[U-Boot] [PATCH 1/3] MSM7630 Interrupt support

Mohamed Haneef
2012-05-11T06:04:57Z

* Support for msm7630 interrupts

Signed-off-by: Mohamed Haneef <mohamed.haneef@lntinfotech.com>
---
arch/arm/cpu/armv7/msm7630/Makefile | 1 +
arch/arm/cpu/armv7/msm7630/interrupts.c | 155 +++++++++++++++++++++
arch/arm/include/asm/arch-msm7630/exclusion.h | 42 ++++++
arch/arm/include/asm/arch-msm7630/interrupts.h | 40 ++++++
arch/arm/include/asm/arch-msm7630/irqs.h | 173 ++++++++++++++++++++++++
board/qcom/msm7630_surf/msm7630_surf.c | 3 +
6 files changed, 414 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/cpu/armv7/msm7630/interrupts.c
create mode 100644 arch/arm/include/asm/arch-msm7630/exclusion.h
create mode 100644 arch/arm/include/asm/arch-msm7630/interrupts.h
create mode 100644 arch/arm/include/asm/arch-msm7630/irqs.h

diff --git a/arch/arm/cpu/armv7/msm7630/Makefile b/arch/arm/cpu/armv7/msm7630/Makefile
index b97026f..b106ddc 100644
--- a/arch/arm/cpu/armv7/msm7630/Makefile
+++ b/arch/arm/cpu/armv7/msm7630/Makefile
@@ -40,6 +40,7 @@ COBJS-y := board.o
COBJS-y += timer.o
COBJS-y += acpuclock.o
COBJS-y += gpio.o
+COBJS-$(CONFIG_USE_IRQ) += interrupts.o

SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS-y) $(SOBJS-y))
diff --git a/arch/arm/cpu/armv7/msm7630/interrupts.c b/arch/arm/cpu/armv7/msm7630/interrupts.c
new file mode 100644
index 0000000..6cae9c8
--- /dev/null
+++ b/arch/arm/cpu/armv7/msm7630/interrupts.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * (C) Copyright 2012
+ * Larsen & Toubro Infotech Ltd. <www.lntinfotech.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google, Inc. nor the names of its contributors
+ * may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/interrupts.h>
+#include <asm/arch/irqs.h>
+#include <asm/arch/iomap.h>
+#include <asm/arch/exclusion.h>
+
+#define VIC_REG(off) (MSM_VIC_BASE + (off))
+
+#define VIC_INT_SELECT0 VIC_REG(0x0000) /* 1: FIQ, 0: IRQ */
+#define VIC_INT_SELECT1 VIC_REG(0x0004) /* 1: FIQ, 0: IRQ */
+#define VIC_INT_EN0 VIC_REG(0x0010)
+#define VIC_INT_EN1 VIC_REG(0x0014)
+#define VIC_INT_ENCLEAR0 VIC_REG(0x0020)
+#define VIC_INT_ENCLEAR1 VIC_REG(0x0024)
+#define VIC_INT_ENSET0 VIC_REG(0x0030)
+#define VIC_INT_ENSET1 VIC_REG(0x0034)
+#define VIC_INT_TYPE0 VIC_REG(0x0040) /* 1: EDGE, 0: LEVEL */
+#define VIC_INT_TYPE1 VIC_REG(0x0044) /* 1: EDGE, 0: LEVEL */
+#define VIC_INT_POLARITY0 VIC_REG(0x0050) /* 1: NEG, 0: POS */
+#define VIC_INT_POLARITY1 VIC_REG(0x0054) /* 1: NEG, 0: POS */
+#define VIC_NO_PEND_VAL VIC_REG(0x0060)
+#define VIC_INT_MASTEREN VIC_REG(0x0068) /* 1: IRQ, 2: FIQ */
