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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-16 08:31:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-16 08:31:32 -0700
commit22c58fd70ca48a29505922b1563826593b08cc00 (patch)
treeee3154075bcd0a867fd0abf7e00ba3b4055999d4 /include/linux
parenta455eda33faafcaac1effb31d682765b14ef868c (diff)
parent7a0c4c17089a8aff52f516f0f52002be52950aae (diff)
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Olof Johansson: "SoC updates, mostly refactorings and cleanups of old legacy platforms. Major themes this release: - Conversion of ixp4xx to a modern platform (drivers, DT, bindings) - Moving some of the ep93xx headers around to get it closer to multiplatform enabled. - Cleanups of Davinci This also contains a few patches that were queued up as fixes before 5.1 but I didn't get sent in before release" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) ARM: debug-ll: add default address for digicolor ARM: u300: regulator: add MODULE_LICENSE() ARM: ep93xx: move private headers out of mach/* ARM: ep93xx: move pinctrl interfaces into include/linux/soc ARM: ep93xx: keypad: stop using mach/platform.h ARM: ep93xx: move network platform data to separate header ARM: stm32: add AMBA support for stm32 family MAINTAINERS: update arch/arm/mach-davinci ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu ARM: dts: Add queue manager and NPE to the IXP4xx DTSI soc: ixp4xx: qmgr: Add DT probe code soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr soc: ixp4xx: npe: Add DT probe code soc: ixp4xx: Add DT bindings for IXP4xx NPE soc: ixp4xx: qmgr: Pass resources soc: ixp4xx: Remove unused functions soc: ixp4xx: Uninline several functions soc: ixp4xx: npe: Pass addresses as resources ARM: ixp4xx: Turn the QMGR into a platform device ARM: ixp4xx: Turn the NPE into a platform device ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/firmware/trusted_foundations.h96
-rw-r--r--include/linux/irqchip/irq-ixp4xx.h12
-rw-r--r--include/linux/platform_data/eth-ep93xx.h10
-rw-r--r--include/linux/platform_data/keypad-ep93xx.h4
-rw-r--r--include/linux/platform_data/ti-sysc.h9
-rw-r--r--include/linux/platform_data/timer-ixp4xx.h11
-rw-r--r--include/linux/soc/cirrus/ep93xx.h37
-rw-r--r--include/linux/soc/ixp4xx/npe.h38
-rw-r--r--include/linux/soc/ixp4xx/qmgr.h91
9 files changed, 304 insertions, 4 deletions
diff --git a/include/linux/firmware/trusted_foundations.h b/include/linux/firmware/trusted_foundations.h
new file mode 100644
index 000000000000..4064e7c74715
--- /dev/null
+++ b/include/linux/firmware/trusted_foundations.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2013, NVIDIA Corporation.
+ *
+ * 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.
+ */
+
+/*
+ * Support for the Trusted Foundations secure monitor.
+ *
+ * Trusted Foundation comes active on some ARM consumer devices (most
+ * Tegra-based devices sold on the market are concerned). Such devices can only
+ * perform some basic operations, like setting the CPU reset vector, through
+ * SMC calls to the secure monitor. The calls are completely specific to
+ * Trusted Foundations, and do *not* follow the SMC calling convention or the
+ * PSCI standard.
+ */
+
+#ifndef __FIRMWARE_TRUSTED_FOUNDATIONS_H
+#define __FIRMWARE_TRUSTED_FOUNDATIONS_H
+
+#include <linux/printk.h>
+#include <linux/bug.h>
+#include <linux/of.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
+#include <linux/types.h>
+
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/outercache.h>
+
+#define TF_PM_MODE_LP0 0
+#define TF_PM_MODE_LP1 1
+#define TF_PM_MODE_LP1_NO_MC_CLK 2
+#define TF_PM_MODE_LP2 3
+#define TF_PM_MODE_LP2_NOFLUSH_L2 4
+
+struct trusted_foundations_platform_data {
+ unsigned int version_major;
+ unsigned int version_minor;
+};
+
+#if IS_ENABLED(CONFIG_TRUSTED_FOUNDATIONS)
+
+void register_trusted_foundations(struct trusted_foundations_platform_data *pd);
+void of_register_trusted_foundations(void);
+bool trusted_foundations_registered(void);
+
+#else /* CONFIG_TRUSTED_FOUNDATIONS */
+static inline void tf_dummy_write_sec(unsigned long val, unsigned int reg)
+{
+}
+
+static inline void register_trusted_foundations(
+ struct trusted_foundations_platform_data *pd)
+{
+ /*
+ * If the system requires TF and we cannot provide it, continue booting
+ * but disable features that cannot be provided.
