CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
+CONFIG_SERIO_AMS_DELTA=y
# CONFIG_GAMEPORT is not set
#
# OMAP Core Type
#
CONFIG_ARCH_OMAP2420=y
-# CONFIG_ARCH_OMAP2430 is not set
+CONFIG_ARCH_OMAP2430=y
CONFIG_ARCH_OMAP3430=y
CONFIG_OMAP_PACKAGE_CBB=y
CONFIG_OMAP_PACKAGE_CUS=y
CONFIG_MACH_OMAP2_TUSB6010=y
CONFIG_MACH_OMAP_H4=y
CONFIG_MACH_OMAP_APOLLON=y
-# CONFIG_MACH_OMAP_2430SDP is not set
+CONFIG_MACH_OMAP_2430SDP=y
CONFIG_MACH_OMAP3_BEAGLE=y
+CONFIG_MACH_DEVKIT8000=y
CONFIG_MACH_OMAP_LDP=y
CONFIG_MACH_OVERO=y
CONFIG_MACH_OMAP3EVM=y
#
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="root=/dev/nfs nfsroot=192.168.0.1:/home/user/buildroot ip=192.168.0.2:192.168.0.1:192.168.0.1:255.255.255.0:tgt:eth0:off rw console=ttyS2,115200n8"
+CONFIG_CMDLINE="root=/dev/mmcblk0p2 rootwait console=ttyS2,115200"
# CONFIG_XIP_KERNEL is not set
CONFIG_KEXEC=y
CONFIG_ATAGS_PROC=y
#
CONFIG_PM=y
CONFIG_PM_DEBUG=y
-CONFIG_PM_VERBOSE=y
+# CONFIG_PM_VERBOSE is not set
CONFIG_CAN_PM_TRACE=y
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
-CONFIG_WATCHDOG_NOWAYOUT=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TPS65010 is not set
-# CONFIG_MENELAUS is not set
+CONFIG_MENELAUS=y
CONFIG_TWL4030_CORE=y
-# CONFIG_TWL4030_POWER is not set
+CONFIG_TWL4030_POWER=y
CONFIG_TWL4030_CODEC=y
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_AB4500_CORE is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
-CONFIG_REGULATOR_FIXED_VOLTAGE=y
+# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_BQ24022 is not set
# CONFIG_REGULATOR_MAX8660 is not set
CONFIG_REGULATOR_TWL4030=y
# CONFIG_REGULATOR_LP3971 is not set
-# CONFIG_REGULATOR_TPS65023 is not set
-# CONFIG_REGULATOR_TPS6507X is not set
+CONFIG_REGULATOR_TPS65023=y
+CONFIG_REGULATOR_TPS6507X=y
# CONFIG_MEDIA_SUPPORT is not set
#
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
-CONFIG_FB_OMAP=y
+# CONFIG_FB_OMAP is not set
CONFIG_FB_OMAP_LCD_VGA=y
-# CONFIG_FB_OMAP_031M3R is not set
-# CONFIG_FB_OMAP_048M3R is not set
-CONFIG_FB_OMAP_079M3R=y
-# CONFIG_FB_OMAP_092M9R is not set
-# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
-# CONFIG_FB_OMAP_LCD_MIPID is not set
-# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
-CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
# CONFIG_OMAP2_DSS is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
-# CONFIG_MMC_OMAP is not set
+CONFIG_MMC_OMAP=y
CONFIG_MMC_OMAP_HS=y
# CONFIG_MMC_AT91 is not set
# CONFIG_MMC_ATMELMCI is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
+CONFIG_RTC_DRV_TWL92330=y
CONFIG_RTC_DRV_TWL4030=y
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
Support for the Amstrad E3 (codename Delta) videophone. Say Y here
if you have such a device.
+config AMS_DELTA_FIQ
+ bool "Fast Interrupt Request (FIQ) support for the E3"
+ depends on MACH_AMS_DELTA
+ select FIQ
+ help
+ Provide a FIQ handler for the E3.
+ This allows for fast handling of interrupts generated
+ by the clock line of the E3 mailboard (or a PS/2 keyboard)
+ connected to the GPIO based external keyboard port.
+
config MACH_OMAP_GENERIC
bool "Generic OMAP board"
depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX)
obj-$(CONFIG_MACH_OMAP_PALMTT) += board-palmtt.o
obj-$(CONFIG_MACH_NOKIA770) += board-nokia770.o
obj-$(CONFIG_MACH_AMS_DELTA) += board-ams-delta.o
+obj-$(CONFIG_AMS_DELTA_FIQ) += ams-delta-fiq.o ams-delta-fiq-handler.o
obj-$(CONFIG_MACH_SX1) += board-sx1.o board-sx1-mmc.o
obj-$(CONFIG_MACH_HERALD) += board-htcherald.o
--- /dev/null
+/*
+ * linux/arch/arm/mach-omap1/ams-delta-fiq-handler.S
+ *
+ * Based on linux/arch/arm/lib/floppydma.S
+ * Renamed and modified to work with 2.6 kernel by Matt Callow
+ * Copyright (C) 1995, 1996 Russell King
+ * Copyright (C) 2004 Pete Trapps
+ * Copyright (C) 2006 Matt Callow
+ * Copyright (C) 2010 Janusz Krzysztofik
+ *
+ * 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.
+ */
+
+#include <linux/linkage.h>
+
+#include <plat/io.h>
+#include <plat/board-ams-delta.h>
+
+#include <mach/ams-delta-fiq.h>
+
+/*
+ * GPIO related definitions, copied from arch/arm/plat-omap/gpio.c.
+ * Unfortunately, those were not placed in a separate header file.
