{"id":801892,"url":"http://patchwork.ozlabs.org/api/1.2/patches/801892/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/1502862122-14771-13-git-send-email-bmeng.cn@gmail.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.2/projects/18/?format=json","name":"U-Boot","link_name":"uboot","list_id":"u-boot.lists.denx.de","list_email":"u-boot@lists.denx.de","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<1502862122-14771-13-git-send-email-bmeng.cn@gmail.com>","list_archive_url":null,"date":"2017-08-16T05:42:01","name":"[U-Boot,12/13] x86: braswell: Disable PUNIT power configuration for B0 stepping","commit_ref":"507f1024b8f2659e78324ce459f5965de4232c24","pull_url":null,"state":"accepted","archived":false,"hash":"85d4c839ba266efe6e66720942deb4fbe75b620d","submitter":{"id":64981,"url":"http://patchwork.ozlabs.org/api/1.2/people/64981/?format=json","name":"Bin Meng","email":"bmeng.cn@gmail.com"},"delegate":{"id":56520,"url":"http://patchwork.ozlabs.org/api/1.2/users/56520/?format=json","username":"bmeng","first_name":"Bin","last_name":"Meng","email":"bmeng.cn@gmail.com"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/1502862122-14771-13-git-send-email-bmeng.cn@gmail.com/mbox/","series":[],"comments":"http://patchwork.ozlabs.org/api/patches/801892/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/801892/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.denx.de\n\t(client-ip=81.169.180.215; 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" "},"content":"FSP's built-in UPD configuration enables PUNIT power configuration,\nbut on B0 stepping, this causes CPU hangs in fsp_init(). Disable it.\n\nSigned-off-by: Bin Meng \n---\n\n arch/x86/cpu/braswell/fsp_configs.c | 6 ++++++\n 1 file changed, 6 insertions(+)","diff":"diff --git a/arch/x86/cpu/braswell/fsp_configs.c b/arch/x86/cpu/braswell/fsp_configs.c\nindex d984519..249f851 100644\n--- a/arch/x86/cpu/braswell/fsp_configs.c\n+++ b/arch/x86/cpu/braswell/fsp_configs.c\n@@ -139,6 +139,12 @@ void update_fsp_configs(struct fsp_config_data *config,\n #endif\n \tupdate_fsp_gpio_configs(&silicon_upd->gpio_familiy_ptr,\n \t\t\t\t&silicon_upd->gpio_pad_ptr);\n+\t/*\n+\t * For Braswell B0 stepping, disable_punit_pwr_config must be set to 1\n+\t * otherwise it just hangs in fsp_init().\n+\t */\n+\tif (gd->arch.x86_mask == 2)\n+\t\tsilicon_upd->disable_punit_pwr_config = 1;\n \tsilicon_upd->emmc_mode = fdtdec_get_int(blob, node,\n \t\t\"fsp,emmc-mode\", EMMC_MODE_PCI);\n \tsilicon_upd->sata_speed = fdtdec_get_int(blob, node,\n","prefixes":["U-Boot","12/13"]}