TI has added new processors to the OMAP3 family. This patch enhances the code in sysinfo.c to detect which family member is present.
Signed-off-by: Steve Sakoman steve@sakoman.com --- arch/arm/cpu/armv7/omap3/sys_info.c | 147 ++++++++++++++++++++++----- arch/arm/include/asm/arch-omap3/cpu.h | 14 ++-- arch/arm/include/asm/arch-omap3/omap3.h | 32 ++++++- arch/arm/include/asm/arch-omap3/sys_proto.h | 2 + 4 files changed, 161 insertions(+), 34 deletions(-)
diff --git a/arch/arm/cpu/armv7/omap3/sys_info.c b/arch/arm/cpu/armv7/omap3/sys_info.c index 1df4401..549ac19 100644 --- a/arch/arm/cpu/armv7/omap3/sys_info.c +++ b/arch/arm/cpu/armv7/omap3/sys_info.c @@ -38,7 +38,10 @@ static char *rev_s[CPU_3XX_MAX_REV] = { "2.0", "2.1", "3.0", - "3.1"}; + "3.1", + "UNKNOWN", + "UNKNOWN", + "3.1.2"};
/***************************************************************** * dieid_num_r(void) - read and set die ID @@ -75,32 +78,81 @@ u32 get_cpu_type(void) }
/****************************************** - * get_cpu_rev(void) - extract version info + * get_cpu_id(void) - extract cpu id + * returns 0 for ES1.0, cpuid otherwise ******************************************/ -u32 get_cpu_rev(void) +u32 get_cpu_id(void) { - u32 cpuid = 0; struct ctrl_id *id_base; + u32 cpuid = 0;
/* * On ES1.0 the IDCODE register is not exposed on L4 * so using CPU ID to differentiate between ES1.0 and > ES1.0. */ __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid)); - if ((cpuid & 0xf) == 0x0) - return CPU_3XX_ES10; - else { + if ((cpuid & 0xf) == 0x0) { + return 0; + } else { /* Decode the IDs on > ES1.0 */ id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
- cpuid = (readl(&id_base->idcode) >> CPU_3XX_ID_SHIFT) & 0xf; + cpuid = readl(&id_base->idcode); + }
- /* Some early ES2.0 seem to report ID 0, fix this */ - if(cpuid == 0) - cpuid = CPU_3XX_ES20; + return cpuid; +}
- return cpuid; +/****************************************** + * get_cpu_family(void) - extract cpu info + ******************************************/ +u32 get_cpu_family(void) +{ + u16 hawkeye; + u32 cpu_family; + u32 cpuid = get_cpu_id(); + + if (cpuid == 0) + return CPU_OMAP34XX; + + hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff; + switch (hawkeye) { + case HAWKEYE_OMAP34XX: + cpu_family = CPU_OMAP34XX; + break; + case HAWKEYE_AM35XX: + cpu_family = CPU_AM35XX; + break; + case HAWKEYE_OMAP36XX: + cpu_family = CPU_OMAP36XX; + break; + default: + cpu_family = CPU_OMAP34XX; } + + return cpu_family; +} + +/****************************************** + * get_cpu_rev(void) - extract version info + ******************************************/ +u32 get_cpu_rev(void) +{ + u32 cpuid = get_cpu_id(); + + if (cpuid == 0) + return CPU_3XX_ES10; + else + return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf; +} + +/***************************************************************** + * get_sku_id(void) - read sku_id to get info on max clock rate + *****************************************************************/ +u32 get_sku_id(void) +{ + struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE; + return readl(&id_base->sku_id) & SKUID_CLK_MASK; }
/*************************************************************************** @@ -213,24 +265,66 @@ u32 get_device_type(void) */ int print_cpuinfo (void) { - char *cpu_s, *sec_s; + char *cpu_family_s, *cpu_s, *sec_s, *max_clk; + + switch (get_cpu_family()) { + case CPU_OMAP34XX: + cpu_family_s = "OMAP"; + switch (get_cpu_type()) { + case OMAP3503: + cpu_s = "3503"; + break; + case OMAP3515: + cpu_s = "3515"; + break; + case OMAP3525: + cpu_s = "3525"; + break; + case OMAP3530: + cpu_s = "3530"; + break; + default: + cpu_s = "35XX"; + break; + } + if ((get_cpu_rev() >= CPU_3XX_ES31) && + (get_sku_id() == SKUID_CLK_720MHZ)) + max_clk = "720 mHz"; + else + max_clk = "600 mHz";