+#define VIC_CONFIG VIC_REG(0x006C) /* 1: USE ARM1136 VIC */
+#define VIC_SECURITY0 VIC_REG(0x0070)
+#define VIC_SECURITY1 VIC_REG(0x0074)
+#define VIC_IRQ_STATUS0 VIC_REG(0x0080)
+#define VIC_IRQ_STATUS1 VIC_REG(0x0084)
+#define VIC_FIQ_STATUS0 VIC_REG(0x0090)
+#define VIC_FIQ_STATUS1 VIC_REG(0x0094)
+#define VIC_RAW_STATUS0 VIC_REG(0x00A0)
+#define VIC_RAW_STATUS1 VIC_REG(0x00A4)
+#define VIC_INT_CLEAR0 VIC_REG(0x00B0)
+#define VIC_INT_CLEAR1 VIC_REG(0x00B4)
+#define VIC_SOFTINT0 VIC_REG(0x00C0)
+#define VIC_SOFTINT1 VIC_REG(0x00C4)
+#define VIC_IRQ_VEC_RD VIC_REG(0x00D0) /* pending int # */
+#define VIC_IRQ_VEC_PEND_RD VIC_REG(0x00D4) /* pending vector addr */
+#define VIC_IRQ_VEC_WR VIC_REG(0x00D8)
+#define VIC_FIQ_VEC_RD VIC_REG(0x00DC) /* pending int # */
+#define VIC_FIQ_VEC_PEND_RD VIC_REG(0x00E0) /* pending vector addr */
+#define VIC_FIQ_VEC_WR VIC_REG(0x00E4)
+#define VIC_IRQ_IN_SERVICE VIC_REG(0x00E8)
+#define VIC_IRQ_IN_STACK VIC_REG(0x00EC)
+#define VIC_FIQ_IN_SERVICE VIC_REG(0x00F0)
+#define VIC_FIQ_IN_STACK VIC_REG(0x00F4)
+#define VIC_TEST_BUS_SEL VIC_REG(0x00F8)
+
+#define SIRC_REG(off) (MSM_SIRC_BASE + (off))
+
+#define SIRC_INT_SELECT SIRC_REG(0x0000) /* 0: IRQ0 1: IRQ1 */
+#define SIRC_INT_ENABLE SIRC_REG(0x0004)
+#define SIRC_INT_ENCLEAR SIRC_REG(0x0008)
+#define SIRC_INT_ENSET SIRC_REG(0x000C)
+#define SIRC_INT_TYPE SIRC_REG(0x0010) /* 1: EDGE, 0: LEVEL */
+#define SIRC_INT_POLARITY SIRC_REG(0x0014) /* 1: NEG, 0: POS */
+#define SIRC_SECURITY SIRC_REG(0x0018) /* 0: SEC, 1: NSEC */
+#define SIRC_IRQ0_STATUS SIRC_REG(0x001C)
+#define SIRC_IRQ1_STATUS SIRC_REG(0x0020)
+#define SIRC_RAW_STATUS SIRC_REG(0x0024)
+
+struct ihandler {
+ int_handler func;
+ void *arg;
+};
+
+static struct ihandler handler[NR_IRQS];
+
+int arch_interrupt_init(void)
+{
+ writel(0xffffffff, VIC_INT_CLEAR0);
+ writel(0xffffffff, VIC_INT_CLEAR1);
+ writel(0, VIC_INT_SELECT0);
+ writel(0, VIC_INT_SELECT1);
+ writel(0xffffffff, VIC_INT_TYPE0);
+ writel(0xffffffff, VIC_INT_TYPE1);
+ writel(0, VIC_CONFIG);
+ writel(1, VIC_INT_MASTEREN);
+ return 0;
+}
+
+void do_irq(struct pt_regs *pt_regs)
+{
+ unsigned num;
+ enum handler_return ret;
+ num = readl(VIC_IRQ_VEC_RD);
+ num = readl(VIC_IRQ_VEC_PEND_RD);
+ if (num > NR_IRQS)
+ return;
+ (void) handler[num].func(handler[num].arg);
+ writel(1 << (num & 31), (num > 31) ? VIC_INT_CLEAR1 : VIC_INT_CLEAR0);
+ writel(0, VIC_IRQ_VEC_WR);
+}
+
+int mask_interrupt(unsigned int vector)
+{
+ unsigned reg = (vector > 31) ? VIC_INT_ENCLEAR1 : VIC_INT_ENCLEAR0;
