diff options
Diffstat (limited to 'arch/avr32')
-rw-r--r-- | arch/avr32/boards/atngw100/flash.c | 5 | ||||
-rw-r--r-- | arch/avr32/boards/atngw100/setup.c | 14 | ||||
-rw-r--r-- | arch/avr32/boards/atstk1000/atstk1002.c | 1 | ||||
-rw-r--r-- | arch/avr32/boards/atstk1000/flash.c | 5 | ||||
-rw-r--r-- | arch/avr32/kernel/Makefile | 5 | ||||
-rw-r--r-- | arch/avr32/kernel/entry-avr32b.S | 26 | ||||
-rw-r--r-- | arch/avr32/kernel/setup.c | 2 | ||||
-rw-r--r-- | arch/avr32/kernel/vmlinux.lds.S (renamed from arch/avr32/kernel/vmlinux.lds.c) | 9 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 74 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/clock.c | 116 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/hsmc.c | 129 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/pio.c | 4 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/pm.h | 8 | ||||
-rw-r--r-- | arch/avr32/mm/init.c | 12 |
14 files changed, 359 insertions, 51 deletions
diff --git a/arch/avr32/boards/atngw100/flash.c b/arch/avr32/boards/atngw100/flash.c index f9b32a8eab9b..b07ae63aa548 100644 --- a/arch/avr32/boards/atngw100/flash.c +++ b/arch/avr32/boards/atngw100/flash.c @@ -15,7 +15,7 @@ #include <asm/arch/smc.h> -static struct smc_config flash_config __initdata = { +static struct smc_timing flash_timing __initdata = { .ncs_read_setup = 0, .nrd_setup = 40, .ncs_write_setup = 0, @@ -28,7 +28,9 @@ static struct smc_config flash_config __initdata = { .read_cycle = 120, .write_cycle = 120, +}; +static struct smc_config flash_config __initdata = { .bus_width = 2, .nrd_controlled = 1, .nwe_controlled = 1, @@ -82,6 +84,7 @@ static int __init atngw100_flash_init(void) { int ret; + smc_set_timing(&flash_config, &flash_timing); ret = smc_set_configuration(0, &flash_config); if (ret < 0) { printk(KERN_ERR "atngw100: failed to set NOR flash timing\n"); diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c index ef801563bbf5..52987c81d668 100644 --- a/arch/avr32/boards/atngw100/setup.c +++ b/arch/avr32/boards/atngw100/setup.c @@ -125,8 +125,11 @@ static struct platform_device ngw_gpio_leds = { }; static struct i2c_gpio_platform_data i2c_gpio_data = { - .sda_pin = GPIO_PIN_PA(6), - .scl_pin = GPIO_PIN_PA(7), + .sda_pin = GPIO_PIN_PA(6), + .scl_pin = GPIO_PIN_PA(7), + .sda_is_open_drain = 1, + .scl_is_open_drain = 1, + .udelay = 2, /* close to 100 kHz */ }; static struct platform_device i2c_gpio_device = { @@ -154,6 +157,7 @@ static int __init atngw100_init(void) set_hw_addr(at32_add_device_eth(1, ð_data[1])); at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); + at32_add_device_usba(0, NULL); for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) { at32_select_gpio(ngw_leds[i].gpio, @@ -161,8 +165,10 @@ static int __init atngw100_init(void) } platform_device_register(&ngw_gpio_leds); - at32_select_gpio(i2c_gpio_data.sda_pin, 0); - at32_select_gpio(i2c_gpio_data.scl_pin, 0); + at32_select_gpio(i2c_gpio_data.sda_pin, + AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); + at32_select_gpio(i2c_gpio_data.scl_pin, + AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); platform_device_register(&i2c_gpio_device); return 0; diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index c9981b731efa..6b9e466104ad 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c @@ -241,6 +241,7 @@ static int __init atstk1002_init(void) at32_add_device_lcdc(0, &atstk1000_lcdc_data, fbmem_start, fbmem_size); #endif + at32_add_device_usba(0, NULL); #ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM at32_add_device_ssc(0, ATMEL_SSC_TX); #endif diff --git a/arch/avr32/boards/atstk1000/flash.c b/arch/avr32/boards/atstk1000/flash.c index aac4300cca12..3d0a102ad45e 100644 --- a/arch/avr32/boards/atstk1000/flash.c +++ b/arch/avr32/boards/atstk1000/flash.c @@ -15,7 +15,7 @@ #include <asm/arch/smc.h> -static struct smc_config flash_config __initdata = { +static struct smc_timing flash_timing __initdata = { .ncs_read_setup = 0, .nrd_setup = 40, .ncs_write_setup = 0, @@ -28,7 +28,9 @@ static struct smc_config flash_config __initdata = { .read_cycle = 120, .write_cycle = 120, +}; +static struct smc_config flash_config __initdata = { .bus_width = 2, .nrd_controlled = 1, .nwe_controlled = 1, @@ -82,6 +84,7 @@ static int __init atstk1000_flash_init(void) { int ret; + smc_set_timing(&flash_config, &flash_timing); ret = smc_set_configuration(0, &flash_config); if (ret < 0) { printk(KERN_ERR "atstk1000: failed to set NOR flash timing\n"); diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile index 90e5afff54a2..989fcd1fef7e 100644 --- a/arch/avr32/kernel/Makefile +++ b/arch/avr32/kernel/Makefile @@ -11,8 +11,3 @@ obj-y += signal.o sys_avr32.o process.o time.o obj-y += init_task.o switch_to.o cpu.o obj-$(CONFIG_MODULES) += module.o avr32_ksyms.o obj-$(CONFIG_KPROBES) += kprobes.o - -USE_STANDARD_AS_RULE := true - -%.lds: %.lds.c FORCE - $(call if_changed_dep,cpp_lds_S) diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S index 42657f1703b2..ccadfd9b438d 100644 --- a/arch/avr32/kernel/entry-avr32b.S +++ b/arch/avr32/kernel/entry-avr32b.S @@ -159,11 +159,18 @@ handle_vmalloc_miss: .section .scall.text,"ax",@progbits system_call: +#ifdef CONFIG_PREEMPT + mask_interrupts +#endif pushm r12 /* r12_orig */ stmts --sp, r0-lr - zero_fp + mfsr r0, SYSREG_RAR_SUP mfsr r1, SYSREG_RSR_SUP +#ifdef CONFIG_PREEMPT + unmask_interrupts +#endif + zero_fp stm --sp, r0-r1 /* check for syscall tracing */ @@ -638,6 +645,13 @@ irq_level\level: stmts --sp,r0-lr mfsr r8, rar_int\level mfsr r9, rsr_int\level + +#ifdef CONFIG_PREEMPT + sub r11, pc, (. - system_call) + cp.w r11, r8 + breq 4f +#endif + pushm r8-r9 mov r11, sp @@ -668,6 +682,16 @@ irq_level\level: sub sp, -4 /* ignore r12_orig */ rete +#ifdef CONFIG_PREEMPT +4: mask_interrupts + mfsr r8, rsr_int\level + sbr r8, 16 + mtsr rsr_int\level, r8 + ldmts sp++, r0-lr + sub sp, -4 /* ignore r12_orig */ + rete +#endif + 2: get_thread_info r0 ld.w r1, r0[TI_flags] bld r1, TIF_CPU_GOING_TO_SLEEP diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c index d08b0bc6b2bb..4b4c1884e1c5 100644 --- a/arch/avr32/kernel/setup.c +++ b/arch/avr32/kernel/setup.c @@ -248,7 +248,7 @@ static int __init early_parse_fbmem(char *p) fbmem_size = memparse(p, &p); if (*p == '@') { - fbmem_start = memparse(p, &p); + fbmem_start = memparse(p + 1, &p); ret = add_reserved_region(fbmem_start, fbmem_start + fbmem_size - 1, "Framebuffer"); diff --git a/arch/avr32/kernel/vmlinux.lds.c b/arch/avr32/kernel/vmlinux.lds.S index db0438f35c00..ce9ac9659883 100644 --- a/arch/avr32/kernel/vmlinux.lds.c +++ b/arch/avr32/kernel/vmlinux.lds.S @@ -9,6 +9,8 @@ */ #define LOAD_OFFSET 0x00000000 #include <asm-generic/vmlinux.lds.h> +#include <asm/cache.h> +#include <asm/thread_info.h> OUTPUT_FORMAT("elf32-avr32", "elf32-avr32", "elf32-avr32") OUTPUT_ARCH(avr32) @@ -58,11 +60,10 @@ SECTIONS *(.init.ramfs) __initramfs_end = .; #endif - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_end = .; } - . = ALIGN(8192); .text : AT(ADDR(.text) - LOAD_OFFSET) { _evba = .; _text = .; @@ -96,7 +97,7 @@ SECTIONS RODATA - . = ALIGN(8192); + . = ALIGN(THREAD_SIZE); .data : AT(ADDR(.data) - LOAD_OFFSET) { _data = .; @@ -107,7 +108,7 @@ SECTIONS *(.data.init_task) /* Then, the cacheline aligned data */ - . = ALIGN(32); + . = ALIGN(L1_CACHE_BYTES); *(.data.cacheline_aligned) /* And the rest... */ diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 64cc5583ddfb..f6d154ca4d24 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -25,12 +25,6 @@ #include "pio.h" #include "pm.h" -/* - * We can reduce the code size a bit by using a constant here. Since - * this file is completely chip-specific, it's safe to not use - * ioremap. Generic drivers should of course never do this. - */ -#define AT32_PM_BASE 0xfff00000 #define PBMEM(base) \ { \ @@ -1168,6 +1162,72 @@ at32_add_device_ssc(unsigned int id, unsigned int flags) } /* -------------------------------------------------------------------- + * USB Device Controller + * -------------------------------------------------------------------- */ +static struct resource usba0_resource[] __initdata = { + { + .start = 0xff300000, + .end = 0xff3fffff, + .flags = IORESOURCE_MEM, + }, { + .start = 0xfff03000, + .end = 0xfff033ff, + .flags = IORESOURCE_MEM, + }, + IRQ(31), +}; +static struct clk usba0_pclk = { + .name = "pclk", + .parent = &pbb_clk, + .mode = pbb_clk_mode, + .get_rate = pbb_clk_get_rate, + .index = 12, +}; +static struct clk usba0_hclk = { + .name = "hclk", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .index = 6, +}; + +struct platform_device *__init +at32_add_device_usba(unsigned int id, struct usba_platform_data *data) +{ + struct platform_device *pdev; + + if (id != 0) + return NULL; + + pdev = platform_device_alloc("atmel_usba_udc", 0); + if (!pdev) + return NULL; + + if (platform_device_add_resources(pdev, usba0_resource, + ARRAY_SIZE(usba0_resource))) + goto out_free_pdev; + + if (data) { + if (platform_device_add_data(pdev, data, sizeof(*data))) + goto out_free_pdev; + + if (data->vbus_pin != GPIO_PIN_NONE) + at32_select_gpio(data->vbus_pin, 0); + } + + usba0_pclk.dev = &pdev->dev; + usba0_hclk.dev = &pdev->dev; + + platform_device_add(pdev); + + return pdev; + +out_free_pdev: + platform_device_put(pdev); + return