2022-12-01 11:01:43

by Tomeu Vizoso

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Subject: [PATCH v5 3/7] soc: amlogic: meson-pwrc: Add NNA power domain for A311D

Based on power initialization sequence in downstream driver.

Signed-off-by: Tomeu Vizoso <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
---
drivers/soc/amlogic/meson-ee-pwrc.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/drivers/soc/amlogic/meson-ee-pwrc.c b/drivers/soc/amlogic/meson-ee-pwrc.c
index dd5f2a13ceb5..dfbf0b1c7d29 100644
--- a/drivers/soc/amlogic/meson-ee-pwrc.c
+++ b/drivers/soc/amlogic/meson-ee-pwrc.c
@@ -46,6 +46,9 @@
#define HHI_NANOQ_MEM_PD_REG1 (0x47 << 2)
#define HHI_VPU_MEM_PD_REG2 (0x4d << 2)

+#define G12A_HHI_NANOQ_MEM_PD_REG0 (0x43 << 2)
+#define G12A_HHI_NANOQ_MEM_PD_REG1 (0x44 << 2)
+
struct meson_ee_pwrc;
struct meson_ee_pwrc_domain;

@@ -106,6 +109,13 @@ static struct meson_ee_pwrc_top_domain sm1_pwrc_usb = SM1_EE_PD(17);
static struct meson_ee_pwrc_top_domain sm1_pwrc_pci = SM1_EE_PD(18);
static struct meson_ee_pwrc_top_domain sm1_pwrc_ge2d = SM1_EE_PD(19);

+static struct meson_ee_pwrc_top_domain g12a_pwrc_nna = { \
+ .sleep_reg = GX_AO_RTI_GEN_PWR_SLEEP0, \
+ .sleep_mask = BIT(16) | BIT(17), \
+ .iso_reg = GX_AO_RTI_GEN_PWR_ISO0, \
+ .iso_mask = BIT(16) | BIT(17), \
+ };
+
/* Memory PD Domains */

#define VPU_MEMPD(__reg) \
@@ -217,6 +227,11 @@ static struct meson_ee_pwrc_mem_domain sm1_pwrc_mem_audio[] = {
{ HHI_AUDIO_MEM_PD_REG0, GENMASK(27, 26) },
};

+static struct meson_ee_pwrc_mem_domain g12a_pwrc_mem_nna[] = {
+ { G12A_HHI_NANOQ_MEM_PD_REG0, GENMASK(31, 0) },
+ { G12A_HHI_NANOQ_MEM_PD_REG1, GENMASK(23, 0) },
+};
+
#define VPU_PD(__name, __top_pd, __mem, __is_pwr_off, __resets, __clks) \
{ \
.name = __name, \
@@ -253,6 +268,8 @@ static struct meson_ee_pwrc_domain_desc g12a_pwrc_domains[] = {
[PWRC_G12A_VPU_ID] = VPU_PD("VPU", &gx_pwrc_vpu, g12a_pwrc_mem_vpu,
pwrc_ee_is_powered_off, 11, 2),
[PWRC_G12A_ETH_ID] = MEM_PD("ETH", meson_pwrc_mem_eth),
+ [PWRC_G12A_NNA_ID] = TOP_PD("NNA", &g12a_pwrc_nna, g12a_pwrc_mem_nna,
+ pwrc_ee_is_powered_off),
};

static struct meson_ee_pwrc_domain_desc gxbb_pwrc_domains[] = {
--
2.38.1


2022-12-01 23:11:02

by Martin Blumenstingl

[permalink] [raw]
Subject: Re: [PATCH v5 3/7] soc: amlogic: meson-pwrc: Add NNA power domain for A311D

On Thu, Dec 1, 2022 at 11:30 AM Tomeu Vizoso <[email protected]> wrote:
>
> Based on power initialization sequence in downstream driver.
>
> Signed-off-by: Tomeu Vizoso <[email protected]>
> Reviewed-by: Neil Armstrong <[email protected]>
Reviewed-by: Martin Blumenstingl <[email protected]>

[...]
> +static struct meson_ee_pwrc_mem_domain g12a_pwrc_mem_nna[] = {
> + { G12A_HHI_NANOQ_MEM_PD_REG0, GENMASK(31, 0) },
> + { G12A_HHI_NANOQ_MEM_PD_REG1, GENMASK(23, 0) },
I noticed the discussion in v1 of this series where Neil noted that
you should change GENMASK(31, 0) to GENMASK(23, 0) (for
G12A_HHI_NANOQ_MEM_PD_REG1).
This is all a bit confusing because the S905D3 datasheet mentions that
the HHI_NANOQ_MEM_PD_REG1 register uses the full 32 bits.
I'm still fine with the way it is right now because the datasheets are
not always perfect.


Best regards,
Martin

2022-12-02 09:34:17

by Neil Armstrong

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Subject: Re: [PATCH v5 3/7] soc: amlogic: meson-pwrc: Add NNA power domain for A311D

On 01/12/2022 23:43, Martin Blumenstingl wrote:
> On Thu, Dec 1, 2022 at 11:30 AM Tomeu Vizoso <[email protected]> wrote:
>>
>> Based on power initialization sequence in downstream driver.
>>
>> Signed-off-by: Tomeu Vizoso <[email protected]>
>> Reviewed-by: Neil Armstrong <[email protected]>
> Reviewed-by: Martin Blumenstingl <[email protected]>
>
> [...]
>> +static struct meson_ee_pwrc_mem_domain g12a_pwrc_mem_nna[] = {
>> + { G12A_HHI_NANOQ_MEM_PD_REG0, GENMASK(31, 0) },
>> + { G12A_HHI_NANOQ_MEM_PD_REG1, GENMASK(23, 0) },
> I noticed the discussion in v1 of this series where Neil noted that
> you should change GENMASK(31, 0) to GENMASK(23, 0) (for
> G12A_HHI_NANOQ_MEM_PD_REG1).
> This is all a bit confusing because the S905D3 datasheet mentions that
> the HHI_NANOQ_MEM_PD_REG1 register uses the full 32 bits.
> I'm still fine with the way it is right now because the datasheets are
> not always perfect.

Yes they're different in G12B & SM1
Neil

>
>
> Best regards,
> Martin