diff options
author | John Crispin <blogic@openwrt.org> | 2016-02-19 08:44:13 (GMT) |
---|---|---|
committer | Matthias Brugger <matthias.bgg@gmail.com> | 2016-04-20 11:03:04 (GMT) |
commit | b28d78cd1812e4c65063ff6db9c7f4ab213e75d8 (patch) | |
tree | ddc2ce452aabd5a10d220b181bcf92f94c44b085 /drivers/soc/mediatek | |
parent | 25269cefb691d324a3fe2be4d2a7b81f6a733996 (diff) | |
download | linux-b28d78cd1812e4c65063ff6db9c7f4ab213e75d8.tar.xz |
soc: mediatek: PMIC wrap: add a slave specific struct
This patch adds a new struct pwrap_slv_type that we use to store the slave
specific data. The patch adds 2 new helper functions to access the dew
registers. The slave type is looked up via the wrappers child node.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc/mediatek')
-rw-r--r-- | drivers/soc/mediatek/mtk-pmic-wrap.c | 159 |
1 files changed, 112 insertions, 47 deletions
diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c index a2bacda..bcc841e 100644 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -69,33 +69,54 @@ PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE | \ PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE) -/* macro for slave device wrapper registers */ -#define PWRAP_DEW_BASE 0xbc00 -#define PWRAP_DEW_EVENT_OUT_EN (PWRAP_DEW_BASE + 0x0) -#define PWRAP_DEW_DIO_EN (PWRAP_DEW_BASE + 0x2) -#define PWRAP_DEW_EVENT_SRC_EN (PWRAP_DEW_BASE + 0x4) -#define PWRAP_DEW_EVENT_SRC (PWRAP_DEW_BASE + 0x6) -#define PWRAP_DEW_EVENT_FLAG (PWRAP_DEW_BASE + 0x8) -#define PWRAP_DEW_READ_TEST (PWRAP_DEW_BASE + 0xa) -#define PWRAP_DEW_WRITE_TEST (PWRAP_DEW_BASE + 0xc) -#define PWRAP_DEW_CRC_EN (PWRAP_DEW_BASE + 0xe) -#define PWRAP_DEW_CRC_VAL (PWRAP_DEW_BASE + 0x10) -#define PWRAP_DEW_MON_GRP_SEL (PWRAP_DEW_BASE + 0x12) -#define PWRAP_DEW_MON_FLAG_SEL (PWRAP_DEW_BASE + 0x14) -#define PWRAP_DEW_EVENT_TEST (PWRAP_DEW_BASE + 0x16) -#define PWRAP_DEW_CIPHER_KEY_SEL (PWRAP_DEW_BASE + 0x18) -#define PWRAP_DEW_CIPHER_IV_SEL (PWRAP_DEW_BASE + 0x1a) -#define PWRAP_DEW_CIPHER_LOAD (PWRAP_DEW_BASE + 0x1c) -#define PWRAP_DEW_CIPHER_START (PWRAP_DEW_BASE + 0x1e) -#define PWRAP_DEW_CIPHER_RDY (PWRAP_DEW_BASE + 0x20) -#define PWRAP_DEW_CIPHER_MODE (PWRAP_DEW_BASE + 0x22) -#define PWRAP_DEW_CIPHER_SWRST (PWRAP_DEW_BASE + 0x24) -#define PWRAP_MT8173_DEW_CIPHER_IV0 (PWRAP_DEW_BASE + 0x26) -#define PWRAP_MT8173_DEW_CIPHER_IV1 (PWRAP_DEW_BASE + 0x28) -#define PWRAP_MT8173_DEW_CIPHER_IV2 (PWRAP_DEW_BASE + 0x2a) -#define PWRAP_MT8173_DEW_CIPHER_IV3 (PWRAP_DEW_BASE + 0x2c) -#define PWRAP_MT8173_DEW_CIPHER_IV4 (PWRAP_DEW_BASE + 0x2e) -#define PWRAP_MT8173_DEW_CIPHER_IV5 (PWRAP_DEW_BASE + 0x30) +/* defines for slave device wrapper registers */ +enum dew_regs { + PWRAP_DEW_BASE, + PWRAP_DEW_DIO_EN, + PWRAP_DEW_READ_TEST, + PWRAP_DEW_WRITE_TEST, + PWRAP_DEW_CRC_EN, + PWRAP_DEW_CRC_VAL, + PWRAP_DEW_MON_GRP_SEL, + PWRAP_DEW_CIPHER_KEY_SEL, + PWRAP_DEW_CIPHER_IV_SEL, + PWRAP_DEW_CIPHER_RDY, + PWRAP_DEW_CIPHER_MODE, + PWRAP_DEW_CIPHER_SWRST, + + /* MT6397 only regs */ + PWRAP_DEW_EVENT_OUT_EN, + PWRAP_DEW_EVENT_SRC_EN, + PWRAP_DEW_EVENT_SRC, + PWRAP_DEW_EVENT_FLAG, + PWRAP_DEW_MON_FLAG_SEL, + PWRAP_DEW_EVENT_TEST, + PWRAP_DEW_CIPHER_LOAD, + PWRAP_DEW_CIPHER_START, +}; + +static const u32 mt6397_regs[] = { + [PWRAP_DEW_BASE] = 0xbc00, + [PWRAP_DEW_EVENT_OUT_EN] = 0xbc00, + [PWRAP_DEW_DIO_EN] = 0xbc02, + [PWRAP_DEW_EVENT_SRC_EN] = 0xbc04, + [PWRAP_DEW_EVENT_SRC] = 0xbc06, + [PWRAP_DEW_EVENT_FLAG] = 0xbc08, + [PWRAP_DEW_READ_TEST] = 0xbc0a, + [PWRAP_DEW_WRITE_TEST] = 0xbc0c, + [PWRAP_DEW_CRC_EN] = 