+ */
+#define OMAP1510_GPIO_BASE 0xFFFCE000
+#define OMAP1510_GPIO_DATA_INPUT 0x00
+#define OMAP1510_GPIO_DATA_OUTPUT 0x04
+#define OMAP1510_GPIO_DIR_CONTROL 0x08
+#define OMAP1510_GPIO_INT_CONTROL 0x0c
+#define OMAP1510_GPIO_INT_MASK 0x10
+#define OMAP1510_GPIO_INT_STATUS 0x14
+#define OMAP1510_GPIO_PIN_CONTROL 0x18
+
+/* GPIO register bitmasks */
+#define KEYBRD_DATA_MASK (0x1 << AMS_DELTA_GPIO_PIN_KEYBRD_DATA)
+#define KEYBRD_CLK_MASK (0x1 << AMS_DELTA_GPIO_PIN_KEYBRD_CLK)
+#define MODEM_IRQ_MASK (0x1 << AMS_DELTA_GPIO_PIN_MODEM_IRQ)
+#define HOOK_SWITCH_MASK (0x1 << AMS_DELTA_GPIO_PIN_HOOK_SWITCH)
+#define OTHERS_MASK (MODEM_IRQ_MASK | HOOK_SWITCH_MASK)
+
+/* IRQ handler register bitmasks */
+#define DEFERRED_FIQ_MASK (0x1 << (INT_DEFERRED_FIQ % IH2_BASE))
+#define GPIO_BANK1_MASK (0x1 << INT_GPIO_BANK1)
+
+/* Driver buffer byte offsets */
+#define BUF_MASK (FIQ_MASK * 4)
+#define BUF_STATE (FIQ_STATE * 4)
+#define BUF_KEYS_CNT (FIQ_KEYS_CNT * 4)
+#define BUF_TAIL_OFFSET (FIQ_TAIL_OFFSET * 4)
+#define BUF_HEAD_OFFSET (FIQ_HEAD_OFFSET * 4)
+#define BUF_BUF_LEN (FIQ_BUF_LEN * 4)
+#define BUF_KEY (FIQ_KEY * 4)
+#define BUF_MISSED_KEYS (FIQ_MISSED_KEYS * 4)
+#define BUF_BUFFER_START (FIQ_BUFFER_START * 4)
+#define BUF_GPIO_INT_MASK (FIQ_GPIO_INT_MASK * 4)
+#define BUF_KEYS_HICNT (FIQ_KEYS_HICNT * 4)
+#define BUF_IRQ_PEND (FIQ_IRQ_PEND * 4)
+#define BUF_SIR_CODE_L1 (FIQ_SIR_CODE_L1 * 4)
+#define BUF_SIR_CODE_L2 (IRQ_SIR_CODE_L2 * 4)
+#define BUF_CNT_INT_00 (FIQ_CNT_INT_00 * 4)
+#define BUF_CNT_INT_KEY (FIQ_CNT_INT_KEY * 4)
+#define BUF_CNT_INT_MDM (FIQ_CNT_INT_MDM * 4)
+#define BUF_CNT_INT_03 (FIQ_CNT_INT_03 * 4)
+#define BUF_CNT_INT_HSW (FIQ_CNT_INT_HSW * 4)
+#define BUF_CNT_INT_05 (FIQ_CNT_INT_05 * 4)
+#define BUF_CNT_INT_06 (FIQ_CNT_INT_06 * 4)
+#define BUF_CNT_INT_07 (FIQ_CNT_INT_07 * 4)
+#define BUF_CNT_INT_08 (FIQ_CNT_INT_08 * 4)
+#define BUF_CNT_INT_09 (FIQ_CNT_INT_09 * 4)
+#define BUF_CNT_INT_10 (FIQ_CNT_INT_10 * 4)
+#define BUF_CNT_INT_11 (FIQ_CNT_INT_11 * 4)
+#define BUF_CNT_INT_12 (FIQ_CNT_INT_12 * 4)
+#define BUF_CNT_INT_13 (FIQ_CNT_INT_13 * 4)
+#define BUF_CNT_INT_14 (FIQ_CNT_INT_14 * 4)
+#define BUF_CNT_INT_15 (FIQ_CNT_INT_15 * 4)
+#define BUF_CIRC_BUFF (FIQ_CIRC_BUFF * 4)
+
+
+/*
+ * Register useage
+ * r8 - temporary
+ * r9 - the driver buffer
+ * r10 - temporary
+ * r11 - interrupts mask
+ * r12 - base pointers
+ * r13 - interrupts status
+ */
+
+ .text
+
+ .global qwerty_fiqin_end
+
+ENTRY(qwerty_fiqin_start)
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @ FIQ intrrupt handler
+ ldr r12, omap_ih1_base @ set pointer to level1 handler
+
+ ldr r11, [r12, #IRQ_MIR_REG_OFFSET] @ fetch interrupts mask
+
+ ldr r13, [r12, #IRQ_ITR_REG_OFFSET] @ fetch interrupts status
+ bics r13, r13, r11 @ clear masked - any left?
+ beq exit @ none - spurious FIQ? exit
+
+ ldr r10, [r12, #IRQ_SIR_FIQ_REG_OFFSET] @ get requested interrupt number
+
+ mov r8, #2 @ reset FIQ agreement
+ str r8, [r12, #IRQ_CONTROL_REG_OFFSET]
+
+ cmp r10, #INT_GPIO_BANK1 @ is it GPIO bank interrupt?
+ beq gpio @ yes - process it
+
+ mov r8, #1
+ orr r8, r11, r8, lsl r10 @ mask spurious interrupt
+ str r8, [r12, #IRQ_MIR_REG_OFFSET]
+exit:
+ subs pc, lr, #4 @ return from FIQ
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@
+gpio: @ GPIO bank interrupt handler
+ ldr r12, omap1510_gpio_base @ set base pointer to GPIO bank
+
+ ldr r11, [r12, #OMAP1510_GPIO_INT_MASK] @ fetch GPIO interrupts mask
+restart:
+ ldr r13, [r12, #OMAP1510_GPIO_INT_STATUS] @ fetch status bits
+ bics r13, r13, r11 @ clear masked - any left?
+ beq exit @ no - spurious interrupt? exit
+
+ orr r11, r11, r13 @ mask all requested interrupts
+ str r11, [r12, #OMAP1510_GPIO_INT_MASK]
+
+ ands r10, r13, #KEYBRD_CLK_MASK @ extract keyboard status - set?
+ beq hksw @ no - try next source
+
+
+ @@@@@@@@@@@@@@@@@@@@@@
+ @ Keyboard clock FIQ mode interrupt handler
+ @ r10 now contains KEYBRD_CLK_MASK, use it
+ str r10, [r12, #OMAP1510_GPIO_INT_STATUS] @ ack the interrupt
+ bic r11, r11, r10 @ unmask it
+ str r11, [r12, #OMAP1510_GPIO_INT_MASK]
+
+ @ Process keyboard data
+ ldr r8, [r12, #OMAP1510_GPIO_DATA_INPUT] @ fetch GPIO input
+
+ ldr r10, [r9, #BUF_STATE] @ fetch kbd interface state
+ cmp r10, #0 @ are we expecting start bit?
+ bne data @ no - go to data processing
+
+ ands r8, r8, #KEYBRD_DATA_MASK @ check start bit - detected?
+ beq hksw @ no - try next source
+
+ @ r8 contains KEYBRD_DATA_MASK, use it
+ str r8, [r9, #BUF_STATE] @ enter data processing state
+ @ r10 already contains 0, reuse it
+ str r10, [r9, #BUF_KEY] @ clear keycode
+ mov r10, #2 @ reset input bit mask
+ str r10, [r9, #BUF_MASK]
+
+ @ Mask other GPIO line interrupts till key done
+ str r11, [r9, #BUF_GPIO_INT_MASK] @ save mask for later restore
+ mvn r11, #KEYBRD_CLK_MASK @ prepare all except kbd mask
+ str r11, [r12, #OMAP1510_GPIO_INT_MASK] @ store into the mask register
+
+ b restart @ restart
+
+data: ldr r10, [r9, #BUF_MASK] @ fetch current input bit mask
+
+ @ r8 still contains GPIO input bits
+ ands r8, r8, #KEYBRD_DATA_MASK @ is keyboard data line low?
+ ldreq r8, [r9, #BUF_KEY] @ yes - fetch collected so far,
+ orreq r8, r8, r10 @ set 1 at current mask position
+ streq r8, [r9, #BUF_KEY] @ and save back
+
+ mov r10, r10, lsl #1 @ shift mask left
+ bics r10, r10, #0x800 @ have we got all the bits?
