[PATCH V2 10/11] soc: mediatek: PMIC wrap: add mt6323 slave support

[John Crispin]

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 <blo...@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |   46 ++++++++++++++++++++++++++++++++--
 1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c 
b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 21d8e5a..85c4314 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -97,6 +97,31 @@ enum dew_regs {
        PWRAP_MT8173_DEW_CIPHER_IV3,
        PWRAP_MT8173_DEW_CIPHER_IV4,
        PWRAP_MT8173_DEW_CIPHER_IV5,
+
+       /* MT6323 only regs */
+       PWRAP_DEW_CRC_SWRST,
+       PWRAP_DEW_CIPHER_EN,
+       PWRAP_DEW_RDDMY_NO,
+       PWRAP_DEW_RDATA_DLY_SEL,
+};
+
+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_SWRST] =         0x0190,
+       [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,
+       [PWRAP_DEW_RDATA_DLY_SEL] =     0x01a6,
 };
 
 static const u32 mt6397_regs[] = {
@@ -381,6 +406,7 @@ static int mt8135_regs[] = {
 };
 
 enum pmic_type {
+       PMIC_MT6323,
        PMIC_MT6397,
 };
 
@@ -676,8 +702,16 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
        pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0);
        pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1);
        pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2);
-       pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
-       pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);
+
+       switch (wrp->slave->type) {
+       case PMIC_MT6397:
+               pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
+               pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);
+               break;
+       case PMIC_MT6323:
+               pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_EN, 0x1);
+               break;
+       }
 
        /* wait for cipher data ready@AP */
        ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready);
@@ -870,6 +904,11 @@ 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,
@@ -877,6 +916,9 @@ 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,
        }, {
-- 
1.7.10.4