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authorArnd Bergmann <arnd@arndb.de>2017-12-21 18:11:41 +0100
committerArnd Bergmann <arnd@arndb.de>2017-12-21 18:11:41 +0100
commit11c9dff045484f5945af9ca786f9d2539320c0d4 (patch)
tree12d9e60184c805e5d0cd6e067b2355492c9130a3 /drivers/soc
parenta3dc838d7aa045c5b601f88ea1eab7b788b58e64 (diff)
parentfdac5f4d4857d488fcd77308fec95b44196fdfb1 (diff)
Merge tag 'v4.15-next-soc' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/soc
Pull "arm: Updates for soc driver for v4.15-next" from Matthias Brugger: - change kconfig entry for armv7 SoCs to be more generic - add support for mt2701 scpsys driver binding documentation extend driver to allow the bus protection to overwrite the register * tag 'v4.15-next-soc' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: soc: mediatek: add MT2712 scpsys support soc: mediatek: add dependent clock jpgdec/audio for scpsys soc: mediatek: extend bus protection API dt-bindings: soc: add MT2712 power dt-bindings ARM: mediatek: use more generic prompts for SoCs with ARMv7
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/mediatek/mtk-infracfg.c26
-rw-r--r--drivers/soc/mediatek/mtk-scpsys.c140
2 files changed, 147 insertions, 19 deletions
diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index dba3055a9493..8c310de01e93 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -19,23 +19,33 @@
#define INFRA_TOPAXI_PROTECTEN 0x0220
#define INFRA_TOPAXI_PROTECTSTA1 0x0228
+#define INFRA_TOPAXI_PROTECTEN_SET 0x0260
+#define INFRA_TOPAXI_PROTECTEN_CLR 0x0264
/**
* mtk_infracfg_set_bus_protection - enable bus protection
* @regmap: The infracfg regmap
* @mask: The mask containing the protection bits to be enabled.
+ * @reg_update: The boolean flag determines to set the protection bits
+ * by regmap_update_bits with enable register(PROTECTEN) or
+ * by regmap_write with set register(PROTECTEN_SET).
*
* This function enables the bus protection bits for disabled power
* domains so that the system does not hang when some unit accesses the
* bus while in power down.
*/
-int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask)
+int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
+ bool reg_update)
{
unsigned long expired;
u32 val;
int ret;
- regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, mask);
+ if (reg_update)
+ regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask,
+ mask);
+ else
+ regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
expired = jiffies + HZ;
@@ -59,16 +69,24 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask)
* mtk_infracfg_clear_bus_protection - disable bus protection
* @regmap: The infracfg regmap
* @mask: The mask containing the protection bits to be disabled.
+ * @reg_update: The boolean flag determines to clear the protection bits
+ * by regmap_update_bits with enable register(PROTECTEN) or
+ * by regmap_write with clear register(PROTECTEN_CLR).
*
* This function disables the bus protection bits previously enabled with
* mtk_infracfg_set_bus_protection.
*/
-int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask)
+
+int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
+ bool reg_update)
{
unsigned long expired;
int ret;
- regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
+ if (reg_update)
+ regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
+ else
+ regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
expired = jiffies + HZ;
diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index e570b6af2e6f..435ce5ec648a 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -21,6 +21,7 @@
#include <linux/soc/mediatek/infracfg.h>
#include <dt-bindings/power/mt2701-power.h>
+#include <dt-bindings/power/mt2712-power.h>
#include <dt-bindings/power/mt6797-power.h>
#include <dt-bindings/power/mt7622-power.h>
#include <dt-bindings/power/mt8173-power.h>
@@ -32,7 +33,7 @@
#define SPM_DIS_PWR_CON 0x023c
#define SPM_CONN_PWR_CON 0x0280
#define SPM_VEN2_PWR_CON 0x0298
-#define SPM_AUDIO_PWR_CON 0x029c /* MT8173 */
+#define SPM_AUDIO_PWR_CON 0x029c /* MT8173, MT2712 */
#define SPM_BDP_PWR_CON 0x029c /* MT2701 */
#define SPM_ETH_PWR_CON 0x02a0
#define SPM_HIF_PWR_CON 0x02a4
@@ -40,12 +41,12 @@
#define SPM_MFG_2D_PWR_CON 0x02c0
#define SPM_MFG_ASYNC_PWR_CON 0x02c4
#define SPM_USB_PWR_CON 0x02cc
+#define SPM_USB2_PWR_CON 0x02d4 /* MT2712 */
