![Weiyi Lu](/assets/img/avatar_default.png)
Put bus protection enable and disable control in separate functions. Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
1147 lines
28 KiB
C
1147 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2015 Pengutronix, Sascha Hauer <kernel@pengutronix.de>
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*/
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#include <linux/clk.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/iopoll.h>
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#include <linux/mfd/syscon.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_domain.h>
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#include <linux/regulator/consumer.h>
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#include <linux/soc/mediatek/infracfg.h>
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#include <dt-bindings/power/mt2701-power.h>
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#include <dt-bindings/power/mt2712-power.h>
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#include <dt-bindings/power/mt6797-power.h>
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#include <dt-bindings/power/mt7622-power.h>
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#include <dt-bindings/power/mt7623a-power.h>
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#include <dt-bindings/power/mt8173-power.h>
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#define MTK_POLL_DELAY_US 10
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#define MTK_POLL_TIMEOUT USEC_PER_SEC
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#define MTK_SCPD_ACTIVE_WAKEUP BIT(0)
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#define MTK_SCPD_FWAIT_SRAM BIT(1)
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#define MTK_SCPD_CAPS(_scpd, _x) ((_scpd)->data->caps & (_x))
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#define SPM_VDE_PWR_CON 0x0210
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#define SPM_MFG_PWR_CON 0x0214
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#define SPM_VEN_PWR_CON 0x0230
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#define SPM_ISP_PWR_CON 0x0238
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#define SPM_DIS_PWR_CON 0x023c
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#define SPM_CONN_PWR_CON 0x0280
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#define SPM_VEN2_PWR_CON 0x0298
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#define SPM_AUDIO_PWR_CON 0x029c /* MT8173, MT2712 */
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#define SPM_BDP_PWR_CON 0x029c /* MT2701 */
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#define SPM_ETH_PWR_CON 0x02a0
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#define SPM_HIF_PWR_CON 0x02a4
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#define SPM_IFR_MSC_PWR_CON 0x02a8
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#define SPM_MFG_2D_PWR_CON 0x02c0
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#define SPM_MFG_ASYNC_PWR_CON 0x02c4
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#define SPM_USB_PWR_CON 0x02cc
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#define SPM_USB2_PWR_CON 0x02d4 /* MT2712 */
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#define SPM_ETHSYS_PWR_CON 0x02e0 /* MT7622 */
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#define SPM_HIF0_PWR_CON 0x02e4 /* MT7622 */
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#define SPM_HIF1_PWR_CON 0x02e8 /* MT7622 */
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#define SPM_WB_PWR_CON 0x02ec /* MT7622 */
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#define SPM_PWR_STATUS 0x060c
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#define SPM_PWR_STATUS_2ND 0x0610
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#define PWR_RST_B_BIT BIT(0)
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#define PWR_ISO_BIT BIT(1)
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#define PWR_ON_BIT BIT(2)
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#define PWR_ON_2ND_BIT BIT(3)
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#define PWR_CLK_DIS_BIT BIT(4)
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#define PWR_STATUS_CONN BIT(1)
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#define PWR_STATUS_DISP BIT(3)
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#define PWR_STATUS_MFG BIT(4)
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#define PWR_STATUS_ISP BIT(5)
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#define PWR_STATUS_VDEC BIT(7)
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#define PWR_STATUS_BDP BIT(14)
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#define PWR_STATUS_ETH BIT(15)
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#define PWR_STATUS_HIF BIT(16)
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#define PWR_STATUS_IFR_MSC BIT(17)
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#define PWR_STATUS_USB2 BIT(19) /* MT2712 */
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#define PWR_STATUS_VENC_LT BIT(20)
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#define PWR_STATUS_VENC BIT(21)
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#define PWR_STATUS_MFG_2D BIT(22) /* MT8173 */
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#define PWR_STATUS_MFG_ASYNC BIT(23) /* MT8173 */
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#define PWR_STATUS_AUDIO BIT(24) /* MT8173, MT2712 */
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#define PWR_STATUS_USB BIT(25) /* MT8173, MT2712 */
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#define PWR_STATUS_ETHSYS BIT(24) /* MT7622 */
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#define PWR_STATUS_HIF0 BIT(25) /* MT7622 */
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#define PWR_STATUS_HIF1 BIT(26) /* MT7622 */
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#define PWR_STATUS_WB BIT(27) /* MT7622 */
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enum clk_id {
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CLK_NONE,
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CLK_MM,
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CLK_MFG,
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CLK_VENC,
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CLK_VENC_LT,
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CLK_ETHIF,
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CLK_VDEC,
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CLK_HIFSEL,
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CLK_JPGDEC,
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CLK_AUDIO,
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CLK_MAX,
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};
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static const char * const clk_names[] = {
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NULL,
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"mm",
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"mfg",
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"venc",
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"venc_lt",
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"ethif",
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"vdec",
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"hif_sel",
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"jpgdec",
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"audio",
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NULL,
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};
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#define MAX_CLKS 3
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/**
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* struct scp_domain_data - scp domain data for power on/off flow
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* @name: The domain name.
