diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cm1_44xx.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cm2_44xx.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cm44xx.c | 52 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cm4xxx.c | 62 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cminst44xx.c | 109 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/cminst44xx.h | 25 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prcm.c | 26 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prcm44xx.h | 42 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prcm_mpu44xx.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prcm_mpu44xx.h | 8 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm44xx.c | 65 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm44xx.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prminst44xx.c | 66 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prminst44xx.h | 25 |
15 files changed, 458 insertions, 88 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index b2e4f7bcfa34..1fce382a90a9 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -77,7 +77,9 @@ obj-$(CONFIG_ARCH_OMAP3) += prcm.o cm2xxx_3xxx.o prm2xxx_3xxx.o # XXX The presence of cm2xxx_3xxx.o on the line below is temporary and # will be removed once the OMAP4 part of the codebase is converted to # use OMAP4-specific PRCM functions. -obj-$(CONFIG_ARCH_OMAP4) += prcm.o cm2xxx_3xxx.o cm4xxx.o +obj-$(CONFIG_ARCH_OMAP4) += prcm.o cm2xxx_3xxx.o cminst44xx.o \ + cm44xx.o prcm_mpu44xx.o \ + prminst44xx.o # OMAP powerdomain framework powerdomain-common += powerdomain.o powerdomain-common.o diff --git a/arch/arm/mach-omap2/cm1_44xx.h b/arch/arm/mach-omap2/cm1_44xx.h index aa2ee7802631..63ef9e3a857c 100644 --- a/arch/arm/mach-omap2/cm1_44xx.h +++ b/arch/arm/mach-omap2/cm1_44xx.h @@ -248,4 +248,9 @@ #define OMAP4_CM_DYN_DEP_PRESCAL_RESTORE_OFFSET 0x0040 #define OMAP4430_CM_DYN_DEP_PRESCAL_RESTORE OMAP44XX_CM1_REGADDR(OMAP4430_CM1_RESTORE_INST, 0x0040) +/* Function prototypes */ +extern u32 omap4_cm1_read_inst_reg(s16 inst, u16 idx); +extern void omap4_cm1_write_inst_reg(u32 val, s16 inst, u16 idx); +extern u32 omap4_cm1_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx); + #endif diff --git a/arch/arm/mach-omap2/cm2_44xx.h b/arch/arm/mach-omap2/cm2_44xx.h index 89c95220d3e9..0fd021069792 100644 --- a/arch/arm/mach-omap2/cm2_44xx.h +++ b/arch/arm/mach-omap2/cm2_44xx.h @@ -480,4 +480,10 @@ #define OMAP4430_CM_L3INIT_USB_TLL_CLKCTRL_RESTORE OMAP44XX_CM2_REGADDR(OMAP4430_CM2_RESTORE_INST, 0x0058) #define OMAP4_CM_SDMA_STATICDEP_RESTORE_OFFSET 0x005c #define OMAP4430_CM_SDMA_STATICDEP_RESTORE OMAP44XX_CM2_REGADDR(OMAP4430_CM2_RESTORE_INST, 0x005c) + +/* Function prototypes */ +extern u32 omap4_cm2_read_inst_reg(s16 inst, u16 idx); +extern void omap4_cm2_write_inst_reg(u32 val, s16 inst, u16 idx); +extern u32 omap4_cm2_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx); + #endif diff --git a/arch/arm/mach-omap2/cm44xx.c b/arch/arm/mach-omap2/cm44xx.c new file mode 100644 index 000000000000..e96f53ea01a1 --- /dev/null +++ b/arch/arm/mach-omap2/cm44xx.c @@ -0,0 +1,52 @@ +/* + * OMAP4 CM1, CM2 module low-level functions + * + * Copyright (C) 2010 Nokia Corporation + * Paul Walmsley + * + * 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 functions are intended to be used only by the cminst44xx.c file. + * XXX Perhaps we should just move them there and make them static. