diff options
Diffstat (limited to 'bsps/arm')
| -rw-r--r-- | bsps/arm/imx/include/arm/freescale/imx/imx6ul_ccmreg.h | 152 | ||||
| -rw-r--r-- | bsps/arm/imx/start/bspstart.c | 20 |
2 files changed, 172 insertions, 0 deletions
diff --git a/bsps/arm/imx/include/arm/freescale/imx/imx6ul_ccmreg.h b/bsps/arm/imx/include/arm/freescale/imx/imx6ul_ccmreg.h new file mode 100644 index 0000000000..e4b597ba32 --- /dev/null +++ b/bsps/arm/imx/include/arm/freescale/imx/imx6ul_ccmreg.h @@ -0,0 +1,152 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/* + * Copyright (C) 2022 embedded brains GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef IMX6UL_CCMREG_H +#define IMX6UL_CCMREG_H + +#include <bsp/utility.h> + +typedef struct { + uint32_t ccr; + uint32_t ccdr; + uint32_t csr; + uint32_t ccsr; + uint32_t cacrr; + uint32_t cbcdr; + uint32_t cbcmr; + uint32_t cscmr1; + uint32_t cscmr2; + uint32_t cscdr1; + uint32_t cs1cdr; + uint32_t cs2cdr; + uint32_t cdcdr; + uint32_t chsccdr; + uint32_t cscdr2; + uint32_t cscdr3; + uint32_t reserved_40[2]; + uint32_t cdhipr; + uint32_t reserved_4c[2]; + uint32_t clpcr; + uint32_t cisr; + uint32_t cimr; + uint32_t ccosr; + uint32_t cgpr; + uint32_t ccgr0; + uint32_t ccgr1; + uint32_t ccgr2; + uint32_t ccgr3; + uint32_t ccgr4; + uint32_t ccgr5; + uint32_t ccgr6; + uint32_t reserved_84[1]; + uint32_t cmeor; +} imx6ul_ccm; + +typedef struct { + uint32_t pll_arm; + uint32_t pll_arm_set; + uint32_t pll_arm_clr; + uint32_t pll_arm_tog; + uint32_t pll_usb1; + uint32_t pll_usb1_set; + uint32_t pll_usb1_clr; + uint32_t pll_usb1_tog; + uint32_t pll_usb2; + uint32_t pll_usb2_set; + uint32_t pll_usb2_clr; + uint32_t pll_usb2_tog; + uint32_t pll_sys; + uint32_t pll_sys_set; + uint32_t pll_sys_clr; + uint32_t pll_sys_tog; + uint32_t pll_sys_ss; + uint32_t reserved_44[3]; + uint32_t pll_sys_num; + uint32_t reserved_54[3]; + uint32_t pll_sys_denom; + uint32_t reserved_64[3]; + uint32_t pll_audio; + uint32_t pll_audio_set; + uint32_t pll_audio_clr; + uint32_t pll_audio_tog; + uint32_t pll_audio_num; + uint32_t reserved_84[3]; + uint32_t pll_audio_denom; + uint32_t reserved_94[3]; + uint32_t pll_video; + uint32_t pll_video_set; + uint32_t pll_video_clr; + uint32_t pll_video_tog; + uint32_t pll_video_num; + uint32_t reserved_b4[3]; + uint32_t pll_video_denom; + uint32_t reserved_c4[7]; + uint32_t pll_enet; +#define IMX6UL_CCM_ANALOG_PLL_ENET_LOCK BSP_BIT32(31) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET_25M_REF_EN BSP_BIT32(21) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET2_125M_EN BSP_BIT32(20) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENABLE_125M BSP_BIT32(19) +#define IMX6UL_CCM_ANALOG_PLL_ENET_PFD_OFFSET_EN BSP_BIT32(18) +#define IMX6UL_CCM_ANALOG_PLL_ENET_BYPASS BSP_BIT32(16) +#define IMX6UL_CCM_ANALOG_PLL_ENET_BYPASS_CLK_SRC(val) BSP_FLD32(val, 14, 15) +#define IMX6UL_CCM_ANALOG_PLL_ENET_BYPASS_CLK_SRC_GET(val) BSP_FLD32GET(val, 14, 15) +#define IMX6UL_CCM_ANALOG_PLL_ENET_BYPASS_CLK_SRC_SET(val) BSP_FLD32SET(val, 14, 15) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET1_125M_EN BSP_BIT32(13) +#define IMX6UL_CCM_ANALOG_PLL_ENET_POWERDOWN BSP_BIT32(12) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET1_DIV_SELECT(val) BSP_FLD32(val, 3, 2) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET1_DIV_SELECT_GET(val) BSP_FLD32GET(val, 3, 2) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET1_DIV_SELECT_SET(val) BSP_FLD32SET(val, 3, 2) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET0_DIV_SELECT(val) BSP_FLD32(val, 0, 1) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET0_DIV_SELECT_GET(val) BSP_FLD32GET(val, 0, 1) +#define IMX6UL_CCM_ANALOG_PLL_ENET_ENET0_DIV_SELECT_SET(val) BSP_FLD32SET(val, 0, 1) + uint32_t pll_enet_set; + uint32_t pll_enet_clr; + uint32_t pll_enet_tog; + uint32_t pfd_480; + uint32_t pfd_480_set; + uint32_t pfd_480_clr; + uint32_t pfd_480_tog; + uint32_t pfd_528; + uint32_t pfd_528_set; + uint32_t pfd_528_clr; + uint32_t pfd_528_tog; + uint32_t reserved_110[16]; + uint32_t misc0; + uint32_t misc0_set; + uint32_t misc0_clr; + uint32_t misc0_tog; + uint32_t misc1; + uint32_t misc1_set; + uint32_t misc1_clr; + uint32_t misc1_tog; + uint32_t misc2; + uint32_t misc2_set; + uint32_t misc2_clr; + uint32_t misc2_tog; +} imx6ul_ccm_analog; + +#endif /* IMX6UL_CCMREG_H */ diff --git a/bsps/arm/imx/start/bspstart.c b/bsps/arm/imx/start/bspstart.c index 04d48d1558..552935ee69 100644 --- a/bsps/arm/imx/start/bspstart.c +++ b/bsps/arm/imx/start/bspstart.c @@ -14,6 +14,7 @@ #include <bsp/linker-symbols.h> #include <dev/clock/arm-generic-timer.h> #include <libcpu/arm-cp15.h> +#include <arm/freescale/imx/imx6ul_ccmreg.h> #include <libfdt.h> @@ -161,6 +162,24 @@ static void imx_find_gic(const void *fdt) #endif } +static void imx_ccm_enable_eth2_clk(void) +{ + const void *fdt = bsp_fdt_get(); + + if (imx_is_imx6(fdt)) { + int node; + volatile imx6ul_ccm_analog *ccm_analog = NULL; + + node = fdt_node_offset_by_compatible(fdt, -1, "fsl,imx6ul-anatop"); + if (node >= 0) { + ccm_analog = imx_get_reg_of_node(fdt, node); + } + if (ccm_analog != NULL) { + ccm_analog->pll_enet_set = IMX6UL_CCM_ANALOG_PLL_ENET_ENET2_125M_EN; + } + } +} + void bsp_start(void) { imx_find_gic(bsp_fdt_get()); @@ -169,4 +188,5 @@ void bsp_start(void) bsp_section_nocacheheap_begin, (uintptr_t) bsp_section_nocacheheap_size ); + imx_ccm_enable_eth2_clk(); } |