diff options
Diffstat (limited to 'kernel/arch/arm/mach-at91')
| -rw-r--r-- | kernel/arch/arm/mach-at91/Kconfig | 22 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/Makefile | 5 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/Makefile.boot | 8 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/at91rm9200.c | 5 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/at91sam9.c | 8 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/generic.h | 13 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/include/mach/at91_ramc.h | 28 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/include/mach/at91rm9200_mc.h | 116 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/include/mach/at91sam9_smc.h | 98 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/pm.c | 89 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/pm.h | 14 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/pm_suspend.S | 5 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/sam9_smc.c | 136 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/sam9_smc.h | 11 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/sama5.c | 9 | ||||
| -rw-r--r-- | kernel/arch/arm/mach-at91/soc.h | 3 |
16 files changed, 123 insertions, 447 deletions
diff --git a/kernel/arch/arm/mach-at91/Kconfig b/kernel/arch/arm/mach-at91/Kconfig index fd95f3494..3f501305c 100644 --- a/kernel/arch/arm/mach-at91/Kconfig +++ b/kernel/arch/arm/mach-at91/Kconfig @@ -4,10 +4,22 @@ menuconfig ARCH_AT91 select ARCH_REQUIRE_GPIOLIB select COMMON_CLK_AT91 select PINCTRL - select PINCTRL_AT91 select SOC_BUS if ARCH_AT91 +config SOC_SAMA5D2 + bool "SAMA5D2 family" if ARCH_MULTI_V7 + select SOC_SAMA5 + select CACHE_L2X0 + select HAVE_FB_ATMEL + select HAVE_AT91_UTMI + select HAVE_AT91_USB_CLK + select HAVE_AT91_H32MX + select HAVE_AT91_GENERATED_CLK + select PINCTRL_AT91PIO4 + help + Select this if ou are using one of Atmel's SAMA5D2 family SoC. + config SOC_SAMA5D3 bool "SAMA5D3 family" if ARCH_MULTI_V7 select SOC_SAMA5 @@ -15,6 +27,7 @@ config SOC_SAMA5D3 select HAVE_AT91_UTMI select HAVE_AT91_SMD select HAVE_AT91_USB_CLK + select PINCTRL_AT91 help Select this if you are using one of Atmel's SAMA5D3 family SoC. This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35, SAMA5D36. @@ -28,6 +41,7 @@ config SOC_SAMA5D4 select HAVE_AT91_SMD select HAVE_AT91_USB_CLK select HAVE_AT91_H32MX + select PINCTRL_AT91 help Select this if you are using one of Atmel's SAMA5D4 family SoC. @@ -38,6 +52,7 @@ config SOC_AT91RM9200 select CPU_ARM920T select HAVE_AT91_USB_CLK select MIGHT_HAVE_PCI + select PINCTRL_AT91 select SOC_SAM_V4_V5 select SRAM if PM help @@ -53,6 +68,7 @@ config SOC_AT91SAM9 select HAVE_AT91_UTMI select HAVE_FB_ATMEL select MEMORY + select PINCTRL_AT91 select SOC_SAM_V4_V5 select SRAM if PM help @@ -83,6 +99,7 @@ config HAVE_AT91_USB_CLK config COMMON_CLK_AT91 bool select COMMON_CLK + select MFD_SYSCON config HAVE_AT91_SMD bool @@ -90,6 +107,9 @@ config HAVE_AT91_SMD config HAVE_AT91_H32MX bool +config HAVE_AT91_GENERATED_CLK + bool + config SOC_SAM_V4_V5 bool diff --git a/kernel/arch/arm/mach-at91/Makefile b/kernel/arch/arm/mach-at91/Makefile index 4fa8b4541..c5bbf8bb8 100644 --- a/kernel/arch/arm/mach-at91/Makefile +++ b/kernel/arch/arm/mach-at91/Makefile @@ -1,13 +1,8 @@ # # Makefile for the linux kernel. # -ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include -asflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include - obj-y := soc.o -obj-$(CONFIG_SOC_AT91SAM9) += sam9_smc.o - # CPU-specific support obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o diff --git a/kernel/arch/arm/mach-at91/Makefile.boot b/kernel/arch/arm/mach-at91/Makefile.boot deleted file mode 100644 index 29ed0fa37..000000000 --- a/kernel/arch/arm/mach-at91/Makefile.boot +++ /dev/null @@ -1,8 +0,0 @@ -# Note: the following