brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 135 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0447-staging-vc04_services-Use-correct-cache-line-size.patch b/target/linux/bcm27xx/patches-4.19/950-0447-staging-vc04_services-Use-correct-cache-line-size.patch
new file mode 100644
index 0000000000..c6b0606087
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0447-staging-vc04_services-Use-correct-cache-line-size.patch
@@ -0,0 +1,135 @@
+From 63079fbe20c954140f8eb61f858b0774890f301c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 17 Sep 2018 09:22:21 +0100
+Subject: [PATCH] staging/vc04_services: Use correct cache line size
+
+Use the compatible string in the DTB to select the correct cache line
+size for the SoC - 32 for BCM2835, and 64 for BCM2836 and BCM2837.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ .../interface/vchiq_arm/vchiq_2835_arm.c      | 15 ++------
+ .../interface/vchiq_arm/vchiq_arm.c           | 35 +++++++++++++------
+ .../interface/vchiq_arm/vchiq_arm.h           |  5 +++
+ 3 files changed, 33 insertions(+), 22 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+@@ -117,7 +117,8 @@ free_pagelist(struct vchiq_pagelist_info
+ int vchiq_platform_init(struct platform_device *pdev, VCHIQ_STATE_T *state)
+ {
+ 	struct device *dev = &pdev->dev;
+-	struct rpi_firmware *fw = platform_get_drvdata(pdev);
++	struct vchiq_drvdata *drvdata = platform_get_drvdata(pdev);
++	struct rpi_firmware *fw = drvdata->fw;
+ 	VCHIQ_SLOT_ZERO_T *vchiq_slot_zero;
+ 	struct resource *res;
+ 	void *slot_mem;
+@@ -135,17 +136,7 @@ int vchiq_platform_init(struct platform_
+ 	if (err < 0)
+ 		return err;
+ 
+-	/*
+-	 * The tempting L1_CACHE_BYTES macro doesn't work in the case of
+-	 * a kernel built with bcm2835_defconfig running on a BCM2836/7
+-	 * processor, hence the need for a runtime check. The dcache line size
+-	 * is encoded in one of the coprocessor registers, but there is no
+-	 * convenient way to access it short of embedded assembler, hence
+-	 * the use of read_cpuid_id(). The following test evaluates to true
+-	 * on a BCM2835 showing that it is ARMv6-ish, whereas
+-	 * cpu_architecture() will indicate that it is an ARMv7.
+-	 */
+-	g_cache_line_size = ((read_cpuid_id() & 0x7f000) == 0x7b000) ? 32 : 64;
++	g_cache_line_size = drvdata->cache_line_size;
+ 	g_fragments_size = 2 * g_cache_line_size;
+ 
+ 	/* Allocate space for the channels in coherent memory */
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -173,6 +173,14 @@ static struct platform_device *bcm2835_c
+ static struct platform_device *bcm2835_codec;
+ static struct platform_device *vcsm_cma;
+ 
++static struct vchiq_drvdata bcm2835_drvdata = {
++	.cache_line_size = 32,
++};
++
++static struct vchiq_drvdata bcm2836_drvdata = {
++	.cache_line_size = 64,
++};
++
+ static const char *const ioctl_names[] = {
+ 	"CONNECT",
+ 	"SHUTDOWN",
+@@ -3607,12 +3615,25 @@ vchiq_register_child(struct platform_dev
+ 	return new_dev;
+ }
+ 
++static const struct of_device_id vchiq_of_match[] = {
++	{ .compatible = "brcm,bcm2835-vchiq", .data = &bcm2835_drvdata },
++	{ .compatible = "brcm,bcm2836-vchiq", .data = &bcm2836_drvdata },
++	{},
++};
++MODULE_DEVICE_TABLE(of, vchiq_of_match);
++
+ static int vchiq_probe(struct platform_device *pdev)
+ {
+ 	struct device_node *fw_node;
+-	struct rpi_firmware *fw;
++	const struct of_device_id *of_id;
++	struct vchiq_drvdata *drvdata;
+ 	int err;
+ 
++	of_id = of_match_node(vchiq_of_match, pdev->dev.of_node);
++	drvdata = (struct vchiq_drvdata *)of_id->data;
++	if (!drvdata)
++		return -EINVAL;
++
+ 	fw_node = of_find_compatible_node(NULL, NULL,
+ 					  "raspberrypi,bcm2835-firmware");
+ 	if (!fw_node) {
+@@ -3620,12 +3641,12 @@ static int vchiq_probe(struct platform_d
+ 		return -ENOENT;
+ 	}
+ 
+-	fw = rpi_firmware_get(fw_node);
++	drvdata->fw = rpi_firmware_get(fw_node);
+ 	of_node_put(fw_node);
+-	if (!fw)
++	if (!drvdata->fw)
+ 		return -EPROBE_DEFER;
+ 
+-	platform_set_drvdata(pdev, fw);
++	platform_set_drvdata(pdev, drvdata);
+ 
+ 	err = vchiq_platform_init(pdev, &g_state);
+ 	if (err != 0)
+@@ -3703,12 +3724,6 @@ static int vchiq_remove(struct platform_
+ 	return 0;
+ }
+ 
+-static const struct of_device_id vchiq_of_match[] = {
+-	{ .compatible = "brcm,bcm2835-vchiq", },
+-	{},
+-};
+-MODULE_DEVICE_TABLE(of, vchiq_of_match);
+-
+ static struct platform_driver vchiq_driver = {
+ 	.driver = {
+ 		.name = "bcm2835_vchiq",
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
+@@ -123,6 +123,11 @@ typedef struct vchiq_arm_state_struct {
+ 
+ } VCHIQ_ARM_STATE_T;
+ 
++struct vchiq_drvdata {
++	const unsigned int cache_line_size;
++	struct rpi_firmware *fw;
++};
++
+ extern int vchiq_arm_log_level;
+ extern int vchiq_susp_log_level;
+