[U-Boot] [PATCH 1/7] arm: Add support for STMicroelectronics STiH410 soc

patrice.chotard at st.com patrice.chotard at st.com
Fri Jan 20 17:05:11 CET 2017


From: Patrice Chotard <patrice.chotard at st.com>

The STiH410 is an advanced multi-HD AVC processor with 3D
graphics acceleration and 1.5-GHz ARM Cortex-A9 SMP CPU
part of the stih407 family.

It has wide connectivity including USB 3.0, PCI-e, SATA
and gigabit ethernet.

Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
---
 arch/arm/Kconfig                           |  9 ++++
 arch/arm/Makefile                          |  1 +
 arch/arm/include/asm/arch-stih410/gpio.h   | 20 +++++++
 arch/arm/include/asm/arch-stih410/sti.h    | 14 +++++
 arch/arm/include/asm/arch-stih410/syscfg.h | 87 ++++++++++++++++++++++++++++++
 arch/arm/mach-sti/Kconfig                  | 31 +++++++++++
 arch/arm/mach-sti/Makefile                 |  8 +++
 arch/arm/mach-sti/cpu.c                    | 16 ++++++
 arch/arm/mach-sti/timer.c                  | 47 ++++++++++++++++
 9 files changed, 233 insertions(+)
 create mode 100644 arch/arm/include/asm/arch-stih410/gpio.h
 create mode 100644 arch/arm/include/asm/arch-stih410/sti.h
 create mode 100644 arch/arm/include/asm/arch-stih410/syscfg.h
 create mode 100644 arch/arm/mach-sti/Kconfig
 create mode 100644 arch/arm/mach-sti/Makefile
 create mode 100644 arch/arm/mach-sti/cpu.c
 create mode 100644 arch/arm/mach-sti/timer.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0ed36cd..56a017c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -892,6 +892,13 @@ config STM32
 	select DM
 	select DM_SERIAL
 
+config ARCH_STI
+	bool "Support STMicrolectronics SoCs"
+	select CPU_V7
+	help
+	  Support for STMicroelectronics STiH407/10 SoC family.
+	  This SoC is used on Linaro 96Board STiH410-B2260
+
 config ARCH_ROCKCHIP
 	bool "Support Rockchip SoCs"
 	select OF_CONTROL
@@ -965,6 +972,8 @@ source "arch/arm/mach-snapdragon/Kconfig"
 
 source "arch/arm/mach-socfpga/Kconfig"
 
+source "arch/arm/mach-sti/Kconfig"
+
 source "arch/arm/mach-stm32/Kconfig"
 
