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 <mach/common.h> 26 #include <mach/irqs.h> 27 #include <mach/r7s72100.h> 28 #include <asm/mach/arch.h> 29 30 #define SCIF_DATA(index, baseaddr, irq) \ 31 [index] = { \ 32 .type = PORT_SCIF, \ 33 .regtype = SCIx_SH2_SCIF_FIFODATA_REGTYPE, \ 34 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ 35 .scbrr_algo_id = SCBRR_ALGO_2, \ 36 .scscr = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \ 37 SCSCR_REIE, \ 38 .mapbase = baseaddr, \ 39 .irqs = { irq + 1, irq + 2, irq + 3, irq }, \ 40 } 41 42 enum { SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5, SCIF6, SCIF7 }; 43 44 static const struct plat_sci_port scif[] __initconst = { 45 SCIF_DATA(SCIF0, 0xe8007000, gic_iid(221)), /* SCIF0 */ 46 SCIF_DATA(SCIF1, 0xe8007800, gic_iid(225)), /* SCIF1 */ 47 SCIF_DATA(SCIF2, 0xe8008000, gic_iid(229)), /* SCIF2 */ 48 SCIF_DATA(SCIF3, 0xe8008800, gic_iid(233)), /* SCIF3 */ 49 SCIF_DATA(SCIF4, 0xe8009000, gic_iid(237)), /* SCIF4 */ 50 SCIF_DATA(SCIF5, 0xe8009800, gic_iid(241)), /* SCIF5 */ 51 SCIF_DATA(SCIF6, 0xe800a000, gic_iid(245)), /* SCIF6 */ 52 SCIF_DATA(SCIF7, 0xe800a800, gic_iid(249)), /* SCIF7 */ 53 }; 54 55 static inline void r7s72100_register_scif(int idx) 56 { 57 platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx], 58 sizeof(struct plat_sci_port)); 59 } 60 61 void __init r7s72100_add_dt_devices(void) 62 { 63 r7s72100_register_scif(SCIF0); 64 r7s72100_register_scif(SCIF1); 65 r7s72100_register_scif(SCIF2); 66 r7s72100_register_scif(SCIF3); 67 r7s72100_register_scif(SCIF4); 68 r7s72100_register_scif(SCIF5); 69 r7s72100_register_scif(SCIF6); 70 r7s72100_register_scif(SCIF7); 71 } 72 73 void __init r7s72100_init_early(void) 74 { 75 shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */ 76 } 77 78 #ifdef CONFIG_USE_OF 79 static const char *r7s72100_boards_compat_dt[] __initdata = { 80 "renesas,r7s72100", 81 NULL, 82 }; 83 84 DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)") 85 .init_early = r7s72100_init_early, 86 .dt_compat = r7s72100_boards_compat_dt, 87 MACHINE_END 88 #endif /* CONFIG_USE_OF */ 89