9 files changed, 388 insertions, 58 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 2fd88437348b..c71e39ed092f 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -163,6 +163,11 @@ config MACH_CPUAT91
           Select this if you are using the Eukrea Electromatique's
           CPUAT91 board <http://www.eukrea.com/>.
 
+config MACH_ECO920
+        bool "eco920"
+        help
+          Select this if you are using the eco920 board
+
 endif
 
 # ----------------------------------------------------------
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index ada440aab0c5..709fbad4a3ee 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_MACH_PICOTUX2XX)	+= board-picotux200.o
 obj-$(CONFIG_MACH_ECBAT91)      += board-ecbat91.o
 obj-$(CONFIG_MACH_YL9200)       += board-yl-9200.o
 obj-$(CONFIG_MACH_CPUAT91)      += board-cpuat91.o
+obj-$(CONFIG_MACH_ECO920)       += board-eco920.o
 
 # AT91SAM9260 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o
@@ -77,6 +78,7 @@ obj-y				+= leds.o
 # Power Management
 obj-$(CONFIG_PM)                += pm.o
 obj-$(CONFIG_AT91_SLOW_CLOCK)   += pm_slowclock.o
+obj-$(CONFIG_CPU_IDLE)  += cpuidle.o
 
 ifeq ($(CONFIG_PM_DEBUG),y)
 CFLAGS_pm.o += -DDEBUG
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 332b784050b2..a57af3e99c7c 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -131,6 +131,62 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) {}
 
 
 /* --------------------------------------------------------------------
+ *  USB Host HS (EHCI)
+ *  Needs an OHCI host for low and full speed management
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
+static u64 ehci_dmamask = DMA_BIT_MASK(32);
+static struct at91_usbh_data usbh_ehci_data;
+
+static struct resource usbh_ehci_resources[] = {
+        [0] = {
+                .start  = AT91SAM9G45_EHCI_BASE,
+                .end    = AT91SAM9G45_EHCI_BASE + SZ_1M - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = AT91SAM9G45_ID_UHPHS,
+                .end    = AT91SAM9G45_ID_UHPHS,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device at91_usbh_ehci_device = {
+        .name           = "atmel-ehci",
+        .id             = -1,
+        .dev            = {
+                                .dma_mask               = &ehci_dmamask,
+                                .coherent_dma_mask      = DMA_BIT_MASK(32),
+                                .platform_data          = &usbh_ehci_data,
+        },
+        .resource       = usbh_ehci_resources,
+        .num_resources  = ARRAY_SIZE(usbh_ehci_resources),
+};
+
+void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
+{
+        int i;
+
+        if (!data)
+                return;
+
+        /* Enable VBus control for UHP ports */
+        for (i = 0; i < data->ports; i++) {
+                if (data->vbus_pin[i])
+                        at91_set_gpio_output(data->vbus_pin[i], 0);
+        }
+
+        usbh_ehci_data = *data;
+        at91_clock_associate("uhphs_clk", &at91_usbh_ehci_device.dev, "ehci_clk");
+        platform_device_register(&at91_usbh_ehci_device);
+}
+#else
+void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
  *  USB HS Device (Gadget)
  * -------------------------------------------------------------------- */
 
