ARM: UniPhier: support 1CS support card for all the UniPhier SoCs

Two support card variants are used with UniPhier reference boards:
 - 1 chip select support card (original CPLD)
 - 3 chip selects support card (ARIMA-compatible CPLD)

Currently, the former is only supported on PH1-Pro4, but it can be
expanded to PH1-LD4, PH1-sLD8 with a little code change.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

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

@@ -4,8 +4,10 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
+obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
+obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
 else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
 obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o

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

@@ -19,32 +19,32 @@ void sbc_init(void)
 	tmp &= 0xfffffcff;
 	writel(tmp, PC0CTRL);
 
-	/* XECS1: sub/boot memory (boot swap = off/on) */
-	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
-	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
-	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
-	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
-
-	/* XECS0: boot/sub memory (boot swap = off/on) */
-	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL00);
-	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL01);
-	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL02);
-	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL04);
-
-	/* XECS3: peripherals */
-	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL30);
-	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL31);
-	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL32);
-	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL34);
-
-	/* base address regsiters */
-	writel(0x0000bc01, SBBASE0);
-	writel(0x0400bc01, SBBASE1);
-	writel(0x0800bf01, SBBASE3);
-
-	/* enable access to sub memory when boot swap is on */
-	if (boot_is_swapped())
-		sg_set_pinsel(155, 1); /* PORT24 -> XECS0 */
-
-	sg_set_pinsel(156, 1); /* PORT25 -> XECS3 */
+	/*
+	 * Only CS1 is connected to support card.
+	 * BKSZ[1:0] should be set to "01".
+	 */
+	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL10);
+	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL11);
+	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL12);
+	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL14);
+
+	if (boot_is_swapped()) {
+		/*
+		 * Boot Swap On: boot from external NOR/SRAM
+		 * 0x02000000-0x03ffffff is a mirror of 0x00000000-0x01ffffff.
+		 *
+		 * 0x00000000-0x01efffff, 0x02000000-0x03efffff: memory bank
+		 * 0x01f00000-0x01ffffff, 0x03f00000-0x03ffffff: peripherals
+		 */
+		writel(0x0000bc01, SBBASE0);
+	} else {
+		/*
+		 * Boot Swap Off: boot from mask ROM
+		 * 0x00000000-0x01ffffff: mask ROM
+		 * 0x02000000-0x03efffff: memory bank (31MB)
+		 * 0x03f00000-0x03ffffff: peripherals (1MB)
+		 */
+		writel(0x0000be01, SBBASE0); /* dummy */
+		writel(0x0200be01, SBBASE1);
+	}
 }

arch/arm/mach-uniphier/ph1-ld4/sbc_init_3cs.c

@@ -0,0 +1,50 @@
+/*
+ * 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/sbc-regs.h>
+#include <mach/sg-regs.h>
+
+void sbc_init(void)
+{
+	u32 tmp;
+
+	/* system bus output enable */
+	tmp = readl(PC0CTRL);
+	tmp &= 0xfffffcff;
+	writel(tmp, PC0CTRL);
+
+	/* XECS1: sub/boot memory (boot swap = off/on) */
+	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
+	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
+	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
+	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
+
+	/* XECS0: boot/sub memory (boot swap = off/on) */
+	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL00);
+	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL01);
+	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL02);
+	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL04);
+
+	/* XECS3: peripherals */
+	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL30);
+	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL31);
+	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL32);
+	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL34);
+
+	/* base address regsiters */
+	writel(0x0000bc01, SBBASE0);
+	writel(0x0400bc01, SBBASE1);
+	writel(0x0800bf01, SBBASE3);
+
+	/* enable access to sub memory when boot swap is on */
+	if (boot_is_swapped())
+		sg_set_pinsel(155, 1); /* PORT24 -> XECS0 */
+
+	sg_set_pinsel(156, 1); /* PORT25 -> XECS3 */
+}

arch/arm/mach-uniphier/ph1-pro4/Makefile

@@ -4,8 +4,10 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
+obj-y += sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
+obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
 else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
 obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o

arch/arm/mach-uniphier/ph1-pro4/sbc_init.c

@@ -12,7 +12,6 @@
 
 void sbc_init(void)
 {
-#if defined(CONFIG_PFC_MICRO_SUPPORT_CARD)
 	/*
 	 * Only CS1 is connected to support card.
 	 * BKSZ[1:0] should be set to "01".
@@ -41,35 +40,4 @@ void sbc_init(void)
 		writel(0x0000be01, SBBASE0); /* dummy */
 		writel(0x0200be01, SBBASE1);
 	}
-#elif defined(CONFIG_DCC_MICRO_SUPPORT_CARD)
-	/* XECS0: boot/sub memory (boot swap = off/on) */
-	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL00);
-	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL01);
-	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL02);
-	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL04);
-
-	/* XECS1: sub/boot memory (boot swap = off/on) */
-	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
-	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
-	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
-	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
-
-	/* XECS3: peripherals */
-	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL30);
-	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL31);
-	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL32);
-	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL34);
-
-	writel(0x0000bc01, SBBASE0); /* boot memory */
-	writel(0x0400bc01, SBBASE1); /* sub memory */
-	writel(0x0800bf01, SBBASE3); /* peripherals */
-
-	/* enable access to sub memory when boot swap is on */
-	if (boot_is_swapped())
-		sg_set_pinsel(318, 5); /* PORT22 -> XECS0 */
-
-	sg_set_pinsel(313, 5); /* PORT15 -> XECS3 */
-	writel(0x00000001, SG_LOADPINCTRL);
-
-#endif /* CONFIG_XXX_MICRO_SUPPORT_CARD */
 }