0xbc0e, + [PWRAP_DEW_CRC_VAL] = 0xbc10, + [PWRAP_DEW_MON_GRP_SEL] = 0xbc12, + [PWRAP_DEW_MON_FLAG_SEL] = 0xbc14, + [PWRAP_DEW_EVENT_TEST] = 0xbc16, + [PWRAP_DEW_CIPHER_KEY_SEL] = 0xbc18, + [PWRAP_DEW_CIPHER_IV_SEL] = 0xbc1a, + [PWRAP_DEW_CIPHER_LOAD] = 0xbc1c, + [PWRAP_DEW_CIPHER_START] = 0xbc1e, + [PWRAP_DEW_CIPHER_RDY] = 0xbc20, + [PWRAP_DEW_CIPHER_MODE] = 0xbc22, + [PWRAP_DEW_CIPHER_SWRST] = 0xbc24, +}; enum pwrap_regs { PWRAP_MUX_SEL, @@ -349,16 +370,26 @@ static int mt8135_regs[] = { [PWRAP_DCM_DBC_PRD] = 0x160, }; +enum pmic_type { + PMIC_MT6397, +}; + enum pwrap_type { PWRAP_MT8135, PWRAP_MT8173, }; +struct pwrap_slv_type { + const u32 *dew_regs; + enum pmic_type type; +}; + struct pmic_wrapper { struct device *dev; void __iomem *base; struct regmap *regmap; const struct pmic_wrapper_type *master; + const struct pwrap_slv_type *slave; struct clk *clk_spi; struct clk *clk_wrap; struct reset_control *rstc; @@ -544,7 +575,8 @@ static int pwrap_init_sidly(struct pmic_wrapper *wrp) for (i = 0; i < 4; i++) { pwrap_writel(wrp, i, PWRAP_SIDLY); - pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata); + pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_READ_TEST], + &rdata); if (rdata == PWRAP_DEW_READ_TEST_VAL) { dev_dbg(wrp->dev, "[Read Test] pass, SIDLY=%x\n", i); pass |= 1 << i; @@ -593,7 +625,8 @@ static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp) u32 rdata; int ret; - ret = pwrap_read(wrp, PWRAP_DEW_CIPHER_RDY, &rdata); + ret = pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_RDY], + &rdata); if (ret) return 0; @@ -621,12 +654,12 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp) } /* Config cipher mode @PMIC */ - pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x1); - pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0); - pwrap_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1); - pwrap_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2); - pwrap_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1); - pwrap_write(wrp, PWRAP_DEW_CIPHER_START, 0x1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x0); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_KEY_SEL], 0x1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_IV_SEL], 0x2); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_LOAD], 0x1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_START], 0x1); /* wait for cipher data ready@AP */ ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready); @@ -643,7 +676,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp) } /* wait for cipher mode idle */ - pwrap_write(wrp, PWRAP_DEW_CIPHER_MODE, 0x1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_MODE], 0x1); ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle); if (ret) { dev_err(wrp->dev, "cipher mode idle fail, ret=%d\n", ret); @@ -653,9 +686,11 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp) pwrap_writel(wrp, 1, PWRAP_CIPHER_MODE); /* Write Test */ - if (pwrap_write(wrp, PWRAP_DEW_WRITE_TEST, PWRAP_DEW_WRITE_TEST_VAL) || - pwrap_read(wrp, PWRAP_DEW_WRITE_TEST, &rdata) || - (rdata != PWRAP_DEW_WRITE_TEST_VAL)) { + if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_WRITE_TEST], + PWRAP_DEW_WRITE_TEST_VAL) || + pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_WRITE_TEST], + &rdata) || + (rdata != PWRAP_DEW_WRITE_TEST_VAL)) { dev_err(wrp->dev, "rdata=0x%04X\n", rdata); return -EFAULT; } @@ -677,8 +712,10 @@ static int pwrap_mt8135_init_soc_specific(struct pmic_wrapper *wrp) writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN); /* enable PMIC