linux/arch/arm/mach-omap2/board-cm-t3517.c
Olof Johansson c8a1ceccf3 Timer clean-up to get us closer to moving timer code to drivers,
and to get rid of CONFIG_OMAP_32K_TIMER and rely on the board
 or devicetree provided timer configuration.
 
 Note that these changes are on top of the recent timer fixes.
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Merge tag 'omap-for-v3.8/cleanup-timer-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

Timer clean-up to get us closer to moving timer code to drivers,
and to get rid of CONFIG_OMAP_32K_TIMER and rely on the board
or devicetree provided timer configuration.

Note that these changes are on top of the recent timer fixes.

By Jon Hunter (32) and others
via Tony Lindgren
* tag 'omap-for-v3.8/cleanup-timer-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (71 commits)
  ARM: OMAP3: cm-t3517: use GPTIMER for system clock
  ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
  ARM: OMAP2+: Fix compiler warning for 32k timer
  ARM: OMAP: Remove unnecessary inclusion of dmtimer.h
  ARM: OMAP: Add platform data header for DMTIMERs
  ARM: OMAP: Remove unnecessary omap_dm_timer structure declaration
  ARM: OMAP2+: Remove unnecessary local variable in timer code
  ARM: OMAP: Don't store timers physical address
  ARM: OMAP: Define omap_dm_timer_prepare function as static
  ARM: OMAP: Clean-up dmtimer reset code
  ARM: OMAP: Remove __omap_dm_timer_set_source function
  ARM: OMAP: Remove unnecessary call to clk_get()
  ARM: OMAP: Add dmtimer interrupt disable function
  ARM: OMAP: Fix spurious interrupts when using timer match feature
  ARM: OMAP: Don't restore DMTIMER interrupt status register
  ARM: OMAP: Don't restore of DMTIMER TISTAT register
  ARM: OMAP: Fix dmtimer reset for timer1
  ARM: OMAP2+: Don't use __omap_dm_timer_reset()
  ARM: OMAP2/3: Define HWMOD software reset status for DMTIMERs
  ARM: OMAP3: Correct HWMOD DMTIMER SYSC register declarations
  ...

Change/change conflict in arch/arm/mach-omap2/board-cm-t3517.c.

