________________________________________________________ +Name | Size | Description +================================================================================ +linux,uefi-system-table | 64-bit | Physical address of the UEFI System Table. +-------------------------------------------------------------------------------- +linux,uefi-mmap-start | 64-bit | Physical address of the UEFI memory map, + | | populated by the UEFI GetMemoryMap() call. +-------------------------------------------------------------------------------- +linux,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map + | | pointed to in previous entry. +-------------------------------------------------------------------------------- +linux,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI + | | memory map. +-------------------------------------------------------------------------------- +linux,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format. +-------------------------------------------------------------------------------- +linux,uefi-stub-kern-ver | string | Copy of linux_banner from build. +-------------------------------------------------------------------------------- + +For verbose debug messages, specify 'uefi_debug' on the kernel command line. |