From 2db36c64bd5a8910112708c1c6b68bd3594517d3 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 1 Oct 2020 20:40:03 +0200 Subject: [PATCH] ram: rockchip: px30: add a config-based ddr selection The SRAM on the PX30 is not big enough to hold multiple DDR configs so it needs to be selected during build. So far simply the DDR3 config was always selected and getting DDR4 or LPDDR2/3 initialized would require a code modification. So add Kconfig options similar to RK3399 to allow selecting the DDR4 and LPDDR2/3 options instead, while DDR3 stays the default as before. Signed-off-by: Heiko Stuebner Reviewed-by: Jagan Teki Reviewed-by: Kever Yang --- drivers/ram/rockchip/Kconfig | 21 +++++++++++++++++++++ drivers/ram/rockchip/sdram_px30.c | 8 ++++++++ 2 files changed, 29 insertions(+) diff --git a/drivers/ram/rockchip/Kconfig b/drivers/ram/rockchip/Kconfig index 8e97c2f..c459bbf 100644 --- a/drivers/ram/rockchip/Kconfig +++ b/drivers/ram/rockchip/Kconfig @@ -22,6 +22,27 @@ config RAM_ROCKCHIP_DEBUG This is an option for developers to understand the ram drivers initialization, configurations and etc. +config RAM_PX30_DDR4 + bool "DDR3 support for Rockchip PX30" + depends on RAM_ROCKCHIP && ROCKCHIP_PX30 + help + This enables DDR4 sdram support instead of the default DDR3 support + on Rockchip PC30 SoCs. + +config RAM_PX30_LPDDR2 + bool "LPDDR2 support for Rockchip PX30" + depends on RAM_ROCKCHIP && ROCKCHIP_PX30 + help + This enables LPDDR2 sdram support instead of the default DDR3 support + on Rockchip PC30 SoCs. + +config RAM_PX30_LPDDR3 + bool "LPDDR3 support for Rockchip PX30" + depends on RAM_ROCKCHIP && ROCKCHIP_PX30 + help + This enables LPDDR3 sdram support instead of the default DDR3 support + on Rockchip PC30 SoCs. + config RAM_RK3399_LPDDR4 bool "LPDDR4 support for Rockchip RK3399" depends on RAM_ROCKCHIP && ROCKCHIP_RK3399 diff --git a/drivers/ram/rockchip/sdram_px30.c b/drivers/ram/rockchip/sdram_px30.c index fd5763d..2f1f6e9 100644 --- a/drivers/ram/rockchip/sdram_px30.c +++ b/drivers/ram/rockchip/sdram_px30.c @@ -125,7 +125,15 @@ u32 addrmap[][8] = { struct dram_info dram_info; struct px30_sdram_params sdram_configs[] = { +#if defined(CONFIG_RAM_PX30_DDR4) +#include "sdram-px30-ddr4-detect-333.inc" +#elif defined(CONFIG_RAM_PX30_LPDDR2) +#include "sdram-px30-lpddr2-detect-333.inc" +#elif defined(CONFIG_RAM_PX30_LPDDR3) +#include "sdram-px30-lpddr3-detect-333.inc" +#else #include "sdram-px30-ddr3-detect-333.inc" +#endif }; struct ddr_phy_skew skew = { -- 2.7.4