 source "arch/arm/mach-tegra/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 4b8bf80..986e15d 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -71,6 +71,7 @@ machine-$(CONFIG_ARCH_SNAPDRAGON)	+= snapdragon
 machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
 machine-$(CONFIG_ARCH_RMOBILE)		+= rmobile
 machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
+machine-$(CONFIG_ARCH_STI)		+= sti
 machine-$(CONFIG_STM32)			+= stm32
 machine-$(CONFIG_TEGRA)			+= tegra
 machine-$(CONFIG_ARCH_UNIPHIER)		+= uniphier
diff --git a/arch/arm/include/asm/arch-stih410/gpio.h b/arch/arm/include/asm/arch-stih410/gpio.h
new file mode 100644
index 0000000..977b3f8
--- /dev/null
+++ b/arch/arm/include/asm/arch-stih410/gpio.h
@@ -0,0 +1,20 @@
+/*
+ * pins definition for STiH410-B2260
+ *
+ * (C) Copyright 2017 Patrice Chotard <patrice.chotard at st.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _STI_GPIO_H_
+#define _STI_GPIO_H_
+
+struct sti_pin_desc {
+	unsigned char bank;
+	unsigned char pin;
+	unsigned char alt;
+	int dir;
+};
+
+#endif /* _STI_GPIO_H_ */
+
diff --git a/arch/arm/include/asm/arch-stih410/sti.h b/arch/arm/include/asm/arch-stih410/sti.h
new file mode 100644
index 0000000..d35c4f0
--- /dev/null
+++ b/arch/arm/include/asm/arch-stih410/sti.h
@@ -0,0 +1,14 @@
+/*
+ * (C) Copyright 2017 Patrice Chotard <patrice.chotard at st.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _STI_H_
+#define _STI_H_
+
+/* A9_GLOBAL_TIMER_BASE */
+#define STI_A9_CONFIG_BASE			0x08760000
+#define STI_A9_GLOBAL_TIMER_BASE		(STI_A9_CONFIG_BASE + 0x0200)
+
+#endif /* _STI_H_ */
diff --git a/arch/arm/include/asm/arch-stih410/syscfg.h b/arch/arm/include/asm/arch-stih410/syscfg.h
new file mode 100644
index 0000000..ff7d252
--- /dev/null
+++ b/arch/arm/include/asm/arch-stih410/syscfg.h
@@ -0,0 +1,87 @@
+/*
+ * Configuration/Status Registers for STiH410 SoC
+ *
+ * (C) Copyright 2017 Patrice Chotard <patrice.chotard at st.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _STI_SYSCFG_H_
+#define _STI_SYSCFG_H_
+
+#define STIH410_SYSCONF0_BASE		0x09620000 /* 0-999 */
+#define STIH410_SYSCONF1_BASE		0x09280000 /* 1000-1999 */
+#define STIH410_SYSCONF2_BASE		0x09290000 /* 2000-2999 */
+#define STIH410_SYSCONF3_BASE		0x092a0000 /* 3000-3999 */
+#define STIH410_SYSCONF4_BASE		0x09600000 /* 4000-4999 */
+#define STIH410_SYSCONF5_BASE		0x092b0000 /* 5000-5999 */
+#define STIH410_SYSCONF6_BASE		0x092c0000 /* 6000-6999 */
+
+/*
+ * STIH410 System Configuration "accessors"
+ */
+#define STIH410_SYSCFG(x)						\
+	(								\
+		((x) < 1000)						\
+		? STIH410_SYSCONF0_BASE + ((x)-0)*0x4	\
+		:							\
+		((x) < 2000)						\
+		? STIH410_SYSCONF1_BASE + ((x)-1000)*0x4	\
+		:							\
+		((x) < 3000)						\
+		? STIH410_SYSCONF2_BASE + ((x)-2000)*0x4	\
+		:							\
+		((x) < 4000)						\
+		? STIH410_SYSCONF3_BASE + ((x)-3000)*0x4	\
+		:							\
+		((x) < 5000)						\
+		? STIH410_SYSCONF4_BASE + ((x)-4000)*0x4	\
+		:							\
+		((x) < 6000)						\
+		? STIH410_SYSCONF5_BASE + ((x)-5000)*0x4	\
+		:							\
+		STIH410_SYSCONF6_BASE + ((x)-6000)*0x4	\
+	)
+
+/*
+ * if ('flag')
+ *	set bit 'bit' in variable 'reg'
+ * else
+ *	clear bit 'bit' in variable 'reg'
+ */
+#define SET_SYSCONF_BIT(reg, flag, bit)			\
+	do {						\
+		if (flag) {				\
+			/* set bit 'bit' */		\
+			reg |= (1ul<<(bit));		\
+		} else {				\
+			/* clear bit 'bit' */		\
+			reg &= ~(1ul<<(bit));		\