+ unsigned bit = 1 << (vector & 31);
+ writel(bit, reg);
+ return 0;
+}
+
+int unmask_interrupt(unsigned int vector)
+{
+ unsigned reg = (vector > 31) ? VIC_INT_ENSET1 : VIC_INT_ENSET0;
+ unsigned bit = 1 << (vector & 31);
+ writel(bit, reg);
+ return 0;
+}
+
+void register_int_handler(unsigned int vector, int_handler func, void *arg)
+{
+ if (vector >= NR_IRQS) {
+ debug("could not set interrupt %#08x", vector);
+ return;
+ }
+ enter_critical_section();
+ handler[vector].func = func;
+ handler[vector].arg = arg;
+ exit_critical_section();
+}
diff --git a/arch/arm/include/asm/arch-msm7630/exclusion.h b/arch/arm/include/asm/arch-msm7630/exclusion.h
new file mode 100644
index 0000000..e98716e
--- /dev/null
+++ b/arch/arm/include/asm/arch-msm7630/exclusion.h
@@ -0,0 +1,42 @@
+/*
+ * (C) Copyright 2012
+ * Larsen & Toubro Infotech Ltd. <www.lntinfotech.com>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __EXCLUSION_H
+#define __EXCLUSION_H
+#include <common.h>
+
+/* critical sections */
+extern int critical_section_count;
+
+static inline __attribute__((always_inline)) void enter_critical_section(void)
+{
+ critical_section_count++;
+ if (critical_section_count == 1)
+ disable_interrupts();
+}
+
+static inline __attribute__((always_inline)) void exit_critical_section(void)
+{
+ critical_section_count--;
+ if (critical_section_count == 0)
+ enable_interrupts();
+}
+
+#endif
diff --git a/arch/arm/include/asm/arch-msm7630/interrupts.h b/arch/arm/include/asm/arch-msm7630/interrupts.h
new file mode 100644
index 0000000..e7b95de
--- /dev/null
+++ b/arch/arm/include/asm/arch-msm7630/interrupts.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2008 Travis Geiselbrecht
+ *
+ * (C) Copyright 2012
+ * Larsen & Toubro Infotech Ltd. <www.lntinfotech.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __PLATFORM_INTERRUPTS_H
+#define __PLATFORM_INTERRUPTS_H
+
+enum handler_return {
+ INT_NO_RESCHEDULE = 0,
+ INT_RESCHEDULE,
+};
+
+
+typedef enum handler_return (*int_handler)(void *arg);
+
+void register_int_handler(unsigned int vector, int_handler handler, void *arg);
+int mask_interrupt(unsigned int vector);
+int unmask_interrupt(unsigned int vector);
+#endif
diff --git a/arch/arm/include/asm/arch-msm7630/irqs.h b/arch/arm/include/asm/arch-msm7630/irqs.h
new file mode 100644
index 0000000..2310e3e
--- /dev/null
+++ b/arch/arm/include/asm/arch-msm7630/irqs.h
@@ -0,0 +1,173 @@
+/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
+ *
+ * (C) Copyright 2012
+ * Larsen & Toubro Infotech Ltd. <www.lntinfotech.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Code Aurora nor
