diff options
| -rw-r--r-- | arch/arm/boot/dts/r8a73a4.dtsi | 55 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/clock-r8a73a4.c | 91 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/r8a73a4.h | 7 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a73a4.c | 50 |
6 files changed, 211 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi new file mode 100644 index 000000000000..72c58c172e9d --- /dev/null +++ b/arch/arm/boot/dts/r8a73a4.dtsi @@ -0,0 +1,55 @@ +/* + * Device Tree Source for the r8a73a4 SoC + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +/include/ "skeleton.dtsi" + +/ { + compatible = "renesas,r8a73a4"; + interrupt-parent = <&gic>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0>; + clock-frequency = <1500000000>; + }; + }; + + gic: interrupt-controller@f1001000 { + compatible = "arm,cortex-a15-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0xf1001000 0x1000>, + <0xf1002000 0x1000>, + <0xf1004000 0x2000>, + <0xf1006000 0x2000>; + interrupts = <1 9 0xf04>; + + gic-cpuif@4 { + compatible = "arm,gic-cpuif"; + cpuif-id = <4>; + cpu = <&cpu0>; + }; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = <1 13 0xf08>, + <1 14 0xf08>, + <1 11 0xf08>, + <1 10 0xf08>; + }; +}; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 75d413c004b6..663d27b39880 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -18,6 +18,13 @@ config ARCH_SH73A0 select SH_CLK_CPG select RENESAS_INTC_IRQPIN +config ARCH_R8A73A4 + bool "R-Mobile APE6 (R8A73A40)" + select ARM_GIC + select CPU_V7 + select ARM_ARCH_TIMER + select SH_CLK_CPG + config ARCH_R8A7740 bool "R-Mobile A1 (R8A77400)" select ARCH_WANT_OPTIONAL_GPIOLIB diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index b646ff4d742a..c5a43ef7cebf 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -8,6 +8,7 @@ obj-y := timer.o console.o clock.o # CPU objects obj-$(CONFIG_ARCH_SH7372) += setup-sh7372.o clock-sh7372.o intc-sh7372.o obj-$(CONFIG_ARCH_SH73A0) += setup-sh73a0.o clock-sh73a0.o intc-sh73a0.o +obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o clock-r8a73a4.o obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o clock-r8a7740.o intc-r8a7740.o obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o clock-emev2.o diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c new file mode 100644 index 000000000000..15d479dbb132 --- /dev/null +++ b/arch/arm/mach-shmobile/clock-r8a73a4.c @@ -0,0 +1,91 @@ +/* + * r8a73a4 clock framework support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/sh_clk.h> +#include <linux/clkdev.h> +#include <mach/common.h> + +#define CPG_BASE 0xe6150000 +#define CPG_LEN 0x270 + +#define MPCKCR 0xe6150080 + +static struct clk_mapping cpg_mapping = { + .phys = CPG_BASE, + .len = CPG_LEN, +}; + +static struct clk extalr_clk = { + .rate = 32768, + .mapping = &cpg_mapping, +}; + +static struct clk extal1_clk = { + .rate = 26000000, + .mapping = &cpg_mapping, +}; + +static struct clk extal2_clk = { + .rate = 48000000, + .mapping = &cpg_mapping, +}; + +static struct clk *main_clks[] = { + &extalr_clk, + &extal1_clk, + &extal2_clk, +}; + +enum { MSTP_NR }; +static struct clk mstp_clks[MSTP_NR] = { +}; + +static struct clk_lookup lookups[] = { +}; + +void __init r8a73a4_clock_init(void) +{ + void __iomem *cpg_base, *reg; + int k, ret = 0; + + /* fix MPCLK to EXTAL2 for now. + * this is needed until more detailed clock topology is supported + */ + cpg_base = ioremap_nocache(CPG_BASE, CPG_LEN); + BUG_ON(!cpg_base); + reg = cpg_base + (MPCKCR - CPG_BASE); + iowrite32(ioread32(reg) | 1 << 7 | 0x0c, reg); /* set CKSEL */ + iounmap(cpg_base); + + for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++) + ret = clk_register(main_clks[k]); + + if (!ret) + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); + + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); + + if (!ret) + shmobile_clk_init(); + else + panic("failed to setup r8a73a4 clocks\n"); +} diff --git a/arch/arm/mach-shmobile/include/mach/r8a73a4.h b/arch/arm/mach-shmobile/include/mach/r8a73a4.h new file mode 100644 index 000000000000..6db3495479d8 --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/r8a73a4.h @@ -0,0 +1,7 @@ +#ifndef __ASM_R8A73A4_H__ +#define __ASM_R8A73A4_H__ + +void r8a73a4_add_standard_devices(void); +void r8a73a4_clock_init(void); + +#endif /* __ASM_R8A73A4_H__ */ diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c new file mode 100644 index 000000000000..69156bce76f7 --- /dev/null +++ b/arch/arm/mach-shmobile/setup-r8a73a4.c @@ -0,0 +1,50 @@ +/* + * r8a73a4 processor support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/irq.h> +#include <linux/irqchip.h> +#include <linux/kernel.h> +#include <linux/of_platform.h> +#include <mach/common.h> +#include <mach/irqs.h> +#include <mach/r8a73a4.h> +#include <asm/mach/arch.h> + +void __init r8a73a4_add_standard_devices(void) +{ +} + +#ifdef CONFIG_USE_OF +void __init r8a73a4_add_standard_devices_dt(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *r8a73a4_boards_compat_dt[] __initdata = { + "renesas,r8a73a4", + NULL, +}; + +DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)") + .init_irq = irqchip_init, + .init_machine = r8a73a4_add_standard_devices_dt, + .init_time = shmobile_timer_init, + .dt_compat = r8a73a4_boards_compat_dt, +MACHINE_END +#endif /* CONFIG_USE_OF */ |