17f627f03SMagnus Damm /* 27f627f03SMagnus Damm * Emma Mobile EV2 processor support 37f627f03SMagnus Damm * 47f627f03SMagnus Damm * Copyright (C) 2012 Magnus Damm 57f627f03SMagnus Damm * 67f627f03SMagnus Damm * This program is free software; you can redistribute it and/or modify 77f627f03SMagnus Damm * it under the terms of the GNU General Public License as published by 87f627f03SMagnus Damm * the Free Software Foundation; version 2 of the License. 97f627f03SMagnus Damm * 107f627f03SMagnus Damm * This program is distributed in the hope that it will be useful, 117f627f03SMagnus Damm * but WITHOUT ANY WARRANTY; without even the implied warranty of 127f627f03SMagnus Damm * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 137f627f03SMagnus Damm * GNU General Public License for more details. 147f627f03SMagnus Damm * 157f627f03SMagnus Damm * You should have received a copy of the GNU General Public License 167f627f03SMagnus Damm * along with this program; if not, write to the Free Software 177f627f03SMagnus Damm * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 187f627f03SMagnus Damm */ 197f627f03SMagnus Damm #include <linux/kernel.h> 207f627f03SMagnus Damm #include <linux/init.h> 217f627f03SMagnus Damm #include <linux/interrupt.h> 227f627f03SMagnus Damm #include <linux/irq.h> 237f627f03SMagnus Damm #include <linux/platform_device.h> 24088efd92SMagnus Damm #include <linux/platform_data/gpio-em.h> 253d5de271SMagnus Damm #include <linux/of_platform.h> 267f627f03SMagnus Damm #include <linux/delay.h> 277f627f03SMagnus Damm #include <linux/input.h> 287f627f03SMagnus Damm #include <linux/io.h> 29520f7bd7SRob Herring #include <linux/irqchip/arm-gic.h> 307f627f03SMagnus Damm #include <mach/hardware.h> 317f627f03SMagnus Damm #include <mach/common.h> 327f627f03SMagnus Damm #include <mach/emev2.h> 337f627f03SMagnus Damm #include <mach/irqs.h> 347f627f03SMagnus Damm #include <asm/mach-types.h> 357f627f03SMagnus Damm #include <asm/mach/arch.h> 367f627f03SMagnus Damm #include <asm/mach/map.h> 377f627f03SMagnus Damm #include <asm/mach/time.h> 387f627f03SMagnus Damm 39bd5a875dSMagnus Damm static struct map_desc emev2_io_desc[] __initdata = { 40bd5a875dSMagnus Damm #ifdef CONFIG_SMP 41bd5a875dSMagnus Damm /* 128K entity map for 0xe0100000 (SMU) */ 42bd5a875dSMagnus Damm { 43bd5a875dSMagnus Damm .virtual = 0xe0100000, 44bd5a875dSMagnus Damm .pfn = __phys_to_pfn(0xe0100000), 45bd5a875dSMagnus Damm .length = SZ_128K, 46bd5a875dSMagnus Damm .type = MT_DEVICE 47bd5a875dSMagnus Damm }, 48bd5a875dSMagnus Damm /* 2M mapping for SCU + L2 controller */ 49bd5a875dSMagnus Damm { 50bd5a875dSMagnus Damm .virtual = 0xf0000000, 51bd5a875dSMagnus Damm .pfn = __phys_to_pfn(0x1e000000), 52bd5a875dSMagnus Damm .length = SZ_2M, 53bd5a875dSMagnus Damm .type = MT_DEVICE 54bd5a875dSMagnus Damm }, 55bd5a875dSMagnus Damm #endif 56bd5a875dSMagnus Damm }; 57bd5a875dSMagnus Damm 58bd5a875dSMagnus Damm void __init emev2_map_io(void) 59bd5a875dSMagnus Damm { 60bd5a875dSMagnus Damm iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); 61bd5a875dSMagnus Damm } 62bd5a875dSMagnus Damm 637f627f03SMagnus Damm /* UART */ 647f627f03SMagnus Damm static struct resource uart0_resources[] = { 65210e179dSMagnus Damm DEFINE_RES_MEM(0xe1020000, 0x38), 66210e179dSMagnus Damm DEFINE_RES_IRQ(40), 677f627f03SMagnus Damm }; 687f627f03SMagnus Damm 697f627f03SMagnus Damm static struct resource uart1_resources[] = { 70210e179dSMagnus Damm DEFINE_RES_MEM(0xe1030000, 0x38), 71210e179dSMagnus Damm DEFINE_RES_IRQ(41), 727f627f03SMagnus Damm }; 737f627f03SMagnus Damm 747f627f03SMagnus Damm static struct resource uart2_resources[] = { 75210e179dSMagnus Damm DEFINE_RES_MEM(0xe1040000, 