diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2015-05-18 07:02:25 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-05-19 15:31:31 +0200 |
| commit | b83ddac80553ae001b4daa412e386e00d45d0bbb (patch) | |
| tree | 535a3d59ca242db58ac6371d309574d0f06a5c26 /arch/arm/imx-common/cpu.c | |
| parent | 9b9449c3e2809994d260f4f783b98652e7b6353b (diff) | |
imx: mx6: display max cpu frequency in print_cpuinfo()
Display the max CPU frequency as well as the current running CPU frequency
if the max CPU frequency is available and differs from the current CPU
frequency.
Before:
CPU: Freescale i.MX6Q rev1.2 at 792 MHz
After - using an 800MHz IMX6DL (running at its max)
CPU: Freescale i.MX6DL rev1.1 at 792 MHz
After - using a 1GHz IMX6Q (not running at its max):
CPU: Freescale i.MX6Q rev1.2 996 MHz (running at 792 MHz)
Cc: Stefan Roese <sr@denx.de>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Jon Nettleton <jon.nettleton@gmail.com>
Cc: Jason Liu <r64343@freescale.com>
Cc: Ye Li <b37916@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Markus Niebel <Markus.Niebel@tq-group.com>
Cc: Peng Fan <b51431@freescale.com>
Tested-by: Nikolay Dimitrov <picmaster@mail.bg>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'arch/arm/imx-common/cpu.c')
| -rw-r--r-- | arch/arm/imx-common/cpu.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c index 0cd08cb951..37472eadfc 100644 --- a/arch/arm/imx-common/cpu.c +++ b/arch/arm/imx-common/cpu.c @@ -144,7 +144,7 @@ const char *get_imx_type(u32 imxtype) int print_cpuinfo(void) { - u32 cpurev; + u32 cpurev, max_freq; #if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL) struct udevice *thermal_dev; @@ -153,11 +153,25 @@ int print_cpuinfo(void) cpurev = get_cpu_rev(); +#if defined(CONFIG_MX6) + printf("CPU: Freescale i.MX%s rev%d.%d", + get_imx_type((cpurev & 0xFF000) >> 12), + (cpurev & 0x000F0) >> 4, + (cpurev & 0x0000F) >> 0); + max_freq = get_cpu_speed_grade_hz(); + if (!max_freq || max_freq == mxc_get_clock(MXC_ARM_CLK)) { + printf(" at %dMHz\n", mxc_get_clock(MXC_ARM_CLK) / 1000000); + } else { + printf(" %d MHz (running at %d MHz)\n", max_freq / 1000000, + mxc_get_clock(MXC_ARM_CLK) / 1000000); + } +#else printf("CPU: Freescale i.MX%s rev%d.%d at %d MHz\n", get_imx_type((cpurev & 0xFF000) >> 12), (cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0, mxc_get_clock(MXC_ARM_CLK) / 1000000); +#endif #if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL) ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev); |