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power: pmic: rk8xx: Fix power-on source check in SPL

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The commit 30975fb73d ("rockchip: Add option to prevent booting on
power plug-in") introduce an option to prevent booting a device when the
device was powered on due to power plug-in instead of pressing a power
button.

This feature works by checking the power-on source during PMIC probe
and powers off the device if power-on source was power plug-in.
This check currently runs very late at PMIC probe in U-Boot proper.

Fix so that the power-on source check can work at probe time in SPL.
Also enable probe after bind and remove the PMIC banner in SPL.

With this we can use ROCKCHIP_RK8XX_DISABLE_BOOT_ON_POWERON and
SPL_PMIC_RK8XX to power off the device very quickly after TPL instead
of after TF-A and U-Boot proper has been loaded and run.

  DDR V1.18 f366f69a7d typ 23/07/17-15:48:58
  ln
  LP4/4x derate en, other dram:1x trefi
  ddrconfig:7
  LPDDR4X, 324MHz
  BW=32 Col=10 Bk=8 CS0 Row=17 CS1 Row=17 CS=2 Die BW=16 Size=8192MB

  change to: 324MHz
  clk skew:0x64

  change to: 528MHz
  clk skew:0x58

  change to: 780MHz
  clk skew:0x58

  change to: 1056MHz(final freq)
  clk skew:0x40
  out
  Power Off due to plug-in event

Fixes: 30975fb73d ("rockchip: Add option to prevent booting on power plug-in")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
This commit is contained in:
Jonas Karlman 2023-08-03 21:02:42 +00:00 committed by Kever Yang
parent 7ecc90f1fd
commit c8ebcc921f
1 changed files with 13 additions and 7 deletions
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20
drivers/power/pmic/rk8xx.c
View file

@ -156,6 +156,10 @@ static int rk8xx_bind(struct udevice *dev)
if (!children)
debug("%s: %s - no child found\n", __func__, dev->name);
if (IS_ENABLED(CONFIG_SPL_BUILD) &&
IS_ENABLED(CONFIG_ROCKCHIP_RK8XX_DISABLE_BOOT_ON_POWERON))
dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND);
/* Always return success for this device */
return 0;
}
@ -236,14 +240,16 @@ static int rk8xx_probe(struct udevice *dev)
pmic_reg_read(dev, init_data[i].reg));
}
printf("PMIC: RK%x ", show_variant);
if (!IS_ENABLED(CONFIG_SPL_BUILD)) {
printf("PMIC: RK%x ", show_variant);
if (on_source && off_source)
printf("(on=0x%02x, off=0x%02x)",
pmic_reg_read(dev, on_source),
pmic_reg_read(dev, off_source));
printf("\n");
}
if (on_source && off_source)
printf("(on=0x%02x, off=0x%02x)",
pmic_reg_read(dev, on_source),
pmic_reg_read(dev, off_source));
printf("\n");
if (CONFIG_IS_ENABLED(ROCKCHIP_RK8XX_DISABLE_BOOT_ON_POWERON))
if (IS_ENABLED(CONFIG_ROCKCHIP_RK8XX_DISABLE_BOOT_ON_POWERON))
rk8xx_off_for_plugin(dev);
return 0;