+ */
+ pr_err("No support for Trusted Foundations, continuing in degraded mode.\n");
+ pr_err("Secondary processors as well as CPU PM will be disabled.\n");
+#if IS_ENABLED(CONFIG_CACHE_L2X0)
+ pr_err("L2X0 cache will be kept disabled.\n");
+ outer_cache.write_sec = tf_dummy_write_sec;
+#endif
+#if IS_ENABLED(CONFIG_SMP)
+ setup_max_cpus = 0;
+#endif
+ cpu_idle_poll_ctrl(true);
+}
+
+static inline void of_register_trusted_foundations(void)
+{
+ /*
+ * If we find the target should enable TF but does not support it,
+ * fail as the system won't be able to do much anyway
+ */
+ if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations"))
+ register_trusted_foundations(NULL);
+}
+
+static inline bool trusted_foundations_registered(void)
+{
+ return false;
+}
+#endif /* CONFIG_TRUSTED_FOUNDATIONS */
+
+#endif
diff --git a/include/linux/irqchip/irq-ixp4xx.h b/include/linux/irqchip/irq-ixp4xx.h
new file mode 100644
index 000000000000..9395917d6936
--- /dev/null
+++ b/include/linux/irqchip/irq-ixp4xx.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IRQ_IXP4XX_H
+#define __IRQ_IXP4XX_H
+
+#include <linux/ioport.h>
+struct irq_domain;
+
+void ixp4xx_irq_init(resource_size_t irqbase,
+ bool is_356);
+struct irq_domain *ixp4xx_get_irq_domain(void);
+
+#endif /* __IRQ_IXP4XX_H */
diff --git a/include/linux/platform_data/eth-ep93xx.h b/include/linux/platform_data/eth-ep93xx.h
new file mode 100644
index 000000000000..8eef637a804d
--- /dev/null
+++ b/include/linux/platform_data/eth-ep93xx.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_PLATFORM_DATA_ETH_EP93XX
+#define _LINUX_PLATFORM_DATA_ETH_EP93XX
+
+struct ep93xx_eth_data {
+ unsigned char dev_addr[6];
+ unsigned char phy_id;
+};
+
+#endif
diff --git a/include/linux/platform_data/keypad-ep93xx.h b/include/linux/platform_data/keypad-ep93xx.h
index 0e36818e3680..3054fced8509 100644
--- a/include/linux/platform_data/keypad-ep93xx.h
+++ b/include/linux/platform_data/keypad-ep93xx.h
@@ -9,8 +9,7 @@ struct matrix_keymap_data;
#define EP93XX_KEYPAD_DIAG_MODE (1<<1) /* diagnostic mode */
#define EP93XX_KEYPAD_BACK_DRIVE (1<<2) /* back driving mode */
#define EP93XX_KEYPAD_TEST_MODE (1<<3) /* scan only column 0 */
-#define EP93XX_KEYPAD_KDIV (1<<4) /* 1/4 clock or 1/16 clock */
-#define EP93XX_KEYPAD_AUTOREPEAT (1<<5) /* enable key autorepeat */
+#define EP93XX_KEYPAD_AUTOREPEAT (1<<4) /* enable key autorepeat */
/**
* struct ep93xx_keypad_platform_data - platform specific device structure
@@ -24,6 +23,7 @@ struct ep93xx_keypad_platform_data {
unsigned int debounce;
unsigned int prescale;
unsigned int flags;
+ unsigned int clk_rate;
};
#define EP93XX_MATRIX_ROWS (8)
diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h
index 1ea3aab972b4..9256c0305968 100644
--- a/include/linux/platform_data/ti-sysc.h
+++ b/include/linux/platform_data/ti-sysc.h
@@ -46,8 +46,13 @@ struct sysc_regbits {
s8 emufree_shift;
};
-#define SYSC_QUIRK_LEGACY_IDLE BIT(8)
-#define SYSC_QUIRK_RESET_STATUS BIT(7)
+#define SYSC_QUIRK_SWSUP_MSTANDBY BIT(13)
+#define SYSC_QUIRK_SWSUP_SIDLE_ACT BIT(12)
+#define SYSC_QUIRK_SWSUP_SIDLE BIT(11)
+#define SYSC_QUIRK_EXT_OPT_CLOCK BIT(10)
+#define SYSC_QUIRK_LEGACY_IDLE BIT(9)
+#define SYSC_QUIRK_RESET_STATUS BIT(8)
