Signed-off-by: Helmut Raiger <helmut.rai...@hale.at>
---
arch/arm/cpu/arm1136/mx31/generic.c | 14 ++++++++++++++
arch/arm/include/asm/arch-mx31/clock.h | 1 +
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/arm1136/mx31/generic.c
b/arch/arm/cpu/arm1136/mx31/generic.c
index 248431b..b077d29 100644
--- a/arch/arm/cpu/arm1136/mx31/generic.c
+++ b/arch/arm/cpu/arm1136/mx31/generic.c
@@ -72,6 +72,18 @@ static u32 mx31_get_ipg_clk(void)
return freq;
}
+/* hsp is the clock for the ipu */
+static u32 mx31_get_hsp_clk(void)
+{
+ u32 freq = mx31_get_mcu_main_clk();
+ u32 pdr0 = __REG(CCM_PDR0);
+
+ /* divided by HSP_PODF in PDR0 */
+ freq /= ((pdr0 >> 11) & 0x7) + 1;
+
+ return freq;
+}
+
void mx31_dump_clocks(void)
{
u32 cpufreq = mx31_get_mcu_main_clk();
@@ -88,6 +100,8 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_CSPI_CLK:
case MXC_UART_CLK:
return mx31_get_ipg_clk();
+ case MXC_IPU_CLK:
+ return mx31_get_hsp_clk();
}
return -1;
}
diff --git a/arch/arm/include/asm/arch-mx31/clock.h
b/arch/arm/include/asm/arch-mx31/clock.h
index fb035c4..b0aa1ce 100644
--- a/arch/arm/include/asm/arch-mx31/clock.h
+++ b/arch/arm/include/asm/arch-mx31/clock.h
@@ -29,6 +29,7 @@ enum mxc_clock {
MXC_IPG_CLK,
MXC_CSPI_CLK,
MXC_UART_CLK,
+ MXC_IPU_CLK
};
unsigned int mxc_get_clock(enum mxc_clock clk);
--
1.7.4.4
--
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