fix system config overwrite @ MPC834x and MPC8313
PATCH 1/1 fix system config overwrite @ MPC834x and MPC8313
During 83xx setup the "System I/O configuration register high" gets overwritten with user defined value if CFG_SICRH is defined.
Regarding to the MPC834x manual (Table 5-28 reve.1) bits 28+29 of SICRH must keep their reset value regardless of configuration.
On my board (using RGMII) those bits are set after reset - yet it's unclear where they come from.
The patch keeps both bits on MPC834x and MPC8313.
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PATCH 1/1 fix system config overwrite @ MPC834x and MPC8313
Quoted 6 lines · On Mon, 23 Jun 2008 11:40:56 +0200 Andre Schwarz…
During 83xx setup the "System I/O configuration register high" gets overwritten with user defined value if
CFG_SICRHis defined.Regarding to the MPC834x manual (Table 5-28 reve.1) bits 28+29 of SICRH must keep their reset value regardless of configuration.
Quoted 6 lines
On my board (using RGMII) those bits are set after reset - yet it's unclear where they come from.
The patch keeps both bits on MPC834x and MPC8313.
Signed-off-by Andre Schwarz <[email protected]>
this has been applied after a slight rewrite to not cause the following:
cpu_init.c: In function ?cpu_init_f?:
cpu_init.c:62: warning: unused variable ?tmp_sicrh?
Thanks Andre,
Kim