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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 18:04:39 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 18:04:39 +0200
commitd0440c59f52d31aa7f74ba8e35cc22ee96acea84 (patch)
tree199470b64cdc30e9f0f7ecd5286ff7cc2e0a969d /arch/arm/mach-msm/proc_comm.c
parentMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm... (diff)
parentMerge tag 'imx-cleanup-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
downloadlinux-d0440c59f52d31aa7f74ba8e35cc22ee96acea84.tar.xz
linux-d0440c59f52d31aa7f74ba8e35cc22ee96acea84.zip
Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson: "We've got a fairly large cleanup branch this time. The bulk of this is removal of non-DT platforms of several flavors: - Atmel at91 platforms go full-DT, with removal of remaining board-file based support - OMAP removes legacy board files for three more platforms - removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom - Freescale i.MX25 also removes non-DT platform support" Most of the rest of the changes here are fallout from the above, i.e. for example removal of drivers that now lack platforms, etc. * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits) mmc: Remove msm_sdcc driver gpio: Remove gpio-msm-v1 driver ARM: Remove mach-msm and associated ARM architecture code ARM: shmobile: cpuidle: Remove the pointless default driver ARM: davinci: dm646x: Add interrupt resource for McASPs ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x ARM: davinci: dm646x: Clean up the McASP DMA resources ARM: davinci: devices-da8xx: Add support for McASP2 on da830 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request ARM: OMAP2+: Remove legacy support for omap3 TouchBook ARM: OMAP3: Remove legacy support for devkit8000 ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board ARM: shmobile: Consolidate the pm code for R-Car Gen2 ARM: shmobile: r8a7791: Correct SYSCIER value ARM: shmobile: r8a7790: Correct SYSCIER value ARM: at91: remove old setup ARM: at91: sama5d4: remove useless map_io ARM: at91: sama5 use SoC detection infrastructure ...
Diffstat (limited to 'arch/arm/mach-msm/proc_comm.c')
-rw-r--r--arch/arm/mach-msm/proc_comm.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/arch/arm/mach-msm/proc_comm.c b/arch/arm/mach-msm/proc_comm.c
deleted file mode 100644
index 507f5ca80697..000000000000
--- 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);
-
-}