diff options
Diffstat (limited to 'arch/arm/mach-shmobile/setup-r8a7790.c')
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7790.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c new file mode 100644 index 00000000000..49de2d56f86 --- /dev/null +++ b/arch/arm/mach-shmobile/setup-r8a7790.c @@ -0,0 +1,150 @@ +/* + * r8a7790 processor support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 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/irq.h> +#include <linux/irqchip.h> +#include <linux/kernel.h> +#include <linux/of_platform.h> +#include <linux/serial_sci.h> +#include <linux/platform_data/irq-renesas-irqc.h> +#include <mach/common.h> +#include <mach/irqs.h> +#include <mach/r8a7790.h> +#include <asm/mach/arch.h> + +static const struct resource pfc_resources[] = { + DEFINE_RES_MEM(0xe6060000, 0x250), + DEFINE_RES_MEM(0xe6050000, 0x5050), +}; + +void __init r8a7790_pinmux_init(void) +{ + platform_device_register_simple("pfc-r8a7790", -1, pfc_resources, + ARRAY_SIZE(pfc_resources)); +} + +#define SCIF_COMMON(scif_type, baseaddr, irq) \ + .type = scif_type, \ + .mapbase = baseaddr, \ + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ + .irqs = SCIx_IRQ_MUXED(irq) + +#define SCIFA_DATA(index, baseaddr, irq) \ +[index] = { \ + SCIF_COMMON(PORT_SCIFA, baseaddr, irq), \ + .scbrr_algo_id = SCBRR_ALGO_4, \ + .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE0, \ +} + +#define SCIFB_DATA(index, baseaddr, irq) \ +[index] = { \ + SCIF_COMMON(PORT_SCIFB, baseaddr, irq), \ + .scbrr_algo_id = SCBRR_ALGO_4, \ + .scscr = SCSCR_RE | SCSCR_TE, \ +} + +#define SCIF_DATA(index, baseaddr, irq) \ +[index] = { \ + SCIF_COMMON(PORT_SCIF, baseaddr, irq), \ + .scbrr_algo_id = SCBRR_ALGO_2, \ + .scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1, \ +} + +enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1 }; + +static const struct plat_sci_port scif[] = { + SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */ + SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */ + SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */ + SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */ + SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */ + SCIFA_DATA(SCIFA2, 0xe6c60000, gic_spi(151)), /* SCIFA2 */ + SCIF_DATA(SCIF0, 0xe6e60000, gic_spi(152)), /* SCIF0 */ + SCIF_DATA(SCIF1, 0xe6e68000, gic_spi(153)), /* SCIF1 */ +}; + +static inline void r8a7790_register_scif(int idx) +{ + platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx], + sizeof(struct plat_sci_port)); +} + +static struct renesas_irqc_config irqc0_data = { + .irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */ +}; + +static struct resource irqc0_resources[] = { + DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */ + DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */ + DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */ + DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */ + DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */ +}; + +#define r8a7790_register_irqc(idx) \ + platform_device_register_resndata(&platform_bus, "renesas_irqc", \ + idx, irqc##idx##_resources, \ + ARRAY_SIZE(irqc##idx##_resources), \ + &irqc##idx##_data, \ + sizeof(struct renesas_irqc_config)) + +void __init r8a7790_add_standard_devices(void) +{ + r8a7790_register_scif(SCIFA0); + r8a7790_register_scif(SCIFA1); + r8a7790_register_scif(SCIFB0); + r8a7790_register_scif(SCIFB1); + r8a7790_register_scif(SCIFB2); + r8a7790_register_scif(SCIFA2); + r8a7790_register_scif(SCIF0); + r8a7790_register_scif(SCIF1); + r8a7790_register_irqc(0); +} + +void __init r8a7790_timer_init(void) +{ + void __iomem *cntcr; + + /* make sure arch timer is started by setting bit 0 of CNTCT */ + cntcr = ioremap(0xe6080000, PAGE_SIZE); + iowrite32(1, cntcr); + iounmap(cntcr); + + shmobile_timer_init(); +} + +#ifdef CONFIG_USE_OF +void __init r8a7790_add_standard_devices_dt(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static const char *r8a7790_boards_compat_dt[] __initdata = { + "renesas,r8a7790", + NULL, +}; + +DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)") + .init_irq = irqchip_init, + .init_machine = r8a7790_add_standard_devices_dt, + .init_time = r8a7790_timer_init, + .dt_compat = r8a7790_boards_compat_dt, +MACHINE_END +#endif /* CONFIG_USE_OF */ |