diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-ux500/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db5500.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db8500.c | 7 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/cpu.c | 7 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/cpufreq.c | 211 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/db5500-regs.h | 20 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/db8500-regs.h | 37 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/hardware.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/id.h | 20 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/irqs-board-mop500.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/irqs-board-u5500.h | 21 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/irqs-db5500.h | 27 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/irqs-db8500.h | 54 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/irqs.h | 46 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/prcmu-defs.h | 30 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/prcmu-regs.h | 96 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/prcmu.h | 28 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/prcmu.c | 394 |
19 files changed, 218 insertions, 795 deletions
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 5862601..54429d0 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -12,9 +12,12 @@ menu "Ux500 SoC" config UX500_SOC_DB5500 bool "DB5500" + select MFD_DB5500_PRCMU config UX500_SOC_DB8500 bool "DB8500" + select MFD_DB8500_PRCMU + select REGULATOR_DB8500_PRCMU endmenu diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile index b549a8f..1694916 100644 --- a/arch/arm/mach-ux500/Makefile +++ b/arch/arm/mach-ux500/Makefile @@ -5,7 +5,7 @@ obj-y := clock.o cpu.o devices.o devices-common.o \ id.o usb.o obj-$(CONFIG_UX500_SOC_DB5500) += cpu-db5500.o dma-db5500.o -obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o prcmu.o +obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o obj-$(CONFIG_MACH_U8500) += board-mop500.o board-mop500-sdi.o \ board-mop500-regulators.o \ board-mop500-uib.o board-mop500-stuib.o \ @@ -17,4 +17,4 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o obj-$(CONFIG_U5500_MODEM_IRQ) += modem-irq-db5500.o obj-$(CONFIG_U5500_MBOX) += mbox-db5500.o -obj-$(CONFIG_CPU_FREQ) += cpufreq.o + diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c index c9dc2ef..c01bc19 100644 --- a/arch/arm/mach-ux500/cpu-db5500.c +++ b/arch/arm/mach-ux500/cpu-db5500.c @@ -188,6 +188,8 @@ void __init u5500_map_io(void) ux500_map_io(); iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc)); + + _PRCMU_BASE = __io_address(U5500_PRCMU_BASE); } static int usb_db5500_rx_dma_cfg[] = { diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 516126c..c3c4176 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -87,6 +87,8 @@ void __init u8500_map_io(void) iotable_init(u8500_v1_io_desc, ARRAY_SIZE(u8500_v1_io_desc)); else if (cpu_is_u8500v2()) iotable_init(u8500_v2_io_desc, ARRAY_SIZE(u8500_v2_io_desc)); + + _PRCMU_BASE = __io_address(U8500_PRCMU_BASE); } static struct resource db8500_pmu_resources[] = { @@ -129,9 +131,14 @@ static struct platform_device db8500_pmu_device = { .dev.platform_data = &db8500_pmu_platdata, }; +static struct platform_device db8500_prcmu_device = { + .name = "db8500-prcmu", +}; + static struct platform_device *platform_devs[] __initdata = { &u8500_dma40_device, &db8500_pmu_device, + &db8500_prcmu_device, }; static resource_size_t __initdata db8500_gpio_base[] = { diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index 5a43107..1da23bb 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -8,6 +8,8 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/clk.h> +#include <linux/mfd/db8500-prcmu.h> +#include <linux/mfd/db5500-prcmu.h> #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> @@ -19,10 +21,11 @@ #include <mach/hardware.h> #include <mach/setup.h> #include <mach/devices.h> -#include <mach/prcmu.h> #include "clock.h" +void __iomem *_PRCMU_BASE; + #ifdef CONFIG_CACHE_L2X0 static void __iomem *l2x0_base; #endif @@ -47,6 +50,8 @@ void __init ux500_init_irq(void) * Init clocks here so that they are available for system timer * initialization. */ + if (cpu_is_u5500()) + db5500_prcmu_early_init(); if (cpu_is_u8500()) prcmu_early_init(); clk_init(); diff --git a/arch/arm/mach-ux500/cpufreq.c b/arch/arm/mach-ux500/cpufreq.c deleted file mode 100644 index 5c5b747..0000000 --- a/arch/arm/mach-ux500/cpufreq.