powerpc/44x/fsp2: Interrupt handling setup (9c4c3746) · Commits · 戴 / test

arch/powerpc/platforms/44x/fsp2.c

+37 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,8 @@
		#include <asm/time.h>
		#include <asm/uic.h>
		#include <asm/ppc4xx.h>
		#include <asm/dcr.h>
		#include "fsp2.h"

		static __initdata struct of_device_id fsp2_of_bus[] = {
		{ .compatible = "ibm,plb4", },
		@@ -44,10 +46,45 @@ machine_device_initcall(fsp2, fsp2_device_probe);

		static int __init fsp2_probe(void)
		{
		u32 val;
		unsigned long root = of_get_flat_dt_root();

		if (!of_flat_dt_is_compatible(root, "ibm,fsp2"))
		return 0;

		/* Clear BC_ERR and mask snoopable request plb errors. */
		val = mfdcr(DCRN_PLB6_CR0);
		val \|= 0x20000000;
		mtdcr(DCRN_PLB6_BASE, val);
		mtdcr(DCRN_PLB6_HD, 0xffff0000);
		mtdcr(DCRN_PLB6_SHD, 0xffff0000);

		/* L2 machine checks */
		mtl2(L2PLBMCKEN0, 0xffffffff);
		mtl2(L2PLBMCKEN1, 0x0000ffff);
		mtl2(L2ARRMCKEN0, 0xffffffff);
		mtl2(L2ARRMCKEN1, 0xffffffff);
		mtl2(L2ARRMCKEN2, 0xfffff000);
		mtl2(L2CPUMCKEN, 0xffffffff);
		mtl2(L2RACMCKEN0, 0xffffffff);
		mtl2(L2WACMCKEN0, 0xffffffff);
		mtl2(L2WACMCKEN1, 0xffffffff);
		mtl2(L2WACMCKEN2, 0xffffffff);
		mtl2(L2WDFMCKEN, 0xffffffff);

		/* L2 interrupts */
		mtl2(L2PLBINTEN1, 0xffff0000);

		/*
		* At a global level, enable all L2 machine checks and interrupts
		* reported by the L2 subsystems, except for the external machine check
		* input (UIC0.1).
		*/
		mtl2(L2MCKEN, 0x000007ff);
		mtl2(L2INTEN, 0x000004ff);

		/* Enable FSP-2 configuration logic parity errors */
		mtdcr(DCRN_CONF_EIR_RS, 0x80000000);
		return 1;
		}