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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 09:19:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 09:19:26 -0700 |
| commit | 73c583e4e2dd0fbbf2fafe0cc57ff75314fe72df (patch) | |
| tree | b2fb05a6d199c0f6653fff84b67159af8f228760 /arch/arm/plat-omap | |
| parent | 5ce00289875a853280985aee671258795b77e089 (diff) | |
| parent | 1f685b36dbf27db55072fb738aac57aaf37d2c71 (diff) | |
| download | linux-73c583e4e2dd0fbbf2fafe0cc57ff75314fe72df.tar.bz2 | |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (47 commits)
OMAP clock: use debugfs_remove_recursive() for rewinding
OMAP2/3/4 core: create omap_device layer
OMAP: omap_hwmod: call omap_hwmod init at boot; create interconnects
OMAP2/3/4: create omap_hwmod layer
OMAP2/3 board-*.c files: read bootloader configuration earlier
OMAP2/3/4 PRCM: add module IDLEST wait code
OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM no-op layer
OMAP3 clock: remove superfluous calls to omap2_init_clk_clkdm
OMAP clock: associate MPU clocks with the mpu_clkdm
OMAP3 clock: Fixed processing of bootarg 'mpurate'
OMAP: SDRC: Add several new register definitions
OMAP: powerdomain: Fix overflow when doing powerdomain deps lookups.
OMAP: PM: Added suspend target state control to debugfs for OMAP3
OMAP: PM debug: Add PRCM register dump support
OMAP: PM debug: make powerdomains use PM-debug counters
OMAP: PM: Add pm-debug counters
OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each.
OMAP: PM: Hook into PM counters
OMAP: PM counter infrastructure.
OMAP3: PM: fix lockdep warning caused by omap3_pm_init
...
Diffstat (limited to 'arch/arm/plat-omap')
30 files changed, 2598 insertions, 241 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index efe85d095190..64b3f52bd9b2 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -120,6 +120,10 @@ config OMAP_MBOX_FWK config OMAP_IOMMU tristate +config OMAP_IOMMU_DEBUG + depends on OMAP_IOMMU + tristate + choice prompt "System timer" default OMAP_MPU_TIMER @@ -183,6 +187,19 @@ config OMAP_SERIAL_WAKE to data on the serial RX line. This allows you to wake the system from serial console. +choice + prompt "OMAP PM layer selection" + depends on ARCH_OMAP + default OMAP_PM_NOOP + +config OMAP_PM_NONE + bool "No PM layer" + +config OMAP_PM_NOOP + bool "No-op/debug PM layer" + +endchoice + endmenu endif diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile index a83279523958..98f01910c2cf 100644 --- a/arch/arm/plat-omap/Makefile +++ b/arch/arm/plat-omap/Makefile @@ -12,8 +12,13 @@ obj- := # OCPI interconnect support for 1710, 1610 and 5912 obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o +# omap_device support (OMAP2+ only at the moment) +obj-$(CONFIG_ARCH_OMAP2) += omap_device.o +obj-$(CONFIG_ARCH_OMAP3) += omap_device.o + obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o obj-$(CONFIG_OMAP_IOMMU) += iommu.o iovmm.o +obj-$(CONFIG_OMAP_IOMMU_DEBUG) += iommu-debug.o obj-$(CONFIG_CPU_FREQ) += cpu-omap.o obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o @@ -25,3 +30,4 @@ obj-y += $(i2c-omap-m) $(i2c-omap-y) # OMAP mailbox framework obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox.o +obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o
\ No newline at end of file diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index e8c327a45a55..bf880e966d3b 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -488,7 +488,7 @@ static int __init clk_debugfs_init(void) } return 0; err_out: - debugfs_remove(clk_debugfs_root); /* REVISIT: Cleanup correctly */ + debugfs_remove_recursive(clk_debugfs_root); return err; } late_initcall(clk_debugfs_init); diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 95587b6c0259..3a4768d55895 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -54,50 +54,6 @@ static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out) struct omap_board_config_kernel *kinfo = NULL; int i; -#ifdef CONFIG_OMAP_BOOT_TAG - struct omap_board_config_entry *info = NULL; - - if (omap_bootloader_tag_len > 4) - info = (struct omap_board_config_entry *) omap_bootloader_tag; - while (info != NULL) { - u8 *next; - - if (info->tag == tag) { - if (skip == 0) - break; - skip--; - } - - if ((info->len & 0x03) != 0) { - /* We bail out to avoid an alignment fault */ - printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n", - info->len, info->tag); - return NULL; - } - next = (u8 *) info + sizeof(*info) + info->len; - if (next >= omap_bootloader_tag + omap_bootloader_tag_len) - info = NULL; - else - info = (struct omap_board_config_entry *) next; - } - if (info != NULL) { - /* Check the length as a lame attempt to check for - * binary inconsistency. */ - if (len != NO_LENGTH_CHECK) { - /* Word-align len */ - if (len & 0x03) - len = (len + 3) & ~0x03; - if (info->len != len) { - printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n", - tag, len, info->len); - return NULL; - } - } - if (len_out != NULL) - *len_out = info->len; - return info->data; - } -#endif /* Try to find the config from the board-specific structures * in the kernel. */ for (i = 0; i < omap_board_config_size; i++) { @@ -127,50 +83,6 @@ const void *omap_get_var_config(u16 tag, size_t *len) } EXPORT_SYMBOL(omap_get_var_config); -static int __init omap_add_serial_console(void) -{ - const struct omap_serial_console_config *con_info; - const struct omap_uart_config *uart_info; - static char speed[11], *opt = NULL; - int line, i, uart_idx; - - uart_info = omap_get_config(OMAP_TAG_UART, struct omap_uart_config); - con_info = omap_get_config(OMAP_TAG_SERIAL_CONSOLE, - struct omap_serial_console_config); - if (uart_info == NULL || con_info == NULL) - return 0; - - if (con_info->console_uart == 0) - return 0; - - if (con_info->console_speed) { - snprintf(speed, sizeof(speed), "%u", con_info->console_speed); - opt = speed; - } - - uart_idx = con_info->console_uart - 1; - if (uart_idx >= OMAP_MAX_NR_PORTS) { - printk(KERN_INFO "Console: external UART#%d. " - "Not adding it as console this time.\n", - uart_idx + 1); - return 0; - } - if (!(uart_info->enabled_uarts & (1 << uart_idx))) { - printk(KERN_ERR "Console: Selected UART#%d is " - "not enabled for this platform\n", - uart_idx + 1); - return -1; - } - line = 0; - for (i = 0; i < uart_idx; i++) { - if (uart_info->enabled_uarts & (1 << i)) - line++; - } - return add_preferred_console("ttyS", line, opt); -} -console_initcall(omap_add_serial_console); - - /* * 32KHz clocksource ... always available, on pretty most chips except * OMAP 730 and 1510. Other timers could be used as clocksources, with diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 9b00f4cbc903..fd3154ae69b1 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -2347,16 +2347,16 @@ static int __init omap_init_dma(void) int ch, r; if (cpu_class_is_omap1()) { - omap_dma_base = IO_ADDRESS(OMAP1_DMA_BASE); + omap_dma_base = OMAP1_IO_ADDRESS(OMAP1_DMA_BASE); dma_lch_count = OMAP1_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap24xx()) { - omap_dma_base = IO_ADDRESS(OMAP24XX_DMA4_BASE); + omap_dma_base = OMAP2_IO_ADDRESS(OMAP24XX_DMA4_BASE); dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap34xx()) { - omap_dma_base = IO_ADDRESS(OMAP34XX_DMA4_BASE); + omap_dma_base = OMAP2_IO_ADDRESS(OMAP34XX_DMA4_BASE); dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else if (cpu_is_omap44xx()) { - omap_dma_base = IO_ADDRESS(OMAP44XX_DMA4_BASE); + omap_dma_base = OMAP2_IO_ADDRESS(OMAP44XX_DMA4_BASE); dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; } else { pr_err("DMA init failed for unsupported omap\n"); diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index 7f50b6103dee..d325b54daeb5 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -774,7 +774,10 @@ int __init omap_dm_timer_init(void) for (i = 0; i < dm_timer_count; i++) { timer = &dm_timers[i]; - timer->io_base = IO_ADDRESS(timer->phys_base); + if (cpu_class_is_omap1()) + timer->io_base = OMAP1_IO_ADDRESS(timer->phys_base); + else + timer->io_base = OMAP2_IO_ADDRESS(timer->phys_base); #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ defined(CONFIG_ARCH_OMAP4) if (cpu_class_is_omap2()) { diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 176c86e5531d..693839c89ad0 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -31,7 +31,7 @@ /* * OMAP1510 GPIO registers */ -#define OMAP1510_GPIO_BASE IO_ADDRESS(0xfffce000) +#define OMAP1510_GPIO_BASE OMAP1_IO_ADDRESS(0xfffce000) #define OMAP1510_GPIO_DATA_INPUT 0x00 #define OMAP1510_GPIO_DATA_OUTPUT 0x04 #define OMAP1510_GPIO_DIR_CONTROL 0x08 @@ -45,10 +45,10 @@ /* * OMAP1610 specific GPIO registers */ -#define OMAP1610_GPIO1_BASE IO_ADDRESS(0xfffbe400) -#define OMAP1610_GPIO2_BASE IO_ADDRESS(0xfffbec00) -#define OMAP1610_GPIO3_BASE IO_ADDRESS(0xfffbb400) -#define OMAP1610_GPIO4_BASE IO_ADDRESS(0xfffbbc00) +#define OMAP1610_GPIO1_BASE OMAP1_IO_ADDRESS(0xfffbe400) +#define OMAP1610_GPIO2_BASE OMAP1_IO_ADDRESS(0xfffbec00) +#define OMAP1610_GPIO3_BASE OMAP1_IO_ADDRESS(0xfffbb400) +#define OMAP1610_GPIO4_BASE OMAP1_IO_ADDRESS(0xfffbbc00) #define OMAP1610_GPIO_REVISION 0x0000 #define OMAP1610_GPIO_SYSCONFIG 0x0010 #define OMAP1610_GPIO_SYSSTATUS 0x0014 @@ -70,12 +70,12 @@ /* * OMAP730 specific GPIO registers */ -#define OMAP730_GPIO1_BASE IO_ADDRESS(0xfffbc000) -#define OMAP730_GPIO2_BASE IO_ADDRESS(0xfffbc800) -#define OMAP730_GPIO3_BASE IO_ADDRESS(0xfffbd000) -#define OMAP730_GPIO4_BASE IO_ADDRESS(0xfffbd800) -#define OMAP730_GPIO5_BASE IO_ADDRESS(0xfffbe000) -#define OMAP730_GPIO6_BASE IO_ADDRESS(0xfffbe800) +#define OMAP730_GPIO1_BASE OMAP1_IO_ADDRESS(0xfffbc000) +#define OMAP730_GPIO2_BASE OMAP1_IO_ADDRESS(0xfffbc800) +#define OMAP730_GPIO3_BASE OMAP1_IO_ADDRESS(0xfffbd000) +#define OMAP730_GPIO4_BASE OMAP1_IO_ADDRESS(0xfffbd800) +#define OMAP730_GPIO5_BASE OMAP1_IO_ADDRESS(0xfffbe000) +#define OMAP730_GPIO6_BASE OMAP1_IO_ADDRESS(0xfffbe800) #define OMAP730_GPIO_DATA_INPUT 0x00 #define OMAP730_GPIO_DATA_OUTPUT 0x04 #define OMAP730_GPIO_DIR_CONTROL 0x08 @@ -86,12 +86,12 @@ /* * OMAP850 specific GPIO registers */ -#define OMAP850_GPIO1_BASE IO_ADDRESS(0xfffbc000) -#define OMAP850_GPIO2_BASE IO_ADDRESS(0xfffbc800) -#define OMAP850_GPIO3_BASE IO_ADDRESS(0xfffbd000) -#define OMAP850_GPIO4_BASE IO_ADDRESS(0xfffbd800) -#define OMAP850_GPIO5_BASE IO_ADDRESS(0xfffbe000) -#define OMAP850_GPIO6_BASE IO_ADDRESS(0xfffbe800) +#define OMAP850_GPIO1_BASE OMAP1_IO_ADDRESS(0xfffbc000) +#define OMAP850_GPIO2_BASE OMAP1_IO_ADDRESS(0xfffbc800) +#define OMAP850_GPIO3_BASE OMAP1_IO_ADDRESS(0xfffbd000) +#define OMAP850_GPIO4_BASE OMAP1_IO_ADDRESS(0xfffbd800) +#define OMAP850_GPIO5_BASE OMAP1_IO_ADDRESS(0xfffbe000) +#define OMAP850_GPIO6_BASE OMAP1_IO_ADDRESS(0xfffbe800) #define OMAP850_GPIO_DATA_INPUT 0x00 #define OMAP850_GPIO_DATA_OUTPUT 0x04 #define OMAP850_GPIO_DIR_CONTROL 0x08 @@ -99,19 +99,21 @@ #define OMAP850_GPIO_INT_MASK 0x10 #define OMAP850_GPIO_INT_STATUS 0x14 +#define OMAP1_MPUIO_VBASE OMAP1_IO_ADDRESS(OMAP1_MPUIO_BASE) + /* * omap24xx specific GPIO registers */ -#define OMAP242X_GPIO1_BASE IO_ADDRESS(0x48018000) -#define OMAP242X_GPIO2_BASE IO_ADDRESS(0x4801a000) -#define OMAP242X_GPIO3_BASE IO_ADDRESS(0x4801c000) -#define OMAP242X_GPIO4_BASE IO_ADDRESS(0x4801e000) +#define OMAP242X_GPIO1_BASE OMAP2_IO_ADDRESS(0x48018000) +#define OMAP242X_GPIO2_BASE OMAP2_IO_ADDRESS(0x4801a000) +#define OMAP242X_GPIO3_BASE OMAP2_IO_ADDRESS(0x4801c000) +#define OMAP242X_GPIO4_BASE OMAP2_IO_ADDRESS(0x4801e000) -#define OMAP243X_GPIO1_BASE IO_ADDRESS(0x4900C000) -#define OMAP243X_GPIO2_BASE IO_ADDRESS(0x4900E000) -#define OMAP243X_GPIO3_BASE IO_ADDRESS(0x49010000) -#define OMAP243X_GPIO4_BASE IO_ADDRESS(0x49012000) -#define OMAP243X_GPIO5_BASE IO_ADDRESS(0x480B6000) +#define OMAP243X_GPIO1_BASE OMAP2_IO_ADDRESS(0x4900C000) +#define OMAP243X_GPIO2_BASE OMAP2_IO_ADDRESS(0x4900E000) +#define OMAP243X_GPIO3_BASE OMAP2_IO_ADDRESS(0x49010000) +#define OMAP243X_GPIO4_BASE OMAP2_IO_ADDRESS(0x49012000) +#define OMAP243X_GPIO5_BASE OMAP2_IO_ADDRESS(0x480B6000) #define OMAP24XX_GPIO_REVISION 0x0000 #define OMAP24XX_GPIO_SYSCONFIG 0x0010 @@ -168,24 +170,22 @@ * omap34xx specific GPIO registers */ -#define OMAP34XX_GPIO1_BASE IO_ADDRESS(0x48310000) -#define OMAP34XX_GPIO2_BASE IO_ADDRESS(0x49050000) -#define OMAP34XX_GPIO3_BASE IO_ADDRESS(0x49052000) -#define OMAP34XX_GPIO4_BASE IO_ADDRESS(0x49054000) -#define OMAP34XX_GPIO5_BASE IO_ADDRESS(0x49056000) -#define OMAP34XX_GPIO6_BASE IO_ADDRESS(0x49058000) +#define OMAP34XX_GPIO1_BASE OMAP2_IO_ADDRESS(0x48310000) +#define OMAP34XX_GPIO2_BASE OMAP2_IO_ADDRESS(0x49050000) +#define OMAP34XX_GPIO3_BASE OMAP2_IO_ADDRESS(0x49052000) +#define OMAP34XX_GPIO4_BASE OMAP2_IO_ADDRESS(0x49054000) +#define OMAP34XX_GPIO5_BASE OMAP2_IO_ADDRESS(0x49056000) +#define OMAP34XX_GPIO6_BASE OMAP2_IO_ADDRESS(0x49058000) /* * OMAP44XX specific GPIO registers */ -#define OMAP44XX_GPIO1_BASE IO_ADDRESS(0x4a310000) -#define OMAP44XX_GPIO2_BASE IO_ADDRESS(0x48055000) -#define OMAP44XX_GPIO3_BASE IO_ADDRESS(0x48057000) -#define OMAP44XX_GPIO4_BASE IO_ADDRESS(0x48059000) -#define OMAP44XX_GPIO5_BASE IO_ADDRESS(0x4805B000) -#define OMAP44XX_GPIO6_BASE IO_ADDRESS(0x4805D000) - -#define OMAP_MPUIO_VBASE IO_ADDRESS(OMAP_MPUIO_BASE) +#define