soc: mediatek: PMIC wrap: add mt6323 slave support

Add support for MT6323 slaves. This PMIC can be found on MT2701 and MT7623
EVB. The only function that we need to touch is pwrap_init_cipher().

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index bcc841e..0e4ebb8 100644 (file)
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -93,6 +93,27 @@ enum dew_regs {
        PWRAP_DEW_EVENT_TEST,
        PWRAP_DEW_CIPHER_LOAD,
        PWRAP_DEW_CIPHER_START,
+
+       /* MT6323 only regs */
+       PWRAP_DEW_CIPHER_EN,
+       PWRAP_DEW_RDDMY_NO,
+};
+
+static const u32 mt6323_regs[] = {
+       [PWRAP_DEW_BASE] =              0x0000,
+       [PWRAP_DEW_DIO_EN] =            0x018a,
+       [PWRAP_DEW_READ_TEST] =         0x018c,
+       [PWRAP_DEW_WRITE_TEST] =        0x018e,
+       [PWRAP_DEW_CRC_EN] =            0x0192,
+       [PWRAP_DEW_CRC_VAL] =           0x0194,
+       [PWRAP_DEW_MON_GRP_SEL] =       0x0196,
+       [PWRAP_DEW_CIPHER_KEY_SEL] =    0x0198,
+       [PWRAP_DEW_CIPHER_IV_SEL] =     0x019a,
+       [PWRAP_DEW_CIPHER_EN] =         0x019c,
+       [PWRAP_DEW_CIPHER_RDY] =        0x019e,
+       [PWRAP_DEW_CIPHER_MODE] =       0x01a0,
+       [PWRAP_DEW_CIPHER_SWRST] =      0x01a2,
+       [PWRAP_DEW_RDDMY_NO] =          0x01a4,
 };
 
 static const u32 mt6397_regs[] = {
@@ -371,6 +392,7 @@ static int mt8135_regs[] = {
 };
 
 enum pmic_type {
+       PMIC_MT6323,
        PMIC_MT6397,
 };
 
@@ -661,6 +683,19 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
        pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_LOAD], 0x1);
        pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_START], 0x1);
 
+       switch (wrp->slave->type) {
+       case PMIC_MT6397:
+               pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_LOAD],
+                           0x1);
+               pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_START],
+                           0x1);
+               break;
+       case PMIC_MT6323:
+               pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_EN],
+                           0x1);
+               break;
+       }
+
        /* wait for cipher data ready@AP */
        ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready);
        if (ret) {
@@ -858,6 +893,11 @@ static const struct regmap_config pwrap_regmap_config = {
        .max_register = 0xffff,
 };
 
+static const struct pwrap_slv_type pmic_mt6323 = {
+       .dew_regs = mt6323_regs,
+       .type = PMIC_MT6323,
+};
+
 static const struct pwrap_slv_type pmic_mt6397 = {
        .dew_regs = mt6397_regs,
        .type = PMIC_MT6397,
@@ -865,6 +905,9 @@ static const struct pwrap_slv_type pmic_mt6397 = {
 
 static const struct of_device_id of_slave_match_tbl[] = {
        {
+               .compatible = "mediatek,mt6323",
+               .data = &pmic_mt6323,
+       }, {
                .compatible = "mediatek,mt6397",
                .data = &pmic_mt6397,
        }, {