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powerpc/mpc8xxx: Allow board file to override DDR address assignment

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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>
This commit is contained in:
York Sun 2013-03-25 07:39:35 +00:00 committed by Andy Fleming
parent 8444b536c9
commit ef00227551
1 changed files with 6 additions and 1 deletions
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7
arch/powerpc/cpu/mpc8xxx/ddr/main.c
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@ -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)