From 941132606c7611246d2034cb7b01f9270c2d1ede Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 28 Aug 2009 10:50:33 -0700 Subject: OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS instead Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/control.h | 12 ++--- arch/arm/plat-omap/include/mach/entry-macro.S | 8 ++-- arch/arm/plat-omap/include/mach/io.h | 64 +++++++++------------------ arch/arm/plat-omap/include/mach/mtd-xip.h | 2 +- arch/arm/plat-omap/include/mach/omap44xx.h | 8 ++-- arch/arm/plat-omap/include/mach/sdrc.h | 6 +-- 6 files changed, 39 insertions(+), 61 deletions(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/control.h b/arch/arm/plat-omap/include/mach/control.h index 8140dbccb7b..826d317cdbe 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 56426ed45ef..a5592991634 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 diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 21fb0efdda8..55659809478 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -54,15 +54,23 @@ * ---------------------------------------------------------------------------- */ +#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 */ + #if defined(CONFIG_ARCH_OMAP1) #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 IO_VIRT (IO_PHYS - OMAP1_IO_OFFSET) #elif defined(CONFIG_ARCH_OMAP2) @@ -87,11 +95,6 @@ #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 @@ -143,12 +146,6 @@ #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 @@ -188,39 +185,20 @@ #define OMAP44XX_GPMC_VIRT 0xe0000000 #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)) - -#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/mtd-xip.h b/arch/arm/plat-omap/include/mach/mtd-xip.h index 39b591ff54b..f82a8dcaad9 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/omap44xx.h b/arch/arm/plat-omap/include/mach/omap44xx.h index 15dec7f1c7c..b3ba5ac7b4a 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/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index 0be18e4ff18..93f70d2cbce 100644 --- a/arch/arm/plat-omap/include/mach/sdrc.h +++ b/arch/arm/plat-omap/include/mach/sdrc.h @@ -71,11 +71,11 @@ */ #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() */ -- cgit v1.2.3 From 6175556fdc0a66ce5f1831e22892fac6f28fc2ec Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 28 Aug 2009 10:50:34 -0700 Subject: OMAP: Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASE Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASE Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/gpio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/gpio.h b/arch/arm/plat-omap/include/mach/gpio.h index 2b22a8799bc..633ff688b92 100644 --- a/arch/arm/plat-omap/include/mach/gpio.h +++ b/arch/arm/plat-omap/include/mach/gpio.h @@ -29,7 +29,7 @@ #include #include -#define OMAP_MPUIO_BASE 0xfffb5000 +#define OMAP1_MPUIO_BASE 0xfffb5000 #if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)) -- cgit v1.2.3 From db326be1bca2ddbcac80161953956c8b8bc5b00b Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 28 Aug 2009 10:50:37 -0700 Subject: OMAP: Remove ifdefs for io.h Remove ifdefs for io.h Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/io.h | 37 ++++++++++++++++++++++++++++-------- 1 file changed, 29 insertions(+), 8 deletions(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/io.h b/arch/arm/plat-omap/include/mach/io.h index 55659809478..8d32df32b0b 100644 --- a/arch/arm/plat-omap/include/mach/io.h +++ b/arch/arm/plat-omap/include/mach/io.h @@ -66,13 +66,21 @@ #define OMAP2_IO_OFFSET 0x90000000 #define OMAP2_IO_ADDRESS(pa) IOMEM((pa) + OMAP2_IO_OFFSET) /* L3 and L4 */ -#if defined(CONFIG_ARCH_OMAP1) +/* + * ---------------------------------------------------------------------------- + * Omap1 specific IO mapping + * ---------------------------------------------------------------------------- + */ -#define IO_PHYS 0xFFFB0000 -#define IO_SIZE 0x40000 -#define IO_VIRT (IO_PHYS - OMAP1_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 */ @@ -106,7 +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 */ @@ -157,8 +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 @@ -185,7 +201,12 @@ #define OMAP44XX_GPMC_VIRT 0xe0000000 #define OMAP44XX_GPMC_SIZE SZ_1M -#endif + +/* + * ---------------------------------------------------------------------------- + * Omap specific register access + * ---------------------------------------------------------------------------- + */ #ifndef __ASSEMBLER__ -- cgit v1.2.3 From 987cadcf3ccf9e5bde7a31d9be392f9de5f88833 Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Fri, 28 Aug 2009 10:51:29 -0700 Subject: OMAP: remove OMAP_TAG_SERIAL_CONSOLE Omap tags are deprecated and remove OMAP_TAG_SERIAL_CONSOLE. Console must be enabled with the console boot parameter instead. Signed-off-by: Kalle Valo Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/board.