OMAP44XX_GPIO1_BASE OMAP2_IO_ADDRESS(0x4a310000) +#define OMAP44XX_GPIO2_BASE OMAP2_IO_ADDRESS(0x48055000) +#define OMAP44XX_GPIO3_BASE OMAP2_IO_ADDRESS(0x48057000) +#define OMAP44XX_GPIO4_BASE OMAP2_IO_ADDRESS(0x48059000) +#define OMAP44XX_GPIO5_BASE OMAP2_IO_ADDRESS(0x4805B000) +#define OMAP44XX_GPIO6_BASE OMAP2_IO_ADDRESS(0x4805D000) struct gpio_bank { void __iomem *base; @@ -221,7 +221,7 @@ struct gpio_bank { #ifdef CONFIG_ARCH_OMAP16XX static struct gpio_bank gpio_bank_1610[5] = { - { OMAP_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO}, + { OMAP1_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO}, { OMAP1610_GPIO1_BASE, INT_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_1610 }, { OMAP1610_GPIO2_BASE, INT_1610_GPIO_BANK2, IH_GPIO_BASE + 16, METHOD_GPIO_1610 }, { OMAP1610_GPIO3_BASE, INT_1610_GPIO_BANK3, IH_GPIO_BASE + 32, METHOD_GPIO_1610 }, @@ -231,14 +231,14 @@ static struct gpio_bank gpio_bank_1610[5] = { #ifdef CONFIG_ARCH_OMAP15XX static struct gpio_bank gpio_bank_1510[2] = { - { OMAP_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, + { OMAP1_MPUIO_VBASE, INT_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, { OMAP1510_GPIO_BASE, INT_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_1510 } }; #endif #ifdef CONFIG_ARCH_OMAP730 static struct gpio_bank gpio_bank_730[7] = { - { OMAP_MPUIO_VBASE, INT_730_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, + { OMAP1_MPUIO_VBASE, INT_730_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, { OMAP730_GPIO1_BASE, INT_730_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_730 }, { OMAP730_GPIO2_BASE, INT_730_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_730 }, { OMAP730_GPIO3_BASE, INT_730_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_730 }, @@ -250,7 +250,7 @@ static struct gpio_bank gpio_bank_730[7] = { #ifdef CONFIG_ARCH_OMAP850 static struct gpio_bank gpio_bank_850[7] = { - { OMAP_MPUIO_BASE, INT_850_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, + { OMAP1_MPUIO_BASE, INT_850_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO }, { OMAP850_GPIO1_BASE, INT_850_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_850 }, { OMAP850_GPIO2_BASE, INT_850_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_850 }, { OMAP850_GPIO3_BASE, INT_850_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_850 }, @@ -2032,7 +2032,7 @@ void omap2_gpio_resume_after_retention(void) return; for (i = 0; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; - u32 l; + u32 l, gen, gen0, gen1; if (!(bank->enabled_non_wakeup_gpios)) continue; @@ -2056,13 +2056,32 @@ void omap2_gpio_resume_after_retention(void) * this silicon bug. */ l ^= bank->saved_datain; l &= bank->non_wakeup_gpios; - if (l) { + + /* + * No need to generate IRQs for the rising edge for gpio IRQs + * configured with falling edge only; and vice versa. + */ + gen0 = l & bank->saved_fallingdetect; + gen0 &= bank->saved_datain; + + gen1 = l & bank->saved_risingdetect; + gen1 &= ~(bank->saved_datain); + + /* FIXME: Consider GPIO IRQs with level detections properly! */ + gen = l & (~(bank->saved_fallingdetect) & + ~(bank->saved_risingdetect)); + /* Consider all GPIO IRQs needed to be updated */ + gen |= gen0 | gen1; + + if (gen) { u32 old0, old1; #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0); old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); - __raw_writel(old0 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT0); - __raw_writel(old1 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT1); + __raw_writel(old0 | gen, bank->base + + OMAP24XX_GPIO_LEVELDETECT0); + __raw_writel(old1 | gen, bank->base + + OMAP24XX_GPIO_LEVELDETECT1); __raw_writel(old0, bank->base + OMAP24XX_GPIO_LEVELDETECT0); __raw_writel(old1, bank->base + OMAP24XX_GPIO_LEVELDETECT1); #endif diff --git a/arch/arm/plat-omap/include/mach/board.h b/arch/arm/plat-omap/include/mach/board.h index 50ea79a0efa2..8e913c322810 100644 --- a/arch/arm/plat-omap/include/mach/board.h +++ b/arch/arm/plat-omap/include/mach/board.h @@ -16,10 +16,8 @@ /* Different peripheral ids */ #define OMAP_TAG_CLOCK 0x4f01 -#define OMAP_TAG_SERIAL_CONSOLE 0x4f03 #define OMAP_TAG_LCD 0x4f05 #define OMAP_TAG_GPIO_SWITCH 0x4f06 -#define OMAP_TAG_UART 0x4f07 #define OMAP_TAG_FBMEM 0x4f08 #define OMAP_TAG_STI_CONSOLE 0x4f09 #define OMAP_TAG_CAMERA_SENSOR 0x4f0a diff --git a/arch/arm/plat-omap/include/mach/clockdomain.h b/arch/arm/plat-omap/include/mach/clockdomain.h index b9d0dd2da89b..99ebd886f134 100644 --- a/arch/arm/plat-omap/include/mach/clockdomain.h +++ b/arch/arm/plat-omap/include/mach/clockdomain.h @@ -95,7 +95,8 @@ int clkdm_register(struct clockdomain *clkdm); int clkdm_unregister(struct clockdomain *clkdm); struct clockdomain *clkdm_lookup(const char *name); -int clkdm_for_each(int (*fn)(struct clockdomain *clkdm)); +int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user), + void *user); struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm); void omap2_clkdm_allow_idle(struct clockdomain *clkdm); diff --git a/arch/arm/plat-omap/include/mach/control.h b/arch/arm/plat-omap/include/mach/control.h index 8140dbccb7bc..826d317cdbec 100644 --- a/arch/arm/plat-omap/include/mach/control.h +++ b/arch/arm/plat-omap/include/mach/control.h @@ -20,15 +20,15 @@ #ifndef __ASSEMBLY__ #define OMAP242X_CTRL_REGADDR(reg) \ - IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) + OMAP2_IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) #define OMAP243X_CTRL_REGADDR(reg) \ - IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) + OMAP2_IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) #define OMAP343X_CTRL_REGADDR(reg) \ - IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) + OMAP2_IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) #else -#define OMAP242X_CTRL_REGADDR(reg) IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) -#define OMAP243X_CTRL_REGADDR(reg) IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) -#define OMAP343X_CTRL_REGADDR(reg) IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) +#define OMAP242X_CTRL_REGADDR(reg) OMAP2_IO_ADDRESS(OMAP242X_CTRL_BASE + (reg)) +#define OMAP243X_CTRL_REGADDR(reg) OMAP2_IO_ADDRESS(OMAP243X_CTRL_BASE + (reg)) +#define OMAP343X_CTRL_REGADDR(reg) OMAP2_IO_ADDRESS(OMAP343X_CTRL_BASE + (reg)) #endif /* __ASSEMBLY__ */ /* diff --git a/arch/arm/plat-omap/include/mach/entry-macro.S b/arch/arm/plat-omap/include/mach/entry-macro.S index 56426ed45ef4..a5592991634d 100644 --- a/arch/arm/plat-omap/include/mach/entry-macro.S +++ b/arch/arm/plat-omap/include/mach/entry-macro.S @@ -41,7 +41,7 @@ .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \base, =IO_ADDRESS(OMAP_IH1_BASE) + ldr \base, =OMAP1_IO_ADDRESS(OMAP_IH1_BASE) ldr \irqnr, [\base, #IRQ_ITR_REG_OFFSET] ldr \tmp, [\base, #IRQ_MIR_REG_OFFSET] mov \irqstat, #0xffffffff @@ -53,7 +53,7 @@ cmp \irqnr, #0 ldreq \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET] cmpeq \irqnr, #INT_IH2_IRQ - ldreq \base, =IO_ADDRESS(OMAP_IH2_BASE) + ldreq \base, =OMAP1_IO_ADDRESS(OMAP_IH2_BASE) ldreq \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET] addeqs \irqnr, \irqnr, #32 1510: @@ -68,9 +68,9 @@ /* REVISIT: This should be set dynamically if CONFIG_MULTI_OMAP2 is selected */ #if defined(CONFIG_ARCH_OMAP2420) || defined(CONFIG_ARCH_OMAP2430) -#define OMAP2_VA_IC_BASE IO_ADDRESS(OMAP24XX_IC_BASE) +#define OMAP2_VA_IC_BASE OMAP2_IO_ADDRESS(OMAP24XX_IC_BASE) #elif defined(CONFIG_ARCH_OMAP34XX) -#define OMAP2_VA_IC_BASE IO_ADDRESS(OMAP34XX_IC_BASE) +#define OMAP2_VA_IC_BASE OMAP2_IO_ADDRESS(OMAP34XX_IC_BASE) #endif #if defined(CONFIG_ARCH_OMAP4) #include <mach/omap44xx.h> diff --git a/arch/arm/plat-omap/include/mach/gpio.h b/arch/arm/plat-omap/include/mach/gpio.h index 2b22a8799bc6..633ff688b928 100644 --- a/arch/arm/plat-omap/include/mach/gpio.h +++ b/arch/arm/plat-omap/include/mach/gpio.h @@ -29,7 +29,7 @@ #include <linux/io.h> #include <mach/irqs.h> -#define OMAP_MPUIO_BASE 0xfffb5000 +#define OMAP1_MPUIO_BASE 0xfffb5000 #if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)) diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 21fb0efdda86..8d32df32b0b1 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -54,17 +54,33 @@ * ---------------------------------------------------------------------------- */ -#if defined(CONFIG_ARCH_OMAP1) +#ifdef __ASSEMBLER__ +#define IOMEM(x) (x) +#else +#define IOMEM(x) ((void __force __iomem *)(x)) +#endif + +#define OMAP1_IO_OFFSET 0x01000000 /* Virtual IO = 0xfefb0000 */ +#define OMAP1_IO_ADDRESS(pa) IOMEM((pa) - OMAP1_IO_OFFSET) + +#define OMAP2_IO_OFFSET 0x90000000 +#define OMAP2_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_IO_OFFSET) /* L3 and L4 */ + +/* + * ---------------------------------------------------------------------------- + * Omap1 specific IO mapping + * ---------------------------------------------------------------------------- + */ -#define IO_PHYS 0xFFFB0000 -#define IO_OFFSET 0x01000000 /* Virtual IO = 0xfefb0000 */ -#define IO_SIZE 0x40000 -#define IO_VIRT (IO_PHYS - IO_OFFSET) -#define __IO_ADDRESS(pa) ((pa) - IO_OFFSET) -#define __OMAP1_IO_ADDRESS(pa) ((pa) - IO_OFFSET) -#define io_v2p(va) ((va) + IO_OFFSET) +#define OMAP1_IO_PHYS 0xFFFB0000 +#define OMAP1_IO_SIZE 0x40000 +#define OMAP1_IO_VIRT (OMAP1_IO_PHYS - OMAP1_IO_OFFSET) -#elif defined(CONFIG_ARCH_OMAP2) +/* + * ---------------------------------------------------------------------------- + * Omap2 specific IO mapping + * ---------------------------------------------------------------------------- + */ /* We map both L3 and L4 on OMAP2 */ #define L3_24XX_PHYS L3_24XX_BASE /* 0x68000000 */ @@ -87,11 +103,6 @@ #define OMAP243X_SMS_VIRT 0xFC000000 #define OMAP243X_SMS_SIZE SZ_1M -#define IO_OFFSET 0x90000000 -#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */ -#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET) /* Works for L3 and L4 */ -#define io_v2p(va) ((va) - IO_OFFSET) /* Works for L3 and L4 */ - /* DSP */ #define DSP_MEM_24XX_PHYS OMAP2420_DSP_MEM_BASE /* 0x58000000 */ #define DSP_MEM_24XX_VIRT 0xe0000000 @@ -103,7 +114,11 @@ #define DSP_MMU_24XX_VIRT 0xe2000000 #define DSP_MMU_24XX_SIZE SZ_4K -#elif defined(CONFIG_ARCH_OMAP3) +/* + * ---------------------------------------------------------------------------- + * Omap3 specific IO mapping + * ---------------------------------------------------------------------------- + */ /* We map both L3 and L4 on OMAP3 */ #define L3_34XX_PHYS L3_34XX_BASE /* 0x68000000 */ @@ -143,12 +158,6 @@ #define OMAP343X_SDRC_VIRT 0xFD000000 #define OMAP343X_SDRC_SIZE SZ_1M - -#define IO_OFFSET 0x90000000 -#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */ -#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */ -#define io_v2p(va) ((va) - IO_OFFSET)/* Works for L3 and L4 */ - /* DSP */ #define DSP_MEM_34XX_PHYS OMAP34XX_DSP_MEM_BASE /* 0x58000000 */ #define DSP_MEM_34XX_VIRT 0xe0000000 @@ -160,8 +169,12 @@ #define DSP_MMU_34XX_VIRT 0xe2000000 #define DSP_MMU_34XX_SIZE SZ_4K +/* + * ---------------------------------------------------------------------------- + * Omap4 specific IO mapping + * ---------------------------------------------------------------------------- + */ -#elif defined(CONFIG_ARCH_OMAP4) /* We map both L3 and L4 on OMAP4 */ #define L3_44XX_PHYS L3_44XX_BASE #define L3_44XX_VIRT 0xd4000000 @@ -189,38 +202,24 @@ #define OMAP44XX_GPMC_SIZE SZ_1M -#define IO_OFFSET 0x90000000 -#define __IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */ -#define __OMAP2_IO_ADDRESS(pa) ((pa) + IO_OFFSET)/* Works for L3 and L4 */ -#define io_v2p(va) ((va) - IO_OFFSET)/* Works for L3 and L4 */ - -#endif - -#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa)) -#define OMAP1_IO_ADDRESS(pa) IOMEM(__OMAP1_IO_ADDRESS(pa)) -#define OMAP2_IO_ADDRESS(pa) IOMEM(__OMAP2_IO_ADDRESS(pa)) +/* + * ---------------------------------------------------------------------------- + * Omap specific register access + * ---------------------------------------------------------------------------- + */ -#ifdef __ASSEMBLER__ -#define IOMEM(x) (x) -#else -#define IOMEM(x) ((void __force __iomem *)(x)) +#ifndef __ASSEMBLER__ /* - * Functions to access the OMAP IO region - * - * NOTE: - Use omap_read/write[bwl] for physical register addresses - * - Use __raw_read/write[bwl]() for virtual register addresses - * - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses - * - DO NOT use hardcoded virtual addresses to allow changing the - * IO address space again if needed + * NOTE: Please use ioremap + __raw_read/write where possible instead of these */ -#define omap_readb(a) __raw_readb(IO_ADDRESS(a)) -#define omap_readw(a) __raw_readw(IO_ADDRESS(a)) -#define omap_readl(a) __raw_readl(IO_ADDRESS(a)) -#define omap_writeb(v,a) __raw_writeb(v, IO_ADDRESS(a)) -#define omap_writew(v,a) __raw_writew(v, IO_ADDRESS(a)) -#define omap_writel(v,a) __raw_writel(v, IO_ADDRESS(a)) +extern u8 omap_readb(u32 pa); +extern u16 omap_readw(u32 pa); +extern u32 omap_readl(u32 pa); +extern void omap_writeb(u8 v, u32 pa); +extern void omap_writew(u16 v, u32 pa); +extern void omap_writel(u32 v, u32 pa); struct omap_sdrc_params; diff --git a/arch/arm/plat-omap/include/mach/iommu.h