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Subject[PATCH Broadcom/stblinux 2/2] soc: bcm: bcm-pmb: add BCM63138 SATA support
Date
From: Rafał Miłecki <rafal@milecki.pl>

BCM63138 has SATA controller that needs to be powered up using PMB.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
Florian: this is based on your patches
ARM: dts: BCM63xx: enable SATA PHY and AHCI controller
reset: bcm63xx: Add Broadcom BCM63138 reset controller driver

I didn't test it as I don't own any bcm63xx devices.
---
drivers/soc/bcm/bcm63xx/bcm-pmb.c | 30 ++++++++++++++++++++++++++++++
include/dt-bindings/soc/bcm-pmb.h | 1 +
2 files changed, 31 insertions(+)

diff --git a/drivers/soc/bcm/bcm63xx/bcm-pmb.c b/drivers/soc/bcm/bcm63xx/bcm-pmb.c
index c223023dc64f..774465c119be 100644
--- a/drivers/soc/bcm/bcm63xx/bcm-pmb.c
+++ b/drivers/soc/bcm/bcm63xx/bcm-pmb.c
@@ -209,6 +209,28 @@ static int bcm_pmb_power_on_device(struct bcm_pmb *pmb, int bus, u8 device)
return err;
}

+static int bcm_pmb_power_on_sata(struct bcm_pmb *pmb, int bus, u8 device)
+{
+ int err;
+
+ err = bcm_pmb_power_on_zone(pmb, bus, device, 0);
+ if (err)
+ return err;
+
+ /* Does not apply to the BCM963158 */
+ err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_MISC_CONTROL, 0);
+ if (err)
+ return err;
+
+ err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_SR_CONTROL, 0xffffffff);
+ if (err)
+ return err;
+
+ err = bcm_pmb_bpcm_write(pmb, bus, device, BPCM_SR_CONTROL, 0);
+
+ return err;
+}
+
static int bcm_pmb_power_on(struct generic_pm_domain *genpd)
{
struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd);
@@ -222,6 +244,8 @@ static int bcm_pmb_power_on(struct generic_pm_domain *genpd)
return bcm_pmb_power_on_zone(pmb, data->bus, data->device, 0);
case BCM_PMB_HOST_USB:
return bcm_pmb_power_on_device(pmb, data->bus, data->device);
+ case BCM_PMB_SATA:
+ return bcm_pmb_power_on_sata(pmb, data->bus, data->device);
default:
dev_err(pmb->dev, "unsupported device id: %d\n", data->id);
return -EINVAL;
@@ -317,8 +341,14 @@ static const struct bcm_pmb_pd_data bcm_pmb_bcm4908_data[] = {
{ },
};

+static const struct bcm_pmb_pd_data bcm_pmb_bcm63138_data[] = {
+ { .name = "sata", .id = BCM_PMB_SATA, .bus = 0, .device = 3, },
+ { },
+};
+
static const struct of_device_id bcm_pmb_of_match[] = {
{ .compatible = "brcm,bcm4908-pmb", .data = &bcm_pmb_bcm4908_data, },
+ { .compatible = "brcm,bcm63138-pmb", .data = &bcm_pmb_bcm63138_data, },
{ },
};

diff --git a/include/dt-bindings/soc/bcm-pmb.h b/include/dt-bindings/soc/bcm-pmb.h
index 744dc3af4d41..385884468007 100644
--- a/include/dt-bindings/soc/bcm-pmb.h
+++ b/include/dt-bindings/soc/bcm-pmb.h
@@ -7,5 +7,6 @@
#define BCM_PMB_PCIE1 0x02
#define BCM_PMB_PCIE2 0x03
#define BCM_PMB_HOST_USB 0x04
+#define BCM_PMB_SATA 0x05

#endif
--
2.26.2
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