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authorYork Sun <yorksun@freescale.com>2013-03-25 07:39:35 +0000
committerAndy Fleming <afleming@freescale.com>2013-05-14 16:13:25 -0500
commitef00227551273eb1acca299bcb9528e1a2071328 (patch)
treebb4188f99939b5478ba0f877dc376999f714c962 /arch/powerpc
parent8444b536c99592d61a8374641006431f749253df (diff)
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powerpc/mpc8xxx: Allow board file to override DDR address assignment
This gives boards flexibility to assign other than default addresses to each DDR controller. For example, DDR controler 2 can have 0 as the base and DDR controller 1 has higher memory. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/main.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
index 1a8d593..7a8636d 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
@@ -186,7 +186,7 @@ const char * step_to_string(unsigned int step) {
return step_string_tbl[s];
}
-unsigned long long step_assign_addresses(fsl_ddr_info_t *pinfo,
+static unsigned long long __step_assign_addresses(fsl_ddr_info_t *pinfo,
unsigned int dbw_cap_adj[])
{
int i, j;
@@ -354,6 +354,11 @@ unsigned long long step_assign_addresses(fsl_ddr_info_t *pinfo,
return total_mem;
}
+/* Use weak function to allow board file to override the address assignment */
+__attribute__((weak, alias("__step_assign_addresses")))
+unsigned long long step_assign_addresses(fsl_ddr_info_t *pinfo,
+ unsigned int dbw_cap_adj[]);
+
unsigned long long
fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
unsigned int size_only)