b/arch/arm/plat-omap/include/mach/iommu.h index 769b00b4c34a..46d41ac83dbf 100644 --- a/arch/arm/plat-omap/include/mach/iommu.h +++ b/arch/arm/plat-omap/include/mach/iommu.h @@ -95,7 +95,7 @@ struct iommu_functions { void (*save_ctx)(struct iommu *obj); void (*restore_ctx)(struct iommu *obj); - ssize_t (*dump_ctx)(struct iommu *obj, char *buf); + ssize_t (*dump_ctx)(struct iommu *obj, char *buf, ssize_t len); }; struct iommu_platform_data { @@ -162,7 +162,7 @@ extern void uninstall_iommu_arch(const struct iommu_functions *ops); extern int foreach_iommu_device(void *data, int (*fn)(struct device *, void *)); -extern ssize_t iommu_dump_ctx(struct iommu *obj, char *buf); -extern size_t dump_tlb_entries(struct iommu *obj, char *buf); +extern ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t len); +extern size_t dump_tlb_entries(struct iommu *obj, char *buf, ssize_t len); #endif /* __MACH_IOMMU_H */ diff --git a/arch/arm/plat-omap/include/mach/mtd-xip.h b/arch/arm/plat-omap/include/mach/mtd-xip.h index 39b591ff54bb..f82a8dcaad94 100644 --- a/arch/arm/plat-omap/include/mach/mtd-xip.h +++ b/arch/arm/plat-omap/include/mach/mtd-xip.h @@ -25,7 +25,7 @@ typedef struct { } xip_omap_mpu_timer_regs_t; #define xip_omap_mpu_timer_base(n) \ -((volatile xip_omap_mpu_timer_regs_t*)IO_ADDRESS(OMAP_MPU_TIMER_BASE + \ +((volatile xip_omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE + \ (n)*OMAP_MPU_TIMER_OFFSET)) static inline unsigned long xip_omap_mpu_timer_read(int nr) diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 80281c458baf..98dfab651dfc 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -857,6 +857,37 @@ enum omap34xx_index { /* OMAP3 SDRC CKE signals to SDR/DDR ram chips */ H16_34XX_SDRC_CKE0, H17_34XX_SDRC_CKE1, + + /* MMC1 */ + N28_3430_MMC1_CLK, + M27_3430_MMC1_CMD, + N27_3430_MMC1_DAT0, + N26_3430_MMC1_DAT1, + N25_3430_MMC1_DAT2, + P28_3430_MMC1_DAT3, + P27_3430_MMC1_DAT4, + P26_3430_MMC1_DAT5, + R27_3430_MMC1_DAT6, + R25_3430_MMC1_DAT7, + + /* MMC2 */ + AE2_3430_MMC2_CLK, + AG5_3430_MMC2_CMD, + AH5_3430_MMC2_DAT0, + AH4_3430_MMC2_DAT1, + AG4_3430_MMC2_DAT2, + AF4_3430_MMC2_DAT3, + + /* MMC3 */ + AF10_3430_MMC3_CLK, + AC3_3430_MMC3_CMD, + AE11_3430_MMC3_DAT0, + AH9_3430_MMC3_DAT1, + AF13_3430_MMC3_DAT2, + AF13_3430_MMC3_DAT3, + + /* SYS_NIRQ T2 INT1 */ + AF26_34XX_SYS_NIRQ, }; struct omap_mux_cfg { diff --git a/arch/arm/plat-omap/include/mach/omap-pm.h b/arch/arm/plat-omap/include/mach/omap-pm.h new file mode 100644 index 000000000000..3ee41d711492 --- /dev/null +++ b/arch/arm/plat-omap/include/mach/omap-pm.h @@ -0,0 +1,301 @@ +/* + * omap-pm.h - OMAP power management interface + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2009 Nokia Corporation + * Paul Walmsley + * + * Interface developed by (in alphabetical order): Karthik Dasu, Jouni + * Högander, Tony Lindgren, Rajendra Nayak, Sakari Poussa, + * Veeramanikandan Raju, Anand Sawant, Igor Stoppa, Paul Walmsley, + * Richard Woodruff + */ + +#ifndef ASM_ARM_ARCH_OMAP_OMAP_PM_H +#define ASM_ARM_ARCH_OMAP_OMAP_PM_H + +#include <linux/device.h> +#include <linux/cpufreq.h> + +#include "powerdomain.h" + +/** + * struct omap_opp - clock frequency-to-OPP ID table for DSP, MPU + * @rate: target clock rate + * @opp_id: OPP ID + * @min_vdd: minimum VDD1 voltage (in millivolts) for this OPP + * + * Operating performance point data. Can vary by OMAP chip and board. + */ +struct omap_opp { + unsigned long rate; + u8 opp_id; + u16 min_vdd; +}; + +extern struct omap_opp *mpu_opps; +extern struct omap_opp *dsp_opps; +extern struct omap_opp *l3_opps; + +/* + * agent_id values for use with omap_pm_set_min_bus_tput(): + * + * OCP_INITIATOR_AGENT is only valid for devices that can act as + * initiators -- it represents the device's L3 interconnect + * connection. OCP_TARGET_AGENT represents the device's L4 + * interconnect connection. + */ +#define OCP_TARGET_AGENT 1 +#define OCP_INITIATOR_AGENT 2 + +/** + * omap_pm_if_early_init - OMAP PM init code called before clock fw init + * @mpu_opp_table: array ptr to struct omap_opp for MPU + * @dsp_opp_table: array ptr to struct omap_opp for DSP + * @l3_opp_table : array ptr to struct omap_opp for CORE + * + * Initialize anything that must be configured before the clock + * framework starts. The "_if_" is to avoid name collisions with the + * PM idle-loop code. + */ +int __init omap_pm_if_early_init(struct omap_opp *mpu_opp_table, + struct omap_opp *dsp_opp_table, + struct omap_opp *l3_opp_table); + +/** + * omap_pm_if_init - OMAP PM init code called after clock fw init + * + * The main initialization code. OPP tables are passed in here. The + * "_if_" is to avoid name collisions with the PM idle-loop code. + */ +int __init omap_pm_if_init(void); + +/** + * omap_pm_if_exit - OMAP PM exit code + * + * Exit code; currently unused. The "_if_" is to avoid name + * collisions with the PM idle-loop code. + */ +void omap_pm_if_exit(void); + +/* + * Device-driver-originated constraints (via board-*.c files, platform_data) + */ + + +/** + * omap_pm_set_max_mpu_wakeup_lat - set the maximum MPU wakeup latency + * @dev: struct device * requesting the constraint + * @t: maximum MPU wakeup latency in microseconds + * + * Request that the maximum interrupt latency for the MPU to be no + * greater than 't' microseconds. "Interrupt latency" in this case is + * defined as the elapsed time from the occurrence of a hardware or + * timer interrupt to the time when the device driver's interrupt + * service routine has been entered by the MPU. + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the MPU powerdomain into, and + * possibly the CORE powerdomain as well, since interrupt handling + * code currently runs from SDRAM. Advanced PM or board*.c code may + * also configure interrupt controller priorities, OCP bus priorities, + * CPU speed(s), etc. + * + * This function will not affect device wakeup latency, e.g., time + * elapsed from when a device driver enables a hardware device with + * clk_enable(), to when the device is ready for register access or + * other use. To control this device wakeup latency, use + * set_max_dev_wakeup_lat() + * + * Multiple calls to set_max_mpu_wakeup_lat() will replace the + * previous t value. To remove the latency target for the MPU, call + * with t = -1. + * + * No return value. + */ +void omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t); + + +/** + * omap_pm_set_min_bus_tput - set minimum bus throughput needed by device + * @dev: struct device * requesting the constraint + * @tbus_id: interconnect to operate on (OCP_{INITIATOR,TARGET}_AGENT) + * @r: minimum throughput (in KiB/s) + * + * Request that the minimum data throughput on the OCP interconnect + * attached to device 'dev' interconnect agent 'tbus_id' be no less + * than 'r' KiB/s. + * + * It is expected that the OMAP PM or bus code will use this + * information to set the interconnect clock to run at the lowest + * possible speed that satisfies all current system users. The PM or + * bus code will adjust the estimate based on its model of the bus, so + * device driver authors should attempt to specify an accurate + * quantity for their device use case, and let the PM or bus code + * overestimate the numbers as necessary to handle request/response + * latency, other competing users on the system, etc. On OMAP2/3, if + * a driver requests a minimum L4 interconnect speed constraint, the + * code will also need to add an minimum L3 interconnect speed + * constraint, + * + * Multiple calls to set_min_bus_tput() will replace the previous rate + * value for this device. To remove the interconnect throughput + * restriction for this device, call with r = 0. + * + * No return value. + */ +void omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r); + + +/** + * omap_pm_set_max_dev_wakeup_lat - set the maximum device enable latency + * @dev: struct device * + * @t: maximum device wakeup latency in microseconds + * + * Request that the maximum amount of time necessary for a device to + * become accessible after its clocks are enabled should be no greater + * than 't' microseconds. Specifically, this represents the time from + * when a device driver enables device clocks with clk_enable(), to + * when the register reads and writes on the device will succeed. + * This function should be called before clk_disable() is called, + * since the power state transition decision may be made during + * clk_disable(). + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the powerdomain enclosing this + * device into. + * + * Multiple calls to set_max_dev_wakeup_lat() will replace the + * previous wakeup latency values for this device. To remove the wakeup + * latency restriction for this device, call with t = -1. + * + * No return value. + */ +void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t); + + +/** + * omap_pm_set_max_sdma_lat - set the maximum system DMA transfer start latency + * @dev: struct device * + * @t: maximum DMA transfer start latency in microseconds + * + * Request that the maximum system DMA transfer start latency for this + * device 'dev' should be no greater than 't' microseconds. "DMA + * transfer start latency" here is defined as the elapsed time from + * when a device (e.g., McBSP) requests that a system DMA transfer + * start or continue, to the time at which data starts to flow into + * that device from the system DMA controller. + * + * It is intended that underlying PM code will use this information to + * determine what power state to put the CORE powerdomain into. + * + * Since system DMA transfers may not involve the MPU, this function + * will not affect MPU wakeup latency. Use set_max_cpu_lat() to do + * so. Similarly, this function will not affect device wakeup latency + * -- use set_max_dev_wakeup_lat() to affect that. + * + * Multiple calls to set_max_sdma_lat() will replace the previous t + * value for this device. To remove the maximum DMA latency for this + * device, call with t = -1. + * + * No return value. + */ +void omap_pm_set_max_sdma_lat(struct device *dev, long t); + + +/* + * DSP Bridge-specific constraints + */ + +/** + * omap_pm_dsp_get_opp_table - get OPP->DSP clock frequency table + * + * Intended for use by DSPBridge. Returns an array of OPP->DSP clock + * frequency entries. The final item in the array should have .rate = + * .opp_id = 0. + */ +const struct omap_opp *omap_pm_dsp_get_opp_table(void); + +/** + * omap_pm_dsp_set_min_opp - receive desired OPP target ID from DSP Bridge + * @opp_id: target DSP OPP ID + * + * Set a minimum OPP ID for the DSP. This is intended to be called + * only from the DSP Bridge MPU-side driver. Unfortunately, the only + * information that code receives from the DSP/BIOS load estimator is the + * target OPP ID; hence, this interface. No return value. + */ +void omap_pm_dsp_set_min_opp(u8 opp_id); + +/** + * omap_pm_dsp_get_opp - report the current DSP OPP ID + * + * Report the current OPP for the DSP. Since on OMAP3, the DSP and + * MPU share a single voltage domain, the OPP ID returned back may + * represent a higher DSP speed than the OPP requested via + * omap_pm_dsp_set_min_opp(). + * + * Returns the current VDD1 OPP ID, or 0 upon error. + */ +u8 omap_pm_dsp_get_opp(void); + + +/* + * CPUFreq-originated constraint + * + * In the future, this should be handled by custom OPP clocktype + * functions. + */ + +/** + * omap_pm_cpu_get_freq_table - return a cpufreq_frequency_table array ptr + * + * Provide a frequency table usable by CPUFreq for the current chip/board. + * Returns a pointer to a struct cpufreq_frequency_table array or NULL + * upon error. + */ +struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void); + +/** + * omap_pm_cpu_set_freq - set the current minimum MPU frequency + * @f: MPU frequency in Hz + * + * Set the current minimum CPU frequency. The actual CPU frequency + * used could end up higher if the DSP requested a higher OPP. + * Intended to be called by plat-omap/cpu_omap.c:omap_target(). No + * return value. + */ +void omap_pm_cpu_set_freq(unsigned long f); + +/** + * omap_pm_cpu_get_freq - report the current CPU frequency + * + * Returns the current MPU frequency, or 0 upon error. + */ +unsigned long omap_pm_cpu_get_freq(void); + + +/* + * Device context loss tracking + */ + +/** + * omap_pm_get_dev_context_loss_count - return count of times dev has lost ctx + * @dev: struct device * + * + * This function returns the number of times that the device @dev has + * lost its internal context. This generally occurs on a powerdomain + * transition to OFF. Drivers use this as an optimization to avoid restoring + * context if the device hasn't lost it. To use, drivers should initially + * call this in their context save functions and store the result. Early in + * the driver's context restore function, the driver should call this function + * again, and compare the result to the stored counter. If they differ, the + * driver must restore device context. If the number of context losses + * exceeds the maximum positive integer, the function will wrap to 0 and + * continue counting. Returns the number of context losses for this device, + * or -EINVAL upon error. + */ +int