diff --git a/arch/arm/mach-at91/board-eco920.c b/arch/arm/mach-at91/board-eco920.c
new file mode 100644
index 000000000000..295a96609e71
--- /dev/null
+++ b/arch/arm/mach-at91/board-eco920.c
@@ -0,0 +1,158 @@
+/*
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/board.h>
+#include <mach/at91rm9200_mc.h>
+#include "generic.h"
+
+static void __init eco920_map_io(void)
+{
+        at91rm9200_initialize(18432000, AT91RM9200_PQFP);
+
+        /* Setup the LEDs */
+        at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
+
+        /* DBGU on ttyS0. (Rx & Tx only */
+        at91_register_uart(0, 0, 0);
+
+        /* set serial console to ttyS0 (ie, DBGU) */
+        at91_set_serial_console(0);
+}
+
+static void __init eco920_init_irq(void)
+{
+        at91rm9200_init_interrupts(NULL);
+}
+
+static struct at91_eth_data __initdata eco920_eth_data = {
+        .phy_irq_pin    = AT91_PIN_PC2,
+        .is_rmii        = 1,
+};
+
+static struct at91_usbh_data __initdata eco920_usbh_data = {
+        .ports          = 1,
+};
+
+static struct at91_udc_data __initdata eco920_udc_data = {
+        .vbus_pin       = AT91_PIN_PB12,
+        .pullup_pin     = AT91_PIN_PB13,
+};
+
+static struct at91_mmc_data __initdata eco920_mmc_data = {
+        .slot_b         = 0,
+        .wire4          = 0,
+};
+
+static struct physmap_flash_data eco920_flash_data = {
+        .width  = 2,
+};
+
+static struct resource eco920_flash_resource = {
+        .start          = 0x11000000,
+        .end            = 0x11ffffff,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device eco920_flash = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &eco920_flash_data,
+        },
+        .resource       = &eco920_flash_resource,
+        .num_resources  = 1,
+};
+
+static struct resource at91_beeper_resources[] = {
+        [0] = {
+                .start          = AT91RM9200_BASE_TC3,
+                .end            = AT91RM9200_BASE_TC3 + 0x39,
+                .flags          = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device at91_beeper = {
+        .name           = "at91_beeper",
+        .id             = 0,
+        .resource       = at91_beeper_resources,
+        .num_resources  = ARRAY_SIZE(at91_beeper_resources),
+};
+
+static struct spi_board_info eco920_spi_devices[] = {
+        {       /* CAN controller */
+                .modalias       = "tlv5638",
+                .chip_select    = 3,
+                .max_speed_hz   = 20 * 1000 * 1000,
+                .mode           = SPI_CPHA,
+        },
+};
+
+static void __init eco920_board_init(void)
+{
+        at91_add_device_serial();
+        at91_add_device_eth(&eco920_eth_data);
+        at91_add_device_usbh(&eco920_usbh_data);
+        at91_add_device_udc(&eco920_udc_data);
+
+        at91_add_device_mmc(0, &eco920_mmc_data);
+        platform_device_register(&eco920_flash);
+
+        at91_sys_write(AT91_SMC_CSR(7), AT91_SMC_RWHOLD_(1)
+                                | AT91_SMC_RWSETUP_(1)
+                                | AT91_SMC_DBW_8
+                                | AT91_SMC_WSEN
+                                | AT91_SMC_NWS_(15));
+
+        at91_set_A_periph(AT91_PIN_PC6, 1);
+
+        at91_set_gpio_input(AT91_PIN_PA23, 0);
+        at91_set_deglitch(AT91_PIN_PA23, 1);
+
+/* Initialization of the Static Memory Controller for Chip Select 3 */
+        at91_sys_write(AT91_SMC_CSR(3),
+                AT91_SMC_DBW_16  |      /* 16 bit */
+                AT91_SMC_WSEN    |
+                AT91_SMC_NWS_(5) |      /* wait states */
+                AT91_SMC_TDF_(1)        /* float time */
+        );
+
+        at91_clock_associate("tc3_clk", &at91_beeper.dev, "at91_beeper");
+        at91_set_B_periph(AT91_PIN_PB6, 0);
+        platform_device_register(&at91_beeper);
+
+        at91_add_device_spi(eco920_spi_devices, ARRAY_SIZE(eco920_spi_devices));
+}
+
+MACHINE_START(ECO920, "eco920")
+        /* Maintainer: Sascha Hauer */
+        .phys_io        = AT91_BASE_SYS,
+        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+        .boot_params    = AT91_SDRAM_BASE + 0x100,
+        .timer          = &at91rm9200_timer,
+        .map_io         = eco920_map_io,
+        .init_irq       = eco920_init_irq,
+        .init_machine   = eco920_board_init,
+MACHINE_END
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index 64c3843f323d..1cf4d8681078 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -366,6 +366,7 @@ static void __init ek_board_init(void)
         at91_add_device_serial();
         /* USB HS Host */
         at91_add_device_usbh_ohci(&ek_usbh_hs_data);
+        at91_add_device_usbh_ehci(&ek_usbh_hs_data);
         /* USB HS Device */
         at91_add_device_usba(&ek_usba_udc_data);
         /* SPI */
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
new file mode 100644
index 000000000000..1cfeac1483d6
--- /dev/null
+++ b/arch/arm/mach-at91/cpuidle.c
@@ -0,0 +1,94 @@
+/*
+ * based on arch/arm/mach-kirkwood/cpuidle.c
+ *
+ * CPU idle support for AT91 SoC
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * The cpu idle uses wait-for-interrupt and RAM self refresh in order
+ * to implement two idle states -
+ * #1 wait-for-interrupt
+ * #2 wait-for-interrupt and RAM self refresh
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/cpuidle.h>
+#include <asm/proc-fns.h>
+#include <linux/io.h>
+
+#include "pm.h"
+
+#define AT91_MAX_STATES 2
+
+static DEFINE_PER_CPU(struct cpuidle_device, at91_cpuidle_device);
+
+static struct cpuidle_driver at91_idle_driver = {
+        .name =         "at91_idle",
+        .owner =        THIS_MODULE,
+};
+
+/* Actual code that puts the SoC in different idle states */
+static int at91_enter_idle(struct cpuidle_device *dev,
+                               struct cpuidle_state *state)
+{
+        struct timeval before, after;
+        int idle_time;
+        u32 saved_lpr;
+
+        local_irq_disable();
+        do_gettimeofday(&before);
+        if (state == &dev->states[0])
+                /* Wait for interrupt state */
+                cpu_do_idle();
+        else if (state == &dev->states[1]) {
+                asm("b 1f; .align 5; 1:");
+                asm("mcr p15, 0, r0, c7, c10, 4");      /* drain write buffer */
+                saved_lpr = sdram_selfrefresh_enable();
+                cpu_do_idle();
+                sdram_selfrefresh_disable(saved_lpr);
+        }
+        do_gettimeofday(&after);
+        local_irq_enable();
+        idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
+                        (after.tv_usec - before.tv_usec);
+        return idle_time;
+}
+
+/* Initialize CPU idle by registering the idle states */
+static int at91_init_cpuidle(void)
+{
+        struct cpuidle_device *device;
+
+        cpuidle_register_driver(&at91_idle_driver);
+
+        device = &per_cpu(at91_cpuidle_device, smp_processor_id());
+        device->state_count = AT91_MAX_STATES;
+
+        /* Wait for interrupt state */
+        device->states[0].enter = at91_enter_idle;
+        device->states[0].exit_latency = 1;
+        device->states[0].target_residency = 10000;
+        device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
+        strcpy(device->states[0].name, "WFI");
+        strcpy(device->states[0].desc, "Wait for interrupt");
+
+        /* Wait for interrupt and RAM self refresh state */
+        device->states[1].enter = at91_enter_idle;
+        device->states[1].exit_latency = 10;
+        device->states[1].target_residency = 10000;
+        device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
+        strcpy(device->states[1].name, "RAM_SR");
+        strcpy(device->states[1].desc, "WFI and RAM Self Refresh");
+
+        if (cpuidle_register_device(device)) {
+                printk(KERN_ERR "at91_init_cpuidle: Failed registering\n");
+                return -EIO;
+        }
+        return 0;
+}
+
+device_initcall(at91_init_cpuidle);
diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h
index 2f4fcedc02ba..2295d80dd893 100644
--- a/arch/arm/mach-at91/include/mach/board.h
+++ b/arch/arm/mach-at91/include/mach/board.h
@@ -98,6 +98,7 @@ struct at91_usbh_data {
 };
 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
 extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
+extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
 
