diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-22 00:27:41 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-25 00:59:33 +0900 |
| commit | 019df879a93e266ac19f5eb00e4ee605db279b14 (patch) | |
| tree | b11ab5f86fa406775d870b1a51b2cf44fc8f7acc /arch/arm/mach-uniphier/clk/clk-proxstream2.c | |
| parent | 28f40d4a4db2b6c701d349fd4fac286d21369de2 (diff) | |
| download | talos-obmc-uboot-019df879a93e266ac19f5eb00e4ee605db279b14.tar.gz talos-obmc-uboot-019df879a93e266ac19f5eb00e4ee605db279b14.zip | |
ARM: uniphier: add ProXstream2 and PH1-LD6b support
The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/clk/clk-proxstream2.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/clk-proxstream2.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-proxstream2.c b/arch/arm/mach-uniphier/clk/clk-proxstream2.c new file mode 100644 index 0000000000..b494021ecf --- /dev/null +++ b/arch/arm/mach-uniphier/clk/clk-proxstream2.c @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/io.h> +#include <mach/init.h> +#include <mach/sc-regs.h> + +void proxstream2_clk_init(void) +{ + u32 tmp; + + /* deassert reset */ + tmp = readl(SC_RSTCTRL); +#ifdef CONFIG_USB_XHCI_UNIPHIER + tmp |= SC_RSTCTRL_NRST_USB3B0 | SC_RSTCTRL_NRST_GIO; +#endif +#ifdef CONFIG_UNIPHIER_ETH + tmp |= SC_RSTCTRL_NRST_ETHER; +#endif +#ifdef CONFIG_NAND_DENALI + tmp |= SC_RSTCTRL_NRST_NAND; +#endif + writel(tmp, SC_RSTCTRL); + readl(SC_RSTCTRL); /* dummy read */ + +#ifdef CONFIG_USB_XHCI_UNIPHIER + tmp = readl(SC_RSTCTRL2); + tmp |= SC_RSTCTRL2_NRST_USB3B1; + 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 +#ifdef CONFIG_NAND_DENALI + tmp |= SC_CLKCTRL_CEN_NAND; +#endif + writel(tmp, SC_CLKCTRL); + readl(SC_CLKCTRL); /* dummy read */ +} |
