From f81f19fafaa8e88649e252a6d84096c83e682853 Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Fri, 14 Oct 2011 16:26:06 +0800 Subject: 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 Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc85xx/fdt.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'arch/powerpc/cpu') 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); } /* -- cgit