omap_pm_get_dev_context_loss_count(struct device *dev); + + +#endif diff --git a/arch/arm/plat-omap/include/mach/omap44xx.h b/arch/arm/plat-omap/include/mach/omap44xx.h index 15dec7f1c7c0..b3ba5ac7b4a4 100644 --- a/arch/arm/plat-omap/include/mach/omap44xx.h +++ b/arch/arm/plat-omap/include/mach/omap44xx.h @@ -33,14 +33,14 @@ #define IRQ_SIR_IRQ 0x0040 #define OMAP44XX_GIC_DIST_BASE 0x48241000 #define OMAP44XX_GIC_CPU_BASE 0x48240100 -#define OMAP44XX_VA_GIC_CPU_BASE IO_ADDRESS(OMAP44XX_GIC_CPU_BASE) +#define OMAP44XX_VA_GIC_CPU_BASE OMAP2_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE) #define OMAP44XX_SCU_BASE 0x48240000 -#define OMAP44XX_VA_SCU_BASE IO_ADDRESS(OMAP44XX_SCU_BASE) +#define OMAP44XX_VA_SCU_BASE OMAP2_IO_ADDRESS(OMAP44XX_SCU_BASE) #define OMAP44XX_LOCAL_TWD_BASE 0x48240600 -#define OMAP44XX_VA_LOCAL_TWD_BASE IO_ADDRESS(OMAP44XX_LOCAL_TWD_BASE) +#define OMAP44XX_VA_LOCAL_TWD_BASE OMAP2_IO_ADDRESS(OMAP44XX_LOCAL_TWD_BASE) #define OMAP44XX_LOCAL_TWD_SIZE 0x00000100 #define OMAP44XX_WKUPGEN_BASE 0x48281000 -#define OMAP44XX_VA_WKUPGEN_BASE IO_ADDRESS(OMAP44XX_WKUPGEN_BASE) +#define OMAP44XX_VA_WKUPGEN_BASE OMAP2_IO_ADDRESS(OMAP44XX_WKUPGEN_BASE) #endif /* __ASM_ARCH_OMAP44XX_H */ diff --git a/arch/arm/plat-omap/include/mach/omap_device.h b/arch/arm/plat-omap/include/mach/omap_device.h new file mode 100644 index 000000000000..bd0e136db337 --- /dev/null +++ b/arch/arm/plat-omap/include/mach/omap_device.h @@ -0,0 +1,141 @@ +/* + * omap_device headers + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * 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. + * + * Eventually this type of functionality should either be + * a) implemented via arch-specific pointers in platform_device + * or + * b) implemented as a proper omap_bus/omap_device in Linux, no more + * platform_device + * + * omap_device differs from omap_hwmod in that it includes external + * (e.g., board- and system-level) integration details. omap_hwmod + * stores hardware data that is invariant for a given OMAP chip. + * + * To do: + * - GPIO integration + * - regulator integration + * + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H + +#include <linux/kernel.h> +#include <linux/platform_device.h> + +#include <mach/omap_hwmod.h> + +/* omap_device._state values */ +#define OMAP_DEVICE_STATE_UNKNOWN 0 +#define OMAP_DEVICE_STATE_ENABLED 1 +#define OMAP_DEVICE_STATE_IDLE 2 +#define OMAP_DEVICE_STATE_SHUTDOWN 3 + +/** + * struct omap_device - omap_device wrapper for platform_devices + * @pdev: platform_device + * @hwmods: (one .. many per omap_device) + * @hwmods_cnt: ARRAY_SIZE() of @hwmods + * @pm_lats: ptr to an omap_device_pm_latency table + * @pm_lats_cnt: ARRAY_SIZE() of what is passed to @pm_lats + * @pm_lat_level: array index of the last odpl entry executed - -1 if never + * @dev_wakeup_lat: dev wakeup latency in microseconds + * @_dev_wakeup_lat_limit: dev wakeup latency limit in usec - set by OMAP PM + * @_state: one of OMAP_DEVICE_STATE_* (see above) + * @flags: device flags + * + * Integrates omap_hwmod data into Linux platform_device. + * + * Field names beginning with underscores are for the internal use of + * the omap_device code. + * + */ +struct omap_device { + struct platform_device pdev; + struct omap_hwmod **hwmods; + struct omap_device_pm_latency *pm_lats; + u32 dev_wakeup_lat; + u32 _dev_wakeup_lat_limit; + u8 pm_lats_cnt; + s8 pm_lat_level; + u8 hwmods_cnt; + u8 _state; +}; + +/* Device driver interface (call via platform_data fn ptrs) */ + +int omap_device_enable(struct platform_device *pdev); +int omap_device_idle(struct platform_device *pdev); +int omap_device_shutdown(struct platform_device *pdev); + +/* Core code interface */ + +int omap_device_count_resources(struct omap_device *od); +int omap_device_fill_resources(struct omap_device *od, struct resource *res); + +struct omap_device *omap_device_build(const char *pdev_name, int pdev_id, + struct omap_hwmod *oh, void *pdata, + int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt); + +struct omap_device *omap_device_build_ss(const char *pdev_name, int pdev_id, + struct omap_hwmod **oh, int oh_cnt, + void *pdata, int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt); + +int omap_device_register(struct omap_device *od); + +/* OMAP PM interface */ +int omap_device_align_pm_lat(struct platform_device *pdev, + u32 new_wakeup_lat_limit); +struct powerdomain *omap_device_get_pwrdm(struct omap_device *od); + +/* Other */ + +int omap_device_idle_hwmods(struct omap_device *od); +int omap_device_enable_hwmods(struct omap_device *od); + +int omap_device_disable_clocks(struct omap_device *od); +int omap_device_enable_clocks(struct omap_device *od); + + +/* + * Entries should be kept in latency order ascending + * + * deact_lat is the maximum number of microseconds required to complete + * deactivate_func() at the device's slowest OPP. + * + * act_lat is the maximum number of microseconds required to complete + * activate_func() at the device's slowest OPP. + * + * This will result in some suboptimal power management decisions at fast + * OPPs, but avoids having to recompute all device power management decisions + * if the system shifts from a fast OPP to a slow OPP (in order to meet + * latency requirements). + * + * XXX should deactivate_func/activate_func() take platform_device pointers + * rather than omap_device pointers? + */ +struct omap_device_pm_latency { + u32 deactivate_lat; + int (*deactivate_func)(struct omap_device *od); + u32 activate_lat; + int (*activate_func)(struct omap_device *od); +}; + + +#endif + diff --git a/arch/arm/plat-omap/include/mach/omap_hwmod.h b/arch/arm/plat-omap/include/mach/omap_hwmod.h new file mode 100644 index 000000000000..1f79c20e2929 --- /dev/null +++ b/arch/arm/plat-omap/include/mach/omap_hwmod.h @@ -0,0 +1,447 @@ +/* + * omap_hwmod macros, structures + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * Created in collaboration with (alphabetical order): Benoit Cousson, + * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari + * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff + * + * 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. + * + * These headers and macros are used to define OMAP on-chip module + * data and their integration with other OMAP modules and Linux. + * + * References: + * - OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 (SWPU064) + * - OMAP2430 Multimedia Device POP Silicon Revision 2.1 (SWPU090) + * - OMAP34xx Multimedia Device Silicon Revision 3.1 (SWPU108) + * - OMAP4430 Multimedia Device Silicon Revision 1.0 (SWPU140) + * - Open Core Protocol Specification 2.2 + * + * To do: + * - add interconnect error log structures + * - add pinmuxing + * - init_conn_id_bit (CONNID_BIT_VECTOR) + * - implement default hwmod SMS/SDRC flags? + * + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H + +#include <linux/kernel.h> +#include <linux/ioport.h> + +#include <mach/cpu.h> + +struct omap_device; + +/* OCP SYSCONFIG bit shifts/masks */ +#define SYSC_MIDLEMODE_SHIFT 12 +#define SYSC_MIDLEMODE_MASK (0x3 << SYSC_MIDLEMODE_SHIFT) +#define SYSC_CLOCKACTIVITY_SHIFT 8 +#define SYSC_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT) +#define SYSC_SIDLEMODE_SHIFT 3 +#define SYSC_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT) +#define SYSC_ENAWAKEUP_SHIFT 2 +#define SYSC_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT) +#define SYSC_SOFTRESET_SHIFT 1 +#define SYSC_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT) + +/* OCP SYSSTATUS bit shifts/masks */ +#define SYSS_RESETDONE_SHIFT 0 +#define SYSS_RESETDONE_MASK (1 << SYSS_RESETDONE_SHIFT) + +/* Master standby/slave idle mode flags */ +#define HWMOD_IDLEMODE_FORCE (1 << 0) +#define HWMOD_IDLEMODE_NO (1 << 1) +#define HWMOD_IDLEMODE_SMART (1 << 2) + + +/** + * struct omap_hwmod_dma_info - MPU address space handled by the hwmod + * @name: name of the DMA channel (module local name) + * @dma_ch: DMA channel ID + * + * @name should be something short, e.g., "tx" or "rx". It is for use + * by platform_get_resource_byname(). It is defined locally to the + * hwmod. + */ +struct omap_hwmod_dma_info { + const char *name; + u16 dma_ch; +}; + +/** + * struct omap_hwmod_opt_clk - optional clocks used by this hwmod + * @role: "sys", "32k", "tv", etc -- for use in clk_get() + * @clkdev_dev_id: opt clock: clkdev dev_id string + * @clkdev_con_id: opt clock: clkdev con_id string + * @_clk: pointer to the struct clk (filled in at runtime) + * + * The module's interface clock and main functional clock should not + * be added as optional clocks. + */ +struct omap_hwmod_opt_clk { + const char *role; + const char *clkdev_dev_id; + const char *clkdev_con_id; + struct clk *_clk; +}; + + +/* omap_hwmod_omap2_firewall.flags bits */ +#define OMAP_FIREWALL_L3 (1 << 0) +#define OMAP_FIREWALL_L4 (1 << 1) + +/** + * struct omap_hwmod_omap2_firewall - OMAP2/3 device firewall data + * @l3_perm_bit: bit shift for L3_PM_*_PERMISSION_* + * @l4_fw_region: L4 firewall region ID + * @l4_prot_group: L4 protection group ID + * @flags: (see omap_hwmod_omap2_firewall.flags macros above) + */ +struct omap_hwmod_omap2_firewall { + u8 l3_perm_bit; + u8 l4_fw_region; + u8 l4_prot_group; + u8 flags; +}; + + +/* + * omap_hwmod_addr_space.flags bits + * + * ADDR_MAP_ON_INIT: Map this address space during omap_hwmod init. + * ADDR_TYPE_RT: Address space contains module register target data. + */ +#define ADDR_MAP_ON_INIT (1 << 0) +#define ADDR_TYPE_RT (1 << 1) + +/** + * struct omap_hwmod_addr_space - MPU address space handled by the hwmod + * @pa_start: starting physical address + * @pa_end: ending physical address + * @flags: (see omap_hwmod_addr_space.flags macros above) + * + * Address space doesn't necessarily follow physical interconnect + * structure. GPMC is one example. + */ +struct omap_hwmod_addr_space { + u32 pa_start; + u32 pa_end; + u8 flags; +}; + + +/* + * omap_hwmod_ocp_if.user bits: these indicate the initiators that use this + * interface to interact with the hwmod. Used to add sleep dependencies + * when the module is enabled or disabled. + */ +#define OCP_USER_MPU (1 << 0) +#define OCP_USER_SDMA (1 << 1) + +/* omap_hwmod_ocp_if.flags bits */ +#define OCPIF_HAS_IDLEST (1 << 0) +#define OCPIF_SWSUP_IDLE (1 << 1) +#define OCPIF_CAN_BURST (1 << 2) + +/** + * struct omap_hwmod_ocp_if - OCP interface data + * @master: struct omap_hwmod that initiates OCP transactions on this link + * @slave: struct omap_hwmod that responds to OCP transactions on this link + * @addr: address space associated with this link + * @clkdev_dev_id: interface clock: clkdev dev_id string + * @clkdev_con_id: interface clock: clkdev con_id string + * @_clk: pointer to the interface struct clk (filled in at runtime) + * @fw: interface firewall data + * @addr_cnt: ARRAY_SIZE(@addr) + * @width: OCP data width + * @thread_cnt: number of threads + * @max_burst_len: maximum burst length in @width sized words (0 if unlimited) + * @user: initiators using this interface (see OCP_USER_* macros above) + * @flags: OCP interface flags (see OCPIF_* macros above) + * + * It may also be useful to add a tag_cnt field for OCP2.x devices. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + */ +struct omap_hwmod_ocp_if { + struct omap_hwmod *master; + struct omap_hwmod *slave; + struct omap_hwmod_addr_space *addr; + const char *clkdev_dev_id; + const char *clkdev_con_id; + struct clk *_clk; + union { + struct omap_hwmod_omap2_firewall omap2; + } fw; + u8 addr_cnt; + u8 width; + u8 thread_cnt; + u8 max_burst_len; + u8 user; + u8 flags; +}; + + +/* Macros for use in struct omap_hwmod_sysconfig */ + +/* Flags for use in omap_hwmod_sysconfig.idlemodes */ +#define MASTER_STANDBY_SHIFT 2 +#define SLAVE_IDLE_SHIFT 0 +#define SIDLE_FORCE (HWMOD_IDLEMODE_FORCE << SLAVE_IDLE_SHIFT) +#define SIDLE_NO (HWMOD_IDLEMODE_NO << SLAVE_IDLE_SHIFT) +#define SIDLE_SMART (HWMOD_IDLEMODE_SMART << SLAVE_IDLE_SHIFT) +#define MSTANDBY_FORCE (HWMOD_IDLEMODE_FORCE << MASTER_STANDBY_SHIFT) +#define MSTANDBY_NO (HWMOD_IDLEMODE_NO << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART (HWMOD_IDLEMODE_SMART << MASTER_STANDBY_SHIFT) + +/* omap_hwmod_sysconfig.sysc_flags capability flags */ +#define SYSC_HAS_AUTOIDLE (1 << 0) +#define SYSC_HAS_SOFTRESET (1 << 1) +#define SYSC_HAS_ENAWAKEUP (1 << 2) +#define SYSC_HAS_EMUFREE (1 << 3) +#define SYSC_HAS_CLOCKACTIVITY (1 << 4) +#define SYSC_HAS_SIDLEMODE (1 << 5) +#define SYSC_HAS_MIDLEMODE (1 << 6) +#define SYSS_MISSING (1 << 7) + +/* omap_hwmod_sysconfig.clockact flags */ +#define CLOCKACT_TEST_BOTH 0x0 +#define CLOCKACT_TEST_MAIN 0x1 +#define CLOCKACT_TEST_ICLK 0x2 +#define CLOCKACT_TEST_NONE 0x3 + +/** + * struct omap_hwmod_sysconfig - hwmod OCP_SYSCONFIG/OCP_SYSSTATUS data + * @rev_offs: IP block revision register offset (from module base addr) + * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr) + * @syss_offs: OCP_SYSSTATUS register offset (from module base addr) + * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART} + * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported + * @clockact: the default value of the module CLOCKACTIVITY bits + * + * @clockact describes to the module which clocks are likely to