+ strne r10, [r9, #BUF_MASK] @ not yet - store the mask
+ bne restart @ and restart
+
+ @ r10 already contains 0, reuse it
+ str r10, [r9, #BUF_STATE] @ reset state to start
+
+ @ Key done - restore interrupt mask
+ ldr r10, [r9, #BUF_GPIO_INT_MASK] @ fetch saved mask
+ and r11, r11, r10 @ unmask all saved as unmasked
+ str r11, [r12, #OMAP1510_GPIO_INT_MASK] @ restore into the mask register
+
+ @ Try appending the keycode to the circular buffer
+ ldr r10, [r9, #BUF_KEYS_CNT] @ get saved keystrokes count
+ ldr r8, [r9, #BUF_BUF_LEN] @ get buffer size
+ cmp r10, r8 @ is buffer full?
+ beq hksw @ yes - key lost, next source
+
+ add r10, r10, #1 @ incremet keystrokes counter
+ str r10, [r9, #BUF_KEYS_CNT]
+
+ ldr r10, [r9, #BUF_TAIL_OFFSET] @ get buffer tail offset
+ @ r8 already contains buffer size
+ cmp r10, r8 @ end of buffer?
+ moveq r10, #0 @ yes - rewind to buffer start
+
+ ldr r12, [r9, #BUF_BUFFER_START] @ get buffer start address
+ add r12, r12, r10, LSL #2 @ calculate buffer tail address
+ ldr r8, [r9, #BUF_KEY] @ get last keycode
+ str r8, [r12] @ append it to the buffer tail
+
+ add r10, r10, #1 @ increment buffer tail offset
+ str r10, [r9, #BUF_TAIL_OFFSET]
+
+ ldr r10, [r9, #BUF_CNT_INT_KEY] @ increment interrupts counter
+ add r10, r10, #1
+ str r10, [r9, #BUF_CNT_INT_KEY]
+ @@@@@@@@@@@@@@@@@@@@@@@@
+
+
+hksw: @Is hook switch interrupt requested?
+ tst r13, #HOOK_SWITCH_MASK @ is hook switch status bit set?
+ beq mdm @ no - try next source
+
+
+ @@@@@@@@@@@@@@@@@@@@@@@@
+ @ Hook switch interrupt FIQ mode simple handler
+
+ @ Don't toggle active edge, the switch always bounces
+
+ @ Increment hook switch interrupt counter
+ ldr r10, [r9, #BUF_CNT_INT_HSW]
+ add r10, r10, #1
+ str r10, [r9, #BUF_CNT_INT_HSW]
+ @@@@@@@@@@@@@@@@@@@@@@@@
+
+
+mdm: @Is it a modem interrupt?
+ tst r13, #MODEM_IRQ_MASK @ is modem status bit set?
+ beq irq @ no - check for next interrupt
+
+
+ @@@@@@@@@@@@@@@@@@@@@@@@
+ @ Modem FIQ mode interrupt handler stub
+
+ @ Increment modem interrupt counter
+ ldr r10, [r9, #BUF_CNT_INT_MDM]
+ add r10, r10, #1
+ str r10, [r9, #BUF_CNT_INT_MDM]
+ @@@@@@@@@@@@@@@@@@@@@@@@
+
+
+irq: @ Place deferred_fiq interrupt request
+ ldr r12, deferred_fiq_ih_base @ set pointer to IRQ handler
+ mov r10, #DEFERRED_FIQ_MASK @ set deferred_fiq bit
+ str r10, [r12, #IRQ_ISR_REG_OFFSET] @ place it in the ISR register
+
+ ldr r12, omap1510_gpio_base @ set pointer back to GPIO bank
+ b restart @ check for next GPIO interrupt
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@
+
+
+/*
+ * Virtual addresses for IO
+ */
+omap_ih1_base:
+ .word OMAP1_IO_ADDRESS(OMAP_IH1_BASE)
+deferred_fiq_ih_base:
+ .word OMAP1_IO_ADDRESS(DEFERRED_FIQ_IH_BASE)
+omap1510_gpio_base:
+ .word OMAP1_IO_ADDRESS(OMAP1510_GPIO_BASE)
+qwerty_fiqin_end:
+
+/*
+ * Check the size of the FIQ,
+ * it cannot go beyond 0xffff0200, and is copied to 0xffff001c
+ */
+.if (qwerty_fiqin_end - qwerty_fiqin_start) > (0x200 - 0x1c)
+ .err
+.endif
--- /dev/null
+/*
+ * Amstrad E3 FIQ handling
+ *
+ * Copyright (C) 2009 Janusz Krzysztofik
+ * Copyright (c) 2006 Matt Callow
+ * Copyright (c) 2004 Amstrad Plc
+ * Copyright (C) 2001 RidgeRun, Inc.
+ *
+ * Parts of this code are taken from linux/arch/arm/mach-omap/irq.c
+ * in the MontaVista 2.4 kernel (and the Amstrad changes therein)
+ *
+ * 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.
+ */
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/io.h>
+
+#include <plat/board-ams-delta.h>
+
+#include <asm/fiq.h>
+#include <mach/ams-delta-fiq.h>
+
+static struct fiq_handler fh = {
+ .name = "ams-delta-fiq"
+};
+
+/*
+ * This buffer is shared between FIQ and IRQ contexts.
+ * The FIQ and IRQ isrs can both read and write it.
+ * It is structured as a header section several 32bit slots,
+ * followed by the circular buffer where the FIQ isr stores
+ * keystrokes received from the qwerty keyboard.
+ * See ams-delta-fiq.h for details of offsets.
+ */
+unsigned int fiq_buffer[1024];
+EXPORT_SYMBOL(fiq_buffer);
+
+static unsigned int irq_counter[16];
+
+static irqreturn_t deferred_fiq(int irq, void *dev_id)
+{
+ struct irq_desc *irq_desc;
+ struct irq_chip *irq_chip = NULL;
+ int gpio, irq_num, fiq_count;
+
+ irq_desc = irq_to_desc(IH_GPIO_BASE);
+ if (irq_desc)
+ irq_chip = irq_desc->chip;
+
+ /*
+ * For each handled GPIO interrupt, keep calling its interrupt handler
+ * until the IRQ counter catches the FIQ incremented interrupt counter.
+ */
+ for (gpio = AMS_DELTA_GPIO_PIN_KEYBRD_CLK;
+ gpio <= AMS_DELTA_GPIO_PIN_HOOK_SWITCH; gpio++) {
+ irq_num = gpio_to_irq(gpio);
+ fiq_count = fiq_buffer[FIQ_CNT_INT_00 + gpio];
+
+ while (irq_counter[gpio] < fiq_count) {
+ if (gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) {
+ /*
+ * It looks like handle_edge_irq() that
+ * OMAP GPIO edge interrupts default to,
+ * expects interrupt already unmasked.
+ */
+ if (irq_chip && irq_chip->unmask)
+ irq_chip->unmask(irq_num);
+ }
+ generic_handle_irq(irq_num);
+
+ irq_counter[gpio]++;
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+void __init ams_delta_init_fiq(void)
+{
+ void *fiqhandler_start;
+ unsigned int fiqhandler_length;
+ struct pt_regs FIQ_regs;
+ unsigned long val, offset;
+ int i, retval;
+
+ fiqhandler_start = &qwerty_fiqin_start;
+ fiqhandler_length = &qwerty_fiqin_end - &qwerty_fiqin_start;
+ pr_info("Installing fiq handler from %p, length 0x%x\n",
+ fiqhandler_start, fiqhandler_length);
+
+ retval = claim_fiq(&fh);
+ if (retval) {
+ pr_err("ams_delta_init_fiq(): couldn't claim FIQ, ret=%d\n",
+ retval);
+ return;
+ }
+
+ retval = request_irq(INT_DEFERRED_FIQ, deferred_fiq,
+ IRQ_TYPE_EDGE_RISING, "deferred_fiq", 0);
+ if (retval < 0) {
+ pr_err("Failed to get deferred_fiq IRQ, ret=%d\n", retval);
+ release_fiq(&fh);
+ return;
+ }
+ /*
+ * Since no set_type() method is provided by OMAP irq chip,
+ * switch to edge triggered interrupt type manually.
