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2007-05-07[POWERPC] mpc52xx suspend to deep-sleepDomen Puncer1-0/+154
Implement deep-sleep on MPC52xx. SDRAM is put into self-refresh with help of SRAM code (alternatives would be code in FLASH, I-cache). Interrupt code must also not be in SDRAM, so put it in I-cache. MPC52xx core is static, so contents will remain intact even with clocks turned off. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>