be + * disabled when the PRCM issues its idle request to the module. Some + * modules have separate clockdomains for the interface clock and main + * functional clock, and can check whether they should acknowledge the + * idle request based on the internal module functionality that has + * been associated with the clocks marked in @clockact. This field is + * only used if HWMOD_SET_DEFAULT_CLOCKACT is set (see below) + * + */ +struct omap_hwmod_sysconfig { + u16 rev_offs; + u16 sysc_offs; + u16 syss_offs; + u8 idlemodes; + u8 sysc_flags; + u8 clockact; +}; + +/** + * struct omap_hwmod_omap2_prcm - OMAP2/3-specific PRCM data + * @module_offs: PRCM submodule offset from the start of the PRM/CM + * @prcm_reg_id: PRCM register ID (e.g., 3 for CM_AUTOIDLE3) + * @module_bit: register bit shift for AUTOIDLE, WKST, WKEN, GRPSEL regs + * @idlest_reg_id: IDLEST register ID (e.g., 3 for CM_IDLEST3) + * @idlest_idle_bit: register bit shift for CM_IDLEST slave idle bit + * @idlest_stdby_bit: register bit shift for CM_IDLEST master standby bit + * + * @prcm_reg_id and @module_bit are specific to the AUTOIDLE, WKST, + * WKEN, GRPSEL registers. In an ideal world, no extra information + * would be needed for IDLEST information, but alas, there are some + * exceptions, so @idlest_reg_id, @idlest_idle_bit, @idlest_stdby_bit + * are needed for the IDLEST registers (c.f. 2430 I2CHS, 3430 USBHOST) + */ +struct omap_hwmod_omap2_prcm { + s16 module_offs; + u8 prcm_reg_id; + u8 module_bit; + u8 idlest_reg_id; + u8 idlest_idle_bit; + u8 idlest_stdby_bit; +}; + + +/** + * struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data + * @module_offs: PRCM submodule offset from the start of the PRM/CM1/CM2 + * @device_offs: device register offset from @module_offs + * @submodule_wkdep_bit: bit shift of the WKDEP range + */ +struct omap_hwmod_omap4_prcm { + u32 module_offs; + u16 device_offs; + u8 submodule_wkdep_bit; +}; + + +/* + * omap_hwmod.flags definitions + * + * HWMOD_SWSUP_SIDLE: omap_hwmod code should manually bring module in and out + * of idle, rather than relying on module smart-idle + * HWMOD_SWSUP_MSTDBY: omap_hwmod code should manually bring module in and out + * of standby, rather than relying on module smart-standby + * HWMOD_INIT_NO_RESET: don't reset this module at boot - important for + * SDRAM controller, etc. + * HWMOD_INIT_NO_IDLE: don't idle this module at boot - important for SDRAM + * controller, etc. + * HWMOD_SET_DEFAULT_CLOCKACT: program CLOCKACTIVITY bits at startup + */ +#define HWMOD_SWSUP_SIDLE (1 << 0) +#define HWMOD_SWSUP_MSTANDBY (1 << 1) +#define HWMOD_INIT_NO_RESET (1 << 2) +#define HWMOD_INIT_NO_IDLE (1 << 3) +#define HWMOD_SET_DEFAULT_CLOCKACT (1 << 4) + +/* + * omap_hwmod._int_flags definitions + * These are for internal use only and are managed by the omap_hwmod code. + * + * _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module + * _HWMOD_WAKEUP_ENABLED: set when the omap_hwmod code has enabled ENAWAKEUP + * _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached + */ +#define _HWMOD_NO_MPU_PORT (1 << 0) +#define _HWMOD_WAKEUP_ENABLED (1 << 1) +#define _HWMOD_SYSCONFIG_LOADED (1 << 2) + +/* + * omap_hwmod._state definitions + * + * INITIALIZED: reset (optionally), initialized, enabled, disabled + * (optionally) + * + * + */ +#define _HWMOD_STATE_UNKNOWN 0 +#define _HWMOD_STATE_REGISTERED 1 +#define _HWMOD_STATE_CLKS_INITED 2 +#define _HWMOD_STATE_INITIALIZED 3 +#define _HWMOD_STATE_ENABLED 4 +#define _HWMOD_STATE_IDLE 5 +#define _HWMOD_STATE_DISABLED 6 + +/** + * struct omap_hwmod - integration data for OMAP hardware "modules" (IP blocks) + * @name: name of the hwmod + * @od: struct omap_device currently associated with this hwmod (internal use) + * @mpu_irqs: ptr to an array of MPU IRQs (see also mpu_irqs_cnt) + * @sdma_chs: ptr to an array of SDMA channel IDs (see also sdma_chs_cnt) + * @prcm: PRCM data pertaining to this hwmod + * @clkdev_dev_id: main clock: clkdev dev_id string + * @clkdev_con_id: main clock: clkdev con_id string + * @_clk: pointer to the main struct clk (filled in at runtime) + * @opt_clks: other device clocks that drivers can request (0..*) + * @masters: ptr to array of OCP ifs that this hwmod can initiate on + * @slaves: ptr to array of OCP ifs that this hwmod can respond on + * @sysconfig: device SYSCONFIG/SYSSTATUS register data + * @dev_attr: arbitrary device attributes that can be passed to the driver + * @_sysc_cache: internal-use hwmod flags + * @_rt_va: cached register target start address (internal use) + * @_mpu_port_index: cached MPU register target slave ID (internal use) + * @msuspendmux_reg_id: CONTROL_MSUSPENDMUX register ID (1-6) + * @msuspendmux_shift: CONTROL_MSUSPENDMUX register bit shift + * @mpu_irqs_cnt: number of @mpu_irqs + * @sdma_chs_cnt: number of @sdma_chs + * @opt_clks_cnt: number of @opt_clks + * @master_cnt: number of @master entries + * @slaves_cnt: number of @slave entries + * @response_lat: device OCP response latency (in interface clock cycles) + * @_int_flags: internal-use hwmod flags + * @_state: internal-use hwmod state + * @flags: hwmod flags (documented below) + * @omap_chip: OMAP chips this hwmod is present on + * @node: list node for hwmod list (internal use) + * + * @clkdev_dev_id, @clkdev_con_id, and @clk all refer to this module's "main + * clock," which for our purposes is defined as "the functional clock needed + * for register accesses to complete." Modules may not have a main clock if + * the interface clock also serves as a main clock. + * + * Parameter names beginning with an underscore are managed internally by + * the omap_hwmod code and should not be set during initialization. + */ +struct omap_hwmod { + const char *name; + struct omap_device *od; + u8 *mpu_irqs; + struct omap_hwmod_dma_info *sdma_chs; + union { + struct omap_hwmod_omap2_prcm omap2; + struct omap_hwmod_omap4_prcm omap4; + } prcm; + const char *clkdev_dev_id; + const char *clkdev_con_id; + struct clk *_clk; + struct omap_hwmod_opt_clk *opt_clks; + struct omap_hwmod_ocp_if **masters; /* connect to *_IA */ + struct omap_hwmod_ocp_if **slaves; /* connect to *_TA */ + struct omap_hwmod_sysconfig *sysconfig; + void *dev_attr; + u32 _sysc_cache; + void __iomem *_rt_va; + struct list_head node; + u16 flags; + u8 _mpu_port_index; + u8 msuspendmux_reg_id; + u8 msuspendmux_shift; + u8 response_lat; + u8 mpu_irqs_cnt; + u8 sdma_chs_cnt; + u8 opt_clks_cnt; + u8 masters_cnt; + u8 slaves_cnt; + u8 hwmods_cnt; + u8 _int_flags; + u8 _state; + const struct omap_chip_id omap_chip; +}; + +int omap_hwmod_init(struct omap_hwmod **ohs); +int omap_hwmod_register(struct omap_hwmod *oh); +int omap_hwmod_unregister(struct omap_hwmod *oh); +struct omap_hwmod *omap_hwmod_lookup(const char *name); +int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh)); +int omap_hwmod_late_init(void); + +int omap_hwmod_enable(struct omap_hwmod *oh); +int omap_hwmod_idle(struct omap_hwmod *oh); +int omap_hwmod_shutdown(struct omap_hwmod *oh); + +int omap_hwmod_enable_clocks(struct omap_hwmod *oh); +int omap_hwmod_disable_clocks(struct omap_hwmod *oh); + +int omap_hwmod_reset(struct omap_hwmod *oh); +void omap_hwmod_ocp_barrier(struct omap_hwmod *oh); + +void omap_hwmod_writel(u32 v, struct omap_hwmod *oh, u16 reg_offs); +u32 omap_hwmod_readl(struct omap_hwmod *oh, u16 reg_offs); + +int omap_hwmod_count_resources(struct omap_hwmod *oh); +int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res); + +struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh); + +int omap_hwmod_add_initiator_dep(struct omap_hwmod *oh, + struct omap_hwmod *init_oh); +int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh, + struct omap_hwmod *init_oh); + +int omap_hwmod_set_clockact_both(struct omap_hwmod *oh); +int omap_hwmod_set_clockact_main(struct omap_hwmod *oh); +int omap_hwmod_set_clockact_iclk(struct omap_hwmod *oh); +int omap_hwmod_set_clockact_none(struct omap_hwmod *oh); + +int omap_hwmod_enable_wakeup(struct omap_hwmod *oh); +int omap_hwmod_disable_wakeup(struct omap_hwmod *oh); + +#endif diff --git a/arch/arm/plat-omap/include/mach/powerdomain.h b/arch/arm/plat-omap/include/mach/powerdomain.h index 69c9e675d8ee..6271d8556a40 100644 --- a/arch/arm/plat-omap/include/mach/powerdomain.h +++ b/arch/arm/plat-omap/include/mach/powerdomain.h @@ -117,6 +117,13 @@ struct powerdomain { struct list_head node; + int state; + unsigned state_counter[4]; + +#ifdef CONFIG_PM_DEBUG + s64 timer; + s64 state_timer[4]; +#endif }; @@ -126,7 +133,8 @@ int pwrdm_register(struct powerdomain *pwrdm); int pwrdm_unregister(struct powerdomain *pwrdm); struct powerdomain *pwrdm_lookup(const char *name); -int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm)); +int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user), + void *user); int pwrdm_add_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm); int pwrdm_del_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm); @@ -164,4 +172,9 @@ bool pwrdm_has_hdwr_sar(struct powerdomain *pwrdm); int pwrdm_wait_transition(struct powerdomain *pwrdm); +int pwrdm_state_switch(struct powerdomain *pwrdm); +int pwrdm_clkdm_state_switch(struct clockdomain *clkdm); +int pwrdm_pre_transition(void); +int pwrdm_post_transition(void); + #endif diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index 0be18e4ff182..1c09c78a48f2 100644 --- a/arch/arm/plat-omap/include/mach/sdrc.h +++ b/arch/arm/plat-omap/include/mach/sdrc.h @@ -21,19 +21,28 @@ /* SDRC register offsets - read/write with sdrc_{read,write}_reg() */ #define SDRC_SYSCONFIG 0x010 +#define SDRC_CS_CFG 0x040 +#define SDRC_SHARING 0x044 +#define SDRC_ERR_TYPE 0x04C #define SDRC_DLLA_CTRL 0x060 #define SDRC_DLLA_STATUS 0x064 #define SDRC_DLLB_CTRL 0x068 #define SDRC_DLLB_STATUS 0x06C #define SDRC_POWER 0x070 +#define SDRC_MCFG_0 0x080 #define SDRC_MR_0 0x084 +#define SDRC_EMR2_0 0x08c #define SDRC_ACTIM_CTRL_A_0 0x09c #define SDRC_ACTIM_CTRL_B_0 0x0a0 #define SDRC_RFR_CTRL_0 0x0a4 +#define SDRC_MANUAL_0 0x0a8 +#define SDRC_MCFG_1 0x0B0 #define SDRC_MR_1 0x0B4 +#define SDRC_EMR2_1 0x0BC #define SDRC_ACTIM_CTRL_A_1 0x0C4 #define SDRC_ACTIM_CTRL_B_1 0x0C8 #define SDRC_RFR_CTRL_1 0x0D4 +#define SDRC_MANUAL_1 0x0D8 /* * These values represent the number of memory clock cycles between @@ -71,11 +80,11 @@ */ #define OMAP242X_SMS_REGADDR(reg) \ - (void __iomem *)IO_ADDRESS(OMAP2420_SMS_BASE + reg) + (void __iomem *)OMAP2_IO_ADDRESS(OMAP2420_SMS_BASE + reg) #define OMAP243X_SMS_REGADDR(reg) \ - (void __iomem *)IO_ADDRESS(OMAP243X_SMS_BASE + reg) + (void __iomem *)OMAP2_IO_ADDRESS(OMAP243X_SMS_BASE + reg) #define OMAP343X_SMS_REGADDR(reg) \ - (void __iomem *)IO_ADDRESS(OMAP343X_SMS_BASE + reg) + (void __iomem *)OMAP2_IO_ADDRESS(OMAP343X_SMS_BASE + reg) /* SMS register offsets - read/write with sms_{read,write}_reg() */ diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h index def0529c75eb..e249186d26e2 100644 --- a/arch/arm/plat-omap/include/mach/serial.h +++ b/arch/arm/plat-omap/include/mach/serial.h @@ -13,6 +13,8 @@ #ifndef __ASM_ARCH_SERIAL_H #define __ASM_ARCH_SERIAL_H +#include <linux/init.h> + #if defined(CONFIG_ARCH_OMAP1) /* OMAP1 serial ports */ #define OMAP_UART1_BASE 0xfffb0000 @@ -53,6 +55,7 @@ }) #ifndef __ASSEMBLER__ +extern void __init omap_serial_early_init(void); extern void omap_serial_init(void); extern int omap_uart_can_sleep(void); extern void omap_uart_check_wakeup(void); diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c index 9b42d72d96cf..b6defa23e77e 100644 --- a/arch/arm/plat-omap/io.c +++ b/arch/arm/plat-omap/io.c @@ -30,8 +30,8 @@ void __iomem *omap_ioremap(unsigned long p, size_t size, unsigned int type) { #ifdef CONFIG_ARCH_OMAP1 if (cpu_class_is_omap1()) { - if (BETWEEN(p, IO_PHYS, IO_SIZE)) - return XLATE(p, IO_PHYS, IO_VIRT); + if (BETWEEN(p, OMAP1_IO_PHYS, OMAP1_IO_SIZE)) + return XLATE(p, OMAP1_IO_PHYS, OMAP1_IO_VIRT); } if (cpu_is_omap730()) { if (BETWEEN(p, OMAP730_DSP_BASE, OMAP730_DSP_SIZE)) @@ -132,3 +132,61 @@ void omap_iounmap(volatile void __iomem *addr) __iounmap(addr); } EXPORT_SYMBOL(omap_iounmap); + +/* + * NOTE: Please use ioremap + __raw_read/write where possible instead of these + */ + +u8 omap_readb(u32 pa) +{ + if (cpu_class_is_omap1()) + return __raw_readb(OMAP1_IO_ADDRESS(pa)); + else + return __raw_readb(OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readb); + +u16 omap_readw(u32 pa) +{ + if (cpu_class_is_omap1()) + return __raw_readw(OMAP1_IO_ADDRESS(pa)); + else + return __raw_readw(OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readw); + +u32 omap_readl(u32 pa) +{ + if (cpu_class_is_omap1()) + return __raw_readl(OMAP1_IO_ADDRESS(pa)); + else + return __raw_readl(OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readl); + +void omap_writeb(u8 v, u32 pa) +{ + if (cpu_class_is_omap1()) + __raw_writeb(v, OMAP1_IO_ADDRESS(pa)); + else + __raw_writeb(v, OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writeb); + +void omap_writew(u16 v, u32 pa) +{ + if (cpu_class_is_omap1()) + __raw_writew(v, OMAP1_IO_ADDRESS(pa)); + else + __raw_writew(v, OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writew); + +void omap_writel(u32 v, u32 pa) +{ + if (cpu_class_is_omap1()) + __raw_writel(v, OMAP1_IO_ADDRESS(pa)); + else + __raw_writel(v, OMAP2_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writel); diff --git a/arch/arm/plat-omap/iommu-debug.c b/arch/arm/plat-omap/iommu-debug.c new file mode 100644 index 000000000000..c799b3b0d709 --- /dev/null +++ b/arch/arm/plat-omap/iommu-debug.c @@ -0,0 +1,415 @@ +/* + * omap iommu: debugfs interface + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com> + * + * 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. + */ + +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/debugfs.h> + +#include <mach/iommu.h> +#include <mach/iovmm.h> + +#include "iopgtable.h" + +#define MAXCOLUMN 100 /* for short messages */ + +static DEFINE_MUTEX(iommu_debug_lock); + +static struct dentry *iommu_debug_root; + +static ssize_t debug_read_ver(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + u32 ver = iommu_arch_version(); + char buf[MAXCOLUMN], *p = buf; + + p += sprintf(p, "H/W version: %d.