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linux/arch/arm/mach-shmobile/board-g3evm.c
Magnus Damm 5917bfa4c0 ARM: mach-shmobile: use standard 2MiB coherent DMA memory size 
The 158MiB memory area was used to support HD
resolution multimedia workloads using the same
legacy memory allocating solution as on SH.

There are no in-tree kernel dependencies on the
158MiB setting, and future development should
reserve and allocate memory using some other
method like for instance CMA.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
2012-01-02 23:13:54 -05:00

374 lines
9.2 KiB
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/*
* G3EVM 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/mtd/sh_flctl.h>
#include <linux/usb/r8a66597.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/dma-mapping.h>
#include <mach/sh7367.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>
/*
* IrDA
*
* S67: 5bit : ON power
* : 6bit : ON remote control
* OFF IrDA
*/
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,
};
/* USBHS */
static void usb_host_port_power(int port, int power)
{
if (!power) /* only power-on supported for now */
return;
/* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
__raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
}
static struct r8a66597_platdata usb_host_data = {
.on_chip = 1,
.port_power = usb_host_port_power,
};
static struct resource usb_host_resources[] = {
[0] = {
.name = "USBHS",
.start = 0xe6890000,
.end = 0xe68900e5,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0xa20), /* USBHS_USHI0 */
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device usb_host_device = {
.name = "r8a66597_hcd",
.id = 0,
.dev = {
.platform_data = &usb_host_data,
.dma_mask = NULL,
.coherent_dma_mask = 0xffffffff,
},
.num_resources = ARRAY_SIZE(usb_host_resources),
.resource = usb_host_resources,
};
/* KEYSC */
static struct sh_keysc_info keysc_info = {
.mode = SH_KEYSC_MODE_5,
.scan_timing = 3,
.delay = 100,
.keycodes = {
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, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
KEY_WAKEUP, KEY_COFFEE, KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
},
};
static struct resource keysc_resources[] = {
[0] = {
.name = "KEYSC",
.start = 0xe61b0000,
.end = 0xe61b000f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0xbe0), /* KEYSC_KEY */
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device keysc_device = {
.name = "sh_keysc",
.num_resources = ARRAY_SIZE(keysc_resources),
.resource = keysc_resources,
.dev = {
.platform_data = &keysc_info,
},
};
static struct mtd_partition nand_partition_info[] = {
{
.name = "system",
.offset = 0,
.size = 64 * 1024 * 1024,
},
{
.name = "userdata",
.offset = MTDPART_OFS_APPEND,
.size = 128 * 1024 * 1024,
},
{
.name = "cache",
.offset = MTDPART_OFS_APPEND,
.size = 64 * 1024 * 1024,
},
};
static struct resource nand_flash_resources[] = {
[0] = {
.start = 0xe6a30000,
.end = 0xe6a3009b,
.flags = IORESOURCE_MEM,
}
};
static struct sh_flctl_platform_data nand_flash_data = {
.parts = nand_partition_info,
.nr_parts = ARRAY_SIZE(nand_partition_info),
.flcmncr_val = QTSEL_E | FCKSEL_E | TYPESEL_SET | NANWF_E
| SHBUSSEL | SEL_16BIT,
};
static struct platform_device nand_flash_device = {
.name = "sh_flctl",
.resource = nand_flash_resources,
.num_resources = ARRAY_SIZE(nand_flash_resources),
.dev = {
.platform_data = &nand_flash_data,
},
};
static struct resource irda_resources[] = {
[0] = {
.start = 0xE6D00000,
.end = 0xE6D01FD4 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = evt2irq(0x480), /* IRDA */
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device irda_device = {
.name = "sh_irda",