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * CPU frequency scaling for u8500 - * Inspired by linux/arch/arm/mach-davinci/cpufreq.c - * - * Copyright (C) STMicroelectronics 2009 - * Copyright (C) ST-Ericsson SA 2010 - * - * License Terms: GNU General Public License v2 - * - * Author: Sundar Iyer <sundar.iyer@stericsson.com> - * Author: Martin Persson <martin.persson@stericsson.com> - * Author: Jonas Aaberg <jonas.aberg@stericsson.com> - * - */ - -#include <linux/platform_device.h> -#include <linux/kernel.h> -#include <linux/cpufreq.h> -#include <linux/delay.h> - -#include <mach/hardware.h> -#include <mach/prcmu.h> -#include <mach/prcmu-defs.h> - -#define DRIVER_NAME "cpufreq-u8500" -#define CPUFREQ_NAME "u8500" - -static struct device *dev; - -static struct cpufreq_frequency_table freq_table[] = { - [0] = { - .index = 0, - .frequency = 200000, - }, - [1] = { - .index = 1, - .frequency = 300000, - }, - [2] = { - .index = 2, - .frequency = 600000, - }, - [3] = { - /* Used for CPU_OPP_MAX, if available */ - .index = 3, - .frequency = CPUFREQ_TABLE_END, - }, - [4] = { - .index = 4, - .frequency = CPUFREQ_TABLE_END, - }, -}; - -static enum prcmu_cpu_opp index2opp[] = { - CPU_OPP_EXT_CLK, - CPU_OPP_50, - CPU_OPP_100, - CPU_OPP_MAX -}; - -static int u8500_cpufreq_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - -static int u8500_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct cpufreq_freqs freqs; - unsigned int index; - int ret = 0; - - /* - * Ensure desired rate is within allowed range. Some govenors - * (ondemand) will just pass target_freq=0 to get the minimum. - */ - if (target_freq < policy->cpuinfo.min_freq) - target_freq = policy->cpuinfo.min_freq; - if (target_freq > policy->cpuinfo.max_freq) - target_freq = policy->cpuinfo.max_freq; - - ret = cpufreq_frequency_table_target(policy, freq_table, - target_freq, relation, &index); - if (ret < 0) { - dev_err(dev, "Could not look up next frequency\n"); - return ret; - } - - freqs.old = policy->cur; - freqs.new = freq_table[index].frequency; - freqs.cpu = policy->cpu; - - if (freqs.old == freqs.new) { - dev_dbg(dev, "Current and target frequencies are equal\n"); - return 0; - } - - dev_dbg(dev, "transition: %u --> %u\n", freqs.old, freqs.new); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - ret = prcmu_set_cpu_opp(index2opp[index]); - if (ret < 0) { - dev_err(dev, "Failed to set OPP level\n"); - return ret; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return ret; -} - -static unsigned int u8500_cpufreq_getspeed(unsigned int cpu) -{ - int i; - - for (i = 0; prcmu_get_cpu_opp() != index2opp[i]; i++) - ; - return freq_table[i].frequency; -} - -static int __cpuinit u8500_cpu_init(struct cpufreq_policy *policy) -{ - int res; - - BUILD_BUG_ON(ARRAY_SIZE(index2opp) + 1 != ARRAY_SIZE(freq_table)); - - if (cpu_is_u8500v2()) { - freq_table[1].frequency = 400000; - freq_table[2].frequency = 800000; - if (prcmu_has_arm_maxopp()) - freq_table[3].frequency = 1000000; - } - - /* get policy fields based on the table */ - res = cpufreq_frequency_table_cpuinfo(policy, freq_table); - if (!res) - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - else { - dev_err(dev, "u8500-cpufreq : Failed to read policy table\n"); - return res; - } - - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; - policy->cur = u8500_cpufreq_getspeed(policy->cpu); - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - - /* - * FIXME : Need to take time measurement across the target() - * function with no/some/all drivers in the notification - * list. - */ - policy->cpuinfo.transition_latency = 200 * 1000; /* in ns */ - - /* policy sharing between dual CPUs */ - cpumask_copy(policy->cpus, &cpu_present_map); - - policy->shared_type = CPUFREQ_SHARED_TYPE_ALL; - - return res; -} - -static struct freq_attr *u8500_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; -static int u8500_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct cpufreq_driver u8500_driver = { - .owner = THIS_MODULE, - .flags = CPUFREQ_STICKY, - .verify = u8500_cpufreq_verify_speed, - .target = u8500_cpufreq_target, - .get = u8500_cpufreq_getspeed, - .init = u8500_cpu_init, - .exit = u8500_cpu_exit, - .name = CPUFREQ_NAME, - .attr = u8500_cpufreq_attr, -}; - -static int __init u8500_cpufreq_probe(struct platform_device *pdev) -{ - dev = &pdev->dev; - return cpufreq_register_driver(&u8500_driver); -} - -static int __exit u8500_cpufreq_remove(struct platform_device *pdev) -{ - return cpufreq_unregister_driver(&u8500_driver); -} - -static struct platform_driver u8500_cpufreq_driver = { - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .remove = __exit_p(u8500_cpufreq_remove), -}; - -static int __init u8500_cpufreq_init(void) -{ - return platform_driver_probe(&u8500_cpufreq_driver, - &u8500_cpufreq_probe); -} - -device_initcall(u8500_cpufreq_init); diff --git a/arch/arm/mach-ux500/include/mach/db5500-regs.h b/arch/arm/mach-ux500/include/mach/db5500-regs.h index bd88c1e..6ad9832 100644 --- a/arch/arm/mach-ux500/include/mach/db5500-regs.h +++ b/arch/arm/mach-ux500/include/mach/db5500-regs.h @@ -17,6 +17,8 @@ #define U5500_GIC_DIST_BASE 0xA0411000 #define U5500_GIC_CPU_BASE 0xA0410100 #define U5500_DMA_BASE 0x90030000 +#define U5500_STM_BASE 0x90020000 +#define U5500_STM_REG_BASE (U5500_STM_BASE + 0xF000) #define U5500_MCDE_BASE 