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Fri, 10 Jun 2022 16:32:21 +0900 (KST) Received: from Jaguar.sa.corp.samsungelectronics.net (unknown [107.108.73.139]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20220610073218epsmtip15c39da440d169979a904aa6f992b1cb5~3Mfo23NJX3168331683epsmtip1a; Fri, 10 Jun 2022 07:32:18 +0000 (GMT) From: Alim Akhtar To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-phy@lists.infradead.org Cc: devicetree@vger.kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, vkoul@kernel.org, avri.altman@wdc.com, bvanassche@acm.org, martin.petersen@oracle.com, chanho61.park@samsung.com, pankaj.dubey@samsung.com, Alim Akhtar , Bharat Uppal Subject: [PATCH v3 6/6] ufs: host: ufs-exynos: add support for fsd ufs hci Date: Fri, 10 Jun 2022 12:59:24 +0530 Message-Id: <20220610072924.12362-7-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220610072924.12362-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpnk+LIzCtJLcpLzFFi42LZdlhTU7ft86Ikg79NEhYP5m1js3j58yqb xbWXF9gtpn34yWxxeb+2xfwj51gt+l48ZLbY9Pgaq8XlXXPYLCas+sZi0X19B5vF8uP/mCwW bf3CbtG69wi7xc47J5gd+D0uX/H22LSqk83jzrU9bB6bl9R7fHx6i8Wjb8sqRo/Pm+Q82g90 MwVwRGXbZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE6Lpl5gCd rqRQlphTChQKSCwuVtK3synKLy1JVcjILy6xVUotSMkpMCnQK07MLS7NS9fLSy2xMjQwMDIF KkzIzljYcJe9YJdFxcplt9kaGNv1uxg5OSQETCR+flzP1MXIxSEksJtRYvLie2wQzidGiV33 bkM5nxklrj14yQjT8mXtBaiWXYwSH/d8h6pqYZLYMPMsWBWbgLbE3elbwKpEBJoZJQ527AJz mAV2Mklc/D2dGaRKWMBLYv7fTrAOFgFVibuz9rF0MXJw8ArYSLx76g2xTl5i9YYDYOWcArYS Z/9vYAaZIyEwlUNiXmcLO0SRi8SxeUdZIGxhiVfHt0DFpSQ+v9vLBjJTQsBDYtEfKYhwhsTb 5euh3rGXOHBlDthaZgFNifW7wAHDLMAn0fv7CRNEJ69ER5sQRLWqRPO7q1CLpCUmdnezwgw/ cS4OEgwTGCW2NrewTmCUnYUwdAEj4ypGydSC4tz01GLTAqO81HJ4RCXn525iBKdILa8djA8f fNA7xMjEwXiIUYKDWUmEN+D2oiQh3pTEyqrUovz4otKc1OJDjKbAAJvILCWanA9M0nkl8YYm lgYmZmZmJpbGZoZK4rwC/xuThATSE0tSs1NTC1KLYPqYODilGpi8/9XsbHv3+eLiX2yXL3Cm Vr332rli4Q6tP7alGxlKX+z61h9eMHn9sYO7FSctlV/YvvC/g5P/JtZYfh6xRRfe9C6dvfp/ +NcX89h9J5zZx/YgNJLnoIjaLUfB77FWxfMNKhoPnnlscXVWpdL7fem5OvdmHmc+pbuTscau 4dS2x19V9qcrxbE+WTrnd+tHs/Ae7XPmjSzV7T73rRJ4F89Z/nBrimiU81XDzuoy/Yr5X/Y3 nDR5s3RJ36PyxQrfgrcuV7a7kxt/i9v/6MNIz2kXONZ9fCy1hq+cteWGrLVU1vTOd9MU4/W9 XrjWS9+/uNFeWX+zReddj7i6lMLKP/Obr1w5OI/P17El+snDqY/vKrEUZyQaajEXFScCABWa Pv4aBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFLMWRmVeSWpSXmKPExsWy7bCSnG7r50VJBheOqFg8mLeNzeLlz6ts FtdeXmC3mPbhJ7PF5f3aFvOPnGO16HvxkNli0+NrrBaXd81hs5iw6huLRff1HWwWy4//Y7JY tPULu0Xr3iPsFjvvnGB24Pe4fMXbY9OqTjaPO9f2sHlsXlLv8fHpLRaPvi2rGD0+b5LzaD/Q zRTAEcVlk5Kak1mWWqRvl8CVsbDhLnvBLouKlctuszUwtut3MXJySAiYSHxZe4Gpi5GLQ0hg B6PEknX3WSAS0hLXN05gh7CFJVb+e84OUdTEJDHl5XFmkASbgLbE3elbmEBsEYF2Ron729lA ipgFjjJJLD91DKxIWMBLYv7fTkYQm0VAVeLurH1AGzg4eAVsJN499YZYIC+xesMBsHJOAVuJ s/83MIOUCAGVvP6bN4GRbwEjwypGydSC4tz03GLDAqO81HK94sTc4tK8dL3k/NxNjODg1tLa wbhn1Qe9Q4xMHIyHGCU4mJVEeANuL0oS4k1JrKxKLcqPLyrNSS0+xCjNwaIkznuh62S8kEB6 YklqdmpqQWoRTJaJg1OqgWn9wv9T9T7Vnzw3Oz+3za31jfBesXzLuX6HlrY/CDTNP6LPeaq9 U3LTu/tcAfocfx6+FiwIFFbYcUIiOGx+yJTPh/TOBa6rMTuvXPjFnn9BTa9G18YD73/Mtkni d1aXKSxi6Luzs9/b2swnRLZD7xE/X7zKNRkBnoD7e6/aLO495a7Rs6b5xwNexgSLV9ENBXzz 9m1K2p7D9tGPzVnA/ejkF1s56p/ELGZc+/eulrDImu6TiapHbha47H8asufUEg3dyX1Sr1VV Ti02m7dYMS9eJnrqJe7Jfrq62j3tt3n2dBf7NHhfK57oejS33+3smRs1wXpZfq+X/UtPdPv0 W/VhsG6o9GXBS7OUGuVklFiKMxINtZiLihMBfwAN6d0CAAA= X-CMS-MailID: 20220610073221epcas5p2307590d637c53e2a94b65b45a6fcb950 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220610073221epcas5p2307590d637c53e2a94b65b45a6fcb950 References: <20220610072924.12362-1-alim.akhtar@samsung.com> X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adds support