  /* NAND / SmartMedia */
 struct atmel_nand_data {
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 4028724d490d..615668986480 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -29,62 +29,7 @@
 #include <mach/cpu.h>
 
 #include "generic.h"
-
-#ifdef CONFIG_ARCH_AT91RM9200
-#include <mach/at91rm9200_mc.h>
-
-/*
- * The AT91RM9200 goes into self-refresh mode with this command, and will
- * terminate self-refresh automatically on the next SDRAM access.
- */
-#define sdram_selfrefresh_enable()      at91_sys_write(AT91_SDRAMC_SRR, 1)
-#define sdram_selfrefresh_disable()     do {} while (0)
-
-#elif defined(CONFIG_ARCH_AT91CAP9)
-#include <mach/at91cap9_ddrsdr.h>
-
-static u32 saved_lpr;
-
-static inline void sdram_selfrefresh_enable(void)
-{
-        u32 lpr;
-
-        saved_lpr = at91_sys_read(AT91_DDRSDRC_LPR);
-
-        lpr = saved_lpr & ~AT91_DDRSDRC_LPCB;
-        at91_sys_write(AT91_DDRSDRC_LPR, lpr | AT91_DDRSDRC_LPCB_SELF_REFRESH);
-}
-
-#define sdram_selfrefresh_disable()     at91_sys_write(AT91_DDRSDRC_LPR, saved_lpr)
-
-#else
-#include <mach/at91sam9_sdramc.h>
-
-#ifdef CONFIG_ARCH_AT91SAM9263
-/*
- * FIXME either or both the SDRAM controllers (EB0, EB1) might be in use;
- * handle those cases both here and in the Suspend-To-RAM support.
- */
-#define AT91_SDRAMC     AT91_SDRAMC0
-#warning Assuming EB1 SDRAM controller is *NOT* used
-#endif
-
-static u32 saved_lpr;
-
-static inline void sdram_selfrefresh_enable(void)
-{
-        u32 lpr;
-
-        saved_lpr = at91_sys_read(AT91_SDRAMC_LPR);
-
-        lpr = saved_lpr & ~AT91_SDRAMC_LPCB;
-        at91_sys_write(AT91_SDRAMC_LPR, lpr | AT91_SDRAMC_LPCB_SELF_REFRESH);
-}
-
-#define sdram_selfrefresh_disable()     at91_sys_write(AT91_SDRAMC_LPR, saved_lpr)
-
-#endif
-
+#include "pm.h"
 
