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ARM: imx: add gpt_3m clk for i.mx6qdl 

Add gpt_3m clock for i.mx6qdl, as gpt can source clock
from OSC, some i.MX6 series SOCs has fixed divider of
8 for gpt clock, so here add a fix clk of gpt_3m.

i.MX6Q TO1.0 has no gpt_3m option, so force it to be
from ipg_per.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This commit is contained in:
Anson Huang 2014-09-11 11:29:40 +08:00 committed by Shawn Guo
parent 69d9a3fe06
commit 6f11c69d35
2 changed files with 10 additions and 1 deletions
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8
arch/arm/mach-imx/clk-imx6q.c
View File

@ -245,6 +245,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6);
clk[IMX6QDL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8);
clk[IMX6QDL_CLK_TWD] = imx_clk_fixed_factor("twd", "arm", 1, 2);
clk[IMX6QDL_CLK_GPT_3M] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);
if (cpu_is_imx6dl()) {
clk[IMX6QDL_CLK_GPU2D_AXI] = imx_clk_fixed_factor("gpu2d_axi", "mmdc_ch0_axi_podf", 1, 1);
clk[IMX6QDL_CLK_GPU3D_AXI] = imx_clk_fixed_factor("gpu3d_axi", "mmdc_ch0_axi_podf", 1, 1);
@ -461,6 +462,13 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_CKO1] = imx_clk_gate("cko1", "cko1_podf", base + 0x60, 7);
clk[IMX6QDL_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24);
/*
* The gpt_3m clock is not available on i.MX6Q TO1.0. Let's point it
* to clock gpt_ipg_per to ease the gpt driver code.
*/
if (cpu_is_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0)
clk[IMX6QDL_CLK_GPT_3M] = clk[IMX6QDL_CLK_GPT_IPG_PER];
imx_check_clocks(clk, ARRAY_SIZE(clk));
clk_data.clks = clk;

3
include/dt-bindings/clock/imx6qdl-clock.h
View File

@ -247,6 +247,7 @@
#define IMX6QDL_PLL5_BYPASS 234
#define IMX6QDL_PLL6_BYPASS 235
#define IMX6QDL_PLL7_BYPASS 236
#define IMX6QDL_CLK_END 237
#define IMX6QDL_CLK_GPT_3M 237
#define IMX6QDL_CLK_END 238
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */