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Date: Sun, 24 May 2015 16:11:46 +0100
From: Paul Burton <paul.burton@...tec.com>
To: <linux-mips@...ux-mips.org>
CC: Paul Burton <paul.burton@...tec.com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Mark Rutland <mark.rutland@....com>,
Pawel Moll <pawel.moll@....com>,
Ralf Baechle <ralf@...ux-mips.org>,
"Rob Herring" <robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
Joshua Kinard <kumba@...too.org>,
Leonid Yegoshin <Leonid.Yegoshin@...tec.com>,
Deng-Cheng Zhu <dengcheng.zhu@...tec.com>,
<linux-kernel@...r.kernel.org>,
Markos Chandras <markos.chandras@...tec.com>,
Andreas Herrmann <andreas.herrmann@...iumnetworks.com>
Subject: [PATCH v5 36/37] MIPS: ingenic: initial JZ4780 support
Support the Ingenic JZ4780 SoC using the existing code under
arch/mips/jz4740 now that it has been generalised sufficiently.
Signed-off-by: Paul Burton <paul.burton@...tec.com>
Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
Cc: Kumar Gala <galak@...eaurora.org>
Cc: Lars-Peter Clausen <lars@...afoo.de>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Pawel Moll <pawel.moll@....com>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: linux-mips@...ux-mips.org
---
Changes in v5:
- Disable the UARTs by default, so that devices can enable only the ones
they actually expose.
Changes in v4: None
Changes in v3:
- Rebase, dropping serial.h & relocating behind CONFIG_MACH_INGENIC.
Changes in v2: None
arch/mips/boot/dts/ingenic/jz4780.dtsi | 111 +++++++++++++++++++++
arch/mips/include/asm/cpu-type.h | 2 +-
.../asm/mach-jz4740/cpu-feature-overrides.h | 3 -
arch/mips/include/asm/mach-jz4740/irq.h | 4 +
arch/mips/jz4740/Kconfig | 6 ++
arch/mips/jz4740/Makefile | 4 +-
arch/mips/jz4740/setup.c | 3 +
arch/mips/jz4740/time.c | 7 +-
8 files changed, 134 insertions(+), 6 deletions(-)
create mode 100644 arch/mips/boot/dts/ingenic/jz4780.dtsi
diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
new file mode 100644
index 0000000..65389f6
--- /dev/null
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -0,0 +1,111 @@
+#include <dt-bindings/clock/jz4780-cgu.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ingenic,jz4780";
+
+ cpuintc: interrupt-controller {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "mti,cpu-interrupt-controller";
+ };
+
+ intc: interrupt-controller@...01000 {
+ compatible = "ingenic,jz4780-intc";
+ reg = <0x10001000 0x50>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ };
+
+ ext: ext {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ };
+
+ rtc: rtc {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
+
+ cgu: jz4780-cgu@...00000 {
+ compatible = "ingenic,jz4780-cgu";
+ reg = <0x10000000 0x100>;
+
+ clocks = <&ext>, <&rtc>;
+ clock-names = "ext", "rtc";
+
+ #clock-cells = <1>;
+ };
+
+ uart0: serial@...30000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10030000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <51>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART0>;
+ clock-names = "baud", "module";
+
+ status = "disabled";
+ };
+
+ uart1: serial@...31000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10031000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <50>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART1>;
+ clock-names = "baud", "module";
+
+ status = "disabled";
+ };
+
+ uart2: serial@...32000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10032000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <49>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
+ clock-names = "baud", "module";
+
+ status = "disabled";
+ };
+
+ uart3: serial@...33000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10033000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <48>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART3>;
