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x86: braswell: Disable PUNIT power configuration for B0 stepping

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FSP's built-in UPD configuration enables PUNIT power configuration,
but on B0 stepping, this causes CPU hangs in fsp_init(). Disable it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2017-08-15 22:42:01 -07:00
parent fffad9264a
commit 507f1024b8
1 changed files with 6 additions and 0 deletions
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6
arch/x86/cpu/braswell/fsp_configs.c
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@ -139,6 +139,12 @@ void update_fsp_configs(struct fsp_config_data *config,
#endif
update_fsp_gpio_configs(&silicon_upd->gpio_familiy_ptr,
&silicon_upd->gpio_pad_ptr);
/*
* For Braswell B0 stepping, disable_punit_pwr_config must be set to 1
* otherwise it just hangs in fsp_init().
*/
if (gd->arch.x86_mask == 2)
silicon_upd->disable_punit_pwr_config = 1;
silicon_upd->emmc_mode = fdtdec_get_int(blob, node,
"fsp,emmc-mode", EMMC_MODE_PCI);
silicon_upd->sata_speed = fdtdec_get_int(blob, node,