On Tue, Jan 24, 2017 at 07:32:04PM +0100, Mirza Krak wrote:
> From: Mirza Krak <mirza.k...@gmail.com>
>
> U-boot has been updated to 2017.01 in poky/oe-core which contains these
> patches.
>
> Signed-off-by: Mirza Krak <mirza.k...@gmail.com>
> ---
> ...0001-arm-add-save_boot_params-for-ARM1176.patch | 56 --------
> ...through-of-the-firmware-provided-FDT-blob.patch | 156
> ---------------------
> recipes-bsp/u-boot/u-boot_%.bbappend | 5 -
> 3 files changed, 217 deletions(-)
> delete mode 100644
> recipes-bsp/u-boot/files/0001-arm-add-save_boot_params-for-ARM1176.patch
> delete mode 100644
> recipes-bsp/u-boot/files/0002-rpi-passthrough-of-the-firmware-provided-FDT-blob.patch
>
> diff --git
> a/recipes-bsp/u-boot/files/0001-arm-add-save_boot_params-for-ARM1176.patch
> b/recipes-bsp/u-boot/files/0001-arm-add-save_boot_params-for-ARM1176.patch
> deleted file mode 100644
> index a5ebff5..0000000
> --- a/recipes-bsp/u-boot/files/0001-arm-add-save_boot_params-for-ARM1176.patch
> +++ /dev/null
> @@ -1,56 +0,0 @@
> -From 3e10fcde3f3c24a488866dd33fa3f5d46ff3d7a3 Mon Sep 17 00:00:00 2001
> -From: =?UTF-8?q?C=C3=A9dric=20Schieli?= <cschi...@gmail.com>
> -Date: Fri, 11 Nov 2016 11:59:06 +0100
> -Subject: [PATCH] arm: add save_boot_params for ARM1176
> -MIME-Version: 1.0
> -Content-Type: text/plain; charset=UTF-8
> -Content-Transfer-Encoding: 8bit
> -
> -Implement a hook to allow boards to save boot-time CPU state for later
> -use. When U-Boot is chain-loaded by another bootloader, CPU registers may
> -contain useful information such as system configuration information. This
> -feature mirrors the equivalent ARMv7 feature.
> -
> -Signed-off-by: Cédric Schieli <cschi...@gmail.com>
> -Acked-by: Stephen Warren <swar...@nvidia.com>
> -Signed-off-by: Paul Barker <p...@paulbarker.me.uk>
> -Upstream-status: Backport
> ----
> - arch/arm/cpu/arm1176/start.S | 10 ++++++++++
> - 1 file changed, 10 insertions(+)
> -
> -diff --git a/arch/arm/cpu/arm1176/start.S b/arch/arm/cpu/arm1176/start.S
> -index a602d4e..7c00201 100644
> ---- a/arch/arm/cpu/arm1176/start.S
> -+++ b/arch/arm/cpu/arm1176/start.S
> -@@ -16,6 +16,7 @@
> -
> - #include <asm-offsets.h>
> - #include <config.h>
> -+#include <linux/linkage.h>
> -
> - #ifndef CONFIG_SYS_PHY_UBOOT_BASE
> - #define CONFIG_SYS_PHY_UBOOT_BASE CONFIG_SYS_UBOOT_BASE
> -@@ -37,6 +38,11 @@
> - .globl reset
> -
> - reset:
> -+ /* Allow the board to save important registers */
> -+ b save_boot_params
> -+.globl save_boot_params_ret
> -+save_boot_params_ret:
> -+
> - /*
> - * set the cpu to SVC32 mode
> - */
> -@@ -110,3 +116,7 @@ mmu_disable_phys:
> - c_runtime_cpu_setup:
> -
> - mov pc, lr
> -+
> -+WEAK(save_boot_params)
> -+ b save_boot_params_ret /* back to my caller */
> -+ENDPROC(save_boot_params)
> ---
> -2.1.4
> -
> diff --git
> a/recipes-bsp/u-boot/files/0002-rpi-passthrough-of-the-firmware-provided-FDT-blob.patch
>