%d\n", (ver >> 4) & 0xf , ver & 0xf); + + return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); +} + +static ssize_t debug_read_regs(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + char *p, *buf; + ssize_t bytes; + + buf = kmalloc(count, GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + mutex_lock(&iommu_debug_lock); + + bytes = iommu_dump_ctx(obj, p, count); + bytes = simple_read_from_buffer(userbuf, count, ppos, buf, bytes); + + mutex_unlock(&iommu_debug_lock); + kfree(buf); + + return bytes; +} + +static ssize_t debug_read_tlb(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + char *p, *buf; + ssize_t bytes, rest; + + buf = kmalloc(count, GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + mutex_lock(&iommu_debug_lock); + + p += sprintf(p, "%8s %8s\n", "cam:", "ram:"); + p += sprintf(p, "-----------------------------------------\n"); + rest = count - (p - buf); + p += dump_tlb_entries(obj, p, rest); + + bytes = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); + + mutex_unlock(&iommu_debug_lock); + kfree(buf); + + return bytes; +} + +static ssize_t debug_write_pagetable(struct file *file, + const char __user *userbuf, size_t count, loff_t *ppos) +{ + struct iotlb_entry e; + struct cr_regs cr; + int err; + struct iommu *obj = file->private_data; + char buf[MAXCOLUMN], *p = buf; + + count = min(count, sizeof(buf)); + + mutex_lock(&iommu_debug_lock); + if (copy_from_user(p, userbuf, count)) { + mutex_unlock(&iommu_debug_lock); + return -EFAULT; + } + + sscanf(p, "%x %x", &cr.cam, &cr.ram); + if (!cr.cam || !cr.ram) { + mutex_unlock(&iommu_debug_lock); + return -EINVAL; + } + + iotlb_cr_to_e(&cr, &e); + err = iopgtable_store_entry(obj, &e); + if (err) + dev_err(obj->dev, "%s: fail to store cr\n", __func__); + + mutex_unlock(&iommu_debug_lock); + return count; +} + +#define dump_ioptable_entry_one(lv, da, val) \ + ({ \ + int __err = 0; \ + ssize_t bytes; \ + const int maxcol = 22; \ + const char *str = "%d: %08x %08x\n"; \ + bytes = snprintf(p, maxcol, str, lv, da, val); \ + p += bytes; \ + len -= bytes; \ + if (len < maxcol) \ + __err = -ENOMEM; \ + __err; \ + }) + +static ssize_t dump_ioptable(struct iommu *obj, char *buf, ssize_t len) +{ + int i; + u32 *iopgd; + char *p = buf; + + spin_lock(&obj->page_table_lock); + + iopgd = iopgd_offset(obj, 0); + for (i = 0; i < PTRS_PER_IOPGD; i++, iopgd++) { + int j, err; + u32 *iopte; + u32 da; + + if (!*iopgd) + continue; + + if (!(*iopgd & IOPGD_TABLE)) { + da = i << IOPGD_SHIFT; + + err = dump_ioptable_entry_one(1, da, *iopgd); + if (err) + goto out; + continue; + } + + iopte = iopte_offset(iopgd, 0); + + for (j = 0; j < PTRS_PER_IOPTE; j++, iopte++) { + if (!*iopte) + continue; + + da = (i << IOPGD_SHIFT) + (j << IOPTE_SHIFT); + err = dump_ioptable_entry_one(2, da, *iopgd); + if (err) + goto out; + } + } +out: + spin_unlock(&obj->page_table_lock); + + return p - buf; +} + +static ssize_t debug_read_pagetable(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + char *p, *buf; + size_t bytes; + + buf = (char *)__get_free_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + p += sprintf(p, "L: %8s %8s\n", "da:", "pa:"); + p += sprintf(p, "-----------------------------------------\n"); + + mutex_lock(&iommu_debug_lock); + + bytes = PAGE_SIZE - (p - buf); + p += dump_ioptable(obj, p, bytes); + + bytes = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); + + mutex_unlock(&iommu_debug_lock); + free_page((unsigned long)buf); + + return bytes; +} + +static ssize_t debug_read_mmap(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + char *p, *buf; + struct iovm_struct *tmp; + int uninitialized_var(i); + ssize_t bytes; + + buf = (char *)__get_free_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + p += sprintf(p, "%-3s %-8s %-8s %6s %8s\n", + "No", "start", "end", "size", "flags"); + p += sprintf(p, "-------------------------------------------------\n"); + + mutex_lock(&iommu_debug_lock); + + list_for_each_entry(tmp, &obj->mmap, list) { + size_t len; + const char *str = "%3d %08x-%08x %6x %8x\n"; + const int maxcol = 39; + + len = tmp->da_end - tmp->da_start; + p += snprintf(p, maxcol, str, + i, tmp->da_start, tmp->da_end, len, tmp->flags); + + if (PAGE_SIZE - (p - buf) < maxcol) + break; + i++; + } + + bytes = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); + + mutex_unlock(&iommu_debug_lock); + free_page((unsigned long)buf); + + return bytes; +} + +static ssize_t debug_read_mem(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + char *p, *buf; + struct iovm_struct *area; + ssize_t bytes; + + count = min_t(ssize_t, count, PAGE_SIZE); + + buf = (char *)__get_free_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + mutex_lock(&iommu_debug_lock); + + area = find_iovm_area(obj, (u32)ppos); + if (IS_ERR(area)) { + bytes = -EINVAL; + goto err_out; + } + memcpy(p, area->va, count); + p += count; + + bytes = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); +err_out: + mutex_unlock(&iommu_debug_lock); + free_page((unsigned long)buf); + + return bytes; +} + +static ssize_t debug_write_mem(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct iommu *obj = file->private_data; + struct iovm_struct *area; + char *p, *buf; + + count = min_t(size_t, count, PAGE_SIZE); + + buf = (char *)__get_free_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; + p = buf; + + mutex_lock(&iommu_debug_lock); + + if (copy_from_user(p, userbuf, count)) { + count = -EFAULT; + goto err_out; + } + + area = find_iovm_area(obj, (u32)ppos); + if (IS_ERR(area)) { + count = -EINVAL; + goto err_out; + } + memcpy(area->va, p, count); +err_out: + mutex_unlock(&iommu_debug_lock); + free_page((unsigned long)buf); + + return count; +} + +static int debug_open_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +#define DEBUG_FOPS(name) \ + static const struct file_operations debug_##name##_fops = { \ + .open = debug_open_generic, \ + .read = debug_read_##name, \ + .write = debug_write_##name, \ + }; + +#define DEBUG_FOPS_RO(name) \ + static const struct file_operations debug_##name##_fops = { \ + .open = debug_open_generic, \ + .read = debug_read_##name, \ + }; + +DEBUG_FOPS_RO(ver); +DEBUG_FOPS_RO(regs); +DEBUG_FOPS_RO(tlb); +DEBUG_FOPS(pagetable); +DEBUG_FOPS_RO(mmap); +DEBUG_FOPS(mem); + +#define __DEBUG_ADD_FILE(attr, mode) \ + { \ + struct dentry *dent; \ + dent = debugfs_create_file(#attr, mode, parent, \ + obj, &debug_##attr##_fops); \ + if (!dent) \ + return -ENOMEM; \ + } + +#define DEBUG_ADD_FILE(name) __DEBUG_ADD_FILE(name, 600) +#define DEBUG_ADD_FILE_RO(name) __DEBUG_ADD_FILE(name, 400) + +static int iommu_debug_register(struct device *dev, void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iommu *obj = platform_get_drvdata(pdev); + struct dentry *d, *parent; + + if (!obj || !obj->dev) + return -EINVAL; + + d = debugfs_create_dir(obj->name, iommu_debug_root); + if (!d) + return -ENOMEM; + parent = d; + + d = debugfs_create_u8("nr_tlb_entries", 400, parent, + (u8 *)&obj->nr_tlb_entries); + if (!d) + return -ENOMEM; + + DEBUG_ADD_FILE_RO(ver); + DEBUG_ADD_FILE_RO(regs); + DEBUG_ADD_FILE_RO(tlb); + DEBUG_ADD_FILE(pagetable); + DEBUG_ADD_FILE_RO(mmap); + DEBUG_ADD_FILE(mem); + + return 0; +} + +static int __init iommu_debug_init(void) +{ + struct dentry *d; + int err; + + d = debugfs_create_dir("iommu", NULL); + if (!d) + return -ENOMEM; + iommu_debug_root = d; + + err = foreach_iommu_device(d, iommu_debug_register); + if (err) + goto err_out; + return 0; + +err_out: + debugfs_remove_recursive(iommu_debug_root); + return err; +} +module_init(iommu_debug_init) + +static void __exit iommu_debugfs_exit(void) +{ + debugfs_remove_recursive(iommu_debug_root); +} +module_exit(iommu_debugfs_exit) + +MODULE_DESCRIPTION("omap iommu: debugfs interface"); +MODULE_AUTHOR("Hiroshi DOYU <Hiroshi.DOYU@nokia.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index 4a0301399013..4b6012707307 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -351,16 +351,14 @@ EXPORT_SYMBOL_GPL(flush_iotlb_all); #if defined(CONFIG_OMAP_IOMMU_DEBUG_MODULE) -ssize_t iommu_dump_ctx(struct iommu *obj, char *buf) +ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t bytes) { - ssize_t bytes; - if (!obj || !buf) return -EINVAL; clk_enable(obj->clk); - bytes = arch_iommu->dump_ctx(obj, buf); + bytes = arch_iommu->dump_ctx(obj, buf, bytes); clk_disable(obj->clk); @@ -368,7 +366,7 @@ ssize_t iommu_dump_ctx(struct iommu *obj, char *buf) } EXPORT_SYMBOL_GPL(iommu_dump_ctx); -static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs) +static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs, int num) { int i; struct iotlb_lock saved, l; @@ -379,7 +377,7 @@ static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs) iotlb_lock_get(obj, &saved); memcpy(&l, &saved, sizeof(saved)); - for (i = 0; i < obj->nr_tlb_entries; i++) { + for (i = 0; i < num; i++) { struct cr_regs tmp; iotlb_lock_get(obj, &l); @@ -402,18 +400,21 @@ static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs) * @obj: target iommu * @buf: output buffer **/ -size_t dump_tlb_entries(struct iommu *obj, char *buf) +size_t dump_tlb_entries(struct iommu *obj, char *buf, ssize_t bytes) { - int i, n; + int i, num; struct cr_regs *cr; char *p = buf; - cr = kcalloc(obj->nr_tlb_entries, sizeof(*cr), GFP_KERNEL); + num = bytes / sizeof(*cr); + num = min(obj->nr_tlb_entries, num); + + cr = kcalloc(num, sizeof(*cr), GFP_KERNEL); if (!cr) return 0; - n = __dump_tlb_entries(obj, cr); - for (i = 0; i < n; i++) + num = __dump_tlb_entries(obj, cr, num); + for (i = 0; i < num; i++) p += iotlb_dump_cr(obj, cr + i, p); kfree(cr); diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c index 2fce2c151a95..6fc52fcbdc03 100644 --- a/arch/arm/plat-omap/iovmm.c +++ b/arch/arm/plat-omap/iovmm.c @@ -199,7 +199,7 @@ static void *vmap_sg(const struct sg_table *sgt) va += bytes; } - flush_cache_vmap(new->addr, total); + flush_cache_vmap(new->addr, new->addr + total); return new->addr; err_out: diff --git a/arch/arm/plat-omap/omap-pm-noop.c b/arch/arm/plat-omap/omap-pm-noop.c new file mode 100644 index 000000000000..e98f0a2a6c26 --- /dev/null +++ b/arch/arm/plat-omap/omap-pm-noop.c @@ -0,0 +1,296 @@ +/* + * omap-pm-noop.c - OMAP power management interface - dummy version + * + * This code implements the OMAP power management interface to + * drivers, CPUIdle, CPUFreq, and DSP Bridge. It is strictly for + * debug/demonstration use, as it does nothing but printk() whenever a + * function is called (when DEBUG is defined, below) + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2009 Nokia Corporation + * Paul Walmsley + * + * Interface developed by (in alphabetical order): + * Karthik Dasu, Tony Lindgren, Rajendra Nayak, Sakari Poussa, Veeramanikandan + * Raju, Anand Sawant, Igor Stoppa, Paul Walmsley, Richard Woodruff + */ + +#undef DEBUG + +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <linux/device.h> + +/* Interface documentation is in mach/omap-pm.h */ +#include <mach/omap-pm.h> + +#include <mach/powerdomain.h> + +struct omap_opp *dsp_opps; +struct omap_opp *mpu_opps; +struct omap_opp *l3_opps; + +/* + * Device-driver-originated constraints (via board-*.c files) + */ + +void omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t) +{ + if (!dev || t < -1) { + WARN_ON(1); + return; + }; + + if (t == -1) + pr_debug("OMAP PM: remove max MPU wakeup latency constraint: " + "dev %s\n", dev_name(dev)); + else + pr_debug("OMAP PM: add max MPU wakeup latency constraint: " + "dev %s, t = %ld usec\n", dev_name(dev), t); + + /* + * For current Linux, this needs to map the MPU to a + * powerdomain, then go through the list of current max lat + * constraints on the MPU and find the smallest. If + * the latency constraint has changed, the code should + * recompute the state to enter for the next powerdomain + * state. + * + * TI CDP code can call constraint_set here. + */ +} + +void omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r) +{ + if (!dev || (agent_id != OCP_INITIATOR_AGENT && + agent_id != OCP_TARGET_AGENT)) { + WARN_ON(1); + return; + }; + + if (r == 0) + pr_debug("OMAP PM: remove min bus tput constraint: " + "dev %s for agent_id %d\n", dev_name(dev), agent_id); + else + pr_debug("OMAP PM: add min bus tput constraint: " + "dev %s for agent_id %d: rate %ld KiB\n", + dev_name(dev), agent_id, r); + + /* + * This code should model the interconnect and compute the + * required clock frequency, convert that to a VDD2 OPP ID, then + * set the VDD2 OPP appropriately. + * + * TI CDP code can call constraint_set here on the VDD2 OPP. + */ +} + +void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t) +{ + if (!dev || t < -1) { + WARN_ON(1); + return; + }; + + if (t == -1) + pr_debug("OMAP PM: remove max device latency constraint: " + "dev %s\n", dev_name(dev)); + else + pr_debug("OMAP PM: add max device latency constraint: " + "dev %s, t = %ld usec\n", dev_name(dev), t); + + /* + * For current Linux, this needs to map the device to a + * powerdomain, then go through the list of current max lat + * constraints on that powerdomain and find the smallest. If + * the latency constraint has changed, the code should + * recompute the state to enter for the next powerdomain + * state. Conceivably, this code should also determine + * whether to actually disable the device clocks or not, + * depending on how long it takes to re-enable the clocks. + * + * TI CDP code can call constraint_set here. + */ +} + +void omap_pm_set_max_sdma_lat(struct device *dev, long t) +{ + if (!dev || t < -1) { + WARN_ON(1); + return; + }; + + if (t == -1) + pr_debug("OMAP PM: remove max DMA latency constraint: " + "dev %s\n", dev_name(dev)); + else + pr_debug("OMAP PM: add max DMA latency constraint: " + "dev %s, t = %ld usec\n", dev_name(dev), t); + + /* + * For current Linux PM QOS params, this code should scan the + * list of maximum CPU and DMA latencies and select the + * smallest, then set cpu_dma_latency pm_qos_param + * accordingly. + * + * For future Linux PM QOS params, with separate CPU and DMA + * latency params, this code should just set the dma_latency param. + * + * TI CDP code can call constraint_set here. + */ + +} + + +/* + * DSP Bridge-specific constraints + */ + +const struct omap_opp *omap_pm_dsp_get_opp_table(void) +{ + pr_debug("OMAP PM: DSP request for OPP table\n"); + + /* + * Return DSP frequency table here: The final item in the + * array should have .rate = .opp_id = 0. + */ + + return NULL; +} + +void omap_pm_dsp_set_min_opp(u8 opp_id) +{ + if (opp_id == 0) { + WARN_ON(1); + return; + } + + pr_debug("OMAP PM: DSP requests minimum VDD1 OPP to be %d\n", opp_id); + + /* + * + * For l-o dev tree, our VDD1 clk is keyed on OPP ID, so we + * can just test to see which is higher, the CPU's desired OPP + * ID or the DSP's desired OPP ID, and use whichever is + * highest. + * + * In CDP12.14+, the VDD1 OPP custom clock that controls the DSP + * rate is keyed on MPU speed, not the OPP ID. So we need to + * map the OPP ID to the MPU speed for use with clk_set_rate() + * if it is higher than the current OPP clock rate. + * + */ +} + + +u8 omap_pm_dsp_get_opp(void) +{ + pr_debug("OMAP PM: DSP requests current DSP OPP ID\n"); + + /* + * For l-o dev tree, call clk_get_rate() on VDD1 OPP clock + * + * CDP12.14+: + * Call clk_get_rate() on the OPP custom clock, map that to an + * OPP ID using the tables defined in board-*.c/chip-*.c files. + */ + + return 0; +} + +/* + * CPUFreq-originated constraint + * + * In the future, this should be handled by custom OPP clocktype + * functions. + */ + +struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void) +{ + pr_debug("OMAP PM: CPUFreq request for frequency table\n"); + + /* + * Return CPUFreq frequency table here: loop over + * all VDD1 clkrates, pull out the mpu_ck frequencies, build + * table + */ + + return NULL; +} + +void omap_pm_cpu_set_freq(unsigned long f) +{ + if (f == 0) { + WARN_ON(1); + return; + } + + pr_debug("OMAP PM: CPUFreq requests CPU frequency to be set to %lu\n", + f); + + /* + * For l-o dev tree, determine whether MPU freq or DSP OPP id + * freq is higher. Find the OPP ID corresponding to the + * higher frequency. Call clk_round_rate() and clk_set_rate() + * on the OPP custom clock. + * + * CDP should just be able to set the VDD1 OPP clock rate here. + */ +} + +unsigned long omap_pm_cpu_get_freq(void) +{ + pr_debug("OMAP PM: CPUFreq requests current CPU frequency\n"); + + /* + * Call clk_get_rate() on the mpu_ck. + */ + + return 0; +} + +/* + * Device context loss tracking + */ + +int omap_pm_get_dev_context_loss_count(struct device *dev) +{ + if (!dev) { + WARN_ON(1); + return -EINVAL; + }; + + pr_debug("OMAP PM: returning context loss count for dev %s\n", + dev_name(dev)); + + /* + * Map the device to the powerdomain. Return the powerdomain + * off counter. + */ + + return 0; +} + + +/* Should be called before clk framework init */ +int __init omap_pm_if_early_init(struct omap_opp *mpu_opp_table, + struct omap_opp *dsp_opp_table, + struct omap_opp *l3_opp_table) +{ + mpu_opps = mpu_opp_table; + dsp_opps = dsp_opp_table; + l3_opps = l3_opp_table; + return 0; +} + +/* Must be called after clock framework is initialized */ +int __init omap_pm_if_init(void) +{ + return 0; +} + +void omap_pm_if_exit(void) +{ + /* Deallocate CPUFreq frequency table here */ +} + diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c new file mode 100644 index 000000000000..2c409fc6dd21 --- /dev/null +++ b/arch/arm/plat-omap/omap_device.c @@ -0,0 +1,687 @@ +/* + * omap_device implementation + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * Developed in collaboration with (alphabetical order): Benoit + * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram + * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard + * Woodruff + * + * 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 code provides a consistent interface for OMAP device drivers + * to control power management and interconnect properties of their + * devices. + * + * In the medium- to long-term, this code should either be + * a) implemented via arch-specific pointers in platform_data + * or + * b) implemented as a proper omap_bus/omap_device in Linux, no more + * platform_data func pointers + * + * + * Guidelines for usage by driver authors: + * + * 1. These functions are intended to be used by device drivers via + * function pointers in struct platform_data. As an example, + * omap_device_enable() should be passed to the driver as + * + * struct foo_driver_platform_data { + * ... + * int (*device_enable)(struct platform_device *pdev); + * ... + * } + * + * Note that the generic "device_enable" name is used, rather than + * "omap_device_enable". This is so other architectures can pass in their + * own enable/disable functions here. + * + * This should be populated during device setup: + * + * ... + * pdata->device_enable = omap_device_enable; + * ... + * + * 2. Drivers should first check to ensure the function pointer is not null + * before calling it, as in: + * + * if (pdata->device_enable) + * pdata->device_enable(pdev); + * + * This allows other architectures that don't use similar device_enable()/ + * device_shutdown() functions to execute normally. + * + * ... + * + * Suggested usage by device drivers: + * + * During device initialization: + * device_enable() + * + * During device idle: + * (save remaining device context if necessary) + * device_idle(); + * + * During device resume: + * device_enable(); + * (restore context if necessary) + * + * During device shutdown: + * device_shutdown() + * (device must be reinitialized at this point to use it again) + * + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <mach/omap_device.h> +#include <mach/omap_hwmod.h> + +/* These parameters are passed to _omap_device_{de,}activate() */ +#define USE_WAKEUP_LAT 0 +#define IGNORE_WAKEUP_LAT 1 + +/* XXX this should be moved into a separate file */ +#if defined(CONFIG_ARCH_OMAP2420) +# define OMAP_32KSYNCT_BASE 0x48004000 +#elif defined(CONFIG_ARCH_OMAP2430) +# define OMAP_32KSYNCT_BASE 0x49020000 +#elif defined(CONFIG_ARCH_OMAP3430) +# define OMAP_32KSYNCT_BASE 0x48320000 +#else +# error Unknown OMAP device +#endif + +/* Private functions */ + +/** + * _read_32ksynct - read the OMAP 32K sync timer + * + * Returns the current value of the 32KiHz synchronization counter. + * XXX this should be generalized to simply read the system clocksource. + * XXX this should be moved to a separate synctimer32k.c file + */ +static u32 _read_32ksynct(void) +{ + if (!cpu_class_is_omap2()) + BUG(); + + return __raw_readl(OMAP2_IO_ADDRESS(OMAP_32KSYNCT_BASE + 0x010)); +} + +/** + * _omap_device_activate - increase device readiness + * @od: struct omap_device * + * @ignore_lat: increase to latency target (0) or full readiness (1)? + * + * Increase readiness of omap_device @od (thus decreasing device + * wakeup latency, but consuming more power). If @ignore_lat is + * IGNORE_WAKEUP_LAT, make the omap_device fully active. Otherwise, + * if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup + * latency is greater than the requested maximum wakeup latency, step + * backwards in the omap_device_pm_latency table to ensure the + * device's maximum wakeup latency is less than or equal to the + * requested maximum wakeup latency. Returns 0. + */ +static int _omap_device_activate(struct omap_device *od, u8 ignore_lat) +{ + u32 a, b; + + pr_debug("omap_device: %s: activating\n", od->pdev.name); + + while (od->pm_lat_level > 0) { + struct omap_device_pm_latency *odpl; + int act_lat = 0; + + od->pm_lat_level--; + + odpl = od->pm_lats + od->pm_lat_level; + + if (!ignore_lat && + (od->dev_wakeup_lat <= od->_dev_wakeup_lat_limit)) + break; + + a = _read_32ksynct(); + + /* XXX check return code */ + odpl->activate_func(od); + + b = _read_32ksynct(); + + act_lat = (b - a) >> 15; /* 32KiHz cycles to microseconds */ + + pr_debug("omap_device: %s: pm_lat %d: activate: elapsed time " + "%d usec\n", od->pdev.name, od->pm_lat_level, act_lat); + + WARN(act_lat > odpl->activate_lat, "omap_device: %s.%d: " + "activate step %d took longer than expected (%d > %d)\n", + od->pdev.name, od->pdev.id, od->pm_lat_level, + act_lat, odpl->activate_lat); + + od->dev_wakeup_lat -= odpl->activate_lat; + } + + return 0; +} + +/** + * _omap_device_deactivate - decrease device readiness + * @od: struct omap_device * + * @ignore_lat: decrease to latency target (0) or full inactivity (1)? + * + * Decrease readiness of omap_device @od (thus increasing device + * wakeup latency, but conserving power). If @ignore_lat is + * IGNORE_WAKEUP_LAT, make the omap_device fully inactive. Otherwise, + * if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup + * latency is less than the requested maximum wakeup latency, step + * forwards in the omap_device_pm_latency table to ensure the device's + * maximum wakeup latency is less than or equal to the requested + * maximum wakeup latency. Returns 0. + */ +static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat) +{ + u32 a, b; + + pr_debug("omap_device: %s: deactivating\n", od->pdev.name); + + while (od->pm_lat_level < od->pm_lats_cnt) { + struct omap_device_pm_latency *odpl; + int deact_lat = 0; + + odpl = od->pm_lats + od->pm_lat_level; + + if (!ignore_lat && + ((od->dev_wakeup_lat + odpl->activate_lat) > + od->_dev_wakeup_lat_limit)) + break; + + a = _read_32ksynct(); + + /* XXX check return code */ + odpl->deactivate_func(od); + + b = _read_32ksynct(); + + deact_lat = (b - a) >> 15; /* 32KiHz cycles to microseconds */ + + pr_debug("omap_device: %s: pm_lat %d: deactivate: elapsed time " + "%d usec\n", od->pdev.name, od->pm_lat_level, + deact_lat); + + WARN(deact_lat > odpl->deactivate_lat, "omap_device: %s.