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authorLinus Torvalds <torvalds@linux-foundation.org>2019-09-16 15:48:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-16 15:48:14 -0700
commit2b97c39514a6130f38b14227a36d9cd37e650a9d (patch)
treedfc6ae0eb6c7acd46d170bd4d2c34e2d90bcf264 /include/linux
parentd0a16fe934383ecdb605ab9312d700fb9099f75e (diff)
parent0366977480c43a221e4309f242d1144e85a368c3 (diff)
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Arnd Bergmann: "The main change this time around is a cleanup of some of the oldest platforms based on the XScale and ARM9 CPU cores, which are between 10 and 20 years old. The Kendin/Micrel/Microchip KS8695, Winbond/Nuvoton W90x900 and Intel IOP33x/IOP13xx platforms are removed after we determined that nobody is using them any more. The TI Davinci and NXP LPC32xx platforms on the other hand are still in active use and are converted to the ARCH_MULTIPLATFORM build, meaning that we can compile a kernel that works on these along with most other ARMv5 platforms. Changes toward that goal are also merged for IOP32x, but additional work is needed to complete this. Patches for the remaining ARMv5 platforms have started but need more work and some testing. Support for the new ASpeed AST2600 gets added, this is based on the Cortex-A7 ARMv7 core, and is a newer version of the existing ARMv5 and ARMv6 chips in the same family. Other changes include a cleanup of the ST-Ericsson ux500 platform and the move of the TI Davinci platform to a new clocksource driver" [ The changes had marked INTEL_IOP_ADMA and USB_LPC32XX as being buildable on other platforms through COMPILE_TEST, but that causes new warnings that I most definitely do not want to see during the merge window as that could hide other issues. So the COMPILE_TEST option got disabled for them again - Linus ] * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits) ARM: multi_v5_defconfig: make DaVinci part of the ARM v5 multiplatform build ARM: davinci: support multiplatform build for ARM v5 arm64: exynos: Enable exynos-chipid driver ARM: OMAP2+: Delete an unnecessary kfree() call in omap_hsmmc_pdata_init() ARM: OMAP2+: move platform-specific asm-offset.h to arch/arm/mach-omap2 ARM: davinci: dm646x: Fix a typo in the comment ARM: davinci: dm646x: switch to using the clocksource driver ARM: davinci: dm644x: switch to using the clocksource driver ARM: aspeed: Enable SMP boot ARM: aspeed: Add ASPEED AST2600 architecture ARM: aspeed: Select timer in each SoC dt-bindings: arm: cpus: Add ASPEED SMP ARM: imx: stop adjusting ar8031 phy tx delay mailmap: map old company name to new one @microchip.com MAINTAINERS: at91: remove the TC entry MAINTAINERS: at91: Collect all pinctrl/gpio drivers in same entry ARM: at91: move platform-specific asm-offset.h to arch/arm/mach-at91 MAINTAINERS: Extend patterns for Samsung SoC, Security Subsystem and clock drivers ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.c ARM: debug-ll: Add support for r7s9210 ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/platform_data/dma-iop32x.h110
-rw-r--r--include/linux/soc/nxp/lpc32xx-misc.h33
-rw-r--r--include/linux/usb/samsung_usb_phy.h17
3 files changed, 143 insertions, 17 deletions
diff --git a/include/linux/platform_data/dma-iop32x.h b/include/linux/platform_data/dma-iop32x.h
new file mode 100644
index 000000000000..ac83cff89549
--- /dev/null
+++ b/include/linux/platform_data/dma-iop32x.h
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright © 2006, Intel Corporation.