0xA0400000 #define U5500_MODEM_BASE 0xB0000000 #define U5500_L2CC_BASE 0xA0412000 @@ -29,7 +31,9 @@ #define U5500_NAND0_BASE 0x60000000 #define U5500_NAND1_BASE 0x70000000 #define U5500_TWD_BASE 0xa0410600 +#define U5500_ICN_BASE 0xA0040000 #define U5500_B2R2_BASE 0xa0200000 +#define U5500_BOOT_ROM_BASE 0x90000000 #define U5500_FSMC_BASE (U5500_PER1_BASE + 0x0000) #define U5500_SDI0_BASE (U5500_PER1_BASE + 0x1000) @@ -60,6 +64,7 @@ #define U5500_MSP1_BASE (U5500_PER4_BASE + 0x9000) #define U5500_GPIO2_BASE (U5500_PER4_BASE + 0xA000) #define U5500_CDETECT_BASE (U5500_PER4_BASE + 0xF000) +#define U5500_PRCMU_TCDM_BASE (U5500_PER4_BASE + 0x18000) #define U5500_SPI0_BASE (U5500_PER5_BASE + 0x0000) #define U5500_SPI1_BASE (U5500_PER5_BASE + 0x1000) @@ -83,7 +88,7 @@ #define U5500_HASH0_BASE (U5500_PER6_BASE + 0x1000) #define U5500_HASH1_BASE (U5500_PER6_BASE + 0x2000) #define U5500_PKA_BASE (U5500_PER6_BASE + 0x4000) -#define U5500_PKAM_BASE (U5500_PER6_BASE + 0x5000) +#define U5500_PKAM_BASE (U5500_PER6_BASE + 0x5100) #define U5500_MTU0_BASE (U5500_PER6_BASE + 0x6000) #define U5500_MTU1_BASE (U5500_PER6_BASE + 0x7000) #define U5500_CR_BASE (U5500_PER6_BASE + 0x8000) @@ -114,8 +119,19 @@ #define U5500_MBOX2_LOCAL_START (U5500_MBOX_BASE + 0x20) #define U5500_MBOX2_LOCAL_END (U5500_MBOX_BASE + 0x3F) -#define U5500_ESRAM_BASE 0x40000000 +#define U5500_ACCCON_BASE_SEC (0xBFFF0000) +#define U5500_ACCCON_BASE (0xBFFF1000) +#define U5500_ACCCON_CPUVEC_RESET_ADDR_OFFSET (0x00000020) +#define U5500_ACCCON_ACC_CPU_CTRL_OFFSET (0x000000BC) + +#define U5500_ESRAM_BASE 0x40000000 #define U5500_ESRAM_DMA_LCPA_OFFSET 0x10000 #define U5500_DMA_LCPA_BASE (U5500_ESRAM_BASE + U5500_ESRAM_DMA_LCPA_OFFSET) +#define U5500_MCDE_SIZE 0x1000 +#define U5500_DSI_LINK_SIZE 0x1000 +#define U5500_DSI_LINK_COUNT 0x2 +#define U5500_DSI_LINK1_BASE (U5500_MCDE_BASE + U5500_MCDE_SIZE) +#define U5500_DSI_LINK2_BASE (U5500_DSI_LINK1_BASE + U5500_DSI_LINK_SIZE) + #endif diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h index 16647b2..0499971 100644 --- a/arch/arm/mach-ux500/include/mach/db8500-regs.h +++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h @@ -15,8 +15,13 @@ #define U8500_ESRAM_BANK2 (U8500_ESRAM_BANK1 + U8500_ESRAM_BANK_SIZE) #define U8500_ESRAM_BANK3 (U8500_ESRAM_BANK2 + U8500_ESRAM_BANK_SIZE) #define U8500_ESRAM_BANK4 (U8500_ESRAM_BANK3 + U8500_ESRAM_BANK_SIZE) -/* Use bank 4 for DMA LCPA */ -#define U8500_DMA_LCPA_BASE U8500_ESRAM_BANK4 +/* + * on V1 DMA uses 4KB for logical parameters position is right after the 64KB + * reserved for security + */ +#define U8500_ESRAM_DMA_LCPA_OFFSET 0x10000 + +#define U8500_DMA_LCPA_BASE (U8500_ESRAM_BANK0 + U8500_ESRAM_DMA_LCPA_OFFSET) #define U8500_DMA_LCPA_BASE_ED (U8500_ESRAM_BANK4 + 0x4000) #define U8500_PER3_BASE 0x80000000 @@ -27,9 +32,12 @@ #define U8500_B2R2_BASE 0x80130000 #define U8500_HSEM_BASE 0x80140000 #define U8500_PER4_BASE 0x80150000 +#define U8500_TPIU_BASE 0x80190000 #define U8500_ICN_BASE 0x81000000 #define U8500_BOOT_ROM_BASE 0x90000000 +/* ASIC ID is at 0xbf4 offset within this region */ +#define U8500_ASIC_ID_BASE 0x9001D000 #define U8500_PER6_BASE 0xa03c0000 #define U8500_PER5_BASE 0xa03e0000 @@ -70,13 +78,15 @@ /* per6 base addresses */ #define U8500_RNG_BASE (U8500_PER6_BASE + 0x0000) -#define U8500_PKA_BASE (U8500_PER6_BASE + 0x1000) -#define U8500_PKAM_BASE (U8500_PER6_BASE + 0x2000) +#define U8500_HASH0_BASE (U8500_PER6_BASE + 0x1000) +#define U8500_HASH1_BASE (U8500_PER6_BASE + 0x2000) +#define U8500_PKA_BASE (U8500_PER6_BASE + 0x4000) +#define U8500_PKAM_BASE (U8500_PER6_BASE + 0x5100) #define U8500_MTU0_BASE (U8500_PER6_BASE + 0x6000) /* v1 */ #define U8500_MTU1_BASE (U8500_PER6_BASE + 0x7000) /* v1 */ #define U8500_CR_BASE (U8500_PER6_BASE + 0x8000) /* v1 */ -#define U8500_CRYPTO0_BASE (U8500_PER6_BASE + 0xa000) -#define U8500_CRYPTO1_BASE (U8500_PER6_BASE + 0xb000) +#define U8500_CRYP0_BASE (U8500_PER6_BASE + 0xa000) +#define U8500_CRYP1_BASE (U8500_PER6_BASE + 0xb000) #define U8500_CLKRST6_BASE (U8500_PER6_BASE + 0xf000) /* per5 base addresses */ @@ -93,7 +103,8 @@ #define U8500_DMC_BASE (U8500_PER4_BASE + 0x06000) #define U8500_PRCMU_BASE (U8500_PER4_BASE + 0x07000) #define U8500_PRCMU_TCDM_BASE_V1 (U8500_PER4_BASE + 0x0f000) -#define U8500_PRCMU_TCDM_BASE (U8500_PER4_BASE + 0x68000) +#define U8500_PRCMU_TCDM_BASE (U8500_PER4_BASE + 0x68000) +#define U8500_PRCMU_TCPM_BASE (U8500_PER4_BASE + 0x60000) /* per3 base addresses */ #define U8500_FSMC_BASE (U8500_PER3_BASE + 0x0000) @@ -124,6 +135,7 @@ #define U8500_I2C1_BASE (U8500_PER1_BASE + 0x2000) #define U8500_MSP0_BASE (U8500_PER1_BASE + 0x3000) #define U8500_MSP1_BASE (U8500_PER1_BASE + 0x4000) +#define U8500_MSP3_BASE (U8500_PER1_BASE + 0x5000) #define U8500_SDI0_BASE (U8500_PER1_BASE + 0x6000) #define U8500_I2C2_BASE (U8500_PER1_BASE + 0x8000) #define U8500_SPI3_BASE (U8500_PER1_BASE + 0x9000) @@ -143,4 +155,15 @@ #define U8500_GPIOBANK7_BASE (U8500_GPIO2_BASE + 0x80) #define U8500_GPIOBANK8_BASE U8500_GPIO3_BASE +#define U8500_MCDE_SIZE 0x1000 +#define U8500_DSI_LINK_SIZE 0x1000 +#define U8500_DSI_LINK1_BASE (U8500_MCDE_BASE + U8500_MCDE_SIZE) +#define U8500_DSI_LINK2_BASE (U8500_DSI_LINK1_BASE + U8500_DSI_LINK_SIZE) +#define U8500_DSI_LINK3_BASE (U8500_DSI_LINK2_BASE + U8500_DSI_LINK_SIZE) +#define U8500_DSI_LINK_COUNT 0x3 + +/* Modem and APE physical addresses */ +#define U8500_MODEM_BASE 0xe000000 +#define U8500_APE_BASE 0x6000000 + #endif diff --git a/arch/arm/mach-ux500/include/mach/hardware.h b/arch/arm/mach-ux500/include/mach/hardware.h index bf63f26..2c6f710 100644 --- a/arch/arm/mach-ux500/include/mach/hardware.h +++ b/arch/arm/mach-ux500/include/mach/hardware.h @@ -35,6 +35,7 @@ #ifndef __ASSEMBLY__ #include <mach/id.h> +extern void __iomem *_PRCMU_BASE; #define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) diff --git a/arch/arm/mach-ux500/include/mach/id.h b/arch/arm/mach-ux500/include/mach/id.h index f1288d1..02b541a3 100644 --- a/arch/arm/mach-ux500/include/mach/id.h +++ b/arch/arm/mach-ux500/include/mach/id.h @@ -75,6 +75,26 @@ static inline bool __attribute_const__ cpu_is_u8500v2(void) return cpu_is_u8500() && ((dbx500_revision() & 0xf0) == 0xB0); } +static inline bool cpu_is_u8500v20(void) +{ + return cpu_is_u8500() && (dbx500_revision() == 0xB0); +} + +static inline bool cpu_is_u8500v21(void) +{ + return cpu_is_u8500() && (dbx500_revision() == 0xB1); +} + +static inline bool cpu_is_u8500v20_or_later(void) +{ + return cpu_is_u8500() && !cpu_is_u8500v10() && !cpu_is_u8500v11(); +} + +static inline bool ux500_is_svp(void) +{ + return false; +} + #define ux500_unknown_soc() BUG() #endif diff --git a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h index 97ef55f..47969909 100644 --- a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h +++ b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h @@ -50,6 +50,11 @@ #define MOP500_IRQ_END MOP500_NR_IRQS +/* + * We may have several boards, but only one will run at a + * time, so the one with most IRQs will bump this ahead, + * but the IRQ_BOARD_START remains the same for either board. + */ #if MOP500_IRQ_END > IRQ_BOARD_END #undef IRQ_BOARD_END #define IRQ_BOARD_END MOP500_IRQ_END diff --git a/arch/arm/mach-ux500/include/mach/irqs-board-u5500.h b/arch/arm/mach-ux500/include/mach/irqs-board-u5500.h new file mode 100644 index 0000000..29d972c --- /dev/null +++ b/arch/arm/mach-ux500/include/mach/irqs-board-u5500.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * License terms: GNU General Public License (GPL) version 2 + */ + +#ifndef __MACH_IRQS_BOARD_U5500_H +#define __MACH_IRQS_BOARD_U5500_H + +#define AB5500_NR_IRQS 5 +#define IRQ_AB5500_BASE IRQ_BOARD_START +#define IRQ_AB5500_END (IRQ_AB5500_BASE + AB5500_NR_IRQS) + +#define U5500_IRQ_END IRQ_AB5500_END + +#if IRQ_BOARD_END < U5500_IRQ_END +#undef IRQ_BOARD_END +#define IRQ_BOARD_END U5500_IRQ_END +#endif + +#endif diff --git a/arch/arm/mach-ux500/include/mach/irqs-db5500.h b/arch/arm/mach-ux500/include/mach/irqs-db5500.h index bfa123d..7723977 100644 --- a/arch/arm/mach-ux500/include/mach/irqs-db5500.h +++ b/arch/arm/mach-ux500/include/mach/irqs-db5500.h @@ -83,4 +83,31 @@ #define IRQ_DB5500_GPIO6 (IRQ_SHPI_START + 125) #define IRQ_DB5500_GPIO7 (IRQ_SHPI_START + 126) +#ifdef CONFIG_UX500_SOC_DB5500 + +/* + * After the GPIO ones we reserve a range of IRQ:s in which virtual + * IRQ:s representing modem IRQ:s can be allocated + */ +#define IRQ_MODEM_EVENTS_BASE IRQ_SOC_START +#define IRQ_MODEM_EVENTS_NBR 72 +#define IRQ_MODEM_EVENTS_END (IRQ_MODEM_EVENTS_BASE + IRQ_MODEM_EVENTS_NBR) + +/* List of virtual IRQ:s that are allocated from the range above */ +#define MBOX_PAIR0_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 43) +#define MBOX_PAIR1_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 45) +#define MBOX_PAIR2_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 41) + +/* + * We may have several SoCs, but only one will run at a + * time, so the one with most IRQs will bump this ahead, + * but the IRQ_SOC_START remains the same for either SoC. + */ +#if IRQ_SOC_END < IRQ_MODEM_EVENTS_END +#undef IRQ_SOC_END +#define IRQ_SOC_END IRQ_MODEM_EVENTS_END +#endif + +#endif /* CONFIG_UX500_SOC_DB5500 */ + #endif diff --git a/arch/arm/mach-ux500/include/mach/irqs-db8500.h b/arch/arm/mach-ux500/include/mach/irqs-db8500.h index 8b5d9f0..68bc149 100644 --- a/arch/arm/mach-ux500/include/mach/irqs-db8500.h +++ b/arch/arm/mach-ux500/include/mach/irqs-db8500.h @@ -93,4 +93,58 @@ #define IRQ_DB8500_GPIO7 (IRQ_SHPI_START + 126) #define IRQ_DB8500_GPIO8 (IRQ_SHPI_START + 127) +#define IRQ_CA_WAKE_REQ_ED (IRQ_SHPI_START + 71) +#define IRQ_AC_READ_NOTIFICATION_0_ED (IRQ_SHPI_START + 66) +#define IRQ_AC_READ_NOTIFICATION_1_ED (IRQ_SHPI_START + 64) +#define IRQ_CA_MSG_PEND_NOTIFICATION_0_ED (IRQ_SHPI_START + 67) +#define IRQ_CA_MSG_PEND_NOTIFICATION_1_ED (IRQ_SHPI_START + 65) + +#define IRQ_CA_WAKE_REQ_V1 (IRQ_SHPI_START + 83) +#define IRQ_AC_READ_NOTIFICATION_0_V1 (IRQ_SHPI_START + 78) +#define IRQ_AC_READ_NOTIFICATION_1_V1 (IRQ_SHPI_START + 76) +#define IRQ_CA_MSG_PEND_NOTIFICATION_0_V1 (IRQ_SHPI_START + 79) +#define IRQ_CA_MSG_PEND_NOTIFICATION_1_V1 (IRQ_SHPI_START + 77) + +#ifdef CONFIG_UX500_SOC_DB8500 + +/* Virtual interrupts corresponding to the PRCMU wakeups. */ +#define IRQ_PRCMU_BASE IRQ_SOC_START +#define NUM_PRCMU_WAKEUPS (IRQ_PRCMU_END - IRQ_PRCMU_BASE) + +#define IRQ_PRCMU_RTC (IRQ_PRCMU_BASE) +#define IRQ_PRCMU_RTT0 (IRQ_PRCMU_BASE + 1) +#define IRQ_PRCMU_RTT1 (IRQ_PRCMU_BASE + 2) +#define IRQ_PRCMU_HSI0 (IRQ_PRCMU_BASE + 3) +#define IRQ_PRCMU_HSI1 (IRQ_PRCMU_BASE + 4) +#define IRQ_PRCMU_CA_WAKE (IRQ_PRCMU_BASE + 5) +#define IRQ_PRCMU_USB (IRQ_PRCMU_BASE + 6) +#define IRQ_PRCMU_ABB (IRQ_PRCMU_BASE + 7) +#define IRQ_PRCMU_ABB_FIFO (IRQ_PRCMU_BASE + 8) +#define IRQ_PRCMU_ARM (IRQ_PRCMU_BASE + 9) +#define IRQ_PRCMU_MODEM_SW_RESET_REQ (IRQ_PRCMU_BASE + 10) +#define IRQ_PRCMU_GPIO0 (IRQ_PRCMU_BASE + 11) +#define IRQ_PRCMU_GPIO1 (IRQ_PRCMU_BASE + 12) +#define IRQ_PRCMU_GPIO2 (IRQ_PRCMU_BASE + 13) +#define IRQ_PRCMU_GPIO3 (IRQ_PRCMU_BASE + 14) +#define IRQ_PRCMU_GPIO4 (IRQ_PRCMU_BASE + 15) +#define IRQ_PRCMU_GPIO5 (IRQ_PRCMU_BASE + 16) +#define IRQ_PRCMU_GPIO6 (IRQ_PRCMU_BASE + 17) +#define IRQ_PRCMU_GPIO7 (IRQ_PRCMU_BASE + 18) +#define IRQ_PRCMU_GPIO8 (IRQ_PRCMU_BASE + 19) +#define IRQ_PRCMU_CA_SLEEP (IRQ_PRCMU_BASE + 20) +#define IRQ_PRCMU_HOTMON_LOW (IRQ_PRCMU_BASE + 21) +#define IRQ_PRCMU_HOTMON_HIGH (IRQ_PRCMU_BASE + 22) +#define IRQ_PRCMU_END (IRQ_PRCMU_BASE + 23) + +/* + * We may have several SoCs, but only one will run at a + * time, so the one with most IRQs will bump this ahead, + * but the IRQ_SOC_START remains the same for either SoC. + */ +#if IRQ_SOC_END < IRQ_PRCMU_END +#undef IRQ_SOC_END +#define IRQ_SOC_END IRQ_PRCMU_END +#endif + +#endif /* CONFIG_UX500_SOC_DB8500 */ #endif diff --git a/arch/arm/mach-ux500/include/mach/irqs.h b/arch/arm/mach-ux500/include/mach/irqs.h index ba1294c..9db68d2 100644 --- a/arch/arm/mach-ux500/include/mach/irqs.h +++ b/arch/arm/mach-ux500/include/mach/irqs.h @@ -10,49 +10,47 @@ #ifndef ASM_ARCH_IRQS_H #define ASM_ARCH_IRQS_H -#include <mach/irqs-db5500.h> -#include <mach/irqs-db8500.h> +#include <mach/hardware.h> -#define IRQ_LOCALTIMER 29 -#define IRQ_LOCALWDOG 30 +#define IRQ_LOCALTIMER 29 +#define IRQ_LOCALWDOG 30 /* Shared Peripheral Interrupt (SHPI) */ #define IRQ_SHPI_START 32 -/* Interrupt numbers generic for shared peripheral */ +/* + * MTU0 preserved for now until plat-nomadik is taught not to use it. Don't + * add any other IRQs here, use the irqs-dbx500.h files. + */ #define IRQ_MTU0 (IRQ_SHPI_START + 4) -/* There are 128 shared peripheral interrupts assigned to - * INTID[160:32]. The first 32 interrupts are reserved. - */ -#define DBX500_NR_INTERNAL_IRQS 161 +#define DBX500_NR_INTERNAL_IRQS 160 /* After chip-specific IRQ numbers we have the GPIO ones */ #define NOMADIK_NR_GPIO 288 #define NOMADIK_GPIO_TO_IRQ(gpio) ((gpio) + DBX500_NR_INTERNAL_IRQS) #define NOMADIK_IRQ_TO_GPIO(irq) ((irq) - DBX500_NR_INTERNAL_IRQS) -#define IRQ_BOARD_START NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO) +#define IRQ_GPIO_END NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO) + +#define IRQ_SOC_START IRQ_GPIO_END +/* This will be overridden by SoC-specific irq headers */ +#define IRQ_SOC_END IRQ_SOC_START +#include <mach/irqs-db5500.h> +#include <mach/irqs-db8500.h> + +#define IRQ_BOARD_START IRQ_SOC_END /* This will be overridden by board-specific irq headers */ -#define IRQ_BOARD_END IRQ_BOARD_START +#define IRQ_BOARD_END IRQ_BOARD_START #ifdef CONFIG_MACH_U8500 #include <mach/irqs-board-mop500.h> #endif -/* - * After the board specific IRQ:s we reserve a range of IRQ:s in which virtual - * IRQ:s representing modem IRQ:s can be allocated - */ -#define IRQ_MODEM_EVENTS_BASE (IRQ_BOARD_END + 1) -#define IRQ_MODEM_EVENTS_NBR 72 -#define IRQ_MODEM_EVENTS_END (IRQ_MODEM_EVENTS_BASE + IRQ_MODEM_EVENTS_NBR) - -/* List of virtual IRQ:s that are allocated from the range above */ -#define MBOX_PAIR0_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 43) -#define MBOX_PAIR1_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 45) -#define MBOX_PAIR2_VIRT_IRQ (IRQ_MODEM_EVENTS_BASE + 41) +#ifdef CONFIG_MACH_U5500 +#include <mach/irqs-board-u5500.h> +#endif -#define NR_IRQS IRQ_MODEM_EVENTS_END +#define NR_IRQS IRQ_BOARD_END #endif /* ASM_ARCH_IRQS_H */ diff --git a/arch/arm/mach-ux500/include/mach/prcmu-defs.h b/arch/arm/mach-ux500/include/mach/prcmu-defs.h deleted file mode 100644 index 848ba64..0000000 --- a/arch/arm/mach-ux500/include/mach/prcmu-defs.