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* @sta_mask: The mask for power on/off status bit.
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* @ctl_offs: The offset for main power control register.
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* @sram_pdn_bits: The mask for sram power control bits.
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* @sram_pdn_ack_bits: The mask for sram power control acked bits.
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* @bus_prot_mask: The mask for single step bus protection.
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* @clk_id: The basic clocks required by this power domain.
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* @caps: The flag for active wake-up action.
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*/
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struct scp_domain_data {
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const char *name;
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u32 sta_mask;
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int ctl_offs;
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u32 sram_pdn_bits;
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u32 sram_pdn_ack_bits;
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u32 bus_prot_mask;
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enum clk_id clk_id[MAX_CLKS];
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u8 caps;
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};
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struct scp;
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struct scp_domain {
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struct generic_pm_domain genpd;
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struct scp *scp;
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struct clk *clk[MAX_CLKS];
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const struct scp_domain_data *data;
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struct regulator *supply;
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};
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struct scp_ctrl_reg {
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int pwr_sta_offs;
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int pwr_sta2nd_offs;
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};
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struct scp {
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struct scp_domain *domains;
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struct genpd_onecell_data pd_data;
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struct device *dev;
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void __iomem *base;
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struct regmap *infracfg;
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struct scp_ctrl_reg ctrl_reg;
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bool bus_prot_reg_update;
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};
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struct scp_subdomain {
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int origin;
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int subdomain;
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};
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struct scp_soc_data {
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const struct scp_domain_data *domains;
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int num_domains;
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const struct scp_subdomain *subdomains;
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int num_subdomains;
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const struct scp_ctrl_reg regs;
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bool bus_prot_reg_update;
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};
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static int scpsys_domain_is_on(struct scp_domain *scpd)
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{
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struct scp *scp = scpd->scp;
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u32 status = readl(scp->base + scp->ctrl_reg.pwr_sta_offs) &
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scpd->data->sta_mask;
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u32 status2 = readl(scp->base + scp->ctrl_reg.pwr_sta2nd_offs) &
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scpd->data->sta_mask;
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/*
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* A domain is on when both status bits are set. If only one is set
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* return an error. This happens while powering up a domain
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*/
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if (status && status2)
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return true;
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if (!status && !status2)
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return false;
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return -EINVAL;
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}
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static int scpsys_regulator_enable(struct scp_domain *scpd)
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{
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if (!scpd->supply)
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return 0;
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return regulator_enable(scpd->supply);
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}
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static int scpsys_regulator_disable(struct scp_domain *scpd)
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{
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if (!scpd->supply)
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return 0;
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return regulator_disable(scpd->supply);
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}
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static void scpsys_clk_disable(struct clk *clk[], int max_num)
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{
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int i;
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for (i = max_num - 1; i >= 0; i--)
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clk_disable_unprepare(clk[i]);
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}
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static int scpsys_clk_enable(struct clk *clk[], int max_num)
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{
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int i, ret = 0;
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for (i = 0; i < max_num && clk[i]; i++) {
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ret = clk_prepare_enable(clk[i]);
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if (ret) {
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scpsys_clk_disable(clk, i);
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break;
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}
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}
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return ret;
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}
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static int scpsys_sram_enable(struct scp_domain *scpd, void __iomem *ctl_addr)
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{
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u32 val;
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u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
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int tmp;
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val = readl(ctl_addr);
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val &= ~scpd->data->sram_pdn_bits;
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writel(val, ctl_addr);
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/* Either wait until SRAM_PDN_ACK all 0 or have a force wait */
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if (MTK_SCPD_CAPS(scpd, MTK_SCPD_FWAIT_SRAM)) {
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/*
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* Currently, MTK_SCPD_FWAIT_SRAM is necessary only for
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* MT7622_POWER_DOMAIN_WB and thus just a trivial setup
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* is applied here.