event out and sources */ - if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) || - pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) { + if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_OUT_EN], + 0x1) || + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_SRC_EN], + 0xffff)) { dev_err(wrp->dev, "enable dewrap fail\n"); return -EFAULT; } @@ -689,8 +726,10 @@ static int pwrap_mt8135_init_soc_specific(struct pmic_wrapper *wrp) static int pwrap_mt8173_init_soc_specific(struct pmic_wrapper *wrp) { /* PMIC_DEWRAP enables */ - if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) || - pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) { + if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_OUT_EN], + 0x1) || + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_EVENT_SRC_EN], + 0xffff)) { dev_err(wrp->dev, "enable dewrap fail\n"); return -EFAULT; } @@ -734,7 +773,7 @@ static int pwrap_init(struct pmic_wrapper *wrp) return ret; /* Enable dual IO mode */ - pwrap_write(wrp, PWRAP_DEW_DIO_EN, 1); + pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_DIO_EN], 1); /* Check IDLE & INIT_DONE in advance */ ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle); @@ -746,7 +785,7 @@ static int pwrap_init(struct pmic_wrapper *wrp) pwrap_writel(wrp, 1, PWRAP_DIO_EN); /* Read Test */ - pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata); + pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_READ_TEST], &rdata); if (rdata != PWRAP_DEW_READ_TEST_VAL) { dev_err(wrp->dev, "Read test failed after switch to DIO mode: 0x%04x != 0x%04x\n", PWRAP_DEW_READ_TEST_VAL, rdata); @@ -759,12 +798,13 @@ static int pwrap_init(struct pmic_wrapper *wrp) return ret; /* Signature checking - using CRC */ - if (pwrap_write(wrp, PWRAP_DEW_CRC_EN, 0x1)) + if (pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_EN], 0x1)) return -EFAULT; pwrap_writel(wrp, 0x1, PWRAP_CRC_EN); pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE); - pwrap_writel(wrp, PWRAP_DEW_CRC_VAL, PWRAP_SIG_ADR); + pwrap_writel(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_VAL], + PWRAP_SIG_ADR); pwrap_writel(wrp, wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN); if (wrp->master->type == PWRAP_MT8135) @@ -818,6 +858,21 @@ static const struct regmap_config pwrap_regmap_config = { .max_register = 0xffff, }; +static const struct pwrap_slv_type pmic_mt6397 = { + .dew_regs = mt6397_regs, + .type = PMIC_MT6397, +}; + +static const struct of_device_id of_slave_match_tbl[] = { + { + .compatible = "mediatek,mt6397", + .data = &pmic_mt6397, + }, { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, of_slave_match_tbl); + static struct pmic_wrapper_type pwrap_mt8135 = { .regs = mt8135_regs, .type = PWRAP_MT8135, @@ -862,8 +917,17 @@ static int pwrap_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; const struct of_device_id *of_id = of_match_device(of_pwrap_match_tbl, &pdev->dev); + const struct of_device_id *of_slave_id = NULL; struct resource *res; + if (pdev->dev.of_node->child) + of_slave_id = of_match_node(of_slave_match_tbl, + pdev->dev.of_node->child); + if (!of_slave_id) { + dev_dbg(&pdev->dev, "slave pmic should be defined in dts\n"); + return -EINVAL; + } + wrp = devm_kzalloc(&pdev->dev, sizeof(*wrp), GFP_KERNEL); if (!wrp) return -ENOMEM; @@ -871,6 +935,7 @@ static int pwrap_probe(struct platform_device *pdev) platform_set_drvdata(pdev, wrp); wrp->master = of_id->data; + wrp->slave = of_slave_id->data; wrp->dev = &pdev->dev; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwrap"); |