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Diffstat (limited to 'arch/arm/mach-u300/core.c')
| -rw-r--r-- | arch/arm/mach-u300/core.c | 413 |
1 files changed, 0 insertions, 413 deletions
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c deleted file mode 100644 index a79fa3b0c8ed..000000000000 --- a/arch/arm/mach-u300/core.c +++ /dev/null @@ -1,413 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * - * arch/arm/mach-u300/core.c - * - * Copyright (C) 2007-2012 ST-Ericsson SA - * Core platform support, IRQ handling and device definitions. - * Author: Linus Walleij <linus.walleij@stericsson.com> - */ -#include <linux/kernel.h> -#include <linux/pinctrl/machine.h> -#include <linux/pinctrl/pinconf-generic.h> -#include <linux/platform_data/clk-u300.h> -#include <linux/irqchip.h> -#include <linux/of_address.h> -#include <linux/of_platform.h> -#include <linux/clocksource.h> -#include <linux/clk.h> - -#include <asm/mach/map.h> -#include <asm/mach/arch.h> - -/* - * These are the large blocks of memory allocated for I/O. - * the defines are used for setting up the I/O memory mapping. - */ - -/* NAND Flash CS0 */ -#define U300_NAND_CS0_PHYS_BASE 0x80000000 -/* NFIF */ -#define U300_NAND_IF_PHYS_BASE 0x9f800000 -/* ALE, CLE offset for FSMC NAND */ -#define PLAT_NAND_CLE (1 << 16) -#define PLAT_NAND_ALE (1 << 17) -/* AHB Peripherals */ -#define U300_AHB_PER_PHYS_BASE 0xa0000000 -#define U300_AHB_PER_VIRT_BASE 0xff010000 -/* FAST Peripherals */ -#define U300_FAST_PER_PHYS_BASE 0xc0000000 -#define U300_FAST_PER_VIRT_BASE 0xff020000 -/* SLOW Peripherals */ -#define U300_SLOW_PER_PHYS_BASE 0xc0010000 -#define U300_SLOW_PER_VIRT_BASE 0xff000000 -/* Boot ROM */ -#define U300_BOOTROM_PHYS_BASE 0xffff0000 -#define U300_BOOTROM_VIRT_BASE 0xffff0000 -/* SEMI config base */ -#define U300_SEMI_CONFIG_BASE 0x2FFE0000 - -/* - * AHB peripherals - */ - -/* AHB Peripherals Bridge Controller */ -#define U300_AHB_BRIDGE_BASE (U300_AHB_PER_PHYS_BASE+0x0000) -/* Vectored Interrupt Controller 0, servicing 32 interrupts */ -#define U300_INTCON0_BASE (U300_AHB_PER_PHYS_BASE+0x1000) -#define U300_INTCON0_VBASE IOMEM(U300_AHB_PER_VIRT_BASE+0x1000) -/* Vectored Interrupt Controller 1, servicing 32 interrupts */ -#define U300_INTCON1_BASE (U300_AHB_PER_PHYS_BASE+0x2000) -#define U300_INTCON1_VBASE IOMEM(U300_AHB_PER_VIRT_BASE+0x2000) -/* Memory Stick Pro (MSPRO) controller */ -#define U300_MSPRO_BASE (U300_AHB_PER_PHYS_BASE+0x3000) -/* EMIF Configuration Area */ -#define U300_EMIF_CFG_BASE (U300_AHB_PER_PHYS_BASE+0x4000) - -/* - * FAST peripherals - */ - -/* FAST bridge control */ -#define U300_FAST_BRIDGE_BASE (U300_FAST_PER_PHYS_BASE+0x0000) -/* MMC/SD controller */ -#define U300_MMCSD_BASE (U300_FAST_PER_PHYS_BASE+0x1000) -/* PCM I2S0 controller */ -#define U300_PCM_I2S0_BASE (U300_FAST_PER_PHYS_BASE+0x2000) -/* PCM I2S1 controller */ -#define U300_PCM_I2S1_BASE (U300_FAST_PER_PHYS_BASE+0x3000) -/* I2C0 controller */ -#define U300_I2C0_BASE (U300_FAST_PER_PHYS_BASE+0x4000) -/* I2C1 controller */ -#define U300_I2C1_BASE (U300_FAST_PER_PHYS_BASE+0x5000) -/* SPI