path: root/arch/arm/include/asm/arch-bcm2835/mbox.h
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* ARM: bcm283x: move SoC headers to mach-bcm283x/include/machMasahiro Yamada2015-03-281-527/+0
| | | | | | | | Move arch/arm/include/asm/arch-bcm283x/* -> arch/arm/mach-bcm283x/include/mach/* Signed-off-by: Masahiro Yamada <> Acked-by: Stephen Warren <>
* rpi: add support for Raspberry Pi 2 model BStephen Warren2015-02-211-0/+4
| | | | | | | | USB doesn't seem to work yet; the controller detects the on-board Hub/ Ethernet device but can't read the descriptors from it. I haven't investigated yet. Signed-off-by: Stephen Warren <>
* bcm2836 SoC support (used in Raspberry Pi 2 model B)Stephen Warren2015-02-211-1/+5
| | | | | | | | | | | | The bcm2835 and bcm2836 are essentially identical, except: - The CPU is an ARM1176 v.s. a quad-core Cortex-A7. - The physical address of many IO controllers has moved. Rather than introducing a whole new bcm2836 value for $(SOC) or $(ARCH), update the existing bcm2835 code to handle the minor differences, and plumb it into the ARMv7 CPU architecture. Signed-off-by: Stephen Warren <>
* ARM: rpi: support model A+Stephen Warren2014-12-291-0/+1
| | | | | | | Add a board rev entry for the new model A+, and augment the board rev error handling code to be a bit more verbose. Signed-off-by: Stephen Warren <>
* ARM: rpi_b: detect board revisionStephen Warren2014-12-081-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | Detect the board revision early during boot, and print the decoded model name. Eventually, this information can be used for tasks such as: - Allowing/preventing USB device mode; some models have a USB device on- board so only host mode makes sense. Others connect the SoC directly to the USB connector, so device-mode might make sense. - The on-board USB hub/Ethernet requires different GPIOs to enable it, although luckily the default appears to be fine so far. - The compute module contains an on-board eMMC device, so we could store the environment there. Other models use an SD card and so don't support saving the environment (unless we store it in a file on the FAT boot partition...) Set $fdtfile based on this information. At present, the mainline Linux kernel doesn't contain a separate DTB for most models, but I hope that will change soon. Signed-off-by: Stephen Warren <> Reviewed-by: Simon Glass <> Tested-by: Simon Glass <>
* ARM: rpi_b: query internal MAC address from firmwareStephen Warren2014-10-221-0/+14
| | | | | | | | The built-in SMSC 95xx chip doesn't know its own MAC address. Instead, we must query it from the VC firmware; it's probably encoded in fuses on the BCM2835. Signed-off-by: Stephen Warren <>
* ARM: bcm2835: fix mbox POWER_STATE_RESP_ON valueStephen Warren2014-02-141-1/+1
| | | | | | Typo: The correct value is 1 not 2. Signed-off-by: Stephen Warren <>
* ARM: rpi_b: power on SDHCI and USB HW modulesStephen Warren2014-01-201-0/+48
| | | | | | | | | | Send RPC commands to the VideoCore to turn on the SDHCI and USB modules. For SDHCI this isn't needed in practice, since the firmware already turned on the power in order to load U-Boot. However, it's best to be explicit. For USB, this is necessary, since the module isn't powered otherwise. This will allow the kernel USB driver to work. Signed-off-by: Stephen Warren <>
* ARM: bcm2835: add missing mbox overscan response fieldAndre Heider2013-11-121-0/+1
| | | | | | | | Add the missing "right" field to struct bcm2835_mbox_tag_overscan. Signed-off-by: Andre Heider <> Acked-by: Stephen Warren <> Acked-by: Albert ARIBAUD <>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-241-12/+1
| | | | | | Signed-off-by: Wolfgang Denk <> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <>
* ARM: rpi_b: enable SD controller, add related env/cmdsStephen Warren2013-03-201-0/+26
| | | | | | | | | | | Enable the SD controller driver for the Raspberry Pi. Enable a number of useful MMC, partition, and filesystem-related commands. Set up the environment to provide standard locations for loading a kernel, DTB, etc. Provide a boot command that loads and executes boot.scr.uimg from the SD card; this is written considering future extensibilty to USB storage. Signed-off-by: Stephen Warren <>
* ARM: bcm2835: add mailbox driverStephen Warren2013-03-201-0/+407
The BCM2835 SoC contains (at least) two CPUs; the VideoCore (a/k/a "GPU") and the ARM CPU. The ARM CPU is often thought of as the main CPU. However, the VideoCore actually controls the initial SoC boot, and hides much of the hardware behind a protocol. This protocol is transported using the SoC's mailbox hardware module. Here, we add a very simplistic driver for the mailbox module, and define a few structures for the property messages. Signed-off-by: Stephen Warren <>
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