diff options
| author | Roger Quadros <rogerq@ti.com> | 2014-03-07 15:09:04 +0200 |
|---|---|---|
| committer | Tero Kristo <t-kristo@ti.com> | 2014-07-02 17:08:26 +0300 |
| commit | 94e72ae5dbb1aff59791e6f96e2f0416b8a82257 (patch) | |
| tree | ad3159440c83a2bbdfc43797e16d6889aaf56c88 /drivers/clk/ti | |
| parent | 49b6a5e3287cbff192791afe3085e6847238e8fc (diff) | |
| download | linux-94e72ae5dbb1aff59791e6f96e2f0416b8a82257.tar.bz2 | |
CLK: ti: dra7: Initialize USB_DPLL
USB_DPLL must be initialized and locked at boot so that
USB modules can work.
Also program USB_DLL_M2 output to half rate.
CC: Mike Turquette <mturquette@linaro.org>
CC: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Diffstat (limited to 'drivers/clk/ti')
| -rw-r--r-- | drivers/clk/ti/clk-7xx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c index e1581335937d..09dbe38e183d 100644 --- a/drivers/clk/ti/clk-7xx.c +++ b/drivers/clk/ti/clk-7xx.c @@ -18,6 +18,7 @@ #define DRA7_DPLL_ABE_DEFFREQ 361267200 #define DRA7_DPLL_GMAC_DEFFREQ 1000000000 +#define DRA7_DPLL_USB_DEFFREQ 960000000 static struct ti_dt_clk dra7xx_clks[] = { @@ -327,5 +328,15 @@ int __init dra7xx_dt_clk_init(void) if (rc) pr_err("%s: failed to configure GMAC DPLL!\n", __func__); + dpll_ck = clk_get_sys(NULL, "dpll_usb_ck"); + rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ); + if (rc) + pr_err("%s: failed to configure USB DPLL!\n", __func__); + + dpll_ck = clk_get_sys(NULL, "dpll_usb_m2_ck"); + rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ/2); + if (rc) + pr_err("%s: failed to set USB_DPLL M2 OUT\n", __func__); + return rc; } |