of UFS HCI which is found in Tesla Full Self-Driving (FSD) SoC. Signed-off-by: Bharat Uppal Signed-off-by: Alim Akhtar --- drivers/ufs/host/ufs-exynos.c | 140 ++++++++++++++++++++++++++++++++++ drivers/ufs/host/ufs-exynos.h | 1 + 2 files changed, 141 insertions(+) diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index cc128aff8871..19068605d9fe 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -146,6 +146,10 @@ enum { #define UNIPRO_DME_PWR_REQ_REMOTEL2TIMER1 0x0A8 #define UNIPRO_DME_PWR_REQ_REMOTEL2TIMER2 0x0AC +#define DME_POWERMODE_REQ_REMOTEL2TIMER0 0x78B8 +#define DME_POWERMODE_REQ_REMOTEL2TIMER1 0x78BC +#define DME_POWERMODE_REQ_REMOTEL2TIMER2 0x78C0 + /* * UFS Protector registers */ @@ -1474,6 +1478,99 @@ static int exynosauto_ufs_vh_init(struct ufs_hba *hba) return 0; } +static int fsd_ufs_pre_link(struct exynos_ufs *ufs) +{ + int i; + struct ufs_hba *hba = ufs->hba; + + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_CLK_PERIOD), + DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate)); + ufshcd_dme_set(hba, UIC_ARG_MIB(0x201), 0x12); + ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x40); + + for_each_ufs_tx_lane(ufs, i) { + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xAA, i), + DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate)); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8F, i), 0x3F); + } + + for_each_ufs_rx_lane(ufs, i) { + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x12, i), + DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate)); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x5C, i), 0x38); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0F, i), 0x0); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x65, i), 0x1); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x69, i), 0x1); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x21, i), 0x0); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x22, i), 0x0); + } + + ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x0); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_AUTOMODE_THLD), 0x4E20); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_OPTION_SUITE), 0x2e820183); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0x0); + + exynos_ufs_establish_connt(ufs); + + return 0; +} + +static int fsd_ufs_post_link(struct exynos_ufs *ufs) +{ + int i; + struct ufs_hba *hba = ufs->hba; + u32 hw_cap_min_tactivate; + u32 peer_rx_min_actv_time_cap; + u32 max_rx_hibern8_time_cap; + + ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0x8F, 4), + &hw_cap_min_tactivate); /* HW Capability of MIN_TACTIVATE */ + ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), + &peer_rx_min_actv_time_cap); /* PA_TActivate */ + ufshcd_dme_get(hba, UIC_ARG_MIB(PA_HIBERN8TIME), + &max_rx_hibern8_time_cap); /* PA_Hibern8Time */ + + if (peer_rx_min_actv_time_cap >= hw_cap_min_tactivate) + ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE), + peer_rx_min_actv_time_cap + 1); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HIBERN8TIME), max_rx_hibern8_time_cap + 1); + + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_MODE), 0x01); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_SAVECONFIGTIME), 0xFA); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_MODE), 0x00); + + ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x40); + + for_each_ufs_rx_lane(ufs, i) { + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x35, i), 0x05); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x73, i), 0x01); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x41, i), 