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Diffstat (limited to '')
| -rw-r--r-- | arch/arm/plat-samsung/init.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c deleted file mode 100644 index e9acf02ef3c3..000000000000 --- a/arch/arm/plat-samsung/init.c +++ /dev/null @@ -1,173 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// Copyright (c) 2008 Simtec Electronics -// Ben Dooks <ben@simtec.co.uk> -// http://armlinux.simtec.co.uk/ -// -// S3C series CPU initialisation - -/* - * NOTE: Code in this file is not used on S3C64xx when booting with - * Device Tree support. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/serial_core.h> -#include <linux/serial_s3c.h> -#include <linux/platform_device.h> -#include <linux/of.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> - -#include <plat/cpu.h> -#include <plat/devs.h> - -static struct cpu_table *cpu; - -static struct cpu_table * __init s3c_lookup_cpu(unsigned long idcode, - struct cpu_table *tab, - unsigned int count) -{ - for (; count != 0; count--, tab++) { - if ((idcode & tab->idmask) == (tab->idcode & tab->idmask)) - return tab; - } - - return NULL; -} - -void __init s3c_init_cpu(unsigned long idcode, - struct cpu_table *cputab, unsigned int cputab_size) -{ - cpu = s3c_lookup_cpu(idcode, cputab, cputab_size); - - 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->init == NULL) { - printk(KERN_ERR "CPU %s support not enabled\n", cpu->name); - panic("Unsupported Samsung CPU"); - } - - if (cpu->map_io) - cpu->map_io(); -} - -/* 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); -} - -/* uart management */ -#if IS_ENABLED(CONFIG_SAMSUNG_ATAGS) -static int nr_uarts __initdata = 0; - -#ifdef CONFIG_SERIAL_SAMSUNG_UARTS -static struct s3c2410_uartcfg uart_cfgs[CONFIG_SERIAL_SAMSUNG_UARTS]; -#endif - -/* 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) -{ -#ifdef CONFIG_SERIAL_SAMSUNG_UARTS - 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; -#endif -} - -void __init s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no) -{ - if (cpu == NULL) - return; - - if (cpu->init_uarts == NULL && IS_ENABLED(CONFIG_SAMSUNG_ATAGS)) { - printk(KERN_ERR "s3c24xx_init_uarts: cpu has no uart init\n"); - } else - (cpu->init_uarts)(cfg, no); -} -#endif - -static int __init s3c_arch_init(void) -{ - int ret; - - /* init is only needed for ATAGS based platforms */ - if (!IS_ENABLED(CONFIG_ATAGS) || - (!soc_is_s3c24xx() && !soc_is_s3c64xx())) - return 0; - - // do the correct init for cpu - - if (cpu == NULL) { - /* Not needed when booting with device tree. */ - if (of_have_populated_dt()) - return 0; - panic("s3c_arch_init: NULL cpu\n"); - } - - ret = (cpu->init)(); - if (ret != 0) - return ret; -#if IS_ENABLED(CONFIG_SAMSUNG_ATAGS) - ret = platform_add_devices(s3c24xx_uart_devs, nr_uarts); -#endif - return ret; -} - -arch_initcall(s3c_arch_init); |