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linuxOS_AP06/u-boot/drivers/ufs/ufs-rockchip.c
hyx f2ecbedc91 v1.1.1
2025-06-03 12:28:32 +08:00

278 lines
7.6 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Rockchip UFS Host Controller driver
*
* Copyright (C) 2024 Rockchip Electronics Co.Ltd.
*/
#include <asm/io.h>
#include <clk.h>
#include <common.h>
#include <dm.h>
#include <linux/err.h>
#include <linux/ioport.h>
#include <reset.h>
#include <ufs.h>
#include "ufs.h"
#include "unipro.h"
#include "ufs-rockchip.h"
extern int ufshcd_dme_enable(struct ufs_hba *hba);
static int ufs_rockchip_hce_enable_notify(struct ufs_hba *hba,
enum ufs_notify_change_status status)
{
int err = 0;
if (status == POST_CHANGE) {
ufshcd_dme_reset(hba);
ufshcd_dme_enable(hba);
if (hba->ops->phy_initialization) {
err = hba->ops->phy_initialization(hba);
if (err) {
dev_err(hba->dev, "Phy setup failed (%d)\n", err);
}
}
}
return err;
}
static int ufs_rockchip_startup_notify(struct ufs_hba *hba,
enum ufs_notify_change_status status)
{
int err = 0;
if (status == POST_CHANGE) {
if (hba->ops->phy_parameter_initialization) {
err = hba->ops->phy_parameter_initialization(hba);
if (err) {
dev_err(hba->dev, "Phy setup failed (%d)\n", err);
}
}
}
return err;
}
static const unsigned char rk3576_phy_value[15][4] = {
{0x03, 0x38, 0x50, 0x80},
{0x03, 0x14, 0x58, 0x80},
{0x03, 0x26, 0x58, 0x80},
{0x03, 0x49, 0x58, 0x80},
{0x03, 0x5A, 0x58, 0x80},
{0xC3, 0x38, 0x50, 0xC0},
{0xC3, 0x14, 0x58, 0xC0},
{0xC3, 0x26, 0x58, 0xC0},
{0xC3, 0x49, 0x58, 0xC0},
{0xC3, 0x5A, 0x58, 0xC0},
{0x43, 0x38, 0x50, 0xC0},
{0x43, 0x14, 0x58, 0xC0},
{0x43, 0x26, 0x58, 0xC0},
{0x43, 0x49, 0x58, 0xC0},
{0x43, 0x5A, 0x58, 0xC0}
};
static int ufs_rockchip_rk3576_phy_parameter_init(struct ufs_hba *hba)
{
struct ufs_rockchip_host *host = dev_get_priv(hba->dev);
int try_case = host->phy_config_mode, value;
ufs_sys_writel(host->mphy_base, 0x80, 0x08C);
ufs_sys_writel(host->mphy_base, 0xB5, 0x110);
ufs_sys_writel(host->mphy_base, 0xB5, 0x250);
value = rk3576_phy_value[try_case][0];
ufs_sys_writel(host->mphy_base, value, 0x134);
ufs_sys_writel(host->mphy_base, value, 0x274);
value = rk3576_phy_value[try_case][1];
ufs_sys_writel(host->mphy_base, value, 0x0E0);
ufs_sys_writel(host->mphy_base, value, 0x220);
value = rk3576_phy_value[try_case][2];
ufs_sys_writel(host->mphy_base, value, 0x164);
ufs_sys_writel(host->mphy_base, value, 0x2A4);
value = rk3576_phy_value[try_case][3];
ufs_sys_writel(host->mphy_base, value, 0x178);
ufs_sys_writel(host->mphy_base, value, 0x2B8);
ufs_sys_writel(host->mphy_base, 0x18, 0x1B0);
ufs_sys_writel(host->mphy_base, 0x18, 0x2F0);
ufs_sys_writel(host->mphy_base, 0xC0, 0x120);
ufs_sys_writel(host->mphy_base, 0xC0, 0x260);
ufs_sys_writel(host->mphy_base, 0x03, 0x094);
ufs_sys_writel(host->mphy_base, 0x03, 0x1B4);
ufs_sys_writel(host->mphy_base, 0x03, 0x2F4);
ufs_sys_writel(host->mphy_base, 0xC0, 0x08C);
udelay(1);
ufs_sys_writel(host->mphy_base, 0x00, 0x08C);
udelay(200);
return 0;
}
static int ufs_rockchip_rk3576_phy_init(struct ufs_hba *hba)
{
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(PA_LOCAL_TX_LCC_ENABLE, 0x0), 0x0);
/* enable the mphy DME_SET cfg */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x200, 0x0), 0x40);
for (int i = 0; i < 2; i++) {
/* Configuration M-TX */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xaa, SEL_TX_LANE0 + i), 0x06);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xa9, SEL_TX_LANE0 + i), 0x02);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xad, SEL_TX_LANE0 + i), 0x44);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xac, SEL_TX_LANE0 + i), 0xe6);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xab, SEL_TX_LANE0 + i), 0x07);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x94, SEL_TX_LANE0 + i), 0x93);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x93, SEL_TX_LANE0 + i), 0xc9);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x7f, SEL_TX_LANE0 + i), 0x00);
