From 06c4435021f4856261edd01e2691071edeb8fa51 Mon Sep 17 00:00:00 2001 From: Haiying Wang Date: Fri, 1 May 2009 15:40:47 -0400 Subject: powerpc/qe: update risc allocation for QE Change the RISC allocation to macros instead of enum, add function to read the number of risc engines from the new property "fsl,qe-num-riscs" under the qe node in dts. Add new property "fsl,qe-num-riscs" description in qe.txt Signed-off-by: Haiying Wang Acked-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'arch/powerpc/sysdev') diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 01bce3784b0a..2533677ae5eb 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -575,3 +575,31 @@ struct qe_firmware_info *qe_get_firmware_info(void) } EXPORT_SYMBOL(qe_get_firmware_info); +unsigned int qe_get_num_of_risc(void) +{ + struct device_node *qe; + int size; + unsigned int num_of_risc = 0; + const u32 *prop; + + qe = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!qe) { + /* Older devices trees did not have an "fsl,qe" + * compatible property, so we need to look for + * the QE node by name. + */ + qe = of_find_node_by_type(NULL, "qe"); + if (!qe) + return num_of_risc; + } + + prop = of_get_property(qe, "fsl,qe-num-riscs", &size); + if (prop && size == sizeof(*prop)) + num_of_risc = *prop; + + of_node_put(qe); + + return num_of_risc; +} +EXPORT_SYMBOL(qe_get_num_of_risc); + -- cgit v1.2.3