+ */
+ offset = IRQ_ILR0_REG_OFFSET + INT_DEFERRED_FIQ * 0x4;
+ val = omap_readl(DEFERRED_FIQ_IH_BASE + offset) & ~(1 << 1);
+ omap_writel(val, DEFERRED_FIQ_IH_BASE + offset);
+
+ set_fiq_handler(fiqhandler_start, fiqhandler_length);
+
+ /*
+ * Initialise the buffer which is shared
+ * between FIQ mode and IRQ mode
+ */
+ fiq_buffer[FIQ_GPIO_INT_MASK] = 0;
+ fiq_buffer[FIQ_MASK] = 0;
+ fiq_buffer[FIQ_STATE] = 0;
+ fiq_buffer[FIQ_KEY] = 0;
+ fiq_buffer[FIQ_KEYS_CNT] = 0;
+ fiq_buffer[FIQ_KEYS_HICNT] = 0;
+ fiq_buffer[FIQ_TAIL_OFFSET] = 0;
+ fiq_buffer[FIQ_HEAD_OFFSET] = 0;
+ fiq_buffer[FIQ_BUF_LEN] = 256;
+ fiq_buffer[FIQ_MISSED_KEYS] = 0;
+ fiq_buffer[FIQ_BUFFER_START] =
+ (unsigned int) &fiq_buffer[FIQ_CIRC_BUFF];
+
+ for (i = FIQ_CNT_INT_00; i <= FIQ_CNT_INT_15; i++)
+ fiq_buffer[i] = 0;
+
+ /*
+ * FIQ mode r9 always points to the fiq_buffer, becauses the FIQ isr
+ * will run in an unpredictable context. The fiq_buffer is the FIQ isr's
+ * only means of communication with the IRQ level and other kernel
+ * context code.
+ */
+ FIQ_regs.ARM_r9 = (unsigned int)fiq_buffer;
+ set_fiq_regs(&FIQ_regs);
+
+ pr_info("request_fiq(): fiq_buffer = %p\n", fiq_buffer);
+
+ /*
+ * Redirect GPIO interrupts to FIQ
+ */
+ offset = IRQ_ILR0_REG_OFFSET + INT_GPIO_BANK1 * 0x4;
+ val = omap_readl(OMAP_IH1_BASE + offset) | 1;
+ omap_writel(val, OMAP_IH1_BASE + offset);
+}
#include <plat/board.h>
#include <plat/common.h>
+#include <mach/ams-delta-fiq.h>
+
static u8 ams_delta_latch1_reg;
static u16 ams_delta_latch2_reg;
omap_usb_init(&ams_delta_usb_config);
platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
+#ifdef CONFIG_AMS_DELTA_FIQ
+ ams_delta_init_fiq();
+#endif
+
omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
}
static int __init ams_delta_modem_init(void)
{
+ int err;
+
omap_cfg_reg(M14_1510_GPIO2);
- ams_delta_modem_ports[0].irq = gpio_to_irq(2);
+ ams_delta_modem_ports[0].irq =
+ gpio_to_irq(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
+
+ err = gpio_request(AMS_DELTA_GPIO_PIN_MODEM_IRQ, "modem");
+ if (err) {
+ pr_err("Couldn't request gpio pin for modem\n");
+ return err;
+ }
+ gpio_direction_input(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
ams_delta_latch2_write(
AMS_DELTA_LATCH2_MODEM_NRESET | AMS_DELTA_LATCH2_MODEM_CODEC,
--- /dev/null
+/*
+ * arch/arm/mach-omap1/include/ams-delta-fiq.h
+ *
+ * Taken from the original Amstrad modifications to fiq.h
+ *
+ * Copyright (c) 2004 Amstrad Plc
+ * Copyright (c) 2006 Matt Callow
+ * Copyright (c) 2010 Janusz Krzysztofik
+ *
+ * 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.
+ */
+#ifndef __AMS_DELTA_FIQ_H
+#define __AMS_DELTA_FIQ_H
+
+#include <plat/irqs.h>
+
+/*
+ * Interrupt number used for passing control from FIQ to IRQ.
+ * IRQ12, described as reserved, has been selected.
+ */
+#define INT_DEFERRED_FIQ INT_1510_RES12
+/*
+ * Base address of an interrupt handler that the INT_DEFERRED_FIQ belongs to.
+ */
+#if (INT_DEFERRED_FIQ < IH2_BASE)
+#define DEFERRED_FIQ_IH_BASE OMAP_IH1_BASE
+#else
+#define DEFERRED_FIQ_IH_BASE OMAP_IH2_BASE
+#endif
+
+/*
+ * These are the offsets from the begining of the fiq_buffer. They are put here
+ * since the buffer and header need to be accessed by drivers servicing devices
+ * which generate GPIO interrupts - e.g. keyboard, modem, hook switch.
+ */
+#define FIQ_MASK 0
+#define FIQ_STATE 1
+#define FIQ_KEYS_CNT 2
+#define FIQ_TAIL_OFFSET 3
+#define FIQ_HEAD_OFFSET 4
+#define FIQ_BUF_LEN 5
+#define FIQ_KEY 6
+#define FIQ_MISSED_KEYS 7
+#define FIQ_BUFFER_START 8
+#define FIQ_GPIO_INT_MASK 9
+#define FIQ_KEYS_HICNT 10
+#define FIQ_IRQ_PEND 11
+#define FIQ_SIR_CODE_L1 12
+#define IRQ_SIR_CODE_L2 13
+
+#define FIQ_CNT_INT_00 14
+#define FIQ_CNT_INT_KEY 15
+#define FIQ_CNT_INT_MDM 16
+#define FIQ_CNT_INT_03 17
+#define FIQ_CNT_INT_HSW 18
+#define FIQ_CNT_INT_05 19
+#define FIQ_CNT_INT_06 20
+#define FIQ_CNT_INT_07 21
+#define FIQ_CNT_INT_08 22
+#define FIQ_CNT_INT_09 23
+#define FIQ_CNT_INT_10 24
+#define FIQ_CNT_INT_11 25
+#define FIQ_CNT_INT_12 26
+#define FIQ_CNT_INT_13 27
+#define FIQ_CNT_INT_14 28
+#define FIQ_CNT_INT_15 29
+
+#define FIQ_CIRC_BUFF 30 /*Start of circular buffer */
+
+#ifndef __ASSEMBLER__
+extern unsigned int fiq_buffer[];
+extern unsigned char qwerty_fiqin_start, qwerty_fiqin_end;
+
+extern void __init ams_delta_init_fiq(void);
+#endif
+
+#endif
#include <linux/serial_reg.h>
+#include <asm/memory.h>
+
#include <plat/serial.h>
.pushsection .data
cmp \rx, #0 @ is port configured?
bne 99f @ already configured
- /* Check 7XX UART1 scratchpad register for uart to use */
+ /* Check the debug UART configuration set in uncompress.h */
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
- moveq \rx, #0xff000000 @ physical base address
- movne \rx, #0xfe000000 @ virtual base
- orr \rx, \rx, #0x00fb0000 @ OMAP1UART1
- ldrb \rx, [\rx, #(UART_SCR << OMAP7XX_PORT_SHIFT)]
- cmp \rx, #0 @ anything in 7XX scratchpad?