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*/
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usleep_range(12000, 12100);
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} else {
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/* Either wait until SRAM_PDN_ACK all 1 or 0 */
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int ret = readl_poll_timeout(ctl_addr, tmp,
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(tmp & pdn_ack) == 0,
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MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
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if (ret < 0)
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return ret;
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}
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return 0;
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}
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static int scpsys_sram_disable(struct scp_domain *scpd, void __iomem *ctl_addr)
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{
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u32 val;
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u32 pdn_ack = scpd->data->sram_pdn_ack_bits;
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int tmp;
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val = readl(ctl_addr);
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val |= scpd->data->sram_pdn_bits;
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writel(val, ctl_addr);
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/* Either wait until SRAM_PDN_ACK all 1 or 0 */
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return readl_poll_timeout(ctl_addr, tmp,
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(tmp & pdn_ack) == pdn_ack,
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MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
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}
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static int scpsys_bus_protect_enable(struct scp_domain *scpd)
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{
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struct scp *scp = scpd->scp;
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if (!scpd->data->bus_prot_mask)
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return 0;
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return mtk_infracfg_set_bus_protection(scp->infracfg,
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scpd->data->bus_prot_mask,
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scp->bus_prot_reg_update);
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}
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static int scpsys_bus_protect_disable(struct scp_domain *scpd)
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{
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struct scp *scp = scpd->scp;
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if (!scpd->data->bus_prot_mask)
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return 0;
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return mtk_infracfg_clear_bus_protection(scp->infracfg,
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scpd->data->bus_prot_mask,
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scp->bus_prot_reg_update);
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}
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static int scpsys_power_on(struct generic_pm_domain *genpd)
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{
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struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
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struct scp *scp = scpd->scp;
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void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
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u32 val;
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int ret, tmp;
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ret = scpsys_regulator_enable(scpd);
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if (ret < 0)
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return ret;
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ret = scpsys_clk_enable(scpd->clk, MAX_CLKS);
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if (ret)
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goto err_clk;
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/* subsys power on */
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val = readl(ctl_addr);
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val |= PWR_ON_BIT;
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writel(val, ctl_addr);
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val |= PWR_ON_2ND_BIT;
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writel(val, ctl_addr);
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/* wait until PWR_ACK = 1 */
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ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp > 0,
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MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
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if (ret < 0)
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goto err_pwr_ack;
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val &= ~PWR_CLK_DIS_BIT;
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writel(val, ctl_addr);
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val &= ~PWR_ISO_BIT;
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writel(val, ctl_addr);
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val |= PWR_RST_B_BIT;
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writel(val, ctl_addr);
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ret = scpsys_sram_enable(scpd, ctl_addr);
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if (ret < 0)
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goto err_pwr_ack;
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ret = scpsys_bus_protect_disable(scpd);
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if (ret < 0)
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goto err_pwr_ack;
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return 0;
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err_pwr_ack:
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scpsys_clk_disable(scpd->clk, MAX_CLKS);
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err_clk:
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scpsys_regulator_disable(scpd);
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dev_err(scp->dev, "Failed to power on domain %s\n", genpd->name);
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return ret;
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}
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static int scpsys_power_off(struct generic_pm_domain *genpd)
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{
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struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
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struct scp *scp = scpd->scp;
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void __iomem *ctl_addr = scp->base + scpd->data->ctl_offs;
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u32 val;
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int ret, tmp;
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ret = scpsys_bus_protect_enable(scpd);
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if (ret < 0)
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goto out;
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ret = scpsys_sram_disable(scpd, ctl_addr);
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if (ret < 0)
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goto out;
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/* subsys power off */
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val = readl(ctl_addr);
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val |= PWR_ISO_BIT;
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writel(val, ctl_addr);
