From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Jacques Hiblot Date: Fri, 4 May 2018 16:42:50 +0200 Subject: [U-Boot] [PATCH v5 4/9] board: ti: dra7xx-evm: turn on USB clocks in late init stage In-Reply-To: References: <1525444491-24324-1-git-send-email-jjhiblot@ti.com> <1525444491-24324-5-git-send-email-jjhiblot@ti.com> Message-ID: <94cee3cd-3e4a-9e7b-174d-0eba1f52b9c2@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 04/05/2018 16:38, Marek Vasut wrote: > On 05/04/2018 04:34 PM, Jean-Jacques Hiblot wrote: >> For USB ports that use the Driver Model, turn on the clocks during the >> late init stage. >> >> Signed-off-by: Jean-Jacques Hiblot >> Reviewed-by: Tom Rini >> --- >> >> Changes in v5: None >> Changes in v4: None >> Changes in v3: None >> Changes in v2: None >> >> board/ti/dra7xx/evm.c | 19 +++++++++++++++++++ >> 1 file changed, 19 insertions(+) >> >> diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c >> index 06f061c..c1e1b8e 100644 >> --- a/board/ti/dra7xx/evm.c >> +++ b/board/ti/dra7xx/evm.c >> @@ -647,6 +647,19 @@ int dram_init_banksize(void) >> return 0; >> } >> >> +#if CONFIG_IS_ENABLED(DM_USB) && CONFIG_IS_ENABLED(OF_CONTROL) >> +static int device_okay(const char *path) >> +{ >> + int node; >> + >> + node = fdt_path_offset(gd->fdt_blob, path); >> + if (node < 0) >> + return 0; >> + >> + return fdtdec_get_is_enabled(gd->fdt_blob, node); >> +} >> +#endif >> + >> int board_late_init(void) >> { >> #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG >> @@ -686,6 +699,12 @@ int board_late_init(void) >> if (board_is_dra71x_evm()) >> palmas_i2c_write_u8(LP873X_I2C_SLAVE_ADDR, 0x9, 0x7); >> #endif >> +#if CONFIG_IS_ENABLED(DM_USB) && CONFIG_IS_ENABLED(OF_CONTROL) >> + if (device_okay("/ocp/omap_dwc3_1 at 48880000")) >> + enable_usb_clocks(0); >> + if (device_okay("/ocp/omap_dwc3_2 at 488c0000")) >> + enable_usb_clocks(1); >> +#endif > Shouldnt the driver turn this on? AFAIK there is no clock driver for the OMAP. So we have to do it before the driver is probed. JJ >