0x38), 76210e179dSMagnus Damm DEFINE_RES_IRQ(42), 777f627f03SMagnus Damm }; 787f627f03SMagnus Damm 797f627f03SMagnus Damm static struct resource uart3_resources[] = { 80210e179dSMagnus Damm DEFINE_RES_MEM(0xe1050000, 0x38), 81210e179dSMagnus Damm DEFINE_RES_IRQ(43), 827f627f03SMagnus Damm }; 837f627f03SMagnus Damm 84210e179dSMagnus Damm #define emev2_register_uart(idx) \ 85210e179dSMagnus Damm platform_device_register_simple("serial8250-em", idx, \ 86210e179dSMagnus Damm uart##idx##_resources, \ 87210e179dSMagnus Damm ARRAY_SIZE(uart##idx##_resources)) 887f627f03SMagnus Damm 897f627f03SMagnus Damm /* STI */ 907f627f03SMagnus Damm static struct resource sti_resources[] = { 91210e179dSMagnus Damm DEFINE_RES_MEM(0xe0180000, 0x54), 92210e179dSMagnus Damm DEFINE_RES_IRQ(157), 937f627f03SMagnus Damm }; 947f627f03SMagnus Damm 95210e179dSMagnus Damm #define emev2_register_sti() \ 96210e179dSMagnus Damm platform_device_register_simple("em_sti", 0, \ 97210e179dSMagnus Damm sti_resources, \ 98210e179dSMagnus Damm ARRAY_SIZE(sti_resources)) 99088efd92SMagnus Damm 100088efd92SMagnus Damm /* GIO */ 101088efd92SMagnus Damm static struct gpio_em_config gio0_config = { 102088efd92SMagnus Damm .gpio_base = 0, 103088efd92SMagnus Damm .irq_base = EMEV2_GPIO_IRQ(0), 104088efd92SMagnus Damm .number_of_pins = 32, 105088efd92SMagnus Damm }; 106088efd92SMagnus Damm 107088efd92SMagnus Damm static struct resource gio0_resources[] = { 108210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050000, 0x2c), 109210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050040, 0x20), 110210e179dSMagnus Damm DEFINE_RES_IRQ(99), 111210e179dSMagnus Damm DEFINE_RES_IRQ(100), 112088efd92SMagnus Damm }; 113088efd92SMagnus Damm 114088efd92SMagnus Damm static struct gpio_em_config gio1_config = { 115088efd92SMagnus Damm .gpio_base = 32, 116088efd92SMagnus Damm .irq_base = EMEV2_GPIO_IRQ(32), 117088efd92SMagnus Damm .number_of_pins = 32, 118088efd92SMagnus Damm }; 119088efd92SMagnus Damm 120088efd92SMagnus Damm static struct resource gio1_resources[] = { 121210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050080, 0x2c), 122210e179dSMagnus Damm DEFINE_RES_MEM(0xe00500c0, 0x20), 123210e179dSMagnus Damm DEFINE_RES_IRQ(101), 124210e179dSMagnus Damm DEFINE_RES_IRQ(102), 125088efd92SMagnus Damm }; 126088efd92SMagnus Damm 127088efd92SMagnus Damm static struct gpio_em_config gio2_config = { 128088efd92SMagnus Damm .gpio_base = 64, 129088efd92SMagnus Damm .irq_base = EMEV2_GPIO_IRQ(64), 130088efd92SMagnus Damm .number_of_pins = 32, 131088efd92SMagnus Damm }; 132088efd92SMagnus Damm 133088efd92SMagnus Damm static struct resource gio2_resources[] = { 134210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050100, 0x2c), 135210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050140, 0x20), 136210e179dSMagnus Damm DEFINE_RES_IRQ(103), 137210e179dSMagnus Damm DEFINE_RES_IRQ(104), 138088efd92SMagnus Damm }; 139088efd92SMagnus Damm 140088efd92SMagnus Damm static struct gpio_em_config gio3_config = { 141088efd92SMagnus Damm .gpio_base = 96, 142088efd92SMagnus Damm .irq_base = EMEV2_GPIO_IRQ(96), 143088efd92SMagnus Damm .number_of_pins = 32, 144088efd92SMagnus Damm }; 145088efd92SMagnus Damm 146088efd92SMagnus Damm static struct resource gio3_resources[] = { 147210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050180, 0x2c), 148210e179dSMagnus Damm DEFINE_RES_MEM(0xe00501c0, 0x20), 149210e179dSMagnus Damm DEFINE_RES_IRQ(105), 150210e179dSMagnus Damm DEFINE_RES_IRQ(106), 151088efd92SMagnus Damm }; 152088efd92SMagnus Damm 153088efd92SMagnus Damm static struct gpio_em_config gio4_config = { 154088efd92SMagnus Damm .gpio_base = 128, 