+		}					\
+	} while (0)
+
+
+/*
+ * if ('flag')
+ *	set bits 'lsb:msb' to 'yes' in variable 'reg'
+ * else
+ *	set bits 'lsb:msb' to 'no' in variable 'reg'
+ *
+ * Note: 'msb' must be >= 'lsb'.
+ */
+#define SET_SYSCONF_BITS(reg, flag, lsb, msb, yes, no)	\
+	do {						\
+		const unsigned long _mask =		\
+			(1ul<<((msb)-(lsb)+1))-1ul;	\
+		/* clear all bits in 'lsb':'msb' */	\
+		reg &= ~(_mask<<(lsb));			\
+		if (flag) {				\
+			/* set 'yes' in lsb:msb */	\
+			reg |= ((yes)<<(lsb));		\
+		} else {				\
+			/* set 'no' in lsb:msb */	\
+			reg |= ((no)<<(lsb));		\
+		}					\
+	} while (0)
+
+#endif /* _STI_SYSCFG_ */
diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
new file mode 100644
index 0000000..67a3b24
--- /dev/null
+++ b/arch/arm/mach-sti/Kconfig
@@ -0,0 +1,31 @@
+if ARCH_STI
+
+config SYS_SOC
+	default "stih410"
+
+choice
+	prompt "STiH410 board select"
+
+config TARGET_STIH410_B2260
+	bool "96Boards STiH410-B2260"
+	help
+	  Support for 96Board STiH410-B2260 based on STMicrolectronics
+	  STiH410 soc. This board complies with 96Board Open Platform
+	  Specifications. Features:
+	  - 1GB DDR
+	  - On-Board USB combo WiFi/Bluetooth RTL8723BU
+	    with PCB soldered antenna
+	  - Ethernet 1000-BaseT
+	  - Sata
+	  - HDMI
+	  - 2 x USB2 type A
+	  - micro USB2 type AB
+	  - SD card slot
+	  - High speed connector (SD/I2C/USB interfaces)
+	  - Slow speed connector (UART/I2C/GPIO/SPI/PCM interfaces)
+
+endchoice
+
+source "board/st/stih410-b2260/Kconfig"
+
+endif
diff --git a/arch/arm/mach-sti/Makefile b/arch/arm/mach-sti/Makefile
new file mode 100644
index 0000000..a97101d
--- /dev/null
+++ b/arch/arm/mach-sti/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2017
+# Patrice Chotard, <patrice.chotard at st.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += cpu.o timer.o
diff --git a/arch/arm/mach-sti/cpu.c b/arch/arm/mach-sti/cpu.c
new file mode 100644
index 0000000..bf79b29
--- /dev/null
+++ b/arch/arm/mach-sti/cpu.c
@@ -0,0 +1,16 @@
+/*
+ * (C) Copyright 2017 Patrice Chotard <patrice.chotard at st.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <asm/arch/syscfg.h>
+#include <asm/io.h>
+
+void reset_cpu(ulong addr)
+{
+	unsigned long sysconf = readl(STIH410_SYSCONF4_BASE);
+
+	SET_SYSCONF_BIT(sysconf, 0, 0);
+	writel(sysconf, STIH410_SYSCONF4_BASE);
+}
diff --git a/arch/arm/mach-sti/timer.c b/arch/arm/mach-sti/timer.c
new file mode 100644
index 0000000..cf4511f
--- /dev/null
+++ b/arch/arm/mach-sti/timer.c
@@ -0,0 +1,47 @@
+/*
+ * (C) Copyright 2017 Patrice Chotard <patrice.chotard at st.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sti.h>
+#include <asm/arch-armv7/globaltimer.h>
+
+static struct globaltimer * const global_timer =
+	(struct globaltimer *)STI_A9_GLOBAL_TIMER_BASE;
+
+static u64 get_cpu_global_timer(void)
+{
+	u32 low, high;
+	u64 timer;
+
+	u32 old = readl(&global_timer->cnt_h);
+	while (1) {
+		low = readl(&global_timer->cnt_l);
+		high = readl(&global_timer->cnt_h);
+		if (old == high)
+			break;
+		else
+			old = high;
+	}
+	timer = high;
+	return (u64)((timer << 32) | low);
+}
+
+int timer_init(void)
+{
+	writel(0x01, &global_timer->ctl);
+	return 0;
+}
+
+unsigned long long get_ticks(void)
+{
+	return get_cpu_global_timer();
+}
+
+ulong get_tbclk(void)
+{
+	return (ulong)(CONFIG_SYS_HZ_CLOCK >> 1);
+}
-- 
1.9.1



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