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val &= ~PWR_RST_B_BIT;
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writel(val, ctl_addr);
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val |= PWR_CLK_DIS_BIT;
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writel(val, ctl_addr);
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val &= ~PWR_ON_BIT;
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writel(val, ctl_addr);
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val &= ~PWR_ON_2ND_BIT;
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writel(val, ctl_addr);
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/* wait until PWR_ACK = 0 */
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ret = readx_poll_timeout(scpsys_domain_is_on, scpd, tmp, tmp == 0,
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MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
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if (ret < 0)
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goto out;
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scpsys_clk_disable(scpd->clk, MAX_CLKS);
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ret = scpsys_regulator_disable(scpd);
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if (ret < 0)
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goto out;
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return 0;
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out:
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dev_err(scp->dev, "Failed to power off domain %s\n", genpd->name);
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return ret;
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}
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static void init_clks(struct platform_device *pdev, struct clk **clk)
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{
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int i;
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for (i = CLK_NONE + 1; i < CLK_MAX; i++)
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clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
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}
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static struct scp *init_scp(struct platform_device *pdev,
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const struct scp_domain_data *scp_domain_data, int num,
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const struct scp_ctrl_reg *scp_ctrl_reg,
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bool bus_prot_reg_update)
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{
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struct genpd_onecell_data *pd_data;
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struct resource *res;
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int i, j;
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struct scp *scp;
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struct clk *clk[CLK_MAX];
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scp = devm_kzalloc(&pdev->dev, sizeof(*scp), GFP_KERNEL);
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if (!scp)
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return ERR_PTR(-ENOMEM);
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scp->ctrl_reg.pwr_sta_offs = scp_ctrl_reg->pwr_sta_offs;
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scp->ctrl_reg.pwr_sta2nd_offs = scp_ctrl_reg->pwr_sta2nd_offs;
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scp->bus_prot_reg_update = bus_prot_reg_update;
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scp->dev = &pdev->dev;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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scp->base = devm_ioremap_resource(&pdev->dev, res);
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if (IS_ERR(scp->base))
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return ERR_CAST(scp->base);
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scp->domains = devm_kcalloc(&pdev->dev,
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num, sizeof(*scp->domains), GFP_KERNEL);
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if (!scp->domains)
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return ERR_PTR(-ENOMEM);
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pd_data = &scp->pd_data;
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pd_data->domains = devm_kcalloc(&pdev->dev,
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num, sizeof(*pd_data->domains), GFP_KERNEL);
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if (!pd_data->domains)
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return ERR_PTR(-ENOMEM);
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scp->infracfg = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
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"infracfg");
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if (IS_ERR(scp->infracfg)) {
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dev_err(&pdev->dev, "Cannot find infracfg controller: %ld\n",
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PTR_ERR(scp->infracfg));
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return ERR_CAST(scp->infracfg);
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}
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for (i = 0; i < num; i++) {
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struct scp_domain *scpd = &scp->domains[i];
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const struct scp_domain_data *data = &scp_domain_data[i];
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scpd->supply = devm_regulator_get_optional(&pdev->dev, data->name);
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if (IS_ERR(scpd->supply)) {
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if (PTR_ERR(scpd->supply) == -ENODEV)
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scpd->supply = NULL;
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else
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return ERR_CAST(scpd->supply);
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}
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}
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pd_data->num_domains = num;
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init_clks(pdev, clk);
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for (i = 0; i < num; i++) {
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struct scp_domain *scpd = &scp->domains[i];
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struct generic_pm_domain *genpd = &scpd->genpd;
|
|
const struct scp_domain_data *data = &scp_domain_data[i];
|
|
|
|
pd_data->domains[i] = genpd;
|
|
scpd->scp = scp;
|
|
|
|
scpd->data = data;
|
|
|
|
for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
|
|
struct clk *c = clk[data->clk_id[j]];
|
|
|
|
if (IS_ERR(c)) {
|
|
dev_err(&pdev->dev, "%s: clk unavailable\n",
|
|
data->name);
|
|
return ERR_CAST(c);
|
|
}
|
|
|
|
scpd->clk[j] = c;
|
|
}
|
|
|
|
genpd->name = data->name;
|
|
genpd->power_off = scpsys_power_off;
|
|
genpd->power_on = scpsys_power_on;
|
|
if (MTK_SCPD_CAPS(scpd, MTK_SCPD_ACTIVE_WAKEUP))
|
|
genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
|
|
}
|
|
|
|
return scp;
|
|
}
|
|
|
|
static void mtk_register_power_domains(struct platform_device *pdev,
|
|
struct scp *scp, int num)
|
|
{
|
|
struct genpd_onecell_data *pd_data;
|
|
int i, ret;
|
|
|
|
for (i = 0; i < num; i++) {
|
|
struct scp_domain *scpd = &scp->domains[i];
|
|
struct generic_pm_domain *genpd = &scpd->genpd;
|
|
|
|
/*
|
|
* Initially turn on all domains to make the domains usable
|
|
* with !CONFIG_PM and to get the hardware in sync with the
|
|
* software. The unused domains will be switched off during
|
|
* late_init time.
|
|
*/
|
|
genpd->power_on(genpd);
|
|
|
|
pm_genpd_init(genpd, NULL, false);
|
|
}
|
|
|
|
/*
|
|
* We are not allowed to fail here since there is no way to unregister
|
|
* a power domain. Once registered above we have to keep the domains
|
|
* valid.
