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authorHaojian Zhuang <haojian.zhuang@marvell.com>2010-03-16 17:12:37 +0800
committerEric Miao <eric.y.miao@gmail.com>2010-05-11 17:24:58 +0200
commit54c39b420f017c546fb130a05c14bdb0a7910f98 (patch)
tree44d77ca073fc7c7efc3f32f1d419a4ee16b1fbd8 /arch/arm/mach-pxa
parentbe1194cca55961b4dd98ea17fb24f0ffc6fa2213 (diff)
[ARM] pxa: move ssp into common plat-pxa
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/Kconfig5
-rw-r--r--arch/arm/mach-pxa/Makefile1
-rw-r--r--arch/arm/mach-pxa/include/mach/ssp.h196
-rw-r--r--arch/arm/mach-pxa/poodle.c2
-rw-r--r--arch/arm/mach-pxa/ssp.c223
5 files changed, 1 insertions, 426 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 8f7eb12776a9..6dd450a7dea6 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -648,11 +648,6 @@ config PXA_SHARP_Cxx00
help
Enable common support for Sharp Cxx00 models
-config PXA_SSP
- tristate
- help
- Enable support for PXA2xx SSP ports
-
config TOSA_BT
tristate "Control the state of built-in bluetooth chip on Sharp SL-6000"
depends on MACH_TOSA
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index a83aff386fba..cf57fb2f73d8 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -14,7 +14,6 @@ obj-$(CONFIG_PXA3xx) += cpufreq-pxa3xx.o
endif
# Generic drivers that other drivers may depend upon
-obj-$(CONFIG_PXA_SSP) += ssp.o
# SoC-specific code
obj-$(CONFIG_PXA25x) += mfp-pxa2xx.o pxa2xx.o pxa25x.o
diff --git a/arch/arm/mach-pxa/include/mach/ssp.h b/arch/arm/mach-pxa/include/mach/ssp.h
deleted file mode 100644
index 4c4ce62390d0..000000000000
--- a/arch/arm/mach-pxa/include/mach/ssp.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * ssp.h
- *
- * Copyright (C) 2003 Russell King, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This driver supports the following PXA CPU/SSP ports:-
- *
- * PXA250 SSP
- * PXA255 SSP, NSSP
- * PXA26x SSP, NSSP, ASSP
- * PXA27x SSP1, SSP2, SSP3
- * PXA3xx SSP1, SSP2, SSP3, SSP4
- */
-
-#ifndef __ASM_ARCH_SSP_H
-#define __ASM_ARCH_SSP_H
-
-#include <linux/list.h>
-#include <linux/io.h>
-
-/*
- * SSP Serial Port Registers
- * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different.
- * PXA255, PXA26x and PXA27x have extra ports, registers and bits.
- */
-
-#define SSCR0 (0x00) /* SSP Control Register 0 */
-#define SSCR1 (0x04) /* SSP Control Register 1 */
-#define SSSR (0x08) /* SSP Status Register */
-#define SSITR (0x0C) /* SSP Interrupt Test Register */
-#define SSDR (0x10) /* SSP Data Write/Data Read Register */
-
-#define SSTO (0x28) /* SSP Time Out Register */
-#define SSPSP (0x2C) /* SSP Programmable Serial Protocol */
-#define SSTSA (0x30) /* SSP Tx Timeslot Active */
-#define SSRSA (0x34) /* SSP Rx Timeslot Active */
-#define SSTSS (0x38) /* SSP Timeslot Status */
-#define SSACD (0x3C) /* SSP Audio Clock Divider */
-
-#if defined(CONFIG_PXA3xx)
-#define SSACDD (0x40) /* SSP Audio Clock Dither Divider */
-#endif
-
-/* Common PXA2xx bits first */
-#define SSCR0_DSS (0x0000000f) /* Data Size Select (mask) */
-#define SSCR0_DataSize(x) ((x) - 1) /* Data Size Select [4..16] */
-#define SSCR0_FRF (0x00000030) /* FRame Format (mask) */
-#define SSCR0_Motorola (0x0 << 4) /* Motorola's Serial Peripheral Interface (SPI) */
-#define SSCR0_TI (0x1 << 4) /* Texas Instruments' Synchronous Serial Protocol (SSP) */
-#define SSCR0_National (0x2 << 4) /* National Microwire */
