[PATCH V5 10/11] soc: mediatek: PMIC wrap: add mt6323 slave support

From: John Crispin
Date: Sun Feb 07 2016 - 05:44:40 EST


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@xxxxxxxxxxx>
---
drivers/soc/mediatek/mtk-pmic-wrap.c | 47 ++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 2628271..5fbdd5c 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -91,6 +91,31 @@ enum dew_regs {
PWRAP_DEW_CIPHER_RDY,
PWRAP_DEW_CIPHER_MODE,
PWRAP_DEW_CIPHER_SWRST,
+
+ /* 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[] = {
@@ -369,6 +394,7 @@ static int mt8135_regs[] = {
};

enum pmic_type {
+ PMIC_MT6323,
PMIC_MT6397,
};

@@ -659,6 +685,19 @@ 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) {
@@ -856,6 +895,11 @@ 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,
@@ -863,6 +907,9 @@ 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