+#define SYSC_QUIRK_NO_IDLE BIT(7)
#define SYSC_QUIRK_NO_IDLE_ON_INIT BIT(6)
#define SYSC_QUIRK_NO_RESET_ON_INIT BIT(5)
#define SYSC_QUIRK_OPT_CLKS_NEEDED BIT(4)
diff --git a/include/linux/platform_data/timer-ixp4xx.h b/include/linux/platform_data/timer-ixp4xx.h
new file mode 100644
index 000000000000..ee92ae7edaed
--- /dev/null
+++ b/include/linux/platform_data/timer-ixp4xx.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TIMER_IXP4XX_H
+#define __TIMER_IXP4XX_H
+
+#include <linux/ioport.h>
+
+void __init ixp4xx_timer_setup(resource_size_t timerbase,
+ int timer_irq,
+ unsigned int timer_freq);
+
+#endif
diff --git a/include/linux/soc/cirrus/ep93xx.h b/include/linux/soc/cirrus/ep93xx.h
new file mode 100644
index 000000000000..56fbe2dc59b1
--- /dev/null
+++ b/include/linux/soc/cirrus/ep93xx.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SOC_EP93XX_H
+#define _SOC_EP93XX_H
+
+struct platform_device;
+
+#define EP93XX_CHIP_REV_D0 3
+#define EP93XX_CHIP_REV_D1 4
+#define EP93XX_CHIP_REV_E0 5
+#define EP93XX_CHIP_REV_E1 6
+#define EP93XX_CHIP_REV_E2 7
+
+#ifdef CONFIG_ARCH_EP93XX
+int ep93xx_pwm_acquire_gpio(struct platform_device *pdev);
+void ep93xx_pwm_release_gpio(struct platform_device *pdev);
+int ep93xx_ide_acquire_gpio(struct platform_device *pdev);
+void ep93xx_ide_release_gpio(struct platform_device *pdev);
+int ep93xx_keypad_acquire_gpio(struct platform_device *pdev);
+void ep93xx_keypad_release_gpio(struct platform_device *pdev);
+int ep93xx_i2s_acquire(void);
+void ep93xx_i2s_release(void);
+unsigned int ep93xx_chip_revision(void);
+
+#else
+static inline int ep93xx_pwm_acquire_gpio(struct platform_device *pdev) { return 0; }
+static inline void ep93xx_pwm_release_gpio(struct platform_device *pdev) {}
+static inline int ep93xx_ide_acquire_gpio(struct platform_device *pdev) { return 0; }
+static inline void ep93xx_ide_release_gpio(struct platform_device *pdev) {}
+static inline int ep93xx_keypad_acquire_gpio(struct platform_device *pdev) { return 0; }
+static inline void ep93xx_keypad_release_gpio(struct platform_device *pdev) {}
+static inline int ep93xx_i2s_acquire(void) { return 0; }
+static inline void ep93xx_i2s_release(void) {}
+static inline unsigned int ep93xx_chip_revision(void) { return 0; }
+
+#endif
+
+#endif
diff --git a/include/linux/soc/ixp4xx/npe.h b/include/linux/soc/ixp4xx/npe.h
new file mode 100644
index 000000000000..2a91f465d456
--- /dev/null
+++ b/include/linux/soc/ixp4xx/npe.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IXP4XX_NPE_H
+#define __IXP4XX_NPE_H
+
+#include <linux/kernel.h>
+
+extern const char *npe_names[];
+
+struct npe_regs {
+ u32 exec_addr, exec_data, exec_status_cmd, exec_count;
+ u32 action_points[4];
+ u32 watchpoint_fifo, watch_count;
+ u32 profile_count;
+ u32 messaging_status, messaging_control;
+ u32 mailbox_status, /*messaging_*/ in_out_fifo;
+};
+
+struct npe {
+ struct npe_regs __iomem *regs;
+ int id;
+ int valid;
+};
+
+
+static inline const char *npe_name(struct npe *npe)
+{
+ return npe_names[npe->id];
+}
+
+int npe_running(struct npe *npe);
+int npe_send_message(struct npe *npe, const void *msg, const char *what);
+int npe_recv_message(struct npe *npe, void *msg, const char *what);