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <plat/common.h> + +#include "cm.h" +#include "cm1_44xx.h" +#include "cm2_44xx.h" +#include "cm-regbits-44xx.h" + +/* CM1 hardware module low-level functions */ + +/* Read a register in CM1 */ +u32 omap4_cm1_read_inst_reg(s16 inst, u16 reg) +{ + return __raw_readl(OMAP44XX_CM1_REGADDR(inst, reg)); +} + +/* Write into a register in CM1 */ +void omap4_cm1_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + __raw_writel(val, OMAP44XX_CM1_REGADDR(inst, reg)); +} + +/* Read a register in CM2 */ +u32 omap4_cm2_read_inst_reg(s16 inst, u16 reg) +{ + return __raw_readl(OMAP44XX_CM2_REGADDR(inst, reg)); +} + +/* Write into a register in CM2 */ +void omap4_cm2_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + __raw_writel(val, OMAP44XX_CM2_REGADDR(inst, reg)); +} diff --git a/arch/arm/mach-omap2/cm4xxx.c b/arch/arm/mach-omap2/cm4xxx.c deleted file mode 100644 index 25d2b3e4c6f7..000000000000 --- a/arch/arm/mach-omap2/cm4xxx.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * OMAP4 CM module functions - * - * Copyright (C) 2009 Nokia Corporation - * Paul Walmsley - * - * 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/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/io.h> - -#include <asm/atomic.h> - -#include <plat/common.h> - -#include "cm44xx.h" -#include "cm-regbits-44xx.h" - -/** - * omap4_cm_wait_module_ready - wait for a module to be in 'func' state - * @clkctrl_reg: CLKCTRL module address - * - * Wait for the module IDLEST to be functional. If the idle state is in any - * the non functional state (trans, idle or disabled), module and thus the - * sysconfig cannot be accessed and will probably lead to an "imprecise - * external abort" - * - * Module idle state: - * 0x0 func: Module is fully functional, including OCP - * 0x1 trans: Module is performing transition: wakeup, or sleep, or sleep - * abortion - * 0x2 idle: Module is in Idle mode (only OCP part). It is functional if - * using separate functional clock - * 0x3 disabled: Module is disabled and cannot be accessed - * - */ -int omap4_cm_wait_module_ready(void __iomem *clkctrl_reg) -{ - int i = 0; - - if (!clkctrl_reg) - return 0; - - omap_test_timeout(( - ((__raw_readl(clkctrl_reg) & OMAP4430_IDLEST_MASK) == 0) || - (((__raw_readl(clkctrl_reg) & OMAP4430_IDLEST_MASK) >> - OMAP4430_IDLEST_SHIFT) == 0x2)), - MAX_MODULE_READY_TIME, i); - - return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; -} - diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c new file mode 100644 index 000000000000..c13613b513b5 --- /dev/null +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -0,0 +1,109 @@ +/* + * OMAP4 CM instance functions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * 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 is needed since CM instances can be in the PRM, PRCM_MPU, CM1, + * or CM2 hardware modules. For example, the EMU_CM CM instance is in + * the PRM hardware module. What a mess... + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <plat/common.h> + +#include "cm.h" +#include "cm1_44xx.h" +#include "cm2_44xx.h" +#include "cm44xx.h" +#include "cminst44xx.h" +#include "cm-regbits-44xx.h" +#include "prcm44xx.h" +#include "prm44xx.h" +#include "prcm_mpu44xx.h" + +static u32 _cm_bases[OMAP4_MAX_PRCM_PARTITIONS] = { + [OMAP4430_INVALID_PRCM_PARTITION] = 0, + [OMAP4430_PRM_PARTITION] = OMAP4430_PRM_BASE, + [OMAP4430_CM1_PARTITION] = OMAP4430_CM1_BASE, + [OMAP4430_CM2_PARTITION] = OMAP4430_CM2_BASE, + [OMAP4430_SCRM_PARTITION] = 0, + [OMAP4430_PRCM_MPU_PARTITION] = OMAP4430_PRCM_MPU_BASE, +}; + +/* Read a register in a CM instance */ +u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_cm_bases[part]); + return __raw_readl(OMAP2_L4_IO_ADDRESS(_cm_bases[part] + inst + idx)); +} + +/* Write into a register in a CM instance */ +void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_cm_bases[part]); + __raw_writel(val, OMAP2_L4_IO_ADDRESS(_cm_bases[part] + inst + idx)); +} + +/* Read-modify-write a register in CM1. Caller must lock */ +u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst, + s16 