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/board.h b/arch/arm/plat-omap/include/mach/board.h index 50ea79a0efa..0d125868b62 100644 --- a/arch/arm/plat-omap/include/mach/board.h +++ b/arch/arm/plat-omap/include/mach/board.h @@ -16,7 +16,6 @@ /* 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 -- cgit v1.2.3 From 15ac408ee5a509053a765b816e9179515329369f Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Fri, 28 Aug 2009 10:51:31 -0700 Subject: OMAP: UART: drop OMAP_TAG_UART, enable all UARTs, auto-disabled on idle OMAP tags are deprecrated so drop them. Drop UART config data which decides which UARTs to enable during boot. This is no longer necessary since serial core code disables clocks after inactivity. Background: with new UART idle code, all on-chip UARTs are idled using a configurable inactivity timer (default 5 seconds.) After the inactivity timer, UART clocks are disabled automatically. Signed-off-by: Kalle Valo Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/board.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/board.h b/arch/arm/plat-omap/include/mach/board.h index 0d125868b62..8e913c32281 100644 --- a/arch/arm/plat-omap/include/mach/board.h +++ b/arch/arm/plat-omap/include/mach/board.h @@ -18,7 +18,6 @@ #define OMAP_TAG_CLOCK 0x4f01 #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 -- cgit v1.2.3 From 14e0e6796a0d460ac6f7727616161dc317bbbf3a Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Fri, 28 Aug 2009 10:54:41 -0700 Subject: OMAP: iommu: add initial debugfs support This enables to peek the following data. $ /debug/iommu/isp# ls mem nr_tlb_entries regs mmap pagetable tlb $ /debug/iommu/isp# head pagetable L: da: pa: ----------------------------------------- 2: 00001000 8ae4a002 2: 00002000 8e7bb002 2: 00003000 8ae49002 2: 00004000 8ae65002 ..... Signed-off-by: Hiroshi DOYU Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/iommu.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/iommu.h b/arch/arm/plat-omap/include/mach/iommu.h index 769b00b4c34..46d41ac83db 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 */ -- cgit v1.2.3 From 57b9daa0e18167e8ba449bc236c3f4a755dd1833 Mon Sep 17 00:00:00 2001 From: Vikram Pandita Date: Fri, 28 Aug 2009 11:24:11 -0700 Subject: OMAP3: MMC: Add mux for pins For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are multiple configurations possible, so the muxing is left to be done in board file. Signed-off-by: Vikram Pandita Signed-off-by: Chikkature Rajashekar Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/mach/mux.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 80281c458ba..2c57bad65b0 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -857,6 +857,34 @@ 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, }; struct omap_mux_cfg { -- cgit v1.2.3 From 5110b2980a1299f6c253260de385b0dc2b2308b0 Mon Sep 17 00:00:00 2001 From: "Reddy, Teerth" Date: Mon, 24 Aug 2009 11:58:59 +0530 Subject: OMAP3: PM: add T2 interrupt line mux setting, and enable on 3430SDP This patch changes for setting the padconf value for sys_nirq line which is connected to T2 INTR1. This will fix the T2 keypad wakeup issue on OMAP3 SDP. Signed-off-by: Teerth Reddy Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/mach/mux.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/mux.h b/arch/arm/plat-omap/include/mach/mux.h index 2c57bad65b0..98dfab651df 100644 --- a/arch/arm/plat-omap/include/mach/mux.h +++ b/arch/arm/plat-omap/include/mach/mux.h @@ -885,6 +885,9 @@ enum omap34xx_index { AH9_3430_MMC3_DAT1, AF13_3430_MMC3_DAT2, AF13_3430_MMC3_DAT3, + + /* SYS_NIRQ T2 INT1 */ + AF26_34XX_SYS_NIRQ, }; struct omap_mux_cfg { -- cgit v1.2.3 From ba20bb126940ce4847e146a0d00b7f7b0868d773 Mon Sep 17 00:00:00 2001 From: Peter 'p2' De Schrijver Date: Wed, 15 Oct 2008 17:48:43 +0300 Subject: OMAP: PM counter infrastructure. This patch provides the infrastructure to count how many times a powerdomain entered a given power state (on, inactive, retention, off). A number of functions are provided which will be called by the chip specific powerdomain and clockdomain code whenever a transition might have happened. Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/mach/powerdomain.