bcm63xx: add linux v5.15 support

[openwrt/staging/ldir.git] / target / linux / bcm63xx / patches-5.15 / 367-MIPS-BCM63XX-add-support-for-loading-DTB.patch

diff --git a/target/linux/bcm63xx/patches-5.15/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch b/target/linux/bcm63xx/patches-5.15/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch
new file mode 100644 (file)
index 0000000..16015a0
--- /dev/null
+++ b/target/linux/bcm63xx/patches-5.15/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch
@@ -0,0 +1,119 @@
+From 26546e5499d98616322fb3472b977e2e86603f3a Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Tue, 24 Jun 2014 10:57:51 +0200
+Subject: [PATCH 45/48] MIPS: BCM63XX: add support for loading DTB
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ arch/mips/bcm63xx/boards/Kconfig        |    4 ++++
+ arch/mips/bcm63xx/boards/board_common.c |   34 +++++++++++++++++++++++++++++++
+ arch/mips/bcm63xx/prom.c                |    6 ++++++
+ 3 files changed, 44 insertions(+)
+
+--- a/arch/mips/bcm63xx/boards/Kconfig
++++ b/arch/mips/bcm63xx/boards/Kconfig
+@@ -2,6 +2,10 @@
+ menu "Board support"
+       depends on BCM63XX
+ 
++config BOARD_BCM63XX_DT
++      bool "Device Tree boards (experimential)"
++      select USE_OF
++
+ config BOARD_BCM963XX
+       bool "Generic Broadcom 963xx boards"
+       select SSB
+--- a/arch/mips/bcm63xx/boards/board_common.c
++++ b/arch/mips/bcm63xx/boards/board_common.c
+@@ -10,11 +10,14 @@
+ #include <linux/init.h>
+ #include <linux/kernel.h>
+ #include <linux/string.h>
++#include <linux/of_fdt.h>
++#include <linux/of_platform.h>
+ #include <linux/platform_device.h>
+ #include <linux/ssb/ssb.h>
+ #include <asm/addrspace.h>
+ #include <asm/bootinfo.h>
+ #include <asm/fw/cfe/cfe_api.h>
++#include <asm/prom.h>
+ #include <bcm63xx_board.h>
+ #include <bcm63xx_cpu.h>
+ #include <bcm63xx_dev_uart.h>
+@@ -125,8 +128,23 @@ void __init board_setup(void)
+       /* make sure we're running on expected cpu */
+       if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
+               panic("unexpected CPU for bcm963xx board");
++
++#if CONFIG_OF
++      if (initial_boot_params)
++              __dt_setup_arch(initial_boot_params);
++#endif
+ }
+ 
++#if CONFIG_OF
++void __init device_tree_init(void)
++{
++      if (!initial_boot_params)
++              return;
++
++      unflatten_and_copy_device_tree();
++}
++#endif
++
+ static struct gpio_led_platform_data bcm63xx_led_data;
+ 
+ static struct platform_device bcm63xx_gpio_leds = {
+@@ -135,6 +153,13 @@ static struct platform_device bcm63xx_gp
+       .dev.platform_data      = &bcm63xx_led_data,
+ };
+ 
++#if CONFIG_OF
++static struct of_device_id of_ids[] = {
++      { /* filled at runtime */ },
++      { .compatible = "simple-bus" },
++      { },
++};
++#endif
+ /*
+  * third stage init callback, register all board devices.
+  */
+@@ -142,6 +167,15 @@ int __init board_register_devices(void)
+ {
+       int usbh_ports = 0;
+ 
++#if CONFIG_OF
++      if (of_have_populated_dt()) {
++              snprintf(of_ids[0].compatible, sizeof(of_ids[0].compatible),
++                       "brcm,bcm%x", bcm63xx_get_cpu_id());
++
++              of_platform_populate(NULL, of_ids, NULL, NULL);
++      }
++#endif
++
+       if (board.has_uart0)
+               bcm63xx_uart_register(0);
+ 
+--- a/arch/mips/bcm63xx/prom.c
++++ b/arch/mips/bcm63xx/prom.c
+@@ -8,6 +8,7 @@
+ 
+ #include <linux/init.h>
+ #include <linux/memblock.h>
++#include <linux/of_fdt.h>
+ #include <linux/smp.h>
+ #include <asm/bootinfo.h>
+ #include <asm/bmips.h>
+@@ -22,6 +23,12 @@
+ void __init prom_init(void)
+ {
+       u32 reg, mask;
++      void *fdt = get_fdt();
++
++#if CONFIG_OF
++      if (fdt)
++              early_init_dt_verify(fdt);
++#endif
+ 
+       bcm63xx_cpu_init();
+