This is necessary to use the USB 3.0 host controllers on PH1-Pro4.
Signed-off-by: Masahiro Yamada <yamad...@jp.panasonic.com>
---
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None
arch/arm/mach-uniphier/include/mach/sc-regs.h | 11 ++++++++++-
arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c | 15 +++++++++++++++
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-uniphier/include/mach/sc-regs.h
b/arch/arm/mach-uniphier/include/mach/sc-regs.h
index f0467bb..caec6c2 100644
--- a/arch/arm/mach-uniphier/include/mach/sc-regs.h
+++ b/arch/arm/mach-uniphier/include/mach/sc-regs.h
@@ -1,7 +1,7 @@
/*
* UniPhier SC (System Control) block registers
*
- * Copyright (C) 2011-2014 Panasonic Corporation
+ * Copyright (C) 2011-2015 Panasonic Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -38,19 +38,28 @@
#define SC_VPLL27BCTRL3 (SC_BASE_ADDR | 0x1298)
#define SC_RSTCTRL (SC_BASE_ADDR | 0x2000)
+#define SC_RSTCTRL_NRST_USB3B0 (0x1 << 17) /* USB3 #0 bus */
+#define SC_RSTCTRL_NRST_USB3C0 (0x1 << 16) /* USB3 #0 core */
#define SC_RSTCTRL_NRST_ETHER (0x1 << 12)
#define SC_RSTCTRL_NRST_STDMAC (0x1 << 10)
+#define SC_RSTCTRL_NRST_GIO (0x1 << 6)
#define SC_RSTCTRL_NRST_UMC1 (0x1 << 5)
#define SC_RSTCTRL_NRST_UMC0 (0x1 << 4)
#define SC_RSTCTRL_NRST_NAND (0x1 << 2)
#define SC_RSTCTRL2 (SC_BASE_ADDR | 0x2004)
+#define SC_RSTCTRL2_NRST_USB3B1 (0x1 << 17) /* USB3 #1 bus
*/
+#define SC_RSTCTRL2_NRST_USB3C1 (0x1 << 16) /* USB3 #1 core
*/
+
#define SC_RSTCTRL3 (SC_BASE_ADDR | 0x2008)
#define SC_CLKCTRL (SC_BASE_ADDR | 0x2104)
+#define SC_CLKCTRL_CEN_USB31 (0x1 << 17) /* USB3 #1 */
+#define SC_CLKCTRL_CEN_USB30 (0x1 << 16) /* USB3 #0 */
#define SC_CLKCTRL_CEN_ETHER (0x1 << 12)
#define SC_CLKCTRL_CEN_MIO (0x1 << 11)
#define SC_CLKCTRL_CEN_STDMAC (0x1 << 10)
+#define SC_CLKCTRL_CEN_GIO (0x1 << 6)
#define SC_CLKCTRL_CEN_UMC (0x1 << 4)
#define SC_CLKCTRL_CEN_NAND (0x1 << 2)
#define SC_CLKCTRL_CEN_SBC (0x1 << 1)
diff --git a/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
b/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
index 4ac5411..054efa6 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
+++ b/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
@@ -14,6 +14,10 @@ void clkrst_init(void)
/* deassert reset */
tmp = readl(SC_RSTCTRL);
+#ifdef CONFIG_USB_XHCI_UNIPHIER
+ tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_USB3C0 |
+ SC_RSTCTRL_NRST_GIO;
+#endif
#ifdef CONFIG_UNIPHIER_ETH
tmp |= SC_RSTCTRL_NRST_ETHER;
#endif
@@ -26,8 +30,19 @@ void clkrst_init(void)
writel(tmp, SC_RSTCTRL);
readl(SC_RSTCTRL); /* dummy read */
+#ifdef CONFIG_USB_XHCI_UNIPHIER
+ tmp = readl(SC_RSTCTRL2);
+ tmp |= SC_RSTCTRL2_NRST_USB3B1 | SC_RSTCTRL2_NRST_USB3C1;
+ writel(tmp, SC_RSTCTRL2);
+ readl(SC_RSTCTRL2); /* dummy read */
+#endif
+
/* privide clocks */
tmp = readl(SC_CLKCTRL);
+#ifdef CONFIG_USB_XHCI_UNIPHIER
+ tmp |= SC_CLKCTRL_CEN_USB31 | SC_CLKCTRL_CEN_USB30 |
+ SC_CLKCTRL_CEN_GIO;
+#endif
#ifdef CONFIG_UNIPHIER_ETH
tmp |= SC_CLKCTRL_CEN_ETHER;
#endif
--
1.9.1
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