From a6750920eda7abe33b1cbc737afbdc3e13b707a4 Mon Sep 17 00:00:00 2001 From: Renaud Barbier Date: Thu, 13 Mar 2014 18:10:02 +0000 Subject: ppc: mpc85xx: add stashing support The eTSEC 2.0 devices found on the 85xx family of SoCs support stashing buffer descriptors in the L2 cache. This updates the device tree fixup for these devices to ensure that the stashing related properties used by Linux are initialised correctly. Signed-off-by: Renaud Barbier Signed-off-by: Sascha Hauer --- arch/ppc/mach-mpc85xx/fdt.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/ppc/mach-mpc85xx/fdt.c b/arch/ppc/mach-mpc85xx/fdt.c index b1da144415..1a2d780737 100644 --- a/arch/ppc/mach-mpc85xx/fdt.c +++ b/arch/ppc/mach-mpc85xx/fdt.c @@ -54,6 +54,14 @@ static void fdt_add_enet_stashing(void *fdt) of_property_write_u32(node, "rx-stash-idx", 0); node = of_find_compatible_node(node, NULL, "gianfar"); } + + node = of_find_compatible_node(fdt, NULL, "fsl,etsec2"); + while (node) { + of_set_property(node, "bd-stash", NULL, 0, 1); + of_property_write_u32(node, "rx-stash-len", 96); + of_property_write_u32(node, "rx-stash-idx", 0); + node = of_find_compatible_node(node, NULL, "fsl,etsec2"); + } } static int fdt_stdout_setup(struct device_node *blob) -- cgit v1.2.3