1 /* 2 * r7s72100 processor support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Copyright (C) 2013 Magnus Damm 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #include <linux/irq.h> 22 #include <linux/kernel.h> 23 #include <linux/of_platform.h> 24 #include <linux/serial_sci.h> 25 #include <linux/sh_timer.h> 26 #include <mach/common.h> 27 #include <mach/irqs.h> 28 #include <mach/r7s72100.h> 29 #include <asm/mach/arch.h> 30 31 #define R7S72100_SCIF(index, baseaddr, irq) \ 32 static const struct plat_sci_port scif##index##_platform_data = { \ 33 .type = PORT_SCIF, \ 34 .regtype = SCIx_SH2_SCIF_FIFODATA_REGTYPE, \ 35 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ 36 .scbrr_algo_id = SCBRR_ALGO_2, \ 37 .scscr = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \ 38 SCSCR_REIE, \ 39 .mapbase = baseaddr, \ 40 .irqs = { irq + 1, irq + 2, irq + 3, irq }, \ 41 } 42 43 R7S72100_SCIF(0, 0xe8007000, gic_iid(221)); 44 R7S72100_SCIF(1, 0xe8007800, gic_iid(225)); 45 R7S72100_SCIF(2, 0xe8008000, gic_iid(229)); 46 R7S72100_SCIF(3, 0xe8008800, gic_iid(233)); 47 R7S72100_SCIF(4, 0xe8009000, gic_iid(237)); 48 R7S72100_SCIF(5, 0xe8009800, gic_iid(241)); 49 R7S72100_SCIF(6, 0xe800a000, gic_iid(245)); 50 R7S72100_SCIF(7, 0xe800a800, gic_iid(249)); 51 52 #define r7s72100_register_scif(index) \ 53 platform_device_register_data(&platform_bus, "sh-sci", index, \ 54 &scif##index##_platform_data, \ 55 sizeof(scif##index##_platform_data)) 56 57 58 static struct sh_timer_config mtu2_0_platform_data __initdata = { 59 .name = "MTU2_0", 60 .timer_bit = 0, 61 .channel_offset = -0x80, 62 .clockevent_rating = 200, 63 }; 64 65 static struct resource mtu2_0_resources[] __initdata = { 66 DEFINE_RES_MEM(0xfcff0300, 0x27), 67 DEFINE_RES_IRQ(gic_iid(139)), /* MTU2 TGI0A */ 68 }; 69 70 #define r7s72100_register_mtu2(idx) \ 71 platform_device_register_resndata(&platform_bus, "sh_mtu2", \ 72 idx, mtu2_##idx##_resources, \ 73 ARRAY_SIZE(mtu2_##idx##_resources), \ 74 &mtu2_##idx##_platform_data, \ 75 sizeof(struct sh_timer_config)) 76 77 void __init r7s72100_add_dt_devices(void) 78 { 79 r7s72100_register_scif(0); 80 r7s72100_register_scif(1); 81 r7s72100_register_scif(2); 82 r7s72100_register_scif(3); 83 r7s72100_register_scif(4); 84 r7s72100_register_scif(5); 85 r7s72100_register_scif(6); 86 r7s72100_register_scif(7); 87 r7s72100_register_mtu2(0); 88 } 89 90 void __init r7s72100_init_early(void) 91 { 92 shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */ 93 } 94 95 #ifdef CONFIG_USE_OF 96 static const char *r7s72100_boards_compat_dt[] __initdata = { 97 "renesas,r7s72100", 98 NULL, 99 }; 100 101 DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)") 102 .init_early = r7s72100_init_early, 103 .dt_compat = r7s72100_boards_compat_dt, 104 MACHINE_END 105 #endif /* CONFIG_USE_OF */ 106