kmp204x/qrio: support for setting the CPU reset request mode

To acheive this, the qrio_uprstreq() function that sets the UPRSTREQN flag in the qrio RESCNF reg is added. Signed-off-by: Rainer Boschung <[email protected]> Signed-off-by: Valentin Longchamp <[email protected]> Reviewed-by: York Sun <[email protected]>
t-akashi · Aug 1, 2014 · 6caa185 · 6caa185
1 parent a09f470
commit 6caa185
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diff --git a/board/keymile/kmp204x/kmp204x.h b/board/keymile/kmp204x/kmp204x.h
@@ -27,4 +27,9 @@ void qrio_enable_app_buffer(void);
 void qrio_cpuwd_flag(bool flag);
 int qrio_reset_reason(void);
 
+#define UPREQ_UNIT_RST		0x0
+#define UPREQ_CORE_RST		0x1
+
+void qrio_uprstreq(u8 mode);
+
 void pci_of_setup(void *blob, bd_t *bd);
diff --git a/board/keymile/kmp204x/qrio.c b/board/keymile/kmp204x/qrio.c
@@ -188,3 +188,20 @@ void qrio_cpuwd_flag(bool flag)
 		reason1 &= ~REASON1_CPUWD;
 	out_8(qrio_base + REASON1_OFF, reason1);
 }
+
+#define RSTCFG_OFF	0x11
+
+void qrio_uprstreq(u8 mode)
+{
+	u32 rstcfg;
+	void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE;
+
+	rstcfg = in_8(qrio_base + RSTCFG_OFF);
+
+	if (mode & UPREQ_CORE_RST)
+		rstcfg |= UPREQ_CORE_RST;
+	else
+		rstcfg &= ~UPREQ_CORE_RST;
+
+	out_8(qrio_base + RSTCFG_OFF, rstcfg);
+}