- bne 10f @ found 7XX uart
-
- /* Check 15xx/16xx UART1 scratchpad register for uart to use */
- mrc p15, 0, \rx, c1, c0
- tst \rx, #1 @ MMU enabled?
- moveq \rx, #0xff000000 @ physical base address
- movne \rx, #0xfe000000 @ virtual base
- orr \rx, \rx, #0x00fb0000 @ OMAP1UART1
- ldrb \rx, [\rx, #(UART_SCR << OMAP_PORT_SHIFT)]
+ ldreq \rx, =OMAP_UART_INFO
+ ldrne \rx, =__phys_to_virt(OMAP_UART_INFO)
+ ldr \rx, [\rx, #0]
/* Select the UART to use based on the UART1 scratchpad value */
10: cmp \rx, #0 @ no port configured?
#include <plat/gpmc.h>
#include <plat/usb.h>
#include <plat/display.h>
+#include <plat/mcspi.h>
#include <mach/hardware.h>
static struct plat_serial8250_port serial_platform_data[] = {
{
- .mapbase = 0x10000000,
+ .mapbase = ZOOM_UART_BASE,
.irq = OMAP_GPIO_IRQ(102),
.flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
.irqflags = IRQF_SHARED | IRQF_TRIGGER_RISING,
}
MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
- .phys_io = 0x48000000,
- .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
+ .phys_io = ZOOM_UART_BASE,
+ .io_pg_offst = (ZOOM_UART_VIRT >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap_zoom2_map_io,
.init_irq = omap_zoom2_init_irq,
}
MACHINE_START(OMAP_ZOOM3, "OMAP Zoom3 board")
- .phys_io = 0x48000000,
- .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
+ .phys_io = ZOOM_UART_BASE,
+ .io_pg_offst = (ZOOM_UART_VIRT >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap_zoom_map_io,
.init_irq = omap_zoom_init_irq,
#include <linux/serial_reg.h>
+#include <asm/memory.h>
+
#include <plat/serial.h>
#define UART_OFFSET(addr) ((addr) & 0x00ffffff)
cmp \rx, #0 @ is port configured?
bne 99f @ already configured
- /* Check UART1 scratchpad register for uart to use */
+ /* Check the debug UART configuration set in uncompress.h */
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
- moveq \rx, #0x48000000 @ physical base address
- movne \rx, #0xfa000000 @ virtual base
- orr \rx, \rx, #0x0006a000 @ uart1 on omap2/3/4
- ldrb \rx, [\rx, #(UART_SCR << OMAP_PORT_SHIFT)] @ scratchpad
+ ldreq \rx, =OMAP_UART_INFO
+ ldrne \rx, =__phys_to_virt(OMAP_UART_INFO)
+ ldr \rx, [\rx, #0]
/* Select the UART to use based on the UART1 scratchpad value */
cmp \rx, #0 @ no port configured?
b 98f
44: mov \rx, #UART_OFFSET(OMAP4_UART4_BASE)
b 98f
-95: mov \rx, #ZOOM_UART_BASE
+95: ldr \rx, =ZOOM_UART_BASE
ldr \tmp, =omap_uart_phys
str \rx, [\tmp, #0]
- mov \rx, #ZOOM_UART_VIRT
+ ldr \rx, =ZOOM_UART_VIRT
ldr \tmp, =omap_uart_virt
str \rx, [\tmp, #0]
mov \rx, #(UART_LSR << ZOOM_PORT_SHIFT)
.length = L4_EMU_34XX_SIZE,
.type = MT_DEVICE
},
+#if defined(CONFIG_DEBUG_LL) && \
+ (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
+ {
+ .virtual = ZOOM_UART_VIRT,
+ .pfn = __phys_to_pfn(ZOOM_UART_BASE),
+ .length = SZ_1M,
+ .type = MT_DEVICE
+ },
+#endif
};
#endif
#ifdef CONFIG_ARCH_OMAP4
_OMAP3_BALLENTRY(GPMC_A8, "m3", "ab18"),
_OMAP3_BALLENTRY(GPMC_A9, "l3", "ac19"),
_OMAP3_BALLENTRY(GPMC_CLK, "t4", "w2"),
- _OMAP3_BALLENTRY(GPMC_D0, "k1", "m2"),
- _OMAP3_BALLENTRY(GPMC_D1, "l1", "m1"),
_OMAP3_BALLENTRY(GPMC_D10, "p1", "ab4"),
_OMAP3_BALLENTRY(GPMC_D11, "r1", "ac4"),
_OMAP3_BALLENTRY(GPMC_D12, "r2", "ab6"),
_OMAP3_BALLENTRY(GPMC_D13, "t2", "ac6"),
_OMAP3_BALLENTRY(GPMC_D14, "w1", "ab7"),
_OMAP3_BALLENTRY(GPMC_D15, "y1", "ac7"),
- _OMAP3_BALLENTRY(GPMC_D2, "l2", "n2"),
- _OMAP3_BALLENTRY(GPMC_D3, "p2", "n1"),
- _OMAP3_BALLENTRY(GPMC_D4, "t1", "r2"),
- _OMAP3_BALLENTRY(GPMC_D5, "v1", "r1"),
- _OMAP3_BALLENTRY(GPMC_D6, "v2", "t2"),
- _OMAP3_BALLENTRY(GPMC_D7, "w2", "t1"),
- _OMAP3_BALLENTRY(GPMC_D8, "h2", "ab3"),
_OMAP3_BALLENTRY(GPMC_D9, "k2", "ac3"),
- _OMAP3_BALLENTRY(GPMC_NADV_ALE, "f3", "w1"),
_OMAP3_BALLENTRY(GPMC_NBE0_CLE, "g3", "ac12"),
_OMAP3_BALLENTRY(GPMC_NBE1, "u3", NULL),
- _OMAP3_BALLENTRY(GPMC_NCS0, "g4", "y2"),
_OMAP3_BALLENTRY(GPMC_NCS1, "h3", "y1"),
_OMAP3_BALLENTRY(GPMC_NCS2, "v8", NULL),
_OMAP3_BALLENTRY(GPMC_NCS3, "u8", NULL),
_OMAP3_BALLENTRY(GPMC_NCS5, "r8", NULL),
_OMAP3_BALLENTRY(GPMC_NCS6, "p8", NULL),
_OMAP3_BALLENTRY(GPMC_NCS7, "n8", NULL),
- _OMAP3_BALLENTRY(GPMC_NOE, "g2", "v2"),
- _OMAP3_BALLENTRY(GPMC_NWE, "f4", "v1"),
_OMAP3_BALLENTRY(GPMC_NWP, "h1", "ab10"),
- _OMAP3_BALLENTRY(GPMC_WAIT0, "m8", "ab12"),
_OMAP3_BALLENTRY(GPMC_WAIT1, "l8", "ac10"),
_OMAP3_BALLENTRY(GPMC_WAIT2, "k8", NULL),
_OMAP3_BALLENTRY(GPMC_WAIT3, "j8", NULL),
_OMAP3_BALLENTRY(HSUSB0_DIR, "r28", NULL),
_OMAP3_BALLENTRY(HSUSB0_NXT, "t26", NULL),
_OMAP3_BALLENTRY(HSUSB0_STP, "t25", NULL),
- _OMAP3_BALLENTRY(I2C1_SCL, "k21", NULL),