-#define SSCR0_ECS (1 << 6) /* External clock select */
-#define SSCR0_SSE (1 << 7) /* Synchronous Serial Port Enable */
-#define SSCR0_SCR(x) ((x) << 8) /* Serial Clock Rate (mask) */
-
-#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
-#define SSCR0_EDSS (1 << 20) /* Extended data size select */
-#define SSCR0_NCS (1 << 21) /* Network clock select */
-#define SSCR0_RIM (1 << 22) /* Receive FIFO overrrun interrupt mask */
-#define SSCR0_TUM (1 << 23) /* Transmit FIFO underrun interrupt mask */
-#define SSCR0_FRDC (0x07000000) /* Frame rate divider control (mask) */
-#define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24) /* Time slots per frame [1..8] */
-#define SSCR0_ACS (1 << 30) /* Audio clock select */
-#define SSCR0_MOD (1 << 31) /* Mode (normal or network) */
-#endif
-
-#if defined(CONFIG_PXA3xx)
-#define SSCR0_FPCKE (1 << 29) /* FIFO packing enable */
-#endif
-
-#define SSCR1_RIE (1 << 0) /* Receive FIFO Interrupt Enable */
-#define SSCR1_TIE (1 << 1) /* Transmit FIFO Interrupt Enable */
-#define SSCR1_LBM (1 << 2) /* Loop-Back Mode */
-#define SSCR1_SPO (1 << 3) /* Motorola SPI SSPSCLK polarity setting */
-#define SSCR1_SPH (1 << 4) /* Motorola SPI SSPSCLK phase setting */
-#define SSCR1_MWDS (1 << 5) /* Microwire Transmit Data Size */
-#define SSCR1_TFT (0x000003c0) /* Transmit FIFO Threshold (mask) */
-#define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */
-#define SSCR1_RFT (0x00003c00) /* Receive FIFO Threshold (mask) */
-#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */
-
-#define SSSR_TNF (1 << 2) /* Transmit FIFO Not Full */
-#define SSSR_RNE (1 << 3) /* Receive FIFO Not Empty */
-#define SSSR_BSY (1 << 4) /* SSP Busy */
-#define SSSR_TFS (1 << 5) /* Transmit FIFO Service Request */
-#define SSSR_RFS (1 << 6) /* Receive FIFO Service Request */
-#define SSSR_ROR (1 << 7) /* Receive FIFO Overrun */
-
-#define SSCR0_TIM (1 << 23) /* Transmit FIFO Under Run Interrupt Mask */
-#define SSCR0_RIM (1 << 22) /* Receive FIFO Over Run interrupt Mask */
-#define SSCR0_NCS (1 << 21) /* Network Clock Select */
-#define SSCR0_EDSS (1 << 20) /* Extended Data Size Select */
-
-/* extra bits in PXA255, PXA26x and PXA27x SSP ports */
-#define SSCR0_TISSP (1 << 4) /* TI Sync Serial Protocol */
-#define SSCR0_PSP (3 << 4) /* PSP - Programmable Serial Protocol */
-#define SSCR1_TTELP (1 << 31) /* TXD Tristate Enable Last Phase */
-#define SSCR1_TTE (1 << 30) /* TXD Tristate Enable */
-#define SSCR1_EBCEI (1 << 29) /* Enable Bit Count Error interrupt */
-#define SSCR1_SCFR (1 << 28) /* Slave Clock free Running */
-#define SSCR1_ECRA (1 << 27) /* Enable Clock Request A */
-#define SSCR1_ECRB (1 << 26) /* Enable Clock request B */
-#define SSCR1_SCLKDIR (1 << 25) /* Serial Bit Rate Clock Direction */
-#define SSCR1_SFRMDIR (1 << 24) /* Frame Direction */
-#define SSCR1_RWOT (1 << 23) /* Receive Without Transmit */
-#define SSCR1_TRAIL (1 << 22) /* Trailing Byte */
-#define SSCR1_TSRE (1 << 21) /* Transmit Service Request Enable */
-#define SSCR1_RSRE (1 << 20) /* Receive Service Request Enable */
-#define SSCR1_TINTE (1 << 19) /* Receiver Time-out Interrupt enable */
-#define SSCR1_PINTE (1 << 18) /* Peripheral Trailing Byte Interupt Enable */
-#define SSCR1_IFS (1 << 16) /* Invert Frame Signal */
-#define SSCR1_STRF (1 << 15) /* Select FIFO or EFWR */
-#define SSCR1_EFWR (1 << 14) /* Enable FIFO Write/Read */
