diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.31/001-s3c-cpu.patch')
| -rw-r--r-- | target/linux/s3c24xx/patches-2.6.31/001-s3c-cpu.patch | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.31/001-s3c-cpu.patch b/target/linux/s3c24xx/patches-2.6.31/001-s3c-cpu.patch new file mode 100644 index 0000000000..3f126ac6aa --- /dev/null +++ b/target/linux/s3c24xx/patches-2.6.31/001-s3c-cpu.patch @@ -0,0 +1,248 @@ +diff --git a/arch/arm/plat-s3c/include/mach/cpu.h b/arch/arm/plat-s3c/include/mach/cpu.h +new file mode 100644 +index 0000000..cd260b1 +--- /dev/null ++++ b/arch/arm/plat-s3c/include/mach/cpu.h +@@ -0,0 +1,165 @@ ++/* ++ * arch/arm/plat-s3c/include/mach/cpu.h ++ * ++ * S3C cpu type detection ++ * ++ * Copyright (C) 2008 Samsung Electronics ++ * Kyungmin Park <kyungmin.park@samsung.com> ++ * ++ * Derived from OMAP cpu.h ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ++ */ ++ ++#ifndef __ASM_ARCH_S3C_CPU_H ++#define __ASM_ARCH_S3C_CPU_H ++ ++extern unsigned int system_rev; ++ ++#define S3C_SYSTEM_REV_ATAG (system_rev & 0xffff) ++#define S3C_SYSTEM_REV_CPU (system_rev & 0xffff0000) ++ ++/* ++ * cpu_is_s3c24xx(): True for s3c2400, s3c2410, s3c2440 and so on ++ * cpu_is_s3c241x(): True fro s3c2410, s3c2412 ++ * cpu_is_s3c244x(): True fro s3c2440, s3c2442, s3c2443 ++ * cpu_is_s3c64xx(): True for s3c6400, s3c6410 ++ */ ++#define GET_S3C_CLASS ((system_rev >> 24) & 0xff) ++ ++#define IS_S3C_CLASS(class, id) \ ++static inline int is_s3c ##class (void) \ ++{ \ ++ return (GET_S3C_CLASS == (id)) ? 1 : 0; \ ++} ++ ++#define GET_S3C_SUBCLASS ((system_rev >> 20) & 0xfff) ++ ++#define IS_S3C_SUBCLASS(subclass, id) \ ++static inline int is_s3c ##subclass (void) \ ++{ \ ++ return (GET_S3C_SUBCLASS == (id)) ? 1 : 0; \ ++} ++ ++IS_S3C_CLASS(24xx, 0x24) ++IS_S3C_CLASS(64xx, 0x64) ++ ++IS_S3C_SUBCLASS(241x, 0x241) ++IS_S3C_SUBCLASS(244x, 0x244) ++ ++#define cpu_is_s3c24xx() 0 ++#define cpu_is_s3c241x() 0 ++#define cpu_is_s3c244x() 0 ++#define cpu_is_s3c64xx() 0 ++ ++#if defined(CONFIG_ARCH_S3C2410) ++# undef cpu_is_s3c24xx ++# undef cpu_is_s3c241x ++# undef cpu_is_s3c244x ++# define cpu_is_s3c24xx() is_s3c24xx() ++# define cpu_is_s3c241x() is_s3c241x() ++# define cpu_is_s3c244x() is_s3c244x() ++#endif ++ ++#if defined(CONFIG_ARCH_S3C64XX) ++# undef cpu_is_s3c64xx ++# define cpu_is_s3c64xx() is_s3c64xx() ++#endif ++ ++/* ++ * Macros to detect individual cpu types. ++ * cpu_is_s3c2410(): True for s3c2410 ++ * cpu_is_s3c2440(): True for s3c2440 ++ * cpu_is_s3c6400(): True for s3c6400 ++ * cpu_is_s3c6410(): True for s3c6410 ++ * ++ * Exception: ++ * Store Revision A to 1 ++ * s3c2410a -> s3c2411 ++ * s3c2440a -> s3c2441 ++ */ ++ ++#define GET_S3C_TYPE ((system_rev >> 16) & 0xffff) ++ ++#define IS_S3C_TYPE(type, id) \ ++static inline int is_s3c ##type (void) \ ++{ \ ++ return (GET_S3C_TYPE == (id)) ? 1 : 0; \ ++} ++ ++IS_S3C_TYPE(2400, 0x2400) ++IS_S3C_TYPE(2410, 0x2410) ++IS_S3C_TYPE(2410a, 0x2411) ++IS_S3C_TYPE(2412, 0x2412) ++IS_S3C_TYPE(2440, 0x2440) ++IS_S3C_TYPE(2440a, 0x2441) ++IS_S3C_TYPE(2442, 0x2442) ++IS_S3C_TYPE(2443, 0x2443) ++IS_S3C_TYPE(6400, 0x6400) ++IS_S3C_TYPE(6410, 0x6410) ++ ++#define cpu_is_s3c2400() 0 ++#define cpu_is_s3c2410() 0 ++#define cpu_is_s3c2410a() 0 ++#define cpu_is_s3c2412() 0 ++#define cpu_is_s3c2440() 0 ++#define cpu_is_s3c2440a() 0 ++#define cpu_is_s3c2442() 0 ++#define cpu_is_s3c2443() 0 ++#define