diff options
Diffstat (limited to 'arch/mips/mti-sead3')
| -rw-r--r-- | arch/mips/mti-sead3/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-mtd.c | 3 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-pic32-bus.c | 1 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-pic32-i2c-drv.c | 36 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-setup.c | 88 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3-time.c | 9 | ||||
| -rw-r--r-- | arch/mips/mti-sead3/sead3.dts | 4 |
7 files changed, 97 insertions, 46 deletions
diff --git a/arch/mips/mti-sead3/Makefile b/arch/mips/mti-sead3/Makefile index be114209217..071786fa234 100644 --- a/arch/mips/mti-sead3/Makefile +++ b/arch/mips/mti-sead3/Makefile @@ -21,5 +21,7 @@ obj-$(CONFIG_EARLY_PRINTK) += sead3-console.o obj-$(CONFIG_USB_EHCI_HCD) += sead3-ehci.o obj-$(CONFIG_OF) += sead3.dtb.o +CFLAGS_sead3-setup.o = -I$(src)/../../../scripts/dtc/libfdt + $(obj)/%.dtb: $(obj)/%.dts $(call if_changed,dtc) diff --git a/arch/mips/mti-sead3/sead3-mtd.c b/arch/mips/mti-sead3/sead3-mtd.c index ffa35f50978..f9c890d7267 100644 --- a/arch/mips/mti-sead3/sead3-mtd.c +++ b/arch/mips/mti-sead3/sead3-mtd.c @@ -50,5 +50,4 @@ static int __init sead3_mtd_init(void) return 0; } - -module_init(sead3_mtd_init) +device_initcall(sead3_mtd_init); diff --git a/arch/mips/mti-sead3/sead3-pic32-bus.c b/arch/mips/mti-sead3/sead3-pic32-bus.c index eb2bf936d10..3b12aa5a7c8 100644 --- a/arch/mips/mti-sead3/sead3-pic32-bus.c +++ b/arch/mips/mti-sead3/sead3-pic32-bus.c @@ -8,7 +8,6 @@ #include <linux/delay.h> #include <linux/kernel.h> #include <linux/spinlock.h> -#include <linux/init.h> #include <linux/io.h> #include <linux/errno.h> diff --git a/arch/mips/mti-sead3/sead3-pic32-i2c-drv.c b/arch/mips/mti-sead3/sead3-pic32-i2c-drv.c index b921e5ec507..80fe194cfa5 100644 --- a/arch/mips/mti-sead3/sead3-pic32-i2c-drv.c +++ b/arch/mips/mti-sead3/sead3-pic32-i2c-drv.c @@ -312,16 +312,13 @@ static int i2c_platform_probe(struct platform_device *pdev) pr_debug("i2c_platform_probe\n"); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - ret = -ENODEV; - goto out; - } + if (!r) + return -ENODEV; - priv = kzalloc(sizeof(struct i2c_platform_data), GFP_KERNEL); - if (!priv) { - ret = -ENOMEM; - goto out; - } + priv = devm_kzalloc(&pdev->dev, sizeof(struct i2c_platform_data), + GFP_KERNEL); + if (!priv) + return -ENOMEM; /* FIXME: need to allocate resource in PIC32 space */ #if 0 @@ -330,10 +327,8 @@ static int i2c_platform_probe(struct platform_device *pdev) #else priv->base = r->start; #endif - if (!priv->base) { - ret = -EBUSY; - goto out_mem; - } + if (!priv->base) + return -EBUSY; priv->xfer_timeout = 200; priv->ack_timeout = 200; @@ -348,17 +343,13 @@ static int i2c_platform_probe(struct platform_device *pdev) i2c_platform_setup(priv); ret = i2c_add_numbered_adapter(&priv->adap); - if (ret == 0) { - platform_set_drvdata(pdev, priv); - return 0; + if (ret) { + i2c_platform_disable(priv); + return ret; } - i2c_platform_disable(priv); - -out_mem: - kfree(priv); -out: - return ret; + platform_set_drvdata(pdev, priv); + return 0; } static int i2c_platform_remove(struct platform_device *pdev) @@ -369,7 +360,6 @@ static int i2c_platform_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); i2c_del_adapter(&priv->adap); i2c_platform_disable(priv); - kfree(priv); return 0; } diff --git a/arch/mips/mti-sead3/sead3-setup.c b/arch/mips/mti-sead3/sead3-setup.c index b5059dc899f..e43f4801a24 100644 --- a/arch/mips/mti-sead3/sead3-setup.c +++ b/arch/mips/mti-sead3/sead3-setup.c @@ -4,11 +4,15 @@ * for more details. * * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 2013 Imagination Technologies Ltd. */ #include <linux/init.h> +#include <linux/libfdt.h> #include <linux/of_platform.h> #include <linux/of_fdt.h> -#include <linux/bootmem.h> + +#include <asm/prom.h> +#include <asm/fw/fw.h> #include <asm/mips-boards/generic.h> @@ -17,27 +21,91 @@ const char *get_system_type(void) return "MIPS SEAD3"; } +static uint32_t get_memsize_from_cmdline(void) +{ + int memsize = 0; + char *p = arcs_cmdline; + char *s = "memsize="; + + p = strstr(p, s); + if (p) { + p += strlen(s); + memsize = memparse(p, NULL); + } + + return memsize; +} + +static uint32_t get_memsize_from_env(void) +{ + int memsize = 0; + char *p; + + p = fw_getenv("memsize"); + if (p) + memsize = memparse(p, NULL); + + return memsize; +} + +static uint32_t get_memsize(void) +{ + uint32_t memsize; + + memsize = get_memsize_from_cmdline(); + if (memsize) + return memsize; + + return get_memsize_from_env(); +} + +static void __init parse_memsize_param(void) +{ + int offset; + const uint64_t *prop_value; + int prop_len; + uint32_t memsize = get_memsize(); + + if (!memsize) + return; + + offset = fdt_path_offset(__dtb_start, "/memory"); + if (offset > 0) { + uint64_t new_value; + /* + * reg contains 2 32-bits BE values, offset and size. We just + * want to replace the size value without affecting the offset + */ + prop_value = fdt_getprop(__dtb_start, offset, "reg", &prop_len); + new_value = be64_to_cpu(*prop_value); + new_value = (new_value & ~0xffffffffllu) | memsize; + fdt_setprop_inplace_u64(__dtb_start, offset, "reg", new_value); + } +} + void __init plat_mem_setup(void) { + /* allow command line/bootloader env to override memory size in DT */ + parse_memsize_param(); + /* * Load the builtin devicetree. This causes the chosen node to be * parsed resulting in our memory appearing */ - __dt_setup_arch(&__dtb_start); + __dt_setup_arch(__dtb_start); } void __init device_tree_init(void) { - unsigned long base, size; - if (!initial_boot_params) return; - base = virt_to_phys((void *)initial_boot_params); - size = be32_to_cpu(initial_boot_params->totalsize); - - /* Before we do anything, lets reserve the dt blob */ - reserve_bootmem(base, size, BOOTMEM_DEFAULT); + unflatten_and_copy_device_tree(); +} - unflatten_device_tree(); +static int __init customize_machine(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + return 0; } +arch_initcall(customize_machine); diff --git a/arch/mips/mti-sead3/sead3-time.c b/arch/mips/mti-sead3/sead3-time.c index 96b42eb9b5e..678d03d53c6 100644 --- a/arch/mips/mti-sead3/sead3-time.c +++ b/arch/mips/mti-sead3/sead3-time.c @@ -7,13 +7,12 @@ */ #include <linux/init.h> +#include <asm/cpu.h> #include <asm/setup.h> #include <asm/time.h> #include <asm/irq.h> #include <asm/mips-boards/generic.h> -unsigned long cpu_khz; - static int mips_cpu_timer_irq; static int mips_cpu_perf_irq; @@ -34,7 +33,7 @@ static void __iomem *status_reg = (void __iomem *)0xbf000410; */ static unsigned int __init estimate_cpu_frequency(void) { - unsigned int prid = read_c0_prid() & 0xffff00; + unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK); unsigned int tick = 0; unsigned int freq; unsigned int orig; @@ -91,7 +90,7 @@ static void __init plat_perf_setup(void) } } -unsigned int __cpuinit get_c0_compare_int(void) +unsigned int get_c0_compare_int(void) { if (cpu_has_vint) set_vi_handler(cp0_compare_irq, mips_timer_dispatch); @@ -108,8 +107,6 @@ void __init plat_time_init(void) pr_debug("CPU frequency %d.%02d MHz\n", (est_freq / 1000000), (est_freq % 1000000) * 100 / 1000000); - cpu_khz = est_freq / 1000; - mips_scroll_message(); plat_perf_setup(); diff --git a/arch/mips/mti-sead3/sead3.dts b/arch/mips/mti-sead3/sead3.dts index 658f4378705..e4b317d414f 100644 --- a/arch/mips/mti-sead3/sead3.dts +++ b/arch/mips/mti-sead3/sead3.dts @@ -15,10 +15,6 @@ }; }; - chosen { - bootargs = "console=ttyS1,38400 rootdelay=10 root=/dev/sda3"; - }; - memory { device_type = "memory"; reg = <0x0 0x08000000>; |