exynos: update tzpc to make it common for exynos4 and exynos5

This requires that cpu_is_exynos4/5 should be made available before tzpc_init.
Hence this patch also makes necessary changes to have cpu_info in spl and
invokes arch_cpu_init before tzpc_init in low_level_init.S for smdk5250.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Acked-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/cpu/armv7/exynos/tzpc.c

@@ -22,6 +22,7 @@
  * MA 02111-1307 USA
  */
 
+#include <common.h>
 #include <asm/arch/tzpc.h>
 #include <asm/io.h>
 
@@ -29,20 +30,28 @@
 void tzpc_init(void)
 {
 	struct exynos_tzpc *tzpc;
-	unsigned int addr;
+	unsigned int addr, start = 0, end = 0;
 
-	for (addr = TZPC0_BASE; addr <= TZPC9_BASE; addr += TZPC_BASE_OFFSET) {
+	start = samsung_get_base_tzpc();
+
+	if (cpu_is_exynos5())
+		end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
+	else if (cpu_is_exynos4())
+		end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
+
+	for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) {
 		tzpc = (struct exynos_tzpc *)addr;
 
-		if (addr == TZPC0_BASE)
+		if (addr == start)
 			writel(R0SIZE, &tzpc->r0size);
 
 		writel(DECPROTXSET, &tzpc->decprot0set);
 		writel(DECPROTXSET, &tzpc->decprot1set);
 
-		if (addr != TZPC9_BASE) {
-			writel(DECPROTXSET, &tzpc->decprot2set);
-			writel(DECPROTXSET, &tzpc->decprot3set);
-		}
+		if (cpu_is_exynos5() && (addr == end))
+			break;
+
+		writel(DECPROTXSET, &tzpc->decprot2set);
+		writel(DECPROTXSET, &tzpc->decprot3set);
 	}
 }

arch/arm/cpu/armv7/s5p-common/Makefile

@@ -26,9 +26,11 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)libs5p-common.o
 
 COBJS-y		+= cpu_info.o
+ifndef CONFIG_SPL_BUILD
 COBJS-y		+= timer.o
 COBJS-y		+= sromc.o
 COBJS-$(CONFIG_PWM)	+= pwm.o
+endif
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS))

arch/arm/include/asm/arch-exynos/cpu.h

@@ -38,6 +38,7 @@
 #define EXYNOS4_CLOCK_BASE		0x10030000
 #define EXYNOS4_SYSTIMER_BASE		0x10050000
 #define EXYNOS4_WATCHDOG_BASE		0x10060000
+#define EXYNOS4_TZPC_BASE		0x10110000
 #define EXYNOS4_MIU_BASE		0x10600000
 #define EXYNOS4_DMC0_BASE		0x10400000
 #define EXYNOS4_DMC1_BASE		0x10410000
@@ -74,6 +75,7 @@
 #define EXYNOS4X12_CLOCK_BASE		0x10030000
 #define EXYNOS4X12_SYSTIMER_BASE	0x10050000
 #define EXYNOS4X12_WATCHDOG_BASE	0x10060000
+#define EXYNOS4X12_TZPC_BASE		0x10110000
 #define EXYNOS4X12_DMC0_BASE		0x10600000
 #define EXYNOS4X12_DMC1_BASE		0x10610000
 #define EXYNOS4X12_GPIO_PART4_BASE	0x106E0000
@@ -107,6 +109,7 @@
 #define EXYNOS5_POWER_BASE		0x10040000
 #define EXYNOS5_SWRESET			0x10040400
 #define EXYNOS5_SYSREG_BASE		0x10050000
+#define EXYNOS5_TZPC_BASE		0x10100000
 #define EXYNOS5_WATCHDOG_BASE		0x101D0000
 #define EXYNOS5_ACE_SFR_BASE            0x10830000
 #define EXYNOS5_DMC_PHY0_BASE		0x10C00000
@@ -233,6 +236,7 @@ SAMSUNG_BASE(watchdog, WATCHDOG_BASE)
 SAMSUNG_BASE(power, POWER_BASE)
 SAMSUNG_BASE(spi, SPI_BASE)
 SAMSUNG_BASE(spi_isp, SPI_ISP_BASE)
+SAMSUNG_BASE(tzpc, TZPC_BASE)
 #endif
 
 #endif	/* _EXYNOS4_CPU_H */

arch/arm/include/asm/arch-exynos/tzpc.h

@@ -48,18 +48,10 @@ struct exynos_tzpc {
 	unsigned int pcellid3;
 };
 
-/* TZPC : Register Offsets */
-#define TZPC0_BASE		0x10100000
-#define TZPC1_BASE		0x10110000
-#define TZPC2_BASE		0x10120000
-#define TZPC3_BASE		0x10130000
-#define TZPC4_BASE		0x10140000
-#define TZPC5_BASE		0x10150000
-#define TZPC6_BASE		0x10160000
-#define TZPC7_BASE		0x10170000
-#define TZPC8_BASE		0x10180000
-#define TZPC9_BASE		0x10190000
+#define EXYNOS4_NR_TZPC_BANKS		6
+#define EXYNOS5_NR_TZPC_BANKS		10
 
+/* TZPC : Register Offsets */
 #define TZPC_BASE_OFFSET		0x10000
 
 /*

board/samsung/smdk5250/lowlevel_init.S

@@ -75,12 +75,14 @@ lowlevel_init:
 	bl	mem_ctrl_init
 
 1:
+	bl	arch_cpu_init
 	bl	tzpc_init
 	ldmia	r13!, {ip,pc}
 
 wakeup_reset:
 	bl	system_clock_init
 	bl	mem_ctrl_init
+	bl	arch_cpu_init
 	bl	tzpc_init
 
 exit_wakeup:

spl/Makefile

@@ -102,6 +102,10 @@ ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
 LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
 endif
 
+ifeq ($(SOC),exynos)
+LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
+endif
+
 # Add GCC lib
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o