2010-02-05 19:14:58 +08:00
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/*
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* AP4EVB board support
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2008 Yoshihiro Shimoda
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/io.h>
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2010-02-17 17:30:14 +08:00
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#include <linux/smsc911x.h>
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#include <linux/gpio.h>
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2010-02-05 19:14:58 +08:00
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#include <mach/common.h>
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2010-02-17 17:30:14 +08:00
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#include <mach/sh7372.h>
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2010-02-05 19:14:58 +08:00
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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2010-02-18 16:58:19 +08:00
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/*
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* Address Interface BusWidth note
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* ------------------------------------------------------------------
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* 0x0000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = ON
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* 0x0800_0000 user area -
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* 0x1000_0000 NOR Flash ROM (MCP) 16bit SW7 : bit1 = OFF
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* 0x1400_0000 Ether (LAN9220) 16bit
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* 0x1600_0000 user area - cannot use with NAND
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* 0x1800_0000 user area -
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* 0x1A00_0000 -
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* 0x4000_0000 LPDDR2-SDRAM (POP) 32bit
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*/
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/*
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* NOR Flash ROM
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*
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* SW1 | SW2 | SW7 | NOR Flash ROM
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* bit1 | bit1 bit2 | bit1 | Memory allocation
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* ------+------------+------+------------------
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* OFF | ON OFF | ON | Area 0
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* OFF | ON OFF | OFF | Area 4
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*/
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/*
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* NAND Flash ROM
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*
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* SW1 | SW2 | SW7 | NAND Flash ROM
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* bit1 | bit1 bit2 | bit2 | Memory allocation
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* ------+------------+------+------------------
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* OFF | ON OFF | ON | FCE 0
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* OFF | ON OFF | OFF | FCE 1
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*/
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/*
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* SMSC 9220
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*
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* SW1 SMSC 9220
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* -----------------------
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* ON access disable
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* OFF access enable
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*/
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2010-02-17 17:30:14 +08:00
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/* MTD */
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2010-02-05 19:14:58 +08:00
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static struct mtd_partition nor_flash_partitions[] = {
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{
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.name = "loader",
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.offset = 0x00000000,
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.size = 512 * 1024,
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},
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{
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.name = "bootenv",
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.offset = MTDPART_OFS_APPEND,
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.size = 512 * 1024,
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},
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{
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.name = "kernel_ro",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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},
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{
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.name = "data",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data nor_flash_data = {
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.width = 2,
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.parts = nor_flash_partitions,
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.nr_parts = ARRAY_SIZE(nor_flash_partitions),
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};
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static struct resource nor_flash_resources[] = {
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[0] = {
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.start = 0x00000000,
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.end = 0x08000000 - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device nor_flash_device = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &nor_flash_data,
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},
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.num_resources = ARRAY_SIZE(nor_flash_resources),
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.resource = nor_flash_resources,
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};
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2010-02-17 17:30:14 +08:00
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/* SMSC 9220 */
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static struct resource smc911x_resources[] = {
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{
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.start = 0x14000000,
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.end = 0x16000000 - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = 6,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct smsc911x_platform_config smsc911x_info = {
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.flags = SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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};
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static struct platform_device smc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(smc911x_resources),
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.resource = smc911x_resources,
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.dev = {
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.platform_data = &smsc911x_info,
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},
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};
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2010-02-05 19:14:58 +08:00
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static struct platform_device *ap4evb_devices[] __initdata = {
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&nor_flash_device,
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2010-02-17 17:30:14 +08:00
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&smc911x_device,
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2010-02-05 19:14:58 +08:00
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};
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static struct map_desc ap4evb_io_desc[] __initdata = {
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/* create a 1:1 entity map for 0xe6xxxxxx
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* used by CPGA, INTC and PFC.
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*/
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{
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.virtual = 0xe6000000,
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.pfn = __phys_to_pfn(0xe6000000),
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.length = 256 << 20,
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.type = MT_DEVICE_NONSHARED
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},
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};
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static void __init ap4evb_map_io(void)
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{
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iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
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2010-02-08 19:02:54 +08:00
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/* setup early devices, clocks and console here as well */
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2010-02-05 19:14:58 +08:00
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sh7372_add_early_devices();
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sh7367_clock_init(); /* use g3 clocks for now */
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2010-02-08 19:02:54 +08:00
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shmobile_setup_console();
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2010-02-05 19:14:58 +08:00
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}
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static void __init ap4evb_init(void)
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{
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2010-02-17 17:30:14 +08:00
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sh7372_pinmux_init();
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2010-02-18 15:44:41 +08:00
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/* enable SCIFA0 */
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gpio_request(GPIO_FN_SCIFA0_TXD, NULL);
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gpio_request(GPIO_FN_SCIFA0_RXD, NULL);
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2010-02-17 17:30:14 +08:00
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/* enable SMSC911X */
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gpio_request(GPIO_FN_CS5A, NULL);
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gpio_request(GPIO_FN_IRQ6_39, NULL);
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2010-02-22 17:20:39 +08:00
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/* enable LED 1 - 4 */
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gpio_request(GPIO_PORT185, NULL);
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gpio_request(GPIO_PORT186, NULL);
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gpio_request(GPIO_PORT187, NULL);
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gpio_request(GPIO_PORT188, NULL);
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gpio_direction_output(GPIO_PORT185, 1);
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gpio_direction_output(GPIO_PORT186, 1);
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gpio_direction_output(GPIO_PORT187, 1);
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gpio_direction_output(GPIO_PORT188, 1);
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gpio_export(GPIO_PORT185, 0);
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gpio_export(GPIO_PORT186, 0);
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gpio_export(GPIO_PORT187, 0);
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gpio_export(GPIO_PORT188, 0);
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2010-02-05 19:14:58 +08:00
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sh7372_add_standard_devices();
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platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
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}
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MACHINE_START(AP4EVB, "ap4evb")
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.phys_io = 0xe6000000,
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.io_pg_offst = ((0xe6000000) >> 18) & 0xfffc,
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.map_io = ap4evb_map_io,
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.init_irq = sh7372_init_irq,
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.init_machine = ap4evb_init,
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.timer = &shmobile_timer,
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MACHINE_END
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