NULL; +} + +/* -------------------------------------------------------------------- * GCLK * -------------------------------------------------------------------- */ static struct clk gclk0 = { @@ -1252,6 +1312,8 @@ struct clk *at32_clock_list[] = { &ssc0_pclk, &ssc1_pclk, &ssc2_pclk, + &usba0_hclk, + &usba0_pclk, &gclk0, &gclk1, &gclk2, diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c index 0f8c89c9f832..4642117cc9ab 100644 --- a/arch/avr32/mach-at32ap/clock.c +++ b/arch/avr32/mach-at32ap/clock.c @@ -150,3 +150,119 @@ struct clk *clk_get_parent(struct clk *clk) return clk->parent; } EXPORT_SYMBOL(clk_get_parent); + + + +#ifdef CONFIG_DEBUG_FS + +/* /sys/kernel/debug/at32ap_clk */ + +#include <linux/io.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include "pm.h" + + +#define NEST_DELTA 2 +#define NEST_MAX 6 + +struct clkinf { + struct seq_file *s; + unsigned nest; +}; + +static void +dump_clock(struct clk *parent, struct clkinf *r) +{ + unsigned nest = r->nest; + char buf[16 + NEST_MAX]; + struct clk *clk; + unsigned i; + + /* skip clocks coupled to devices that aren't registered */ + if (parent->dev && !parent->dev->bus_id[0] && !parent->users) + return; + + /* <nest spaces> name <pad to end> */ + memset(buf, ' ', sizeof(buf) - 1); + buf[sizeof(buf) - 1] = 0; + i = strlen(parent->name); + memcpy(buf + nest, parent->name, + min(i, (unsigned)(sizeof(buf) - 1 - nest))); + + seq_printf(r->s, "%s%c users=%2d %-3s %9ld Hz", + buf, parent->set_parent ? '*' : ' ', + parent->users, + parent->users ? "on" : "off", /* NOTE: not-paranoid!! */ + clk_get_rate(parent)); + if (parent->dev) + seq_printf(r->s, ", for %s", parent->dev->bus_id); + seq_printf(r->s, "\n"); + + /* cost of this scan is small, but not linear... */ + r->nest = nest + NEST_DELTA; + for (i = 3; i < at32_nr_clocks; i++) { + clk = at32_clock_list[i]; + if (clk->parent == parent) + dump_clock(clk, r); + } + r->nest = nest; +} + +static int clk_show(struct seq_file *s, void *unused) +{ + struct clkinf r; + int i; + + /* show all the power manager registers */ + seq_printf(s, "MCCTRL = %8x\n", pm_readl(MCCTRL)); + seq_printf(s, "CKSEL = %8x\n", pm_readl(CKSEL)); + seq_printf(s, "CPUMASK = %8x\n", pm_readl(CPU_MASK)); + seq_printf(s, "HSBMASK = %8x\n", pm_readl(HSB_MASK)); + seq_printf(s, "PBAMASK = %8x\n", pm_readl(PBA_MASK)); + seq_printf(s, "PBBMASK = %8x\n", pm_readl(PBB_MASK)); + seq_printf(s, "PLL0 = %8x\n", pm_readl(PLL0)); + seq_printf(s, "PLL1 = %8x\n", pm_readl(PLL1)); + seq_printf(s, "IMR = %8x\n", pm_readl(IMR)); + for (i = 0; i < 8; i++) { + if (i == 5) + continue; + seq_printf(s, "GCCTRL%d = %8x\n", i, pm_readl(GCCTRL(i))); + } + + seq_printf(s, "\n"); + + /* show clock tree as derived from the three oscillators + * we "know" are at the head of the list + */ + r.s = s; + r.nest = 0; + dump_clock(at32_clock_list[0], &r); + dump_clock(at32_clock_list[1], &r); + dump_clock(at32_clock_list[2], &r); + + return 0; +} + +static int clk_open(struct inode *inode, struct file *file) +{ + return single_open(file, clk_show, NULL); +} + +static const struct file_operations clk_operations = { + .open = clk_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init clk_debugfs_init(void) +{ + (void) debugfs_create_file("at32ap_clk", S_IFREG | S_IRUGO, + NULL, NULL, &clk_operations); + + return 0; +} +postcore_initcall(clk_debugfs_init); + +#endif diff --git a/arch/avr32/mach-at32ap/hsmc.c b/arch/avr32/mach-at32ap/hsmc.c index 5e22a750632b..704607fbcc69 100644 --- a/arch/avr32/mach-at32ap/hsmc.c +++ b/arch/avr32/mach-at32ap/hsmc.c @@ -29,16 +29,25 @@ struct hsmc { static struct hsmc *hsmc; -int smc_set_configuration(int cs, const struct smc_config *config) +void smc_set_timing(struct smc_config *config, + const struct smc_timing *timing) { + int recover; + int cycle; + unsigned long mul; - unsigned long offset; - u32 setup, pulse, cycle, mode; - if (!hsmc) - return -ENODEV; - if (cs >= NR_CHIP_SELECTS) - return -EINVAL; + /* Reset all SMC timings */ + config->ncs_read_setup = 0; + config->nrd_setup = 0; + config->ncs_write_setup = 0; + config->nwe_setup = 0; + config->ncs_read_pulse = 0; + config->nrd_pulse = 0; + config->ncs_write_pulse = 0; + config->nwe_pulse = 0; + config->read_cycle = 0; + config->write_cycle = 0; /* * cycles = x / T = x * f @@ -50,16 +59,102 @@ int smc_set_configuration(int cs, const struct smc_config *config) #define ns2cyc(x) ((((x) * mul) + 65535) >> 16) - setup = (HSMC_BF(NWE_SETUP, ns2cyc(config->nwe_setup)) - | HSMC_BF(NCS_WR_SETUP, ns2cyc(config->ncs_write_setup)) - | HSMC_BF(NRD_SETUP, ns2cyc(config->nrd_setup)) - | HSMC_BF(NCS_RD_SETUP, ns2cyc(config->ncs_read_setup))); - pulse = (HSMC_BF(NWE_PULSE, ns2cyc(config->nwe_pulse)) - | HSMC_BF(NCS_WR_PULSE, ns2cyc(config->ncs_write_pulse)) - | HSMC_BF(NRD_PULSE, ns2cyc(config->nrd_pulse)) - | HSMC_BF(NCS_RD_PULSE, ns2cyc(config->ncs_read_pulse))); - cycle = (HSMC_BF(NWE_CYCLE, ns2cyc(config->write_cycle)) - | HSMC_BF(NRD_CYCLE, ns2cyc(config->read_cycle))); + if (timing->ncs_read_setup > 0) + config->ncs_read_setup = ns2cyc(timing->ncs_read_setup); + + if (timing->nrd_setup > 0) + config->nrd_setup = ns2cyc(timing->nrd_setup); + + if (timing->ncs_write_setup > 0) + config->ncs_write_setup = ns2cyc(timing->ncs_write_setup); + + if (timing->nwe_setup > 0) + config->nwe_setup = ns2cyc(timing->nwe_setup); + + if (timing->ncs_read_pulse > 0) + config->ncs_read_pulse = ns2cyc(timing->ncs_read_pulse); + + if (timing->nrd_pulse > 0) + config->nrd_pulse = ns2cyc(timing->nrd_pulse); + + if (timing->ncs_write_pulse > 0) + config->ncs_write_pulse = ns2cyc(timing->ncs_write_pulse); + + if (timing->nwe_pulse > 0) + config->nwe_pulse = ns2cyc(timing->nwe_pulse); + + if (timing->read_cycle > 0) + config->read_cycle = ns2cyc(timing->read_cycle); + + if (timing->write_cycle > 0) + config->write_cycle = ns2cyc(timing->write_cycle); + + /* Extend read cycle in needed */ + if (timing->ncs_read_recover > 0) + recover = ns2cyc(timing->ncs_read_recover); + else + recover = 1; + + cycle = config->ncs_read_setup + config->ncs_read_pulse + recover; + + if (config->read_cycle < cycle) + config->read_cycle = cycle; + + /* Extend read cycle in needed */ + if (timing->nrd_recover > 0) + recover = ns2cyc(timing->nrd_recover); + else + recover = 1; + + cycle = config->nrd_setup + config->nrd_pulse + recover; + + if (config->read_cycle < cycle) + config->read_cycle = cycle; + + /* Extend write cycle in needed */ + if (timing->ncs_write_recover > 0) + recover = ns2cyc(timing->ncs_write_recover); + else + recover = 1; + + cycle = config->ncs_write_setup + config->ncs_write_pulse + recover; + + if (config->write_cycle < cycle) + config->write_cycle = cycle; + + /* Extend write cycle in needed */ + if (timing->nwe_recover > 0) + recover = ns2cyc(timing->nwe_recover); + else + recover = 1; + + cycle = config->nwe_setup + config->nwe_pulse + recover; + + if (config->write_cycle < cycle) + config->write_cycle = cycle; +} +EXPORT_SYMBOL(smc_set_timing); + +int smc_set_configuration(int cs, const struct smc_config *config) +{ + unsigned long offset; + u32 setup, pulse, cycle, mode; + + if (!hsmc) + return -ENODEV; + if (cs >= NR_CHIP_SELECTS) + return -EINVAL; + + setup = (HSMC_BF(NWE_SETUP, config->nwe_setup) + | HSMC_BF(NCS_WR_SETUP, config->ncs_write_setup) + | HSMC_BF(NRD_SETUP, config->nrd_setup) + | HSMC_BF(NCS_RD_SETUP, config->ncs_read_setup)); + pulse = (HSMC_BF(NWE_PULSE, config->nwe_pulse) + | HSMC_BF(NCS_WR_PULSE, config->ncs_write_pulse) + | HSMC_BF(NRD_PULSE, config->nrd_pulse) + | HSMC_BF(NCS_RD_PULSE, config->ncs_read_pulse)); + cycle = (HSMC_BF(NWE_CYCLE, config->write_cycle) + | HSMC_BF(NRD_CYCLE, config->read_cycle)); switch (config->bus_width) { case 1: diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index 1eb99b814f5b..d61a02da898c 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -110,6 +110,10 @@ void __init at32_select_gpio(unsigned int pin, unsigned long flags) pio_writel(pio, SODR, mask); else pio_writel(pio, CODR, mask); + if (flags & AT32_GPIOF_MULTIDRV) + pio_writel(pio, MDER, mask); + else + pio_writel(pio, MDDR, mask); pio_writel(pio, PUDR, mask); pio_writel(pio, OER, mask); } else { diff --git a/arch/avr32/mach-at32ap/pm.h b/arch/avr32/mach-at32ap/pm.h index a1f8aced0a8c..47efd0d1951f 100644 --- a/arch/avr32/mach-at32ap/pm.h +++ b/arch/avr32/mach-at32ap/pm.h @@ -4,6 +4,14 @@ #ifndef __ARCH_AVR32_MACH_AT32AP_PM_H__ #define __ARCH_AVR32_MACH_AT32AP_PM_H__ +/* + * We can reduce the code size a bit by using a constant here. Since + * this file is only used on AVR32 AP CPUs with segmentation enabled, + * it's safe to not use ioremap. Generic drivers should of course + * never do this. + */ +#define AT32_PM_BASE 0xfff00000 + /* PM register offsets */ #define PM_MCCTRL 0x0000 #define PM_CKSEL 0x0004 diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index 82cf70854b90..480760bde63f 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -224,19 +224,9 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD -static int keep_initrd; - void free_initrd_mem(unsigned long start, unsigned long end) { - if (!keep_initrd) - free_area(start, end, "initrd"); -} - -static int __init keepinitrd_setup(char *__unused) -{ - keep_initrd = 1; - return 1; + free_area(start, end, "initrd"); } -__setup("keepinitrd", keepinitrd_setup); #endif |