0x02); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x42, i), 0xAC); + } + + ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x0); + + return 0; +} + +static int fsd_ufs_pre_pwr_change(struct exynos_ufs *ufs, + struct ufs_pa_layer_attr *pwr) +{ + struct ufs_hba *hba = ufs->hba; + + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXTERMINATION), 0x1); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXTERMINATION), 0x1); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0), 12000); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1), 32000); + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA2), 16000); + + unipro_writel(ufs, 12000, DME_POWERMODE_REQ_REMOTEL2TIMER0); + unipro_writel(ufs, 32000, DME_POWERMODE_REQ_REMOTEL2TIMER1); + unipro_writel(ufs, 16000, DME_POWERMODE_REQ_REMOTEL2TIMER2); + + return 0; +} + static struct ufs_hba_variant_ops ufs_hba_exynos_ops = { .name = "exynos_ufs", .init = exynos_ufs_init, @@ -1596,6 +1693,47 @@ static struct exynos_ufs_drv_data exynos_ufs_drvs = { .post_pwr_change = exynos7_ufs_post_pwr_change, }; +static struct exynos_ufs_uic_attr fsd_uic_attr = { + .tx_trailingclks = 0x10, + .tx_dif_p_nsec = 3000000, /* unit: ns */ + .tx_dif_n_nsec = 1000000, /* unit: ns */ + .tx_high_z_cnt_nsec = 20000, /* unit: ns */ + .tx_base_unit_nsec = 100000, /* unit: ns */ + .tx_gran_unit_nsec = 4000, /* unit: ns */ + .tx_sleep_cnt = 1000, /* unit: ns */ + .tx_min_activatetime = 0xa, + .rx_filler_enable = 0x2, + .rx_dif_p_nsec = 1000000, /* unit: ns */ + .rx_hibern8_wait_nsec = 4000000, /* unit: ns */ + .rx_base_unit_nsec = 100000, /* unit: ns */ + .rx_gran_unit_nsec = 4000, /* unit: ns */ + .rx_sleep_cnt = 1280, /* unit: ns */ + .rx_stall_cnt = 320, /* unit: ns */ + .rx_hs_g1_sync_len_cap = SYNC_LEN_COARSE(0xf), + .rx_hs_g2_sync_len_cap = SYNC_LEN_COARSE(0xf), + .rx_hs_g3_sync_len_cap = SYNC_LEN_COARSE(0xf), + .rx_hs_g1_prep_sync_len_cap = PREP_LEN(0xf), + .rx_hs_g2_prep_sync_len_cap = PREP_LEN(0xf), + .rx_hs_g3_prep_sync_len_cap = PREP_LEN(0xf), + .pa_dbg_option_suite = 0x2E820183, +}; + +struct exynos_ufs_drv_data fsd_ufs_drvs = { + .uic_attr = &fsd_uic_attr, + .quirks = UFSHCD_QUIRK_PRDT_BYTE_GRAN | + UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR | + UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR | + UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING | + UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR, + .opts = EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL | + EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL | + EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR | + EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX, + .pre_link = fsd_ufs_pre_link, + .post_link = fsd_ufs_post_link, + .pre_pwr_change = fsd_ufs_pre_pwr_change, +}; + static const struct of_device_id exynos_ufs_of_match[] = { { .compatible = "samsung,exynos7-ufs", .data = &exynos_ufs_drvs }, @@ -1603,6 +1741,8 @@ static const struct of_device_id exynos_ufs_of_match[] = { .data = &exynosauto_ufs_drvs }, { .compatible = "samsung,exynosautov9-ufs-vh", .data = &exynosauto_ufs_vh_drvs }, + { .compatible = "tesla,fsd-ufs", + .data = &fsd_ufs_drvs }, {}, }; diff --git a/drivers/ufs/host/ufs-exynos.h b/drivers/ufs/host/ufs-exynos.h index 0b0a3d530ca6..a4bd6646d7f1 100644 --- a/drivers/ufs/host/ufs-exynos.h +++ b/drivers/ufs/host/ufs-exynos.h @@ -22,6 +22,7 @@ #define PA_DBG_RXPHY_CFGUPDT 0x9519 #define PA_DBG_MODE 0x9529 #define PA_DBG_SKIP_RESET_PHY 0x9539 +#define PA_DBG_AUTOMODE_THLD 0x9536 #define PA_DBG_OV_TM 0x9540 #define PA_DBG_SKIP_LINE_RESET 0x9541 #define PA_DBG_LINE_RESET_REQ 0x9543 -- 2.25.1