 /*
  * Show the reason for the previous system reset.
@@ -260,6 +205,7 @@ extern u32 at91_slow_clock_sz;
 
 static int at91_pm_enter(suspend_state_t state)
 {
+        u32 saved_lpr;
         at91_gpio_suspend();
         at91_irq_suspend();
 
@@ -315,9 +261,9 @@ static int at91_pm_enter(suspend_state_t state)
                          */
                         asm("b 1f; .align 5; 1:");
                         asm("mcr p15, 0, r0, c7, c10, 4");      /* drain write buffer */
-                        sdram_selfrefresh_enable();
+                        saved_lpr = sdram_selfrefresh_enable();
                         asm("mcr p15, 0, r0, c7, c0, 4");       /* wait for interrupt */
-                        sdram_selfrefresh_disable();
+                        sdram_selfrefresh_disable(saved_lpr);
                         break;
 
                 case PM_SUSPEND_ON:
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
new file mode 100644
index 000000000000..08322c44df1a
--- /dev/null
+++ b/arch/arm/mach-at91/pm.h
@@ -0,0 +1,67 @@
+#ifdef CONFIG_ARCH_AT91RM9200
+#include <mach/at91rm9200_mc.h>
+
+/*
+ * The AT91RM9200 goes into self-refresh mode with this command, and will
+ * terminate self-refresh automatically on the next SDRAM access.
+ *
+ * Self-refresh mode is exited as soon as a memory access is made, but we don't
+ * know for sure when that happens. However, we need to restore the low-power
+ * mode if it was enabled before going idle. Restoring low-power mode while
+ * still in self-refresh is "not recommended", but seems to work.
+ */
+
+static inline u32 sdram_selfrefresh_enable(void)
+{
+        u32 saved_lpr = at91_sys_read(AT91_SDRAMC_LPR);
+
+        at91_sys_write(AT91_SDRAMC_LPR, 0);
+        at91_sys_write(AT91_SDRAMC_SRR, 1);
+        return saved_lpr;
+}
+
+#define sdram_selfrefresh_disable(saved_lpr)    at91_sys_write(AT91_SDRAMC_LPR, saved_lpr)
+
+#elif defined(CONFIG_ARCH_AT91CAP9)
+#include <mach/at91cap9_ddrsdr.h>
+
+
+static inline u32 sdram_selfrefresh_enable(void)
+{
+        u32 saved_lpr, lpr;
+
+        saved_lpr = at91_sys_read(AT91_DDRSDRC_LPR);
+
+        lpr = saved_lpr & ~AT91_DDRSDRC_LPCB;
+        at91_sys_write(AT91_DDRSDRC_LPR, lpr | AT91_DDRSDRC_LPCB_SELF_REFRESH);
+        return saved_lpr;
+}
+
+#define sdram_selfrefresh_disable(saved_lpr)    at91_sys_write(AT91_DDRSDRC_LPR, saved_lpr)
+
+#else
+#include <mach/at91sam9_sdramc.h>
+
+#ifdef CONFIG_ARCH_AT91SAM9263
+/*
+ * FIXME either or both the SDRAM controllers (EB0, EB1) might be in use;
+ * handle those cases both here and in the Suspend-To-RAM support.
+ */
+#define AT91_SDRAMC     AT91_SDRAMC0
+#warning Assuming EB1 SDRAM controller is *NOT* used
+#endif
+
+static inline u32 sdram_selfrefresh_enable(void)
+{
+        u32 saved_lpr, lpr;
+
+        saved_lpr = at91_sys_read(AT91_SDRAMC_LPR);
+
+        lpr = saved_lpr & ~AT91_SDRAMC_LPCB;
+        at91_sys_write(AT91_SDRAMC_LPR, lpr | AT91_SDRAMC_LPCB_SELF_REFRESH);
+        return saved_lpr;
+}
+
+#define sdram_selfrefresh_disable(saved_lpr)    at91_sys_write(AT91_SDRAMC_LPR, saved_lpr)
+
+#endif