|
|
*/
|
|
|
|
pd_data = &scp->pd_data;
|
|
|
|
ret = of_genpd_add_provider_onecell(pdev->dev.of_node, pd_data);
|
|
if (ret)
|
|
dev_err(&pdev->dev, "Failed to add OF provider: %d\n", ret);
|
|
}
|
|
|
|
/*
|
|
* MT2701 power domain support
|
|
*/
|
|
|
|
static const struct scp_domain_data scp_domain_data_mt2701[] = {
|
|
[MT2701_POWER_DOMAIN_CONN] = {
|
|
.name = "conn",
|
|
.sta_mask = PWR_STATUS_CONN,
|
|
.ctl_offs = SPM_CONN_PWR_CON,
|
|
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
|
|
MT2701_TOP_AXI_PROT_EN_CONN_S,
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_DISP] = {
|
|
.name = "disp",
|
|
.sta_mask = PWR_STATUS_DISP,
|
|
.ctl_offs = SPM_DIS_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.clk_id = {CLK_MM},
|
|
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_MM_M0,
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_MFG] = {
|
|
.name = "mfg",
|
|
.sta_mask = PWR_STATUS_MFG,
|
|
.ctl_offs = SPM_MFG_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_MFG},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_VDEC] = {
|
|
.name = "vdec",
|
|
.sta_mask = PWR_STATUS_VDEC,
|
|
.ctl_offs = SPM_VDE_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_MM},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_ISP] = {
|
|
.name = "isp",
|
|
.sta_mask = PWR_STATUS_ISP,
|
|
.ctl_offs = SPM_ISP_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(13, 12),
|
|
.clk_id = {CLK_MM},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_BDP] = {
|
|
.name = "bdp",
|
|
.sta_mask = PWR_STATUS_BDP,
|
|
.ctl_offs = SPM_BDP_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_ETH] = {
|
|
.name = "eth",
|
|
.sta_mask = PWR_STATUS_ETH,
|
|
.ctl_offs = SPM_ETH_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_ETHIF},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_HIF] = {
|
|
.name = "hif",
|
|
.sta_mask = PWR_STATUS_HIF,
|
|
.ctl_offs = SPM_HIF_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_ETHIF},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2701_POWER_DOMAIN_IFR_MSC] = {
|
|
.name = "ifr_msc",
|
|
.sta_mask = PWR_STATUS_IFR_MSC,
|
|
.ctl_offs = SPM_IFR_MSC_PWR_CON,
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* MT2712 power domain support
|
|
*/
|
|
static const struct scp_domain_data scp_domain_data_mt2712[] = {
|
|
[MT2712_POWER_DOMAIN_MM] = {
|
|
.name = "mm",
|
|
.sta_mask = PWR_STATUS_DISP,
|
|
.ctl_offs = SPM_DIS_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_MM},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_VDEC] = {
|
|
.name = "vdec",
|
|
.sta_mask = PWR_STATUS_VDEC,
|
|
.ctl_offs = SPM_VDE_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_MM, CLK_VDEC},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_VENC] = {
|
|
.name = "venc",
|
|
.sta_mask = PWR_STATUS_VENC,
|
|
.ctl_offs = SPM_VEN_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_MM, CLK_VENC, CLK_JPGDEC},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_ISP] = {
|
|
.name = "isp",
|
|
.sta_mask = PWR_STATUS_ISP,
|
|
.ctl_offs = SPM_ISP_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(13, 12),
|
|
.clk_id = {CLK_MM},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_AUDIO] = {
|
|
.name = "audio",
|
|
.sta_mask = PWR_STATUS_AUDIO,
|
|
.ctl_offs = SPM_AUDIO_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_AUDIO},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_USB] = {
|
|
.name = "usb",
|
|
.sta_mask = PWR_STATUS_USB,
|
|
.ctl_offs = SPM_USB_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(10, 8),
|
|
.sram_pdn_ack_bits = GENMASK(14, 12),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_USB2] = {
|
|
.name = "usb2",
|
|
.sta_mask = PWR_STATUS_USB2,
|
|
.ctl_offs = SPM_USB2_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(10, 8),
|
|
.sram_pdn_ack_bits = GENMASK(14, 12),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_MFG] = {
|
|
.name = "mfg",
|
|
.sta_mask = PWR_STATUS_MFG,
|
|
.ctl_offs = SPM_MFG_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(16, 16),
|
|
.clk_id = {CLK_MFG},
|
|
.bus_prot_mask = BIT(14) | BIT(21) | BIT(23),
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_MFG_SC1] = {
|
|
.name = "mfg_sc1",
|
|
.sta_mask = BIT(22),
|
|
.ctl_offs = 0x02c0,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(16, 16),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_MFG_SC2] = {
