diff options
author | Arnd Bergmann | 2019-09-20 13:33:40 +0200 |
---|---|---|
committer | Arnd Bergmann | 2022-05-07 22:56:16 +0200 |
commit | 64dbc4dd7a7cc6642c522963a6194b62480e2a68 (patch) | |
tree | 9f8baa0b70be0f72ec3a8901b4ac63f40b4abd7d /arch | |
parent | 6922a3d14e85040c022bbad23af4de5c03557e21 (diff) |
ARM: pxa: move plat-pxa to drivers/soc/
There are two drivers in arch/arm/plat-pxa: mfp and ssp. Both
of them should ideally not be needed at all, as there are
proper subsystems to replace them.
OTOH, they are self-contained and can simply be normal
SoC drivers, so move them over there to eliminate one more
of the plat-* directories.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> (mach-pxa)
Acked-by: Lubomir Rintel <lkundrak@v3.sk> (mach-mmp)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/Kconfig | 4 | ||||
-rw-r--r-- | arch/arm/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-mmp/mfp.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/include/mach/mfp.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/mfp-pxa2xx.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/mfp-pxa3xx.h | 2 | ||||
-rw-r--r-- | arch/arm/plat-pxa/Kconfig | 9 | ||||
-rw-r--r-- | arch/arm/plat-pxa/Makefile | 10 | ||||
-rw-r--r-- | arch/arm/plat-pxa/include/plat/mfp.h | 472 | ||||
-rw-r--r-- | arch/arm/plat-pxa/mfp.c | 282 | ||||
-rw-r--r-- | arch/arm/plat-pxa/ssp.c | 231 |
11 files changed, 4 insertions, 1013 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2e8091e2d8a8..eef8cbf20045 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -667,7 +667,6 @@ source "arch/arm/mach-orion5x/Kconfig" source "arch/arm/mach-oxnas/Kconfig" source "arch/arm/mach-pxa/Kconfig" -source "arch/arm/plat-pxa/Kconfig" source "arch/arm/mach-qcom/Kconfig" @@ -753,9 +752,6 @@ config PLAT_ORION_LEGACY bool select PLAT_ORION -config PLAT_PXA - bool - config PLAT_VERSATILE bool diff --git a/arch/arm/Makefile b/arch/arm/Makefile index a2391b8de5a5..206a900fc87c 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -230,7 +230,6 @@ machine-$(CONFIG_PLAT_SPEAR) += spear # by CONFIG_* macro name. plat-$(CONFIG_ARCH_OMAP) += omap plat-$(CONFIG_PLAT_ORION) += orion -plat-$(CONFIG_PLAT_PXA) += pxa plat-$(CONFIG_PLAT_VERSATILE) += versatile # The byte offset of the kernel image in RAM from the start of RAM. diff --git a/arch/arm/mach-mmp/mfp.h b/arch/arm/mach-mmp/mfp.h index 75a4acb33b1b..6f3057987756 100644 --- a/arch/arm/mach-mmp/mfp.h +++ b/arch/arm/mach-mmp/mfp.h @@ -2,7 +2,7 @@ #ifndef __ASM_MACH_MFP_H #define __ASM_MACH_MFP_H -#include <plat/mfp.h> +#include <linux/soc/pxa/mfp.h> /* * NOTE: the MFPR register bit definitions on PXA168 processor lines are a diff --git a/arch/arm/mach-pxa/include/mach/mfp.h b/arch/arm/mach-pxa/include/mach/mfp.h index dbb961fb570e..7e0879bd4102 100644 --- a/arch/arm/mach-pxa/include/mach/mfp.h +++ b/arch/arm/mach-pxa/include/mach/mfp.h @@ -13,6 +13,6 @@ #ifndef __ASM_ARCH_MFP_H #define __ASM_ARCH_MFP_H -#include <plat/mfp.h> +#include <linux/soc/pxa/mfp.h> #endif /* __ASM_ARCH_MFP_H */ diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.h b/arch/arm/mach-pxa/mfp-pxa2xx.h index 980145e7ee99..683a3ea5f154 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.h +++ b/arch/arm/mach-pxa/mfp-pxa2xx.h @@ -2,7 +2,7 @@ #ifndef __ASM_ARCH_MFP_PXA2XX_H #define __ASM_ARCH_MFP_PXA2XX_H -#include <plat/mfp.h> +#include <linux/soc/pxa/mfp.h> /* * the following MFP_xxx bit definitions in mfp.h are re-used for pxa2xx: diff --git a/arch/arm/mach-pxa/mfp-pxa3xx.h b/arch/arm/mach-pxa/mfp-pxa3xx.h index cdd830926d1c..81fec4fa5a0f 