#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
@@ -64,12 +65,13 @@
#define PWR_STATUS_ETH BIT(15)
#define PWR_STATUS_HIF BIT(16)
#define PWR_STATUS_IFR_MSC BIT(17)
+#define PWR_STATUS_USB2 BIT(19) /* MT2712 */
#define PWR_STATUS_VENC_LT BIT(20)
#define PWR_STATUS_VENC BIT(21)
-#define PWR_STATUS_MFG_2D BIT(22)
-#define PWR_STATUS_MFG_ASYNC BIT(23)
-#define PWR_STATUS_AUDIO BIT(24)
-#define PWR_STATUS_USB BIT(25)
+#define PWR_STATUS_MFG_2D BIT(22) /* MT8173 */
+#define PWR_STATUS_MFG_ASYNC BIT(23) /* MT8173 */
+#define PWR_STATUS_AUDIO BIT(24) /* MT8173, MT2712 */
+#define PWR_STATUS_USB BIT(25) /* MT8173, MT2712 */
#define PWR_STATUS_ETHSYS BIT(24) /* MT7622 */
#define PWR_STATUS_HIF0 BIT(25) /* MT7622 */
#define PWR_STATUS_HIF1 BIT(26) /* MT7622 */
@@ -84,6 +86,8 @@ enum clk_id {
CLK_ETHIF,
CLK_VDEC,
CLK_HIFSEL,
+ CLK_JPGDEC,
+ CLK_AUDIO,
CLK_MAX,
};
@@ -96,10 +100,12 @@ static const char * const clk_names[] = {
"ethif",
"vdec",
"hif_sel",
+ "jpgdec",
+ "audio",
NULL,
};
-#define MAX_CLKS 2
+#define MAX_CLKS 3
struct scp_domain_data {
const char *name;
@@ -134,6 +140,7 @@ struct scp {
void __iomem *base;
struct regmap *infracfg;
struct scp_ctrl_reg ctrl_reg;
+ bool bus_prot_reg_update;
};
struct scp_subdomain {
@@ -147,6 +154,7 @@ struct scp_soc_data {
const struct scp_subdomain *subdomains;
int num_subdomains;
const struct scp_ctrl_reg regs;
+ bool bus_prot_reg_update;
};
static int scpsys_domain_is_on(struct scp_domain *scpd)
@@ -254,7 +262,8 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
if (scpd->data->bus_prot_mask) {
ret = mtk_infracfg_clear_bus_protection(scp->infracfg,
- scpd->data->bus_prot_mask);
+ scpd->data->bus_prot_mask,
+ scp->bus_prot_reg_update);
if (ret)
goto err_pwr_ack;
}
@@ -289,7 +298,8 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
if (scpd->data->bus_prot_mask) {
ret = mtk_infracfg_set_bus_protection(scp->infracfg,
- scpd->data->bus_prot_mask);
+ scpd->data->bus_prot_mask,
+ scp->bus_prot_reg_update);
if (ret)
goto out;
}
@@ -371,7 +381,8 @@ static void init_clks(struct platform_device *pdev, struct clk **clk)
static struct scp *init_scp(struct platform_device *pdev,
const struct scp_domain_data *scp_domain_data, int num,
- const struct scp_ctrl_reg *scp_ctrl_reg)
+ const struct scp_ctrl_reg *scp_ctrl_reg,
+ bool bus_prot_reg_update)
{
struct genpd_onecell_data *pd_data;
struct resource *res;
@@ -386,6 +397,8 @@ static struct scp *init_scp(struct platform_device *pdev,
scp->ctrl_reg.pwr_sta_offs = scp_ctrl_reg->pwr_sta_offs;
scp->ctrl_reg.pwr_sta2nd_offs = scp_ctrl_reg->pwr_sta2nd_offs;
+ scp->bus_prot_reg_update = bus_prot_reg_update;
+
scp->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -581,6 +594,85 @@ static const struct scp_domain_data scp_domain_data_mt2701[] = {
};
/*
+ * 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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [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},
+ .active_wakeup = true,
+ },
+ [MT2712_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(19, 16),
+ .clk_id = {CLK_MFG},
+ .bus_prot_mask = BIT(14) | BIT(21) | BIT(23),
+ .active_wakeup = true,
+ },
+};
+
+/*
* MT6797 power domain support
*/
@@ -806,7 +898,18 @@ static const struct scp_soc_data mt2701_data = {
.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),
+ .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 = {
@@ -817,7 +920,8 @@ static const struct scp_soc_data mt6797_data = {
.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 = {
@@ -826,7 +930,8 @@ static const struct scp_soc_data mt7622_data = {
.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 = {
@@ -837,7 +942,8 @@ static const struct scp_soc_data mt8173_data = {
.regs = {
.pwr_sta_offs = SPM_PWR_STATUS,
.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND
- }
+ },
+ .bus_prot_reg_update = true,
};
/*
@@ -849,6 +955,9 @@ 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,
}, {
@@ -874,7 +983,8 @@ static int scpsys_probe(struct platform_device *pdev)
match = of_match_device(of_scpsys_match_tbl, &pdev->dev);
soc = (const struct scp_soc_data *)match->data;
- scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs);
+ scp = init_scp(pdev, soc->domains, soc->num_domains, &soc->regs,
+ soc->bus_prot_reg_update);
if (IS_ERR(scp))
return PTR_ERR(scp);

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