arch/arm/mach-uniphier/ph1-pro4/sbc_init_3cs.c

@@ -0,0 +1,43 @@
+/*
+ * 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/sbc-regs.h>
+#include <mach/sg-regs.h>
+
+void sbc_init(void)
+{
+	/* XECS0: boot/sub memory (boot swap = off/on) */
+	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL00);
+	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL01);
+	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL02);
+	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL04);
+
+	/* XECS1: sub/boot memory (boot swap = off/on) */
+	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
+	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
+	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
+	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
+
+	/* XECS3: peripherals */
+	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL30);
+	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL31);
+	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL32);
+	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL34);
+
+	writel(0x0000bc01, SBBASE0); /* boot memory */
+	writel(0x0400bc01, SBBASE1); /* sub memory */
+	writel(0x0800bf01, SBBASE3); /* peripherals */
+
+	/* enable access to sub memory when boot swap is on */
+	if (boot_is_swapped())
+		sg_set_pinsel(318, 5); /* PORT22 -> XECS0 */
+
+	sg_set_pinsel(313, 5); /* PORT15 -> XECS3 */
+	writel(0x00000001, SG_LOADPINCTRL);
+}

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

@@ -4,8 +4,10 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o early_clkrst_init.o \
+obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
+obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
 else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
 obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o

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

@@ -1,58 +1 @@
-/*
- * 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/sbc-regs.h>
-#include <mach/sg-regs.h>
-
-void sbc_init(void)
-{
-	u32 tmp;
-
-	/* system bus output enable */
-	tmp = readl(PC0CTRL);
-	tmp &= 0xfffffcff;
-	writel(tmp, PC0CTRL);
-
-	/*
-	 * SBCTRL0* does not need settings because PH1-sLD8 has no support for
-	 * XECS0.  The boot swap must be enabled to boot from the support card.
-	 */
-
-	if (boot_is_swapped()) {
-		/* XECS1 : boot memory if boot swap is on */
-		writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
-		writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
-		writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
-		writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
-	}
-
-	/* XECS4 : sub memory */
-	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL40);
-	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL41);
-	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL42);
-	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL44);
-
-	/* XECS5 : peripherals */
-	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL50);
-	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL51);
-	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL52);
-	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL54);
-
-	/* base address regsiters */
-	writel(0x0000bc01, SBBASE0); /* boot memory */
-	writel(0x0900bfff, SBBASE1); /* dummy */
-	writel(0x0400bc01, SBBASE4); /* sub memory */
-	writel(0x0800bf01, SBBASE5); /* peripherals */
-
-	sg_set_pinsel(134, 16); /* XIRQ6 -> XECS4 */
-	sg_set_pinsel(135, 16); /* XIRQ7 -> XECS5 */
-
-	/* dummy read to assure write process */
-	readl(SG_PINCTRL(0));
-}
+#include "../ph1-ld4/sbc_init.c"

arch/arm/mach-uniphier/ph1-sld8/sbc_init_3cs.c

@@ -0,0 +1,58 @@
+/*
+ * 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/sbc-regs.h>
+#include <mach/sg-regs.h>
+
+void sbc_init(void)
+{
+	u32 tmp;
+
+	/* system bus output enable */
+	tmp = readl(PC0CTRL);
+	tmp &= 0xfffffcff;
+	writel(tmp, PC0CTRL);
+
+	/*
+	 * SBCTRL0* does not need settings because PH1-sLD8 has no support for
+	 * XECS0.  The boot swap must be enabled to boot from the support card.
+	 */
+
+	if (boot_is_swapped()) {
+		/* XECS1 : boot memory if boot swap is on */
+		writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL10);
+		writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL11);
+		writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL12);
+		writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL14);
+	}
+
+	/* XECS4 : sub memory */
+	writel(SBCTRL0_SAVEPIN_MEM_VALUE, SBCTRL40);
+	writel(SBCTRL1_SAVEPIN_MEM_VALUE, SBCTRL41);
+	writel(SBCTRL2_SAVEPIN_MEM_VALUE, SBCTRL42);
+	writel(SBCTRL4_SAVEPIN_MEM_VALUE, SBCTRL44);
+
+	/* XECS5 : peripherals */
+	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL50);
+	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL51);
+	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL52);
+	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL54);
+
+	/* base address regsiters */
+	writel(0x0000bc01, SBBASE0); /* boot memory */
+	writel(0x0900bfff, SBBASE1); /* dummy */
+	writel(0x0400bc01, SBBASE4); /* sub memory */
+	writel(0x0800bf01, SBBASE5); /* peripherals */
+
+	sg_set_pinsel(134, 16); /* XIRQ6 -> XECS4 */
+	sg_set_pinsel(135, 16); /* XIRQ7 -> XECS5 */
+
+	/* dummy read to assure write process */
+	readl(SG_PINCTRL(0));
+}