.id = -1,
.resource = irda_resources,
.num_resources = ARRAY_SIZE(irda_resources),
};
static struct platform_device *g3evm_devices[] __initdata = {
&nor_flash_device,
&usb_host_device,
&keysc_device,
&nand_flash_device,
&irda_device,
};
static struct map_desc g3evm_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 g3evm_map_io(void)
{
iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc));
/* setup early devices and console here as well */
sh7367_add_early_devices();
shmobile_setup_console();
}
static void __init g3evm_init(void)
{
sh7367_pinmux_init();
/* Lit DS4 LED */
gpio_request(GPIO_PORT22, NULL);
gpio_direction_output(GPIO_PORT22, 1);
gpio_export(GPIO_PORT22, 0);
/* Lit DS8 LED */
gpio_request(GPIO_PORT23, NULL);
gpio_direction_output(GPIO_PORT23, 1);
gpio_export(GPIO_PORT23, 0);
/* Lit DS3 LED */
gpio_request(GPIO_PORT24, NULL);
gpio_direction_output(GPIO_PORT24, 1);
gpio_export(GPIO_PORT24, 0);
/* SCIFA1 */
gpio_request(GPIO_FN_SCIFA1_TXD, NULL);
gpio_request(GPIO_FN_SCIFA1_RXD, NULL);
gpio_request(GPIO_FN_SCIFA1_CTS, NULL);
gpio_request(GPIO_FN_SCIFA1_RTS, NULL);
/* USBHS */
gpio_request(GPIO_FN_VBUS0, NULL);
gpio_request(GPIO_FN_PWEN, NULL);
gpio_request(GPIO_FN_OVCN, NULL);
gpio_request(GPIO_FN_OVCN2, NULL);
gpio_request(GPIO_FN_EXTLP, NULL);
gpio_request(GPIO_FN_IDIN, NULL);
/* setup USB phy */
__raw_writew(0x0300, 0xe605810a); /* USBCR1 */
__raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
__raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
__raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */
/* KEYSC @ CN7 */
gpio_request(GPIO_FN_PORT42_KEYOUT0, NULL);
gpio_request(GPIO_FN_PORT43_KEYOUT1, NULL);
gpio_request(GPIO_FN_PORT44_KEYOUT2, NULL);
gpio_request(GPIO_FN_PORT45_KEYOUT3, NULL);
gpio_request(GPIO_FN_PORT46_KEYOUT4, NULL);
gpio_request(GPIO_FN_PORT47_KEYOUT5, NULL);
gpio_request(GPIO_FN_PORT48_KEYIN0_PU, NULL);
gpio_request(GPIO_FN_PORT49_KEYIN1_PU, NULL);
gpio_request(GPIO_FN_PORT50_KEYIN2_PU, NULL);
gpio_request(GPIO_FN_PORT55_KEYIN3_PU, NULL);
gpio_request(GPIO_FN_PORT56_KEYIN4_PU, NULL);
gpio_request(GPIO_FN_PORT57_KEYIN5_PU, NULL);
gpio_request(GPIO_FN_PORT58_KEYIN6_PU, NULL);
/* FLCTL */
gpio_request(GPIO_FN_FCE0, NULL);
gpio_request(GPIO_FN_D0_ED0_NAF0, NULL);
gpio_request(GPIO_FN_D1_ED1_NAF1, NULL);
gpio_request(GPIO_FN_D2_ED2_NAF2, NULL);
gpio_request(GPIO_FN_D3_ED3_NAF3, NULL);
gpio_request(GPIO_FN_D4_ED4_NAF4, NULL);
gpio_request(GPIO_FN_D5_ED5_NAF5, NULL);
gpio_request(GPIO_FN_D6_ED6_NAF6, NULL);
gpio_request(GPIO_FN_D7_ED7_NAF7, NULL);
gpio_request(GPIO_FN_D8_ED8_NAF8, NULL);
gpio_request(GPIO_FN_D9_ED9_NAF9, NULL);
gpio_request(GPIO_FN_D10_ED10_NAF10, NULL);
gpio_request(GPIO_FN_D11_ED11_NAF11, NULL);
gpio_request(GPIO_FN_D12_ED12_NAF12, NULL);
gpio_request(GPIO_FN_D13_ED13_NAF13, NULL);
gpio_request(GPIO_FN_D14_ED14_NAF14, NULL);
gpio_request(GPIO_FN_D15_ED15_NAF15, NULL);
gpio_request(GPIO_FN_WE0_XWR0_FWE, NULL);
gpio_request(GPIO_FN_FRB, NULL);
/* FOE, FCDE, FSC on dedicated pins */
__raw_writel(__raw_readl(0xe6158048) & ~(1 << 15), 0xe6158048);
/* IrDA */
gpio_request(GPIO_FN_IRDA_OUT, NULL);
gpio_request(GPIO_FN_IRDA_IN, NULL);
gpio_request(GPIO_FN_IRDA_FIRSEL, NULL);
sh7367_add_standard_devices();
platform_add_devices(g3evm_devices, ARRAY_SIZE(g3evm_devices));
}
static void __init g3evm_timer_init(void)
{
sh7367_clock_init();
shmobile_timer.init();
}
static struct sys_timer g3evm_timer = {
.init = g3evm_timer_init,
};
MACHINE_START(G3EVM, "g3evm")
.map_io = g3evm_map_io,
.init_irq = sh7367_init_irq,
.handle_irq = shmobile_handle_irq_intc,
.init_machine = g3evm_init,
.timer = &g3evm_timer,
MACHINE_END
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