controller */ -#define U300_SPI_BASE (U300_FAST_PER_PHYS_BASE+0x6000) -/* Fast UART1 on U335 only */ -#define U300_UART1_BASE (U300_FAST_PER_PHYS_BASE+0x7000) - -/* - * SLOW peripherals - */ - -/* SLOW bridge control */ -#define U300_SLOW_BRIDGE_BASE (U300_SLOW_PER_PHYS_BASE) -/* SYSCON */ -#define U300_SYSCON_BASE (U300_SLOW_PER_PHYS_BASE+0x1000) -#define U300_SYSCON_VBASE IOMEM(U300_SLOW_PER_VIRT_BASE+0x1000) -/* Watchdog */ -#define U300_WDOG_BASE (U300_SLOW_PER_PHYS_BASE+0x2000) -/* UART0 */ -#define U300_UART0_BASE (U300_SLOW_PER_PHYS_BASE+0x3000) -/* APP side special timer */ -#define U300_TIMER_APP_BASE (U300_SLOW_PER_PHYS_BASE+0x4000) -#define U300_TIMER_APP_VBASE IOMEM(U300_SLOW_PER_VIRT_BASE+0x4000) -/* Keypad */ -#define U300_KEYPAD_BASE (U300_SLOW_PER_PHYS_BASE+0x5000) -/* GPIO */ -#define U300_GPIO_BASE (U300_SLOW_PER_PHYS_BASE+0x6000) -/* RTC */ -#define U300_RTC_BASE (U300_SLOW_PER_PHYS_BASE+0x7000) -/* Bus tracer */ -#define U300_BUSTR_BASE (U300_SLOW_PER_PHYS_BASE+0x8000) -/* Event handler (hardware queue) */ -#define U300_EVHIST_BASE (U300_SLOW_PER_PHYS_BASE+0x9000) -/* Genric Timer */ -#define U300_TIMER_BASE (U300_SLOW_PER_PHYS_BASE+0xa000) -/* PPM */ -#define U300_PPM_BASE (U300_SLOW_PER_PHYS_BASE+0xb000) - -/* - * REST peripherals - */ - -/* ISP (image signal processor) */ -#define U300_ISP_BASE (0xA0008000) -/* DMA Controller base */ -#define U300_DMAC_BASE (0xC0020000) -/* MSL Base */ -#define U300_MSL_BASE (0xc0022000) -/* APEX Base */ -#define U300_APEX_BASE (0xc0030000) -/* Video Encoder Base */ -#define U300_VIDEOENC_BASE (0xc0080000) -/* XGAM Base */ -#define U300_XGAM_BASE (0xd0000000) - -/* - * SYSCON addresses applicable to the core machine. - */ - -/* Chip ID register 16bit (R/-) */ -#define U300_SYSCON_CIDR (0x400) -/* SMCR */ -#define U300_SYSCON_SMCR (0x4d0) -#define U300_SYSCON_SMCR_FIELD_MASK (0x000e) -#define U300_SYSCON_SMCR_SEMI_SREFACK_IND (0x0008) -#define U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE (0x0004) -#define U300_SYSCON_SMCR_SEMI_EXT_BOOT_MODE_ENABLE (0x0002) -/* CPU_SW_DBGEN Software Debug Enable 16bit (R/W) */ -#define U300_SYSCON_CSDR (0x4f0) -#define U300_SYSCON_CSDR_SW_DEBUG_ENABLE (0x0001) -/* PRINT_CONTROL Print Control 16bit (R/-) */ -#define U300_SYSCON_PCR (0x4f8) -#define U300_SYSCON_PCR_SERV_IND (0x0001) -/* BOOT_CONTROL 16bit (R/-) */ -#define U300_SYSCON_BCR (0x4fc) -#define U300_SYSCON_BCR_ACC_CPU_SUBSYS_VINITHI_IND (0x0400) -#define U300_SYSCON_BCR_APP_CPU_SUBSYS_VINITHI_IND (0x0200) -#define U300_SYSCON_BCR_EXTRA_BOOT_OPTION_MASK (0x01FC) -#define U300_SYSCON_BCR_APP_BOOT_SERV_MASK (0x0003) - -static void __iomem *syscon_base; - -/* - * Static I/O mappings that are needed for booting the U300 platforms. The - * only things we need are the areas where we find the timer, syscon and - * intcon, since the remaining device drivers will map their own memory - * physical to virtual as the need arise. - */ -static struct map_desc u300_io_desc[] __initdata = { - { - .virtual = U300_SLOW_PER_VIRT_BASE, - .pfn = __phys_to_pfn(U300_SLOW_PER_PHYS_BASE), - .length = SZ_64K, - .type = MT_DEVICE, - }, - { - .virtual = U300_AHB_PER_VIRT_BASE, - .pfn = __phys_to_pfn(U300_AHB_PER_PHYS_BASE), - .length = SZ_32K, - .type = MT_DEVICE, - }, - { - .virtual = U300_FAST_PER_VIRT_BASE, - .pfn = __phys_to_pfn(U300_FAST_PER_PHYS_BASE), - .length = SZ_32K, - .type = MT_DEVICE, - }, -}; - -static void __init u300_map_io(void) -{ - iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc)); -} - -static unsigned long pin_pullup_conf[] = { - PIN_CONF_PACKED(PIN_CONFIG_BIAS_PULL_UP, 1), -}; - -static unsigned long pin_highz_conf[] = { - PIN_CONF_PACKED(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0), -}; - -/* Pin control settings */ -static struct pinctrl_map __initdata u300_pinmux_map[] = { - /* anonymous maps for chip power and EMIFs */ - PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-u300", NULL, "power"), - PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-u300", NULL, "emif0"), - PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-u300", NULL, "emif1"), - /* per-device maps for MMC/SD, SPI and UART */ - PIN_MAP_MUX_GROUP_DEFAULT("mmci", "pinctrl-u300", NULL, "mmc0"), - PIN_MAP_MUX_GROUP_DEFAULT("pl022", "pinctrl-u300", NULL, "spi0"), - PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-u300", NULL, "uart0"), - /* This pin is used for clock return rather than GPIO */ - PIN_MAP_CONFIGS_PIN_DEFAULT("mmci", "pinctrl-u300", "PIO APP GPIO 11", - pin_pullup_conf), - /* This pin is used for card detect */ - PIN_MAP_CONFIGS_PIN_DEFAULT("mmci", "pinctrl-u300", "PIO MS INS", - pin_highz_conf), -}; - -struct db_chip { - u16 chipid; - const char *name; -}; - -/* - * This is a list of the Digital Baseband chips used in the U300 platform. - */ -static struct db_chip db_chips[] __initdata = { - { - .chipid = 0xb800, - .name = "DB3000", - }, - { - .chipid = 0xc000, - .name = "DB3100", - }, - { - .chipid = 0xc800, - .name = "DB3150", - }, - { - .chipid = 0xd800, - .name = "DB3200", - }, - { - .chipid = 0xe000, - .name = "DB3250", - }, - { - .chipid = 0xe800, - .name = "DB3210", - }, - { - .chipid = 0xf000, - .name = "DB3350 P1x", - }, - { - .chipid = 0xf100, - .name = "DB3350 P2x", - }, - { - .chipid = 0x0000, /* List terminator */ - .name = NULL, - } -}; - -static void __init u300_init_check_chip(void) -{ - - u16 val; - struct db_chip *chip; - const char *chipname; - const char unknown[] = "UNKNOWN"; - - /* Read out and print chip ID */ - val = readw(syscon_base + U300_SYSCON_CIDR); - /* This is in funky bigendian order... */ - val = (val & 0xFFU) << 8 | (val >> 8); - chip = db_chips; - chipname = unknown; - - for ( ; chip->chipid; chip++) { - if (chip->chipid == (val & 0xFF00U)) { - chipname = chip->name; - break; - } - } - printk(KERN_INFO "Initializing U300 system on %s baseband chip " \ - "(chip ID 0x%04x)\n", chipname, val); - - if ((val & 0xFF00U) != 0xf000 && (val & 0xFF00U) != 0xf100) { - printk(KERN_ERR "Platform configured for BS335 " \ - " with DB3350 but %s detected, expect problems!", - chipname); - } -} - -/* Forward declare this function from the watchdog */ -void