+int npe_send_recv_message(struct npe *npe, void *msg, const char *what);
+int npe_load_firmware(struct npe *npe, const char *name, struct device *dev);
+struct npe *npe_request(unsigned id);
+void npe_release(struct npe *npe);
+
+#endif /* __IXP4XX_NPE_H */
diff --git a/include/linux/soc/ixp4xx/qmgr.h b/include/linux/soc/ixp4xx/qmgr.h
new file mode 100644
index 000000000000..bed8ee94fa57
--- /dev/null
+++ b/include/linux/soc/ixp4xx/qmgr.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+#ifndef IXP4XX_QMGR_H
+#define IXP4XX_QMGR_H
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+
+#define DEBUG_QMGR 0
+
+#define HALF_QUEUES 32
+#define QUEUES 64
+#define MAX_QUEUE_LENGTH 4 /* in dwords */
+
+#define QUEUE_STAT1_EMPTY 1 /* queue status bits */
+#define QUEUE_STAT1_NEARLY_EMPTY 2
+#define QUEUE_STAT1_NEARLY_FULL 4
+#define QUEUE_STAT1_FULL 8
+#define QUEUE_STAT2_UNDERFLOW 1
+#define QUEUE_STAT2_OVERFLOW 2
+
+#define QUEUE_WATERMARK_0_ENTRIES 0
+#define QUEUE_WATERMARK_1_ENTRY 1
+#define QUEUE_WATERMARK_2_ENTRIES 2
+#define QUEUE_WATERMARK_4_ENTRIES 3
+#define QUEUE_WATERMARK_8_ENTRIES 4
+#define QUEUE_WATERMARK_16_ENTRIES 5
+#define QUEUE_WATERMARK_32_ENTRIES 6
+#define QUEUE_WATERMARK_64_ENTRIES 7
+
+/* queue interrupt request conditions */
+#define QUEUE_IRQ_SRC_EMPTY 0
+#define QUEUE_IRQ_SRC_NEARLY_EMPTY 1
+#define QUEUE_IRQ_SRC_NEARLY_FULL 2
+#define QUEUE_IRQ_SRC_FULL 3
+#define QUEUE_IRQ_SRC_NOT_EMPTY 4
+#define QUEUE_IRQ_SRC_NOT_NEARLY_EMPTY 5
+#define QUEUE_IRQ_SRC_NOT_NEARLY_FULL 6
+#define QUEUE_IRQ_SRC_NOT_FULL 7
+
+struct qmgr_regs {
+ u32 acc[QUEUES][MAX_QUEUE_LENGTH]; /* 0x000 - 0x3FF */
+ u32 stat1[4]; /* 0x400 - 0x40F */
+ u32 stat2[2]; /* 0x410 - 0x417 */
+ u32 statne_h; /* 0x418 - queue nearly empty */
+ u32 statf_h; /* 0x41C - queue full */
+ u32 irqsrc[4]; /* 0x420 - 0x42F IRC source */
+ u32 irqen[2]; /* 0x430 - 0x437 IRQ enabled */
+ u32 irqstat[2]; /* 0x438 - 0x43F - IRQ access only */
+ u32 reserved[1776];
+ u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */
+};
+
+void qmgr_put_entry(unsigned int queue, u32 val);
+u32 qmgr_get_entry(unsigned int queue);
+int qmgr_stat_empty(unsigned int queue);
+int qmgr_stat_below_low_watermark(unsigned int queue);
+int qmgr_stat_full(unsigned int queue);
+int qmgr_stat_overflow(unsigned int queue);
+void qmgr_release_queue(unsigned int queue);
+void qmgr_set_irq(unsigned int queue, int src,
+ void (*handler)(void *pdev), void *pdev);
+void qmgr_enable_irq(unsigned int queue);
+void qmgr_disable_irq(unsigned int queue);
+
+/* request_ and release_queue() must be called from non-IRQ context */
+
+#if DEBUG_QMGR
+extern char qmgr_queue_descs[QUEUES][32];
+
+int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
+ unsigned int nearly_empty_watermark,
+ unsigned int nearly_full_watermark,
+ const char *desc_format, const char* name);
+#else
+int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
+ unsigned int nearly_empty_watermark,
+ unsigned int nearly_full_watermark);
+#define qmgr_request_queue(queue, len, nearly_empty_watermark, \
+ nearly_full_watermark, desc_format, name) \
+ __qmgr_request_queue(queue, len, nearly_empty_watermark, \
+ nearly_full_watermark)
+#endif
+
+#endif