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright (C) STMicroelectronics 2009 - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Sundar Iyer <sundar.iyer@stericsson.com> - * Author: Martin Persson <martin.persson@stericsson.com> - * - * License Terms: GNU General Public License v2 - * - * PRCM Unit definitions - */ - -#ifndef __MACH_PRCMU_DEFS_H -#define __MACH_PRCMU_DEFS_H - -enum prcmu_cpu_opp { - CPU_OPP_INIT = 0x00, - CPU_OPP_NO_CHANGE = 0x01, - CPU_OPP_100 = 0x02, - CPU_OPP_50 = 0x03, - CPU_OPP_MAX = 0x04, - CPU_OPP_EXT_CLK = 0x07 -}; -enum prcmu_ape_opp { - APE_OPP_NO_CHANGE = 0x00, - APE_OPP_100 = 0x02, - APE_OPP_50 = 0x03, -}; - -#endif /* __MACH_PRCMU_DEFS_H */ diff --git a/arch/arm/mach-ux500/include/mach/prcmu-regs.h b/arch/arm/mach-ux500/include/mach/prcmu-regs.h deleted file mode 100644 index 455467e..0000000 --- a/arch/arm/mach-ux500/include/mach/prcmu-regs.h +++ /dev/null @@ -1,96 +0,0 @@ -/* - * Copyright (C) STMicroelectronics 2009 - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com> - * Author: Sundar Iyer <sundar.iyer@stericsson.com> - * - * License Terms: GNU General Public License v2 - * - * PRCM Unit registers - */ - -#ifndef __MACH_PRCMU_REGS_H -#define __MACH_PRCMU_REGS_H - -#include <mach/hardware.h> - -#define _PRCMU_BASE IO_ADDRESS(U8500_PRCMU_BASE) - -#define PRCM_ARM_PLLDIVPS (_PRCMU_BASE + 0x118) -#define PRCM_ARM_CHGCLKREQ (_PRCMU_BASE + 0x114) -#define PRCM_PLLARM_ENABLE (_PRCMU_BASE + 0x98) -#define PRCM_ARMCLKFIX_MGT (_PRCMU_BASE + 0x0) -#define PRCM_A9_RESETN_CLR (_PRCMU_BASE + 0x1f4) -#define PRCM_A9_RESETN_SET (_PRCMU_BASE + 0x1f0) -#define PRCM_ARM_LS_CLAMP (_PRCMU_BASE + 0x30c) -#define PRCM_SRAM_A9 (_PRCMU_BASE + 0x308) - -/* ARM WFI Standby signal register */ -#define PRCM_ARM_WFI_STANDBY (_PRCMU_BASE + 0x130) -#define PRCMU_IOCR (_PRCMU_BASE + 0x310) - -/* CPU mailbox registers */ -#define PRCM_MBOX_CPU_VAL (_PRCMU_BASE + 0x0fc) -#define PRCM_MBOX_CPU_SET (_PRCMU_BASE + 0x100) -#define PRCM_MBOX_CPU_CLR (_PRCMU_BASE + 0x104) - -/* Dual A9 core interrupt management unit registers */ -#define PRCM_A9_MASK_REQ (_PRCMU_BASE + 0x328) -#define PRCM_A9_MASK_ACK (_PRCMU_BASE + 0x32c) -#define PRCM_ARMITMSK31TO0 (_PRCMU_BASE + 0x11c) -#define PRCM_ARMITMSK63TO32 (_PRCMU_BASE + 0x120) -#define PRCM_ARMITMSK95TO64 (_PRCMU_BASE + 0x124) -#define PRCM_ARMITMSK127TO96 (_PRCMU_BASE + 0x128) -#define PRCM_POWER_STATE_VAL (_PRCMU_BASE + 0x25C) -#define PRCM_ARMITVAL31TO0 (_PRCMU_BASE + 0x260) -#define PRCM_ARMITVAL63TO32 (_PRCMU_BASE + 0x264) -#define PRCM_ARMITVAL95TO64 (_PRCMU_BASE + 0x268) -#define PRCM_ARMITVAL127TO96 (_PRCMU_BASE + 0x26C) - -#define PRCM_HOSTACCESS_REQ (_PRCMU_BASE + 0x334) -#define ARM_WAKEUP_MODEM 0x1 - -#define PRCM_ARM_IT1_CLEAR (_PRCMU_BASE + 0x48C) -#define PRCM_ARM_IT1_VAL (_PRCMU_BASE + 0x494) -#define PRCM_HOLD_EVT (_PRCMU_BASE + 0x174) - -#define PRCM_ITSTATUS0 (_PRCMU_BASE + 0x148) -#define PRCM_ITSTATUS1 (_PRCMU_BASE + 0x150) -#define PRCM_ITSTATUS2 (_PRCMU_BASE + 0x158) -#define PRCM_ITSTATUS3 (_PRCMU_BASE + 0x160) -#define PRCM_ITSTATUS4 (_PRCMU_BASE + 0x168) -#define PRCM_ITSTATUS5 (_PRCMU_BASE + 0x484) -#define PRCM_ITCLEAR5 (_PRCMU_BASE + 0x488) -#define PRCM_ARMIT_MASKXP70_IT (_PRCMU_BASE + 0x1018) - -/* System reset register */ -#define PRCM_APE_SOFTRST (_PRCMU_BASE + 0x228) - -/* Level shifter and clamp control registers */ -#define PRCM_MMIP_LS_CLAMP_SET (_PRCMU_BASE + 0x420) -#define PRCM_MMIP_LS_CLAMP_CLR (_PRCMU_BASE + 0x424) - -/* PRCMU clock/PLL/reset registers */ -#define PRCM_PLLDSI_FREQ (_PRCMU_BASE + 0x500) -#define PRCM_PLLDSI_ENABLE (_PRCMU_BASE + 0x504) -#define PRCM_LCDCLK_MGT (_PRCMU_BASE + 0x044) -#define PRCM_MCDECLK_MGT (_PRCMU_BASE + 0x064) -#define PRCM_HDMICLK_MGT (_PRCMU_BASE + 0x058) -#define PRCM_TVCLK_MGT (_PRCMU_BASE + 0x07c) -#define PRCM_DSI_PLLOUT_SEL (_PRCMU_BASE + 0x530) -#define PRCM_DSITVCLK_DIV (_PRCMU_BASE + 0x52C) -#define PRCM_APE_RESETN_SET (_PRCMU_BASE + 0x1E4) -#define PRCM_APE_RESETN_CLR (_PRCMU_BASE + 0x1E8) - -/* ePOD and memory power signal control registers */ -#define PRCM_EPOD_C_SET (_PRCMU_BASE + 0x410) -#define PRCM_SRAM_LS_SLEEP (_PRCMU_BASE + 0x304) - -/* Debug power control unit registers */ -#define PRCM_POWER_STATE_SET (_PRCMU_BASE + 0x254) - -/* Miscellaneous unit registers */ -#define PRCM_DSI_SW_RESET (_PRCMU_BASE + 0x324) - -#endif /* __MACH_PRCMU_REGS_H */ diff --git a/arch/arm/mach-ux500/include/mach/prcmu.h b/arch/arm/mach-ux500/include/mach/prcmu.h deleted file mode 100644 index c49e456..0000000 --- a/arch/arm/mach-ux500/include/mach/prcmu.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Copyright (C) STMicroelectronics 2009 - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com> - * Author: Sundar Iyer <sundar.iyer@stericsson.com> - * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com> - * - * License Terms: GNU General Public License v2 - * - * PRCM Unit f/w API - */ -#ifndef __MACH_PRCMU_H -#define __MACH_PRCMU_H -#include <mach/prcmu-defs.h> - -void __init prcmu_early_init(void); -int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); -int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size); -int prcmu_set_ape_opp(enum prcmu_ape_opp opp); -int prcmu_set_cpu_opp(enum prcmu_cpu_opp opp); -int prcmu_set_ape_cpu_opps(enum prcmu_ape_opp ape_opp, - enum prcmu_cpu_opp cpu_opp); -int prcmu_get_ape_opp(void); -int prcmu_get_cpu_opp(void); -bool prcmu_has_arm_maxopp(void); - -#endif /* __MACH_PRCMU_H */ diff --git a/arch/arm/mach-ux500/prcmu.c b/arch/arm/mach-ux500/prcmu.c deleted file mode 100644 index c522d26..0000000 --- a/arch/arm/mach-ux500/prcmu.