- _OMAP3_BALLENTRY(I2C1_SDA, "j21", NULL),
_OMAP3_BALLENTRY(I2C2_SCL, "af15", NULL),
_OMAP3_BALLENTRY(I2C2_SDA, "ae15", NULL),
_OMAP3_BALLENTRY(I2C3_SCL, "af14", NULL),
_OMAP3_BALLENTRY(I2C4_SDA, "ae26", NULL),
_OMAP3_BALLENTRY(JTAG_EMU0, "aa11", NULL),
_OMAP3_BALLENTRY(JTAG_EMU1, "aa10", NULL),
- _OMAP3_BALLENTRY(JTAG_RTCK, "aa12", NULL),
- _OMAP3_BALLENTRY(JTAG_TCK, "aa13", NULL),
- _OMAP3_BALLENTRY(JTAG_TDI, "aa20", NULL),
- _OMAP3_BALLENTRY(JTAG_TDO, "aa19", NULL),
- _OMAP3_BALLENTRY(JTAG_TMS_TMSC, "aa18", NULL),
_OMAP3_BALLENTRY(MCBSP1_CLKR, "y21", NULL),
_OMAP3_BALLENTRY(MCBSP1_CLKX, "w21", NULL),
_OMAP3_BALLENTRY(MCBSP1_DR, "u21", NULL),
_OMAP3_BALLENTRY(SDMMC2_DAT5, "ah3", NULL),
_OMAP3_BALLENTRY(SDMMC2_DAT6, "af3", NULL),
_OMAP3_BALLENTRY(SDMMC2_DAT7, "ae3", NULL),
- _OMAP3_BALLENTRY(SDRC_A0, NULL, "n22"),
- _OMAP3_BALLENTRY(SDRC_A1, NULL, "n23"),
- _OMAP3_BALLENTRY(SDRC_A10, NULL, "v22"),
- _OMAP3_BALLENTRY(SDRC_A11, NULL, "v23"),
- _OMAP3_BALLENTRY(SDRC_A12, NULL, "w22"),
- _OMAP3_BALLENTRY(SDRC_A13, NULL, "w23"),
- _OMAP3_BALLENTRY(SDRC_A14, NULL, "y22"),
- _OMAP3_BALLENTRY(SDRC_A2, NULL, "p22"),
- _OMAP3_BALLENTRY(SDRC_A3, NULL, "p23"),
- _OMAP3_BALLENTRY(SDRC_A4, NULL, "r22"),
- _OMAP3_BALLENTRY(SDRC_A5, NULL, "r23"),
- _OMAP3_BALLENTRY(SDRC_A6, NULL, "t22"),
- _OMAP3_BALLENTRY(SDRC_A7, NULL, "t23"),
- _OMAP3_BALLENTRY(SDRC_A8, NULL, "u22"),
- _OMAP3_BALLENTRY(SDRC_A9, NULL, "u23"),
- _OMAP3_BALLENTRY(SDRC_BA0, "h9", "ab21"),
- _OMAP3_BALLENTRY(SDRC_BA1, "h10", "ac21"),
_OMAP3_BALLENTRY(SDRC_CKE0, "h16", "j22"),
_OMAP3_BALLENTRY(SDRC_CKE1, "h17", "j23"),
- _OMAP3_BALLENTRY(SDRC_CLK, "a13", "a11"),
- _OMAP3_BALLENTRY(SDRC_D0, NULL, "j2"),
- _OMAP3_BALLENTRY(SDRC_D1, NULL, "j1"),
- _OMAP3_BALLENTRY(SDRC_D10, "c15", "b14"),
- _OMAP3_BALLENTRY(SDRC_D11, "b16", "a14"),
- _OMAP3_BALLENTRY(SDRC_D12, "d17", "b16"),
- _OMAP3_BALLENTRY(SDRC_D13, "c17", "a16"),
- _OMAP3_BALLENTRY(SDRC_D14, "b17", "b19"),
- _OMAP3_BALLENTRY(SDRC_D15, "d18", "a19"),
- _OMAP3_BALLENTRY(SDRC_D16, NULL, "b3"),
- _OMAP3_BALLENTRY(SDRC_D17, NULL, "a3"),
- _OMAP3_BALLENTRY(SDRC_D18, NULL, "b5"),
- _OMAP3_BALLENTRY(SDRC_D19, NULL, "a5"),
- _OMAP3_BALLENTRY(SDRC_D2, NULL, "g2"),
- _OMAP3_BALLENTRY(SDRC_D20, NULL, "b8"),
- _OMAP3_BALLENTRY(SDRC_D21, NULL, "a8"),
- _OMAP3_BALLENTRY(SDRC_D22, NULL, "b9"),
- _OMAP3_BALLENTRY(SDRC_D23, NULL, "a9"),
- _OMAP3_BALLENTRY(SDRC_D24, NULL, "b21"),
- _OMAP3_BALLENTRY(SDRC_D25, NULL, "a21"),
- _OMAP3_BALLENTRY(SDRC_D26, NULL, "d22"),
- _OMAP3_BALLENTRY(SDRC_D27, NULL, "d23"),
- _OMAP3_BALLENTRY(SDRC_D28, NULL, "e22"),
- _OMAP3_BALLENTRY(SDRC_D29, NULL, "e23"),
- _OMAP3_BALLENTRY(SDRC_D3, NULL, "g1"),
- _OMAP3_BALLENTRY(SDRC_D30, NULL, "g22"),
- _OMAP3_BALLENTRY(SDRC_D31, NULL, "g23"),
- _OMAP3_BALLENTRY(SDRC_D4, NULL, "f2"),
- _OMAP3_BALLENTRY(SDRC_D5, NULL, "f1"),
- _OMAP3_BALLENTRY(SDRC_D6, NULL, "d2"),
- _OMAP3_BALLENTRY(SDRC_D7, NULL, "d1"),
- _OMAP3_BALLENTRY(SDRC_D8, "c14", "b13"),
- _OMAP3_BALLENTRY(SDRC_D9, "b14", "a13"),
- _OMAP3_BALLENTRY(SDRC_DM0, NULL, "c1"),
- _OMAP3_BALLENTRY(SDRC_DM1, "a16", "a17"),
- _OMAP3_BALLENTRY(SDRC_DM2, NULL, "a6"),
- _OMAP3_BALLENTRY(SDRC_DM3, NULL, "a20"),
- _OMAP3_BALLENTRY(SDRC_DQS0, NULL, "c2"),
- _OMAP3_BALLENTRY(SDRC_DQS1, "a17", "b17"),
- _OMAP3_BALLENTRY(SDRC_DQS2, NULL, "b6"),
- _OMAP3_BALLENTRY(SDRC_DQS3, NULL, "b20"),
- _OMAP3_BALLENTRY(SDRC_NCAS, "h13", "l22"),
- _OMAP3_BALLENTRY(SDRC_NCLK, "a14", "b11"),
- _OMAP3_BALLENTRY(SDRC_NCS0, "h11", "m22"),
- _OMAP3_BALLENTRY(SDRC_NCS1, "h12", "m23"),
- _OMAP3_BALLENTRY(SDRC_NRAS, "h14", "l23"),
- _OMAP3_BALLENTRY(SDRC_NWE, "h15", "k23"),
_OMAP3_BALLENTRY(SIM_CLK, "p26", NULL),
_OMAP3_BALLENTRY(SIM_IO, "p27", NULL),
_OMAP3_BALLENTRY(SIM_PWRCTRL, "r27", NULL),
_OMAP3_BALLENTRY(SIM_RST, "r25", NULL),
- _OMAP3_BALLENTRY(SYS_32K, "ae25", NULL),
_OMAP3_BALLENTRY(SYS_BOOT0, "ah26", NULL),
_OMAP3_BALLENTRY(SYS_BOOT1, "ag26", NULL),
_OMAP3_BALLENTRY(SYS_BOOT2, "ae14", NULL),
#include <mach/hardware.h>
+#ifdef CONFIG_FIQ
+#define FIQ_START 1024
+#endif
+
#endif
# define OMAP_NAME omap16xx
# endif
#endif
-#if (defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3))
+#ifdef CONFIG_ARCH_OMAP2PLUS
# if (defined(OMAP_NAME) || defined(MULTI_OMAP1))
-# error "OMAP1 and OMAP2 can't be selected at the same time"
+# error "OMAP1 and OMAP2PLUS can't be selected at the same time"
# endif
#endif
#ifdef CONFIG_ARCH_OMAP2420
# define OMAP_NAME omap2430
# endif
#endif
-#ifdef CONFIG_ARCH_OMAP3430
+#ifdef CONFIG_ARCH_OMAP3