|
|
.name = "mfg_sc2",
|
|
.sta_mask = BIT(23),
|
|
.ctl_offs = 0x02c4,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(16, 16),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT2712_POWER_DOMAIN_MFG_SC3] = {
|
|
.name = "mfg_sc3",
|
|
.sta_mask = BIT(30),
|
|
.ctl_offs = 0x01f8,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(16, 16),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
};
|
|
|
|
static const struct scp_subdomain scp_subdomain_mt2712[] = {
|
|
{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VDEC},
|
|
{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_VENC},
|
|
{MT2712_POWER_DOMAIN_MM, MT2712_POWER_DOMAIN_ISP},
|
|
{MT2712_POWER_DOMAIN_MFG, MT2712_POWER_DOMAIN_MFG_SC1},
|
|
{MT2712_POWER_DOMAIN_MFG_SC1, MT2712_POWER_DOMAIN_MFG_SC2},
|
|
{MT2712_POWER_DOMAIN_MFG_SC2, MT2712_POWER_DOMAIN_MFG_SC3},
|
|
};
|
|
|
|
/*
|
|
* MT6797 power domain support
|
|
*/
|
|
|
|
static const struct scp_domain_data scp_domain_data_mt6797[] = {
|
|
[MT6797_POWER_DOMAIN_VDEC] = {
|
|
.name = "vdec",
|
|
.sta_mask = BIT(7),
|
|
.ctl_offs = 0x300,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_VDEC},
|
|
},
|
|
[MT6797_POWER_DOMAIN_VENC] = {
|
|
.name = "venc",
|
|
.sta_mask = BIT(21),
|
|
.ctl_offs = 0x304,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
[MT6797_POWER_DOMAIN_ISP] = {
|
|
.name = "isp",
|
|
.sta_mask = BIT(5),
|
|
.ctl_offs = 0x308,
|
|
.sram_pdn_bits = GENMASK(9, 8),
|
|
.sram_pdn_ack_bits = GENMASK(13, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
[MT6797_POWER_DOMAIN_MM] = {
|
|
.name = "mm",
|
|
.sta_mask = BIT(3),
|
|
.ctl_offs = 0x30C,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_MM},
|
|
.bus_prot_mask = (BIT(1) | BIT(2)),
|
|
},
|
|
[MT6797_POWER_DOMAIN_AUDIO] = {
|
|
.name = "audio",
|
|
.sta_mask = BIT(24),
|
|
.ctl_offs = 0x314,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
[MT6797_POWER_DOMAIN_MFG_ASYNC] = {
|
|
.name = "mfg_async",
|
|
.sta_mask = BIT(13),
|
|
.ctl_offs = 0x334,
|
|
.sram_pdn_bits = 0,
|
|
.sram_pdn_ack_bits = 0,
|
|
.clk_id = {CLK_MFG},
|
|
},
|
|
[MT6797_POWER_DOMAIN_MJC] = {
|
|
.name = "mjc",
|
|
.sta_mask = BIT(20),
|
|
.ctl_offs = 0x310,
|
|
.sram_pdn_bits = GENMASK(8, 8),
|
|
.sram_pdn_ack_bits = GENMASK(12, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
};
|
|
|
|
#define SPM_PWR_STATUS_MT6797 0x0180
|
|
#define SPM_PWR_STATUS_2ND_MT6797 0x0184
|
|
|
|
static const struct scp_subdomain scp_subdomain_mt6797[] = {
|
|
{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_VDEC},
|
|
{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_ISP},
|
|
{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_VENC},
|
|
{MT6797_POWER_DOMAIN_MM, MT6797_POWER_DOMAIN_MJC},
|
|
};
|
|
|
|
/*
|
|
* 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,
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[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,
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[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,
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[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,
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP | MTK_SCPD_FWAIT_SRAM,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* MT7623A power domain support
|
|
*/
|
|
|
|
static const struct scp_domain_data scp_domain_data_mt7623a[] = {
|
|
[MT7623A_POWER_DOMAIN_CONN] = {
|
|
.name = "conn",
|
|
.sta_mask = PWR_STATUS_CONN,
|
|
.ctl_offs = SPM_CONN_PWR_CON,
|
|
.bus_prot_mask = MT2701_TOP_AXI_PROT_EN_CONN_M |
|
|
MT2701_TOP_AXI_PROT_EN_CONN_S,
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT7623A_POWER_DOMAIN_ETH] = {
|
|
.name = "eth",
|
|
.sta_mask = PWR_STATUS_ETH,
|
|
.ctl_offs = SPM_ETH_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_ETHIF},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT7623A_POWER_DOMAIN_HIF] = {
|
|
.name = "hif",
|
|
.sta_mask = PWR_STATUS_HIF,
|
|
.ctl_offs = SPM_HIF_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_ETHIF},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT7623A_POWER_DOMAIN_IFR_MSC] = {
|
|
.name = "ifr_msc",
|
|
.sta_mask = PWR_STATUS_IFR_MSC,
|
|
.ctl_offs = SPM_IFR_MSC_PWR_CON,
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
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|
