diff options
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/Kconfig | 14 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-armadillo800eva-reference.c | 213 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/r8a7740.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/intc-r8a7740.c | 24 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7740.c | 54 |
6 files changed, 278 insertions, 31 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 65e1547678b0..db27e8eef192 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -105,6 +105,20 @@ config MACH_ARMADILLO800EVA select SND_SOC_WM8978 if SND_SIMPLE_CARD select USE_OF +config MACH_ARMADILLO800EVA_REFERENCE + bool "Armadillo-800 EVA board - Reference Device Tree Implementation" + depends on ARCH_R8A7740 + select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR + select SND_SOC_WM8978 if SND_SIMPLE_CARD + select USE_OF + ---help--- + Use reference implementation of Aramdillo800 EVA board support + which makes a greater use of device tree at the expense + of not supporting a number of devices. + + This is intended to aid developers + config MACH_BOCKW bool "BOCK-W platform" depends on ARCH_R8A7778 diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 76f1639c5945..6165a517f580 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_MACH_MARZEN) += board-marzen.o obj-$(CONFIG_MACH_MARZEN_REFERENCE) += board-marzen-reference.o obj-$(CONFIG_MACH_LAGER) += board-lager.o obj-$(CONFIG_MACH_ARMADILLO800EVA) += board-armadillo800eva.o +obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += board-armadillo800eva-reference.o obj-$(CONFIG_MACH_KZM9D) += board-kzm9d.o obj-$(CONFIG_MACH_KZM9G) += board-kzm9g.o obj-$(CONFIG_MACH_KZM9G_REFERENCE) += board-kzm9g-reference.o diff --git a/arch/arm/mach-shmobile/board-armadillo800eva-reference.c b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c new file mode 100644 index 000000000000..03b85fec2ddb --- /dev/null +++ b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c @@ -0,0 +1,213 @@ +/* + * armadillo 800 eva board support + * + * Copyright (C) 2012 Renesas Solutions Corp. + * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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/clk.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/io.h> +#include <linux/pinctrl/machine.h> +#include <mach/common.h> +#include <mach/r8a7740.h> +#include <asm/mach/arch.h> +#include <asm/hardware/cache-l2x0.h> + +/* + * CON1 Camera Module + * CON2 Extension Bus + * CON3 HDMI Output + * CON4 Composite Video Output + * CON5 H-UDI JTAG + * CON6 ARM JTAG + * CON7 SD1 + * CON8 SD2 + * CON9 RTC BackUp + * CON10 Monaural Mic Input + * CON11 Stereo Headphone Output + * CON12 Audio Line Output(L) + * CON13 Audio Line Output(R) + * CON14 AWL13 Module + * CON15 Extension + * CON16 LCD1 + * CON17 LCD2 + * CON19 Power Input + * CON20 USB1 + * CON21 USB2 + * CON22 Serial + * CON23 LAN + * CON24 USB3 + * LED1 Camera LED(Yellow) + * LED2 Power LED (Green) + * ED3-LED6 User LED(Yellow) + * LED7 LAN link LED(Green) + * LED8 LAN activity LED(Yellow) + */ + +/* + * DipSwitch + * + * SW1 + * + * -12345678-+---------------+---------------------------- + * 1 | boot | hermit + * 0 | boot | OS auto boot + * -12345678-+---------------+---------------------------- + * 00 | boot device | eMMC + * 10 | boot device | SDHI0 (CON7) + * 01 | boot device | - + * 11 | boot device | Extension Buss (CS0) + * -12345678-+---------------+---------------------------- + * 0 | Extension Bus | D8-D15 disable, eMMC enable + * 1 | Extension Bus | D8-D15 enable, eMMC disable + * -12345678-+---------------+---------------------------- + * 0 | SDHI1 | COM8 disable, COM14 enable + * 1 | SDHI1 | COM8 enable, COM14 disable + * -12345678-+---------------+---------------------------- + * 0 | USB0 | COM20 enable, COM24 disable + * 1 | USB0 | COM20 disable, COM24 enable + * -12345678-+---------------+---------------------------- + * 00 | JTAG | SH-X2 + * 10 | JTAG | ARM + * 01 | JTAG | - + * 11 | JTAG | Boundary Scan + *-----------+---------------+---------------------------- + */ + +/* + * FSI-WM8978 + * + * this command is required when playback. + * + * # amixer set "Headphone" 50 + * + * this command is required when capture. + * + * # amixer set "Input PGA" 15 + * # amixer set "Left Input Mixer MicP" on + * # amixer set "Left Input Mixer MicN" on + * # amixer set "Right Input Mixer MicN" on + * # amixer set "Right Input Mixer MicP" on + */ + +/* + * USB function + * + * When you use USB Function, + * set SW1.6 ON, and connect cable to CN24. + * + * USBF needs workaround on R8A7740 chip. + * These are a little bit complex. + * see + * usbhsf_power_ctrl() + */ + +static const struct pinctrl_map eva_pinctrl_map[] = { + /* SCIFA1 */ + PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.1", "pfc-r8a7740", + "scifa1_data", "scifa1"), +}; + +static void __init eva_clock_init(void) +{ + struct clk *system = clk_get(NULL, "system_clk"); + struct clk *xtal1 = clk_get(NULL, "extal1"); + struct clk *usb24s = clk_get(NULL, "usb24s"); + struct clk *fsibck = clk_get(NULL, "fsibck"); + + if (IS_ERR(system) || + IS_ERR(xtal1) || + IS_ERR(usb24s) || + IS_ERR(fsibck)) { + pr_err("armadillo800eva board clock init failed\n"); + goto clock_error; + } + + /* armadillo 800 eva extal1 is 24MHz */ + clk_set_rate(xtal1, 24000000); + + /* usb24s use extal1 (= system) clock (= 24MHz) */ + clk_set_parent(usb24s, system); + + /* FSIBCK is 12.288MHz, and it is parent of FSI-B */ + clk_set_rate(fsibck, 12288000); + +clock_error: + if (!IS_ERR(system)) + clk_put(system); + if (!IS_ERR(xtal1)) + clk_put(xtal1); + if (!IS_ERR(usb24s)) + clk_put(usb24s); + if (!IS_ERR(fsibck)) + clk_put(fsibck); +} + +/* + * board init + */ +static void __init eva_init(void) +{ + + r8a7740_clock_init(MD_CK0 | MD_CK2); + eva_clock_init(); + + pinctrl_register_mappings(eva_pinctrl_map, ARRAY_SIZE(eva_pinctrl_map)); + r8a7740_pinmux_init(); + + r8a7740_meram_workaround(); + + /* + * Touchscreen + * TODO: Move reset GPIO over to .dts when we can reference it + */ + gpio_request_one(166, GPIOF_OUT_INIT_HIGH, NULL); /* TP_RST_B */ + +#ifdef CONFIG_CACHE_L2X0 + /* Early BRESP enable, Shared attribute override enable, 32K*8way */ + l2x0_init(IOMEM(0xf0002000), 0x40440000, 0x82000fff); +#endif + + r8a7740_add_standard_devices_dt(); + r8a7740_pm_init(); +} + +#define RESCNT2 IOMEM(0xe6188020) +static void eva_restart(char mode, const char *cmd) +{ + /* Do soft power on reset */ + writel((1 << 31), RESCNT2); +} + +static const char *eva_boards_compat_dt[] __initdata = { + "renesas,armadillo800eva-reference", + NULL, +}; + +DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva-reference") + .map_io = r8a7740_map_io, + .init_early = r8a7740_init_delay, + .init_irq = r8a7740_init_irq_of, + .init_machine = eva_init, + .init_time = shmobile_timer_init, + .init_late = shmobile_init_late, + .dt_compat = eva_boards_compat_dt, + .restart = eva_restart, +MACHINE_END diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h index 9c9a66ccaf6f..b34d19b5ca5c 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7740.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h @@ -45,10 +45,13 @@ enum { }; extern void r8a7740_meram_workaround(void); +extern void r8a7740_init_delay(void); extern void r8a7740_init_irq(void); +extern void r8a7740_init_irq_of(void); extern void r8a7740_map_io(void); extern void r8a7740_add_early_devices(void); extern void r8a7740_add_standard_devices(void); +extern void r8a7740_add_standard_devices_dt(void); extern void r8a7740_clock_init(u8 md_ck); extern void r8a7740_pinmux_init(void); extern void r8a7740_pm_init(void); diff --git a/arch/arm/mach-shmobile/intc-r8a7740.c b/arch/arm/mach-shmobile/intc-r8a7740.c index b741c8409a5a..8871f7717dc8 100644 --- a/arch/arm/mach-shmobile/intc-r8a7740.c +++ b/arch/arm/mach-shmobile/intc-r8a7740.c @@ -20,19 +20,15 @@ #include <linux/init.h> #include <linux/io.h> +#include <linux/irqchip.h> #include <linux/irqchip/arm-gic.h> -void __init r8a7740_init_irq(void) +static void __init