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author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
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committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
commit | 2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch) | |
tree | 726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /arch/arm/plat-s3c24xx/cpu.c | |
parent | e12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff) | |
parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
download | linux-fsl-qoriq-2ca1a615835d9f4990f42102ab1f2ef434e7e89c.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
Diffstat (limited to 'arch/arm/plat-s3c24xx/cpu.c')
-rw-r--r-- | arch/arm/plat-s3c24xx/cpu.c | 142 |
1 files changed, 3 insertions, 139 deletions
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 22a3295..542062f 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -30,7 +30,6 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/io.h> -#include <linux/delay.h> #include <mach/hardware.h> #include <asm/irq.h> @@ -55,16 +54,6 @@ #include <plat/s3c2442.h> #include <plat/s3c2443.h> -struct cpu_table { - unsigned long idcode; - unsigned long idmask; - void (*map_io)(struct map_desc *mach_desc, int size); - void (*init_uarts)(struct s3c2410_uartcfg *cfg, int no); - void (*init_clocks)(int xtal); - int (*init)(void); - const char *name; -}; - /* table of supported CPUs */ static const char name_s3c2400[] = "S3C2400"; @@ -169,23 +158,7 @@ static struct map_desc s3c_iodesc[] __initdata = { IODESC_ENT(UART) }; -static struct cpu_table * __init s3c_lookup_cpu(unsigned long idcode) -{ - struct cpu_table *tab; - int count; - - tab = cpu_ids; - for (count = 0; count < ARRAY_SIZE(cpu_ids); count++, tab++) { - if ((idcode & tab->idmask) == tab->idcode) - return tab; - } - - return NULL; -} - -/* cpu information */ - -static struct cpu_table *cpu; +/* read cpu identificaiton code */ static unsigned long s3c24xx_read_idcode_v5(void) { @@ -231,6 +204,7 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size) unsigned long idcode = 0x0; /* initialise the io descriptors we need for initialisation */ + iotable_init(mach_desc, size); iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc)); if (cpu_architecture() >= CPU_ARCH_ARMv5) { @@ -239,117 +213,7 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size) idcode = s3c24xx_read_idcode_v4(); } - cpu = s3c_lookup_cpu(idcode); - - if (cpu == NULL) { - printk(KERN_ERR "Unknown CPU type 0x%08lx\n", idcode); - panic("Unknown S3C24XX CPU"); - } - - printk("CPU %s (id 0x%08lx)\n", cpu->name, idcode); - - if (cpu->map_io == NULL || cpu->init == NULL) { - printk(KERN_ERR "CPU %s support not enabled\n", cpu->name); - panic("Unsupported S3C24XX CPU"); - } - arm_pm_restart = s3c24xx_pm_restart; - (cpu->map_io)(mach_desc, size); -} - -/* s3c24xx_init_clocks - * - * Initialise the clock subsystem and associated information from the - * given master crystal value. - * - * xtal = 0 -> use default PLL crystal value (normally 12MHz) - * != 0 -> PLL crystal value in Hz -*/ - -void __init s3c24xx_init_clocks(int xtal) -{ - if (xtal == 0) - xtal = 12*1000*1000; - - if (cpu == NULL) - panic("s3c24xx_init_clocks: no cpu setup?\n"); - - if (cpu->init_clocks == NULL) - panic("s3c24xx_init_clocks: cpu has no clock init\n"); - else - (cpu->init_clocks)(xtal); + s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); } - -/* uart management */ - -static int nr_uarts __initdata = 0; - -static struct s3c2410_uartcfg uart_cfgs[3]; - -/* s3c24xx_init_uartdevs - * - * copy the specified platform data and configuration into our central - * set of devices, before the data is thrown away after the init process. - * - * This also fills in the array passed to the serial driver for the - * early initialisation of the console. -*/ - -void __init s3c24xx_init_uartdevs(char *name, - struct s3c24xx_uart_resources *res, - struct s3c2410_uartcfg *cfg, int no) -{ - struct platform_device *platdev; - struct s3c2410_uartcfg *cfgptr = uart_cfgs; - struct s3c24xx_uart_resources *resp; - int uart; - - memcpy(cfgptr, cfg, sizeof(struct s3c2410_uartcfg) * no); - - for (uart = 0; uart < no; uart++, cfg++, cfgptr++) { - platdev = s3c24xx_uart_src[cfgptr->hwport]; - - resp = res + cfgptr->hwport; - - s3c24xx_uart_devs[uart] = platdev; - - platdev->name = name; - platdev->resource = resp->resources; - platdev->num_resources = resp->nr_resources; - - platdev->dev.platform_data = cfgptr; - } - - nr_uarts = no; -} - -void __init s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no) -{ - if (cpu == NULL) - return; - - if (cpu->init_uarts == NULL) { - printk(KERN_ERR "s3c24xx_init_uarts: cpu has no uart init\n"); - } else - (cpu->init_uarts)(cfg, no); -} - -static int __init s3c_arch_init(void) -{ - int ret; - - // do the correct init for cpu - - if (cpu == NULL) - panic("s3c_arch_init: NULL cpu\n"); - - ret = (cpu->init)(); - if (ret != 0) - return ret; - - ret = platform_add_devices(s3c24xx_uart_devs, nr_uarts); - return ret; -} - -arch_initcall(s3c_arch_init); |