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/powerdomain.h b/arch/arm/plat-omap/include/mach/powerdomain.h index 69c9e675d8e..52663fc549d 100644 --- a/arch/arm/plat-omap/include/mach/powerdomain.h +++ b/arch/arm/plat-omap/include/mach/powerdomain.h @@ -117,6 +117,8 @@ struct powerdomain { struct list_head node; + int state; + unsigned state_counter[4]; }; @@ -164,4 +166,9 @@ 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 -- cgit v1.2.3 From a23456e9b02b3fae0fc78cb33fad69803a50e5bc Mon Sep 17 00:00:00 2001 From: Peter 'p2' De Schrijver Date: Wed, 15 Oct 2008 18:13:47 +0300 Subject: OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each. Add some infrastructure to easily iterate over clock and power domains. Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/mach/clockdomain.h | 3 ++- arch/arm/plat-omap/include/mach/powerdomain.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/clockdomain.h b/arch/arm/plat-omap/include/mach/clockdomain.h index b9d0dd2da89..99ebd886f13 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/powerdomain.h b/arch/arm/plat-omap/include/mach/powerdomain.h index 52663fc549d..de03f3dbbf3 100644 --- a/arch/arm/plat-omap/include/mach/powerdomain.h +++ b/arch/arm/plat-omap/include/mach/powerdomain.h @@ -128,7 +128,8 @@ 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); -- cgit v1.2.3 From 331b93f41dff21c8f95709032cb184fb82bf2003 Mon Sep 17 00:00:00 2001 From: Peter 'p2' De Schrijver Date: Wed, 15 Oct 2008 18:13:48 +0300 Subject: OMAP: PM: Add pm-debug counters This patch provides the debugfs entries and a function which will be called by the PM code to register the time spent per domain per state. Also some new fields are added to the powerdomain struct to keep the time information. NOTE: As of v2.6.29, using getnstimeofday() after drivers are suspended is no longer safe since the timekeeping subsystem is also suspended as part of the suspend process. Instead use sched_clock() which on OMAP returns the 32k SYNC timer in nanoseconds. Also, do not print out status for meta powerdomains (dpll*) Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/mach/powerdomain.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/powerdomain.h b/arch/arm/plat-omap/include/mach/powerdomain.h index de03f3dbbf3..6271d8556a4 100644 --- a/arch/arm/plat-omap/include/mach/powerdomain.h +++ b/arch/arm/plat-omap/include/mach/powerdomain.h @@ -119,6 +119,11 @@ struct powerdomain { int state; unsigned state_counter[4]; + +#ifdef CONFIG_PM_DEBUG + s64 timer; + s64 state_timer[4]; +#endif }; -- cgit v1.2.3 From 6dda2d4b1306c19e39496e9bb305424d1d547013 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Thu, 3 Sep 2009 20:13:56 +0300 Subject: OMAP: SDRC: Add several new register definitions Add missing SDRC register offset macros. Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman [paul@pwsan.com: added commit message] Signed-off-by: Paul Walmsley --- arch/arm/plat-omap/include/mach/sdrc.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h index 93f70d2cbce..1c09c78a48f 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 -- cgit v1.2.3 From c0407a96d04794be586eab4a412320079446cf93 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 3 Sep 2009 20:14:01 +0300 Subject: OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM no-op layer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The interface provides device drivers, CPUFreq, and DSPBridge with a means of controlling OMAP power management parameters that are not yet supported by the Linux PM PMQoS interface. Copious documentation is in the patch in Documentation/arm/OMAP/omap_pm and the interface header file, arch/arm/plat-omap/include/mach/omap-pm.h. Thanks to Rajendra Nayak for adding CORE (VDD2) OPP support and moving the OPP table initialization earlier in the event that the clock code needs them. Thanks to Tero Kristo for fixing the parameter check in omap_pm_set_min_bus_tput(). Jouni signed off on Tero's patch. Signed-off-by: Paul Walmsley Signed-off-by: Kevin Hilman Signed-off-by: Rajendra Nayak Signed-off-by: Tero Kristo Signed-off-by: Jouni Högander Cc: Tony Lindgren Cc: Igor Stoppa Cc: Richard Woodruff Cc: Anand Sawant Cc: Sakari Poussa Cc: Veeramanikandan Raju Cc: Karthik Dasu --- arch/arm/plat-omap/include/mach/omap-pm.h | 301 ++++++++++++++++++++++++++++++ 1 file changed, 301 insertions(+) create mode 100644 arch/arm/plat-omap/include/mach/omap-pm.h (limited to 'arch/arm/plat-omap/include/mach') 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 00000000000..3ee41d71149 --- /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 +#include + +#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 -- cgit v1.2.3 From b3c6df3ab2b17cd7ddf927d39a64f235b25ac8d4 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 3 Sep 2009 20:14:02 +0300 Subject: OMAP2/3 board-*.c files: read bootloader configuration earlier Most board-*.c files read configuration data from the bootloader in their .init_machine() function. This needs to happen earlier, at some point before omap2_init_common_hw() is called. This is because a future patch will use the bootloader serial console port information to enable the UART clocks earlier, immediately after omap2_clk_init(). This is in turn necessary since otherwise clock tree usecounts on clocks like dpll4_m2x2_ck will be bogus, which can cause the currently-active console UART clock to be disabled during boot. Signed-off-by: Paul Walmsley --- arch/arm/plat-omap/include/mach/serial.