100644 --- a/arch/arm/mach-pxa/mfp-pxa3xx.h +++ b/arch/arm/mach-pxa/mfp-pxa3xx.h @@ -2,7 +2,7 @@ #ifndef __ASM_ARCH_MFP_PXA3XX_H #define __ASM_ARCH_MFP_PXA3XX_H -#include <plat/mfp.h> +#include <linux/soc/pxa/mfp.h> #define MFPR_BASE (0x40e10000) diff --git a/arch/arm/plat-pxa/Kconfig b/arch/arm/plat-pxa/Kconfig deleted file mode 100644 index 6f7a0a39c2b9..000000000000 --- a/arch/arm/plat-pxa/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -if PLAT_PXA - -config PXA_SSP - tristate - help - Enable support for PXA2xx SSP ports - -endif diff --git a/arch/arm/plat-pxa/Makefile b/arch/arm/plat-pxa/Makefile deleted file mode 100644 index 349ea0af8450..000000000000 --- a/arch/arm/plat-pxa/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for code common across different PXA processor families -# -ccflags-$(CONFIG_ARCH_MMP) := -I$(srctree)/$(src)/include - -obj-$(CONFIG_PXA3xx) += mfp.o -obj-$(CONFIG_ARCH_MMP) += mfp.o - -obj-$(CONFIG_PXA_SSP) += ssp.o diff --git a/arch/arm/plat-pxa/include/plat/mfp.h b/arch/arm/plat-pxa/include/plat/mfp.h deleted file mode 100644 index 3accaa9ee781..000000000000 --- a/arch/arm/plat-pxa/include/plat/mfp.h +++ /dev/null @@ -1,472 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * arch/arm/plat-pxa/include/plat/mfp.h - * - * Common Multi-Function Pin Definitions - * - * Copyright (C) 2007 Marvell International Ltd. - * - * 2007-8-21: eric miao <eric.miao@marvell.com> - * initial version - */ - -#ifndef __ASM_PLAT_MFP_H -#define __ASM_PLAT_MFP_H - -#define mfp_to_gpio(m) ((m) % 256) - -/* list of all the configurable MFP pins */ -enum { - MFP_PIN_INVALID = -1, - - MFP_PIN_GPIO0 = 0, - MFP_PIN_GPIO1, - MFP_PIN_GPIO2, - MFP_PIN_GPIO3, - MFP_PIN_GPIO4, - MFP_PIN_GPIO5, - MFP_PIN_GPIO6, - MFP_PIN_GPIO7, - MFP_PIN_GPIO8, - MFP_PIN_GPIO9, - MFP_PIN_GPIO10, - MFP_PIN_GPIO11, - MFP_PIN_GPIO12, - MFP_PIN_GPIO13, - MFP_PIN_GPIO14, - MFP_PIN_GPIO15, - MFP_PIN_GPIO16, - MFP_PIN_GPIO17, - MFP_PIN_GPIO18, - MFP_PIN_GPIO19, - MFP_PIN_GPIO20, - MFP_PIN_GPIO21, - MFP_PIN_GPIO22, - MFP_PIN_GPIO23, - MFP_PIN_GPIO24, - MFP_PIN_GPIO25, - MFP_PIN_GPIO26, - MFP_PIN_GPIO27, - MFP_PIN_GPIO28, - MFP_PIN_GPIO29, - MFP_PIN_GPIO30, - MFP_PIN_GPIO31, - MFP_PIN_GPIO32, - MFP_PIN_GPIO33, - MFP_PIN_GPIO34, - MFP_PIN_GPIO35, - MFP_PIN_GPIO36, - MFP_PIN_GPIO37, - MFP_PIN_GPIO38, - MFP_PIN_GPIO39, - MFP_PIN_GPIO40, - MFP_PIN_GPIO41, - MFP_PIN_GPIO42, - MFP_PIN_GPIO43, - MFP_PIN_GPIO44, - MFP_PIN_GPIO45, - MFP_PIN_GPIO46, - MFP_PIN_GPIO47, - MFP_PIN_GPIO48, - MFP_PIN_GPIO49, - MFP_PIN_GPIO50, - MFP_PIN_GPIO51, - MFP_PIN_GPIO52, - MFP_PIN_GPIO53, - MFP_PIN_GPIO54, - MFP_PIN_GPIO55, - MFP_PIN_GPIO56, - MFP_PIN_GPIO57, - MFP_PIN_GPIO58, - MFP_PIN_GPIO59, - MFP_PIN_GPIO60, - MFP_PIN_GPIO61, - MFP_PIN_GPIO62, - MFP_PIN_GPIO63, - MFP_PIN_GPIO64, - MFP_PIN_GPIO65, - MFP_PIN_GPIO66, - MFP_PIN_GPIO67, - MFP_PIN_GPIO68, - MFP_PIN_GPIO69, - MFP_PIN_GPIO70, - MFP_PIN_GPIO71, - MFP_PIN_GPIO72, - MFP_PIN_GPIO73, - MFP_PIN_GPIO74, - MFP_PIN_GPIO75, - MFP_PIN_GPIO76, - MFP_PIN_GPIO77, - MFP_PIN_GPIO78, - MFP_PIN_GPIO79, - MFP_PIN_GPIO80, - MFP_PIN_GPIO81, - MFP_PIN_GPIO82, - MFP_PIN_GPIO83, - MFP_PIN_GPIO84, - MFP_PIN_GPIO85, - MFP_PIN_GPIO86, - MFP_PIN_GPIO87, - MFP_PIN_GPIO88, - MFP_PIN_GPIO89, - MFP_PIN_GPIO90, - MFP_PIN_GPIO91, - MFP_PIN_GPIO92, - MFP_PIN_GPIO93, - MFP_PIN_GPIO94, - MFP_PIN_GPIO95, - MFP_PIN_GPIO96, - MFP_PIN_GPIO97, - MFP_PIN_GPIO98, - MFP_PIN_GPIO99, - MFP_PIN_GPIO100, - MFP_PIN_GPIO101, - MFP_PIN_GPIO102, - MFP_PIN_GPIO103, - MFP_PIN_GPIO104, - MFP_PIN_GPIO105, - MFP_PIN_GPIO106, - MFP_PIN_GPIO107, - MFP_PIN_GPIO108, - MFP_PIN_GPIO109, - MFP_PIN_GPIO110, - MFP_PIN_GPIO111, - MFP_PIN_GPIO112, - MFP_PIN_GPIO113, - MFP_PIN_GPIO114, - MFP_PIN_GPIO115, - MFP_PIN_GPIO116, - MFP_PIN_GPIO117, - MFP_PIN_GPIO118, - MFP_PIN_GPIO119, - MFP_PIN_GPIO120, - MFP_PIN_GPIO121, - MFP_PIN_GPIO122, - MFP_PIN_GPIO123, - MFP_PIN_GPIO124, - MFP_PIN_GPIO125, - MFP_PIN_GPIO126, - MFP_PIN_GPIO127, - - MFP_PIN_GPIO128, - MFP_PIN_GPIO129, - MFP_PIN_GPIO130, - MFP_PIN_GPIO131, - MFP_PIN_GPIO132, - MFP_PIN_GPIO133, - MFP_PIN_GPIO134, - MFP_PIN_GPIO135, - MFP_PIN_GPIO136, - MFP_PIN_GPIO137, - MFP_PIN_GPIO138, - MFP_PIN_GPIO139, - MFP_PIN_GPIO140, - MFP_PIN_GPIO141, - MFP_PIN_GPIO142, - MFP_PIN_GPIO143, - MFP_PIN_GPIO144, - MFP_PIN_GPIO145, - MFP_PIN_GPIO146, - MFP_PIN_GPIO147, - MFP_PIN_GPIO148, - MFP_PIN_GPIO149, - MFP_PIN_GPIO150, - MFP_PIN_GPIO151, - MFP_PIN_GPIO152, - MFP_PIN_GPIO153, - MFP_PIN_GPIO154, - MFP_PIN_GPIO155, - MFP_PIN_GPIO156, - MFP_PIN_GPIO157, - MFP_PIN_GPIO158, - MFP_PIN_GPIO159, - MFP_PIN_GPIO160, - MFP_PIN_GPIO161, - MFP_PIN_GPIO162, - MFP_PIN_GPIO163, - MFP_PIN_GPIO164, - MFP_PIN_GPIO165, - MFP_PIN_GPIO166, - MFP_PIN_GPIO167, - MFP_PIN_GPIO168, - MFP_PIN_GPIO169, - MFP_PIN_GPIO170, - MFP_PIN_GPIO171, - MFP_PIN_GPIO172, - MFP_PIN_GPIO173, - MFP_PIN_GPIO174, - MFP_PIN_GPIO175, - MFP_PIN_GPIO176, - MFP_PIN_GPIO177, - MFP_PIN_GPIO178, - MFP_PIN_GPIO179, - MFP_PIN_GPIO180, - MFP_PIN_GPIO181, - MFP_PIN_GPIO182, - MFP_PIN_GPIO183, - MFP_PIN_GPIO184, - MFP_PIN_GPIO185, - MFP_PIN_GPIO186, - MFP_PIN_GPIO187, - MFP_PIN_GPIO188, - MFP_PIN_GPIO189, - MFP_PIN_GPIO190, - MFP_PIN_GPIO191, - - MFP_PIN_GPIO255 = 255, - - MFP_PIN_GPIO0_2, - MFP_PIN_GPIO1_2, - MFP_PIN_GPIO2_2, - MFP_PIN_GPIO3_2, - MFP_PIN_GPIO4_2, - MFP_PIN_GPIO5_2, - MFP_PIN_GPIO6_2, - MFP_PIN_GPIO7_2, - MFP_PIN_GPIO8_2, - MFP_PIN_GPIO9_2, - MFP_PIN_GPIO10_2, - MFP_PIN_GPIO11_2, - MFP_PIN_GPIO12_2, - MFP_PIN_GPIO13_2, - MFP_PIN_GPIO14_2, - MFP_PIN_GPIO15_2, - MFP_PIN_GPIO16_2, - MFP_PIN_GPIO17_2, - - MFP_PIN_ULPI_STP, - MFP_PIN_ULPI_NXT, - MFP_PIN_ULPI_DIR, - - MFP_PIN_nXCVREN, - MFP_PIN_DF_CLE_nOE, - MFP_PIN_DF_nADV1_ALE, - MFP_PIN_DF_SCLK_E, - MFP_PIN_DF_SCLK_S, - MFP_PIN_nBE0, - MFP_PIN_nBE1, - MFP_PIN_DF_nADV2_ALE, - MFP_PIN_DF_INT_RnB, - MFP_PIN_DF_nCS0, - MFP_PIN_DF_nCS1, - MFP_PIN_nLUA, - MFP_PIN_nLLA, - MFP_PIN_DF_nWE, - MFP_PIN_DF_ALE_nWE, - MFP_PIN_DF_nRE_nOE, - MFP_PIN_DF_ADDR0, - MFP_PIN_DF_ADDR1, - MFP_PIN_DF_ADDR2, - MFP_PIN_DF_ADDR3, - MFP_PIN_DF_IO0, - MFP_PIN_DF_IO1, - MFP_PIN_DF_IO2, - MFP_PIN_DF_IO3, - MFP_PIN_DF_IO4, - MFP_PIN_DF_IO5, - MFP_PIN_DF_IO6, - MFP_PIN_DF_IO7, - MFP_PIN_DF_IO8, - MFP_PIN_DF_IO9, - MFP_PIN_DF_IO10, - MFP_PIN_DF_IO11, - MFP_PIN_DF_IO12, - MFP_PIN_DF_IO13, - MFP_PIN_DF_IO14, - MFP_PIN_DF_IO15, - MFP_PIN_DF_nCS0_SM_nCS2, - MFP_PIN_DF_nCS1_SM_nCS3, - MFP_PIN_SM_nCS0, - MFP_PIN_SM_nCS1, - MFP_PIN_DF_WEn, - MFP_PIN_DF_REn, - MFP_PIN_DF_CLE_SM_OEn, - MFP_PIN_DF_ALE_SM_WEn, - MFP_PIN_DF_RDY0, - MFP_PIN_DF_RDY1, - - MFP_PIN_SM_SCLK, - MFP_PIN_SM_BE0, - MFP_PIN_SM_BE1, - MFP_PIN_SM_ADV, - MFP_PIN_SM_ADVMUX, - MFP_PIN_SM_RDY, - - MFP_PIN_MMC1_DAT7, - MFP_PIN_MMC1_DAT6, - MFP_PIN_MMC1_DAT5, - MFP_PIN_MMC1_DAT4, - MFP_PIN_MMC1_DAT3, - MFP_PIN_MMC1_DAT2, - MFP_PIN_MMC1_DAT1, - MFP_PIN_MMC1_DAT0, - MFP_PIN_MMC1_CMD, - MFP_PIN_MMC1_CLK, - MFP_PIN_MMC1_CD, - MFP_PIN_MMC1_WP, - - /* additional pins on PXA930 */ - MFP_PIN_GSIM_UIO, - MFP_PIN_GSIM_UCLK, - MFP_PIN_GSIM_UDET, - MFP_PIN_GSIM_nURST, - MFP_PIN_PMIC_INT, - MFP_PIN_RDY, - - /* additional pins on MMP2 */ - MFP_PIN_TWSI1_SCL, - MFP_PIN_TWSI1_SDA, - MFP_PIN_TWSI4_SCL, - MFP_PIN_TWSI4_SDA, - MFP_PIN_CLK_REQ, - - MFP_PIN_MAX, -}; - -/* - * a possible MFP configuration is represented by a 32-bit integer - * - * bit 0.. 