arch/arm/mach-shmobile/board-ag5evm.c

   1 /*
   2  * arch/arm/mach-shmobile/board-ag5evm.c
   3  *
   4  * Copyright (C) 2010  Takashi Yoshii <yoshii.takashi.zj@renesas.com>
   5  * Copyright (C) 2009  Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
   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
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/irq.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/delay.h>
  28 #include <linux/io.h>
  29 #include <linux/dma-mapping.h>
  30 #include <linux/serial_sci.h>
  31 #include <linux/smsc911x.h>
  32 #include <linux/gpio.h>
  33 #include <mach/hardware.h>
  34 #include <mach/sh73a0.h>
  35 #include <mach/common.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/time.h>
  40 #include <asm/hardware/gic.h>
  41 #include <asm/hardware/cache-l2x0.h>
  42 #include <asm/traps.h>
  43
  44 static struct resource smsc9220_resources[] = {
  45         [0] = {
  46                 .start          = 0x14000000,
  47                 .end            = 0x14000000 + SZ_64K - 1,
  48                 .flags          = IORESOURCE_MEM,
  49         },
  50         [1] = {
  51                 .start          = gic_spi(33), /* PINT1 */
  52                 .flags          = IORESOURCE_IRQ,
  53         },
  54 };
  55
  56 static struct smsc911x_platform_config smsc9220_platdata = {
  57         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
  58         .phy_interface  = PHY_INTERFACE_MODE_MII,
  59         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  60         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
  61 };
  62
  63 static struct platform_device eth_device = {
  64         .name           = "smsc911x",
  65         .id             = 0,
  66         .dev  = {
  67                 .platform_data = &smsc9220_platdata,
  68         },
  69         .resource       = smsc9220_resources,
  70         .num_resources  = ARRAY_SIZE(smsc9220_resources),
  71 };
  72
  73 static struct platform_device *ag5evm_devices[] __initdata = {
  74         &eth_device,
  75 };
  76
  77 static struct map_desc ag5evm_io_desc[] __initdata = {
  78         /* create a 1:1 entity map for 0xe6xxxxxx
  79          * used by CPGA, INTC and PFC.
  80          */
  81         {
  82                 .virtual        = 0xe6000000,
  83                 .pfn            = __phys_to_pfn(0xe6000000),
  84                 .length         = 256 << 20,
  85                 .type           = MT_DEVICE_NONSHARED
  86         },
  87 };
  88
  89 static void __init ag5evm_map_io(void)
  90 {
  91         iotable_init(ag5evm_io_desc, ARRAY_SIZE(ag5evm_io_desc));
  92
  93         /* setup early devices and console here as well */
  94         sh73a0_add_early_devices();
  95         shmobile_setup_console();
  96 }
  97
  98 #define PINTC_ADDR      0xe6900000
  99 #define PINTER0A        (PINTC_ADDR + 0xa0)
 100 #define PINTCR0A        (PINTC_ADDR + 0xb0)
 101
 102 void __init ag5evm_init_irq(void)
 103 {
 104         /* setup PINT: enable PINTA2 as active low */
 105         __raw_writel(__raw_readl(PINTER0A) | (1<<29), PINTER0A);
 106         __raw_writew(__raw_readw(PINTCR0A) | (2<<10), PINTCR0A);
 107
 108         gic_dist_init(0, __io(0xf0001000), 29);
 109         gic_cpu_init(0, __io(0xf0000100));
 110 }
 111
 112 #define PORT144CR 0xe6052090
 113 #define PORT145CR 0xe6052091
 114
 115 #define PORT154CR 0xe605209a
 116 #define PORT155CR 0xe605209b
 117 #define PORT156CR 0xe605209c
 118 #define PORT157CR 0xe605209d
 119
 120 #define PORTR159_128DR 0xe6056004
 121
 122 static void __init ag5evm_init(void)
 123 {
 124         sh73a0_pinmux_init();
 125
 126         /* enable SCIFA2 */
 127         gpio_request(GPIO_FN_SCIFA2_TXD1, NULL);
 128         gpio_request(GPIO_FN_SCIFA2_RXD1, NULL);
 129         gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
 130         gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);
 131
 132         /* enable SMSC911X */
 133         gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
 134         gpio_direction_input(GPIO_PORT144);
 135         gpio_request(GPIO_PORT145, NULL); /* RESET */
 136         gpio_direction_output(GPIO_PORT145, 1);
 137
 138 #ifdef CONFIG_CACHE_L2X0
 139         /* Shared attribute override enable, 64K*8way */
 140         l2x0_init(__io(0xf0100000), 0x00460000, 0xc2000fff);
 141 #endif
 142         sh73a0_add_standard_devices();
 143         platform_add_devices(ag5evm_devices, ARRAY_SIZE(ag5evm_devices));
 144 }
 145
 146 static void __init ag5evm_timer_init(void)
 147 {
 148         sh73a0_clock_init();
 149         shmobile_timer.init();
 150         return;
 151 }
 152
 153 struct sys_timer ag5evm_timer = {
 154         .init   = ag5evm_timer_init,
 155 };
 156
 157 MACHINE_START(AG5EVM, "ag5evm")
 158         .map_io         = ag5evm_map_io,
 159         .init_irq       = ag5evm_init_irq,
 160         .init_machine   = ag5evm_init,
 161         .timer          = &ag5evm_timer,
 162 MACHINE_END