ARM: UniPhier: split clkrst_init() into two functions
Split the current clkrst_init() into two functions:
- early_clkrst_init(): called from SPL
Deassert the reset signals of the memory controller and some other
basic cores.
- clkrst_init(): called from main U-boot
Deassert the reset signals that are necessary for the access to
peripherals etc.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/arm/mach-uniphier/ph1-pro4/Makefile b/arch/arm/mach-uniphier/ph1-pro4/Makefile
index e330fda..0390506 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/Makefile
+++ b/arch/arm/mach-uniphier/ph1-pro4/Makefile
@@ -4,10 +4,10 @@
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+obj-y += sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
pll_spectrum.o umc_init.o ddrphy_init.o
else
-obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o
+obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
endif
diff --git a/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c b/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
index eaa45f9..f5fc418 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
+++ b/arch/arm/mach-uniphier/ph1-pro4/clkrst_init.c
@@ -1,11 +1,10 @@
/*
- * Copyright (C) 2011-2014 Panasonic Corporation
+ * Copyright (C) 2011-2015 Panasonic Corporation
* Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
-#include <common.h>
#include <asm/io.h>
#include <mach/sc-regs.h>
@@ -15,15 +14,26 @@
/* deassert reset */
tmp = readl(SC_RSTCTRL);
- tmp |= SC_RSTCTRL_NRST_ETHER | SC_RSTCTRL_NRST_UMC1
- | SC_RSTCTRL_NRST_UMC0 | SC_RSTCTRL_NRST_NAND;
+#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 */
/* privide clocks */
tmp = readl(SC_CLKCTRL);
- tmp |= SC_CLKCTRL_CEN_ETHER | SC_CLKCTRL_CEN_MIO | SC_CLKCTRL_CEN_UMC
- | SC_CLKCTRL_CEN_NAND | SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
+#ifdef CONFIG_UNIPHIER_ETH
+ tmp |= SC_CLKCTRL_CEN_ETHER;
+#endif
+#ifdef CONFIG_USB_EHCI_UNIPHIER
+ tmp |= SC_CLKCTRL_CEN_MIO;
+#endif
+#ifdef CONFIG_NAND_DENALI
+ tmp |= SC_CLKCTRL_CEN_NAND;
+#endif
writel(tmp, SC_CLKCTRL);
readl(SC_CLKCTRL); /* dummy read */
}
diff --git a/arch/arm/mach-uniphier/ph1-pro4/early_clkrst_init.c b/arch/arm/mach-uniphier/ph1-pro4/early_clkrst_init.c
new file mode 100644
index 0000000..ae4185f
--- /dev/null
+++ b/arch/arm/mach-uniphier/ph1-pro4/early_clkrst_init.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ * Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <mach/sc-regs.h>
+
+void early_clkrst_init(void)
+{
+ u32 tmp;
+
+ /* deassert reset */
+ tmp = readl(SC_RSTCTRL);
+ tmp |= SC_RSTCTRL_NRST_UMC1 | SC_RSTCTRL_NRST_UMC0;
+ writel(tmp, SC_RSTCTRL);
+ readl(SC_RSTCTRL); /* dummy read */
+
+ /* privide clocks */
+ tmp = readl(SC_CLKCTRL);
+ tmp |= SC_CLKCTRL_CEN_UMC | SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
+ writel(tmp, SC_CLKCTRL);
+ readl(SC_CLKCTRL); /* dummy read */
+}