# ifdef OMAP_NAME
# undef MULTI_OMAP2
# define MULTI_OMAP2
# else
-# define OMAP_NAME omap3430
+# define OMAP_NAME omap3
+# endif
+#endif
+#ifdef CONFIG_ARCH_OMAP4
+# ifdef OMAP_NAME
+# undef MULTI_OMAP2
+# define MULTI_OMAP2
+# else
+# define OMAP_NAME omap4
# endif
#endif
#include <linux/init.h>
+/*
+ * Memory entry used for the DEBUG_LL UART configuration. See also
+ * uncompress.h and debug-macro.S.
+ *
+ * Note that using a memory location for storing the UART configuration
+ * has at least two limitations:
+ *
+ * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
+ * uncompress code could then partially overwrite itself
+ * 2. We assume printascii is called at least once before paging_init,
+ * and addruart has a chance to read OMAP_UART_INFO
+ */
+#define OMAP_UART_INFO (PHYS_OFFSET + 0x3ffc)
+
/* OMAP1 serial ports */
#define OMAP1_UART1_BASE 0xfffb0000
#define OMAP1_UART2_BASE 0xfffb0800
/* External port on Zoom2/3 */
#define ZOOM_UART_BASE 0x10000000
-#define ZOOM_UART_VIRT 0xfb000000
+#define ZOOM_UART_VIRT 0xfa400000
#define OMAP_PORT_SHIFT 2
#define OMAP7XX_PORT_SHIFT 0
#include <linux/types.h>
#include <linux/serial_reg.h>
+#include <asm/memory.h>
#include <asm/mach-types.h>
#include <plat/serial.h>
-static volatile u8 *uart1_base;
-static int uart1_shift;
-
static volatile u8 *uart_base;
static int uart_shift;
/*
- * Store the DEBUG_LL uart number into UART1 scratchpad register.
+ * Store the DEBUG_LL uart number into memory.
* See also debug-macro.S, and serial.c for related code.
- *
- * Please note that we currently assume that:
- * - UART1 clocks are enabled for register access
- * - UART1 scratchpad register can be used
*/
-static void set_uart1_scratchpad(unsigned char port)
+static void set_omap_uart_info(unsigned char port)
{
- uart1_base[UART_SCR << uart1_shift] = port;
+ *(volatile u32 *)OMAP_UART_INFO = port;
}
static void putc(int c)
/*
* Macros to configure UART1 and debug UART
*/
-#define _DEBUG_LL_ENTRY(mach, uart1_phys, uart1_shft, \
- dbg_uart, dbg_shft, dbg_id) \
+#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id) \
if (machine_is_##mach()) { \
- uart1_base = (volatile u8 *)(uart1_phys); \
- uart1_shift = (uart1_shft); \
uart_base = (volatile u8 *)(dbg_uart); \
uart_shift = (dbg_shft); \
port = (dbg_id); \
- set_uart1_scratchpad(port); \
+ set_omap_uart_info(port); \
break; \
}
#define DEBUG_LL_OMAP7XX(p, mach) \
- _DEBUG_LL_ENTRY(mach, OMAP1_UART1_BASE, OMAP7XX_PORT_SHIFT, \
- OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, OMAP1UART##p)
+ _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP7XX_PORT_SHIFT, \
+ OMAP1UART##p)
#define DEBUG_LL_OMAP1(p, mach) \
- _DEBUG_LL_ENTRY(mach, OMAP1_UART1_BASE, OMAP_PORT_SHIFT, \
- OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP1UART##p)
+ _DEBUG_LL_ENTRY(mach, OMAP1_UART##p##_BASE, OMAP_PORT_SHIFT, \
+ OMAP1UART##p)
#define DEBUG_LL_OMAP2(p, mach) \
- _DEBUG_LL_ENTRY(mach, OMAP2_UART1_BASE, OMAP_PORT_SHIFT, \
- OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP2UART##p)
+ _DEBUG_LL_ENTRY(mach, OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT, \
+ OMAP2UART##p)
#define DEBUG_LL_OMAP3(p, mach) \
- _DEBUG_LL_ENTRY(mach, OMAP3_UART1_BASE, OMAP_PORT_SHIFT, \
- OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP3UART##p)
+ _DEBUG_LL_ENTRY(mach, OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT, \
+ OMAP3UART##p)
#define DEBUG_LL_OMAP4(p, mach) \
- _DEBUG_LL_ENTRY(mach, OMAP4_UART1_BASE, OMAP_PORT_SHIFT, \
- OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT, OMAP4UART##p)
+ _DEBUG_LL_ENTRY(mach, OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT, \
+ OMAP4UART##p)
/* Zoom2/3 shift is different for UART1 and external port */
#define DEBUG_LL_ZOOM(mach) \
- _DEBUG_LL_ENTRY(mach, OMAP2_UART1_BASE, OMAP_PORT_SHIFT, \
- ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
+ _DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
static inline void __arch_decomp_setup(unsigned long arch_id)
{
}
#endif
+#ifdef CONFIG_ARCH_OMAP4
+int __init omap44xx_sram_init(void)
+{
+ printk(KERN_ERR "FIXME: %s not implemented\n", __func__);
+
+ return -ENODEV;
+}
+#else
+static inline int omap44xx_sram_init(void)
+{
+ return 0;
+}
+#endif
+
int __init omap_sram_init(void)
{
omap_detect_sram();
else if (cpu_is_omap34xx())
omap34xx_sram_init();
else if (cpu_is_omap44xx())
- omap34xx_sram_init(); /* FIXME: */
+ omap44xx_sram_init();
return 0;
}
To compile this driver as a module, choose M here: the
module will be called altera_ps2.