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * Copyright (C) STMicroelectronics 2009 - * Copyright (C) ST-Ericsson SA 2010 - * - * License Terms: GNU General Public License v2 - * Author: Kumar Sanghvi <kumar.sanghvi@stericsson.com> - * Author: Sundar Iyer <sundar.iyer@stericsson.com> - * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com> - * - * U8500 PRCM Unit interface driver - * - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/mutex.h> -#include <linux/completion.h> -#include <linux/jiffies.h> -#include <linux/bitops.h> -#include <linux/interrupt.h> - -#include <mach/hardware.h> -#include <mach/prcmu-regs.h> -#include <mach/prcmu-defs.h> - -/* Global var to runtime determine TCDM base for v2 or v1 */ -static __iomem void *tcdm_base; - -#define _MBOX_HEADER (tcdm_base + 0xFE8) -#define MBOX_HEADER_REQ_MB0 (_MBOX_HEADER + 0x0) - -#define REQ_MB1 (tcdm_base + 0xFD0) -#define REQ_MB5 (tcdm_base + 0xE44) - -#define REQ_MB1_ARMOPP (REQ_MB1 + 0x0) -#define REQ_MB1_APEOPP (REQ_MB1 + 0x1) -#define REQ_MB1_BOOSTOPP (REQ_MB1 + 0x2) - -#define ACK_MB1 (tcdm_base + 0xE04) -#define ACK_MB5 (tcdm_base + 0xDF4) - -#define ACK_MB1_CURR_ARMOPP (ACK_MB1 + 0x0) -#define ACK_MB1_CURR_APEOPP (ACK_MB1 + 0x1) - -#define REQ_MB5_I2C_SLAVE_OP (REQ_MB5) -#define REQ_MB5_I2C_HW_BITS (REQ_MB5 + 1) -#define REQ_MB5_I2C_REG (REQ_MB5 + 2) -#define REQ_MB5_I2C_VAL (REQ_MB5 + 3) - -#define ACK_MB5_I2C_STATUS (ACK_MB5 + 1) -#define ACK_MB5_I2C_VAL (ACK_MB5 + 3) - -#define PRCM_AVS_VARM_MAX_OPP (tcdm_base + 0x2E4) -#define PRCM_AVS_ISMODEENABLE 7 -#define PRCM_AVS_ISMODEENABLE_MASK (1 << PRCM_AVS_ISMODEENABLE) - -#define I2C_WRITE(slave) \ - (((slave) << 1) | (cpu_is_u8500v2() ? BIT(6) : 0)) -#define I2C_READ(slave) \ - (((slave) << 1) | (cpu_is_u8500v2() ? BIT(6) : 0) | BIT(0)) -#define I2C_STOP_EN BIT(3) - -enum mb1_h { - MB1H_ARM_OPP = 1, - MB1H_APE_OPP, - MB1H_ARM_APE_OPP, -}; - -static struct { - struct mutex lock; - struct completion work; - struct { - u8 arm_opp; - u8 ape_opp; - u8 arm_status; - u8 ape_status; - } ack; -} mb1_transfer; - -enum ack_mb5_status { - I2C_WR_OK = 0x01, - I2C_RD_OK = 0x02, -}; - -#define MBOX_BIT BIT -#define NUM_MBOX 8 - -static struct { - struct mutex lock; - struct completion work; - bool failed; - struct { - u8 status; - u8 value; - } ack; -} mb5_transfer; - -/** - * prcmu_abb_read() - Read register value(s) from the ABB. - * @slave: The I2C slave address. - * @reg: The (start) register address. - * @value: The read out value(s). - * @size: The number of registers to read. - * - * Reads register value(s) from the ABB. - * @size has to be 1 for the current firmware version. - */ -int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) -{ - int r; - - if (size != 1) - return -EINVAL; - - r = mutex_lock_interruptible(&mb5_transfer.lock); - if (r) - return r; - - while (readl(PRCM_MBOX_CPU_VAL) & MBOX_BIT(5)) - cpu_relax(); - - writeb(I2C_READ(slave), REQ_MB5_I2C_SLAVE_OP); - writeb(I2C_STOP_EN, REQ_MB5_I2C_HW_BITS); - writeb(reg, REQ_MB5_I2C_REG); - - writel(MBOX_BIT(5), PRCM_MBOX_CPU_SET); - if (!wait_for_completion_timeout(&mb5_transfer.work, - msecs_to_jiffies(500))) { - pr_err("prcmu: prcmu_abb_read timed out.\n"); - r = -EIO; - goto unlock_and_return; - } - r = ((mb5_transfer.ack.status == I2C_RD_OK) ? 0 : -EIO); - if (!r) - *value = mb5_transfer.ack.value; - -unlock_and_return: - mutex_unlock(&mb5_transfer.lock); - return r; -} -EXPORT_SYMBOL(prcmu_abb_read); - -/** - * prcmu_abb_write() - Write register value(s) to the ABB. - * @slave: The I2C slave address. - * @reg: The (start) register address. - * @value: The value(s) to write. - * @size: The number of registers to write. - * - * Reads register value(s) from the ABB. - * @size has to be 1 for the current firmware version. - */ -int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size) -{ - int r; - - if (size != 1) - return -EINVAL; - - r = mutex_lock_interruptible(&mb5_transfer.lock); - if (r) - return r; - - - while (readl(PRCM_MBOX_CPU_VAL) & MBOX_BIT(5)) - cpu_relax(); - - writeb(I2C_WRITE(slave), REQ_MB5_I2C_SLAVE_OP); - writeb(I2C_STOP_EN, REQ_MB5_I2C_HW_BITS); - writeb(reg, REQ_MB5_I2C_REG); - writeb(*value, REQ_MB5_I2C_VAL); - - writel(MBOX_BIT(5), PRCM_MBOX_CPU_SET); - if (!wait_for_completion_timeout(&mb5_transfer.work, - msecs_to_jiffies(500))) { - pr_err("prcmu: prcmu_abb_write timed out.\n"); - r = -EIO; - goto unlock_and_return; - } - r = ((mb5_transfer.ack.status == I2C_WR_OK) ? 