diff options
| author | Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com> | 2013-01-13 15:15:01 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-01-25 11:12:37 +0100 |
| commit | b7eed2076183994dbda2c19bc7fba99b65a135e3 (patch) | |
| tree | 348abd6a918ecbeb2c0f3a45182029a4a3734547 /arch/arm/mach-imx/clk-imx27.c | |
| parent | ARM: mx31: Replace clk_register_clkdev with clock DT lookup (diff) | |
| download | linux-b7eed2076183994dbda2c19bc7fba99b65a135e3.tar.xz linux-b7eed2076183994dbda2c19bc7fba99b65a135e3.zip | |
ARM: imx27: add a clock gate to activate SPLL clock
A clock gate is mandatory to activate SPLL clock needed, at least, for usb.
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/clk-imx27.c')
| -rw-r--r-- | arch/arm/mach-imx/clk-imx27.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index 4c1d1e4efc74..4f066d1383fe 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -62,7 +62,7 @@ static const char *clko_sel_clks[] = { "32k", "usb_div", "dptc", }; -static const char *ssi_sel_clks[] = { "spll", "mpll", }; +static const char *ssi_sel_clks[] = { "spll_gate", "mpll", }; enum mx27_clks { dummy, ckih, ckil, mpll, spll, mpll_main2, ahb, ipg, nfc_div, per1_div, @@ -82,7 +82,7 @@ enum mx27_clks { csi_ahb_gate, brom_ahb_gate, ata_ahb_gate, wdog_ipg_gate, usb_ipg_gate, uart6_ipg_gate, uart5_ipg_gate, uart4_ipg_gate, uart3_ipg_gate, uart2_ipg_gate, uart1_ipg_gate, ckih_div1p5, fpm, mpll_osc_sel, - mpll_sel, clk_max + mpll_sel, spll_gate, clk_max }; static struct clk *clk[clk_max]; @@ -104,6 +104,7 @@ int __init mx27_clocks_init(unsigned long fref) ARRAY_SIZE(mpll_sel_clks)); clk[mpll] = imx_clk_pllv1("mpll", "mpll_sel", CCM_MPCTL0); clk[spll] = imx_clk_pllv1("spll", "ckih", CCM_SPCTL0); + clk[spll_gate] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1); clk[mpll_main2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3); if (mx27_revision() >= IMX_CHIP_REVISION_2_0) { @@ -121,7 +122,7 @@ int __init mx27_clocks_init(unsigned long fref) clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6); clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks)); clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6); - clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3); + clk[usb_div] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 28, 3); clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks)); clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); if (mx27_revision() >= IMX_CHIP_REVISION_2_0) |