idx) +{ + u32 v; + + v = omap4_cminst_read_inst_reg(part, inst, idx); + v &= ~mask; + v |= bits; + omap4_cminst_write_inst_reg(v, part, inst, idx); + + return v; +} + + +/** + * omap4_cm_wait_module_ready - wait for a module to be in 'func' state + * @clkctrl_reg: CLKCTRL module address + * + * Wait for the module IDLEST to be functional. If the idle state is in any + * the non functional state (trans, idle or disabled), module and thus the + * sysconfig cannot be accessed and will probably lead to an "imprecise + * external abort" + * + * Module idle state: + * 0x0 func: Module is fully functional, including OCP + * 0x1 trans: Module is performing transition: wakeup, or sleep, or sleep + * abortion + * 0x2 idle: Module is in Idle mode (only OCP part). It is functional if + * using separate functional clock + * 0x3 disabled: Module is disabled and cannot be accessed + * + */ +int omap4_cm_wait_module_ready(void __iomem *clkctrl_reg) +{ + int i = 0; + + if (!clkctrl_reg) + return 0; + + omap_test_timeout(( + ((__raw_readl(clkctrl_reg) & OMAP4430_IDLEST_MASK) == 0) || + (((__raw_readl(clkctrl_reg) & OMAP4430_IDLEST_MASK) >> + OMAP4430_IDLEST_SHIFT) == 0x2)), + MAX_MODULE_READY_TIME, i); + + return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; +} + diff --git a/arch/arm/mach-omap2/cminst44xx.h b/arch/arm/mach-omap2/cminst44xx.h new file mode 100644 index 000000000000..6baa4c7b14f1 --- /dev/null +++ b/arch/arm/mach-omap2/cminst44xx.h @@ -0,0 +1,25 @@ +/* + * OMAP4 Clock Management (CM) function prototypes + * + * Copyright (C) 2010 Nokia Corporation + * Paul Walmsley + * + * 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. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CMINST44XX_H +#define __ARCH_ASM_MACH_OMAP2_CMINST44XX_H + +/* + * In an ideal world, we would not export these low-level functions, + * but this will probably take some time to fix properly + */ +extern u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx); +extern void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx); +extern u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, + s16 inst, s16 idx); + +extern int omap4_cm_wait_module_ready(void __iomem *clkctrl_reg); + +#endif diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c index dd95cbbdecc7..fe0865bd64cf 100644 --- a/arch/arm/mach-omap2/prcm.c +++ b/arch/arm/mach-omap2/prcm.c @@ -33,6 +33,7 @@ #include "cm44xx.h" #include "prm2xxx_3xxx.h" #include "prm44xx.h" +#include "prcm44xx.h" #include "prm-regbits-24xx.h" #include "prm-regbits-44xx.h" #include "control.h" @@ -80,31 +81,6 @@ void omap_prcm_arch_reset(char mode, const char *cmd) prcm_offs, OMAP4_RM_RSTCTRL); } -/* Read a PRM register, AND it, and shift the result down to bit 0 */ -u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask) -{ - u32 v; - - v = __raw_readl(reg); - v &= mask; - v >>= __ffs(mask); - - return v; -} - -/* Read-modify-write a register in a PRM module. Caller must lock */ -u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg) -{ - u32 v; - - v = __raw_readl(reg); - v &= ~mask; - v |= bits; - __raw_writel(v, reg); - - return v; -} - /** * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness * @reg: physical address of module IDLEST register diff --git a/arch/arm/mach-omap2/prcm44xx.h b/arch/arm/mach-omap2/prcm44xx.h new file mode 100644 index 000000000000..7334ffb9d2c1 --- /dev/null +++ b/arch/arm/mach-omap2/prcm44xx.h @@ -0,0 +1,42 @@ +/* + * OMAP4 PRCM definitions + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Copyright (C) 2010 Nokia Corporation + * + * Paul Walmsley + * + * 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 file contains macros and functions that are common to all of + * the PRM/CM/PRCM blocks on the OMAP4 