conditions must always be true: -# ZRELADDR == virt_to_phys(TEXTADDR) -# PARAMS_PHYS must be within 4MB of ZRELADDR -# INITRD_PHYS must be in RAM - - zreladdr-y += 0x20008000 -params_phys-y := 0x20000100 -initrd_phys-y := 0x20410000 diff --git a/kernel/arch/arm/mach-at91/at91rm9200.c b/kernel/arch/arm/mach-at91/at91rm9200.c index eaf58f88e..63b4fa25b 100644 --- a/kernel/arch/arm/mach-at91/at91rm9200.c +++ b/kernel/arch/arm/mach-at91/at91rm9200.c @@ -8,12 +8,10 @@ * Licensed under GPLv2 or later. */ -#include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_platform.h> #include <asm/mach/arch.h> -#include <asm/system_misc.h> #include "generic.h" #include "soc.h" @@ -34,11 +32,10 @@ static void __init at91rm9200_dt_device_init(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, soc_dev); - arm_pm_idle = at91rm9200_idle; at91rm9200_pm_init(); } -static const char *at91rm9200_dt_board_compat[] __initconst = { +static const char *const at91rm9200_dt_board_compat[] __initconst = { "atmel,at91rm9200", NULL }; diff --git a/kernel/arch/arm/mach-at91/at91sam9.c b/kernel/arch/arm/mach-at91/at91sam9.c index e47a2093a..cada2a641 100644 --- a/kernel/arch/arm/mach-at91/at91sam9.c +++ b/kernel/arch/arm/mach-at91/at91sam9.c @@ -62,8 +62,6 @@ static void __init at91sam9_common_init(void) soc_dev = soc_device_to_device(soc); of_platform_populate(NULL, of_default_bus_match_table, NULL, soc_dev); - - arm_pm_idle = at91sam9_idle; } static void __init at91sam9_dt_device_init(void) @@ -72,7 +70,7 @@ static void __init at91sam9_dt_device_init(void) at91sam9260_pm_init(); } -static const char *at91_dt_board_compat[] __initconst = { +static const char *const at91_dt_board_compat[] __initconst = { "atmel,at91sam9", NULL }; @@ -89,7 +87,7 @@ static void __init at91sam9g45_dt_device_init(void) at91sam9g45_pm_init(); } -static const char *at91sam9g45_board_compat[] __initconst = { +static const char *const at91sam9g45_board_compat[] __initconst = { "atmel,at91sam9g45", NULL }; @@ -106,7 +104,7 @@ static void __init at91sam9x5_dt_device_init(void) at91sam9x5_pm_init(); } -static const char *at91sam9x5_board_compat[] __initconst = { +static const char *const at91sam9x5_board_compat[] __initconst = { "atmel,at91sam9x5", "atmel,at91sam9n12", NULL diff --git a/kernel/arch/arm/mach-at91/generic.h b/kernel/arch/arm/mach-at91/generic.h index b0fa7dc72..28ca57a20 100644 --- a/kernel/arch/arm/mach-at91/generic.h +++ b/kernel/arch/arm/mach-at91/generic.h @@ -11,27 +11,18 @@ #ifndef _AT91_GENERIC_H #define _AT91_GENERIC_H -#include <linux/of.h> -#include <linux/reboot.h> - - /* Map io */ -extern void __init at91_map_io(void); -extern void __init at91_alt_map_io(void); - -/* idle */ -extern void at91rm9200_idle(void); -extern void at91sam9_idle(void); - #ifdef CONFIG_PM extern void __init at91rm9200_pm_init(void); extern void __init at91sam9260_pm_init(void); extern void __init at91sam9g45_pm_init(void); extern void __init at91sam9x5_pm_init(void); +extern void __init sama5_pm_init(void); #else static inline void __init at91rm9200_pm_init(void) { } static inline void __init at91sam9260_pm_init(void) { } static inline void __init at91sam9g45_pm_init(void) { } static inline void __init at91sam9x5_pm_init(void) { } +static inline void __init sama5_pm_init(void) { } #endif #endif /* _AT91_GENERIC_H */ diff --git a/kernel/arch/arm/mach-at91/include/mach/at91_ramc.h b/kernel/arch/arm/mach-at91/include/mach/at91_ramc.h deleted file mode 100644 index 493bc486e..000000000 --- a/kernel/arch/arm/mach-at91/include/mach/at91_ramc.