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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-22 00:27:40 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-09-25 00:59:28 +0900 |
| commit | 28f40d4a4db2b6c701d349fd4fac286d21369de2 (patch) | |
| tree | 5e5e2fdf2be0c3226ac782c857eb4e3edefbbf54 /arch/arm/mach-uniphier/clk/clk-ph1-pro5.c | |
| parent | 323d1f9d5bebfe55e97e23c8094055685665afef (diff) | |
| download | talos-obmc-uboot-28f40d4a4db2b6c701d349fd4fac286d21369de2.tar.gz talos-obmc-uboot-28f40d4a4db2b6c701d349fd4fac286d21369de2.zip | |
ARM: uniphier: add PH1-Pro5 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-ph1-pro5.c')
| -rw-r--r-- | arch/arm/mach-uniphier/clk/clk-ph1-pro5.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-ph1-pro5.c b/arch/arm/mach-uniphier/clk/clk-ph1-pro5.c new file mode 100644 index 0000000000..f78edbbe3f --- /dev/null +++ b/arch/arm/mach-uniphier/clk/clk-ph1-pro5.c @@ -0,0 +1,44 @@ +/* + * 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 ph1_pro5_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_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_NAND_DENALI + tmp |= SC_CLKCTRL_CEN_NAND; +#endif + writel(tmp, SC_CLKCTRL); + readl(SC_CLKCTRL); /* dummy read */ +} |
