From 4dbdb7681e243431530df0725627192a0c4aefda Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 10 Jun 2008 16:53:46 -0500 Subject: [PATCH] 85xx: expose cpu identification The current cpu identification code is used just to return the name of the processor at boot. There are some other locations that the name is useful (device tree setup). Expose the functionality to other bits of code. Also, drop the 'E' suffix and add it on by looking at the SVR version when we print this out. This is mainly to allow the most flexible use of the name. The device tree code tends to not care about the 'E' suffix. Signed-off-by: Kumar Gala --- cpu/mpc85xx/cpu.c | 76 +++++++++++++++++++------------------ include/asm-ppc/processor.h | 11 ++++++ 2 files changed, 51 insertions(+), 36 deletions(-) diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 58d23f4cce..d585e87995 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -32,38 +32,41 @@ DECLARE_GLOBAL_DATA_PTR; -struct cpu_type { - char name[15]; - u32 soc_ver; +struct cpu_type cpu_type_list [] = { + CPU_TYPE_ENTRY(8533, 8533), + CPU_TYPE_ENTRY(8533, 8533_E), + CPU_TYPE_ENTRY(8540, 8540), + CPU_TYPE_ENTRY(8541, 8541), + CPU_TYPE_ENTRY(8541, 8541_E), + CPU_TYPE_ENTRY(8543, 8543), + CPU_TYPE_ENTRY(8543, 8543_E), + CPU_TYPE_ENTRY(8544, 8544), + CPU_TYPE_ENTRY(8544, 8544_E), + CPU_TYPE_ENTRY(8545, 8545), + CPU_TYPE_ENTRY(8545, 8545_E), + CPU_TYPE_ENTRY(8547, 8547_E), + CPU_TYPE_ENTRY(8548, 8548), + CPU_TYPE_ENTRY(8548, 8548_E), + CPU_TYPE_ENTRY(8555, 8555), + CPU_TYPE_ENTRY(8555, 8555_E), + CPU_TYPE_ENTRY(8560, 8560), + CPU_TYPE_ENTRY(8567, 8567), + CPU_TYPE_ENTRY(8567, 8567_E), + CPU_TYPE_ENTRY(8568, 8568), + CPU_TYPE_ENTRY(8568, 8568_E), + CPU_TYPE_ENTRY(8572, 8572), + CPU_TYPE_ENTRY(8572, 8572_E), }; -#define CPU_TYPE_ENTRY(x) {#x, SVR_##x} +struct cpu_type *identify_cpu(uint ver) +{ + int i; + for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) + if (cpu_type_list[i].soc_ver == ver) + return &cpu_type_list[i]; -struct cpu_type cpu_type_list [] = { - CPU_TYPE_ENTRY(8533), - CPU_TYPE_ENTRY(8533_E), - CPU_TYPE_ENTRY(8540), - CPU_TYPE_ENTRY(8541), - CPU_TYPE_ENTRY(8541_E), - CPU_TYPE_ENTRY(8543), - CPU_TYPE_ENTRY(8543_E), - CPU_TYPE_ENTRY(8544), - CPU_TYPE_ENTRY(8544_E), - CPU_TYPE_ENTRY(8545), - CPU_TYPE_ENTRY(8545_E), - CPU_TYPE_ENTRY(8547_E), - CPU_TYPE_ENTRY(8548), - CPU_TYPE_ENTRY(8548_E), - CPU_TYPE_ENTRY(8555), - CPU_TYPE_ENTRY(8555_E), - CPU_TYPE_ENTRY(8560), - CPU_TYPE_ENTRY(8567), - CPU_TYPE_ENTRY(8567_E), - CPU_TYPE_ENTRY(8568), - CPU_TYPE_ENTRY(8568_E), - CPU_TYPE_ENTRY(8572), - CPU_TYPE_ENTRY(8572_E), -}; + return NULL; +} int checkcpu (void) { @@ -74,7 +77,7 @@ int checkcpu (void) uint fam; uint ver; uint major, minor; - int i; + struct cpu_type *cpu; #ifdef CONFIG_DDR_CLK_FREQ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); u32 ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9; @@ -89,14 +92,15 @@ int checkcpu (void) puts("CPU: "); - for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) - if (cpu_type_list[i].soc_ver == ver) { - puts(cpu_type_list[i].name); - break; - } + cpu = identify_cpu(ver); + if (cpu) { + puts(cpu->name); - if (i == ARRAY_SIZE(cpu_type_list)) + if (svr & 0x80000) + puts("E"); + } else { puts("Unknown"); + } printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h index 8bdfb9ddf3..61a0d053e2 100644 --- a/include/asm-ppc/processor.h +++ b/include/asm-ppc/processor.h @@ -960,6 +960,17 @@ n: #define SR15 15 #ifndef __ASSEMBLY__ + +struct cpu_type { + char name[15]; + u32 soc_ver; +}; + +struct cpu_type *identify_cpu(uint ver); + +#define CPU_TYPE_ENTRY(n, v) \ + { .name = #n, .soc_ver = SVR_##v, } + #ifndef CONFIG_MACH_SPECIFIC extern int _machine; extern int have_of; -- 2.39.5