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Header file for the Atmel RAM Controller - * - * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> - * - * Under GPLv2 only - */ - -#ifndef __AT91_RAMC_H__ -#define __AT91_RAMC_H__ - -#ifndef __ASSEMBLY__ -extern void __iomem *at91_ramc_base[]; - -#define at91_ramc_read(id, field) \ - __raw_readl(at91_ramc_base[id] + field) - -#define at91_ramc_write(id, field, value) \ - __raw_writel(value, at91_ramc_base[id] + field) -#else -.extern at91_ramc_base -#endif - -#include <soc/at91/at91rm9200_sdramc.h> -#include <soc/at91/at91sam9_ddrsdr.h> -#include <soc/at91/at91sam9_sdramc.h> - -#endif /* __AT91_RAMC_H__ */ diff --git a/kernel/arch/arm/mach-at91/include/mach/at91rm9200_mc.h b/kernel/arch/arm/mach-at91/include/mach/at91rm9200_mc.h deleted file mode 100644 index aeaadfb45..000000000 --- a/kernel/arch/arm/mach-at91/include/mach/at91rm9200_mc.h +++ /dev/null @@ -1,116 +0,0 @@ -/* - * arch/arm/mach-at91/include/mach/at91rm9200_mc.h - * - * Copyright (C) 2005 Ivan Kokshaysky - * Copyright (C) SAN People - * - * Memory Controllers (MC, EBI, SMC, SDRAMC, BFC) - System peripherals registers. - * Based on AT91RM9200 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef AT91RM9200_MC_H -#define AT91RM9200_MC_H - -/* Memory Controller */ -#define AT91_MC_RCR 0x00 /* MC Remap Control Register */ -#define AT91_MC_RCB (1 << 0) /* Remap Command Bit */ - -#define AT91_MC_ASR 0x04 /* MC Abort Status Register */ -#define AT91_MC_UNADD (1 << 0) /* Undefined Address Abort Status */ -#define AT91_MC_MISADD (1 << 1) /* Misaligned Address Abort Status */ -#define AT91_MC_ABTSZ (3 << 8) /* Abort Size Status */ -#define AT91_MC_ABTSZ_BYTE (0 << 8) -#define AT91_MC_ABTSZ_HALFWORD (1 << 8) -#define AT91_MC_ABTSZ_WORD (2 << 8) -#define AT91_MC_ABTTYP (3 << 10) /* Abort Type Status */ -#define AT91_MC_ABTTYP_DATAREAD (0 << 10) -#define AT91_MC_ABTTYP_DATAWRITE (1 << 10) -#define AT91_MC_ABTTYP_FETCH (2 << 10) -#define AT91_MC_MST0 (1 << 16) /* ARM920T Abort Source */ -#define AT91_MC_MST1 (1 << 17) /* PDC Abort Source */ -#define AT91_MC_MST2 (1 << 18) /* UHP Abort Source */ -#define AT91_MC_MST3 (1 << 19) /* EMAC Abort Source */ -#define AT91_MC_SVMST0 (1 << 24) /* Saved ARM920T Abort Source */ -#define AT91_MC_SVMST1 (1 << 25) /* Saved PDC Abort Source */ -#define AT91_MC_SVMST2 (1 << 26) /* Saved UHP Abort Source */ -#define AT91_MC_SVMST3 (1 << 27) /* Saved EMAC Abort Source */ - -#define AT91_MC_AASR 0x08 /* MC Abort Address Status Register */ - -#define AT91_MC_MPR 0x0c /* MC Master Priority Register */ -#define AT91_MPR_MSTP0 (7 << 0) /* ARM920T Priority */ -#define AT91_MPR_MSTP1 (7 << 4) /* PDC Priority */ -#define AT91_MPR_MSTP2 (7 << 8) /* UHP Priority */ -#define AT91_MPR_MSTP3 (7 << 12) /* EMAC Priority */ - -/* External Bus Interface (EBI) registers */ -#define AT91_EBI_CSA 0x60 /* Chip Select Assignment Register */ -#define AT91_EBI_CS0A (1 << 0) /* Chip Select 0 Assignment */ -#define AT91_EBI_CS0A_SMC (0 << 0) -#define AT91_EBI_CS0A_BFC (1 << 0) -#define AT91_EBI_CS1A (1 << 1) /* Chip Select 1 Assignment */ -#define AT91_EBI_CS1A_SMC (0 << 1) -#define AT91_EBI_CS1A_SDRAMC (1 << 1) -#define AT91_EBI_CS3A (1 << 3) /* Chip Select 2 Assignment */ -#define AT91_EBI_CS3A_SMC (0 << 3) -#define AT91_EBI_CS3A_SMC_SMARTMEDIA (1 << 3) -#define AT91_EBI_CS4A (1 << 4) /* Chip Select 3 Assignment */ -#define AT91_EBI_CS4A_SMC (0 << 4) -#define AT91_EBI_CS4A_SMC_COMPACTFLASH (1 << 4) -#define AT91_EBI_CFGR (AT91_MC + 0x64) /* Configuration Register */ -#define AT91_EBI_DBPUC (1 << 0) /* Data Bus Pull-Up Configuration */ - -/* Static Memory Controller (SMC) registers */ -#define AT91_SMC_CSR(n) (0x70 + ((n) * 4)) /* SMC Chip Select Register */ -#define AT91_SMC_NWS (0x7f << 0) /* Number of Wait States */ -#define AT91_SMC_NWS_(x) ((x) << 0) -#define AT91_SMC_WSEN (1 << 7) /* Wait State Enable */ -#define AT91_SMC_TDF (0xf << 8) /* Data Float Time */ -#define AT91_SMC_TDF_(x) ((x) << 8) -#define AT91_SMC_BAT (1 << 12) /* Byte Access Type */ -#define AT91_SMC_DBW (3 << 13) /* Data Bus Width */ -#define AT91_SMC_DBW_16 (1 << 13) -#define