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>

1 files changed, 43 insertions, 0 deletions

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index bcc841ebbdc3..0e4ebb84ee7f 100644
--- 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,
         }, {