+ */
+#ifndef IOP_ADMA_H
+#define IOP_ADMA_H
+#include <linux/types.h>
+#include <linux/dmaengine.h>
+#include <linux/interrupt.h>
+
+#define IOP_ADMA_SLOT_SIZE 32
+#define IOP_ADMA_THRESHOLD 4
+#ifdef DEBUG
+#define IOP_PARANOIA 1
+#else
+#define IOP_PARANOIA 0
+#endif
+#define iop_paranoia(x) BUG_ON(IOP_PARANOIA && (x))
+
+#define DMA0_ID 0
+#define DMA1_ID 1
+#define AAU_ID 2
+
+/**
+ * struct iop_adma_device - internal representation of an ADMA device
+ * @pdev: Platform device
+ * @id: HW ADMA Device selector
+ * @dma_desc_pool: base of DMA descriptor region (DMA address)
+ * @dma_desc_pool_virt: base of DMA descriptor region (CPU address)
+ * @common: embedded struct dma_device
+ */
+struct iop_adma_device {
+ struct platform_device *pdev;
+ int id;
+ dma_addr_t dma_desc_pool;
+ void *dma_desc_pool_virt;
+ struct dma_device common;
+};
+
+/**
+ * struct iop_adma_chan - internal representation of an ADMA device
+ * @pending: allows batching of hardware operations
+ * @lock: serializes enqueue/dequeue operations to the slot pool
+ * @mmr_base: memory mapped register base
+ * @chain: device chain view of the descriptors
+ * @device: parent device
+ * @common: common dmaengine channel object members
+ * @last_used: place holder for allocation to continue from where it left off
+ * @all_slots: complete domain of slots usable by the channel
+ * @slots_allocated: records the actual size of the descriptor slot pool
+ * @irq_tasklet: bottom half where iop_adma_slot_cleanup runs
+ */
+struct iop_adma_chan {
+ int pending;
+ spinlock_t lock; /* protects the descriptor slot pool */
+ void __iomem *mmr_base;
+ struct list_head chain;
+ struct iop_adma_device *device;
+ struct dma_chan common;
+ struct iop_adma_desc_slot *last_used;
+ struct list_head all_slots;
+ int slots_allocated;
+ struct tasklet_struct irq_tasklet;
+};
+
+/**
+ * struct iop_adma_desc_slot - IOP-ADMA software descriptor
+ * @slot_node: node on the iop_adma_chan.all_slots list
+ * @chain_node: node on the op_adma_chan.chain list
+ * @hw_desc: virtual address of the hardware descriptor chain
+ * @phys: hardware address of the hardware descriptor chain
+ * @group_head: first operation in a transaction
+ * @slot_cnt: total slots used in an transaction (group of operations)
+ * @slots_per_op: number of slots per operation
+ * @idx: pool index
+ * @tx_list: list of descriptors that are associated with one operation
+ * @async_tx: support for the async_tx api
+ * @group_list: list of slots that make up a multi-descriptor transaction
+ * for example transfer lengths larger than the supported hw max
+ * @xor_check_result: result of zero sum
+ * @crc32_result: result crc calculation
+ */
+struct iop_adma_desc_slot {
+ struct list_head slot_node;
+ struct list_head chain_node;
+ void *hw_desc;
+ struct iop_adma_desc_slot *group_head;
+ u16 slot_cnt;
+ u16 slots_per_op;
+ u16 idx;
+ struct list_head tx_list;
+ struct dma_async_tx_descriptor async_tx;
+ union {
+ u32 *xor_check_result;
+ u32 *crc32_result;
+ u32 *pq_check_result;
+ };
+};
+
+struct iop_adma_platform_data {
+ int hw_id;
+ dma_cap_mask_t cap_mask;
+ size_t pool_size;
+};
+
+#define to_iop_sw_desc(addr_hw_desc) \
+ container_of(addr_hw_desc, struct iop_adma_desc_slot, hw_desc)
+#define iop_hw_desc_slot_idx(hw_desc, idx) \
+ ( (void *) (((unsigned long) hw_desc) + ((idx) << 5)) )
+#endif
diff --git a/include/linux/soc/nxp/lpc32xx-misc.h b/include/linux/soc/nxp/lpc32xx-misc.h
new file mode 100644
index 000000000000..699c6f1e3aab
--- /dev/null
+++ b/include/linux/soc/nxp/lpc32xx-misc.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Author: Kevin Wells <kevin.wells@nxp.com>
+ *
+ * Copyright (C) 2010 NXP Semiconductors
+ */
+
+#ifndef __SOC_LPC32XX_MISC_H
+#define __SOC_LPC32XX_MISC_H
+
+#include <linux/types.h>
+#include <linux/phy.h>
+
+#ifdef CONFIG_ARCH_LPC32XX
+extern u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr);
+extern void lpc32xx_set_phy_interface_mode(phy_interface_t mode);
+extern void lpc32xx_loopback_set(resource_size_t mapbase, int state);
+#else
+static inline u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr)
+{
+ *mapbase = NULL;
+ *dmaaddr = 0;
+ return 0;
+}
+static inline void lpc32xx_set_phy_interface_mode(phy_interface_t mode)
+{
+}
+static inline void lpc32xx_loopback_set(resource_size_t mapbase, int state)
+{
+}
+#endif
+
+#endif /* __SOC_LPC32XX_MISC_H */
diff --git a/include/linux/usb/samsung_usb_phy.h b/include/linux/usb/samsung_usb_phy.h
deleted file mode 100644
index dc0071741695..000000000000
--- a/include/linux/usb/samsung_usb_phy.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2012 Samsung Electronics Co.Ltd
- * http://www.samsung.com/
- *
- * Defines phy types for samsung usb phy controllers - HOST or DEIVCE.
- *
- * 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.
- */
-
-enum samsung_usb_phy_type {
- USB_PHY_TYPE_DEVICE,
- USB_PHY_TYPE_HOST,
-};