AT91_SMC_DBW_8 (2 << 13) -#define AT91_SMC_DPR (1 << 15) /* Data Read Protocol */ -#define AT91_SMC_ACSS (3 << 16) /* Address to Chip Select Setup */ -#define AT91_SMC_ACSS_STD (0 << 16) -#define AT91_SMC_ACSS_1 (1 << 16) -#define AT91_SMC_ACSS_2 (2 << 16) -#define AT91_SMC_ACSS_3 (3 << 16) -#define AT91_SMC_RWSETUP (7 << 24) /* Read & Write Signal Time Setup */ -#define AT91_SMC_RWSETUP_(x) ((x) << 24) -#define AT91_SMC_RWHOLD (7 << 28) /* Read & Write Signal Hold Time */ -#define AT91_SMC_RWHOLD_(x) ((x) << 28) - -/* Burst Flash Controller register */ -#define AT91_BFC_MR 0xc0 /* Mode Register */ -#define AT91_BFC_BFCOM (3 << 0) /* Burst Flash Controller Operating Mode */ -#define AT91_BFC_BFCOM_DISABLED (0 << 0) -#define AT91_BFC_BFCOM_ASYNC (1 << 0) -#define AT91_BFC_BFCOM_BURST (2 << 0) -#define AT91_BFC_BFCC (3 << 2) /* Burst Flash Controller Clock */ -#define AT91_BFC_BFCC_MCK (1 << 2) -#define AT91_BFC_BFCC_DIV2 (2 << 2) -#define AT91_BFC_BFCC_DIV4 (3 << 2) -#define AT91_BFC_AVL (0xf << 4) /* Address Valid Latency */ -#define AT91_BFC_PAGES (7 << 8) /* Page Size */ -#define AT91_BFC_PAGES_NO_PAGE (0 << 8) -#define AT91_BFC_PAGES_16 (1 << 8) -#define AT91_BFC_PAGES_32 (2 << 8) -#define AT91_BFC_PAGES_64 (3 << 8) -#define AT91_BFC_PAGES_128 (4 << 8) -#define AT91_BFC_PAGES_256 (5 << 8) -#define AT91_BFC_PAGES_512 (6 << 8) -#define AT91_BFC_PAGES_1024 (7 << 8) -#define AT91_BFC_OEL (3 << 12) /* Output Enable Latency */ -#define AT91_BFC_BAAEN (1 << 16) /* Burst Address Advance Enable */ -#define AT91_BFC_BFOEH (1 << 17) /* Burst Flash Output Enable Handling */ -#define AT91_BFC_MUXEN (1 << 18) /* Multiplexed Bus Enable */ -#define AT91_BFC_RDYEN (1 << 19) /* Ready Enable Mode */ - -#endif diff --git a/kernel/arch/arm/mach-at91/include/mach/at91sam9_smc.h b/kernel/arch/arm/mach-at91/include/mach/at91sam9_smc.h deleted file mode 100644 index ff54a0ce9..000000000 --- a/kernel/arch/arm/mach-at91/include/mach/at91sam9_smc.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * arch/arm/mach-at91/include/mach/at91sam9_smc.h - * - * Copyright (C) 2007 Andrew Victor - * Copyright (C) 2007 Atmel Corporation. - * - * Static Memory Controllers (SMC) - System peripherals registers. - * Based on AT91SAM9261 datasheet revision D. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef AT91SAM9_SMC_H -#define AT91SAM9_SMC_H - -#ifndef __ASSEMBLY__ -struct sam9_smc_config { - /* Setup register */ - u8 ncs_read_setup; - u8 nrd_setup; - u8 ncs_write_setup; - u8 nwe_setup; - - /* Pulse register */ - u8 ncs_read_pulse; - u8 nrd_pulse; - u8 ncs_write_pulse; - u8 nwe_pulse; - - /* Cycle register */ - u16 read_cycle; - u16 write_cycle; - - /* Mode register */ - u32 mode; - u8 tdf_cycles:4; -}; - -extern void sam9_smc_configure(int id, int cs, struct sam9_smc_config *config); -extern void sam9_smc_read(int id, int cs, struct sam9_smc_config *config); -extern void sam9_smc_read_mode(int id, int cs, struct sam9_smc_config *config); -extern void sam9_smc_write_mode(int id, int cs, struct sam9_smc_config *config); -#endif - -#define AT91_SMC_SETUP 0x00 /* Setup Register for CS n */ -#define AT91_SMC_NWESETUP (0x3f << 0) /* NWE Setup Length */ -#define AT91_SMC_NWESETUP_(x) ((x) << 0) -#define AT91_SMC_NCS_WRSETUP (0x3f << 8) /* NCS Setup Length in Write Access */ -#define AT91_SMC_NCS_WRSETUP_(x) ((x) << 8) -#define AT91_SMC_NRDSETUP (0x3f << 16) /* NRD Setup Length */ -#define AT91_SMC_NRDSETUP_(x) ((x) << 16) -#define AT91_SMC_NCS_RDSETUP (0x3f << 24) /* NCS Setup Length in Read Access */ -#define AT91_SMC_NCS_RDSETUP_(x) ((x) << 24) - -#define AT91_SMC_PULSE 0x04 /* Pulse Register for CS n */ -#define AT91_SMC_NWEPULSE (0x7f << 0) /* NWE Pulse Length */ -#define AT91_SMC_NWEPULSE_(x) ((x) << 0) -#define AT91_SMC_NCS_WRPULSE (0x7f << 8) /* NCS Pulse Length in Write Access */ -#define