devices: PRM, CM1, CM2, + * PRCM_MPU, SCRM + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_PRCM44XX_H +#define __ARCH_ARM_MACH_OMAP2_PRCM44XX_H + +/* + * OMAP4 PRCM partition IDs + * + * The numbers and order are arbitrary, but 0 is reserved for the + * 'invalid' partition in case someone forgets to add a + * .prcm_partition field. + */ +#define OMAP4430_INVALID_PRCM_PARTITION 0 +#define OMAP4430_PRM_PARTITION 1 +#define OMAP4430_CM1_PARTITION 2 +#define OMAP4430_CM2_PARTITION 3 +#define OMAP4430_SCRM_PARTITION 4 +#define OMAP4430_PRCM_MPU_PARTITION 5 + +/* + * OMAP4_MAX_PRCM_PARTITIONS: set to the highest value of the PRCM partition + * IDs, plus one + */ +#define OMAP4_MAX_PRCM_PARTITIONS 6 + + +#endif diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.c b/arch/arm/mach-omap2/prcm_mpu44xx.c new file mode 100644 index 000000000000..171fe171a749 --- /dev/null +++ b/arch/arm/mach-omap2/prcm_mpu44xx.c @@ -0,0 +1,45 @@ +/* + * OMAP4 PRCM_MPU module functions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * 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/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <plat/common.h> + +#include "prcm_mpu44xx.h" +#include "cm-regbits-44xx.h" + +/* PRCM_MPU low-level functions */ + +u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 reg) +{ + return __raw_readl(OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); +} + +void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + __raw_writel(val, OMAP44XX_PRCM_MPU_REGADDR(inst, reg)); +} + +u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) +{ + u32 v; + + v = omap4_prcm_mpu_read_inst_reg(inst, reg); + v &= ~mask; + v |= bits; + omap4_prcm_mpu_write_inst_reg(v, inst, reg); + + return v; +} diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.h b/arch/arm/mach-omap2/prcm_mpu44xx.h index 80e00c16d36f..e5190e99fd94 100644 --- a/arch/arm/mach-omap2/prcm_mpu44xx.h +++ b/arch/arm/mach-omap2/prcm_mpu44xx.h @@ -88,4 +88,12 @@ #define OMAP4_CM_CPU1_CLKSTCTRL_OFFSET 0x0018 #define OMAP4430_CM_CPU1_CLKSTCTRL OMAP44XX_PRCM_MPU_REGADDR(OMAP4430_PRCM_MPU_CPU1_INST, 0x0018) +/* Function prototypes */ +# ifndef __ASSEMBLER__ +extern u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 idx); +extern void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 idx); +extern u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, + s16 idx); +# endif + #endif diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index 697b58f8e4a8..c016ae4cbad1 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -15,6 +15,7 @@ #include <linux/delay.h> #include <linux/errno.h> #include <linux/err.h> +#include <linux/io.h> #include <plat/common.h> #include <plat/cpu.h> @@ -29,6 +30,70 @@ */ #define OMAP4_RST_CTRL_ST_OFFSET 4 +/* PRM low-level functions */ + +/* Read a register in a CM/PRM instance in the PRM module */ +u32 omap4_prm_read_inst_reg(s16 inst, u16 reg) +{ + return __raw_readl(OMAP44XX_PRM_REGADDR(inst, reg)); +} + +/* Write into a register in a CM/PRM instance in the PRM module */ +void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg) +{ + __raw_writel(val, OMAP44XX_PRM_REGADDR(inst, reg)); +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg) +{ + u32 v; + + v = omap4_prm_read_inst_reg(inst, reg); + v &= ~mask; + v |= bits; + omap4_prm_write_inst_reg(v, inst, reg); + + return v; +} + +/* Read a PRM register, AND it, and shift the result down to bit 0 */ +/* XXX deprecated */ +u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask) +{ + u32 v; + + v = __raw_readl(reg); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +/* XXX deprecated */ +u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg) +{ + u32 v; + + v = __raw_readl(reg); + v &= ~mask; + v |= bits; + __raw_writel(v, reg); + + return