diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/i2c_eeprom.c | 8 | ||||
| -rw-r--r-- | drivers/misc/k3_avs.c | 36 |
2 files changed, 44 insertions, 0 deletions
diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c index 10f0173d805..3cb38aa28ad 100644 --- a/drivers/misc/i2c_eeprom.c +++ b/drivers/misc/i2c_eeprom.c @@ -264,6 +264,13 @@ static const struct i2c_eeprom_drv_data atmel24c256_data = { .offset_len = 2, }; +static const struct i2c_eeprom_drv_data st24256e_wlp_data = { + .size = 64, + .pagesize = 64, + .addr_offset_mask = 0, + .offset_len = 2, +}; + static const struct i2c_eeprom_drv_data atmel24c512_data = { .size = 65536, .pagesize = 64, @@ -287,6 +294,7 @@ static const struct udevice_id i2c_eeprom_std_ids[] = { { .compatible = "atmel,24c128", (ulong)&atmel24c128_data }, { .compatible = "atmel,24c256", (ulong)&atmel24c256_data }, { .compatible = "atmel,24c512", (ulong)&atmel24c512_data }, + { .compatible = "st,24256e-wl", (ulong)&st24256e_wlp_data }, { } }; diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c index 99a18a109b7..0774e0a4c9e 100644 --- a/drivers/misc/k3_avs.c +++ b/drivers/misc/k3_avs.c @@ -121,6 +121,11 @@ static int k3_avs_program_voltage(struct k3_avs_privdata *priv, if (!vd->supply) return -ENODEV; + if (!volt) { + dev_err(priv->dev, "No efuse found for opp_%d\n", opp_id); + return -EINVAL; + } + vd->opp = opp_id; vd->flags |= VD_FLAG_INIT_DONE; @@ -193,6 +198,33 @@ static int match_opp(struct vd_data *vd, u32 freq) } /** + * k3_check_opp: Check for presence of opp efuse + * @dev: AVS device + * @vdd_id: voltage domain ID + * @opp_id: opp id to check if voltage is present + * + * Checks to see if an opp has voltage. k3_avs probe will populate + * voltage data if efuse is present. Returns 0 if data is valid. + */ +int k3_avs_check_opp(struct udevice *dev, int vdd_id, int opp_id) +{ + struct k3_avs_privdata *priv = dev_get_priv(dev); + struct vd_data *vd; + int volt; + + vd = get_vd(priv, vdd_id); + if (!vd) + return -EINVAL; + + volt = vd->opps[opp_id].volt; + if (volt) + return 0; + + printf("No efuse found for opp_%d\n", opp_id); + return -EINVAL; +} + +/** * k3_avs_notify_freq: Notify clock rate change towards AVS subsystem * @dev_id: Device ID for the clock to be changed * @clk_id: Clock ID for the clock to be changed @@ -501,6 +533,10 @@ static struct vd_data j721e_vd_data[] = { .dev_id = 202, /* J721E_DEV_A72SS0_CORE0 */ .clk_id = 2, /* ARM clock */ .opps = { + [AM6_OPP_LOW] = { + .volt = 0, /* voltage TBD after OPP fuse reading */ + .freq = 1000000000, + }, [AM6_OPP_NOM] = { .volt = 880000, /* TBD in DM */ .freq = 2000000000, |