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>

arch/arm/mach-uniphier/board_early_init_f.c

@@ -9,6 +9,7 @@
 #include <mach/board.h>
 
 void pin_init(void);
+void clkrst_init(void);
 
 int board_early_init_f(void)
 {
@@ -18,5 +19,9 @@ int board_early_init_f(void)
 
 	led_write(U, 1, , );
 
+	clkrst_init();
+
+	led_write(U, 2, , );
+
 	return 0;
 }

arch/arm/mach-uniphier/ph1-ld4/Makefile

@@ -4,10 +4,10 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 else
-obj-$(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
 

arch/arm/mach-uniphier/ph1-ld4/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 @@ void clkrst_init(void)
 
 	/* 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 */
 }

arch/arm/mach-uniphier/ph1-ld4/early_clkrst_init.c

@@ -0,0 +1 @@
+#include "../ph1-pro4/early_clkrst_init.c"

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
 

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 @@ void clkrst_init(void)
 
 	/* 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 */
 }

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 */
+}

arch/arm/mach-uniphier/ph1-sld8/Makefile

@@ -4,10 +4,10 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 else
-obj-$(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
 

arch/arm/mach-uniphier/ph1-sld8/clkrst_init.c

@@ -1,29 +1 @@
-/*
- * Copyright (C) 2011-2014 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>
-
-void clkrst_init(void)
-{
-	u32 tmp;
-
-	/* deassert reset */
-	tmp = readl(SC_RSTCTRL);
-	tmp |= SC_RSTCTRL_NRST_ETHER | SC_RSTCTRL_NRST_UMC1
-		| SC_RSTCTRL_NRST_UMC0 | SC_RSTCTRL_NRST_NAND;
-	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;
-	writel(tmp, SC_CLKCTRL);
-	readl(SC_CLKCTRL); /* dummy read */
-}
+#include "../ph1-ld4/clkrst_init.c"

arch/arm/mach-uniphier/ph1-sld8/early_clkrst_init.c

@@ -0,0 +1 @@
+#include "../ph1-ld4/early_clkrst_init.c"

arch/arm/mach-uniphier/spl.c

@@ -18,7 +18,7 @@ void sbc_init(void);
 void sg_init(void);
 void pll_init(void);
 void pin_init(void);
-void clkrst_init(void);
+void early_clkrst_init(void);
 int umc_init(void);
 void enable_dpll_ssc(void);
 
@@ -38,7 +38,7 @@ void spl_board_init(void)
 
 	led_write(L, 0, , );
 
-	clkrst_init();
+	early_clkrst_init();
 
 	led_write(L, 1, , );