9 - MFP Pin Number (1024 Pins Maximum) - * bit 10..12 - Alternate Function Selection - * bit 13..15 - Drive Strength - * bit 16..18 - Low Power Mode State - * bit 19..20 - Low Power Mode Edge Detection - * bit 21..22 - Run Mode Pull State - * - * to facilitate the definition, the following macros are provided - * - * MFP_CFG_DEFAULT - default MFP configuration value, with - * alternate function = 0, - * drive strength = fast 3mA (MFP_DS03X) - * low power mode = default - * edge detection = none - * - * MFP_CFG - default MFPR value with alternate function - * MFP_CFG_DRV - default MFPR value with alternate function and - * pin drive strength - * MFP_CFG_LPM - default MFPR value with alternate function and - * low power mode - * MFP_CFG_X - default MFPR value with alternate function, - * pin drive strength and low power mode - */ - -typedef unsigned long mfp_cfg_t; - -#define MFP_PIN(x) ((x) & 0x3ff) - -#define MFP_AF0 (0x0 << 10) -#define MFP_AF1 (0x1 << 10) -#define MFP_AF2 (0x2 << 10) -#define MFP_AF3 (0x3 << 10) -#define MFP_AF4 (0x4 << 10) -#define MFP_AF5 (0x5 << 10) -#define MFP_AF6 (0x6 << 10) -#define MFP_AF7 (0x7 << 10) -#define MFP_AF_MASK (0x7 << 10) -#define MFP_AF(x) (((x) >> 10) & 0x7) - -#define MFP_DS01X (0x0 << 13) -#define MFP_DS02X (0x1 << 13) -#define MFP_DS03X (0x2 << 13) -#define MFP_DS04X (0x3 << 13) -#define MFP_DS06X (0x4 << 13) -#define MFP_DS08X (0x5 << 13) -#define MFP_DS10X (0x6 << 13) -#define MFP_DS13X (0x7 << 13) -#define MFP_DS_MASK (0x7 << 13) -#define MFP_DS(x) (((x) >> 13) & 0x7) - -#define MFP_LPM_DEFAULT (0x0 << 16) -#define MFP_LPM_DRIVE_LOW (0x1 << 16) -#define MFP_LPM_DRIVE_HIGH (0x2 << 16) -#define MFP_LPM_PULL_LOW (0x3 << 16) -#define MFP_LPM_PULL_HIGH (0x4 << 16) -#define MFP_LPM_FLOAT (0x5 << 16) -#define MFP_LPM_INPUT (0x6 << 16) -#define MFP_LPM_STATE_MASK (0x7 << 16) -#define MFP_LPM_STATE(x) (((x) >> 16) & 0x7) - -#define MFP_LPM_EDGE_NONE (0x0 << 19) -#define MFP_LPM_EDGE_RISE (0x1 << 19) -#define MFP_LPM_EDGE_FALL (0x2 << 19) -#define MFP_LPM_EDGE_BOTH (0x3 << 19) -#define MFP_LPM_EDGE_MASK (0x3 << 19) -#define MFP_LPM_EDGE(x) (((x) >> 19) & 0x3) - -#define MFP_PULL_NONE (0x0 << 21) -#define MFP_PULL_LOW (0x1 << 21) -#define MFP_PULL_HIGH (0x2 << 21) -#define MFP_PULL_BOTH (0x3 << 21) -#define MFP_PULL_FLOAT (0x4 << 21) -#define MFP_PULL_MASK (0x7 << 21) -#define MFP_PULL(x) (((x) >> 21) & 0x7) - -#define MFP_CFG_DEFAULT (MFP_AF0 | MFP_DS03X | MFP_LPM_DEFAULT |\ - MFP_LPM_EDGE_NONE | MFP_PULL_NONE) - -#define MFP_CFG(pin, af) \ - ((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\ - (MFP_PIN(MFP_PIN_##pin) | MFP_##af)) - -#define MFP_CFG_DRV(pin, af, drv) \ - ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\ - (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv)) - -#define MFP_CFG_LPM(pin, af, lpm) \ - ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\ - (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm)) - -#define MFP_CFG_X(pin, af, drv, lpm) \ - ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\ - (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm)) - -#if defined(CONFIG_PXA3xx) || defined(CONFIG_ARCH_MMP) -/* - * each MFP pin will have a MFPR register, since the offset of the - * register varies between processors, the processor specific code - * should initialize the pin offsets by mfp_init() - * - * mfp_init_base() - accepts a virtual base for all MFPR registers and - * initialize the MFP table to a default state - * - * mfp_init_addr() - accepts a table of "mfp_addr_map" structure, which - * represents a range of MFP pins from "start" to "end", with the offset - * beginning at "offset", to define a single pin, let "end" = -1. - * - * use - * - * MFP_ADDR_X() to define a range of pins - * MFP_ADDR() to define a single pin - * MFP_ADDR_END to signal the end of pin offset definitions - */ -struct mfp_addr_map { - unsigned int start; - unsigned int end; - unsigned long offset; -}; - -#define MFP_ADDR_X(start, end, offset) \ - { MFP_PIN_##start, MFP_PIN_##end, offset } - -#define MFP_ADDR(pin, offset) \ - { MFP_PIN_##pin, -1, offset } - -#define MFP_ADDR_END { MFP_PIN_INVALID, 0 } - -void __init mfp_init_base(void __iomem *mfpr_base); -void __init mfp_init_addr(struct mfp_addr_map *map); - -/* - * mfp_{read, write}() - for direct read/write access to the MFPR register - * mfp_config() - for configuring a group of MFPR registers - * mfp_config_lpm() - configuring all low power MFPR registers for suspend - * mfp_config_run() - configuring all run time MFPR registers after resume - */ -unsigned long mfp_read(int mfp); -void mfp_write(int mfp, unsigned long mfpr_val); -void mfp_config(unsigned long *mfp_cfgs, int num); -void mfp_config_run(void); -void mfp_config_lpm(void); -#endif /* CONFIG_PXA3xx || CONFIG_ARCH_MMP */ - -#endif /* __ASM_PLAT_MFP_H */ diff --git a/arch/arm/plat-pxa/mfp.c b/arch/arm/plat-pxa/mfp.c deleted file mode 100644 index 17fc4f33f35b..000000000000 --- a/arch/arm/plat-pxa/mfp.c +++ /dev/null @@ -1,282 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * linux/arch/arm/plat-pxa/mfp.c - * - * Multi-Function Pin Support - * - * Copyright (C) 2007 Marvell Internation Ltd. - * - * 2007-08-21: eric miao <eric.miao@marvell.com> - * initial version - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <plat/mfp.h> - -#define MFPR_SIZE (PAGE_SIZE) - -/* MFPR register bit definitions */ -#define MFPR_PULL_SEL (0x1 << 15) -#define MFPR_PULLUP_EN (0x1 << 14) -#define MFPR_PULLDOWN_EN (0x1 << 13) -#define MFPR_SLEEP_SEL (0x1 << 9) -#define MFPR_SLEEP_OE_N (0x1 << 7) -#define MFPR_EDGE_CLEAR (0x1 << 6) -#define MFPR_EDGE_FALL_EN (0x1 << 5) -#define MFPR_EDGE_RISE_EN (0x1 << 4) - -#define MFPR_SLEEP_DATA(x) ((x) << 8) -#define MFPR_DRIVE(x) (((x) & 0x7) << 10) -#define MFPR_AF_SEL(x) (((x) & 0x7) << 0) - -#define MFPR_EDGE_NONE (0) -#define MFPR_EDGE_RISE (MFPR_EDGE_RISE_EN) -#define MFPR_EDGE_FALL (MFPR_EDGE_FALL_EN) -#define MFPR_EDGE_BOTH (MFPR_EDGE_RISE | MFPR_EDGE_FALL) - -/* - * Table that determines the low power modes outputs, with actual settings - * used in parentheses for don't-care values. Except for the float output, - * the configured driven and pulled levels match, so if there is a need for - * non-LPM pulled output, the same configuration could probably be used. - * - * Output value sleep_oe_n sleep_data pullup_en pulldown_en pull_sel - * (bit 7) (bit 8) (bit 14) (bit 13) (bit 15) - * - * Input 0 X(0) X(0) X(0) 0 - * Drive 0 0 0 0 X(1) 0 - * Drive 1 0 1 X(1) 0 0 - * Pull hi (1) 1 X(1) 1 0 0 - * Pull lo (0) 1 X(0) 0 1 0 - * Z (float) 1 X(0) 0 0 0 - */ -#define MFPR_LPM_INPUT (0) -#define MFPR_LPM_DRIVE_LOW (MFPR_SLEEP_DATA(0) | MFPR_PULLDOWN_EN) -#define MFPR_LPM_DRIVE_HIGH (MFPR_SLEEP_DATA(1) | MFPR_PULLUP_EN) -#define MFPR_LPM_PULL_LOW (MFPR_LPM_DRIVE_LOW | MFPR_SLEEP_OE_N) -#define MFPR_LPM_PULL_HIGH (MFPR_LPM_DRIVE_HIGH | MFPR_SLEEP_OE_N) -#define MFPR_LPM_FLOAT (MFPR_SLEEP_OE_N) -#define MFPR_LPM_MASK (0xe080) - -/* - * The pullup and pulldown state of the MFP pin at run mode is by default - * determined by the selected