AT91_SMC_NCS_WRPULSE_(x)((x) << 8) -#define AT91_SMC_NRDPULSE (0x7f << 16) /* NRD Pulse Length */ -#define AT91_SMC_NRDPULSE_(x) ((x) << 16) -#define AT91_SMC_NCS_RDPULSE (0x7f << 24) /* NCS Pulse Length in Read Access */ -#define AT91_SMC_NCS_RDPULSE_(x)((x) << 24) - -#define AT91_SMC_CYCLE 0x08 /* Cycle Register for CS n */ -#define AT91_SMC_NWECYCLE (0x1ff << 0 ) /* Total Write Cycle Length */ -#define AT91_SMC_NWECYCLE_(x) ((x) << 0) -#define AT91_SMC_NRDCYCLE (0x1ff << 16) /* Total Read Cycle Length */ -#define AT91_SMC_NRDCYCLE_(x) ((x) << 16) - -#define AT91_SMC_MODE 0x0c /* Mode Register for CS n */ -#define AT91_SMC_READMODE (1 << 0) /* Read Mode */ -#define AT91_SMC_WRITEMODE (1 << 1) /* Write Mode */ -#define AT91_SMC_EXNWMODE (3 << 4) /* NWAIT Mode */ -#define AT91_SMC_EXNWMODE_DISABLE (0 << 4) -#define AT91_SMC_EXNWMODE_FROZEN (2 << 4) -#define AT91_SMC_EXNWMODE_READY (3 << 4) -#define AT91_SMC_BAT (1 << 8) /* Byte Access Type */ -#define AT91_SMC_BAT_SELECT (0 << 8) -#define AT91_SMC_BAT_WRITE (1 << 8) -#define AT91_SMC_DBW (3 << 12) /* Data Bus Width */ -#define AT91_SMC_DBW_8 (0 << 12) -#define AT91_SMC_DBW_16 (1 << 12) -#define AT91_SMC_DBW_32 (2 << 12) -#define AT91_SMC_TDF (0xf << 16) /* Data Float Time. */ -#define AT91_SMC_TDF_(x) ((x) << 16) -#define AT91_SMC_TDFMODE (1 << 20) /* TDF Optimization - Enabled */ -#define AT91_SMC_PMEN (1 << 24) /* Page Mode Enabled */ -#define AT91_SMC_PS (3 << 28) /* Page Size */ -#define AT91_SMC_PS_4 (0 << 28) -#define AT91_SMC_PS_8 (1 << 28) -#define AT91_SMC_PS_16 (2 << 28) -#define AT91_SMC_PS_32 (3 << 28) - -#endif diff --git a/kernel/arch/arm/mach-at91/pm.c b/kernel/arch/arm/mach-at91/pm.c index 5062699cb..f06270198 100644 --- a/kernel/arch/arm/mach-at91/pm.c +++ b/kernel/arch/arm/mach-at91/pm.c @@ -31,18 +31,23 @@ #include <asm/mach/irq.h> #include <asm/fncpy.h> #include <asm/cacheflush.h> +#include <asm/system_misc.h> #include "generic.h" #include "pm.h" +static void __iomem *pmc; + /* * FIXME: this is needed to communicate between the pinctrl driver and * the PM implementation in the machine. Possibly part of the PM * implementation should be moved down into the pinctrl driver and get * called as part of the generic suspend/resume path. */ +#ifdef CONFIG_PINCTRL_AT91 extern void at91_pinctrl_gpio_suspend(void); extern void at91_pinctrl_gpio_resume(void); +#endif static struct { unsigned long uhp_udp_mask; @@ -85,7 +90,7 @@ static int at91_pm_verify_clocks(void) unsigned long scsr; int i; - scsr = at91_pmc_read(AT91_PMC_SCSR); + scsr = readl(pmc + AT91_PMC_SCSR); /* USB must not be using PLLB */ if ((scsr & at91_pm_data.uhp_udp_mask) != 0) { @@ -99,8 +104,7 @@ static int at91_pm_verify_clocks(void) if ((scsr & (AT91_PMC_PCK0 << i)) == 0) continue; - - css = at91_pmc_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS; + css = readl(pmc + AT91_PMC_PCKR(i)) & AT91_PMC_CSS; if (css != AT91_PMC_CSS_SLOW) { pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css); return 0; @@ -143,16 +147,17 @@ static void at91_pm_suspend(suspend_state_t state) flush_cache_all(); outer_disable(); - at91_suspend_sram_fn(at91_pmc_base, at91_ramc_base[0], - at91_ramc_base[1], pm_data); + at91_suspend_sram_fn(pmc, at91_ramc_base[0], + at91_ramc_base[1], pm_data); outer_resume(); } static int at91_pm_enter(suspend_state_t state) { +#ifdef CONFIG_PINCTRL_AT91 at91_pinctrl_gpio_suspend(); - +#endif switch (state) { /* * Suspend-to-RAM is like STANDBY plus slow clock mode, so @@ -192,7 +197,9 @@ static int at91_pm_enter(suspend_state_t state) error: target_state = PM_SUSPEND_ON; +#ifdef CONFIG_PINCTRL_AT91 at91_pinctrl_gpio_resume(); +#endif return 0; } @@ -233,7 +240,7 @@ static void at91_pm_set_standby(void (*at91_standby)(void)) */ static void at91rm9200_standby(void) { - u32 lpr = at91_ramc_read(0, AT91RM9200_SDRAMC_LPR); + u32 lpr = at91_ramc_read(0, AT91_MC_SDRAMC_LPR); asm volatile( "b 1f\n\t" @@ -244,8 +251,8 @@ static void at91rm9200_standby(void) " mcr p15, 0, %0, c7, c0, 4\n\t" " str %5, [%1, %2]" : - : "r" (0), "r" (at91_ramc_base[0]), "r" (AT91RM9200_SDRAMC_LPR), - "r" (1), "r" (AT91RM9200_SDRAMC_SRR), + : "r" (0), "r" (at91_ramc_base[0]), "r" (AT91_MC_SDRAMC_LPR), + "r" (1), "r" (AT91_MC_SDRAMC_SRR), "r" (lpr)); } @@ -311,7 +318,7 @@ static void at91sam9_sdram_standby(void) at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1); } -static const struct of_device_id ramc_ids[] __initconst = { +static const struct of_device_id const ramc_ids[] __initconst = { { .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby }, { .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby }, { .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby }, @@ -348,6 +355,21 @@ static __init void at91_dt_ramc(void) at91_pm_set_standby(standby); } +void at91rm9200_idle(void) +{ + /* + * Disable the processor clock. The processor will be automatically + * re-enabled by an interrupt or by a reset. + */ + writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR); +} + +void at91sam9_idle(void) +{ + writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR); + cpu_do_idle(); +} + static void __init at91_pm_sram_init(void) { struct gen_pool *sram_pool; @@ -369,7 +391,7 @@ static void __init at91_pm_sram_init(void) return; } - sram_pool = dev_get_gen_pool(&pdev->dev); + sram_pool = gen_pool_get(&pdev->dev, NULL); if (!sram_pool) { pr_warn("%s: sram pool unavailable!\n", __func__); return; @@ -394,13 +416,36 @@ static void __init at91_pm_sram_init(void) &at91_pm_suspend_in_sram, at91_pm_suspend_in_sram_sz); } -static void __init at91_pm_init(void) +static const struct of_device_id atmel_pmc_ids[] __initconst = { + { .compatible = "atmel,at91rm9200-pmc" }, + { .compatible = "atmel,at91sam9260-pmc" }, + { .compatible = "atmel,at91sam9g45-pmc" }, + { .compatible = "atmel,at91sam9n12-pmc" }, + { .compatible = "atmel,at91sam9x5-pmc" }, + { .compatible = "atmel,sama5d3-pmc" }, + { .compatible = "atmel,sama5d2-pmc" }, + { /* sentinel */ }, +}; + +static void __init at91_pm_init(void (*pm_idle)(void)) { - at91_pm_sram_init(); + struct device_node *pmc_np; if (at91_cpuidle_device.dev.platform_data) platform_device_register(&at91_cpuidle_device); + pmc_np = of_find_matching_node(NULL, atmel_pmc_ids); + pmc = of_iomap(pmc_np, 0); + if (!pmc) { + pr_err("AT91: PM not supported, PMC not found\n"); + return; + } + + if (pm_idle) + arm_pm_idle = pm_idle; + + at91_pm_sram_init(); + if (at91_suspend_sram_fn) suspend_set_ops(&at91_pm_ops); else @@ -414,12 +459,12 @@ void __init at91rm9200_pm_init(void) /* * AT91RM9200 SDRAM low-power mode cannot be used with self-refresh. */ - at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0); + at91_ramc_write(0, AT91_MC_SDRAMC_LPR, 0); at91_pm_data.uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP; at91_pm_data.memctrl = AT91_MEMCTRL_MC; - at91_pm_init(); + at91_pm_init(at91rm9200_idle); } void __init at91sam9260_pm_init(void) @@ -427,7 +472,7 @@ void __init at91sam9260_pm_init(void) at91_dt_ramc(); at91_pm_data.memctrl = AT91_MEMCTRL_SDRAMC; at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; - return at91_pm_init(); + at91_pm_init(at91sam9_idle); } void __init at91sam9g45_pm_init(void) @@ -435,7 +480,7 @@ void __init at91sam9g45_pm_init(void) at91_dt_ramc(); at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP; at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; - return at91_pm_init(); + at91_pm_init(at91sam9_idle); } void __init at91sam9x5_pm_init(void) @@ -443,5 +488,13 @@ void __init at91sam9x5_pm_init(void) at91_dt_ramc(); at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; - return at91_pm_init(); + at91_pm_init(at91sam9_idle); +} + +void __init