From patchwork Fri Jul 21 03:57:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 9855995 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8016D60385 for ; Fri, 21 Jul 2017 03:58:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8088128732 for ; Fri, 21 Jul 2017 03:58:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 757DA28736; Fri, 21 Jul 2017 03:58:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E0E6428732 for ; Fri, 21 Jul 2017 03:58:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754933AbdGUD6G (ORCPT ); Thu, 20 Jul 2017 23:58:06 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:50679 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753834AbdGUD53 (ORCPT ); Thu, 20 Jul 2017 23:57:29 -0400 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1592452976; Fri, 21 Jul 2017 11:57:24 +0800 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Fri, 21 Jul 2017 11:57:22 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkexhb02.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Fri, 21 Jul 2017 11:57:23 +0800 From: To: , , , CC: , , , , , , Chen Zhong , Sean Wang Subject: [PATCH 3/3] soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC Date: Fri, 21 Jul 2017 11:57:14 +0800 Message-ID: <284911261d7e423e5bb47625858b3284be713a1b.1500608650.git.sean.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Chen Zhong Add SCPSYS power domain driver for MT7622 SoC having four power domains which are respectively ETHSYS for Ethernet including embedded switch, WBSYS for WIFI and Bluetooth, HIF0SYS for PCI-E and SATA, and HIF1SYS for USB. Those functions could be selectively powered gated when the corresponding function is no longer to use in order to reach more minimal power dissipation. Signed-off-by: Chen Zhong Signed-off-by: Sean Wang --- drivers/soc/mediatek/mtk-scpsys.c | 76 +++++++++++++++++++++++++++++++++++ include/linux/soc/mediatek/infracfg.h | 8 +++- 2 files changed, 83 insertions(+), 1 deletion(-) diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c index beb7916..8a0ca02 100644 --- a/drivers/soc/mediatek/mtk-scpsys.c +++ b/drivers/soc/mediatek/mtk-scpsys.c @@ -21,6 +21,7 @@ #include #include +#include #include #define SPM_VDE_PWR_CON 0x0210 @@ -38,6 +39,11 @@ #define SPM_MFG_2D_PWR_CON 0x02c0 #define SPM_MFG_ASYNC_PWR_CON 0x02c4 #define SPM_USB_PWR_CON 0x02cc +#define SPM_ETHSYS_PWR_CON 0x02e0 /* MT7622 */ +#define SPM_HIF0_PWR_CON 0x02e4 /* MT7622 */ +#define SPM_HIF1_PWR_CON 0x02e8 /* MT7622 */ +#define SPM_WB_PWR_CON 0x02ec /* MT7622 */ + #define SPM_PWR_STATUS 0x060c #define SPM_PWR_STATUS_2ND 0x0610 @@ -63,6 +69,10 @@ #define PWR_STATUS_MFG_ASYNC BIT(23) #define PWR_STATUS_AUDIO BIT(24) #define PWR_STATUS_USB BIT(25) +#define PWR_STATUS_ETHSYS BIT(24) /* MT7622 */ +#define PWR_STATUS_HIF0 BIT(25) /* MT7622 */ +#define PWR_STATUS_HIF1 BIT(26) /* MT7622 */ +#define PWR_STATUS_WB BIT(27) /* MT7622 */ enum clk_id { CLK_NONE, @@ -71,6 +81,7 @@ enum clk_id { CLK_VENC, CLK_VENC_LT, CLK_ETHIF, + CLK_HIFSEL, CLK_MAX, }; @@ -81,6 +92,7 @@ static const char * const clk_names[] = { "venc", "venc_lt", "ethif", + "hif_sel", NULL, }; @@ -567,6 +579,67 @@ static int __init scpsys_probe_mt2701(struct platform_device *pdev) } /* + * MT7622 power domain support + */ +static const struct scp_domain_data scp_domain_data_mt7622[] = { + [MT7622_POWER_DOMAIN_ETHSYS] = { + .name = "ethsys", + .sta_mask = PWR_STATUS_ETHSYS, + .ctl_offs = SPM_ETHSYS_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_NONE}, + .bus_prot_mask = MT7622_TOP_AXI_PROT_EN_ETHSYS, + .active_wakeup = true, + }, + [MT7622_POWER_DOMAIN_HIF0] = { + .name = "hif0", + .sta_mask = PWR_STATUS_HIF0, + .ctl_offs = SPM_HIF0_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_HIFSEL}, + .bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF0, + .active_wakeup = true, + }, + [MT7622_POWER_DOMAIN_HIF1] = { + .name = "hif1", + .sta_mask = PWR_STATUS_HIF1, + .ctl_offs = SPM_HIF1_PWR_CON, + .sram_pdn_bits = GENMASK(11, 8), + .sram_pdn_ack_bits = GENMASK(15, 12), + .clk_id = {CLK_HIFSEL}, + .bus_prot_mask = MT7622_TOP_AXI_PROT_EN_HIF1, + .active_wakeup = true, + }, + [MT7622_POWER_DOMAIN_WB] = { + .name = "wb", + .sta_mask = PWR_STATUS_WB, + .ctl_offs = SPM_WB_PWR_CON, + .sram_pdn_bits = 0, + .sram_pdn_ack_bits = 0, + .clk_id = {CLK_NONE}, + .bus_prot_mask = MT7622_TOP_AXI_PROT_EN_WB, + .active_wakeup = true, + }, +}; + +#define NUM_DOMAINS_MT7622 ARRAY_SIZE(scp_domain_data_mt7622) + +static int __init scpsys_probe_mt7622(struct platform_device *pdev) +{ + struct scp *scp; + + scp = init_scp(pdev, scp_domain_data_mt7622, NUM_DOMAINS_MT7622); + if (IS_ERR(scp)) + return PTR_ERR(scp); + + mtk_register_power_domains(pdev, scp, NUM_DOMAINS_MT7622); + + return 0; +} + +/* * MT8173 power domain support */ @@ -698,6 +771,9 @@ static const struct of_device_id of_scpsys_match_tbl[] = { .compatible = "mediatek,mt2701-scpsys", .data = scpsys_probe_mt2701, }, { + .compatible = "mediatek,mt7622-scpsys", + .data = scpsys_probe_mt7622, + }, { .compatible = "mediatek,mt8173-scpsys", .data = scpsys_probe_mt8173, }, { diff --git a/include/linux/soc/mediatek/infracfg.h b/include/linux/soc/mediatek/infracfg.h index a5714e9..c1e5062 100644 --- a/include/linux/soc/mediatek/infracfg.h +++ b/include/linux/soc/mediatek/infracfg.h @@ -20,7 +20,13 @@ #define MT8173_TOP_AXI_PROT_EN_MFG_M1 BIT(22) #define MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT BIT(23) +#define MT7622_TOP_AXI_PROT_EN_ETHSYS (BIT(3) | BIT(17)) +#define MT7622_TOP_AXI_PROT_EN_HIF0 (BIT(24) | BIT(25)) +#define MT7622_TOP_AXI_PROT_EN_HIF1 (BIT(26) | BIT(27) | \ + BIT(28)) +#define MT7622_TOP_AXI_PROT_EN_WB (BIT(2) | BIT(6) | \ + BIT(7) | BIT(8)) + int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask); int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask); - #endif /* __SOC_MEDIATEK_INFRACFG_H */