alternate function. In case that some buggy - * devices need to override this default behavior, the definitions below - * indicates the setting of corresponding MFPR bits - * - * Definition pull_sel pullup_en pulldown_en - * MFPR_PULL_NONE 0 0 0 - * MFPR_PULL_LOW 1 0 1 - * MFPR_PULL_HIGH 1 1 0 - * MFPR_PULL_BOTH 1 1 1 - * MFPR_PULL_FLOAT 1 0 0 - */ -#define MFPR_PULL_NONE (0) -#define MFPR_PULL_LOW (MFPR_PULL_SEL | MFPR_PULLDOWN_EN) -#define MFPR_PULL_BOTH (MFPR_PULL_LOW | MFPR_PULLUP_EN) -#define MFPR_PULL_HIGH (MFPR_PULL_SEL | MFPR_PULLUP_EN) -#define MFPR_PULL_FLOAT (MFPR_PULL_SEL) - -/* mfp_spin_lock is used to ensure that MFP register configuration - * (most likely a read-modify-write operation) is atomic, and that - * mfp_table[] is consistent - */ -static DEFINE_SPINLOCK(mfp_spin_lock); - -static void __iomem *mfpr_mmio_base; - -struct mfp_pin { - unsigned long config; /* -1 for not configured */ - unsigned long mfpr_off; /* MFPRxx Register offset */ - unsigned long mfpr_run; /* Run-Mode Register Value */ - unsigned long mfpr_lpm; /* Low Power Mode Register Value */ -}; - -static struct mfp_pin mfp_table[MFP_PIN_MAX]; - -/* mapping of MFP_LPM_* definitions to MFPR_LPM_* register bits */ -static const unsigned long mfpr_lpm[] = { - MFPR_LPM_INPUT, - MFPR_LPM_DRIVE_LOW, - MFPR_LPM_DRIVE_HIGH, - MFPR_LPM_PULL_LOW, - MFPR_LPM_PULL_HIGH, - MFPR_LPM_FLOAT, - MFPR_LPM_INPUT, -}; - -/* mapping of MFP_PULL_* definitions to MFPR_PULL_* register bits */ -static const unsigned long mfpr_pull[] = { - MFPR_PULL_NONE, - MFPR_PULL_LOW, - MFPR_PULL_HIGH, - MFPR_PULL_BOTH, - MFPR_PULL_FLOAT, -}; - -/* mapping of MFP_LPM_EDGE_* definitions to MFPR_EDGE_* register bits */ -static const unsigned long mfpr_edge[] = { - MFPR_EDGE_NONE, - MFPR_EDGE_RISE, - MFPR_EDGE_FALL, - MFPR_EDGE_BOTH, -}; - -#define mfpr_readl(off) \ - __raw_readl(mfpr_mmio_base + (off)) - -#define mfpr_writel(off, val) \ - __raw_writel(val, mfpr_mmio_base + (off)) - -#define mfp_configured(p) ((p)->config != -1) - -/* - * perform a read-back of any valid MFPR register to make sure the - * previous writings are finished - */ -static unsigned long mfpr_off_readback; -#define mfpr_sync() (void)__raw_readl(mfpr_mmio_base + mfpr_off_readback) - -static inline void __mfp_config_run(struct mfp_pin *p) -{ - if (mfp_configured(p)) - mfpr_writel(p->mfpr_off, p->mfpr_run); -} - -static inline void __mfp_config_lpm(struct mfp_pin *p) -{ - if (mfp_configured(p)) { - unsigned long mfpr_clr = (p->mfpr_run & ~MFPR_EDGE_BOTH) | MFPR_EDGE_CLEAR; - if (mfpr_clr != p->mfpr_run) - mfpr_writel(p->mfpr_off, mfpr_clr); - if (p->mfpr_lpm != mfpr_clr) - mfpr_writel(p->mfpr_off, p->mfpr_lpm); - } -} - -void mfp_config(unsigned long *mfp_cfgs, int num) -{ - unsigned long flags; - int i; - - spin_lock_irqsave(&mfp_spin_lock, flags); - - for (i = 0; i < num; i++, mfp_cfgs++) { - unsigned long tmp, c = *mfp_cfgs; - struct mfp_pin *p; - int pin, af, drv, lpm, edge, pull; - - pin = MFP_PIN(c); - BUG_ON(pin >= MFP_PIN_MAX); - p = &mfp_table[pin]; - - af = MFP_AF(c); - drv = MFP_DS(c); - lpm = MFP_LPM_STATE(c); - edge = MFP_LPM_EDGE(c); - pull = MFP_PULL(c); - - /* run-mode pull settings will conflict with MFPR bits of - * low power mode state, calculate mfpr_run and mfpr_lpm - * individually if pull != MFP_PULL_NONE - */ - tmp = MFPR_AF_SEL(af) | MFPR_DRIVE(drv); - - if (likely(pull == MFP_PULL_NONE)) { - p->mfpr_run = tmp | mfpr_lpm[lpm] | mfpr_edge[edge]; - p->mfpr_lpm = p->mfpr_run; - } else { - p->mfpr_lpm = tmp | mfpr_lpm[lpm] | mfpr_edge[edge]; - p->mfpr_run = tmp | mfpr_pull[pull]; - } - - p->config = c; __mfp_config_run(p); - } - - mfpr_sync(); - spin_unlock_irqrestore(&mfp_spin_lock, flags); -} - -unsigned long mfp_read(int mfp) -{ - unsigned long val, flags; - - BUG_ON(mfp < 0 || mfp >= MFP_PIN_MAX); - - spin_lock_irqsave(&mfp_spin_lock, flags); - val = mfpr_readl(mfp_table[mfp].mfpr_off); - spin_unlock_irqrestore(&mfp_spin_lock, flags); - - return val; -} - -void mfp_write(int mfp, unsigned long val) -{ - unsigned long flags; - - BUG_ON(mfp < 0 || mfp >= MFP_PIN_MAX); - - spin_lock_irqsave(&mfp_spin_lock, flags); - mfpr_writel(mfp_table[mfp].mfpr_off, val); - mfpr_sync(); - spin_unlock_irqrestore(&mfp_spin_lock, flags); -} - -void __init mfp_init_base(void __iomem *mfpr_base) -{ - int i; - - /* initialize the table with default - unconfigured */ - for (i = 0; i < ARRAY_SIZE(mfp_table); i++) - mfp_table[i].config = -1; - - mfpr_mmio_base = mfpr_base; -} - -void __init mfp_init_addr(struct mfp_addr_map *map) -{ - struct mfp_addr_map *p; - unsigned long offset, flags; - int i; - - spin_lock_irqsave(&mfp_spin_lock, flags); - - /* mfp offset for readback */ - mfpr_off_readback = map[0].offset; - - for (p = map; p->start != MFP_PIN_INVALID; p++) { - offset = p->offset; - i = p->start; - - do { - mfp_table[i].mfpr_off = offset; - mfp_table[i].mfpr_run = 0; - mfp_table[i].mfpr_lpm = 0; - offset += 4; i++; - } while ((i <= p->end) && (p->end != -1)); - } - - spin_unlock_irqrestore(&mfp_spin_lock, flags); -} - -void mfp_config_lpm(void) -{ - struct mfp_pin *p = &mfp_table[0]; - int pin; - - for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++, p++) - __mfp_config_lpm(p); -} - -void mfp_config_run(void) -{ - struct mfp_pin *p = &mfp_table[0]; - int pin; - - for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++, p++) - __mfp_config_run(p); -} diff --git a/arch/arm/plat-pxa/ssp.c b/arch/arm/plat-pxa/ssp.c deleted file mode 100644 index 563440315acd..000000000000 --- a/arch/arm/plat-pxa/ssp.c +++ /dev/null @@ -1,231 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * linux/arch/arm/mach-pxa/ssp.c - * - * based on linux/arch/arm/mach-sa1100/ssp.c by Russell King - * - * Copyright (C) 2003 Russell King. - * Copyright (C) 2003 Wolfson Microelectronics PLC - * - * PXA2xx SSP driver. This provides the generic core for simple - * IO-based SSP applications and allows easy port setup for DMA access. - * - * Author: Liam Girdwood <liam.girdwood@wolfsonmicro.com> - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/mutex.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/platform_device.h> -#include <linux/spi/pxa2xx_spi.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include <asm/irq.h> - -static DEFINE_MUTEX(ssp_lock); -static LIST_HEAD(ssp_list); - -struct ssp_device *pxa_ssp_request(int port, const char *label) -{ - struct ssp_device *ssp = NULL; - - mutex_lock(&ssp_lock); - - list_for_each_entry(ssp, &ssp_list, node) { - if (ssp->port_id == port && ssp->use_count == 0) { - ssp->use_count++; - ssp->label = label; - break; - } - } - - mutex_unlock(&ssp_lock); - - if (&ssp->node == &ssp_list) - return NULL; - - return ssp; -} -EXPORT_SYMBOL(pxa_ssp_request); - -struct ssp_device *pxa_ssp_request_of(const struct device_node *of_node, - const char *label) -{ - struct ssp_device *ssp = NULL; - - mutex_lock(&ssp_lock); - - list_for_each_entry(ssp, &ssp_list, node) { - if (ssp->of_node == of_node && ssp->use_count == 0) { - ssp->use_count++; - ssp->label = label; - break; - } - } - - mutex_unlock(&ssp_lock); - - if (&ssp->node == &ssp_list) - return NULL; - - return ssp; -} -EXPORT_SYMBOL(pxa_ssp_request_of); - -void