From 0834f9f07631a8857a96614e37cb21e1dc84ffb4 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 25 Feb 2016 10:14:05 +0000 Subject: brcm2708: remove linux 4.1 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas SVN-Revision: 48766 --- ...2835-Add-the-Raspberry-Pi-firmware-driver.patch | 426 --------------------- 1 file changed, 426 deletions(-) delete mode 100644 target/linux/brcm2708/patches-4.1/0077-ARM-bcm2835-Add-the-Raspberry-Pi-firmware-driver.patch (limited to 'target/linux/brcm2708/patches-4.1/0077-ARM-bcm2835-Add-the-Raspberry-Pi-firmware-driver.patch') diff --git a/target/linux/brcm2708/patches-4.1/0077-ARM-bcm2835-Add-the-Raspberry-Pi-firmware-driver.patch b/target/linux/brcm2708/patches-4.1/0077-ARM-bcm2835-Add-the-Raspberry-Pi-firmware-driver.patch deleted file mode 100644 index afc651204d..0000000000 --- a/target/linux/brcm2708/patches-4.1/0077-ARM-bcm2835-Add-the-Raspberry-Pi-firmware-driver.patch +++ /dev/null @@ -1,426 +0,0 @@ -From 9384f8ab274dc6b34a6ce18e574cfa38e751f1d4 Mon Sep 17 00:00:00 2001 -From: Eric Anholt -Date: Thu, 4 Jun 2015 13:11:46 -0700 -Subject: [PATCH 077/222] ARM: bcm2835: Add the Raspberry Pi firmware driver - -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 ---- - drivers/firmware/Kconfig | 7 + - drivers/firmware/Makefile | 1 + - drivers/firmware/raspberrypi.c | 260 +++++++++++++++++++++++++++++ - include/soc/bcm2835/raspberrypi-firmware.h | 115 +++++++++++++ - 4 files changed, 383 insertions(+) - create mode 100644 drivers/firmware/raspberrypi.c - create mode 100644 include/soc/bcm2835/raspberrypi-firmware.h - ---- a/drivers/firmware/Kconfig -+++ b/drivers/firmware/Kconfig -@@ -136,6 +136,13 @@ config QCOM_SCM - bool - depends on ARM || ARM64 - -+config RASPBERRYPI_FIRMWARE -+ tristate "Raspberry Pi Firmware Driver" -+ depends on BCM2835_MBOX -+ help -+ This option enables support for communicating with the firmware on the -+ Raspberry Pi. -+ - source "drivers/firmware/google/Kconfig" - source "drivers/firmware/efi/Kconfig" - ---- a/drivers/firmware/Makefile -+++ b/drivers/firmware/Makefile -@@ -13,6 +13,7 @@ obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o - obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o - obj-$(CONFIG_QCOM_SCM) += qcom_scm.o - CFLAGS_qcom_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1) -+obj-$(CONFIG_RASPBERRYPI_FIRMWARE) += raspberrypi.o - - obj-$(CONFIG_GOOGLE_FIRMWARE) += google/ - obj-$(CONFIG_EFI) += efi/ ---- /dev/null -+++ b/drivers/firmware/raspberrypi.c -@@ -0,0 +1,260 @@ -+/* -+ * Defines interfaces for interacting wtih the Raspberry Pi firmware's -+ * property channel. -+ * -+ * Copyright © 2015 Broadcom -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf)) -+#define MBOX_CHAN(msg) ((msg) & 0xf) -+#define MBOX_DATA28(msg) ((msg) & ~0xf) -+#define MBOX_CHAN_PROPERTY 8 -+ -+struct rpi_firmware { -+ struct mbox_client cl; -+ struct mbox_chan *chan; /* The property channel. */ -+ struct completion c; -+ u32 enabled; -+}; -+ -+static DEFINE_MUTEX(transaction_lock); -+ -+static void response_callback(struct mbox_client *cl, void *msg) -+{ -+ struct rpi_firmware *fw = container_of(cl, struct rpi_firmware, cl); -+ complete(&fw->c); -+} -+ -+/* -+ * Sends a request to the firmware through the BCM2835 mailbox driver, -+ * and synchronously waits for the reply. -+ */ -+static int -+rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data) -+{ -+ u32 message = MBOX_MSG(chan, data); -+ int ret; -+ -+ WARN_ON(data & 0xf); -+ -+ mutex_lock(&transaction_lock); -+ reinit_completion(&fw->c); -+ ret = mbox_send_message(fw->chan, &message); -+ if (ret >= 0) { -+ wait_for_completion(&fw->c); -+ ret = 0; -+ } else { -+ dev_err(fw->cl.dev, "mbox_send_message returned %d\n", ret); -+ } -+ mutex_unlock(&transaction_lock); -+ -+ return ret; -+} -+ -+/** -+ * rpi_firmware_property_list - Submit firmware property list -+ * @fw: Pointer to firmware structure from rpi_firmware_get(). -+ * @data: Buffer holding tags. -+ * @tag_size: Size of tags buffer. -+ * -+ * Submits a set of concatenated tags to the VPU firmware through the -+ * mailbox property interface. -+ * -+ * The buffer header and the ending tag are added by this function and -+ * don't need to be supplied, just the actual tags for your operation. -+ * See struct rpi_firmware_property_tag_header for the per-tag -+ * structure. -+ */ -+int rpi_firmware_property_list(struct rpi_firmware *fw, -+ void *data, size_t tag_size) -+{ -+ size_t size = tag_size + 12; -+ u32 *buf; -+ dma_addr_t bus_addr; -+ int ret; -+ -+ /* Packets are processed a dword at a time. */ -+ if (size & 3) -+ return -EINVAL; -+ -+ buf = dma_alloc_coherent(fw->cl.dev, PAGE_ALIGN(size), &bus_addr, -+ GFP_ATOMIC); -+ if (!buf) -+ return -ENOMEM; -+ -+ /* The firmware will error out without parsing in this case. */ -+ WARN_ON(size >= 1024 * 1024); -+ -+ buf[0] = size; -+ buf[1] = RPI_FIRMWARE_STATUS_REQUEST; -+ memcpy(&buf[2], data, tag_size); -+ buf[size / 4 - 1] = RPI_FIRMWARE_PROPERTY_END; -+ wmb(); -+ -+ ret = rpi_firmware_transaction(fw, MBOX_CHAN_PROPERTY, bus_addr); -+ -+ rmb(); -+ memcpy(data, &buf[2], tag_size); -+ if (ret == 0 && buf[1] != RPI_FIRMWARE_STATUS_SUCCESS) { -+ /* -+ * The tag name here might not be the one causing the -+ * error, if there were multiple tags in the request. -+ * But single-tag is the most common, so go with it. -+ */ -+ dev_err(fw->cl.dev, "Request 0x%08x returned status 0x%08x\n", -+ buf[2], buf[1]); -+ ret = -EINVAL; -+ } -+ -+ dma_free_coherent(fw->cl.dev, PAGE_ALIGN(size), buf, bus_addr); -+ -+ return ret; -+} -+EXPORT_SYMBOL_GPL(rpi_firmware_property_list); -+ -+/** -+ * rpi_firmware_property - Submit single firmware property -+ * @fw: Pointer to firmware structure from rpi_firmware_get(). -+ * @tag: One of enum_mbox_property_tag. -+ * @tag_data: Tag data buffer. -+ * @buf_size: Buffer size. -+ * -+ * Submits a single tag to the VPU firmware through the mailbox -+ * property interface. -+ * -+ * This is a convenience wrapper around -+ * rpi_firmware_property_list() to avoid some of the -+ * boilerplate in property calls. -+ */ -+int rpi_firmware_property(struct rpi_firmware *fw, -+ u32 tag, void *tag_data, size_t buf_size) -+{ -+ /* Single tags are very small (generally 8 bytes), so the -+ * stack should be safe. -+ */ -+ u8 data[buf_size + sizeof(struct rpi_firmware_property_tag_header)]; -+ struct rpi_firmware_property_tag_header *header = -+ (struct rpi_firmware_property_tag_header *)data; -+ int ret; -+ -+ header->tag = tag; -+ header->buf_size = buf_size; -+ header->req_resp_size = 0; -+ memcpy(data + sizeof(struct rpi_firmware_property_tag_header), -+ tag_data, buf_size); -+ -+ ret = rpi_firmware_property_list(fw, &data, sizeof(data)); -+ memcpy(tag_data, -+ data + sizeof(struct rpi_firmware_property_tag_header), -+ buf_size); -+ -+ return