diff options
Diffstat (limited to 'arch/arm/mach-ux500/id.c')
-rw-r--r-- | arch/arm/mach-ux500/id.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/arch/arm/mach-ux500/id.c b/arch/arm/mach-ux500/id.c deleted file mode 100644 index 1e81e990044b..000000000000 --- a/arch/arm/mach-ux500/id.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * - * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson - * License terms: GNU General Public License (GPL) version 2 - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <asm/cputype.h> -#include <asm/tlbflush.h> -#include <asm/cacheflush.h> -#include <asm/mach/map.h> - -#include "setup.h" - -#include "db8500-regs.h" -#include "id.h" - -struct dbx500_asic_id dbx500_id; - -static unsigned int __init ux500_read_asicid(phys_addr_t addr) -{ - phys_addr_t base = addr & ~0xfff; - struct map_desc desc = { - .virtual = (unsigned long)UX500_VIRT_ROM, - .pfn = __phys_to_pfn(base), - .length = SZ_16K, - .type = MT_DEVICE, - }; - - iotable_init(&desc, 1); - - /* As in devicemaps_init() */ - local_flush_tlb_all(); - flush_cache_all(); - - return readl(UX500_VIRT_ROM + (addr & 0xfff)); -} - -static void ux500_print_soc_info(unsigned int asicid) -{ - unsigned int rev = dbx500_revision(); - - pr_info("DB%4x ", dbx500_partnumber()); - - if (rev == 0x01) - pr_cont("Early Drop"); - else if (rev >= 0xA0) - pr_cont("v%d.%d" , (rev >> 4) - 0xA + 1, rev & 0xf); - else - pr_cont("Unknown"); - - pr_cont(" [%#010x]\n", asicid); -} - -static unsigned int partnumber(unsigned int asicid) -{ - return (asicid >> 8) & 0xffff; -} - -/* - * SOC MIDR ASICID ADDRESS ASICID VALUE - * DB8500ed 0x410fc090 0x9001FFF4 0x00850001 - * DB8500v1 0x411fc091 0x9001FFF4 0x008500A0 - * DB8500v1.1 0x411fc091 0x9001FFF4 0x008500A1 - * DB8500v2 0x412fc091 0x9001DBF4 0x008500B0 - * DB8520v2.2 0x412fc091 0x9001DBF4 0x008500B2 - * DB5500v1 0x412fc091 0x9001FFF4 0x005500A0 - * DB9540 0x413fc090 0xFFFFDBF4 0x009540xx - */ - -void __init ux500_setup_id(void) -{ - unsigned int cpuid = read_cpuid_id(); - unsigned int asicid = 0; - phys_addr_t addr = 0; - - switch (cpuid) { - case 0x410fc090: /* DB8500ed */ - case 0x411fc091: /* DB8500v1 */ - addr = 0x9001FFF4; - break; - - case 0x412fc091: /* DB8520 / DB8500v2 / DB5500v1 */ - asicid = ux500_read_asicid(0x9001DBF4); - if (partnumber(asicid) == 0x8500 || - partnumber(asicid) == 0x8520) - /* DB8500v2 */ - break; - - /* DB5500v1 */ - addr = 0x9001FFF4; - break; - - case 0x413fc090: /* DB9540 */ - addr = 0xFFFFDBF4; - break; - } - - if (addr) - asicid = ux500_read_asicid(addr); - - if (!asicid) { - pr_err("Unable to identify SoC\n"); - ux500_unknown_soc(); - } - - dbx500_id.process = asicid >> 24; - dbx500_id.partnumber = partnumber(asicid); - dbx500_id.revision = asicid & 0xff; - - ux500_print_soc_info(asicid); -} |