<div dir="ltr">I am not exactly sure if this is the way to send the patch for u-boot. But I am trying to update a patch for <a href="https://github.com/openbmc/u-boot/tree/v2016.07-aspeed-openbmc">https://github.com/openbmc/u-boot/tree/v2016.07-aspeed-openbmc</a>.<div><br></div><div>It just gives the options to have the u-boot enable the SGPIO registers for SCU.</div><div><br></div><div>Please take a look.</div><div><br></div><div>Best,</div><div><br></div><div>Willy Tu</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 31, 2021 at 2:31 PM Willy Tu <<a href="mailto:wltu@google.com">wltu@google.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">From a2d7336bb59df8f2ef622d4369fc035b2aafd74c Mon Sep 17 00:00:00 2001<br>From: Willy Tu <<a href="mailto:wltu@google.com" target="_blank">wltu@google.com</a>><br>Date: Mon, 22 Mar 2021 17:01:56 -0700<br>Subject: [PATCH] board: aspeed: Enable SGPIO in SCU<br><br>Add option to enable register for SGPIO in SCU<br><br>Signed-off-by: Willy Tu <<a href="mailto:wltu@google.com" target="_blank">wltu@google.com</a>><div>---<br> board/aspeed/ast-g4/Kconfig  |  4 ++++<br> board/aspeed/ast-g4/ast-g4.c | 13 +++++++++++++<br> 2 files changed, 17 insertions(+)<br><br>diff --git a/board/aspeed/ast-g4/Kconfig b/board/aspeed/ast-g4/Kconfig<br>index 2bec9a733a..e78030ae34 100644<br>--- a/board/aspeed/ast-g4/Kconfig<br>+++ b/board/aspeed/ast-g4/Kconfig<br>@@ -19,4 +19,8 @@ config SYS_CONFIG_NAME<br>       default "ast-g4-phy" if ASPEED_NET_PHY<br>     default "ast-g4-ncsi" if ASPEED_NET_NCSI<br> <br>+config ENABLE_SGPIO<br>+    tristate "Enable SGPIO in SCU"<br>+        default n<br>+<br> endif<br>diff --git a/board/aspeed/ast-g4/ast-g4.c b/board/aspeed/ast-g4/ast-g4.c<br>index 656495307b..e2463d4524 100644<br>--- a/board/aspeed/ast-g4/ast-g4.c<br>+++ b/board/aspeed/ast-g4/ast-g4.c<br>@@ -22,6 +22,19 @@ int board_init(void)<br>        /* address of boot parameters */<br>     gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;<br>        gd->flags = 0;<br>+<br>+#ifdef CONFIG_ENABLE_SGPIO<br>+    /* Unlock SCU */<br>+     writel(SCU_PROTECT_UNLOCK, AST_SCU_BASE);<br>+<br>+ /* Enable SGPIO Master */<br>+    u32 reg = readl(AST_SCU_BASE + AST_SCU_FUN_PIN_CTRL2);<br>+       reg |= (SCU_FUN_PIN_SGPMI |<br>+                  SCU_FUN_PIN_SGPMO |<br>+                  SCU_FUN_PIN_SGPMLD |<br>+                 SCU_FUN_PIN_SGPMCK);<br>+ writel(reg, AST_SCU_BASE + AST_SCU_FUN_PIN_CTRL2);<br>+#endif<br>  return 0;<br> }<br> <br>-- <br>2.31.0.208.g409f899ff0-goog<br><br></div></div>
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