cpu_is_s3c6400() 0 ++#define cpu_is_s3c6410() 0 ++ ++#if defined(CONFIG_ARCH_S3C2410) ++# undef cpu_is_s3c2400 ++# define cpu_is_s3c2400() is_s3c2400() ++#endif ++ ++#if defined(CONFIG_CPU_S3C2410) ++# undef cpu_is_s3c2410 ++# undef cpu_is_s3c2410a ++# define cpu_is_s3c2410() is_s3c2410() ++# define cpu_is_s3c2410a() is_s3c2410a() ++#endif ++ ++#if defined(CONFIG_CPU_S3C2412) ++# undef cpu_is_s3c2412 ++# define cpu_is_s3c2412() is_s3c2412() ++#endif ++ ++#if defined(CONFIG_CPU_S3C2440) ++# undef cpu_is_s3c2440 ++# undef cpu_is_s3c2440a ++# define cpu_is_s3c2440() is_s3c2440() ++# define cpu_is_s3c2440a() is_s3c2440a() ++#endif ++ ++#if defined(CONFIG_CPU_S3C2442) ++# undef cpu_is_s3c2442 ++# define cpu_is_s3c2442() is_s3c2442() ++#endif ++ ++#if defined(CONFIG_CPU_S3C2443) ++# undef cpu_is_s3c2443 ++# define cpu_is_s3c2443() is_s3c2443() ++#endif ++ ++#if defined(CONFIG_ARCH_S3C64XX) ++# undef cpu_is_s3c6400 ++# undef cpu_is_s3c6410 ++# define cpu_is_s3c6400() is_s3c6400() ++# define cpu_is_s3c6410() is_s3c6410() ++#endif ++ ++#endif +diff --git a/arch/arm/plat-s3c/init.c b/arch/arm/plat-s3c/init.c +index 6790edf..c1ddac1 100644 +--- a/arch/arm/plat-s3c/init.c ++++ b/arch/arm/plat-s3c/init.c +@@ -31,6 +31,34 @@ + + static struct cpu_table *cpu; + ++static void __init set_system_rev(unsigned int idcode) ++{ ++ /* ++ * system_rev encoding is as follows ++ * system_rev & 0xff000000 -> S3C Class (24xx/64xx) ++ * system_rev & 0xfff00000 -> S3C Sub Class (241x/244x) ++ * system_rev & 0xffff0000 -> S3C Type (2410/2440/6400/6410) ++ * ++ * Remaining[15:0] are preserved from the value set by ATAG ++ * ++ * Exception: ++ * Store Revision A to 1 such as ++ * s3c2410A to s3c2411 ++ * s3c2440A to s3c2441 ++ */ ++ ++ system_rev &= 0xffff; ++ system_rev |= (idcode & 0x0ffff000) << 4; ++ ++ if (idcode == 0x32410002 || idcode == 0x32440001) ++ system_rev |= (0x1 << 16); ++ if (idcode == 0x32440aaa /* s3c2442 */ ++ || idcode == 0x32440aab) /* s3c2442b */ ++ system_rev |= (0x2 << 16); ++ if (idcode == 0x0) /* s3c2400 */ ++ system_rev |= (0x2400 << 16); ++} ++ + static struct cpu_table * __init s3c_lookup_cpu(unsigned long idcode, + struct cpu_table *tab, + unsigned int count) +@@ -53,6 +81,8 @@ void __init s3c_init_cpu(unsigned long idcode, + panic("Unknown S3C24XX CPU"); + } + ++ set_system_rev(idcode); ++ + printk("CPU %s (id 0x%08lx)\n", cpu->name, idcode); + + if (cpu->map_io == NULL || cpu->init == NULL) { +diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c +index 1932b7e..ed4c19f 100644 +--- a/arch/arm/plat-s3c24xx/cpu.c ++++ b/arch/arm/plat-s3c24xx/cpu.c +@@ -61,6 +61,7 @@ static const char name_s3c2410[] = "S3C2410"; + static const char name_s3c2412[] = "S3C2412"; + static const char name_s3c2440[] = "S3C2440"; + static const char name_s3c2442[] = "S3C2442"; ++static const char name_s3c2442b[] = "S3C2442B"; + static const char name_s3c2443[] = "S3C2443"; + static const char name_s3c2410a[] = "S3C2410A"; + static const char name_s3c2440a[] = "S3C2440A"; +@@ -112,6 +113,15 @@ static struct cpu_table cpu_ids[] __initdata = { + .name = name_s3c2442 + }, + { ++ .idcode = 0x32440aab, ++ .idmask = 0xffffffff, ++ .map_io = s3c244x_map_io, ++ .init_clocks = s3c244x_init_clocks, ++ .init_uarts = s3c244x_init_uarts, ++ .init = s3c2442_init, ++ .name = name_s3c2442b ++ }, ++ { + .idcode = 0x32412001, + .idmask = 0xffffffff, + .map_io = s3c2412_map_io, + |