[U-Boot] [PATCH v3 01/15] powerpc, 8xx: initialisation global data
Christophe Leroy
christophe.leroy at c-s.fr
Tue Mar 6 12:06:24 UTC 2018
Global data pointer has to be initialised
Global data area has to be zeroised
Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
---
arch/powerpc/cpu/mpc8xx/cpu_init.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/cpu/mpc8xx/cpu_init.c b/arch/powerpc/cpu/mpc8xx/cpu_init.c
index dc601a12976..3c9c4b19753 100644
--- a/arch/powerpc/cpu/mpc8xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu_init.c
@@ -12,6 +12,8 @@
#include <commproc.h>
#include <asm/io.h>
+DECLARE_GLOBAL_DATA_PTR;
+
/*
* Breath some life into the CPU...
*
@@ -24,6 +26,10 @@ void cpu_init_f(immap_t __iomem *immr)
memctl8xx_t __iomem *memctl = &immr->im_memctl;
ulong reg;
+ gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+ /* Clear initial global data */
+ memset((void *)gd, 0, sizeof(*gd));
+
/* SYPCR - contains watchdog control (11-9) */
out_be32(&immr->im_siu_conf.sc_sypcr, CONFIG_SYS_SYPCR);
--
2.13.3
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