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authorKumar Gala <galak@kernel.crashing.org>2011-02-02 11:23:50 -0600
committerKumar Gala <galak@kernel.crashing.org>2011-04-04 09:24:41 -0500
commitf9a33f1c6158ce3fa119d94109d4347cf2e0aa4a (patch)
treea1f46817cc4b8a914e7013244e7d323f22a64801
parentfdb4dad31e2b0c7991595c9cedaf76c033a31115 (diff)
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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>
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu_init.c15
-rw-r--r--arch/powerpc/lib/board.c14
2 files changed, 23 insertions, 6 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index 8ece970..215b7b3 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -384,12 +384,6 @@ int cpu_init_r(void)
enable_cpc();
-#ifdef CONFIG_QE
- uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
- qe_init(qe_base);
- qe_reset();
-#endif
-
/* needs to be in ram since code uses global static vars */
fsl_serdes_init();
@@ -449,3 +443,12 @@ int sata_initialize(void)
return 1;
}
#endif
+
+void cpu_secondary_init_r(void)
+{
+#ifdef CONFIG_QE
+ uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */
+ qe_init(qe_base);
+ qe_reset();
+#endif
+}
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)
}
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 @@ void board_init_r (gd_t *id, ulong dest_addr)
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,