diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2011-10-14 16:26:06 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-10-18 00:37:31 -0500 |
| commit | f81f19fafaa8e88649e252a6d84096c83e682853 (patch) | |
| tree | 6e34597030279366841e3521fefa2827641df762 /arch/powerpc/cpu | |
| parent | 2a523f524090d7fc5600ece9f12d7c955db567d7 (diff) | |
powerpc/85xx: Update USB device tree status based on pin settings
For P3060 and P4080, USB pins are multiplexed with other functions.
Update the device tree status for USB ports based on setting of
RCW[EC1] & RCW[EC2] which describe if pins are muxed to usb.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/cpu')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/fdt.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index 9d2d76956e..9d31568412 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -537,6 +537,27 @@ void fdt_fixup_fman_firmware(void *blob) #define fdt_fixup_fman_firmware(x) #endif +#if defined(CONFIG_PPC_P4080) || defined(CONFIG_PPC_P3060) +static void fdt_fixup_usb(void *fdt) +{ + ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + u32 rcwsr11 = in_be32(&gur->rcwsr[11]); + int off; + + off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-mph"); + if ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) != + FSL_CORENET_RCWSR11_EC1_FM1_USB1) + fdt_status_disabled(fdt, off); + + off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-dr"); + if ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) != + FSL_CORENET_RCWSR11_EC2_USB2) + fdt_status_disabled(fdt, off); +} +#else +#define fdt_fixup_usb(x) +#endif + void ft_cpu_setup(void *blob, bd_t *bd) { int off; @@ -641,6 +662,8 @@ void ft_cpu_setup(void *blob, bd_t *bd) do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0", "clock_freq", gd->bus_clk, 1); + + fdt_fixup_usb(blob); } /* |