From a735550bb8471a170247fad5376d0086b15ddedd Mon Sep 17 00:00:00 2001 From: Jagan Teki Date: Tue, 16 Jul 2019 17:27:06 +0530 Subject: [PATCH] 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 Reviewed-by: Kever Yang --- arch/arm/include/asm/arch-rockchip/sdram_rk3399.h | 17 ++++++++++++++++- drivers/ram/rockchip/sdram_rk3399.c | 2 +- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h index 7f41a67..dc65ae7 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h @@ -28,6 +28,21 @@ union noc_ddrtimingc0 { } b; }; +union noc_ddrmode { + u32 d32; + struct { + unsigned autoprecharge : 1; + unsigned bypassfiltering : 1; + unsigned fawbank : 1; + unsigned burstsize : 2; + unsigned mwrsize : 2; + unsigned reserved2 : 1; + unsigned forceorder : 8; + unsigned forceorderstate : 8; + unsigned reserved3 : 8; + } b; +}; + struct rk3399_msch_regs { u32 coreid; u32 revisionid; @@ -48,7 +63,7 @@ struct rk3399_msch_timings { u32 ddrtimingb0; union noc_ddrtimingc0 ddrtimingc0; u32 devtodev0; - u32 ddrmode; + union noc_ddrmode ddrmode; u32 agingx0; }; diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index d47e290..5568ad9 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1114,7 +1114,7 @@ static void dram_all_config(struct dram_info *dram, &ddr_msch_regs->ddrtimingc0); writel(noc_timing->devtodev0, &ddr_msch_regs->devtodev0); - writel(noc_timing->ddrmode, + writel(noc_timing->ddrmode.d32, &ddr_msch_regs->ddrmode); /* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */ -- 2.7.4