v; +} + +u32 omap4_prm_set_inst_reg_bits(u32 bits, s16 inst, s16 reg) +{ + return omap4_prm_rmw_inst_reg_bits(bits, bits, inst, reg); +} + +u32 omap4_prm_clear_inst_reg_bits(u32 bits, s16 inst, s16 reg) +{ + return omap4_prm_rmw_inst_reg_bits(bits, 0x0, inst, reg); +} + /** * omap4_prm_is_hardreset_asserted - read the HW reset line state of * submodules contained in the hwmod module diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h index 3d361497ca70..358865344d58 100644 --- a/arch/arm/mach-omap2/prm44xx.h +++ b/arch/arm/mach-omap2/prm44xx.h @@ -744,6 +744,12 @@ /* Function prototypes */ # ifndef __ASSEMBLER__ +extern u32 omap4_prm_read_inst_reg(s16 inst, u16 idx); +extern void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 idx); +extern u32 omap4_prm_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 idx); +extern u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg); +extern u32 omap4_prm_set_inst_reg_bits(u32 bits, s16 inst, s16 idx); +extern u32 omap4_prm_clear_inst_reg_bits(u32 bits, s16 inst, s16 idx); extern u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask); extern int omap4_prm_is_hardreset_asserted(void __iomem *rstctrl_reg, u8 shift); diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c new file mode 100644 index 000000000000..a30324297278 --- /dev/null +++ b/arch/arm/mach-omap2/prminst44xx.c @@ -0,0 +1,66 @@ +/* + * OMAP4 PRM instance functions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * 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/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <plat/common.h> + +#include "prm44xx.h" +#include "prminst44xx.h" +#include "prm-regbits-44xx.h" +#include "prcm44xx.h" +#include "prcm_mpu44xx.h" + +static u32 _prm_bases[OMAP4_MAX_PRCM_PARTITIONS] = { + [OMAP4430_INVALID_PRCM_PARTITION] = 0, + [OMAP4430_PRM_PARTITION] = OMAP4430_PRM_BASE, + [OMAP4430_CM1_PARTITION] = 0, + [OMAP4430_CM2_PARTITION] = 0, + [OMAP4430_SCRM_PARTITION] = 0, + [OMAP4430_PRCM_MPU_PARTITION] = OMAP4430_PRCM_MPU_BASE, +}; + +/* Read a register in a PRM instance */ +u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_prm_bases[part]); + return __raw_readl(OMAP2_L4_IO_ADDRESS(_prm_bases[part] + inst + + idx)); +} + +/* Write into a register in a PRM instance */ +void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx) +{ + BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS || + part == OMAP4430_INVALID_PRCM_PARTITION || + !_prm_bases[part]); + __raw_writel(val, OMAP2_L4_IO_ADDRESS(_prm_bases[part] + inst + idx)); +} + +/* Read-modify-write a register in PRM. Caller must lock */ +u32 omap4_prminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst, + s16 idx) +{ + u32 v; + + v = omap4_prminst_read_inst_reg(part, inst, idx); + v &= ~mask; + v |= bits; + omap4_prminst_write_inst_reg(v, part, inst, idx); + + return v; +} diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h new file mode 100644 index 000000000000..02dd66ddda8b --- /dev/null +++ b/arch/arm/mach-omap2/prminst44xx.h @@ -0,0 +1,25 @@ +/* + * OMAP4 Power/Reset Management (PRM) function prototypes + * + * Copyright (C) 2010 Nokia Corporation + * Paul Walmsley + * + * 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. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_PRMINST44XX_H +#define __ARCH_ASM_MACH_OMAP2_PRMINST44XX_H + +/* + * In an ideal world, we would not export these low-level functions, + * but this will probably take some time to fix properly + */ +extern u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx); +extern void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx); +extern u32 omap4_prminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, + s16 inst, s16 idx); + +extern void omap4_prm_global_warm_sw_reset(void); + +#endif |