-
-#define SSSR_BCE (1 << 23) /* Bit Count Error */
-#define SSSR_CSS (1 << 22) /* Clock Synchronisation Status */
-#define SSSR_TUR (1 << 21) /* Transmit FIFO Under Run */
-#define SSSR_EOC (1 << 20) /* End Of Chain */
-#define SSSR_TINT (1 << 19) /* Receiver Time-out Interrupt */
-#define SSSR_PINT (1 << 18) /* Peripheral Trailing Byte Interrupt */
-
-#if defined(CONFIG_PXA3xx)
-#define SSPSP_EDMYSTOP(x) ((x) << 28) /* Extended Dummy Stop */
-#define SSPSP_EDMYSTRT(x) ((x) << 26) /* Extended Dummy Start */
-#endif
-
-#define SSPSP_FSRT (1 << 25) /* Frame Sync Relative Timing */
-#define SSPSP_DMYSTOP(x) ((x) << 23) /* Dummy Stop */
-#define SSPSP_SFRMWDTH(x) ((x) << 16) /* Serial Frame Width */
-#define SSPSP_SFRMDLY(x) ((x) << 9) /* Serial Frame Delay */
-#define SSPSP_DMYSTRT(x) ((x) << 7) /* Dummy Start */
-#define SSPSP_STRTDLY(x) ((x) << 4) /* Start Delay */
-#define SSPSP_ETDS (1 << 3) /* End of Transfer data State */
-#define SSPSP_SFRMP (1 << 2) /* Serial Frame Polarity */
-#define SSPSP_SCMODE(x) ((x) << 0) /* Serial Bit Rate Clock Mode */
-
-#define SSACD_SCDB (1 << 3) /* SSPSYSCLK Divider Bypass */
-#define SSACD_ACPS(x) ((x) << 4) /* Audio clock PLL select */
-#define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */
-#if defined(CONFIG_PXA3xx)
-#define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */
-#endif
-
-enum pxa_ssp_type {
- SSP_UNDEFINED = 0,
- PXA25x_SSP, /* pxa 210, 250, 255, 26x */
- PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */
- PXA27x_SSP,
-};
-
-struct ssp_device {
- struct platform_device *pdev;
- struct list_head node;
-
- struct clk *clk;
- void __iomem *mmio_base;
- unsigned long phys_base;
-
- const char *label;
- int port_id;
- int type;
- int use_count;
- int irq;
- int drcmr_rx;
- int drcmr_tx;
-};
-
-/**
- * ssp_write_reg - Write to a SSP register
- *
- * @dev: SSP device to access
- * @reg: Register to write to
- * @val: Value to be written.
- */
-static inline void ssp_write_reg(struct ssp_device *dev, u32 reg, u32 val)
-{
- __raw_writel(val, dev->mmio_base + reg);
-}
-
-/**
- * ssp_read_reg - Read from a SSP register
- *
- * @dev: SSP device to access
- * @reg: Register to read from
- */
-static inline u32 ssp_read_reg(struct ssp_device *dev, u32 reg)
-{
- return __raw_readl(dev->mmio_base + reg);
-}
-
-struct ssp_device *ssp_request(int port, const char *label);
-void ssp_free(struct ssp_device *);
-#endif /* __ASM_ARCH_SSP_H */
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 48b10c783a28..dcb178807046 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -40,12 +40,12 @@
#include <mach/pxa25x.h>
#include <mach/mmc.h>
#include <mach/udc.h>
-#include <plat/i2c.h>
#include <mach/irda.h>
#include <mach/poodle.h>
#include <mach/pxafb.h>
#include <mach/sharpsl.h>
#include <mach/pxa2xx_spi.h>
+#include <plat/i2c.h>
#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c
deleted file mode 100644
index a9b2d3eb8f32..000000000000
--- a/arch/arm/mach-pxa/ssp.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * 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
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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/io.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <mach/ssp.h>
-
-static DEFINE_MUTEX(ssp_lock);
-static LIST_HEAD(ssp_list);
-
