[U-Boot] [PATCH v5 17/26] ARM: UniPhier: enable xHCI and GIO cores for PH1-Pro4

[Masahiro Yamada]

This is necessary to use the USB 3.0 host controllers on PH1-Pro4.

Signed-off-by: Masahiro Yamada <yamada.m at 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