diff options
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/clock.c | 128 | ||||
| -rw-r--r-- | arch/arm/plat-omap/common.c | 59 | ||||
| -rw-r--r-- | arch/arm/plat-omap/devices.c | 48 | ||||
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 766 | ||||
| -rw-r--r-- | arch/arm/plat-omap/dmtimer.c | 212 | ||||
| -rw-r--r-- | arch/arm/plat-omap/mcbsp.c | 767 | ||||
| -rw-r--r-- | arch/arm/plat-omap/sram-fn.S | 57 | ||||
| -rw-r--r-- | arch/arm/plat-omap/sram.c | 211 | ||||
| -rw-r--r-- | arch/arm/plat-omap/usb.c | 131 |
10 files changed, 1405 insertions, 976 deletions
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile index bc639a30d6d..2c4051cc79a 100644 --- a/arch/arm/plat-omap/Makefile +++ b/arch/arm/plat-omap/Makefile @@ -3,7 +3,7 @@ # # Common support -obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o \ +obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \ usb.o fb.o obj-m := obj-n := diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 2db5580048d..c2e741de020 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/plat-omap/clock.c * - * Copyright (C) 2004 - 2005 Nokia corporation + * Copyright (C) 2004 - 2008 Nokia corporation * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com> * * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com> @@ -22,6 +22,7 @@ #include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/cpufreq.h> +#include <linux/debugfs.h> #include <asm/io.h> @@ -33,41 +34,6 @@ static DEFINE_SPINLOCK(clockfw_lock); static struct clk_functions *arch_clock; -#ifdef CONFIG_PM_DEBUG - -static void print_parents(struct clk *clk) -{ - struct clk *p; - int printed = 0; - - list_for_each_entry(p, &clocks, node) { - if (p->parent == clk && p->usecount) { - if (!clk->usecount && !printed) { - printk("MISMATCH: %s\n", clk->name); - printed = 1; - } - printk("\t%-15s\n", p->name); - } - } -} - -void clk_print_usecounts(void) -{ - unsigned long flags; - struct clk *p; - - spin_lock_irqsave(&clockfw_lock, flags); - list_for_each_entry(p, &clocks, node) { - if (p->usecount) - printk("%-15s: %d\n", p->name, p->usecount); - print_parents(p); - - } - spin_unlock_irqrestore(&clockfw_lock, flags); -} - -#endif - /*------------------------------------------------------------------------- * Standard clock functions defined in include/linux/clk.h *-------------------------------------------------------------------------*/ @@ -446,3 +412,93 @@ int __init clk_init(struct clk_functions * custom_clocks) return 0; } +#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) +/* + * debugfs support to trace clock tree hierarchy and attributes + */ +static struct dentry *clk_debugfs_root; + +static int clk_debugfs_register_one(struct clk *c) +{ + int err; + struct dentry *d, *child; + struct clk *pa = c->parent; + char s[255]; + char *p = s; + + p += sprintf(p, "%s", c->name); + if (c->id != 0) + sprintf(p, ":%d", c->id); + d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root); + if (IS_ERR(d)) + return PTR_ERR(d); + c->dent = d; + + d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount); + if (IS_ERR(d)) { + err = PTR_ERR(d); + goto err_out; + } + d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); + if (IS_ERR(d)) { + err = PTR_ERR(d); + goto err_out; + } + d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); + if (IS_ERR(d)) { + err = PTR_ERR(d); + goto err_out; + } + return 0; + +err_out: + d = c->dent; + list_for_each_entry(child, &d->d_subdirs, d_u.d_child) + debugfs_remove(child); + debugfs_remove(c->dent); + return err; +} + +static int clk_debugfs_register(struct clk *c) +{ + int err; + struct clk *pa = c->parent; + + if (pa && !pa->dent) { + err = clk_debugfs_register(pa); + if (err) + return err; + } + + if (!c->dent) { + err = clk_debugfs_register_one(c); + if (err) + return err; + } + return 0; +} + +static int __init clk_debugfs_init(void) +{ + struct clk *c; + struct dentry *d; + int err; + + d = debugfs_create_dir("clock", NULL); + if (IS_ERR(d)) + return PTR_ERR(d); + clk_debugfs_root = d; + + list_for_each_entry(c, &clocks, node) { + err = clk_debugfs_register(c); + if (err) + goto err_out; + } + return 0; +err_out: + debugfs_remove(clk_debugfs_root); /* REVISIT: Cleanup correctly */ + return err; +} +late_initcall(clk_debugfs_init); + +#endif /* defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) */ diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index bd1cef2c3c1..8d04929a3c7 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -26,6 +26,7 @@ #include <asm/io.h> #include <asm/setup.h> +#include <asm/arch/common.h> #include <asm/arch/board.h> #include <asm/arch/control.h> #include <asm/arch/mux.h> @@ -241,30 +242,70 @@ arch_initcall(omap_init_clocksource_32k); /* Global address base setup code */ +#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) + +static struct omap_globals *omap2_globals; + +static void __init __omap2_set_globals(void) +{ + omap2_set_globals_memory(omap2_globals); + omap2_set_globals_control(omap2_globals); + omap2_set_globals_prcm(omap2_globals); +} + +#endif + #if defined(CONFIG_ARCH_OMAP2420) + +static struct omap_globals omap242x_globals = { + .tap = (__force void __iomem *)OMAP2_IO_ADDRESS(0x48014000), + .sdrc = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_SDRC_BASE), + .sms = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_SMS_BASE), + .ctrl = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_CTRL_BASE), + .prm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_PRM_BASE), + .cm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_CM_BASE), +}; + void __init omap2_set_globals_242x(void) { - omap2_sdrc_base = OMAP2420_SDRC_BASE; - omap2_sms_base = OMAP2420_SMS_BASE; - omap_ctrl_base_set(OMAP2420_CTRL_BASE); + omap2_globals = &omap242x_globals; + __omap2_set_globals(); } #endif #if defined(CONFIG_ARCH_OMAP2430) + +static struct omap_globals omap243x_globals = { + .tap = (__force void __iomem *)OMAP2_IO_ADDRESS(0x4900a000), + .sdrc = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP243X_SDRC_BASE), + .sms = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP243X_SMS_BASE), + .ctrl = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP243X_CTRL_BASE), + .prm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2430_PRM_BASE), + .cm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP2430_CM_BASE), +}; + void __init omap2_set_globals_243x(void) { - omap2_sdrc_base = OMAP243X_SDRC_BASE; - omap2_sms_base = OMAP243X_SMS_BASE; - omap_ctrl_base_set(OMAP243X_CTRL_BASE); + omap2_globals = &omap243x_globals; + __omap2_set_globals(); } #endif #if defined(CONFIG_ARCH_OMAP3430) + +static struct omap_globals omap343x_globals = { + .tap = (__force void __iomem *)OMAP2_IO_ADDRESS(0x4830A000), + .sdrc = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP343X_SDRC_BASE), + .sms = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP343X_SMS_BASE), + .ctrl = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP343X_CTRL_BASE), + .prm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP3430_PRM_BASE), + .cm = (__force void __iomem *)OMAP2_IO_ADDRESS(OMAP3430_CM_BASE), +}; + void __init omap2_set_globals_343x(void) { - omap2_sdrc_base = OMAP343X_SDRC_BASE; - omap2_sms_base = OMAP343X_SMS_BASE; - omap_ctrl_base_set(OMAP343X_CTRL_BASE); + omap2_globals = &omap343x_globals; + __omap2_set_globals(); } #endif diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index 4a53f9ba6c4..81002b722da 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -24,6 +24,7 @@ #include <asm/arch/mux.h> #include <asm/arch/gpio.h> #include <asm/arch/menelaus.h> +#include <asm/arch/mcbsp.h> #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE) @@ -145,6 +146,53 @@ static inline void omap_init_kp(void) {} #endif /*-------------------------------------------------------------------------*/ +#if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE) + +static struct platform_device **omap_mcbsp_devices; + +void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, + int size) +{ + int i; + + if (size > OMAP_MAX_MCBSP_COUNT) { + printk(KERN_WARNING "Registered too many McBSPs platform_data." + " Using maximum (%d) available.\n", + OMAP_MAX_MCBSP_COUNT); + size = OMAP_MAX_MCBSP_COUNT; + } + + omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *), + GFP_KERNEL); + if (!omap_mcbsp_devices) { + printk(KERN_ERR "Could not register McBSP devices\n"); + return; + } + + for (i = 0; i < size; i++) { + struct platform_device *new_mcbsp; + int ret; + + new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1); + if (!new_mcbsp) + continue; + new_mcbsp->dev.platform_data = &config[i]; + ret = platform_device_add(new_mcbsp); + if (ret) { + platform_device_put(new_mcbsp); + continue; + } + omap_mcbsp_devices[i] = new_mcbsp; + } +} + +#else +void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, + int size) +{ } +#endif + +/*-------------------------------------------------------------------------*/ #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index c00eda588cd..fac8e994f58 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -1,7 +1,7 @@ /* * linux/arch/arm/plat-omap/dma.c * - * Copyright (C) 2003 Nokia Corporation + * Copyright (C) 2003 - 2008 Nokia Corporation * Author: Juha Yrjölä <juha.yrjola@nokia.com> * DMA channel linking for 1610 by Samuel Ortiz <samuel.ortiz@nokia.com> * Graphics DMA and LCD DMA graphics tranformations @@ -25,11 +25,11 @@ #include <linux/errno.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/io.h> #include <asm/system.h> #include <asm/hardware.h> #include <asm/dma.h> -#include <asm/io.h> #include <asm/arch/tc.h> @@ -43,13 +43,13 @@ enum { DMA_CH_ALLOC_DONE, DMA_CH_PARAMS_SET_DONE, DMA_CH_STARTED, enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED }; #endif -#define OMAP_DMA_ACTIVE 0x01 -#define OMAP_DMA_CCR_EN (1 << 7) +#define OMAP_DMA_ACTIVE 0x01 +#define OMAP_DMA_CCR_EN (1 << 7) #define OMAP2_DMA_CSR_CLEAR_MASK 0xffe -#define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec) +#define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec) -static int enable_1510_mode = 0; +static int enable_1510_mode; struct omap_dma_lch { int next_lch; @@ -57,7 +57,7 @@ struct omap_dma_lch { u16 saved_csr; u16 enabled_irqs; const char *dev_name; - void (* callback)(int lch, u16 ch_status, void *data); + void (*callback)(int lch, u16 ch_status, void *data); void *data; #ifndef CONFIG_ARCH_OMAP1 @@ -72,7 +72,6 @@ struct omap_dma_lch { long flags; }; -#ifndef CONFIG_ARCH_OMAP1 struct dma_link_info { int *linked_dmach_q; int no_of_lchs_linked; @@ -86,7 +85,9 @@ struct dma_link_info { }; -static struct dma_link_info dma_linked_lch[OMAP_LOGICAL_DMA_CH_COUNT]; +static struct dma_link_info *dma_linked_lch; + +#ifndef CONFIG_ARCH_OMAP1 /* Chain handling macros */ #define OMAP_DMA_CHAIN_QINIT(chain_id) \ @@ -119,12 +120,15 @@ static struct dma_link_info dma_linked_lch[OMAP_LOGICAL_DMA_CH_COUNT]; dma_linked_lch[chain_id].q_count++; \ } while (0) #endif + +static int dma_lch_count; static int dma_chan_count; static spinlock_t dma_chan_lock; -static struct omap_dma_lch dma_chan[OMAP_LOGICAL_DMA_CH_COUNT]; +static struct omap_dma_lch *dma_chan; +static void __iomem *omap_dma_base; -static const u8 omap1_dma_irq[OMAP_LOGICAL_DMA_CH_COUNT] = { +static const u8 omap1_dma_irq[OMAP1_LOGICAL_DMA_CH_COUNT] = { INT_DMA_CH0_6, INT_DMA_CH1_7, INT_DMA_CH2_8, INT_DMA_CH3, INT_DMA_CH4, INT_DMA_CH5, INT_1610_DMA_CH6, INT_1610_DMA_CH7, INT_1610_DMA_CH8, INT_1610_DMA_CH9, INT_1610_DMA_CH10, @@ -139,6 +143,24 @@ static inline void omap_enable_channel_irq(int lch); #define REVISIT_24XX() printk(KERN_ERR "FIXME: no %s on 24xx\n", \ __func__); +#define dma_read(reg) \ +({ \ + u32 __val; \ + if (cpu_class_is_omap1()) \ + __val = __raw_readw(omap_dma_base + OMAP1_DMA_##reg); \ + else \ + __val = __raw_readl(omap_dma_base + OMAP_DMA4_##reg); \ + __val; \ +}) + +#define dma_write(val, reg) \ +({ \ + if (cpu_class_is_omap1()) \ + __raw_writew((u16)(val), omap_dma_base + OMAP1_DMA_##reg); \ + else \ + __raw_writel((val), omap_dma_base + OMAP_DMA4_##reg); \ +}) + #ifdef CONFIG_ARCH_OMAP15XX /* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ int omap_dma_in_1510_mode(void) @@ -173,13 +195,14 @@ static inline void set_gdma_dev(int req, int dev) #define set_gdma_dev(req, dev) do {} while (0) #endif +/* Omap1 only */ static void clear_lch_regs(int lch) { int i; - u32 lch_base = OMAP_DMA_BASE + lch * 0x40; + void __iomem *lch_base = omap_dma_base + OMAP1_DMA_CH_BASE(lch); for (i = 0; i < 0x2c; i += 2) - omap_writew(0, lch_base + i); + __raw_writew(0, lch_base + i); } void omap_set_dma_priority(int lch, int dst_port, int priority) @@ -212,33 +235,49 @@ void omap_set_dma_priority(int lch, int dst_port, int priority) } if (cpu_class_is_omap2()) { + u32 ccr; + + ccr = dma_read(CCR(lch)); if (priority) - OMAP_DMA_CCR_REG(lch) |= (1 << 6); + ccr |= (1 << 6); else - OMAP_DMA_CCR_REG(lch) &= ~(1 << 6); + ccr &= ~(1 << 6); + dma_write(ccr, CCR(lch)); } } +EXPORT_SYMBOL(omap_set_dma_priority); void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, int frame_count, int sync_mode, int dma_trigger, int src_or_dst_synch) { - OMAP_DMA_CSDP_REG(lch) &= ~0x03; - OMAP_DMA_CSDP_REG(lch) |= data_type; + u32 l; + + l = dma_read(CSDP(lch)); + l &= ~0x03; + l |= data_type; + dma_write(l, CSDP(lch)); if (cpu_class_is_omap1()) { - OMAP_DMA_CCR_REG(lch) &= ~(1 << 5); + u16 ccr; + + ccr = dma_read(CCR(lch)); + ccr &= ~(1 << 5); if (sync_mode == OMAP_DMA_SYNC_FRAME) - OMAP_DMA_CCR_REG(lch) |= 1 << 5; + ccr |= 1 << 5; + dma_write(ccr, CCR(lch)); - OMAP1_DMA_CCR2_REG(lch) &= ~(1 << 2); + ccr = dma_read(CCR2(lch)); + ccr &= ~(1 << 2); if (sync_mode == OMAP_DMA_SYNC_BLOCK) - OMAP1_DMA_CCR2_REG(lch) |= 1 << 2; + ccr |= 1 << 2; + dma_write(ccr, CCR2(lch)); } if (cpu_class_is_omap2() && dma_trigger) { - u32 val = OMAP_DMA_CCR_REG(lch); + u32 val; + val = dma_read(CCR(lch)); val &= ~(3 << 19); if (dma_trigger > 63) val |= 1 << 20; @@ -263,12 +302,13 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, else val &= ~(1 << 24); /* dest synch */ - OMAP_DMA_CCR_REG(lch) = val; + dma_write(val, CCR(lch)); } - OMAP_DMA_CEN_REG(lch) = elem_count; - OMAP_DMA_CFN_REG(lch) = frame_count; + dma_write(elem_count, CEN(lch)); + dma_write(frame_count, CFN(lch)); } +EXPORT_SYMBOL(omap_set_dma_transfer_params); void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) { @@ -281,7 +321,9 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) return; } - w = OMAP1_DMA_CCR2_REG(lch) & ~0x03; + w = dma_read(CCR2(lch)); + w &= ~0x03; + switch (mode) { case OMAP_DMA_CONSTANT_FILL: w |= 0x01; @@ -294,52 +336,81 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) default: BUG(); } - OMAP1_DMA_CCR2_REG(lch) = w; + dma_write(w, CCR2(lch)); - w = OMAP1_DMA_LCH_CTRL_REG(lch) & ~0x0f; + w = dma_read(LCH_CTRL(lch)); + w &= ~0x0f; /* Default is channel type 2D */ if (mode) { - OMAP1_DMA_COLOR_L_REG(lch) = (u16)color; - OMAP1_DMA_COLOR_U_REG(lch) = (u16)(color >> 16); + dma_write((u16)color, COLOR_L(lch)); + dma_write((u16)(color >> 16), COLOR_U(lch)); w |= 1; /* Channel type G */ } - OMAP1_DMA_LCH_CTRL_REG(lch) = w; + dma_write(w, LCH_CTRL(lch)); } +EXPORT_SYMBOL(omap_set_dma_color_mode); void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode) { if (cpu_class_is_omap2()) { - OMAP_DMA_CSDP_REG(lch) &= ~(0x3 << 16); - OMAP_DMA_CSDP_REG(lch) |= (mode << 16); + u32 csdp; + + csdp = dma_read(CSDP(lch)); + csdp &= ~(0x3 << 16); + csdp |= (mode << 16); + dma_write(csdp, CSDP(lch)); + } +} +EXPORT_SYMBOL(omap_set_dma_write_mode); + +void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode) +{ + if (cpu_class_is_omap1() && !cpu_is_omap15xx()) { + u32 l; + + l = dma_read(LCH_CTRL(lch)); + l &= ~0x7; + l |= mode; + dma_write(l, LCH_CTRL(lch)); } } +EXPORT_SYMBOL(omap_set_dma_channel_mode); /* Note that src_port is only for omap1 */ void omap_set_dma_src_params(int lch, int src_port, int src_amode, unsigned long src_start, int src_ei, int src_fi) { + u32 l; + if (cpu_class_is_omap1()) { - OMAP_DMA_CSDP_REG(lch) &= ~(0x1f << 2); - OMAP_DMA_CSDP_REG(lch) |= src_port << 2; + u16 w; + + w = dma_read(CSDP(lch)); + w &= ~(0x1f << 2); + w |= src_port << 2; + dma_write(w, CSDP(lch)); } - OMAP_DMA_CCR_REG(lch) &= ~(0x03 << 12); - OMAP_DMA_CCR_REG(lch) |= src_amode << 12; + l = dma_read(CCR(lch)); + l &= ~(0x03 << 12); + l |= src_amode << 12; + dma_write(l, CCR(lch)); if (cpu_class_is_omap1()) { - OMAP1_DMA_CSSA_U_REG(lch) = src_start >> 16; - OMAP1_DMA_CSSA_L_REG(lch) = src_start; + dma_write(src_start >> 16, CSSA_U(lch)); + dma_write((u16)src_start, CSSA_L(lch)); } if (cpu_class_is_omap2()) - OMAP2_DMA_CSSA_REG(lch) = src_start; + dma_write(src_start, CSSA(lch)); - OMAP_DMA_CSEI_REG(lch) = src_ei; - OMAP_DMA_CSFI_REG(lch) = src_fi; + dma_write(src_ei, CSEI(lch)); + dma_write(src_fi, CSFI(lch)); } +EXPORT_SYMBOL(omap_set_dma_src_params); -void omap_set_dma_params(int lch, struct omap_dma_channel_params * params) +void omap_set_dma_params(int lch, struct omap_dma_channel_params *params) { omap_set_dma_transfer_params(lch, params->data_type, params->elem_count, params->frame_count, @@ -356,28 +427,37 @@ void omap_set_dma_params(int lch, struct omap_dma_channel_params * params) omap_dma_set_prio_lch(lch, params->read_prio, params->write_prio); } +EXPORT_SYMBOL(omap_set_dma_params); void omap_set_dma_src_index(int lch, int eidx, int fidx) { - if (cpu_class_is_omap2()) { - REVISIT_24XX(); + if (cpu_class_is_omap2()) return; - } - OMAP_DMA_CSEI_REG(lch) = eidx; - OMAP_DMA_CSFI_REG(lch) = fidx; + + dma_write(eidx, CSEI(lch)); + dma_write(fidx, CSFI(lch)); } +EXPORT_SYMBOL(omap_set_dma_src_index); void omap_set_dma_src_data_pack(int lch, int enable) { - OMAP_DMA_CSDP_REG(lch) &= ~(1 << 6); + u32 l; + + l = dma_read(CSDP(lch)); + l &= ~(1 << 6); if (enable) - OMAP_DMA_CSDP_REG(lch) |= (1 << 6); + l |= (1 << 6); + dma_write(l, CSDP(lch)); } +EXPORT_SYMBOL(omap_set_dma_src_data_pack); void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) { unsigned