coh901327_watchdog_reset(void); - -static void u300_restart(enum reboot_mode mode, const char *cmd) -{ - switch (mode) { - case REBOOT_SOFT: - case REBOOT_HARD: -#ifdef CONFIG_COH901327_WATCHDOG - coh901327_watchdog_reset(); -#endif - break; - default: - /* Do nothing */ - break; - } - /* Wait for system do die/reset. */ - while (1); -} - -/* These are mostly to get the right device names for the clock lookups */ -static struct of_dev_auxdata u300_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("stericsson,pinctrl-u300", U300_SYSCON_BASE, - "pinctrl-u300", NULL), - OF_DEV_AUXDATA("stericsson,gpio-coh901", U300_GPIO_BASE, - "u300-gpio", NULL), - OF_DEV_AUXDATA("stericsson,coh901327", U300_WDOG_BASE, - "coh901327_wdog", NULL), - OF_DEV_AUXDATA("stericsson,coh901331", U300_RTC_BASE, - "rtc-coh901331", NULL), - OF_DEV_AUXDATA("stericsson,coh901318", U300_DMAC_BASE, - "coh901318", NULL), - OF_DEV_AUXDATA("stericsson,fsmc-nand", U300_NAND_IF_PHYS_BASE, - "fsmc-nand", NULL), - OF_DEV_AUXDATA("arm,primecell", U300_UART0_BASE, - "uart0", NULL), - OF_DEV_AUXDATA("arm,primecell", U300_UART1_BASE, - "uart1", NULL), - OF_DEV_AUXDATA("arm,primecell", U300_SPI_BASE, - "pl022", NULL), - OF_DEV_AUXDATA("st,ddci2c", U300_I2C0_BASE, - "stu300.0", NULL), - OF_DEV_AUXDATA("st,ddci2c", U300_I2C1_BASE, - "stu300.1", NULL), - OF_DEV_AUXDATA("arm,primecell", U300_MMCSD_BASE, - "mmci", NULL), - { /* sentinel */ }, -}; - -static void __init u300_init_irq_dt(void) -{ - struct device_node *syscon; - struct clk *clk; - - syscon = of_find_node_by_path("/syscon@c0011000"); - if (!syscon) { - pr_crit("could not find syscon node\n"); - return; - } - syscon_base = of_iomap(syscon, 0); - if (!syscon_base) { - pr_crit("could not remap syscon\n"); - return; - } - /* initialize clocking early, we want to clock the INTCON */ - u300_clk_init(syscon_base); - - /* Bootstrap EMIF and SEMI clocks */ - clk = clk_get_sys("pl172", NULL); - BUG_ON(IS_ERR(clk)); - clk_prepare_enable(clk); - clk = clk_get_sys("semi", NULL); - BUG_ON(IS_ERR(clk)); - clk_prepare_enable(clk); - - /* Clock the interrupt controller */ - clk = clk_get_sys("intcon", NULL); - BUG_ON(IS_ERR(clk)); - clk_prepare_enable(clk); - - irqchip_init(); -} - -static void __init u300_init_machine_dt(void) -{ - u16 val; - - /* Check what platform we run and print some status information */ - u300_init_check_chip(); - - /* Initialize pinmuxing */ - pinctrl_register_mappings(u300_pinmux_map, - ARRAY_SIZE(u300_pinmux_map)); - - of_platform_default_populate(NULL, u300_auxdata_lookup, NULL); - - /* Enable SEMI self refresh */ - val = readw(syscon_base + U300_SYSCON_SMCR) | - U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE; - writew(val, syscon_base + U300_SYSCON_SMCR); -} - -static const char * u300_board_compat[] = { - "stericsson,u300", - NULL, -}; - -DT_MACHINE_START(U300_DT, "U300 S335/B335 (Device Tree)") - .map_io = u300_map_io, - .init_irq = u300_init_irq_dt, - .init_time = timer_probe, - .init_machine = u300_init_machine_dt, - .restart = u300_restart, - .dt_compat = u300_board_compat, -MACHINE_END |