summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorTim Harvey <tharvey@gateworks.com>2015-05-18 07:02:25 -0700
committerStefano Babic <sbabic@denx.de>2015-05-19 15:31:31 +0200
commitb83ddac80553ae001b4daa412e386e00d45d0bbb (patch)
tree535a3d59ca242db58ac6371d309574d0f06a5c26 /arch
parent9b9449c3e2809994d260f4f783b98652e7b6353b (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')
-rw-r--r--arch/arm/imx-common/cpu.c16
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);