- switch (get_cpu_type()) { - case OMAP3503: - cpu_s = "3503"; break; - case OMAP3515: - cpu_s = "3515"; + case CPU_AM35XX: + cpu_family_s = "AM"; + switch (get_cpu_type()) { + case AM3505: + cpu_s = "3505"; + break; + case AM3517: + cpu_s = "3517"; + break; + default: + cpu_s = "35XX"; + break; + } + max_clk = "600 Mhz"; break; - case OMAP3525: - cpu_s = "3525"; - break; - case OMAP3530: - cpu_s = "3530"; + case CPU_OMAP36XX: + cpu_family_s = "OMAP"; + switch (get_cpu_type()) { + case OMAP3730: + cpu_s = "3630/3730"; + break; + default: + cpu_s = "36XX/37XX"; + break; + } + max_clk = "1 Ghz"; break; default: + cpu_family_s = "OMAP"; cpu_s = "35XX"; - break; + max_clk = "600 Mhz"; }
switch (get_device_type()) { @@ -250,8 +344,9 @@ int print_cpuinfo (void) sec_s = "?"; }
- printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n", - cpu_s, sec_s, rev_s[get_cpu_rev()]); + printf("%s%s-%s ES%s, CPU-OPP2, L3-165MHz, Max CPU Clock %s\n", + cpu_family_s, cpu_s, sec_s, + rev_s[get_cpu_rev()], max_clk);
return 0; } diff --git a/arch/arm/include/asm/arch-omap3/cpu.h b/arch/arm/include/asm/arch-omap3/cpu.h index 390b007..99da756 100644 --- a/arch/arm/include/asm/arch-omap3/cpu.h +++ b/arch/arm/include/asm/arch-omap3/cpu.h @@ -60,19 +60,14 @@ struct ctrl { #endif /* __ASSEMBLY__ */ #endif /* __KERNEL_STRICT_NAMES */
-/* cpu type */ -#define OMAP3503 0x5c00 -#define OMAP3515 0x1c00 -#define OMAP3525 0x4c00 -#define OMAP3530 0x0c00 - #ifndef __KERNEL_STRICT_NAMES #ifndef __ASSEMBLY__ struct ctrl_id { u8 res1[0x4]; u32 idcode; /* 0x04 */ u32 prod_id; /* 0x08 */ - u8 res2[0x0C]; + u32 sku_id; /* 0x0c */ + u8 res2[0x08]; u32 die_id_0; /* 0x18 */ u32 die_id_1; /* 0x1C */ u32 die_id_2; /* 0x20 */ @@ -89,6 +84,11 @@ struct ctrl_id { #define HS_DEVICE 0x2 #define GP_DEVICE 0x3
+/* device speed */ +#define SKUID_CLK_MASK 0xf +#define SKUID_CLK_600MHZ 0x0 +#define SKUID_CLK_720MHZ 0x8 + #define GPMC_BASE (OMAP34XX_GPMC_BASE) #define GPMC_CONFIG_CS0 0x60 #define GPMC_CONFIG_CS0_BASE (GPMC_BASE + GPMC_CONFIG_CS0) diff --git a/arch/arm/include/asm/arch-omap3/omap3.h b/arch/arm/include/asm/arch-omap3/omap3.h index 12815f6..3957c79 100644 --- a/arch/arm/include/asm/arch-omap3/omap3.h +++ b/arch/arm/include/asm/arch-omap3/omap3.h @@ -176,11 +176,41 @@ struct gpio { #define CPU_3XX_ES21 2 #define CPU_3XX_ES30 3 #define CPU_3XX_ES31 4 -#define CPU_3XX_MAX_REV (CPU_3XX_ES31 + 1) +#define CPU_3XX_ES312 7 +#define CPU_3XX_MAX_REV 8
#define CPU_3XX_ID_SHIFT 28
#define WIDTH_8BIT 0x0000 #define WIDTH_16BIT 0x1000 /* bit pos for 16 bit in gpmc */
+/* + * Hawkeye values + */ +#define HAWKEYE_OMAP34XX 0xb7ae +#define HAWKEYE_AM35XX 0xb868 +#define HAWKEYE_OMAP36XX 0xb891 + +#define HAWKEYE_SHIFT 12 + +/* + * Define CPU families + */ +#define CPU_OMAP34XX 0x3400 /* OMAP34xx/OMAP35 devices */ +#define CPU_AM35XX 0x3500 /* AM35xx devices */ +#define CPU_OMAP36XX 0x3600 /* OMAP36xx devices */ + +/* + * Control status register values corresponding to cpu variants + */ +#define OMAP3503 0x5c00 +#define OMAP3515 0x1c00 +#define OMAP3525 0x4c00 +#define OMAP3530 0x0c00 + +#define AM3505 0x5c00 +#define AM3517 0x1c00 + +#define OMAP3730 0x0c00 + #endif diff --git a/arch/arm/include/asm/arch-omap3/sys_proto.h b/arch/arm/include/asm/arch-omap3/sys_proto.h index db7b42a..4a28ba1 100644 --- a/arch/arm/include/asm/arch-omap3/sys_proto.h +++ b/arch/arm/include/asm/arch-omap3/sys_proto.h @@ -41,7 +41,9 @@ void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base, void watchdog_init(void); void set_muxconf_regs(void);
+u32 get_cpu_family(void); u32 get_cpu_rev(void); +u32 get_sku_id(void); u32 get_mem_type(void); u32 get_sysboot_value(void); u32 is_gpmc_muxed(void);