r8a7740_init_irq_common(void) { - void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000); - void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000); void __iomem *intc_prio_base = ioremap_nocache(0xe6900010, 0x10); void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10); void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4); - /* initialize the Generic Interrupt Controller PL390 r0p0 */ - gic_init(0, 29, gic_dist_base, gic_cpu_base); - /* route signals to GIC */ iowrite32(0x0, pfc_inta_ctrl); @@ -54,3 +50,19 @@ void __init r8a7740_init_irq(void) iounmap(intc_msk_base); iounmap(pfc_inta_ctrl); } + +void __init r8a7740_init_irq_of(void) +{ + irqchip_init(); + r8a7740_init_irq_common(); +} + +void __init r8a7740_init_irq(void) +{ + void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000); + void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000); + + /* initialize the Generic Interrupt Controller PL390 r0p0 */ + gic_init(0, 29, gic_dist_base, gic_cpu_base); + r8a7740_init_irq_common(); +} diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index 3a6b6fe7b6c0..00c5a707238b 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -517,11 +517,7 @@ static struct platform_device ipmmu_device = { .num_resources = ARRAY_SIZE(ipmmu_resources), }; -static struct platform_device *r8a7740_early_devices[] __initdata = { - &irqpin0_device, - &irqpin1_device, - &irqpin2_device, - &irqpin3_device, +static struct platform_device *r8a7740_devices_dt[] __initdata = { &scif0_device, &scif1_device, &scif2_device, @@ -532,6 +528,13 @@ static struct platform_device *r8a7740_early_devices[] __initdata = { &scif7_device, &scifb_device, &cmt10_device, +}; + +static struct platform_device *r8a7740_early_devices[] __initdata = { + &irqpin0_device, + &irqpin1_device, + &irqpin2_device, + &irqpin3_device, &tmu00_device, &tmu01_device, &tmu02_device, @@ -951,6 +954,8 @@ void __init r8a7740_add_standard_devices(void) /* add devices */ platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); + platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); platform_add_devices(r8a7740_late_devices, ARRAY_SIZE(r8a7740_late_devices)); @@ -972,6 +977,8 @@ void __init r8a7740_add_early_devices(void) { early_platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); + early_platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); /* setup early console here as well */ shmobile_setup_console(); @@ -979,33 +986,29 @@ void __init r8a7740_add_early_devices(void) #ifdef CONFIG_USE_OF -void __init r8a7740_add_early_devices_dt(void) -{ - shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ - - early_platform_add_devices(r8a7740_early_devices, - ARRAY_SIZE(r8a7740_early_devices)); - - /* setup early console here as well */ - shmobile_setup_console(); -} - static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = { { } }; void __init r8a7740_add_standard_devices_dt(void) { - /* clocks are setup late during boot in the case of DT */ - r8a7740_clock_init(0); - - platform_add_devices(r8a7740_early_devices, - ARRAY_SIZE(r8a7740_early_devices)); - + platform_add_devices(r8a7740_devices_dt, + ARRAY_SIZE(r8a7740_devices_dt)); of_platform_populate(NULL, of_default_bus_match_table, r8a7740_auxdata_lookup, NULL); } +void __init r8a7740_init_delay(void) +{ + shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */ +}; + +static void __init r8a7740_generic_init(void) +{ + r8a7740_clock_init(0); + r8a7740_add_standard_devices_dt(); +} + static const char *r8a7740_boards_compat_dt[] __initdata = { "renesas,r8a7740", NULL, @@ -1013,9 +1016,10 @@ static const char *r8a7740_boards_compat_dt[] __initdata = { DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)") .map_io = r8a7740_map_io, - .init_early = r8a7740_add_early_devices_dt, - .init_irq = r8a7740_init_irq, - .init_machine = r8a7740_add_standard_devices_dt, + .init_early = r8a7740_init_delay, + .init_irq = r8a7740_init_irq_of, + .init_machine = r8a7740_generic_init, + .init_time = shmobile_timer_init, .dt_compat = r8a7740_boards_compat_dt, MACHINE_END |