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

From: John Crispin
Date: Mon Jan 25 2016 - 04:45:08 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 | 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