int burst = 0; - OMAP_DMA_CSDP_REG(lch) &= ~(0x03 << 7); + u32 l; + + l = dma_read(CSDP(lch)); + l &= ~(0x03 << 7); switch (burst_mode) { case OMAP_DMA_DATA_BURST_DIS: @@ -408,55 +488,73 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) default: BUG(); } - OMAP_DMA_CSDP_REG(lch) |= (burst << 7); + + l |= (burst << 7); + dma_write(l, CSDP(lch)); } +EXPORT_SYMBOL(omap_set_dma_src_burst_mode); /* Note that dest_port is only for OMAP1 */ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, unsigned long dest_start, int dst_ei, int dst_fi) { + u32 l; + if (cpu_class_is_omap1()) { - OMAP_DMA_CSDP_REG(lch) &= ~(0x1f << 9); - OMAP_DMA_CSDP_REG(lch) |= dest_port << 9; + l = dma_read(CSDP(lch)); + l &= ~(0x1f << 9); + l |= dest_port << 9; + dma_write(l, CSDP(lch)); } - OMAP_DMA_CCR_REG(lch) &= ~(0x03 << 14); - OMAP_DMA_CCR_REG(lch) |= dest_amode << 14; + l = dma_read(CCR(lch)); + l &= ~(0x03 << 14); + l |= dest_amode << 14; + dma_write(l, CCR(lch)); if (cpu_class_is_omap1()) { - OMAP1_DMA_CDSA_U_REG(lch) = dest_start >> 16; - OMAP1_DMA_CDSA_L_REG(lch) = dest_start; + dma_write(dest_start >> 16, CDSA_U(lch)); + dma_write(dest_start, CDSA_L(lch)); } if (cpu_class_is_omap2()) - OMAP2_DMA_CDSA_REG(lch) = dest_start; + dma_write(dest_start, CDSA(lch)); - OMAP_DMA_CDEI_REG(lch) = dst_ei; - OMAP_DMA_CDFI_REG(lch) = dst_fi; + dma_write(dst_ei, CDEI(lch)); + dma_write(dst_fi, CDFI(lch)); } +EXPORT_SYMBOL(omap_set_dma_dest_params); void omap_set_dma_dest_index(int lch, int eidx, int fidx) { - if (cpu_class_is_omap2()) { - REVISIT_24XX(); + if (cpu_class_is_omap2()) return; - } - OMAP_DMA_CDEI_REG(lch) = eidx; - OMAP_DMA_CDFI_REG(lch) = fidx; + + dma_write(eidx, CDEI(lch)); + dma_write(fidx, CDFI(lch)); } +EXPORT_SYMBOL(omap_set_dma_dest_index); void omap_set_dma_dest_data_pack(int lch, int enable) { - OMAP_DMA_CSDP_REG(lch) &= ~(1 << 13); + u32 l; + + l = dma_read(CSDP(lch)); + l &= ~(1 << 13); if (enable) - OMAP_DMA_CSDP_REG(lch) |= 1 << 13; + l |= 1 << 13; + dma_write(l, CSDP(lch)); } +EXPORT_SYMBOL(omap_set_dma_dest_data_pack); void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) { unsigned int burst = 0; - OMAP_DMA_CSDP_REG(lch) &= ~(0x03 << 14); + u32 l; + + l = dma_read(CSDP(lch)); + l &= ~(0x03 << 14); switch (burst_mode) { case OMAP_DMA_DATA_BURST_DIS: @@ -486,8 +584,10 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) BUG(); return; } - OMAP_DMA_CSDP_REG(lch) |= (burst << 14); + l |= (burst << 14); + dma_write(l, CSDP(lch)); } +EXPORT_SYMBOL(omap_set_dma_dest_burst_mode); static inline void omap_enable_channel_irq(int lch) { @@ -495,64 +595,74 @@ static inline void omap_enable_channel_irq(int lch) /* Clear CSR */ if (cpu_class_is_omap1()) - status = OMAP_DMA_CSR_REG(lch); + status = dma_read(CSR(lch)); else if (cpu_class_is_omap2()) - OMAP_DMA_CSR_REG(lch) = OMAP2_DMA_CSR_CLEAR_MASK; + dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch)); /* Enable some nice interrupts. */ - OMAP_DMA_CICR_REG(lch) = dma_chan[lch].enabled_irqs; - - dma_chan[lch].flags |= OMAP_DMA_ACTIVE; + dma_write(dma_chan[lch].enabled_irqs, CICR(lch)); } static void omap_disable_channel_irq(int lch) { if (cpu_class_is_omap2()) - OMAP_DMA_CICR_REG(lch) = 0; + dma_write(0, CICR(lch)); } void omap_enable_dma_irq(int lch, u16 bits) { dma_chan[lch].enabled_irqs |= bits; } +EXPORT_SYMBOL(omap_enable_dma_irq); void omap_disable_dma_irq(int lch, u16 bits) { dma_chan[lch].enabled_irqs &= ~bits; } +EXPORT_SYMBOL(omap_disable_dma_irq); static inline void enable_lnk(int lch) { + u32 l; + + l = dma_read(CLNK_CTRL(lch)); + if (cpu_class_is_omap1()) - OMAP_DMA_CLNK_CTRL_REG(lch) &= ~(1 << 14); + l &= ~(1 << 14); /* Set the ENABLE_LNK bits */ if (dma_chan[lch].next_lch != -1) - OMAP_DMA_CLNK_CTRL_REG(lch) = - dma_chan[lch].next_lch | (1 << 15); + l = dma_chan[lch].next_lch | (1 << 15); #ifndef CONFIG_ARCH_OMAP1 - if (dma_chan[lch].next_linked_ch != -1) - OMAP_DMA_CLNK_CTRL_REG(lch) = - dma_chan[lch].next_linked_ch | (1 << 15); + if (cpu_class_is_omap2()) + if (dma_chan[lch].next_linked_ch != -1) + l = dma_chan[lch].next_linked_ch | (1 << 15); #endif + + dma_write(l, CLNK_CTRL(lch)); } static inline void disable_lnk(int lch) { + u32 l; + + l = dma_read(CLNK_CTRL(lch)); + /* Disable interrupts */ if (cpu_class_is_omap1()) { - OMAP_DMA_CICR_REG(lch) = 0; + dma_write(0, CICR(lch)); /* Set the STOP_LNK bit */ - OMAP_DMA_CLNK_CTRL_REG(lch) |= 1 << 14; + l |= 1 << 14; } if (cpu_class_is_omap2()) { omap_disable_channel_irq(lch); /* Clear the ENABLE_LNK bit */ - OMAP_DMA_CLNK_CTRL_REG(lch) &= ~(1 << 15); + l &= ~(1 << 15); } + dma_write(l, CLNK_CTRL(lch)); dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE; } @@ -563,13 +673,13 @@ static inline void omap2_enable_irq_lch(int lch) if (!cpu_class_is_omap2()) return; - val = omap_readl(OMAP_DMA4_IRQENABLE_L0); + val = dma_read(IRQENABLE_L0); val |= 1 << lch; - omap_writel(val, OMAP_DMA4_IRQENABLE_L0); + dma_write(val, IRQENABLE_L0); } int omap_request_dma(int dev_id, const char *dev_name, - void (* callback)(int lch, u16 ch_status, void *data), + void (*callback)(int lch, u16 ch_status, void *data), void *data, int *dma_ch_out) { int ch, free_ch = -1; @@ -602,10 +712,14 @@ int omap_request_dma(int dev_id, const char *dev_name, chan->dev_name = dev_name; chan->callback = callback; chan->data = data; + #ifndef CONFIG_ARCH_OMAP1 - chan->chain_id = -1; - chan->next_linked_ch = -1; + if (cpu_class_is_omap2()) { + chan->chain_id = -1; + chan->next_linked_ch = -1; + } #endif + chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ; if (cpu_class_is_omap1()) @@ -620,26 +734,28 @@ int omap_request_dma(int dev_id, const char *dev_name, set_gdma_dev(free_ch + 1, dev_id); dev_id = free_ch + 1; } - /* Disable the 1510 compatibility mode and set the sync device - * id. */ - OMAP_DMA_CCR_REG(free_ch) = dev_id | (1 << 10); + /* + * Disable the 1510 compatibility mode and set the sync device + * id. + */ + dma_write(dev_id | (1 << 10), CCR(free_ch)); } else if (cpu_is_omap730() || cpu_is_omap15xx()) { - OMAP_DMA_CCR_REG(free_ch) = dev_id; + dma_write(dev_id, CCR(free_ch)); } if (cpu_class_is_omap2()) { omap2_enable_irq_lch(free_ch); - omap_enable_channel_irq(free_ch); /* Clear the CSR register and IRQ status register */ - OMAP_DMA_CSR_REG(free_ch) = OMAP2_DMA_CSR_CLEAR_MASK; - omap_writel(1 << free_ch, OMAP_DMA4_IRQSTATUS_L0); + dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(free_ch)); + dma_write(1 << free_ch, IRQSTATUS_L0); } *dma_ch_out = free_ch; return 0; } +EXPORT_SYMBOL(omap_request_dma); void omap_free_dma(int lch) { @@ -647,11 +763,12 @@ void omap_free_dma(int lch) spin_lock_irqsave(&dma_chan_lock, flags); if (dma_chan[lch].dev_id == -1) { - printk("omap_dma: trying to free nonallocated DMA channel %d\n", + pr_err("omap_dma: trying to free unallocated DMA channel %d\n", lch); spin_unlock_irqrestore(&dma_chan_lock, flags); return; } + dma_chan[lch].dev_id = -1; dma_chan[lch].next_lch = -1; dma_chan[lch].callback = NULL; @@ -659,30 +776,31 @@ void omap_free_dma(int lch) if (cpu_class_is_omap1()) { /* Disable all DMA interrupts for the channel. */ - OMAP_DMA_CICR_REG(lch) = 0; + dma_write(0, CICR(lch)); /* Make