diff options
author | Andy Yan <andy.yan@rock-chips.com> | 2019-11-14 06:22:18 +0300 |
---|---|---|
committer | Kever Yang <kever.yang@rock-chips.com> | 2019-11-17 12:22:53 +0300 |
commit | 54069939be63e70027b183654e1f651771e0ca20 (patch) | |
tree | 09b5059a17e205c53537a33b8a9597d32684a63a /drivers/ram | |
parent | 9e3de722e4967100306cb5e074e3984a03539ee9 (diff) | |
download | u-boot-54069939be63e70027b183654e1f651771e0ca20.tar.xz |
rockchip: rk3308: Add sdram driver
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 Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/ram')
-rw-r--r-- | drivers/ram/rockchip/Makefile | 1 | ||||
-rw-r--r-- | drivers/ram/rockchip/sdram_rk3308.c | 55 |
2 files changed, 56 insertions, 0 deletions
diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile index 217366b5d5..c3ec89ada4 100644 --- a/drivers/ram/rockchip/Makefile +++ b/drivers/ram/rockchip/Makefile @@ -9,6 +9,7 @@ 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 sdram_pctl_px30.o sdram_phy_px30.o obj-$(CONFIG_ROCKCHIP_RK3399) += sdram_rk3399.o obj-$(CONFIG_ROCKCHIP_SDRAM_COMMON) += sdram_common.o diff --git a/drivers/ram/rockchip/sdram_rk3308.c b/drivers/ram/rockchip/sdram_rk3308.c new file mode 100644 index 0000000000..310df79123 --- /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.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), +}; |