+ clock-names = "baud", "module";
+
+ status = "disabled";
+ };
+
+ uart4: serial@...34000 {
+ compatible = "ingenic,jz4780-uart";
+ reg = <0x10034000 0x100>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <34>;
+
+ clocks = <&ext>, <&cgu JZ4780_CLK_UART4>;
+ clock-names = "baud", "module";
+
+ status = "disabled";
+ };
+};
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index 33f3cab..d41e8e2 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -32,12 +32,12 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_4KC:
case CPU_ALCHEMY:
case CPU_PR4450:
- case CPU_JZRISC:
#endif
#if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \
defined(CONFIG_SYS_HAS_CPU_MIPS32_R2)
case CPU_4KEC:
+ case CPU_JZRISC:
#endif
#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2
diff --git a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
index a225baa..0933f94 100644
--- a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
@@ -12,8 +12,6 @@
#define cpu_has_3k_cache 0
#define cpu_has_4k_cache 1
#define cpu_has_tx39_cache 0
-#define cpu_has_fpu 0
-#define cpu_has_32fpr 0
#define cpu_has_counter 0
#define cpu_has_watch 1
#define cpu_has_divec 1
@@ -34,7 +32,6 @@
#define cpu_has_ic_fills_f_dc 0
#define cpu_has_pindexed_dcache 0
#define cpu_has_mips32r1 1
-#define cpu_has_mips32r2 0
#define cpu_has_mips64r1 0
#define cpu_has_mips64r2 0
#define cpu_has_dsp 0
diff --git a/arch/mips/include/asm/mach-jz4740/irq.h b/arch/mips/include/asm/mach-jz4740/irq.h
index b218f76..9b439fc 100644
--- a/arch/mips/include/asm/mach-jz4740/irq.h
+++ b/arch/mips/include/asm/mach-jz4740/irq.h
@@ -21,6 +21,8 @@
#ifdef CONFIG_MACH_JZ4740
# define NR_INTC_IRQS 32
+#else
+# define NR_INTC_IRQS 64
#endif
/* 1st-level interrupts */
@@ -48,6 +50,8 @@
#define JZ4740_IRQ_IPU JZ4740_IRQ(29)
#define JZ4740_IRQ_LCD JZ4740_IRQ(30)
+#define JZ4780_IRQ_TCU2 JZ4740_IRQ(25)
+
/* 2nd-level interrupts */
#define JZ4740_IRQ_DMA(x) (JZ4740_IRQ(NR_INTC_IRQS) + (x))
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
index dff0966..21adcea 100644
--- a/arch/mips/jz4740/Kconfig
+++ b/arch/mips/jz4740/Kconfig
@@ -12,3 +12,9 @@ endchoice
config MACH_JZ4740
bool
select SYS_HAS_CPU_MIPS32_R1
+
+config MACH_JZ4780
+ bool
+ select MIPS_CPU_SCACHE
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_HIGHMEM
diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
index 89ce401..39d70bd 100644
--- a/arch/mips/jz4740/Makefile
+++ b/arch/mips/jz4740/Makefile
@@ -5,7 +5,9 @@
# Object file lists.
obj-y += prom.o time.o reset.o setup.o \
- gpio.o platform.o timer.o
+ platform.o timer.o
+
+obj-$(CONFIG_MACH_JZ4740) += gpio.o
CFLAGS_setup.o = -I$(src)/../../../scripts/dtc/libfdt
diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c
index 1bed3cb..510fc0d 100644
--- a/arch/mips/jz4740/setup.c
+++ b/arch/mips/jz4740/setup.c
@@ -83,6 +83,9 @@ arch_initcall(populate_machine);
const char *get_system_type(void)
{
+ if (config_enabled(CONFIG_MACH_JZ4780))
+ return "JZ4780";
+
return "JZ4740";
}
diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c
index 9172553..7ab47fe 100644
--- a/arch/mips/jz4740/time.c
+++ b/arch/mips/jz4740/time.c
@@ -102,7 +102,12 @@ static struct clock_event_device jz4740_clockevent = {
.set_next_event = jz4740_clockevent_set_next,
.set_mode = jz4740_clockevent_set_mode,
.rating = 200,
+#ifdef CONFIG_MACH_JZ4740
.irq = JZ4740_IRQ_TCU0,
+#endif
+#ifdef CONFIG_MACH_JZ4780
+ .irq = JZ4780_IRQ_TCU2,
+#endif
};
static struct irqaction timer_irqaction = {
@@ -144,7 +149,7 @@ void __init plat_time_init(void)
sched_clock_register(jz4740_read_sched_clock, 16, clk_rate);
- setup_irq(JZ4740_IRQ_TCU0, &timer_irqaction);
+ setup_irq(jz4740_clockevent.irq, &timer_irqaction);
ctrl = JZ_TIMER_CTRL_PRESCALE_16 | JZ_TIMER_CTRL_SRC_EXT;
--
2.4.1
--
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