diff options
| -rw-r--r-- | arch/arm/mach-imx/clock-imx31.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpu-imx31.c | 49 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/mx3x.h | 11 |
3 files changed, 31 insertions, 33 deletions
diff --git a/arch/arm/mach-imx/clock-imx31.c b/arch/arm/mach-imx/clock-imx31.c index d973770b1f96..85b8885cf345 100644 --- a/arch/arm/mach-imx/clock-imx31.c +++ b/arch/arm/mach-imx/clock-imx31.c @@ -611,11 +611,11 @@ int __init mx31_clocks_init(unsigned long fref) clk_enable(&gpt_clk); clk_enable(&emi_clk); clk_enable(&iim_clk); + mx31_revision(); + clk_disable(&iim_clk); clk_enable(&serial_pll_clk); - mx31_read_cpu_rev(); - if (mx31_revision() >= IMX_CHIP_REVISION_2_0) { reg = __raw_readl(MXC_CCM_PMCR1); /* No PLL restart on DVFS switch; enable auto EMI handshake */ diff --git a/arch/arm/mach-imx/cpu-imx31.c b/arch/arm/mach-imx/cpu-imx31.c index a3780700a882..3f2345f0cdaf 100644 --- a/arch/arm/mach-imx/cpu-imx31.c +++ b/arch/arm/mach-imx/cpu-imx31.c @@ -13,45 +13,50 @@ #include <linux/io.h> #include <mach/hardware.h> #include <mach/iim.h> +#include <mach/common.h> -unsigned int mx31_cpu_rev; -EXPORT_SYMBOL(mx31_cpu_rev); +static int mx31_cpu_rev = -1; static struct { u8 srev; const char *name; - const char *v; unsigned int rev; -} mx31_cpu_type[] __initdata = { - { .srev = 0x00, .name = "i.MX31(L)", .v = "1.0", .rev = IMX_CHIP_REVISION_1_0 }, - { .srev = 0x10, .name = "i.MX31", .v = "1.1", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x11, .name = "i.MX31L", .v = "1.1", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x12, .name = "i.MX31", .v = "1.15", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x13, .name = "i.MX31L", .v = "1.15", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x14, .name = "i.MX31", .v = "1.2", .rev = IMX_CHIP_REVISION_1_2 }, - { .srev = 0x15, .name = "i.MX31L", .v = "1.2", .rev = IMX_CHIP_REVISION_1_2 }, - { .srev = 0x28, .name = "i.MX31", .v = "2.0", .rev = IMX_CHIP_REVISION_2_0 }, - { .srev = 0x29, .name = "i.MX31L", .v = "2.0", .rev = IMX_CHIP_REVISION_2_0 }, +} mx31_cpu_type[] = { + { .srev = 0x00, .name = "i.MX31(L)", .rev = IMX_CHIP_REVISION_1_0 }, + { .srev = 0x10, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x11, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x12, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x13, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x14, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_2 }, + { .srev = 0x15, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_2 }, + { .srev = 0x28, .name = "i.MX31", .rev = IMX_CHIP_REVISION_2_0 }, + { .srev = 0x29, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_2_0 }, }; -void __init mx31_read_cpu_rev(void) +static int mx31_read_cpu_rev(void) { u32 i, srev; /* read SREV register from IIM module */ srev = __raw_readl(MX31_IO_ADDRESS(MX31_IIM_BASE_ADDR + MXC_IIMSREV)); + srev &= 0xff; for (i = 0; i < ARRAY_SIZE(mx31_cpu_type); i++) if (srev == mx31_cpu_type[i].srev) { - printk(KERN_INFO - "CPU identified as %s, silicon rev %s\n", - mx31_cpu_type[i].name, mx31_cpu_type[i].v); - - mx31_cpu_rev = mx31_cpu_type[i].rev; - return; + imx_print_silicon_rev(mx31_cpu_type[i].name, + mx31_cpu_type[i].rev); + return mx31_cpu_type[i].rev; } - mx31_cpu_rev = IMX_CHIP_REVISION_UNKNOWN; + imx_print_silicon_rev("i.MX31", IMX_CHIP_REVISION_UNKNOWN); + return IMX_CHIP_REVISION_UNKNOWN; +} + +int mx31_revision(void) +{ + if (mx31_cpu_rev == -1) + mx31_cpu_rev = mx31_read_cpu_rev(); - printk(KERN_WARNING "Unknown CPU identifier. srev = %02x\n", srev); + return mx31_cpu_rev; } +EXPORT_SYMBOL(mx31_revision); diff --git a/arch/arm/plat-mxc/include/mach/mx3x.h b/arch/arm/plat-mxc/include/mach/mx3x.h index 388a407d72d6..e1850f417226 100644 --- a/arch/arm/plat-mxc/include/mach/mx3x.h +++ b/arch/arm/plat-mxc/include/mach/mx3x.h @@ -187,15 +187,6 @@ /* Mandatory defines used globally */ #if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS) - -extern unsigned int mx31_cpu_rev; -extern void mx31_read_cpu_rev(void); - -static inline int mx31_revision(void) -{ - return mx31_cpu_rev; -} - extern unsigned int mx35_cpu_rev; extern void mx35_read_cpu_rev(void); @@ -203,6 +194,8 @@ static inline int mx35_revision(void) { return mx35_cpu_rev; } + +extern int mx31_revision(void); #endif #endif /* ifndef __MACH_MX3x_H__ */ |