diff options
Diffstat (limited to 'arch/arm/mach-nomadik/cpu-8815.c')
| -rw-r--r-- | arch/arm/mach-nomadik/cpu-8815.c | 182 |
1 files changed, 4 insertions, 178 deletions
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c index 21c1aa51264..9116ca476d7 100644 --- a/arch/arm/mach-nomadik/cpu-8815.c +++ b/arch/arm/mach-nomadik/cpu-8815.c @@ -25,20 +25,12 @@ #include <linux/slab.h> #include <linux/irq.h> #include <linux/dma-mapping.h> -#include <linux/irqchip.h> -#include <linux/platform_data/clk-nomadik.h> -#include <linux/platform_data/pinctrl-nomadik.h> -#include <linux/pinctrl/machine.h> -#include <linux/platform_data/clocksource-nomadik-mtu.h> #include <linux/of_irq.h> #include <linux/of_gpio.h> #include <linux/of_address.h> #include <linux/of_platform.h> -#include <linux/mtd/fsmc.h> #include <linux/gpio.h> -#include <linux/amba/mmci.h> -#include <mach/irqs.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/time.h> @@ -92,48 +84,6 @@ #define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */ #define NOMADIK_UART1_VBASE 0xF01FB000 -static unsigned long out_low[] = { PIN_OUTPUT_LOW }; -static unsigned long out_high[] = { PIN_OUTPUT_HIGH }; -static unsigned long in_nopull[] = { PIN_INPUT_NOPULL }; -static unsigned long in_pullup[] = { PIN_INPUT_PULLUP }; - -static struct pinctrl_map __initdata nhk8815_pinmap[] = { - PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"), - PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"), - /* Hog in MMC/SD card mux */ - PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"), - /* MCCLK */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low), - /* MCCMD */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup), - /* MCCMDDIR */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high), - /* MCDAT3-0 */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup), - /* MCDAT0DIR */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high), - /* MCDAT31DIR */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high), - /* MCMSFBCLK */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup), - /* CD input GPIO */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull), - /* CD bias drive */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low), - /* I2C0 */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO62_D3", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO63_D2", in_pullup), - /* I2C1 */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO53_L4", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO54_L3", in_pullup), - /* I2C2 */ - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO73_C21", in_pullup), - PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO74_C20", in_pullup), -}; - /* This is needed for LL-debug/earlyprintk/debug-macro.S */ static struct map_desc cpu8815_io_desc[] __initdata = { { @@ -149,7 +99,7 @@ static void __init cpu8815_map_io(void) iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc)); } -static void cpu8815_restart(char mode, const char *cmd) +static void cpu8815_restart(enum reboot_mode mode, const char *cmd) { void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K); @@ -159,91 +109,6 @@ static void cpu8815_restart(char mode, const char *cmd) writel(1, srcbase + 0x18); } -/* Initial value for SRC control register: all timers use MXTAL/8 source */ -#define SRC_CR_INIT_MASK 0x00007fff -#define SRC_CR_INIT_VAL 0x2aaa8000 - -static void __init cpu8815_timer_init_of(void) -{ - struct device_node *mtu; - void __iomem *base; - int irq; - u32 src_cr; - - /* We need this to be up now */ - nomadik_clk_init(); - - mtu = of_find_node_by_path("/mtu0"); - if (!mtu) - return; - base = of_iomap(mtu, 0); - if (WARN_ON(!base)) - return; - irq = irq_of_parse_and_map(mtu, 0); - - pr_info("Remapped MTU @ %p, irq: %d\n", base, irq); - - /* Configure timer sources in "system reset controller" ctrl reg */ - src_cr = readl(base); - src_cr &= SRC_CR_INIT_MASK; - src_cr |= SRC_CR_INIT_VAL; - writel(src_cr, base); - - nmdk_timer_init(base, irq); -} - -static struct fsmc_nand_timings cpu8815_nand_timings = { - .thiz = 0, - .thold = 0x10, - .twait = 0x0A, - .tset = 0, -}; - -static struct fsmc_nand_platform_data cpu8815_nand_data = { - .nand_timings = &cpu8815_nand_timings, -}; - -/* - * The SMSC911x IRQ is connected to a GPIO pin, but the driver expects - * to simply request an IRQ passed as a resource. So the GPIO pin needs - * to be requested by this hog and set as input. - */ -static int __init cpu8815_eth_init(void) -{ - struct device_node *eth; - int gpio, irq, err; - - eth = of_find_node_by_path("/usb-s8815/ethernet-gpio"); - if (!eth) { - pr_info("could not find any ethernet GPIO\n"); - return 0; - } - gpio = of_get_gpio(eth, 0); - err = gpio_request(gpio, "eth_irq"); - if (err) { - pr_info("failed to request ethernet GPIO\n"); - return -ENODEV; - } - err = gpio_direction_input(gpio); - if (err) { - pr_info("failed to set ethernet GPIO as input\n"); - return -ENODEV; - } - irq = gpio_to_irq(gpio); - pr_info("enabled USB-S8815 ethernet GPIO %d, IRQ %d\n", gpio, irq); - return 0; -} -device_initcall(cpu8815_eth_init); - -/* - * TODO: - * cannot be set from device tree, convert to a proper DT - * binding. - */ -static struct mmci_platform_data mmcsd_plat_data = { - .ocr_mask = MMC_VDD_29_30, -}; - /* * This GPIO pin turns on a line that is used to detect card insertion * on this board. @@ -278,55 +143,16 @@ static int __init cpu8815_mmcsd_init(void) } device_initcall(cpu8815_mmcsd_init); - -/* These are mostly to get the right device names for the clock lookups */ -static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO0_BASE, - "gpio.0", NULL), - OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO1_BASE, - "gpio.1", NULL), - OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO2_BASE, - "gpio.2", NULL), - OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO3_BASE, - "gpio.3", NULL), - OF_DEV_AUXDATA("stericsson,nmk-pinctrl-stn8815", 0, - "pinctrl-stn8815", NULL), - OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART0_BASE, - "uart0", NULL), - OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART1_BASE, - "uart1", NULL), - OF_DEV_AUXDATA("arm,primecell", NOMADIK_RNG_BASE, - "rng", NULL), - OF_DEV_AUXDATA("arm,primecell", NOMADIK_RTC_BASE, - "rtc-pl031", NULL), - OF_DEV_AUXDATA("stericsson,fsmc-nand", NOMADIK_FSMC_BASE, - "fsmc-nand", &cpu8815_nand_data), - OF_DEV_AUXDATA("arm,primecell", NOMADIK_SDI_BASE, - "mmci", &mmcsd_plat_data), - { /* sentinel */ }, -}; - -static void __init cpu8815_init_of(void) -{ -#ifdef CONFIG_CACHE_L2X0 - /* At full speed latency must be >=2, so 0x249 in low bits */ - l2x0_of_init(0x00730249, 0xfe000fff); -#endif - pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap)); - of_platform_populate(NULL, of_default_bus_match_table, - cpu8815_auxdata_lookup, NULL); -} - static const char * cpu8815_board_compat[] = { "calaosystems,usb-s8815", NULL, }; DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815") + /* At full speed latency must be >=2, so 0x249 in low bits */ + .l2c_aux_val = 0x00700249, + .l2c_aux_mask = 0xfe0fefff, .map_io = cpu8815_map_io, - .init_irq = irqchip_init, - .init_time = cpu8815_timer_init_of, - .init_machine = cpu8815_init_of, .restart = cpu8815_restart, .dt_compat = cpu8815_board_compat, MACHINE_END |