[PATCH v1 07/18] ram: rockchip: Add rk3588 ddr driver support

[Kever Yang]

On 2023/1/30 22:57, Jagan Teki wrote:
> Add ddr driver for rk3588 to get the ram capacity.
>
> Co-developed-by: Jonas Karlman <jonas at kwiboo.se>
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
> Signed-off-by: Jagan Teki <jagan at edgeble.ai>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>   drivers/ram/rockchip/Makefile       |  1 +
>   drivers/ram/rockchip/sdram_rk3588.c | 57 +++++++++++++++++++++++++++++
>   2 files changed, 58 insertions(+)
>   create mode 100644 drivers/ram/rockchip/sdram_rk3588.c
>
> diff --git a/drivers/ram/rockchip/Makefile b/drivers/ram/rockchip/Makefile
> index 98839ad6a6..36dc0500da 100644
> --- a/drivers/ram/rockchip/Makefile
> +++ b/drivers/ram/rockchip/Makefile
> @@ -14,5 +14,6 @@ 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_RK3568) += sdram_rk3568.o
> +obj-$(CONFIG_ROCKCHIP_RK3588) += sdram_rk3588.o
>   obj-$(CONFIG_ROCKCHIP_RV1126) += sdram_rv1126.o sdram_pctl_px30.o
>   obj-$(CONFIG_ROCKCHIP_SDRAM_COMMON) += sdram_common.o
> diff --git a/drivers/ram/rockchip/sdram_rk3588.c b/drivers/ram/rockchip/sdram_rk3588.c
> new file mode 100644
> index 0000000000..cf56e2a941
> --- /dev/null
> +++ b/drivers/ram/rockchip/sdram_rk3588.c
> @@ -0,0 +1,57 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * (C) Copyright 2021 Rockchip Electronics Co., Ltd.
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <ram.h>
> +#include <syscon.h>
> +#include <asm/arch-rockchip/clock.h>
> +#include <asm/arch-rockchip/grf_rk3588.h>
> +#include <asm/arch-rockchip/sdram.h>
> +
> +struct dram_info {
> +	struct ram_info info;
> +	struct rk3588_pmu1grf *pmugrf;
> +};
> +
> +static int rk3588_dmc_probe(struct udevice *dev)
> +{
> +	struct dram_info *priv = dev_get_priv(dev);
> +
> +	priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
> +	priv->info.base = CFG_SYS_SDRAM_BASE;
> +	priv->info.size =
> +		rockchip_sdram_size((phys_addr_t)&priv->pmugrf->os_reg[2]) +
> +		rockchip_sdram_size((phys_addr_t)&priv->pmugrf->os_reg[4]);
> +
> +	return 0;
> +}
> +
> +static int rk3588_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 rk3588_dmc_ops = {
> +	.get_info = rk3588_dmc_get_info,
> +};
> +
> +static const struct udevice_id rk3588_dmc_ids[] = {
> +	{ .compatible = "rockchip,rk3588-dmc" },
> +	{ }
> +};
> +
> +U_BOOT_DRIVER(dmc_rk3588) = {
> +	.name = "rockchip_rk3588_dmc",
> +	.id = UCLASS_RAM,
> +	.of_match = rk3588_dmc_ids,
> +	.ops = &rk3588_dmc_ops,
> +	.probe = rk3588_dmc_probe,
> +	.priv_auto = sizeof(struct dram_info),
> +};