powerpc: Add cpu_secondary_init_r to allow for initialization post env setup
We can simplify some cpu/SoC level initialization by moving it to be
after the environment and non-volatile storage is setup as there might
be dependancies on such things in various boot configurations.
For example for FSL SoC's with QE if we boot from NAND we need it setup
to extra the ucode image to initialize the QE. If we always do this
after environment & non-volatile storage is working we can have the code
be the same regardless of NOR, NAND, SPI, MMC boot.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 4719f8c..83fb074 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -186,6 +186,12 @@
}
int board_flash_wp_on(void) __attribute__((weak, alias("__board_flash_wp_on")));
+void __cpu_secondary_init_r(void)
+{
+}
+void cpu_secondary_init_r(void)
+__attribute__((weak, alias("__cpu_secondary_init_r")));
+
static int init_func_ram (void)
{
#ifdef CONFIG_BOARD_TYPES
@@ -798,6 +804,14 @@
env_relocate ();
/*
+ * after non-volatile devices & environment is setup and cpu code have
+ * another round to deal with any initialization that might require
+ * full access to the environment or loading of some image (firmware)
+ * from a non-volatile device
+ */
+ cpu_secondary_init_r();
+
+ /*
* Fill in missing fields of bd_info.
* We do this here, where we have "normal" access to the
* environment; we used to do this still running from ROM,