};
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|
|
|
/*
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|
* MT8173 power domain support
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|
*/
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|
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static const struct scp_domain_data scp_domain_data_mt8173[] = {
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[MT8173_POWER_DOMAIN_VDEC] = {
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.name = "vdec",
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.sta_mask = PWR_STATUS_VDEC,
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.ctl_offs = SPM_VDE_PWR_CON,
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.sram_pdn_bits = GENMASK(11, 8),
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.sram_pdn_ack_bits = GENMASK(12, 12),
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.clk_id = {CLK_MM},
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|
},
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[MT8173_POWER_DOMAIN_VENC] = {
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.name = "venc",
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.sta_mask = PWR_STATUS_VENC,
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.ctl_offs = SPM_VEN_PWR_CON,
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.sram_pdn_bits = GENMASK(11, 8),
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.sram_pdn_ack_bits = GENMASK(15, 12),
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.clk_id = {CLK_MM, CLK_VENC},
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|
},
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[MT8173_POWER_DOMAIN_ISP] = {
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.name = "isp",
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.sta_mask = PWR_STATUS_ISP,
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.ctl_offs = SPM_ISP_PWR_CON,
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.sram_pdn_bits = GENMASK(11, 8),
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.sram_pdn_ack_bits = GENMASK(13, 12),
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.clk_id = {CLK_MM},
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|
},
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|
[MT8173_POWER_DOMAIN_MM] = {
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.name = "mm",
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|
.sta_mask = PWR_STATUS_DISP,
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.ctl_offs = SPM_DIS_PWR_CON,
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.sram_pdn_bits = GENMASK(11, 8),
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.sram_pdn_ack_bits = GENMASK(12, 12),
|
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.clk_id = {CLK_MM},
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|
.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 |
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MT8173_TOP_AXI_PROT_EN_MM_M1,
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|
},
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[MT8173_POWER_DOMAIN_VENC_LT] = {
|
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.name = "venc_lt",
|
|
.sta_mask = PWR_STATUS_VENC_LT,
|
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.ctl_offs = SPM_VEN2_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_MM, CLK_VENC_LT},
|
|
},
|
|
[MT8173_POWER_DOMAIN_AUDIO] = {
|
|
.name = "audio",
|
|
.sta_mask = PWR_STATUS_AUDIO,
|
|
.ctl_offs = SPM_AUDIO_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
[MT8173_POWER_DOMAIN_USB] = {
|
|
.name = "usb",
|
|
.sta_mask = PWR_STATUS_USB,
|
|
.ctl_offs = SPM_USB_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(15, 12),
|
|
.clk_id = {CLK_NONE},
|
|
.caps = MTK_SCPD_ACTIVE_WAKEUP,
|
|
},
|
|
[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
|
|
.name = "mfg_async",
|
|
.sta_mask = PWR_STATUS_MFG_ASYNC,
|
|
.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = 0,
|
|
.clk_id = {CLK_MFG},
|
|
},
|
|
[MT8173_POWER_DOMAIN_MFG_2D] = {
|
|
.name = "mfg_2d",
|
|
.sta_mask = PWR_STATUS_MFG_2D,
|
|
.ctl_offs = SPM_MFG_2D_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(11, 8),
|
|
.sram_pdn_ack_bits = GENMASK(13, 12),
|
|
.clk_id = {CLK_NONE},