sama5_pm_init(void) +{ + at91_dt_ramc(); + at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; + at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; + at91_pm_init(NULL); } diff --git a/kernel/arch/arm/mach-at91/pm.h b/kernel/arch/arm/mach-at91/pm.h index ecd875a91..3fcf8810f 100644 --- a/kernel/arch/arm/mach-at91/pm.h +++ b/kernel/arch/arm/mach-at91/pm.h @@ -13,7 +13,19 @@ #include <asm/proc-fns.h> -#include <mach/at91_ramc.h> +#include <linux/mfd/syscon/atmel-mc.h> +#include <soc/at91/at91sam9_ddrsdr.h> +#include <soc/at91/at91sam9_sdramc.h> + +#ifndef __ASSEMBLY__ +extern void __iomem *at91_ramc_base[]; + +#define at91_ramc_read(id, field) \ + __raw_readl(at91_ramc_base[id] + field) + +#define at91_ramc_write(id, field, value) \ + __raw_writel(value, at91_ramc_base[id] + field) +#endif #define AT91_MEMCTRL_MC 0 #define AT91_MEMCTRL_SDRAMC 1 diff --git a/kernel/arch/arm/mach-at91/pm_suspend.S b/kernel/arch/arm/mach-at91/pm_suspend.S index bd22b2c8a..a25defda3 100644 --- a/kernel/arch/arm/mach-at91/pm_suspend.S +++ b/kernel/arch/arm/mach-at91/pm_suspend.S @@ -13,7 +13,6 @@ */ #include <linux/linkage.h> #include <linux/clk/at91_pmc.h> -#include <mach/at91_ramc.h> #include "pm.h" #define SRAMC_SELF_FRESH_ACTIVE 0x01 @@ -81,6 +80,8 @@ tmp2 .req r5 * @r2: base address of second SDRAM Controller or 0 if not present * @r3: pm information */ +/* at91_pm_suspend_in_sram must be 8-byte aligned per the requirements of fncpy() */ + .align 3 ENTRY(at91_pm_suspend_in_sram) /* Save registers on stack */ stmfd sp!, {r4 - r12, lr} @@ -216,7 +217,7 @@ ENTRY(at91_sramc_self_refresh) /* Active SDRAM self-refresh mode */ mov r3, #1 - str r3, [r2, #AT91RM9200_SDRAMC_SRR] + str r3, [r2, #AT91_MC_SDRAMC_SRR] b exit_sramc_sf ddrc_sf: diff --git a/kernel/arch/arm/mach-at91/sam9_smc.c b/kernel/arch/arm/mach-at91/sam9_smc.c deleted file mode 100644 index 826315af6..000000000 --- a/kernel/arch/arm/mach-at91/sam9_smc.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * linux/arch/arm/mach-at91/sam9_smc.c - * - * Copyright (C) 2008 Andrew Victor - * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.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/module.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_address.h> - -#include <mach/at91sam9_smc.h> - -#include "sam9_smc.h" - - -#define AT91_SMC_CS(id, n) (smc_base_addr[id] + ((n) * 0x10)) - -static void __iomem *smc_base_addr[2]; - -static void sam9_smc_cs_write_mode(void __iomem *base, - struct sam9_smc_config *config) -{ - __raw_writel(config->mode - | AT91_SMC_TDF_(config->tdf_cycles), - base + AT91_SMC_MODE); -} - -void sam9_smc_write_mode(int id, int cs, - struct sam9_smc_config *config) -{ - sam9_smc_cs_write_mode(AT91_SMC_CS(id, cs), config); -} -EXPORT_SYMBOL_GPL(sam9_smc_write_mode); - -static void sam9_smc_cs_configure(void __iomem *base, - struct sam9_smc_config *config) -{ - - /* Setup register */ - __raw_writel(AT91_SMC_NWESETUP_(config->nwe_setup) - | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup) - | AT91_SMC_NRDSETUP_(config->nrd_setup) - | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup), - base + AT91_SMC_SETUP); - - /* Pulse register */ - __raw_writel(AT91_SMC_NWEPULSE_(config->nwe_pulse) - | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse) - | AT91_SMC_NRDPULSE_(config->nrd_pulse) - | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse), - base + AT91_SMC_PULSE); - - /* Cycle register */ - __raw_writel(AT91_SMC_NWECYCLE_(config->write_cycle) - | AT91_SMC_NRDCYCLE_(config->read_cycle), - base + AT91_SMC_CYCLE); - - /* Mode register */ - sam9_smc_cs_write_mode(base, config); -} - -void sam9_smc_configure(int id, int cs, - struct sam9_smc_config *config) -{ - sam9_smc_cs_configure(AT91_SMC_CS(id, cs), config); -} -EXPORT_SYMBOL_GPL(sam9_smc_configure); - -static void sam9_smc_cs_read_mode(void __iomem *base, - struct sam9_smc_config *config) -{ - u32 val = __raw_readl(base + AT91_SMC_MODE); - - config->mode = (val & ~AT91_SMC_NWECYCLE); - config->tdf_cycles = (val & AT91_SMC_NWECYCLE) >> 16 ; -} - -void sam9_smc_read_mode(int id, int cs, - struct sam9_smc_config *config) -{ - sam9_smc_cs_read_mode(AT91_SMC_CS(id, cs), config); -} -EXPORT_SYMBOL_GPL(sam9_smc_read_mode); - -static void sam9_smc_cs_read(void __iomem *base, - struct sam9_smc_config *config) -{ - u32 val; - - /* Setup register */ - val = __raw_readl(base + AT91_SMC_SETUP); - - config->nwe_setup = val & AT91_SMC_NWESETUP; - config->ncs_write_setup = (val & AT91_SMC_NCS_WRSETUP) >> 8; - config->nrd_setup = (val & AT91_SMC_NRDSETUP) >> 16; - config->ncs_read_setup = (val & AT91_SMC_NCS_RDSETUP) >> 24; - - /* Pulse register */ - val = __raw_readl(base + AT91_SMC_PULSE); - - config->nwe_pulse = val & AT91_SMC_NWEPULSE; - config->ncs_write_pulse = (val & AT91_SMC_NCS_WRPULSE) >> 8; - config->nrd_pulse = (val & AT91_SMC_NRDPULSE) >> 16; - config->ncs_read_pulse = (val & AT91_SMC_NCS_RDPULSE) >> 24; - - /* Cycle register */ - val = __raw_readl(base + AT91_SMC_CYCLE); - - config->write_cycle = val & AT91_SMC_NWECYCLE; - config->read_cycle = (val & AT91_SMC_NRDCYCLE) >> 16; - - /* Mode register */ - sam9_smc_cs_read_mode(base, config); -} - -void sam9_smc_read(int id, int cs, struct sam9_smc_config *config) -{ - sam9_smc_cs_read(AT91_SMC_CS(id, cs), config); -} - -void __init at91sam9_ioremap_smc(int id, u32 addr) -{ - if (id > 1) { - pr_warn("%s: id > 2\n", __func__); - return; - } - smc_base_addr[id] = ioremap(addr, 512); - if (!smc_base_addr[id]) - pr_warn("Impossible to ioremap smc.%d 0x%x\n", id, addr); -} diff --git a/kernel/arch/arm/mach-at91/sam9_smc.h b/kernel/arch/arm/mach-at91/sam9_smc.h deleted file mode 100644 index 3e52dcd4a..000000000 --- a/kernel/arch/arm/mach-at91/sam9_smc.h +++ /dev/null @@ -1,11 +0,0 @@ -/* - * linux/arch/arm/mach-at91/sam9_smc. - * - * Copyright (C) 2008 Andrew Victor - * - * 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. - */ - -extern void __init at91sam9_ioremap_smc(int id, u32 addr); diff --git a/kernel/arch/arm/mach-at91/sama5.c b/kernel/arch/arm/mach-at91/sama5.c index 41d829d8e..df8fdf1cf 100644 --- a/kernel/arch/arm/mach-at91/sama5.c +++ b/kernel/arch/arm/mach-at91/sama5.c @@ -18,6 +18,8 @@ #include "soc.h" static const struct at91_soc sama5_socs[] = { + AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27_EXID_MATCH, + "sama5d27", "sama5d2"), AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH, "sama5d31", "sama5d3"), AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH, @@ -49,10 +51,10 @@ static void __init sama5_dt_device_init(void) soc_dev = soc_device_to_device(soc); of_platform_populate(NULL, of_default_bus_match_table, NULL, soc_dev); - at91sam9x5_pm_init(); + sama5_pm_init(); } -static const char *sama5_dt_board_compat[] __initconst = { +static const char *const sama5_dt_board_compat[] __initconst = { "atmel,sama5", NULL }; @@ -63,7 +65,8 @@ DT_MACHINE_START(sama5_dt, "Atmel SAMA5") .dt_compat = sama5_dt_board_compat, MACHINE_END -static const char *sama5_alt_dt_board_compat[] __initconst = { +static const char *const sama5_alt_dt_board_compat[] __initconst = { + "atmel,sama5d2", "atmel,sama5d4", NULL }; diff --git a/kernel/arch/arm/mach-at91/soc.h b/kernel/arch/arm/mach-at91/soc.h index be23c4005..8ede0ef86 100644 --- a/kernel/arch/arm/mach-at91/soc.h +++ b/kernel/arch/arm/mach-at91/soc.h @@ -62,6 +62,9 @@ at91_soc_init(const struct at91_soc *socs); #define AT91SAM9XE256_CIDR_MATCH 0x329a93a0 #define AT91SAM9XE512_CIDR_MATCH 0x329aa3a0 +#define SAMA5D2_CIDR_MATCH 0x0a5c08c0 +#define SAMA5D27_EXID_MATCH 0x00000021 + #define SAMA5D3_CIDR_MATCH 0x0a5c07c0 #define SAMA5D31_EXID_MATCH 0x00444300 #define SAMA5D33_EXID_MATCH 0x00414300 |