ret; -+} -+EXPORT_SYMBOL_GPL(rpi_firmware_property); -+ -+static void -+rpi_firmware_print_firmware_revision(struct rpi_firmware *fw) -+{ -+ u32 packet; -+ int ret = rpi_firmware_property(fw, -+ RPI_FIRMWARE_GET_FIRMWARE_REVISION, -+ &packet, sizeof(packet)); -+ -+ if (ret == 0) { -+ struct tm tm; -+ -+ time_to_tm(packet, 0, &tm); -+ -+ dev_info(fw->cl.dev, -+ "Attached to firmware from %04ld-%02d-%02d %02d:%02d\n", -+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, -+ tm.tm_hour, tm.tm_min); -+ } -+} -+ -+static int rpi_firmware_probe(struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ struct rpi_firmware *fw; -+ -+ fw = devm_kzalloc(dev, sizeof(*fw), GFP_KERNEL); -+ if (!fw) -+ return -ENOMEM; -+ -+ fw->cl.dev = dev; -+ fw->cl.rx_callback = response_callback; -+ fw->cl.tx_block = true; -+ -+ fw->chan = mbox_request_channel(&fw->cl, 0); -+ if (IS_ERR(fw->chan)) { -+ int ret = PTR_ERR(fw->chan); -+ if (ret != -EPROBE_DEFER) -+ dev_err(dev, "Failed to get mbox channel: %d\n", ret); -+ return ret; -+ } -+ -+ init_completion(&fw->c); -+ -+ platform_set_drvdata(pdev, fw); -+ -+ rpi_firmware_print_firmware_revision(fw); -+ -+ return 0; -+} -+ -+static int rpi_firmware_remove(struct platform_device *pdev) -+{ -+ struct rpi_firmware *fw = platform_get_drvdata(pdev); -+ -+ mbox_free_channel(fw->chan); -+ -+ return 0; -+} -+ -+/** -+ * rpi_firmware_get - Get pointer to rpi_firmware structure. -+ * @firmware_node: Pointer to the firmware Device Tree node. -+ * -+ * Returns NULL is the firmware device is not ready. -+ */ -+struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node) -+{ -+ struct platform_device *pdev = of_find_device_by_node(firmware_node); -+ -+ if (!pdev) -+ return NULL; -+ -+ return platform_get_drvdata(pdev); -+} -+EXPORT_SYMBOL_GPL(rpi_firmware_get); -+ -+static const struct of_device_id rpi_firmware_of_match[] = { -+ { .compatible = "raspberrypi,bcm2835-firmware", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, rpi_firmware_of_match); -+ -+static struct platform_driver rpi_firmware_driver = { -+ .driver = { -+ .name = "raspberrypi-firmware", -+ .of_match_table = rpi_firmware_of_match, -+ }, -+ .probe = rpi_firmware_probe, -+ .remove = rpi_firmware_remove, -+}; -+module_platform_driver(rpi_firmware_driver); -+ -+MODULE_AUTHOR("Eric Anholt "); -+MODULE_DESCRIPTION("Raspberry Pi firmware driver"); -+MODULE_LICENSE("GPL v2"); ---- /dev/null -+++ b/include/soc/bcm2835/raspberrypi-firmware.h -@@ -0,0 +1,115 @@ -+/* -+ * Copyright © 2015 Broadcom -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+ -+struct rpi_firmware; -+ -+enum rpi_firmware_property_status { -+ RPI_FIRMWARE_STATUS_REQUEST = 0, -+ RPI_FIRMWARE_STATUS_SUCCESS = 0x80000000, -+ RPI_FIRMWARE_STATUS_ERROR = 0x80000001, -+}; -+ -+/** -+ * struct rpi_firmware_property_tag_header - Firmware property tag header -+ * @tag: One of enum_mbox_property_tag. -+ * @buf_size: The number of bytes in the value buffer following this -+ * struct. -+ * @req_resp_size: On submit, the length of the request (though it doesn't -+ * appear to be currently used by the firmware). On return, -+ * the length of the response (always 4 byte aligned), with -+ * the low bit set. -+ */ -+struct rpi_firmware_property_tag_header { -+ u32 tag; -+ u32 buf_size; -+ u32 req_resp_size; -+}; -+ -+enum rpi_firmware_property_tag { -+ RPI_FIRMWARE_PROPERTY_END = 0, -+ RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001, -+ -+ RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010, -+ RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011, -+ -+ RPI_FIRMWARE_GET_BOARD_MODEL = 0x00010001, -+ RPI_FIRMWARE_GET_BOARD_REVISION = 0x00010002, -+ RPI_FIRMWARE_GET_BOARD_MAC_ADDRESS = 0x00010003, -+ RPI_FIRMWARE_GET_BOARD_SERIAL = 0x00010004, -+ RPI_FIRMWARE_GET_ARM_MEMORY = 0x00010005, -+ RPI_FIRMWARE_GET_VC_MEMORY = 0x00010006, -+ RPI_FIRMWARE_GET_CLOCKS = 0x00010007, -+ RPI_FIRMWARE_GET_POWER_STATE = 0x00020001, -+ RPI_FIRMWARE_GET_TIMING = 0x00020002, -+ RPI_FIRMWARE_SET_POWER_STATE = 0x00028001, -+ RPI_FIRMWARE_GET_CLOCK_STATE = 0x00030001, -+ RPI_FIRMWARE_GET_CLOCK_RATE = 0x00030002, -+ RPI_FIRMWARE_GET_VOLTAGE = 0x00030003, -+ RPI_FIRMWARE_GET_MAX_CLOCK_RATE = 0x00030004, -+ RPI_FIRMWARE_GET_MAX_VOLTAGE = 0x00030005, -+ RPI_FIRMWARE_GET_TEMPERATURE = 0x00030006, -+ RPI_FIRMWARE_GET_MIN_CLOCK_RATE = 0x00030007, -+ RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008, -+ RPI_FIRMWARE_GET_TURBO = 0x00030009, -+ RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a, -+ RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c, -+ RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d, -+ RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e, -+ RPI_FIRMWARE_RELEASE_MEMORY = 0x0003000f, -+ RPI_FIRMWARE_EXECUTE_CODE = 0x00030010, -+ RPI_FIRMWARE_EXECUTE_QPU = 0x00030011, -+ RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012, -+ RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014, -+ RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020, -+ RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001, -+ RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002, -+ RPI_FIRMWARE_SET_VOLTAGE = 0x00038003, -+ RPI_FIRMWARE_SET_TURBO = 0x00038009, -+ -+ /* Dispmanx TAGS */ -+ RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001, -+ RPI_FIRMWARE_FRAMEBUFFER_BLANK = 0x00040002, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_PHYSICAL_WIDTH_HEIGHT = 0x00040003, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_WIDTH_HEIGHT = 0x00040004, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_DEPTH = 0x00040005, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_PIXEL_ORDER = 0x00040006, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_ALPHA_MODE = 0x00040007, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH = 0x00040008, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a, -+ RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b, -+ RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_DEPTH = 0x00044005, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_PIXEL_ORDER = 0x00044006, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_ALPHA_MODE = 0x00044007, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a, -+ RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER = 0x00048006, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE = 0x00048007, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a, -+ RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b, -+ -+ RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001, -+ RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001, -+}; -+ -+int rpi_firmware_property(struct rpi_firmware *fw, -+ u32 tag, void *data, size_t len); -+int rpi_firmware_property_list(struct rpi_firmware *fw, -+ void *data, size_t tag_size); -+struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node); -- cgit v1.2.3