diff options
Diffstat (limited to 'arch/arm/mach-shmobile/board-ap4evb.c')
-rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c new file mode 100644 index 00000000000..a0463d92644 --- /dev/null +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -0,0 +1,301 @@ +/* + * AP4EVB board support + * + * Copyright (C) 2010 Magnus Damm + * Copyright (C) 2008 Yoshihiro Shimoda + * + * 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/delay.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/io.h> +#include <linux/smsc911x.h> +#include <linux/gpio.h> +#include <linux/input.h> +#include <linux/input/sh_keysc.h> +#include <mach/common.h> +#include <mach/sh7372.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +/* + * Address Interface BusWidth note + * ------------------------------------------------------------------ + * 0x0000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = ON + * 0x0800_0000 user area - + * 0x1000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = OFF + * 0x1400_0000 Ether (LAN9220) 16bit + * 0x1600_0000 user area - cannot use with NAND + * 0x1800_0000 user area - + * 0x1A00_0000 - + * 0x4000_0000 LPDDR2-SDRAM (POP) 32bit + */ + +/* + * NOR Flash ROM + * + * SW1 | SW2 | SW7 | NOR Flash ROM + * bit1 | bit1 bit2 | bit1 | Memory allocation + * ------+------------+------+------------------ + * OFF | ON OFF | ON | Area 0 + * OFF | ON OFF | OFF | Area 4 + */ + +/* + * NAND Flash ROM + * + * SW1 | SW2 | SW7 | NAND Flash ROM + * bit1 | bit1 bit2 | bit2 | Memory allocation + * ------+------------+------+------------------ + * OFF | ON OFF | ON | FCE 0 + * OFF | ON OFF | OFF | FCE 1 + */ + +/* + * SMSC 9220 + * + * SW1 SMSC 9220 + * ----------------------- + * ON access disable + * OFF access enable + */ + +/* + * KEYSC + * + * SW43 KEYSC + * ------------------------- + * ON enable + * OFF disable + */ + +/* MTD */ +static struct mtd_partition nor_flash_partitions[] = { + { + .name = "loader", + .offset = 0x00000000, + .size = 512 * 1024, + }, + { + .name = "bootenv", + .offset = MTDPART_OFS_APPEND, + .size = 512 * 1024, + }, + { + .name = "kernel_ro", + .offset = MTDPART_OFS_APPEND, + .size = 8 * 1024 * 1024, + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = 8 * 1024 * 1024, + }, + { + .name = "data", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct physmap_flash_data nor_flash_data = { + .width = 2, + .parts = nor_flash_partitions, + .nr_parts = ARRAY_SIZE(nor_flash_partitions), +}; + +static struct resource nor_flash_resources[] = { + [0] = { + .start = 0x00000000, + .end = 0x08000000 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device nor_flash_device = { + .name = "physmap-flash", + .dev = { + .platform_data = &nor_flash_data, + }, + .num_resources = ARRAY_SIZE(nor_flash_resources), + .resource = nor_flash_resources, +}; + +/* SMSC 9220 */ +static struct resource smc911x_resources[] = { + { + .start = 0x14000000, + .end = 0x16000000 - 1, + .flags = IORESOURCE_MEM, + }, { + .start = 6, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + }, +}; + +static struct smsc911x_platform_config smsc911x_info = { + .flags = SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, +}; + +static struct platform_device smc911x_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(smc911x_resources), + .resource = smc911x_resources, + .dev = { + .platform_data = &smsc911x_info, + }, +}; + +/* KEYSC (Needs SW43 set to ON) */ +static struct sh_keysc_info keysc_info = { + .mode = SH_KEYSC_MODE_1, + .scan_timing = 3, + .delay = 2500, + .keycodes = { + KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, + KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, + KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, + KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, + KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, + }, +}; + +static struct resource keysc_resources[] = { + [0] = { + .name = "KEYSC", + .start = 0xe61b0000, + .end = 0xe61b0063, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 79, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device keysc_device = { + .name = "sh_keysc", + .id = 0, /* "keysc0" clock */ + .num_resources = ARRAY_SIZE(keysc_resources), + .resource = keysc_resources, + .dev = { + .platform_data = &keysc_info, + }, +}; + +static struct platform_device *ap4evb_devices[] __initdata = { + &nor_flash_device, + &smc911x_device, + &keysc_device, +}; + +static struct map_desc ap4evb_io_desc[] __initdata = { + /* create a 1:1 entity map for 0xe6xxxxxx + * used by CPGA, INTC and PFC. + */ + { + .virtual = 0xe6000000, + .pfn = __phys_to_pfn(0xe6000000), + .length = 256 << 20, + .type = MT_DEVICE_NONSHARED + }, +}; + +static void __init ap4evb_map_io(void) +{ + iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc)); + + /* setup early devices, clocks and console here as well */ + sh7372_add_early_devices(); + sh7367_clock_init(); /* use g3 clocks for now */ + shmobile_setup_console(); +} + +static void __init ap4evb_init(void) +{ + sh7372_pinmux_init(); + + /* enable SCIFA0 */ + gpio_request(GPIO_FN_SCIFA0_TXD, NULL); + gpio_request(GPIO_FN_SCIFA0_RXD, NULL); + + /* enable SMSC911X */ + gpio_request(GPIO_FN_CS5A, NULL); + gpio_request(GPIO_FN_IRQ6_39, NULL); + + /* enable LED 1 - 4 */ + gpio_request(GPIO_PORT185, NULL); + gpio_request(GPIO_PORT186, NULL); + gpio_request(GPIO_PORT187, NULL); + gpio_request(GPIO_PORT188, NULL); + gpio_direction_output(GPIO_PORT185, 1); + gpio_direction_output(GPIO_PORT186, 1); + gpio_direction_output(GPIO_PORT187, 1); + gpio_direction_output(GPIO_PORT188, 1); + gpio_export(GPIO_PORT185, 0); + gpio_export(GPIO_PORT186, 0); + gpio_export(GPIO_PORT187, 0); + gpio_export(GPIO_PORT188, 0); + + /* enable Debug switch (S6) */ + gpio_request(GPIO_PORT32, NULL); + gpio_request(GPIO_PORT33, NULL); + gpio_request(GPIO_PORT34, NULL); + gpio_request(GPIO_PORT35, NULL); + gpio_direction_input(GPIO_PORT32); + gpio_direction_input(GPIO_PORT33); + gpio_direction_input(GPIO_PORT34); + gpio_direction_input(GPIO_PORT35); + gpio_export(GPIO_PORT32, 0); + gpio_export(GPIO_PORT33, 0); + gpio_export(GPIO_PORT34, 0); + gpio_export(GPIO_PORT35, 0); + + /* enable KEYSC */ + gpio_request(GPIO_FN_KEYOUT0, NULL); + gpio_request(GPIO_FN_KEYOUT1, NULL); + gpio_request(GPIO_FN_KEYOUT2, NULL); + gpio_request(GPIO_FN_KEYOUT3, NULL); + gpio_request(GPIO_FN_KEYOUT4, NULL); + gpio_request(GPIO_FN_KEYIN0_136, NULL); + gpio_request(GPIO_FN_KEYIN1_135, NULL); + gpio_request(GPIO_FN_KEYIN2_134, NULL); + gpio_request(GPIO_FN_KEYIN3_133, NULL); + gpio_request(GPIO_FN_KEYIN4, NULL); + + sh7372_add_standard_devices(); + + platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices)); +} + +MACHINE_START(AP4EVB, "ap4evb") + .phys_io = 0xe6000000, + .io_pg_offst = ((0xe6000000) >> 18) & 0xfffc, + .map_io = ap4evb_map_io, + .init_irq = sh7372_init_irq, + .init_machine = ap4evb_init, + .timer = &shmobile_timer, +MACHINE_END |