diff options
| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-02-27 02:26:58 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-03-01 00:02:55 +0900 |
| commit | 1535163a4e2dbc9c4a9b5c4b05cb8987f526885f (patch) | |
| tree | d6019ee377e58b50fb56789ce1b073295ada1788 /arch/arm | |
| parent | bdcf5a4c14200abf4e693c9b5c60ea495a2d1cef (diff) | |
ARM: UniPhier: enable xHCI and GIO cores for PH1-Pro4
This is necessary to use the USB 3.0 host controllers on PH1-Pro4.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-uniphier/include/mach/sc-regs.h | 11 | ||||
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c | 15 |
2 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/mach-uniphier/include/mach/sc-regs.h b/arch/arm/mach-uniphier/include/mach/sc-regs.h index f0467bbde31..caec6c25747 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 4ac5411562a..054efa65377 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 |