summaryrefslogtreecommitdiff
path: root/include/soc/bcm2835
AgeCommit message (Collapse)Author
2021-03-22firmware: raspberrypi: Introduce devm_rpi_firmware_get()Nicolas Saenz Julienne
It'll simplify the firmware handling for most consumers. Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-03-22firmware: raspberrypi: Keep count of all consumersNicolas Saenz Julienne
When unbinding the firmware device we need to make sure it has no consumers left. Otherwise we'd leave them with a firmware handle pointing at freed memory. Keep a reference count of all consumers and introduce rpi_firmware_put() which will permit automatically decrease the reference count upon unbinding consumer drivers. Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-08-18Revert "firmware: raspberrypi: Introduce vl805 init routine"Nicolas Saenz Julienne
This reverts commit fbbc5ff3f7f9f4cad562e530ae2cf5d8964fe6d3. The vl805 init routine has moved into drivers/reset/reset-raspberrypi.c Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200629161845.6021-9-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-13firmware: raspberrypi: Introduce vl805 init routineNicolas Saenz Julienne
The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip that implements xHCI. After a PCI reset, VL805's firmware may either be loaded directly from an EEPROM or, if not present, by the SoC's co-processor, VideoCore. RPi4's VideoCore OS contains both the non public firmware load logic and the VL805 firmware blob. The function this patch introduces triggers the aforementioned process. Link: https://lore.kernel.org/r/20200505161318.26200-3-nsaenzjulienne@suse.de Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org>
2020-05-13soc: bcm2835: Add notify xHCI reset propertyNicolas Saenz Julienne
The property is needed in order to trigger VL805's firmware load. Note that gap between the property introduced and the previous one is due to the properties not being defined. Link: https://lore.kernel.org/r/20200505161318.26200-2-nsaenzjulienne@suse.de Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org>
2019-01-09soc: bcm2835: sync firmware properties with downstreamStefan Wahren
Add latest firmware property tags from the latest Raspberry Pi downstream kernel. This is needed to use the reboot notify in the following commit. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2018-11-21firmware: raspberrypi: Switch to SPDX identifierStefan Wahren
Adopt the SPDX license identifier headers to ease license compliance management. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2018-06-21ARM: bcm2835: Add GET_THROTTLED firmware propertyStefan Wahren
Recent Raspberry Pi firmware provides a mailbox property to detect under-voltage conditions. Here is the current definition. The u32 value returned by the firmware is divided into 2 parts: - lower 16-bits are the live value - upper 16-bits are the history or sticky value Bits: 0: undervoltage 1: arm frequency capped 2: currently throttled 16: undervoltage has occurred 17: arm frequency capped has occurred 18: throttling has occurred Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net>
2018-04-16soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failureGeert Uytterhoeven
If CONFIG_RASPBERRYPI_FIRMWARE=n: drivers/gpio/gpio-raspberrypi-exp.c: In function ‘rpi_exp_gpio_get_polarity’: drivers/gpio/gpio-raspberrypi-exp.c:71: warning: ‘get.polarity’ is used uninitialized in this function drivers/gpio/gpio-raspberrypi-exp.c: In function ‘rpi_exp_gpio_get_direction’: drivers/gpio/gpio-raspberrypi-exp.c:150: warning: ‘get.direction’ is used uninitialized in this function The dummy firmware interface functions return 0, which means success, causing subsequent code to make use of the never initialized output parameter. Fix this by making the dummy functions return an error code (-ENOSYS) instead. Note that this assumes the firmware always fills in the requested data in the CONFIG_RASPBERRYPI_FIRMWARE=y case. Fixes: d45f1a563b92dac7 ("staging: vc04_services: fix up rpi firmware functions") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-02-22soc: bcm2835: sync firmware properties with downstreamBaruch Siach
Add latest firmware property tags from the latest Raspberry Pi downstream kernel. This is needed for the GPIO tags, so we can control the GPIO multiplexor lines. Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-16staging: vc04_services: fix up rpi firmware functionsGreg Kroah-Hartman
The raspberrypi-firmware.h file should provide empty functions if we aren't building in that option. This makes it easier to test-build code, and not have odd warnings about unused variables if you just try to #define away the functions. Cc: Daniel Stone <daniels@collabora.com> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: Pranith Kumar <bobby.prani@gmail.com> Cc: popcornmix <popcornmix@gmail.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16ARM: bcm2835: Add #define for VCHIQ property message.Eric Anholt
This comes from the downstream tree and is needed for the new VCHIQ driver in staging. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-21ARM: bcm2835: Define two new packets from the latest firmware.Eric Anholt
These packets give us direct access to the firmware's power management code, as opposed to GET/SET_POWER_STATE packets that only had a couple of domains implemented. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Kevin Hilman <khilman@linaro.org>
2015-10-24ARM: bcm2835: add mutual inclusion protectionAlexander Aring
This patch adds mutual inclusion protection for the rpi firmware header. Cc: Eric Anholt <eric@anholt.net> Cc: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-10-14ARM: bcm2835: Add the Raspberry Pi firmware driverEric Anholt
This gives us a function for making mailbox property channel requests of the firmware, which is most notable in that it will let us get and set clock rates. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Stephen Warren <swarren@wwwdotorg.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 11:48:42 +0000