| /* |
| * Emma Mobile EV2 processor support |
| * |
| * Copyright (C) 2012 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/kernel.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/irq.h> |
| #include <linux/platform_device.h> |
| #include <linux/platform_data/gpio-em.h> |
| #include <linux/of_platform.h> |
| #include <linux/delay.h> |
| #include <linux/input.h> |
| #include <linux/io.h> |
| #include <linux/irqchip/arm-gic.h> |
| #include <mach/hardware.h> |
| #include <mach/common.h> |
| #include <mach/emev2.h> |
| #include <mach/irqs.h> |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/time.h> |
| |
| static struct map_desc emev2_io_desc[] __initdata = { |
| #ifdef CONFIG_SMP |
| /* 2M mapping for SCU + L2 controller */ |
| { |
| .virtual = 0xf0000000, |
| .pfn = __phys_to_pfn(0x1e000000), |
| .length = SZ_2M, |
| .type = MT_DEVICE |
| }, |
| #endif |
| }; |
| |
| void __init emev2_map_io(void) |
| { |
| iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); |
| } |
| |
| /* UART */ |
| static struct resource uart0_resources[] = { |
| DEFINE_RES_MEM(0xe1020000, 0x38), |
| DEFINE_RES_IRQ(40), |
| }; |
| |
| static struct resource uart1_resources[] = { |
| DEFINE_RES_MEM(0xe1030000, 0x38), |
| DEFINE_RES_IRQ(41), |
| }; |
| |
| static struct resource uart2_resources[] = { |
| DEFINE_RES_MEM(0xe1040000, 0x38), |
| DEFINE_RES_IRQ(42), |
| }; |
| |
| static struct resource uart3_resources[] = { |
| DEFINE_RES_MEM(0xe1050000, 0x38), |
| DEFINE_RES_IRQ(43), |
| }; |
| |
| #define emev2_register_uart(idx) \ |
| platform_device_register_simple("serial8250-em", idx, \ |
| uart##idx##_resources, \ |
| ARRAY_SIZE(uart##idx##_resources)) |
| |
| /* STI */ |
| static struct resource sti_resources[] = { |
| DEFINE_RES_MEM(0xe0180000, 0x54), |
| DEFINE_RES_IRQ(157), |
| }; |
| |
| #define emev2_register_sti() \ |
| platform_device_register_simple("em_sti", 0, \ |
| sti_resources, \ |
| ARRAY_SIZE(sti_resources)) |
| |
| /* GIO */ |
| static struct gpio_em_config gio0_config = { |
| .gpio_base = 0, |
| .irq_base = EMEV2_GPIO_IRQ(0), |
| .number_of_pins = 32, |
| }; |
| |
| static struct resource gio0_resources[] = { |
| DEFINE_RES_MEM(0xe0050000, 0x2c), |
| DEFINE_RES_MEM(0xe0050040, 0x20), |
| DEFINE_RES_IRQ(99), |
| DEFINE_RES_IRQ(100), |
| }; |
| |
| static struct gpio_em_config gio1_config = { |
| .gpio_base = 32, |
| .irq_base = EMEV2_GPIO_IRQ(32), |
| .number_of_pins = 32, |
| }; |
| |
| static struct resource gio1_resources[] = { |
| DEFINE_RES_MEM(0xe0050080, 0x2c), |
| DEFINE_RES_MEM(0xe00500c0, 0x20), |
| DEFINE_RES_IRQ(101), |
| DEFINE_RES_IRQ(102), |
| }; |
| |
| static struct gpio_em_config gio2_config = { |
| .gpio_base = 64, |
| .irq_base = EMEV2_GPIO_IRQ(64), |
| .number_of_pins = 32, |
| }; |
| |
| static struct resource gio2_resources[] = { |
| DEFINE_RES_MEM(0xe0050100, 0x2c), |
| DEFINE_RES_MEM(0xe0050140, 0x20), |
| DEFINE_RES_IRQ(103), |
| DEFINE_RES_IRQ(104), |
| }; |
| |
| static struct gpio_em_config gio3_config = { |
| .gpio_base = 96, |
| .irq_base = EMEV2_GPIO_IRQ(96), |
| .number_of_pins = 32, |
| }; |
| |
| static struct resource gio3_resources[] = { |
| DEFINE_RES_MEM(0xe0050180, 0x2c), |
| DEFINE_RES_MEM(0xe00501c0, 0x20), |
| DEFINE_RES_IRQ(105), |
| DEFINE_RES_IRQ(106), |
| }; |
| |
| static struct gpio_em_config gio4_config = { |
| .gpio_base = 128, |
| .irq_base = EMEV2_GPIO_IRQ(128), |
| .number_of_pins = 31, |
| }; |
| |
| static struct resource gio4_resources[] = { |
| DEFINE_RES_MEM(0xe0050200, 0x2c), |
| DEFINE_RES_MEM(0xe0050240, 0x20), |
| DEFINE_RES_IRQ(107), |
| DEFINE_RES_IRQ(108), |
| }; |
| |
| #define emev2_register_gio(idx) \ |
| platform_device_register_resndata(&platform_bus, "em_gio", \ |
| idx, gio##idx##_resources, \ |
| ARRAY_SIZE(gio##idx##_resources), \ |
| &gio##idx##_config, \ |
| sizeof(struct gpio_em_config)) |
| |
| static struct resource pmu_resources[] = { |
| DEFINE_RES_IRQ(152), |
| DEFINE_RES_IRQ(153), |
| }; |
| |
| #define emev2_register_pmu() \ |
| platform_device_register_simple("arm-pmu", -1, \ |
| pmu_resources, \ |
| ARRAY_SIZE(pmu_resources)) |
| |
| void __init emev2_add_standard_devices(void) |
| { |
| if (!IS_ENABLED(CONFIG_COMMON_CLK)) |
| emev2_clock_init(); |
| |
| emev2_register_uart(0); |
| emev2_register_uart(1); |
| emev2_register_uart(2); |
| emev2_register_uart(3); |
| emev2_register_sti(); |
| emev2_register_gio(0); |
| emev2_register_gio(1); |
| emev2_register_gio(2); |
| emev2_register_gio(3); |
| emev2_register_gio(4); |
| emev2_register_pmu(); |
| } |
| |
| void __init emev2_init_delay(void) |
| { |
| shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ |
| } |
| |
| #ifdef CONFIG_USE_OF |
| |
| static const char *emev2_boards_compat_dt[] __initdata = { |
| "renesas,emev2", |
| NULL, |
| }; |
| |
| DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") |
| .smp = smp_ops(emev2_smp_ops), |
| .map_io = emev2_map_io, |
| .init_early = emev2_init_delay, |
| .dt_compat = emev2_boards_compat_dt, |
| MACHINE_END |
| |
| #endif /* CONFIG_USE_OF */ |