diff options
Diffstat (limited to 'arch/arm/mach-shmobile/board-bonito.c')
| -rw-r--r-- | arch/arm/mach-shmobile/board-bonito.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-bonito.c b/arch/arm/mach-shmobile/board-bonito.c new file mode 100644 index 000000000000..901d7457973a --- /dev/null +++ b/arch/arm/mach-shmobile/board-bonito.c @@ -0,0 +1,187 @@ +/* + * bonito board support + * + * Copyright (C) 2011 Renesas Solutions Corp. + * Copyright (C) 2011 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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/gpio.h> +#include <mach/common.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> +#include <asm/hardware/cache-l2x0.h> +#include <mach/r8a7740.h> + +/* + * CS Address device note + *---------------------------------------------------------------- + * 0 0x0000_0000 NOR Flash (64MB) SW12 : bit3 = OFF + * 2 0x0800_0000 ExtNOR (64MB) SW12 : bit3 = OFF + * 4 - + * 5A - + * 5B 0x1600_0000 SRAM (8MB) + * 6 0x1800_0000 FPGA (64K) + * 0x1801_0000 Ether (4KB) + * 0x1801_1000 USB (4KB) + */ + +/* + * SW12 + * + * bit1 bit2 bit3 + *---------------------------------------------------------------------------- + * ON NOR WriteProtect NAND WriteProtect CS0 ExtNOR / CS2 NOR + * OFF NOR Not WriteProtect NAND Not WriteProtect CS0 NOR / CS2 ExtNOR + */ + +/* + * FPGA + */ +#define A1MDSR 0x10E0 +#define BVERR 0x1100 +static u16 bonito_fpga_read(u32 offset) +{ + return __raw_readw(0xf0003000 + offset); +} + +static void bonito_fpga_write(u32 offset, u16 val) +{ + __raw_writew(val, 0xf0003000 + offset); +} + +/* + * devices + */ +static struct platform_device *bonito_devices[] __initdata = { +}; + +/* + * map I/O + */ +static struct map_desc bonito_io_desc[] __initdata = { + /* + * for CPGA/INTC/PFC + * 0xe6000000-0xefffffff -> 0xe6000000-0xefffffff + */ + { + .virtual = 0xe6000000, + .pfn = __phys_to_pfn(0xe6000000), + .length = 160 << 20, + .type = MT_DEVICE_NONSHARED + }, +#ifdef CONFIG_CACHE_L2X0 + /* + * for l2x0_init() + * 0xf0100000-0xf0101000 -> 0xf0002000-0xf0003000 + */ + { + .virtual = 0xf0002000, + .pfn = __phys_to_pfn(0xf0100000), + .length = PAGE_SIZE, + .type = MT_DEVICE_NONSHARED + }, +#endif + /* + * for FPGA (0x1800000-0x19ffffff) + * 0x18000000-0x18002000 -> 0xf0003000-0xf0005000 + */ + { + .virtual = 0xf0003000, + .pfn = __phys_to_pfn(0x18000000), + .length = PAGE_SIZE * 2, + .type = MT_DEVICE_NONSHARED + } +}; + +static void __init bonito_map_io(void) +{ + iotable_init(bonito_io_desc, ARRAY_SIZE(bonito_io_desc)); + + /* setup early devices and console here as well */ + r8a7740_add_early_devices(); + shmobile_setup_console(); +} + +/* + * board init + */ +static void __init bonito_init(void) +{ + u16 val; + + r8a7740_pinmux_init(); + + /* FPGA */ + gpio_request(GPIO_FN_CS5B, NULL); + gpio_request(GPIO_FN_CS6A, NULL); + gpio_request(GPIO_FN_CS5A_PORT105, NULL); + gpio_request(GPIO_FN_IRQ10, NULL); + + val = bonito_fpga_read(BVERR); + pr_info("bonito version: cpu %02x, base %02x\n", + ((val >> 8) & 0xFF), + ((val >> 0) & 0xFF)); + + /* SCIFA5 */ + gpio_request(GPIO_FN_SCIFA5_TXD_PORT91, NULL); + gpio_request(GPIO_FN_SCIFA5_RXD_PORT92, NULL); + +#ifdef CONFIG_CACHE_L2X0 + /* Early BRESP enable, Shared attribute override enable, 32K*8way */ + l2x0_init(__io(0xf0002000), 0x40440000, 0x82000fff); +#endif + + r8a7740_add_standard_devices(); + platform_add_devices(bonito_devices, ARRAY_SIZE(bonito_devices)); +} + +static void __init bonito_timer_init(void) +{ + u16 val; + u8 md_ck = 0; + + /* read MD_CK value */ + val = bonito_fpga_read(A1MDSR); + if (val & (1 << 10)) + md_ck |= MD_CK2; + if (val & (1 << 9)) + md_ck |= MD_CK1; + if (val & (1 << 8)) + md_ck |= MD_CK0; + + r8a7740_clock_init(md_ck); + shmobile_timer.init(); +} + +struct sys_timer bonito_timer = { + .init = bonito_timer_init, +}; + +MACHINE_START(BONITO, "bonito") + .map_io = bonito_map_io, + .init_irq = r8a7740_init_irq, + .handle_irq = shmobile_handle_irq_intc, + .init_machine = bonito_init, + .timer = &bonito_timer, +MACHINE_END |