ARM: Remove mach-msm and associated ARM architecture code

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-msm / proc_comm.c

diff --git a/arch/arm/mach-msm/proc_comm.c b/arch/arm/mach-msm/proc_comm.c
deleted file mode 100644 (file)
index 507f5ca..0000000
--- a/arch/arm/mach-msm/proc_comm.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* arch/arm/mach-msm/proc_comm.c
- *
- * Copyright (C) 2007-2008 Google, Inc.
- * Author: Brian Swetland <swetland@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * 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.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <mach/msm_iomap.h>
-
-#include "proc_comm.h"
-
-static inline void msm_a2m_int(uint32_t irq)
-{
-#if defined(CONFIG_ARCH_MSM7X30)
-       writel(1 << irq, MSM_GCC_BASE + 0x8);
-#else
-       writel(1, MSM_CSR_BASE + 0x400 + (irq * 4));
-#endif
-}
-
-static inline void notify_other_proc_comm(void)
-{
-       msm_a2m_int(6);
-}
-
-#define APP_COMMAND 0x00
-#define APP_STATUS  0x04
-#define APP_DATA1   0x08
-#define APP_DATA2   0x0C
-
-#define MDM_COMMAND 0x10
-#define MDM_STATUS  0x14
-#define MDM_DATA1   0x18
-#define MDM_DATA2   0x1C
-
-static DEFINE_SPINLOCK(proc_comm_lock);
-
-/* The higher level SMD support will install this to
- * provide a way to check for and handle modem restart.
- */
-int (*msm_check_for_modem_crash)(void);
-
-/* Poll for a state change, checking for possible
- * modem crashes along the way (so we don't wait
- * forever while the ARM9 is blowing up).
- *
- * Return an error in the event of a modem crash and
- * restart so the msm_proc_comm() routine can restart
- * the operation from the beginning.
- */
-static int proc_comm_wait_for(void __iomem *addr, unsigned value)
-{
-       for (;;) {
-               if (readl(addr) == value)
-                       return 0;
-
-               if (msm_check_for_modem_crash)
-                       if (msm_check_for_modem_crash())
-                               return -EAGAIN;
-       }
-}
-
-int msm_proc_comm(unsigned cmd, unsigned *data1, unsigned *data2)
-{
-       void __iomem *base = MSM_SHARED_RAM_BASE;
-       unsigned long flags;
-       int ret;
-
-       spin_lock_irqsave(&proc_comm_lock, flags);
-
-       for (;;) {
-               if (proc_comm_wait_for(base + MDM_STATUS, PCOM_READY))
-                       continue;
-
-               writel(cmd, base + APP_COMMAND);
-               writel(data1 ? *data1 : 0, base + APP_DATA1);
-               writel(data2 ? *data2 : 0, base + APP_DATA2);
-
-               notify_other_proc_comm();
-
-               if (proc_comm_wait_for(base + APP_COMMAND, PCOM_CMD_DONE))
-                       continue;
-
-               if (readl(base + APP_STATUS) != PCOM_CMD_FAIL) {
-                       if (data1)
-                               *data1 = readl(base + APP_DATA1);
-                       if (data2)
-                               *data2 = readl(base + APP_DATA2);
-                       ret = 0;
-               } else {
-                       ret = -EIO;
-               }
-               break;
-       }
-
-       writel(PCOM_CMD_IDLE, base + APP_COMMAND);
-
-       spin_unlock_irqrestore(&proc_comm_lock, flags);
-
-       return ret;
-}
-
-/*
- * We need to wait for the ARM9 to at least partially boot
- * up before we can continue. Since the ARM9 does resource
- * allocation, if we dont' wait we could end up crashing or in
- * and unknown state. This function should be called early to
- * wait on the ARM9.
- */
-void proc_comm_boot_wait(void)
-{
-       void __iomem *base = MSM_SHARED_RAM_BASE;
- 
-       proc_comm_wait_for(base + MDM_STATUS, PCOM_READY);
- 
-}