/* Configuration M-RX */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x12, SEL_RX_LANE0 + i), 0x06);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x11, SEL_RX_LANE0 + i), 0x00);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1d, SEL_RX_LANE0 + i), 0x58);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1c, SEL_RX_LANE0 + i), 0x8c);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1b, SEL_RX_LANE0 + i), 0x02);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x25, SEL_RX_LANE0 + i), 0xf6);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x2f, SEL_RX_LANE0 + i), 0x69);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x1e, SEL_RX_LANE0 + i), 0x18);
}
/* disable the mphy DME_SET cfg */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x200, 0x0), 0x00);
/* start link up */
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(MIB_T_DBG_CPORT_TX_ENDIAN, 0), 0x0);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(MIB_T_DBG_CPORT_RX_ENDIAN, 0), 0x0);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(N_DEVICEID, 0), 0x0);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(N_DEVICEID_VALID, 0), 0x1);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(T_PEERDEVICEID, 0), 0x1);
ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(T_CONNECTIONSTATE, 0), 0x1);
return 0;
}
static int ufs_rockchip_common_init(struct ufs_hba *hba)
{
struct udevice *dev = hba->dev;
struct ufs_rockchip_host *host = dev_get_priv(dev);
struct resource res;
int err = 0;
/* system control register for hci */
err = dev_read_resource_byname(dev, "hci_grf", &res);
if (err) {
dev_err(dev, "cannot ioremap for hci system control register\n");
return -ENODEV;
}
host->ufs_sys_ctrl = (void *)(res.start);
/* system control register for mphy */
err = dev_read_resource_byname(dev, "mphy_grf", &res);
if (err) {
dev_err(dev, "cannot ioremap for mphy system control register\n");
return -ENODEV;
}
host->ufs_phy_ctrl = (void *)(res.start);
/* mphy base register */
err = dev_read_resource_byname(dev, "mphy", &res);
if (err) {
dev_err(dev, "cannot ioremap for mphy base register\n");
return -ENODEV;
}
host->mphy_base = (void *)(res.start);
host->phy_config_mode = dev_read_u32_default(dev, "ufs-phy-config-mode", 0);
err = reset_get_bulk(dev, &host->rsts);
if (err) {
dev_err(dev, "Can't get reset: %d\n", err);
return err;
}
host->hba = hba;
return 0;
}
static int ufs_rockchip_rk3576_init(struct ufs_hba *hba)
{
struct udevice *dev = hba->dev;
struct ufs_rockchip_host *host = dev_get_priv(dev);
int ret = 0;
ret = ufs_rockchip_common_init(hba);
if (ret) {
dev_err(hba->dev, "%s: ufs common init fail\n", __func__);
return ret;
}
/* UFS PHY select 26M from ppll */
writel(0x00030002, 0x2722030C);
/* Set UFS_REFCLK, UFS_RSTN */
writel(0x00FF0011, 0x2604B398);
/* Reset ufs controller and device */
reset_assert_bulk(&host->rsts);
writel(0x00100000, 0x2604B400);
udelay(20);
writel(0x00100010, 0x2604B400);
reset_deassert_bulk(&host->rsts);
udelay(20);
return 0;
}
static struct ufs_hba_ops ufs_hba_rk3576_vops = {
.init = ufs_rockchip_rk3576_init,
.phy_initialization = ufs_rockchip_rk3576_phy_init,
.hce_enable_notify = ufs_rockchip_hce_enable_notify,
.link_startup_notify = ufs_rockchip_startup_notify,
.phy_parameter_initialization = ufs_rockchip_rk3576_phy_parameter_init,
};
static const struct udevice_id ufs_rockchip_of_match[] = {
{ .compatible = "rockchip,rk3576-ufs", .data = (ulong)&ufs_hba_rk3576_vops},
{},
};
static int ufs_rockchip_probe(struct udevice *dev)
{
struct ufs_hba_ops *ops = (struct ufs_hba_ops *)dev_get_driver_data(dev);
int err;
err = ufshcd_probe(dev, ops);
if (err)
dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
return err;
}
static int ufs_rockchip_bind(struct udevice *dev)
{
struct udevice *scsi_dev;
return ufs_scsi_bind(dev, &scsi_dev);
}
U_BOOT_DRIVER(ti_j721e_ufs) = {
.name = "ufshcd-rockchip",
.id = UCLASS_UFS,
.of_match = ufs_rockchip_of_match,
.probe = ufs_rockchip_probe,
.bind = ufs_rockchip_bind,
.priv_auto_alloc_size = sizeof(struct ufs_rockchip_host),
};
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