forked from mirrors/nixpkgs
U-Boot: Patch Versatile Express to use config_distro_bootcmd.h
With this patch in place, ARMv7 NixOS can be booted in QEMU: qemu-system-arm -kernel u-boot -M vexpress-a9 -serial stdio -sd nixos-sd-image-armv7l-linux.img -m 1024 ...with all the features that boot.loader.generic-extlinux-compatible supports, like the boot generation menu and seamless kernel upgrades in the VM.
This commit is contained in:
Tuomas Tynkkynen
parent
d013de6d32
commit
0ec0790348
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@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
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sha256 = "0q2x1wh1f6rjh9rmcnkf28dxcvp9hkhi4vzspqkzamb6b3gp06ha";
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};
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patches = [ ./vexpress-Use-config_distro_bootcmd.patch ];
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nativeBuildInputs = [ bc dtc ];
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configurePhase = ''
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141
pkgs/misc/uboot/vexpress-Use-config_distro_bootcmd.patch
Normal file
141
pkgs/misc/uboot/vexpress-Use-config_distro_bootcmd.patch
Normal file
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@ -0,0 +1,141 @@
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From 53a8612ff19f360363edaaf70137968f7fd6a1cd Mon Sep 17 00:00:00 2001
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From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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Date: Mon, 8 Jun 2015 22:29:23 +0300
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Subject: [PATCH] vexpress: Use config_distro_bootcmd
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Also had to hack cli_readline.c, as one codepath in
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cli_readline_into_buffer doesn't respect the timeout.
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---
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common/cli_readline.c | 12 +++++++++++-
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include/configs/vexpress_ca9x4.h | 1 -
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include/configs/vexpress_common.h | 35 +++++++++++++++++++++++------------
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3 files changed, 34 insertions(+), 14 deletions(-)
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diff --git a/common/cli_readline.c b/common/cli_readline.c
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index 9a9fb35..ca997a9 100644
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--- a/common/cli_readline.c
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+++ b/common/cli_readline.c
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@@ -517,6 +517,7 @@ int cli_readline_into_buffer(const char *const prompt, char *buffer,
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int plen = 0; /* prompt length */
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int col; /* output column cnt */
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char c;
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+ int first = 1;
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/* print prompt */
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if (prompt) {
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@@ -528,7 +529,16 @@ int cli_readline_into_buffer(const char *const prompt, char *buffer,
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for (;;) {
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if (bootretry_tstc_timeout())
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return -2; /* timed out */
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- WATCHDOG_RESET(); /* Trigger watchdog, if needed */
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+ if (first && timeout) {
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+ uint64_t etime = endtick(timeout);
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+
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+ while (!tstc()) { /* while no incoming data */
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+ if (get_ticks() >= etime)
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+ return -2; /* timed out */
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+ WATCHDOG_RESET();
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+ }
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+ first = 0;
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+ }
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#ifdef CONFIG_SHOW_ACTIVITY
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while (!tstc()) {
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diff --git a/include/configs/vexpress_ca9x4.h b/include/configs/vexpress_ca9x4.h
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index 38ac4ed..993398c 100644
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--- a/include/configs/vexpress_ca9x4.h
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+++ b/include/configs/vexpress_ca9x4.h
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@@ -13,6 +13,5 @@
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#define CONFIG_VEXPRESS_ORIGINAL_MEMORY_MAP
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#include "vexpress_common.h"
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-#define CONFIG_BOOTP_VCI_STRING "U-boot.armv7.vexpress_ca9x4"
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#endif /* VEXPRESS_CA9X4_H */
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diff --git a/include/configs/vexpress_common.h b/include/configs/vexpress_common.h
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index db78c85..1dd069b 100644
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--- a/include/configs/vexpress_common.h
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+++ b/include/configs/vexpress_common.h
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@@ -123,7 +123,6 @@
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#define CONFIG_SYS_L2CACHE_OFF 1
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#define CONFIG_INITRD_TAG 1
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#define CONFIG_SYS_GENERIC_BOARD
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-#define CONFIG_OF_LIBFDT 1
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/* Size of malloc() pool */
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#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128 * 1024)
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@@ -152,6 +151,8 @@
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#define CONFIG_SYS_SERIAL0 V2M_UART0
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#define CONFIG_SYS_SERIAL1 V2M_UART1
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+#include <config_distro_defaults.h>
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+#include <config_cmd_default.h>
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/* Command line configuration */
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#define CONFIG_CMD_BDI
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#define CONFIG_CMD_DHCP
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@@ -169,7 +170,6 @@
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#define CONFIG_SUPPORT_RAW_INITRD
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#define CONFIG_CMD_FAT
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-#define CONFIG_DOS_PARTITION 1
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#define CONFIG_MMC 1
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#define CONFIG_CMD_MMC
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#define CONFIG_GENERIC_MMC
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@@ -207,17 +207,28 @@
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GENERATED_GBL_DATA_SIZE)
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#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_GBL_DATA_OFFSET
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+#define BOOT_TARGET_DEVICES(func) \
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+ func(MMC, mmc, 0)
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+#include <config_distro_bootcmd.h>
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+
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/* Basic environment settings */
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-#define CONFIG_BOOTCOMMAND "run bootflash;"
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#ifdef CONFIG_VEXPRESS_ORIGINAL_MEMORY_MAP
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+/*
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+ * RAM starts at 0x6000_0000
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+ * - U-Boot loaded @ 8M
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+ * - Kernel loaded @ 32M
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+ * - Initrd loaded @ 128M
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+ * - DTB loaded @ 240M
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+ */
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#define CONFIG_PLATFORM_ENV_SETTINGS \
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- "loadaddr=0x80008000\0" \
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- "ramdisk_addr_r=0x61000000\0" \
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- "kernel_addr=0x44100000\0" \
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- "ramdisk_addr=0x44800000\0" \
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- "maxramdisk=0x1800000\0" \
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- "pxefile_addr_r=0x88000000\0" \
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- "kernel_addr_r=0x80008000\0"
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+ "fdtfile=vexpress-v2p-ca9.dtb\0" \
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+ "kernel_addr_r=0x62000000\0" \
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+ "ramdisk_addr_r=0x68000000\0" \
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+ "maxramdisk=0x06000000\0" \
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+ "fdt_addr_r=0x6f000000\0" \
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+ "loadaddr=0x70000000\0" \
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+ "pxefile_addr_r=0x71000000\0" \
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+ "scriptaddr=0x72000000\0"
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#elif defined(CONFIG_VEXPRESS_EXTENDED_MEMORY_MAP)
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#define CONFIG_PLATFORM_ENV_SETTINGS \
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"loadaddr=0xa0008000\0" \
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@@ -240,7 +251,8 @@
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"devtmpfs.mount=0 vmalloc=256M\0" \
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"bootflash=run flashargs; " \
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"cp ${ramdisk_addr} ${ramdisk_addr_r} ${maxramdisk}; " \
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- "bootm ${kernel_addr} ${ramdisk_addr_r}\0"
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+ "bootm ${kernel_addr} ${ramdisk_addr_r}\0" \
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+ BOOTENV
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/* FLASH and environment organization */
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#define PHYS_FLASH_SIZE 0x04000000 /* 64MB */
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@@ -294,7 +306,6 @@
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot args buffer */
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#define CONFIG_CMD_SOURCE
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#define CONFIG_SYS_LONGHELP
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-#define CONFIG_CMDLINE_EDITING 1
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#define CONFIG_SYS_MAXARGS 16 /* max command args */
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#endif /* VEXPRESS_COMMON_H */
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--
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2.4.4
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