+ * the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __ASM_ARCH_MSM_IRQS_7X30_H
+#define __ASM_ARCH_MSM_IRQS_7X30_H
+
+/* MSM ACPU Interrupt Numbers */
+
+#define INT_DEBUG_TIMER_EXP 0
+#define INT_GPT0_TIMER_EXP 1
+#define INT_GPT1_TIMER_EXP 2
+#define INT_WDT0_ACCSCSSBARK 3
+#define INT_WDT1_ACCSCSSBARK 4
+#define INT_AVS_SVIC 5
+#define INT_AVS_SVIC_SW_DONE 6
+#define INT_SC_DBG_RX_FULL 7
+#define INT_SC_DBG_TX_EMPTY 8
+#define INT_SC_PERF_MON 9
+#define INT_AVS_REQ_DOWN 10
+#define INT_AVS_REQ_UP 11
+#define INT_SC_ACG 12
+/* SCSS_VICFIQSTS1[13:15] are RESERVED */
+#define INT_L2_SVICCPUIRPTREQ 16
+#define INT_L2_SVICDMANSIRPTREQ 17
+#define INT_L2_SVICDMASIRPTREQ 18
+#define INT_L2_SVICSLVIRPTREQ 19
+#define INT_AD5A_MPROC_APPS_0 20
+#define INT_AD5A_MPROC_APPS_1 21
+#define INT_A9_M2A_0 22
+#define INT_A9_M2A_1 23
+#define INT_A9_M2A_2 24
+#define INT_A9_M2A_3 25
+#define INT_A9_M2A_4 26
+#define INT_A9_M2A_5 27
+#define INT_A9_M2A_6 28
+#define INT_A9_M2A_7 29
+#define INT_A9_M2A_8 30
+#define INT_A9_M2A_9 31
+
+#define INT_AXI_EBI1_SC (32 + 0)
+#define INT_IMEM_ERR (32 + 1)
+#define INT_AXI_EBI0_SC (32 + 2)
+#define INT_PBUS_SC_IRQC (32 + 3)
+#define INT_PERPH_BUS_BPM (32 + 4)
+#define INT_CC_TEMP_SENSE (32 + 5)
+#define INT_UXMC_EBI0 (32 + 6)
+#define INT_UXMC_EBI1 (32 + 7)
+#define INT_EBI2_OP_DONE (32 + 8)
+#define INT_EBI2_WR_ER_DONE (32 + 9)
+#define INT_TCSR_SPSS_CE (32 + 10)
+#define INT_EMDH (32 + 11)
+#define INT_PMDH (32 + 12)
+#define INT_MDC (32 + 13)
+#define INT_MIDI_TO_SUPSS (32 + 14)
+#define INT_LPA_2 (32 + 15)
+#define INT_GPIO_GROUP1_SECURE (32 + 16)
+#define INT_GPIO_GROUP2_SECURE (32 + 17)
+#define INT_GPIO_GROUP1 (32 + 18)
+#define INT_GPIO_GROUP2 (32 + 19)
+#define INT_MPRPH_SOFTRESET (32 + 20)
+#define INT_PWB_I2C (32 + 21)
+#define INT_PWB_I2C_2 (32 + 22)
+#define INT_TSSC_SAMPLE (32 + 23)
+#define INT_TSSC_PENUP (32 + 24)
+#define INT_TCHSCRN_SSBI (32 + 25)
+#define INT_FM_RDS (32 + 26)
+#define INT_KEYSENSE (32 + 27)
+#define INT_USB_OTG_HS (32 + 28)
+#define INT_USB_OTG_HS2 (32 + 29)
+#define INT_USB_OTG_HS3 (32 + 30)
+#define INT_RESERVED_BIT31 (32 + 31)
+
+#define INT_SPI_OUTPUT (64 + 0)
+#define INT_SPI_INPUT (64 + 1)
+#define INT_SPI_ERROR (64 + 2)
+#define INT_UART1 (64 + 3)
+#define INT_UART1_RX (64 + 4)
+#define INT_UART2 (64 + 5)
+#define INT_UART2_RX (64 + 6)
+#define INT_UART3 (64 + 7)
+#define INT_UART3_RX (64 + 8)
+#define INT_UART1DM_IRQ (64 + 9)
+#define INT_UART1DM_RX (64 + 10)
+#define INT_UART2DM_IRQ (64 + 11)
