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
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
+++ /dev/null
-/*
- * 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 */
#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>
+++ /dev/null
-/*
- * 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");
if PLAT_PXA
+config PXA_SSP
+ tristate
+ help
+ Enable support for PXA2xx SSP ports
+
endif
obj-$(CONFIG_ARCH_MMP) += mfp.o
obj-$(CONFIG_HAVE_PWM) += pwm.o
+obj-$(CONFIG_PXA_SSP) += ssp.o
--- /dev/null
+/*
+ * 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 */
--- /dev/null
+/*
+ * 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 <plat/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");
#include <asm/delay.h>
#include <mach/dma.h>
-#include <mach/ssp.h>
+#include <plat/ssp.h>
#include <mach/pxa2xx_spi.h>
MODULE_AUTHOR("Stephen Street");
#include <mach/hardware.h>
#include <mach/dma.h>
#include <mach/audio.h>
-#include <mach/ssp.h>
+#include <plat/ssp.h>
#include "pxa2xx-pcm.h"
#include "pxa-ssp.h"
projects / cascardo / linux.git / commitdiff