-struct ssp_device *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(ssp_request);
-
-void ssp_free(struct ssp_device *ssp)
-{
- mutex_lock(&ssp_lock);
- if (ssp->use_count) {
- ssp->use_count--;
- ssp->label = NULL;
- } else
- dev_err(&ssp->pdev->dev, "device already free\n");
- mutex_unlock(&ssp_lock);
-}
-EXPORT_SYMBOL(ssp_free);
-
-static int __devinit ssp_probe(struct platform_device *pdev)
-{
- const struct platform_device_id *id = platform_get_device_id(pdev);
- struct resource *res;
- struct ssp_device *ssp;
- int ret = 0;
-
- ssp = kzalloc(sizeof(struct ssp_device), GFP_KERNEL);
- if (ssp == NULL) {
- dev_err(&pdev->dev, "failed to allocate memory");
- return -ENOMEM;
- }
- ssp->pdev = pdev;
-
- ssp->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(ssp->clk)) {
- ret = PTR_ERR(ssp->clk);
- goto err_free;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no memory resource defined\n");
- ret = -ENODEV;
- goto err_free_clk;
- }
-
- res = request_mem_region(res->start, res->end - res->start + 1,
- pdev->name);
- if (res == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto err_free_clk;
- }
-
- ssp->phys_base = res->start;
-
- ssp->mmio_base = ioremap(res->start, res->end - res->start + 1);
- if (ssp->mmio_base == NULL) {
- dev_err(&pdev->dev, "failed to ioremap() registers\n");
- ret = -ENODEV;
- goto err_free_mem;
- }
-
- ssp->irq = platform_get_irq(pdev, 0);
- if (ssp->irq < 0) {
- dev_err(&pdev->dev, "no IRQ resource defined\n");
- ret = -ENODEV;
- goto err_free_io;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no SSP RX DRCMR defined\n");
- ret = -ENODEV;
- goto err_free_io;
- }
- ssp->drcmr_rx = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (res == NULL) {
- dev_err(&pdev->dev, "no SSP TX DRCMR defined\n");
- ret = -ENODEV;
- goto err_free_io;
- }
- ssp->drcmr_tx = res->start;
-
- /* 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->type = (int)id->driver_data;
-
- mutex_lock(&ssp_lock);
- list_add(&ssp->node, &ssp_list);
- mutex_unlock(&ssp_lock);
-
- platform_set_drvdata(pdev, ssp);
- return 0;
-
-err_free_io:
- iounmap(ssp->mmio_base);
-err_free_mem:
- release_mem_region(res->start, res->end - res->start + 1);
-err_free_clk:
- clk_put(ssp->clk);
-err_free:
- kfree(ssp);
- return ret;
-}
-
-static int __devexit ssp_remove(struct platform_device *pdev)
-{
- struct resource *res;
- struct ssp_device *ssp;
-
- ssp = platform_get_drvdata(pdev);
- if (ssp == NULL)
- return -ENODEV;
-
- iounmap(ssp->mmio_base);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start + 1);
-
- clk_put(ssp->clk);
-
- mutex_lock(&ssp_lock);
- list_del(&ssp->node);
- mutex_unlock(&ssp_lock);
-
- kfree(ssp);
- return 0;
-}
-
-static const struct platform_device_id ssp_id_table[] = {
- { "pxa25x-ssp", PXA25x_SSP },
- { "pxa25x-nssp", PXA25x_NSSP },
- { "pxa27x-ssp", PXA27x_SSP },
- { },
-};
-
-static struct platform_driver ssp_driver = {
- .probe = ssp_probe,
- .remove = __devexit_p(ssp_remove),
- .driver = {
- .owner = THIS_MODULE,
- .name = "pxa2xx-ssp",
- },
- .id_table = ssp_id_table,
-};
-
-static int __init pxa_ssp_init(void)
-{
- return platform_driver_register(&ssp_driver);
-}
-
-static void __exit pxa_ssp_exit(void)
-{
- platform_driver_unregister(&ssp_driver);
-}
-
-arch_initcall(pxa_ssp_init);
-module_exit(pxa_ssp_exit);
-
-MODULE_DESCRIPTION("PXA SSP driver");
-MODULE_AUTHOR("Liam Girdwood");
-MODULE_LICENSE("GPL");