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| author | Michael Trimarchi <michael@amarulasolutions.com> | 2019-12-30 17:34:03 +0530 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2020-01-07 10:26:57 +0100 |
| commit | 90d466593ff5e19ebf4f5b391680653673df237e (patch) | |
| tree | a56331f20f713b2b78e53a7422f7b149cb00fa7a | |
| parent | 8811c4d04633272be2ef6b3aeac227f150af624e (diff) | |
| download | u-boot-90d466593ff5e19ebf4f5b391680653673df237e.tar.gz u-boot-90d466593ff5e19ebf4f5b391680653673df237e.tar.bz2 u-boot-90d466593ff5e19ebf4f5b391680653673df237e.zip | |
board: engicam: Fix the ethernet clock initialization
According to the SOM and reference board the clock
can be taken from the external pin or provided from
ENET_REF_CLK. Add a new function that make the proper
set according the board type.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
| -rw-r--r-- | board/engicam/common/board.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/board/engicam/common/board.c b/board/engicam/common/board.c index 992d209cbd..6472d382c9 100644 --- a/board/engicam/common/board.c +++ b/board/engicam/common/board.c @@ -10,6 +10,8 @@ #include <env.h> #include <init.h> #include <mmc.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> #include <asm/arch/sys_proto.h> #include <watchdog.h> @@ -101,6 +103,32 @@ static enum engicam_boards engicam_board_detect(void) return -EINVAL; } +static int fixup_enet_clock(enum engicam_boards board_detected) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + int clk_internal = 0; + + switch (board_detected) { + case IMX6Q_ICORE_MIPI: + case IMX6DL_ICORE_MIPI: + clk_internal = 1; + break; + default: + break; + } + + /* set gpr1[21] to select anatop clock */ + debug("fixup_enet_clock %d\n", clk_internal); + clrsetbits_le32(&iomuxc_regs->gpr[1], 0x1 << 21, clk_internal << 21); + + if (!clk_internal) { + /* clock is external */ + return 0; + } + + return enable_fec_anatop_clock(0, ENET_50MHZ); +} + int board_late_init(void) { enum engicam_boards board_detected = IMX6Q_ICORE; @@ -133,6 +161,7 @@ int board_late_init(void) if (board_detected < 0) hang(); + fixup_enet_clock(board_detected); setenv_fdt_file(board_detected); #ifdef CONFIG_HW_WATCHDOG |