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soc: bcm: bcm2835-power: Add support for BCM2712

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BCM2712 has a PM block but neither ASB nor RPIVID_ASB. Use the absence
of the "asb" register range to indicate BCM2712 and its different PM
register range.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
This commit is contained in:
Phil Elwell
2023-03-08 14:42:48 +00:00
committed by Dom Cobley
parent 6fb964cc5c
commit f713bcde6a
1 changed files with 19 additions and 10 deletions
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29
drivers/pmdomain/bcm/bcm2835-power.c
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@@ -79,6 +79,7 @@
#define PM_IMAGE 0x108
#define PM_GRAFX 0x10c
#define PM_PROC 0x110
#define PM_GRAFX_2712 0x304
#define PM_ENAB BIT(12)
#define PM_ISPRSTN BIT(8)
#define PM_H264RSTN BIT(7)
@@ -381,6 +382,9 @@ static int bcm2835_power_pd_power_on(struct generic_pm_domain *domain)
return bcm2835_power_power_on(pd, PM_GRAFX);
case BCM2835_POWER_DOMAIN_GRAFX_V3D:
if (!power->asb)
return bcm2835_asb_power_on(pd, PM_GRAFX_2712,
0, 0, PM_V3DRSTN);
return bcm2835_asb_power_on(pd, PM_GRAFX,
ASB_V3D_M_CTRL, ASB_V3D_S_CTRL,
PM_V3DRSTN);
@@ -447,6 +451,9 @@ static int bcm2835_power_pd_power_off(struct generic_pm_domain *domain)
return bcm2835_power_power_off(pd, PM_GRAFX);
case BCM2835_POWER_DOMAIN_GRAFX_V3D:
if (!power->asb)
return bcm2835_asb_power_off(pd, PM_GRAFX_2712,
0, 0, PM_V3DRSTN);
return bcm2835_asb_power_off(pd, PM_GRAFX,
ASB_V3D_M_CTRL, ASB_V3D_S_CTRL,
PM_V3DRSTN);
@@ -635,19 +642,21 @@ static int bcm2835_power_probe(struct platform_device *pdev)
power->asb = pm->asb;
power->rpivid_asb = pm->rpivid_asb;
id = readl(power->asb + ASB_AXI_BRDG_ID);
if (id != BCM2835_BRDG_ID /* "BRDG" */) {
dev_err(dev, "ASB register ID returned 0x%08x\n", id);
return -ENODEV;
}
if (power->rpivid_asb) {
id = readl(power->rpivid_asb + ASB_AXI_BRDG_ID);
if (power->asb) {
id = readl(power->asb + ASB_AXI_BRDG_ID);
if (id != BCM2835_BRDG_ID /* "BRDG" */) {
dev_err(dev, "RPiVid ASB register ID returned 0x%08x\n",
id);
dev_err(dev, "ASB register ID returned 0x%08x\n", id);
return -ENODEV;
}
if (power->rpivid_asb) {
id = readl(power->rpivid_asb + ASB_AXI_BRDG_ID);
if (id != BCM2835_BRDG_ID /* "BRDG" */) {
dev_err(dev, "RPiVid ASB register ID returned 0x%08x\n",
id);
return -ENODEV;
}
}
}
power->pd_xlate.domains = devm_kcalloc(dev,