|
|
},
|
|
[MT8173_POWER_DOMAIN_MFG] = {
|
|
.name = "mfg",
|
|
.sta_mask = PWR_STATUS_MFG,
|
|
.ctl_offs = SPM_MFG_PWR_CON,
|
|
.sram_pdn_bits = GENMASK(13, 8),
|
|
.sram_pdn_ack_bits = GENMASK(21, 16),
|
|
.clk_id = {CLK_NONE},
|
|
.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S |
|
|
MT8173_TOP_AXI_PROT_EN_MFG_M0 |
|
|
MT8173_TOP_AXI_PROT_EN_MFG_M1 |
|
|
MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT,
|
|
},
|
|
};
|
|
|
|
static const struct scp_subdomain scp_subdomain_mt8173[] = {
|
|
{MT8173_POWER_DOMAIN_MFG_ASYNC, MT8173_POWER_DOMAIN_MFG_2D},
|
|
{MT8173_POWER_DOMAIN_MFG_2D, MT8173_POWER_DOMAIN_MFG},
|
|
};
|
|
|
|
static const struct scp_soc_data mt2701_data = {
|
|
.domains = scp_domain_data_mt2701,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt2701),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
|
|
},
|
|
.bus_prot_reg_update = true,
|
|
};
|
|
|
|
static const struct scp_soc_data mt2712_data = {
|
|
.domains = scp_domain_data_mt2712,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt2712),
|
|
.subdomains = scp_subdomain_mt2712,
|
|
.num_subdomains = ARRAY_SIZE(scp_subdomain_mt2712),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
|
|
},
|
|
.bus_prot_reg_update = false,
|
|
};
|
|
|
|
static const struct scp_soc_data mt6797_data = {
|
|
.domains = scp_domain_data_mt6797,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt6797),
|
|
.subdomains = scp_subdomain_mt6797,
|
|
.num_subdomains = ARRAY_SIZE(scp_subdomain_mt6797),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS_MT6797,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND_MT6797
|
|
},
|
|
.bus_prot_reg_update = true,
|
|
};
|
|
|
|
static const struct scp_soc_data mt7622_data = {
|
|
.domains = scp_domain_data_mt7622,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt7622),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
|
|
},
|
|
.bus_prot_reg_update = true,
|
|
};
|
|
|
|
static const struct scp_soc_data mt7623a_data = {
|
|
.domains = scp_domain_data_mt7623a,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt7623a),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
|
|
},
|
|
.bus_prot_reg_update = true,
|
|
};
|
|
|
|
static const struct scp_soc_data mt8173_data = {
|
|
.domains = scp_domain_data_mt8173,
|
|
.num_domains = ARRAY_SIZE(scp_domain_data_mt8173),
|
|
.subdomains = scp_subdomain_mt8173,
|
|
.num_subdomains = ARRAY_SIZE(scp_subdomain_mt8173),
|
|
.regs = {
|
|
.pwr_sta_offs = SPM_PWR_STATUS,
|
|
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
|
|
},
|
|
.bus_prot_reg_update = true,
|
|
};
|
|
|
|
/*
|
|
* scpsys driver init
|
|
*/
|
|
|
|
static const struct of_device_id of_scpsys_match_tbl[] = {
|
|
{
|
|
.compatible = "mediatek,mt2701-scpsys",
|
|
.data = &mt2701_data,
|
|
}, {
|
|
.compatible = "mediatek,mt2712-scpsys",
|
|
.data = &mt2712_data,
|
|
}, {
|
|
.compatible = "mediatek,mt6797-scpsys",
|
|
.data = &mt6797_data,
|
|
}, {
|
|
.compatible = "mediatek,mt7622-scpsys",
|
|
.data = &mt7622_data,
|
|
}, {
|
|
.compatible = "mediatek,mt7623a-scpsys",
|
|
.data = &mt7623a_data,
|
|
}, {
|
|
.compatible = "mediatek,mt8173-scpsys",
|
|
.data = &mt8173_data,
|
|
}, {
|
|
/* sentinel */
|
|
}
|
|
};
|
|
|
|
static int scpsys_probe(struct platform_device *pdev)
|
|
{
|
|
const struct scp_subdomain *sd;
|
|
const struct scp_soc_data *soc;
|
|
struct scp *scp;
|
|
struct genpd_onecell_data *pd_data;
|
|
int i, ret;
|
|
|
|
soc = of_device_get_match_data(&pdev->dev);
|
|
|
|
scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs,
|
|
soc->bus_prot_reg_update);
|
|
if (IS_ERR(scp))
|
|
return PTR_ERR(scp);
|
|
|
|
mtk_register_power_domains(pdev, scp, soc->num_domains);
|
|
|
|
pd_data = &scp->pd_data;
|
|
|
|
for (i = 0, sd = soc->subdomains; i < soc->num_subdomains; i++, sd++) {
|
|
ret = pm_genpd_add_subdomain(pd_data->domains[sd->origin],
|
|
pd_data->domains[sd->subdomain]);
|
|
if (ret && IS_ENABLED(CONFIG_PM))
|
|
dev_err(&pdev->dev, "Failed to add subdomain: %d\n",
|
|
ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver scpsys_drv = {
|
|
.probe = scpsys_probe,
|
|
.driver = {
|
|
.name = "mtk-scpsys",
|
|
.suppress_bind_attrs = true,
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = of_match_ptr(of_scpsys_match_tbl),
|
|
},
|
|
};
|
|
builtin_platform_driver(scpsys_drv);
|