pxa_ssp_free(struct ssp_device *ssp) -{ - mutex_lock(&ssp_lock); - if (ssp->use_count) { - ssp->use_count--; - ssp->label = NULL; - } else - dev_err(ssp->dev, "device already free\n"); - mutex_unlock(&ssp_lock); -} -EXPORT_SYMBOL(pxa_ssp_free); - -#ifdef CONFIG_OF -static const struct of_device_id pxa_ssp_of_ids[] = { - { .compatible = "mrvl,pxa25x-ssp", .data = (void *) PXA25x_SSP }, - { .compatible = "mvrl,pxa25x-nssp", .data = (void *) PXA25x_NSSP }, - { .compatible = "mrvl,pxa27x-ssp", .data = (void *) PXA27x_SSP }, - { .compatible = "mrvl,pxa3xx-ssp", .data = (void *) PXA3xx_SSP }, - { .compatible = "mvrl,pxa168-ssp", .data = (void *) PXA168_SSP }, - { .compatible = "mrvl,pxa910-ssp", .data = (void *) PXA910_SSP }, - { .compatible = "mrvl,ce4100-ssp", .data = (void *) CE4100_SSP }, - { }, -}; -MODULE_DEVICE_TABLE(of, pxa_ssp_of_ids); -#endif - -static int pxa_ssp_probe(struct platform_device *pdev) -{ - struct resource *res; - struct ssp_device *ssp; - struct device *dev = &pdev->dev; - - ssp = devm_kzalloc(dev, sizeof(struct ssp_device), GFP_KERNEL); - if (ssp == NULL) - return -ENOMEM; - - ssp->dev = dev; - - ssp->clk = devm_clk_get(dev, NULL); - if (IS_ERR(ssp->clk)) - return PTR_ERR(ssp->clk); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - dev_err(dev, "no memory resource defined\n"); - return -ENODEV; - } - - res = devm_request_mem_region(dev, res->start, resource_size(res), - pdev->name); - if (res == NULL) { - dev_err(dev, "failed to request memory resource\n"); - return -EBUSY; - } - - ssp->phys_base = res->start; - - ssp->mmio_base = devm_ioremap(dev, res->start, resource_size(res)); - if (ssp->mmio_base == NULL) { - dev_err(dev, "failed to ioremap() registers\n"); - return -ENODEV; - } - - ssp->irq = platform_get_irq(pdev, 0); - if (ssp->irq < 0) { - dev_err(dev, "no IRQ resource defined\n"); - return -ENODEV; - } - - if (dev->of_node) { - const struct of_device_id *id = - of_match_device(of_match_ptr(pxa_ssp_of_ids), dev); - ssp->type = (int) id->data; - } else { - const struct platform_device_id *id = - platform_get_device_id(pdev); - ssp->type = (int) id->driver_data; - - /* PXA2xx/3xx SSP ports starts from 1 and the internal pdev->id - * starts from 0, do a translation here - */ - ssp->port_id = pdev->id + 1; - } - - ssp->use_count = 0; - ssp->of_node = dev->of_node; - - mutex_lock(&ssp_lock); - list_add(&ssp->node, &ssp_list); - mutex_unlock(&ssp_lock); - - platform_set_drvdata(pdev, ssp); - - return 0; -} - -static int pxa_ssp_remove(struct platform_device *pdev) -{ - struct ssp_device *ssp; - - ssp = platform_get_drvdata(pdev); - if (ssp == NULL) - return -ENODEV; - - mutex_lock(&ssp_lock); - list_del(&ssp->node); - mutex_unlock(&ssp_lock); - - return 0; -} - -static const struct platform_device_id ssp_id_table[] = { - { "pxa25x-ssp", PXA25x_SSP }, - { "pxa25x-nssp", PXA25x_NSSP }, - { "pxa27x-ssp", PXA27x_SSP }, - { "pxa3xx-ssp", PXA3xx_SSP }, - { "pxa168-ssp", PXA168_SSP }, - { "pxa910-ssp", PXA910_SSP }, - { }, -}; - -static struct platform_driver pxa_ssp_driver = { - .probe = pxa_ssp_probe, - .remove = pxa_ssp_remove, - .driver = { - .name = "pxa2xx-ssp", - .of_match_table = of_match_ptr(pxa_ssp_of_ids), - }, - .id_table = ssp_id_table, -}; - -static int __init pxa_ssp_init(void) -{ - return platform_driver_register(&pxa_ssp_driver); -} - -static void __exit pxa_ssp_exit(void) -{ - platform_driver_unregister(&pxa_ssp_driver); -} - -arch_initcall(pxa_ssp_init); -module_exit(pxa_ssp_exit); - -MODULE_DESCRIPTION("PXA SSP driver"); -MODULE_AUTHOR("Liam Girdwood"); -MODULE_LICENSE("GPL"); |