A dm based dram driver for rk3308 u-boot to get capacity.
Signed-off-by: Andy Yan andy.yan@rock-chips.com Reviewed-by: Kever Yangkever.yang@rock-chips.com ---
Changes in v3: None
drivers/ram/rockchip/Makefile | 1 + drivers/ram/rockchip/sdram_rk3308.c | 55 +++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 drivers/ram/rockchip/sdram_rk3308.c
diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile index feb1f82d00..1adca32dcb 100644 --- a/drivers/ram/rockchip/Makefile +++ b/drivers/ram/rockchip/Makefile @@ -9,5 +9,6 @@ obj-$(CONFIG_ROCKCHIP_RK3128) = sdram_rk3128.o obj-$(CONFIG_ROCKCHIP_RK3188) = sdram_rk3188.o obj-$(CONFIG_ROCKCHIP_RK322X) = sdram_rk322x.o obj-$(CONFIG_ROCKCHIP_RK3288) = sdram_rk3288.o +obj-$(CONFIG_ROCKCHIP_RK3308) = sdram_rk3308.o obj-$(CONFIG_ROCKCHIP_RK3328) = sdram_rk3328.o obj-$(CONFIG_RAM_RK3399) += sdram_rk3399.o diff --git a/drivers/ram/rockchip/sdram_rk3308.c b/drivers/ram/rockchip/sdram_rk3308.c new file mode 100644 index 0000000000..43d44cce62 --- /dev/null +++ b/drivers/ram/rockchip/sdram_rk3308.c @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * (C) Copyright 2019 Rockchip Electronics Co., Ltd. + */ + +#include <common.h> +#include <dm.h> +#include <ram.h> +#include <syscon.h> +#include <asm/arch/grf_rk3308.h> +#include <asm/arch-rockchip/clock.h> +#include <asm/arch-rockchip/sdram_common.h> + +struct dram_info { + struct ram_info info; + struct rk3308_grf *grf; +}; + +static int rk3308_dmc_probe(struct udevice *dev) +{ + struct dram_info *priv = dev_get_priv(dev); + + priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + priv->info.base = CONFIG_SYS_SDRAM_BASE; + priv->info.size = rockchip_sdram_size((phys_addr_t)&priv->grf->os_reg2); + + return 0; +} + +static int rk3308_dmc_get_info(struct udevice *dev, struct ram_info *info) +{ + struct dram_info *priv = dev_get_priv(dev); + + *info = priv->info; + + return 0; +} + +static struct ram_ops rk3308_dmc_ops = { + .get_info = rk3308_dmc_get_info, +}; + +static const struct udevice_id rk3308_dmc_ids[] = { + { .compatible = "rockchip,rk3308-dmc" }, + { } +}; + +U_BOOT_DRIVER(dmc_rk3308) = { + .name = "rockchip_rk3308_dmc", + .id = UCLASS_RAM, + .of_match = rk3308_dmc_ids, + .ops = &rk3308_dmc_ops, + .probe = rk3308_dmc_probe, + .priv_auto_alloc_size = sizeof(struct dram_info), +};