leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

imx: mx6: display max cpu frequency in print_cpuinfo()

Browse Source 
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>
This commit is contained in:
Tim Harvey 2015-05-18 07:02:25 -07:00 committed by Stefano Babic
parent 9b9449c3e2
commit b83ddac805
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm/imx-common/cpu.c
View File

@ -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);