+#define INT_UART2DM_RX (64 + 12)
+#define INT_TSIF (64 + 13)
+#define INT_ADM_SC1 (64 + 14)
+#define INT_ADM_SC2 (64 + 15)
+#define INT_MDP (64 + 16)
+#define INT_VPE (64 + 17)
+#define INT_GRP_2D (64 + 18)
+#define INT_GRP_3D (64 + 19)
+#define INT_ROTATOR (64 + 20)
+#define INT_MFC720 (64 + 21)
+#define INT_JPEG (64 + 22)
+#define INT_VFE (64 + 23)
+#define INT_TV_ENC (64 + 24)
+#define INT_PMIC_SSBI (64 + 25)
+#define INT_MPM_1 (64 + 26)
+#define INT_TCSR_SPSS_SAMPLE (64 + 27)
+#define INT_TCSR_SPSS_PENUP (64 + 28)
+#define INT_MPM_2 (64 + 29)
+#define INT_SDC1_0 (64 + 30)
+#define INT_SDC1_1 (64 + 31)
+
+#define INT_SDC3_0 (96 + 0)
+#define INT_SDC3_1 (96 + 1)
+#define INT_SDC2_0 (96 + 2)
+#define INT_SDC2_1 (96 + 3)
+#define INT_SDC4_0 (96 + 4)
+#define INT_SDC4_1 (96 + 5)
+#define INT_PWB_QUP_IN (96 + 6)
+#define INT_PWB_QUP_OUT (96 + 7)
+#define INT_PWB_QUP_ERR (96 + 8)
+/* SCSS_VICFIQSTS3[6:31] are RESERVED */
+
+/* Retrofit universal macro names */
+#define INT_ADM_AARM INT_ADM_SC2
+#define INT_USB_HS INT_USB_OTG_HS
+#define INT_USB_OTG INT_USB_OTG_HS
+#define INT_TCHSCRN1 INT_TSSC_SAMPLE
+#define INT_TCHSCRN2 INT_TSSC_PENUP
+#define INT_GP_TIMER_EXP INT_GPT0_TIMER_EXP
+#define INT_ADSP_A11 INT_AD5A_MPROC_APPS_0
+#define INT_ADSP_A9_A11 INT_AD5A_MPROC_APPS_1
+#define INT_MDDI_EXT INT_EMDH
+#define INT_MDDI_PRI INT_PMDH
+#define INT_MDDI_CLIENT INT_MDC
+#define INT_NAND_WR_ER_DONE INT_EBI2_WR_ER_DONE
+#define INT_NAND_OP_DONE INT_EBI2_OP_DONE
+
+#define NR_MSM_IRQS 128
+#define NR_GPIO_IRQS 182
+#define PMIC8058_IRQ_BASE (NR_MSM_IRQS + NR_GPIO_IRQS)
+#define NR_PMIC8058_GPIO_IRQS 40
+#define NR_PMIC8058_MPP_IRQS 12
+#define NR_PMIC8058_MISC_IRQS 8
+#define NR_PMIC8058_IRQS (NR_PMIC8058_GPIO_IRQS +\
+ NR_PMIC8058_MPP_IRQS +\
+ NR_PMIC8058_MISC_IRQS)
+#define NR_BOARD_IRQS NR_PMIC8058_IRQS
+
+#define NR_IRQS (NR_MSM_IRQS + NR_GPIO_IRQS + NR_BOARD_IRQS)
+
+#endif /* __ASM_ARCH_MSM_IRQS_7X30_H */
diff --git a/board/qcom/msm7630_surf/msm7630_surf.c b/board/qcom/msm7630_surf/msm7630_surf.c
index 95c9f04..9dcf95b 100644
--- a/board/qcom/msm7630_surf/msm7630_surf.c
+++ b/board/qcom/msm7630_surf/msm7630_surf.c
@@ -30,6 +30,8 @@
#include <asm/arch/proc_comm.h>
#include "msm7630_surf.h"

+int critical_section_count;
+
static struct msm_gpio uart2_gpio_table[] = {
{
.gpio_cfg = GPIO_CFG(49, 2, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_2MA),
@@ -61,6 +63,7 @@ void uart2_mux_init(void)
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f()
{
+ critical_section_count = 0;
uart2_mux_init();
uart2_clock_init();
return 0;
--
1.7.1