drivers: ram: rockchip: Send refresh when detecting bank and bg

Change-Id: Idcea7eb5425dbf875376ad98851ea8b94b4be3d9
Signed-off-by: Zhihuan He <huan.he@rock-chips.com>

driver: ram: rockchip: update the driver of sdram_pctl_px30

Change-Id: I586065b41a22bbee266fa234e6513ef1dac5b37b
Signed-off-by: YouMin Chen <cym@rock-chips.com>

Merge branch 'next-dev' into thunder-boot

driver: ram: rockchip: rename sdram_common.* to sdram.*

Change-Id: Idc6edee2906297d3ab681a36dc58c79283c0eb57
Signed-off-by: YouMin Chen <cym@rock-chips.com>

driver: ram: rockchip: add common code about dram init

Add commond code about rockchip dram init,include print dram info,
capacity detect,config msch timing,config os_regs and so on.

Change-Id: Ie4

driver: ram: rockchip: add common code about dram init

Add commond code about rockchip dram init,include print dram info,
capacity detect,config msch timing,config os_regs and so on.

Change-Id: Ie4223dac31bde290d19627c96088542fcdd5521d
Signed-off-by: YouMin Chen <cym@rock-chips.com>

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