> b/recipes-bsp/u-boot/files/0002-rpi-passthrough-of-the-firmware-provided-FDT-blob.patch
> deleted file mode 100644
> index 323b7ab..0000000
> ---
> a/recipes-bsp/u-boot/files/0002-rpi-passthrough-of-the-firmware-provided-FDT-blob.patch
> +++ /dev/null
> @@ -1,156 +0,0 @@
> -From ade243a211d62327e9ebadce27bbbff7981e37f0 Mon Sep 17 00:00:00 2001
> -From: =?UTF-8?q?C=C3=A9dric=20Schieli?= <cschi...@gmail.com>
> -Date: Fri, 11 Nov 2016 11:59:07 +0100
> -Subject: [PATCH] rpi: passthrough of the firmware provided FDT blob
> -MIME-Version: 1.0
> -Content-Type: text/plain; charset=UTF-8
> -Content-Transfer-Encoding: 8bit
> -
> -Raspberry firmware used to pass a FDT blob at a fixed address (0x100),
> -but this is not true anymore. The address now depends on both the
> -memory size and the blob size [1].
> -
> -If one wants to passthrough this FDT blob to the kernel, the most
> -reliable way is to save its address from the r2/x0 register in the
> -U-Boot entry point and expose it in a environment variable for
> -further processing.
> -
> -This patch just does this:
> -- save the provided address in the global variable fw_dtb_pointer
> -- expose it in ${fdt_addr} if it points to a a valid FDT blob
> -
> -There are many different ways to use it. One can, for example, use
> -the following script which will extract from the tree the command
> -line built by the firmware, then hand over the blob to a previously
> -loaded kernel:
> -
> -fdt addr ${fdt_addr}
> -fdt get value bootargs /chosen bootargs
> -bootz ${kernel_addr_r} - ${fdt_addr}
> -
> -Alternatively, users relying on sysboot/pxe can simply omit any FDT
> -statement in their extlinux.conf file, U-Boot will automagically pick
> -${fdt_addr} and pass it to the kernel.
> -
> -[1] https://www.raspberrypi.org/forums//viewtopic.php?f=107&t=134018
> -
> -Upstream-Status: Backport
> -
> -Signed-off-by: Cédric Schieli <cschi...@gmail.com>
> -Acked-by: Stephen Warren <swar...@nvidia.com>
> -Signed-off-by: Jonathan Liu <net...@gmail.com>
> ----
> - board/raspberrypi/rpi/Makefile | 1 +
> - board/raspberrypi/rpi/lowlevel_init.S | 36
> +++++++++++++++++++++++++++++++++++
> - board/raspberrypi/rpi/rpi.c | 29 ++++++++++++++++++++++++++++
> - 3 files changed, 66 insertions(+)
> - create mode 100644 board/raspberrypi/rpi/lowlevel_init.S
> -
> -diff --git a/board/raspberrypi/rpi/Makefile b/board/raspberrypi/rpi/Makefile
> -index 4ce2c98..dcb25ac 100644
> ---- a/board/raspberrypi/rpi/Makefile
> -+++ b/board/raspberrypi/rpi/Makefile
> -@@ -5,3 +5,4 @@
> - #
> -
> - obj-y := rpi.o
> -+obj-y += lowlevel_init.o
> -diff --git a/board/raspberrypi/rpi/lowlevel_init.S
> b/board/raspberrypi/rpi/lowlevel_init.S
> -new file mode 100644
> -index 0000000..cdbd8e1
> ---- /dev/null
> -+++ b/board/raspberrypi/rpi/lowlevel_init.S
> -@@ -0,0 +1,36 @@
> -+/*
> -+ * (C) Copyright 2016
> -+ * Cédric Schieli <cschi...@gmail.com>
> -+ *
> -+ * SPDX-License-Identifier: GPL-2.0+
> -+ */
