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ram: rk3399: Add DdrMode
Add DdrMode structure with associated bit fields. These would help to reconfigure sdram capabilities during lpddr4 setup related configs. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
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@ -28,6 +28,21 @@ union noc_ddrtimingc0 {
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} b;
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};
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union noc_ddrmode {
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u32 d32;
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struct {
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unsigned autoprecharge : 1;
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unsigned bypassfiltering : 1;
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unsigned fawbank : 1;
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unsigned burstsize : 2;
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unsigned mwrsize : 2;
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unsigned reserved2 : 1;
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unsigned forceorder : 8;
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unsigned forceorderstate : 8;
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unsigned reserved3 : 8;
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} b;
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};
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struct rk3399_msch_regs {
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u32 coreid;
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u32 revisionid;
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@ -48,7 +63,7 @@ struct rk3399_msch_timings {
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u32 ddrtimingb0;
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union noc_ddrtimingc0 ddrtimingc0;
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u32 devtodev0;
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u32 ddrmode;
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union noc_ddrmode ddrmode;
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u32 agingx0;
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};
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@ -1114,7 +1114,7 @@ static void dram_all_config(struct dram_info *dram,
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&ddr_msch_regs->ddrtimingc0);
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writel(noc_timing->devtodev0,
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&ddr_msch_regs->devtodev0);
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writel(noc_timing->ddrmode,
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writel(noc_timing->ddrmode.d32,
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&ddr_msch_regs->ddrmode);
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/* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */
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