diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.1/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.1/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-4.1/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch b/target/linux/brcm63xx/patches-4.1/367-MIPS-BCM63XX-add-support-for-loading-DTB.patch new file mode 100644 index 0000000..5ab76e4 --- /dev/null +++ b/target/linux/brcm63xx/patches-4.1/367-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 +@@ -1,6 +1,10 @@ + 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 +@@ -10,12 +10,15 @@ + #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 <linux/spi/spi.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> +@@ -126,8 +129,23 @@ 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 = { +@@ -136,6 +154,13 @@ 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. + */ +@@ -143,6 +168,15 @@ 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/bootmem.h> ++#include <linux/of_fdt.h> + #include <linux/smp.h> + #include <asm/bootinfo.h> + #include <asm/bmips.h> +@@ -23,6 +24,11 @@ void __init prom_init(void) + { + u32 reg, mask; + ++#if CONFIG_OF ++ if (fw_arg0 == -2) ++ early_init_dt_verify((void *)fw_arg1); ++#endif ++ + bcm63xx_cpu_init(); + + /* stop any running watchdog */ |