diff mbox series

[Broadcom/stblinux,2/2] soc: bcm: bcm-pmb: add BCM63138 SATA support

Message ID 20210114175339.19920-2-zajec5@gmail.com
State Not Applicable
Headers show
Series [Broadcom/stblinux,1/2] dt-bindings: power: bcm-pmb: add BCM63138 binding | expand

Checks

Context Check Description
robh/checkpatch warning total: 0 errors, 1 warnings, 56 lines checked

Commit Message

Rafał Miłecki Jan. 14, 2021, 5:53 p.m. UTC
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 mbox series

Patch

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