> -+
> -+#include <config.h>
> -+
> -+.align 8
> -+.global fw_dtb_pointer
> -+fw_dtb_pointer:
> -+#ifdef CONFIG_ARM64
> -+ .dword 0x0
> -+#else
> -+ .word 0x0
> -+#endif
> -+
> -+/*
> -+ * Routine: save_boot_params (called after reset from start.S)
> -+ * Description: save ATAG/FDT address provided by the firmware at boot time
> -+ */
> -+
> -+.global save_boot_params
> -+save_boot_params:
> -+
> -+ /* The firmware provided ATAG/FDT address can be found in r2/x0 */
> -+#ifdef CONFIG_ARM64
> -+ adr x8, fw_dtb_pointer
> -+ str x0, [x8]
> -+#else
> -+ str r2, fw_dtb_pointer
> -+#endif
> -+
> -+ /* Returns */
> -+ b save_boot_params_ret
> -diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
> -index 6245b36..ffd6d31 100644
> ---- a/board/raspberrypi/rpi/rpi.c
> -+++ b/board/raspberrypi/rpi/rpi.c
> -@@ -25,6 +25,9 @@
> -
> - DECLARE_GLOBAL_DATA_PTR;
> -
> -+/* From lowlevel_init.S */
> -+extern unsigned long fw_dtb_pointer;
> -+
> - static const struct bcm2835_gpio_platdata gpio_platdata = {
> - .base = BCM2835_GPIO_BASE,
> - };
> -@@ -285,6 +288,31 @@ static void set_fdtfile(void)
> - setenv("fdtfile", fdtfile);
> - }
> -
> -+/*
> -+ * If the firmware provided a valid FDT at boot time, let's expose it in
> -+ * ${fdt_addr} so it may be passed unmodified to the kernel.
> -+ */
> -+static void set_fdt_addr(void)
> -+{
> -+ if (getenv("fdt_addr"))
> -+ return;
> -+
> -+ if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC)
> -+ return;
> -+
> -+ setenv_hex("fdt_addr", fw_dtb_pointer);
> -+}
> -+
> -+/*
> -+ * Prevent relocation from stomping on a firmware provided FDT blob.
> -+ */
> -+unsigned long board_get_usable_ram_top(unsigned long total_size)
> -+{
> -+ if ((gd->ram_top - fw_dtb_pointer) > SZ_64M)
> -+ return gd->ram_top;
> -+ return fw_dtb_pointer & ~0xffff;
> -+}
> -+
> - static void set_usbethaddr(void)
> - {
> - ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1);
> -@@ -356,6 +384,7 @@ static void set_serial_number(void)
> -
> - int misc_init_r(void)
> - {
> -+ set_fdt_addr();
> - set_fdtfile();
> - set_usbethaddr();
> - #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
> ---
> -2.10.2
> -
> diff --git a/recipes-bsp/u-boot/u-boot_%.bbappend
> b/recipes-bsp/u-boot/u-boot_%.bbappend
> index 0edc8dc..3781666 100644
> --- a/recipes-bsp/u-boot/u-boot_%.bbappend
> +++ b/recipes-bsp/u-boot/u-boot_%.bbappend
> @@ -1,6 +1 @@
> -FILESEXTRAPATHS_prepend_rpi := "${THISDIR}/files:"
> RDEPENDS_${PN}_append_rpi = " rpi-u-boot-scr"
> -SRC_URI_append_rpi = " \
> - file://0001-arm-add-save_boot_params-for-ARM1176.patch \
> - file://0002-rpi-passthrough-of-the-firmware-provided-FDT-blob.patch \
> - "
> --
> 2.1.4
>
> --
> _______________________________________________
> yocto mailing list
> yocto@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/yoctoMerged to master. Thank you. -- Andrei Gherzan
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