+config SERIO_AMS_DELTA
+ tristate "Amstrad Delta (E3) mailboard support"
+ depends on MACH_AMS_DELTA
+ default y
+ select AMS_DELTA_FIQ
+ ---help---
+ Say Y here if you have an E3 and want to use its mailboard,
+ or any standard AT keyboard connected to the mailboard port.
+
+ When used for the E3 mailboard, a non-standard key table
+ must be loaded from userspace, possibly using udev extras
+ provided keymap helper utility.
+
+ To compile this driver as a module, choose M here;
+ the module will be called ams_delta_serio.
+
endif
obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o
obj-$(CONFIG_SERIO_LIBPS2) += libps2.o
obj-$(CONFIG_SERIO_RAW) += serio_raw.o
+obj-$(CONFIG_SERIO_AMS_DELTA) += ams_delta_serio.o
obj-$(CONFIG_SERIO_XILINX_XPS_PS2) += xilinx_ps2.o
obj-$(CONFIG_SERIO_ALTERA_PS2) += altera_ps2.o
--- /dev/null
+/*
+ * Amstrad E3 (Delta) keyboard port driver
+ *
+ * Copyright (c) 2006 Matt Callow
+ * Copyright (c) 2010 Janusz Krzysztofik
+ *
+ * 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.
+ *
+ * Thanks to Cliff Lawson for his help
+ *
+ * The Amstrad Delta keyboard (aka mailboard) uses normal PC-AT style serial
+ * transmission. The keyboard port is formed of two GPIO lines, for clock
+ * and data. Due to strict timing requirements of the interface,
+ * the serial data stream is read and processed by a FIQ handler.
+ * The resulting words are fetched by this driver from a circular buffer.
+ *
+ * Standard AT keyboard driver (atkbd) is used for handling the keyboard data.
+ * However, when used with the E3 mailboard that producecs non-standard
+ * scancodes, a custom key table must be prepared and loaded from userspace.
+ */
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/serio.h>
+#include <linux/slab.h>
+
+#include <asm/mach-types.h>
+#include <plat/board-ams-delta.h>
+
+#include <mach/ams-delta-fiq.h>
+
+MODULE_AUTHOR("Matt Callow");
+MODULE_DESCRIPTION("AMS Delta (E3) keyboard port driver");
+MODULE_LICENSE("GPL");
+
+static struct serio *ams_delta_serio;
+
+static int check_data(int data)
+{
+ int i, parity = 0;
+
+ /* check valid stop bit */
+ if (!(data & 0x400)) {
+ dev_warn(&ams_delta_serio->dev,
+ "invalid stop bit, data=0x%X\n",
+ data);
+ return SERIO_FRAME;
+ }
+ /* calculate the parity */
+ for (i = 1; i < 10; i++) {
+ if (data & (1 << i))
+ parity++;
+ }
+ /* it should be odd */
+ if (!(parity & 0x01)) {
+ dev_warn(&ams_delta_serio->dev,
+ "paritiy check failed, data=0x%X parity=0x%X\n",
+ data, parity);
+ return SERIO_PARITY;
+ }
+ return 0;
+}
+
+static irqreturn_t ams_delta_serio_interrupt(int irq, void *dev_id)
+{
+ int *circ_buff = &fiq_buffer[FIQ_CIRC_BUFF];
+ int data, dfl;
+ u8 scancode;
+
+ fiq_buffer[FIQ_IRQ_PEND] = 0;
+
+ /*
+ * Read data from the circular buffer, check it
+ * and then pass it on the serio
+ */
+ while (fiq_buffer[FIQ_KEYS_CNT] > 0) {
+
+ data = circ_buff[fiq_buffer[FIQ_HEAD_OFFSET]++];
+ fiq_buffer[FIQ_KEYS_CNT]--;
+ if (fiq_buffer[FIQ_HEAD_OFFSET] == fiq_buffer[FIQ_BUF_LEN])
+ fiq_buffer[FIQ_HEAD_OFFSET] = 0;
+
+ dfl = check_data(data);
+ scancode = (u8) (data >> 1) & 0xFF;
+ serio_interrupt(ams_delta_serio, scancode, dfl);
+ }
+ return IRQ_HANDLED;
+}
+
+static int ams_delta_serio_open(struct serio *serio)
+{
+ /* enable keyboard */
+ ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR,
+ AMD_DELTA_LATCH2_KEYBRD_PWR);
+
+ return 0;
+}
+
+static void ams_delta_serio_close(struct serio *serio)
+{
+ /* disable keyboard */
+ ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR, 0);
+}
+
+static int __init ams_delta_serio_init(void)
+{
+ int err;
+
+ if (!machine_is_ams_delta())
+ return -ENODEV;
+
+ ams_delta_serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ams_delta_serio)
+ return -ENOMEM;
+
+ ams_delta_serio->id.type = SERIO_8042;
+ ams_delta_serio->open = ams_delta_serio_open;
+ ams_delta_serio->close = ams_delta_serio_close;
+ strlcpy(ams_delta_serio->name, "AMS DELTA keyboard adapter",
+ sizeof(ams_delta_serio->name));
+ strlcpy(ams_delta_serio->phys, "GPIO/serio0",
+ sizeof(ams_delta_serio->phys));
+
+ err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_DATA, "serio-data");
+ if (err) {
+ pr_err("ams_delta_serio: Couldn't request gpio pin for data\n");
+ goto serio;
+ }
+ gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+
+ err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_CLK, "serio-clock");
+ if (err) {
+ pr_err("ams_delta_serio: couldn't request gpio pin for clock\n");
+ goto gpio_data;
+ }
+ gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+
+ err = request_irq(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
+ ams_delta_serio_interrupt, IRQ_TYPE_EDGE_RISING,
+ "ams-delta-serio", 0);
+ if (err < 0) {
+ pr_err("ams_delta_serio: couldn't request gpio interrupt %d\n",
+ gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK));
+ goto gpio_clk;
+ }
+ /*
+ * Since GPIO register handling for keyboard clock pin is performed
+ * at FIQ level, switch back from edge to simple interrupt handler
+ * to avoid bad interaction.
+ */
+ set_irq_handler(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
+ handle_simple_irq);
+
+ serio_register_port(ams_delta_serio);
+ dev_info(&ams_delta_serio->dev, "%s\n", ams_delta_serio->name);
+
+ return 0;
+gpio_clk:
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+gpio_data:
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+serio:
+ kfree(ams_delta_serio);
+ return err;
+}
+module_init(ams_delta_serio_init);
+
+static void __exit ams_delta_serio_exit(void)
+{
+ serio_unregister_port(ams_delta_serio);
+ free_irq(OMAP_GPIO_IRQ(AMS_DELTA_GPIO_PIN_KEYBRD_CLK), 0);
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+ kfree(ams_delta_serio);
+}
+module_exit(ams_delta_serio_exit);
git.openpandora.org / pandora-kernel.git / commitdiff