0 : -EIO); - -unlock_and_return: - mutex_unlock(&mb5_transfer.lock); - return r; -} -EXPORT_SYMBOL(prcmu_abb_write); - -static int set_ape_cpu_opps(u8 header, enum prcmu_ape_opp ape_opp, - enum prcmu_cpu_opp cpu_opp) -{ - bool do_ape; - bool do_arm; - int err = 0; - - do_ape = ((header == MB1H_APE_OPP) || (header == MB1H_ARM_APE_OPP)); - do_arm = ((header == MB1H_ARM_OPP) || (header == MB1H_ARM_APE_OPP)); - - mutex_lock(&mb1_transfer.lock); - - while (readl(PRCM_MBOX_CPU_VAL) & MBOX_BIT(1)) - cpu_relax(); - - writeb(0, MBOX_HEADER_REQ_MB0); - writeb(cpu_opp, REQ_MB1_ARMOPP); - writeb(ape_opp, REQ_MB1_APEOPP); - writeb(0, REQ_MB1_BOOSTOPP); - writel(MBOX_BIT(1), PRCM_MBOX_CPU_SET); - wait_for_completion(&mb1_transfer.work); - if ((do_ape) && (mb1_transfer.ack.ape_status != 0)) - err = -EIO; - if ((do_arm) && (mb1_transfer.ack.arm_status != 0)) - err = -EIO; - - mutex_unlock(&mb1_transfer.lock); - - return err; -} - -/** - * prcmu_set_ape_opp() - Set the OPP of the APE. - * @opp: The OPP to set. - * - * This function sets the OPP of the APE. - */ -int prcmu_set_ape_opp(enum prcmu_ape_opp opp) -{ - return set_ape_cpu_opps(MB1H_APE_OPP, opp, APE_OPP_NO_CHANGE); -} -EXPORT_SYMBOL(prcmu_set_ape_opp); - -/** - * prcmu_set_cpu_opp() - Set the OPP of the CPU. - * @opp: The OPP to set. - * - * This function sets the OPP of the CPU. - */ -int prcmu_set_cpu_opp(enum prcmu_cpu_opp opp) -{ - return set_ape_cpu_opps(MB1H_ARM_OPP, CPU_OPP_NO_CHANGE, opp); -} -EXPORT_SYMBOL(prcmu_set_cpu_opp); - -/** - * prcmu_set_ape_cpu_opps() - Set the OPPs of the APE and the CPU. - * @ape_opp: The APE OPP to set. - * @cpu_opp: The CPU OPP to set. - * - * This function sets the OPPs of the APE and the CPU. - */ -int prcmu_set_ape_cpu_opps(enum prcmu_ape_opp ape_opp, - enum prcmu_cpu_opp cpu_opp) -{ - return set_ape_cpu_opps(MB1H_ARM_APE_OPP, ape_opp, cpu_opp); -} -EXPORT_SYMBOL(prcmu_set_ape_cpu_opps); - -/** - * prcmu_get_ape_opp() - Get the OPP of the APE. - * - * This function gets the OPP of the APE. - */ -enum prcmu_ape_opp prcmu_get_ape_opp(void) -{ - return readb(ACK_MB1_CURR_APEOPP); -} -EXPORT_SYMBOL(prcmu_get_ape_opp); - -/** - * prcmu_get_cpu_opp() - Get the OPP of the CPU. - * - * This function gets the OPP of the CPU. The OPP is specified in %%. - * PRCMU_OPP_EXT is a special OPP value, not specified in %%. - */ -int prcmu_get_cpu_opp(void) -{ - return readb(ACK_MB1_CURR_ARMOPP); -} -EXPORT_SYMBOL(prcmu_get_cpu_opp); - -bool prcmu_has_arm_maxopp(void) -{ - return (readb(PRCM_AVS_VARM_MAX_OPP) & PRCM_AVS_ISMODEENABLE_MASK) - == PRCM_AVS_ISMODEENABLE_MASK; -} - -static void read_mailbox_0(void) -{ - writel(MBOX_BIT(0), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_1(void) -{ - mb1_transfer.ack.arm_opp = readb(ACK_MB1_CURR_ARMOPP); - mb1_transfer.ack.ape_opp = readb(ACK_MB1_CURR_APEOPP); - complete(&mb1_transfer.work); - writel(MBOX_BIT(1), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_2(void) -{ - writel(MBOX_BIT(2), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_3(void) -{ - writel(MBOX_BIT(3), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_4(void) -{ - writel(MBOX_BIT(4), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_5(void) -{ - mb5_transfer.ack.status = readb(ACK_MB5_I2C_STATUS); - mb5_transfer.ack.value = readb(ACK_MB5_I2C_VAL); - complete(&mb5_transfer.work); - writel(MBOX_BIT(5), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_6(void) -{ - writel(MBOX_BIT(6), PRCM_ARM_IT1_CLEAR); -} - -static void read_mailbox_7(void) -{ - writel(MBOX_BIT(7), PRCM_ARM_IT1_CLEAR); -} - -static void (* const read_mailbox[NUM_MBOX])(void) = { - read_mailbox_0, - read_mailbox_1, - read_mailbox_2, - read_mailbox_3, - read_mailbox_4, - read_mailbox_5, - read_mailbox_6, - read_mailbox_7 -}; - -static irqreturn_t prcmu_irq_handler(int irq, void *data) -{ - u32 bits; - u8 n; - - bits = (readl(PRCM_ARM_IT1_VAL) & (MBOX_BIT(NUM_MBOX) - 1)); - if (unlikely(!bits)) - return IRQ_NONE; - - for (n = 0; bits; n++) { - if (bits & MBOX_BIT(n)) { - bits -= MBOX_BIT(n); - read_mailbox[n](); - } - } - return IRQ_HANDLED; -} - -void __init prcmu_early_init(void) -{ - if (cpu_is_u8500v11() || cpu_is_u8500ed()) { - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE_V1); - } else if (cpu_is_u8500v2()) { - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); - } else { - pr_err("prcmu: Unsupported chip version\n"); - BUG(); - } -} - -static int __init prcmu_init(void) -{ - if (cpu_is_u8500ed()) { - pr_err("prcmu: Unsupported chip version\n"); - return 0; - } - - mutex_init(&mb1_transfer.lock); - init_completion(&mb1_transfer.work); - mutex_init(&mb5_transfer.lock); - init_completion(&mb5_transfer.work); - - /* Clean up the mailbox interrupts after pre-kernel code. */ - writel((MBOX_BIT(NUM_MBOX) - 1), PRCM_ARM_IT1_CLEAR); - - return request_irq(IRQ_DB8500_PRCMU1, prcmu_irq_handler, 0, - "prcmu", NULL); -} - -arch_initcall(prcmu_init); |