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-29 22:30:11 -08:00

303 lines
7.6 KiB
C

/*
* linux/arch/arm/mach-omap2/board-cm-t3517.c
*
* Support for the CompuLab CM-T3517 modules
*
* Copyright (C) 2010 CompuLab, Ltd.
* Author: Igor Grinberg <grinberg@compulab.co.il>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/rtc-v3020.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/can/platform/ti_hecc.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "common.h"
#include <linux/platform_data/mtd-nand-omap2.h>
#include "gpmc.h"
#include "am35xx.h"
#include "mux.h"
#include "control.h"
#include "common-board-devices.h"
#include "am35xx-emac.h"
#include "gpmc-nand.h"
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led cm_t3517_leds[] = {
[0] = {
.gpio = 186,
.name = "cm-t3517:green",
.default_trigger = "heartbeat",
.active_low = 0,
},
};
static struct gpio_led_platform_data cm_t3517_led_pdata = {
.num_leds = ARRAY_SIZE(cm_t3517_leds),
.leds = cm_t3517_leds,
};
static struct platform_device cm_t3517_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &cm_t3517_led_pdata,
},
};
static void __init cm_t3517_init_leds(void)
{
platform_device_register(&cm_t3517_led_device);
}
#else
static inline void cm_t3517_init_leds(void) {}
#endif
#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
static struct resource cm_t3517_hecc_resources[] = {
{
.start = AM35XX_IPSS_HECC_BASE,
.end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = 24 + OMAP_INTC_START,
.flags = IORESOURCE_IRQ,
},
};
static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
.scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
.scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
.hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
.mbx_offset = AM35XX_HECC_MBOX_OFFSET,
.int_line = AM35XX_HECC_INT_LINE,
.version = AM35XX_HECC_VERSION,
};
static struct platform_device cm_t3517_hecc_device = {
.name = "ti_hecc",
.id = 1,
.num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
.resource = cm_t3517_hecc_resources,
.dev = {
.platform_data = &cm_t3517_hecc_pdata,
},
};
static void cm_t3517_init_hecc(void)
{
platform_device_register(&cm_t3517_hecc_device);
}
#else
static inline void cm_t3517_init_hecc(void) {}
#endif
#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
#define RTC_IO_GPIO (153)
#define RTC_WR_GPIO (154)
#define RTC_RD_GPIO (53)
#define RTC_CS_GPIO (163)
#define RTC_CS_EN_GPIO (160)
struct v3020_platform_data cm_t3517_v3020_pdata = {
.use_gpio = 1,
.gpio_cs = RTC_CS_GPIO,
.gpio_wr = RTC_WR_GPIO,
.gpio_rd = RTC_RD_GPIO,
.gpio_io = RTC_IO_GPIO,
};
static struct platform_device cm_t3517_rtc_device = {
.name = "v3020",
.id = -1,
.dev = {
.platform_data = &cm_t3517_v3020_pdata,
}
};
static void __init cm_t3517_init_rtc(void)
{
int err;
err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
"rtc cs en");
if (err) {
pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
return;
}
platform_device_register(&cm_t3517_rtc_device);
}
#else
static inline void cm_t3517_init_rtc(void) {}
#endif
#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
#define HSUSB1_RESET_GPIO (146)
#define HSUSB2_RESET_GPIO (147)
#define USB_HUB_RESET_GPIO (152)
static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
.phy_reset = true,
.reset_gpio_port[0] = HSUSB1_RESET_GPIO,
.reset_gpio_port[1] = HSUSB2_RESET_GPIO,
.reset_gpio_port[2] = -EINVAL,
};
static int __init cm_t3517_init_usbh(void)
{
int err;
err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
"usb hub rst");
if (err) {
pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
} else {
udelay(10);
gpio_set_value(USB_HUB_RESET_GPIO, 1);
msleep(1);
}
usbhs_init(&cm_t3517_ehci_pdata);
return 0;
}
#else
static inline int cm_t3517_init_usbh(void)
{
return 0;
}
#endif
#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
static struct mtd_partition cm_t3517_nand_partitions[] = {
{
.name = "xloader",
.offset = 0, /* Offset = 0x00000 */
.size = 4 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE
},
{
.name = "uboot",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
.size = 15 * NAND_BLOCK_SIZE,
},
{
.name = "uboot environment",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
.size = 2 * NAND_BLOCK_SIZE,
},
{
.name = "linux",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */
.size = 32 * NAND_BLOCK_SIZE,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */
.size = MTDPART_SIZ_FULL,
},
};
static struct omap_nand_platform_data cm_t3517_nand_data = {
.parts = cm_t3517_nand_partitions,
.nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions),
.cs = 0,
};
static void __init cm_t3517_init_nand(void)
{
if (gpmc_nand_init(&cm_t3517_nand_data, NULL) < 0)
pr_err("CM-T3517: NAND initialization failed\n");
}
#else
static inline void cm_t3517_init_nand(void) {}
#endif
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
/* GPIO186 - Green LED */
OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* RTC GPIOs: */
/* IO - GPIO153 */
OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* WR# - GPIO154 */
OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* RD# - GPIO53 */
OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* CS# - GPIO163 */
OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* CS EN - GPIO160 */
OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
/* HSUSB1 RESET */
OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* HSUSB2 RESET */
OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* CM-T3517 USB HUB nRESET */
OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static void __init cm_t3517_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_serial_init();
omap_sdrc_init(NULL, NULL);
cm_t3517_init_leds();
cm_t3517_init_nand();
cm_t3517_init_rtc();
cm_t3517_init_usbh();
cm_t3517_init_hecc();
am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
}
MACHINE_START(CM_T3517, "Compulab CM-T3517")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = am35xx_init_early,
.init_irq = omap3_init_irq,
.handle_irq = omap3_intc_handle_irq,
.init_machine = cm_t3517_init,
.init_late = am35xx_init_late,
.timer = &omap3_gp_timer,
.restart = omap3xxx_restart,
MACHINE_END