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/arm/plat-omap/include/mach') diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h index def0529c75e..e249186d26e 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 + #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); -- cgit v1.2.3 From 63c852384125ca0eff0e695f92cbbd439bed4aa3 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 3 Sep 2009 20:14:03 +0300 Subject: OMAP2/3/4: create omap_hwmod layer OMAP SoCs can be considered a collection of hardware IP blocks connected by various interconnects. The bus topology and device integration data is somewhat more complex than platform_device can encode. This patch creates code and structures to manage information about OMAP on-chip devices ("hardware modules") and their integration to the rest of the chip. Hardware module data is intended to be generated dynamically from the TI hardware database for the OMAP4 chips and beyond, easing Linux support for new chip variants. This code currently: - resets and configures all hardware modules upon startup, reducing bootloader dependencies; - provides hooks for Linux driver model code to enable, idle, and shutdown hardware modules (forthcoming patch); - waits for hardware modules to leave idle once their clocks are enabled and OCP_SYSCONFIG bits are set appropriately. - provides a means to pass arbitrary IP block configuration data (e.g., FIFO size) to the device driver (via the dev_attr void pointer) In the future this code is intended to: - estimate interconnect bandwidth and latency characteristics to ensure constraints are satisfied during DVFS - provide *GRPSEL bit data to the powerdomain code - handle pin/ball muxing for devices - generate IO mapping information dynamically - supply device firewall configuration data - provide hardware module data to other on-chip coprocessor software - allow the removal of the "disable unused clocks" code in the OMAP2/3 clock code This patch represents a collaborative effort involving many people from TI, Nokia, and the Linux-OMAP community. Signed-off-by: Paul Walmsley Cc: Benoit Cousson Cc: Kevin Hilman Cc: Tony Lindgren Cc: Rajendra Nayak Cc: Vikram Pandita Cc: Sakari Poussa Cc: Anand Sawant Cc: Santosh Shilimkar Cc: Eric Thomas Cc: Richard Woodruff --- arch/arm/plat-omap/include/mach/omap_hwmod.h | 447 +++++++++++++++++++++++++++ 1 file changed, 447 insertions(+) create mode 100644 arch/arm/plat-omap/include/mach/omap_hwmod.h (limited to 'arch/arm/plat-omap/include/mach') 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 00000000000..1f79c20e292 --- /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 +#include + +#include + +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 -- cgit v1.2.3 From b04b65ab5b4fc86af073424af6295be4e067adf3 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 3 Sep 2009 20:14:05 +0300 Subject: OMAP2/3/4 core: create omap_device layer The omap_device code provides a mapping of omap_hwmod structures into the platform_device system, and includes some details on external (board-level) integration. This allows drivers to enable, idle, and shutdown on-chip device resources, including clocks, regulators, etc. The resources enabled and idled are dependent on the device's maximum wakeup latency constraint (if present). At the moment, omap_device functions are intended to be called from platform_data function pointers. Ideally in the future these functions will be called from either subarchitecture-specific platform_data activate, deactivate functions, or via an custom bus/device type for OMAP. Signed-off-by: Paul Walmsley Cc: Benoit Cousson Cc: Kevin Hilman Cc: Tony Lindgren Cc: Rajendra Nayak Cc: Vikram Pandita Cc: Sakari Poussa Cc: Anand Sawant Cc: Santosh Shilimkar Cc: Eric Thomas Cc: Richard Woodruff --- arch/arm/plat-omap/include/mach/omap_device.h | 141 ++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 arch/arm/plat-omap/include/mach/omap_device.h (limited to 'arch/arm/plat-omap/include/mach') 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 00000000000..bd0e136db33 --- /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 +#include + +#include + +/* 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 + -- cgit v1.2.3