155088efd92SMagnus Damm .irq_base = EMEV2_GPIO_IRQ(128), 156088efd92SMagnus Damm .number_of_pins = 31, 157088efd92SMagnus Damm }; 158088efd92SMagnus Damm 159088efd92SMagnus Damm static struct resource gio4_resources[] = { 160210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050200, 0x2c), 161210e179dSMagnus Damm DEFINE_RES_MEM(0xe0050240, 0x20), 162210e179dSMagnus Damm DEFINE_RES_IRQ(107), 163210e179dSMagnus Damm DEFINE_RES_IRQ(108), 164088efd92SMagnus Damm }; 165088efd92SMagnus Damm 166210e179dSMagnus Damm #define emev2_register_gio(idx) \ 167210e179dSMagnus Damm platform_device_register_resndata(&platform_bus, "em_gio", \ 168210e179dSMagnus Damm idx, gio##idx##_resources, \ 169210e179dSMagnus Damm ARRAY_SIZE(gio##idx##_resources), \ 170210e179dSMagnus Damm &gio##idx##_config, \ 171210e179dSMagnus Damm sizeof(struct gpio_em_config)) 172088efd92SMagnus Damm 173e433d444STetsuyuki Kobayashi static struct resource pmu_resources[] = { 174210e179dSMagnus Damm DEFINE_RES_IRQ(152), 175210e179dSMagnus Damm DEFINE_RES_IRQ(153), 176e433d444STetsuyuki Kobayashi }; 177e433d444STetsuyuki Kobayashi 178210e179dSMagnus Damm #define emev2_register_pmu() \ 179210e179dSMagnus Damm platform_device_register_simple("arm-pmu", -1, \ 180210e179dSMagnus Damm pmu_resources, \ 181210e179dSMagnus Damm ARRAY_SIZE(pmu_resources)) 1827f627f03SMagnus Damm 1837f627f03SMagnus Damm void __init emev2_add_standard_devices(void) 1847f627f03SMagnus Damm { 1857f627f03SMagnus Damm emev2_clock_init(); 1867f627f03SMagnus Damm 187210e179dSMagnus Damm emev2_register_uart(0); 188210e179dSMagnus Damm emev2_register_uart(1); 189210e179dSMagnus Damm emev2_register_uart(2); 190210e179dSMagnus Damm emev2_register_uart(3); 191210e179dSMagnus Damm emev2_register_sti(); 192210e179dSMagnus Damm emev2_register_gio(0); 193210e179dSMagnus Damm emev2_register_gio(1); 194210e179dSMagnus Damm emev2_register_gio(2); 195210e179dSMagnus Damm emev2_register_gio(3); 196210e179dSMagnus Damm emev2_register_gio(4); 197210e179dSMagnus Damm emev2_register_pmu(); 1987f627f03SMagnus Damm } 1997f627f03SMagnus Damm 2004146fa88SMagnus Damm void __init emev2_init_delay(void) 2017f627f03SMagnus Damm { 2027f627f03SMagnus Damm shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ 2033d5de271SMagnus Damm } 2043d5de271SMagnus Damm 2057f627f03SMagnus Damm void __init emev2_init_irq(void) 2067f627f03SMagnus Damm { 2077f627f03SMagnus Damm void __iomem *gic_dist_base; 2087f627f03SMagnus Damm void __iomem *gic_cpu_base; 2097f627f03SMagnus Damm 2107f627f03SMagnus Damm /* Static mappings, never released */ 2117f627f03SMagnus Damm gic_dist_base = ioremap(0xe0028000, PAGE_SIZE); 2127f627f03SMagnus Damm gic_cpu_base = ioremap(0xe0020000, PAGE_SIZE); 2137f627f03SMagnus Damm BUG_ON(!gic_dist_base || !gic_cpu_base); 2147f627f03SMagnus Damm 2157f627f03SMagnus Damm /* Use GIC to handle interrupts */ 2167f627f03SMagnus Damm gic_init(0, 29, gic_dist_base, gic_cpu_base); 2177f627f03SMagnus Damm } 2183d5de271SMagnus Damm 2193d5de271SMagnus Damm #ifdef CONFIG_USE_OF 2203d5de271SMagnus Damm 2213d5de271SMagnus Damm static const char *emev2_boards_compat_dt[] __initdata = { 2223d5de271SMagnus Damm "renesas,emev2", 2233d5de271SMagnus Damm NULL, 2243d5de271SMagnus Damm }; 2253d5de271SMagnus Damm 2263d5de271SMagnus Damm DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") 227a62580e5SMarc Zyngier .smp = smp_ops(emev2_smp_ops), 2283d5de271SMagnus Damm .init_early = emev2_init_delay, 2293d5de271SMagnus Damm .nr_irqs = NR_IRQS_LEGACY, 2303d5de271SMagnus Damm .dt_compat = emev2_boards_compat_dt, 2313d5de271SMagnus Damm MACHINE_END 2323d5de271SMagnus Damm 2333d5de271SMagnus Damm #endif /* CONFIG_USE_OF */ 234