%d: " + "deactivate step %d took longer than expected (%d > %d)\n", + od->pdev.name, od->pdev.id, od->pm_lat_level, + deact_lat, odpl->deactivate_lat); + + od->dev_wakeup_lat += odpl->activate_lat; + + od->pm_lat_level++; + } + + return 0; +} + +static inline struct omap_device *_find_by_pdev(struct platform_device *pdev) +{ + return container_of(pdev, struct omap_device, pdev); +} + + +/* Public functions for use by core code */ + +/** + * omap_device_count_resources - count number of struct resource entries needed + * @od: struct omap_device * + * + * Count the number of struct resource entries needed for this + * omap_device @od. Used by omap_device_build_ss() to determine how + * much memory to allocate before calling + * omap_device_fill_resources(). Returns the count. + */ +int omap_device_count_resources(struct omap_device *od) +{ + struct omap_hwmod *oh; + int c = 0; + int i; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + c += omap_hwmod_count_resources(oh); + + pr_debug("omap_device: %s: counted %d total resources across %d " + "hwmods\n", od->pdev.name, c, od->hwmods_cnt); + + return c; +} + +/** + * omap_device_fill_resources - fill in array of struct resource + * @od: struct omap_device * + * @res: pointer to an array of struct resource to be filled in + * + * Populate one or more empty struct resource pointed to by @res with + * the resource data for this omap_device @od. Used by + * omap_device_build_ss() after calling omap_device_count_resources(). + * Ideally this function would not be needed at all. If omap_device + * replaces platform_device, then we can specify our own + * get_resource()/ get_irq()/etc functions that use the underlying + * omap_hwmod information. Or if platform_device is extended to use + * subarchitecture-specific function pointers, the various + * platform_device functions can simply call omap_device internal + * functions to get device resources. Hacking around the existing + * platform_device code wastes memory. Returns 0. + */ +int omap_device_fill_resources(struct omap_device *od, struct resource *res) +{ + struct omap_hwmod *oh; + int c = 0; + int i, r; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) { + r = omap_hwmod_fill_resources(oh, res); + res += r; + c += r; + } + + return 0; +} + +/** + * omap_device_build - build and register an omap_device with one omap_hwmod + * @pdev_name: name of the platform_device driver to use + * @pdev_id: this platform_device's connection ID + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * + * Convenience function for building and registering a single + * omap_device record, which in turn builds and registers a + * platform_device record. See omap_device_build_ss() for more + * information. Returns ERR_PTR(-EINVAL) if @oh is NULL; otherwise, + * passes along the return value of omap_device_build_ss(). + */ +struct omap_device *omap_device_build(const char *pdev_name, int pdev_id, + struct omap_hwmod *oh, void *pdata, + int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt) +{ + struct omap_hwmod *ohs[] = { oh }; + + if (!oh) + return ERR_PTR(-EINVAL); + + return omap_device_build_ss(pdev_name, pdev_id, ohs, 1, pdata, + pdata_len, pm_lats, pm_lats_cnt); +} + +/** + * omap_device_build_ss - build and register an omap_device with multiple hwmods + * @pdev_name: name of the platform_device driver to use + * @pdev_id: this platform_device's connection ID + * @oh: ptr to the single omap_hwmod that backs this omap_device + * @pdata: platform_data ptr to associate with the platform_device + * @pdata_len: amount of memory pointed to by @pdata + * @pm_lats: pointer to a omap_device_pm_latency array for this device + * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats + * + * Convenience function for building and registering an omap_device + * subsystem record. Subsystem records consist of multiple + * omap_hwmods. This function in turn builds and registers a + * platform_device record. Returns an ERR_PTR() on error, or passes + * along the return value of omap_device_register(). + */ +struct omap_device *omap_device_build_ss(const char *pdev_name, int pdev_id, + struct omap_hwmod **ohs, int oh_cnt, + void *pdata, int pdata_len, + struct omap_device_pm_latency *pm_lats, + int pm_lats_cnt) +{ + int ret = -ENOMEM; + struct omap_device *od; + char *pdev_name2; + struct resource *res = NULL; + int res_count; + struct omap_hwmod **hwmods; + + if (!ohs || oh_cnt == 0 || !pdev_name) + return ERR_PTR(-EINVAL); + + if (!pdata && pdata_len > 0) + return ERR_PTR(-EINVAL); + + pr_debug("omap_device: %s: building with %d hwmods\n", pdev_name, + oh_cnt); + + od = kzalloc(sizeof(struct omap_device), GFP_KERNEL); + if (!od) + return ERR_PTR(-ENOMEM); + + od->hwmods_cnt = oh_cnt; + + hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, + GFP_KERNEL); + if (!hwmods) + goto odbs_exit1; + + memcpy(hwmods, ohs, sizeof(struct omap_hwmod *) * oh_cnt); + od->hwmods = hwmods; + + pdev_name2 = kzalloc(strlen(pdev_name) + 1, GFP_KERNEL); + if (!pdev_name2) + goto odbs_exit2; + strcpy(pdev_name2, pdev_name); + + od->pdev.name = pdev_name2; + od->pdev.id = pdev_id; + + res_count = omap_device_count_resources(od); + if (res_count > 0) { + res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL); + if (!res) + goto odbs_exit3; + } + omap_device_fill_resources(od, res); + + od->pdev.num_resources = res_count; + od->pdev.resource = res; + + platform_device_add_data(&od->pdev, pdata, pdata_len); + + od->pm_lats = pm_lats; + od->pm_lats_cnt = pm_lats_cnt; + + ret = omap_device_register(od); + if (ret) + goto odbs_exit4; + + return od; + +odbs_exit4: + kfree(res); +odbs_exit3: + kfree(pdev_name2); +odbs_exit2: + kfree(hwmods); +odbs_exit1: + kfree(od); + + pr_err("omap_device: %s: build failed (%d)\n", pdev_name, ret); + + return ERR_PTR(ret); +} + +/** + * omap_device_register - register an omap_device with one omap_hwmod + * @od: struct omap_device * to register + * + * Register the omap_device structure. This currently just calls + * platform_device_register() on the underlying platform_device. + * Returns the return value of platform_device_register(). + */ +int omap_device_register(struct omap_device *od) +{ + pr_debug("omap_device: %s: registering\n", od->pdev.name); + + return platform_device_register(&od->pdev); +} + + +/* Public functions for use by device drivers through struct platform_data */ + +/** + * omap_device_enable - fully activate an omap_device + * @od: struct omap_device * to activate + * + * Do whatever is necessary for the hwmods underlying omap_device @od + * to be accessible and ready to operate. This generally involves + * enabling clocks, setting SYSCONFIG registers; and in the future may + * involve remuxing pins. Device drivers should call this function + * (through platform_data function pointers) where they would normally + * enable clocks, etc. Returns -EINVAL if called when the omap_device + * is already enabled, or passes along the return value of + * _omap_device_activate(). + */ +int omap_device_enable(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = _find_by_pdev(pdev); + + if (od->_state == OMAP_DEVICE_STATE_ENABLED) { + WARN(1, "omap_device: %s.%d: omap_device_enable() called from " + "invalid state\n", od->pdev.name, od->pdev.id); + return -EINVAL; + } + + /* Enable everything if we're enabling this device from scratch */ + if (od->_state == OMAP_DEVICE_STATE_UNKNOWN) + od->pm_lat_level = od->pm_lats_cnt; + + ret = _omap_device_activate(od, IGNORE_WAKEUP_LAT); + + od->dev_wakeup_lat = 0; + od->_dev_wakeup_lat_limit = INT_MAX; + od->_state = OMAP_DEVICE_STATE_ENABLED; + + return ret; +} + +/** + * omap_device_idle - idle an omap_device + * @od: struct omap_device * to idle + * + * Idle omap_device @od by calling as many .deactivate_func() entries + * in the omap_device's pm_lats table as is possible without exceeding + * the device's maximum wakeup latency limit, pm_lat_limit. Device + * drivers should call this function (through platform_data function + * pointers) where they would normally disable clocks after operations + * complete, etc.. Returns -EINVAL if the omap_device is not + * currently enabled, or passes along the return value of + * _omap_device_deactivate(). + */ +int omap_device_idle(struct platform_device *pdev) +{ + int ret; + struct omap_device *od; + + od = _find_by_pdev(pdev); + + if (od->_state != OMAP_DEVICE_STATE_ENABLED) { + WARN(1, "omap_device: %s.%d: omap_device_idle() called from " + "invalid state\n", od->pdev.name, od->pdev.id); + return -EINVAL; + } + + ret = _omap_device_deactivate(od, USE_WAKEUP_LAT); + + od->_state = OMAP_DEVICE_STATE_IDLE; + + return ret; +} + +/** + * omap_device_shutdown - shut down an omap_device + * @od: struct omap_device * to shut down + * + * Shut down omap_device @od by calling all .deactivate_func() entries + * in the omap_device's pm_lats table and then shutting down all of + * the underlying omap_hwmods. Used when a device is being "removed" + * or a device driver is being unloaded. Returns -EINVAL if the + * omap_device is not currently enabled or idle, or passes along the + * return value of _omap_device_deactivate(). + */ +int omap_device_shutdown(struct platform_device *pdev) +{ + int ret, i; + struct omap_device *od; + struct omap_hwmod *oh; + + od = _find_by_pdev(pdev); + + if (od->_state != OMAP_DEVICE_STATE_ENABLED && + od->_state != OMAP_DEVICE_STATE_IDLE) { + WARN(1, "omap_device: %s.%d: omap_device_shutdown() called " + "from invalid state\n", od->pdev.name, od->pdev.id); + return -EINVAL; + } + + ret = _omap_device_deactivate(od, IGNORE_WAKEUP_LAT); + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + omap_hwmod_shutdown(oh); + + od->_state = OMAP_DEVICE_STATE_SHUTDOWN; + + return ret; +} + +/** + * omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim + * @od: struct omap_device * + * + * When a device's maximum wakeup latency limit changes, call some of + * the .activate_func or .deactivate_func function pointers in the + * omap_device's pm_lats array to ensure that the device's maximum + * wakeup latency is less than or equal to the new latency limit. + * Intended to be called by OMAP PM code whenever a device's maximum + * wakeup latency limit changes (e.g., via + * omap_pm_set_dev_wakeup_lat()). Returns 0 if nothing needs to be + * done (e.g., if the omap_device is not currently idle, or if the + * wakeup latency is already current with the new limit) or passes + * along the return value of _omap_device_deactivate() or + * _omap_device_activate(). + */ +int omap_device_align_pm_lat(struct platform_device *pdev, + u32 new_wakeup_lat_limit) +{ + int ret = -EINVAL; + struct omap_device *od; + + od = _find_by_pdev(pdev); + + if (new_wakeup_lat_limit == od->dev_wakeup_lat) + return 0; + + od->_dev_wakeup_lat_limit = new_wakeup_lat_limit; + + if (od->_state != OMAP_DEVICE_STATE_IDLE) + return 0; + else if (new_wakeup_lat_limit > od->dev_wakeup_lat) + ret = _omap_device_deactivate(od, USE_WAKEUP_LAT); + else if (new_wakeup_lat_limit < od->dev_wakeup_lat) + ret = _omap_device_activate(od, USE_WAKEUP_LAT); + + return ret; +} + +/** + * omap_device_get_pwrdm - return the powerdomain * associated with @od + * @od: struct omap_device * + * + * Return the powerdomain associated with the first underlying + * omap_hwmod for this omap_device. Intended for use by core OMAP PM + * code. Returns NULL on error or a struct powerdomain * upon + * success. + */ +struct powerdomain *omap_device_get_pwrdm(struct omap_device *od) +{ + /* + * XXX Assumes that all omap_hwmod powerdomains are identical. + * This may not necessarily be true. There should be a sanity + * check in here to WARN() if any difference appears. + */ + if (!od->hwmods_cnt) + return NULL; + + return omap_hwmod_get_pwrdm(od->hwmods[0]); +} + +/* + * Public functions intended for use in omap_device_pm_latency + * .activate_func and .deactivate_func function pointers + */ + +/** + * omap_device_enable_hwmods - call omap_hwmod_enable() on all hwmods + * @od: struct omap_device *od + * + * Enable all underlying hwmods. Returns 0. + */ +int omap_device_enable_hwmods(struct omap_device *od) +{ + struct omap_hwmod *oh; + int i; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + omap_hwmod_enable(oh); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_idle_hwmods - call omap_hwmod_idle() on all hwmods + * @od: struct omap_device *od + * + * Idle all underlying hwmods. Returns 0. + */ +int omap_device_idle_hwmods(struct omap_device *od) +{ + struct omap_hwmod *oh; + int i; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + omap_hwmod_idle(oh); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_disable_clocks - disable all main and interface clocks + * @od: struct omap_device *od + * + * Disable the main functional clock and interface clock for all of the + * omap_hwmods associated with the omap_device. Returns 0. + */ +int omap_device_disable_clocks(struct omap_device *od) +{ + struct omap_hwmod *oh; + int i; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + omap_hwmod_disable_clocks(oh); + + /* XXX pass along return value here? */ + return 0; +} + +/** + * omap_device_enable_clocks - enable all main and interface clocks + * @od: struct omap_device *od + * + * Enable the main functional clock and interface clock for all of the + * omap_hwmods associated with the omap_device. Returns 0. + */ +int omap_device_enable_clocks(struct omap_device *od) +{ + struct omap_hwmod *oh; + int i; + + for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) + omap_hwmod_enable_clocks(oh); + + /* XXX pass along return value here? */ + return 0; +} diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 5eae7876979c..925f64711c37 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -56,16 +56,16 @@ #define SRAM_BOOTLOADER_SZ 0x80 #endif -#define OMAP24XX_VA_REQINFOPERM0 IO_ADDRESS(0x68005048) -#define OMAP24XX_VA_READPERM0 IO_ADDRESS(0x68005050) -#define OMAP24XX_VA_WRITEPERM0 IO_ADDRESS(0x68005058) - -#define OMAP34XX_VA_REQINFOPERM0 IO_ADDRESS(0x68012848) -#define OMAP34XX_VA_READPERM0 IO_ADDRESS(0x68012850) -#define OMAP34XX_VA_WRITEPERM0 IO_ADDRESS(0x68012858) -#define OMAP34XX_VA_ADDR_MATCH2 IO_ADDRESS(0x68012880) -#define OMAP34XX_VA_SMS_RG_ATT0 IO_ADDRESS(0x6C000048) -#define OMAP34XX_VA_CONTROL_STAT IO_ADDRESS(0x480022F0) +#define OMAP24XX_VA_REQINFOPERM0 OMAP2_IO_ADDRESS(0x68005048) +#define OMAP24XX_VA_READPERM0 OMAP2_IO_ADDRESS(0x68005050) +#define OMAP24XX_VA_WRITEPERM0 OMAP2_IO_ADDRESS(0x68005058) + +#define OMAP34XX_VA_REQINFOPERM0 OMAP2_IO_ADDRESS(0x68012848) +#define OMAP34XX_VA_READPERM0 OMAP2_IO_ADDRESS(0x68012850) +#define OMAP34XX_VA_WRITEPERM0 OMAP2_IO_ADDRESS(0x68012858) +#define OMAP34XX_VA_ADDR_MATCH2 OMAP2_IO_ADDRESS(0x68012880) +#define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_IO_ADDRESS(0x6C000048) +#define OMAP34XX_VA_CONTROL_STAT OMAP2_IO_ADDRESS(0x480022F0) #define GP_DEVICE 0x300 |