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sunxi: board: add a config option to fixup a Bluetooth address

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Some Bluetooth controllers, like the BCM4345C5 of the Orange Pi 3,
ship with the controller default address.

Add a config option to fix it up so it can function properly.

Signed-off-by: Andre Heider <a.heider@gmail.com>
Tested-by: Ondrej Jirman <megous@megous.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
[rebased]
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Andre Heider 2021-10-01 19:29:00 +01:00 committed by Andre Przywara
parent 928f4f4868
commit 9267ff89ee
2 changed files with 46 additions and 0 deletions
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11
arch/arm/mach-sunxi/Kconfig
View file

@ -1016,4 +1016,15 @@ config PINEPHONE_DT_SELECTION
Enable this option to automatically select the device tree for the
correct PinePhone hardware revision during boot.
config BLUETOOTH_DT_DEVICE_FIXUP
string "Fixup the Bluetooth controller address"
default ""
help
This option specifies the DT compatible name of the Bluetooth
controller for which to set the "local-bd-address" property.
Set this option if your device ships with the Bluetooth controller
default address.
The used address is "bdaddr" if set, and "ethaddr" with the LSB
flipped elsewise.
endif

35
board/sunxi/board.c
View file

@ -39,6 +39,7 @@
#include <u-boot/crc.h>
#include <env_internal.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include <nand.h>
#include <net.h>
#include <spl.h>
@ -913,6 +914,38 @@ int board_late_init(void)
return 0;
}
static void bluetooth_dt_fixup(void *blob)
{
/* Some devices ship with a Bluetooth controller default address.
* Set a valid address through the device tree.
*/
uchar tmp[ETH_ALEN], bdaddr[ETH_ALEN];
unsigned int sid[4];
int i;
if (!CONFIG_BLUETOOTH_DT_DEVICE_FIXUP[0])
return;
if (eth_env_get_enetaddr("bdaddr", tmp)) {
/* Convert between the binary formats of the corresponding stacks */
for (i = 0; i < ETH_ALEN; ++i)
bdaddr[i] = tmp[ETH_ALEN - i - 1];
} else {
if (!get_unique_sid(sid))
return;
bdaddr[0] = ((sid[3] >> 0) & 0xff) ^ 1;
bdaddr[1] = (sid[3] >> 8) & 0xff;
bdaddr[2] = (sid[3] >> 16) & 0xff;
bdaddr[3] = (sid[3] >> 24) & 0xff;
bdaddr[4] = (sid[0] >> 0) & 0xff;
bdaddr[5] = 0x02;
}
do_fixup_by_compat(blob, CONFIG_BLUETOOTH_DT_DEVICE_FIXUP,
"local-bd-address", bdaddr, ETH_ALEN, 1);
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
int __maybe_unused r;
@ -923,6 +956,8 @@ int ft_board_setup(void *blob, struct bd_info *bd)
*/
setup_environment(blob);
bluetooth_dt_fixup(blob);
#ifdef CONFIG_VIDEO_DT_SIMPLEFB
r = sunxi_simplefb_setup(blob);
if (r)