Merge tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARMv4T/v5 multiplatform support from Arnd Bergmann:
 "This series has been 12 years in the making, it mostly finishes the
  work that was started with the founding of Linaro to clean up platform
  support in the kernel.

  The largest change here is a cleanup of the omap1 platform, which is
  the final ARM machine type to get converted to the common-clk
  subsystem. All the omap1 specific drivers are now made independent of
  the mach/*.h headers to allow the platform to be part of a generic
  ARMv4/v5 multiplatform kernel.

  The last bit that enables this support is still missing here while we
  wait for some last dependencies to make it into the mainline kernel
  through other subsystems.

  The s3c24xx, ixp4xx, iop32x, ep93xx and dove platforms were all almost
  at the point of allowing multiplatform kernels, this work gets
  completed here along with a few additional cleanup. At the same time,
  the s3c24xx and s3c64xx are now deprecated and expected to get removed
  in the future.

  The PXA and OMAP1 bits are in a separate branch because of
  dependencies. Once both branches are merged, only the three Intel
  StrongARM platforms (RiscPC, Footbridge/NetWinder and StrongARM1100)
  need separate kernels, and there are no plans to include these"

* tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits)
  ARM: ixp4xx: Consolidate Kconfig fixing issue
  ARM: versatile: Add missing of_node_put in dcscb_init
  ARM: config: Refresh IXP4xx config after multiplatform
  ARM: omap1: add back omap_set_dma_priority() stub
  ARM: omap: fix missing declaration warnings
  ARM: omap: fix address space warnings from sparse
  ARM: spear: remove include/mach/ subdirectory
  ARM: davinci: remove include/mach/ subdirectory
  ARM: omap2: remove include/mach/ subdirectory
  integrator: remove empty ap_init_early()
  ARM: s3c: fix include path
  MAINTAINERS: omap1: Add Janusz as an additional maintainer
  ARM: omap1: htc_herald: fix typos in comments
  ARM: OMAP1: fix typos in comments
  ARM: OMAP1: clock: Remove noop code
  ARM: OMAP1: clock: Remove unused code
  ARM: OMAP1: clock: Fix UART rate reporting algorithm
  ARM: OMAP1: clock: Fix early UART rate issues
  ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF
  ARM: omap1: fix build with no SoC selected
  ...

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/mtd-xip.h b/arch/arm/mach-omap1/mtd-xip.h
new file mode 100644
index 000000000000..b675d501b13d
--- /dev/null
+++ b/arch/arm/mach-omap1/mtd-xip.h
@@ -0,0 +1,62 @@
+/*
+ * MTD primitives for XIP support. Architecture specific functions.
+ *
+ * Do not include this file directly. It's included from linux/mtd/xip.h
+ *
+ * Author: Vladimir Barinov <vbarinov@embeddedalley.com>
+ *
+ * (c) 2005 MontaVista Software, Inc.  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.
+ */
+
+#ifndef __ARCH_OMAP_MTD_XIP_H__
+#define __ARCH_OMAP_MTD_XIP_H__
+
+#include "hardware.h"
+#include <linux/soc/ti/omap1-io.h>
+#define OMAP_MPU_TIMER_BASE	(0xfffec500)
+#define OMAP_MPU_TIMER_OFFSET	0x100
+
+typedef struct {
+	u32 cntl;			/* CNTL_TIMER, R/W */
+	u32 load_tim;			/* LOAD_TIM,   W */
+	u32 read_tim;			/* READ_TIM,   R */
+} xip_omap_mpu_timer_regs_t;
+
+#define xip_omap_mpu_timer_base(n)					\
+((volatile xip_omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE +	\
+	(n)*OMAP_MPU_TIMER_OFFSET))
+
+static inline unsigned long xip_omap_mpu_timer_read(int nr)
+{
+	volatile xip_omap_mpu_timer_regs_t* timer = xip_omap_mpu_timer_base(nr);
+	return timer->read_tim;
+}
+
+#define xip_irqpending()	\
+	(omap_readl(OMAP_IH1_ITR) & ~omap_readl(OMAP_IH1_MIR))
+#define xip_currtime()		(~xip_omap_mpu_timer_read(0))
+
+/*
+ * It's permitted to do approximation for xip_elapsed_since macro
+ * (see linux/mtd/xip.h)
+ */
+
+#ifdef CONFIG_MACH_OMAP_PERSEUS2
+#define xip_elapsed_since(x)	(signed)((~xip_omap_mpu_timer_read(0) - (x)) / 7)
+#else
+#define xip_elapsed_since(x)	(signed)((~xip_omap_mpu_timer_read(0) - (x)) / 6)
+#endif
+
+/*
+ * xip_cpu_idle() is used when waiting for a delay equal or larger than
+ * the system timer tick period.  This should put the CPU into idle mode
+ * to save power and to be woken up only when some interrupts are pending.
+ * As above, this should not rely upon standard kernel code.
+ */
+
+#define xip_cpu_idle()  asm volatile ("mcr p15, 0, %0, c7, c0, 4" :: "r" (1))
+
+#endif /* __ARCH_OMAP_MTD_XIP_H__ */