sure the DMA transfer is stopped. */ - OMAP_DMA_CCR_REG(lch) = 0; + dma_write(0, CCR(lch)); } if (cpu_class_is_omap2()) { u32 val; /* Disable interrupts */ - val = omap_readl(OMAP_DMA4_IRQENABLE_L0); + val = dma_read(IRQENABLE_L0); val &= ~(1 << lch); - omap_writel(val, OMAP_DMA4_IRQENABLE_L0); + dma_write(val, IRQENABLE_L0); /* Clear the CSR register and IRQ status register */ - OMAP_DMA_CSR_REG(lch) = OMAP2_DMA_CSR_CLEAR_MASK; - omap_writel(1 << lch, OMAP_DMA4_IRQSTATUS_L0); + dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch)); + dma_write(1 << lch, IRQSTATUS_L0); /* Disable all DMA interrupts for the channel. */ - OMAP_DMA_CICR_REG(lch) = 0; + dma_write(0, CICR(lch)); /* Make sure the DMA transfer is stopped. */ - OMAP_DMA_CCR_REG(lch) = 0; + dma_write(0, CCR(lch)); omap_clear_dma(lch); } } +EXPORT_SYMBOL(omap_free_dma); /** * @brief omap_dma_set_global_params : Set global priority settings for dma @@ -710,7 +828,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams) reg = (arb_rate & 0xff) << 16; reg |= (0xff & max_fifo_depth); - omap_writel(reg, OMAP_DMA4_GCR_REG); + dma_write(reg, GCR); } EXPORT_SYMBOL(omap_dma_set_global_params); @@ -727,20 +845,21 @@ int omap_dma_set_prio_lch(int lch, unsigned char read_prio, unsigned char write_prio) { - u32 w; + u32 l; - if (unlikely((lch < 0 || lch >= OMAP_LOGICAL_DMA_CH_COUNT))) { + if (unlikely((lch < 0 || lch >= dma_lch_count))) { printk(KERN_ERR "Invalid channel id\n"); return -EINVAL; } - w = OMAP_DMA_CCR_REG(lch); - w &= ~((1 << 6) | (1 << 26)); + l = dma_read(CCR(lch)); + l &= ~((1 << 6) | (1 << 26)); if (cpu_is_omap2430() || cpu_is_omap34xx()) - w |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26); + l |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26); else - w |= ((read_prio & 0x1) << 6); + l |= ((read_prio & 0x1) << 6); + + dma_write(l, CCR(lch)); - OMAP_DMA_CCR_REG(lch) = w; return 0; } EXPORT_SYMBOL(omap_dma_set_prio_lch); @@ -756,28 +875,34 @@ void omap_clear_dma(int lch) local_irq_save(flags); if (cpu_class_is_omap1()) { - int status; - OMAP_DMA_CCR_REG(lch) &= ~OMAP_DMA_CCR_EN; + u32 l; + + l = dma_read(CCR(lch)); + l &= ~OMAP_DMA_CCR_EN; + dma_write(l, CCR(lch)); /* Clear pending interrupts */ - status = OMAP_DMA_CSR_REG(lch); + l = dma_read(CSR(lch)); } if (cpu_class_is_omap2()) { int i; - u32 lch_base = OMAP_DMA4_BASE + lch * 0x60 + 0x80; + void __iomem *lch_base = omap_dma_base + OMAP_DMA4_CH_BASE(lch); for (i = 0; i < 0x44; i += 4) - omap_writel(0, lch_base + i); + __raw_writel(0, lch_base + i); } local_irq_restore(flags); } +EXPORT_SYMBOL(omap_clear_dma); void omap_start_dma(int lch) { + u32 l; + if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch; - char dma_chan_link_map[OMAP_LOGICAL_DMA_CH_COUNT]; + char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT]; dma_chan_link_map[lch] = 1; /* Set the link register of the first channel */ @@ -801,27 +926,34 @@ void omap_start_dma(int lch) } while (next_lch != -1); } else if (cpu_class_is_omap2()) { /* Errata: Need to write lch even if not using chaining */ - OMAP_DMA_CLNK_CTRL_REG(lch) = lch; + dma_write(lch, CLNK_CTRL(lch)); } omap_enable_channel_irq(lch); - /* Errata: On ES2.0 BUFFERING disable must be set. - * This will always fail on ES1.0 */ - if (cpu_is_omap24xx()) { - OMAP_DMA_CCR_REG(lch) |= OMAP_DMA_CCR_EN; - } + l = dma_read(CCR(lch)); - OMAP_DMA_CCR_REG(lch) |= OMAP_DMA_CCR_EN; + /* + * Errata: On ES2.0 BUFFERING disable must be set. + * This will always fail on ES1.0 + */ + if (cpu_is_omap24xx()) + l |= OMAP_DMA_CCR_EN; + + l |= OMAP_DMA_CCR_EN; + dma_write(l, CCR(lch)); |