[MIPS] Malta: Fix for SOCitSC based Maltas

And an attempt to tidy up the core/controller differences.

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mips-boards/generic/init.c

@@ -57,7 +57,8 @@ int *_prom_argv, *_prom_envp;
 
 int init_debug = 0;
 
-unsigned int mips_revision_corid;
+int mips_revision_corid;
+int mips_revision_sconid;
 
 /* Bonito64 system controller register base. */
 unsigned long _pcictrl_bonito;
@@ -275,13 +276,38 @@ void __init prom_init(void)
 		else
 			mips_revision_corid = MIPS_REVISION_CORID_CORE_EMUL_MSC;
 	}
-	switch(mips_revision_corid) {
-		u32 start, map, mask, data;
 
+	mips_revision_sconid = MIPS_REVISION_SCONID;
+	if (mips_revision_sconid == MIPS_REVISION_SCON_OTHER) {
+		switch (mips_revision_corid) {
 		case MIPS_REVISION_CORID_QED_RM5261:
 		case MIPS_REVISION_CORID_CORE_LV:
 		case MIPS_REVISION_CORID_CORE_FPGA:
 		case MIPS_REVISION_CORID_CORE_FPGAR2:
+			mips_revision_sconid = MIPS_REVISION_SCON_GT64120;
+			break;
+		case MIPS_REVISION_CORID_CORE_EMUL_BON:
+		case MIPS_REVISION_CORID_BONITO64:
+		case MIPS_REVISION_CORID_CORE_20K:
+			mips_revision_sconid = MIPS_REVISION_SCON_BONITO;
+			break;
+		case MIPS_REVISION_CORID_CORE_MSC:
+		case MIPS_REVISION_CORID_CORE_FPGA2:
+		case MIPS_REVISION_CORID_CORE_FPGA3:
+		case MIPS_REVISION_CORID_CORE_24K:
+		case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+			mips_revision_sconid = MIPS_REVISION_SCON_SOCIT;
+			break;
+		default:
+			mips_display_message("CC Error");
+			while (1);   /* We die here... */
+		}
+	}
+
+	switch (mips_revision_sconid) {
+		u32 start, map, mask, data;
+
+	case MIPS_REVISION_SCON_GT64120:
 		/*
 		 * Setup the North bridge to do Master byte-lane swapping
 		 * when running in bigendian.
@@ -305,9 +331,7 @@ void __init prom_init(void)
 		set_io_port_base(MALTA_GT_PORT_BASE);
 		break;
 
-	case MIPS_REVISION_CORID_CORE_EMUL_BON:
+	case MIPS_REVISION_SCON_BONITO:
-	case MIPS_REVISION_CORID_BONITO64:
-	case MIPS_REVISION_CORID_CORE_20K:
 		_pcictrl_bonito_pcicfg = (unsigned long)ioremap(BONITO_PCICFG_BASE, BONITO_PCICFG_SIZE);
 
 		/*
@@ -334,13 +358,10 @@ void __init prom_init(void)
 		set_io_port_base(MALTA_BONITO_PORT_BASE);
 		break;
 
-	case MIPS_REVISION_CORID_CORE_MSC:
+	case MIPS_REVISION_SCON_SOCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_SCON_ROCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA3:
-	case MIPS_REVISION_CORID_CORE_24K:
-	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 		_pcictrl_msc = (unsigned long)ioremap(MIPS_MSC01_PCI_REG_BASE, 0x2000);
-
+	mips_pci_controller:
 		mb();
 		MSC_READ(MSC01_PCI_CFG, data);
 		MSC_WRITE(MSC01_PCI_CFG, data & ~MSC01_PCI_CFG_EN_BIT);
@@ -374,10 +395,15 @@ void __init prom_init(void)
 		set_io_port_base(MALTA_MSC_PORT_BASE);
 		break;
 
+	case MIPS_REVISION_SCON_SOCITSC:
+	case MIPS_REVISION_SCON_SOCITSCP:
+		_pcictrl_msc = (unsigned long)ioremap(MIPS_SOCITSC_PCI_REG_BASE, 0x2000);
+		goto mips_pci_controller;
+
 	default:
-		/* Unknown Core card */
+		/* Unknown system controller */
-		mips_display_message("CC Error");
+		mips_display_message("SC Error");
-		while(1);   /* We die here... */
+		while (1);   /* We die here... */
 	}
 #endif
 	board_nmi_handler_setup = mips_nmi_setup;

arch/mips/mips-boards/generic/pci.c

@@ -92,11 +92,8 @@ void __init mips_pcibios_init(void)
 	struct pci_controller *controller;
 	resource_size_t start, end, map, start1, end1, map1, map2, map3, mask;
 
-	switch (mips_revision_corid) {
+	switch (mips_revision_sconid) {
-	case MIPS_REVISION_CORID_QED_RM5261:
+	case MIPS_REVISION_SCON_GT64120:
-	case MIPS_REVISION_CORID_CORE_LV:
-	case MIPS_REVISION_CORID_CORE_FPGA:
-	case MIPS_REVISION_CORID_CORE_FPGAR2:
 		/*
 		 * Due to a bug in the Galileo system controller, we need
 		 * to setup the PCI BAR for the Galileo internal registers.
@@ -161,9 +158,7 @@ void __init mips_pcibios_init(void)
 		controller = &gt64120_controller;
 		break;
 
-	case MIPS_REVISION_CORID_BONITO64:
+	case MIPS_REVISION_SCON_BONITO:
-	case MIPS_REVISION_CORID_CORE_20K:
-	case MIPS_REVISION_CORID_CORE_EMUL_BON:
 		/* Set up resource ranges from the controller's registers.  */
 		map = BONITO_PCIMAP;
 		map1 = (BONITO_PCIMAP & BONITO_PCIMAP_PCIMAP_LO0) >>
@@ -195,11 +190,10 @@ void __init mips_pcibios_init(void)
 		controller = &bonito64_controller;
 		break;
 
-	case MIPS_REVISION_CORID_CORE_MSC:
+	case MIPS_REVISION_SCON_SOCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_SCON_ROCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA3:
+	case MIPS_REVISION_SCON_SOCITSC:
-	case MIPS_REVISION_CORID_CORE_24K:
+	case MIPS_REVISION_SCON_SOCITSCP:
-	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 		/* Set up resource ranges from the controller's registers.  */
 		MSC_READ(MSC01_PCI_SC2PMBASL, start);
 		MSC_READ(MSC01_PCI_SC2PMMSKL, mask);

arch/mips/mips-boards/malta/malta_int.c

@@ -53,25 +53,19 @@ static inline int mips_pcibios_iack(void)
 	 * Determine highest priority pending interrupt by performing
 	 * a PCI Interrupt Acknowledge cycle.
 	 */
-	switch(mips_revision_corid) {
+	switch (mips_revision_sconid) {
-	case MIPS_REVISION_CORID_CORE_MSC:
+	case MIPS_REVISION_SCON_SOCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_SCON_ROCIT:
-	case MIPS_REVISION_CORID_CORE_FPGA3:
+	case MIPS_REVISION_SCON_SOCITSC:
-	case MIPS_REVISION_CORID_CORE_24K:
+	case MIPS_REVISION_SCON_SOCITSCP:
-	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 	        MSC_READ(MSC01_PCI_IACK, irq);
 		irq &= 0xff;
 		break;
-	case MIPS_REVISION_CORID_QED_RM5261:
+	case MIPS_REVISION_SCON_GT64120:
-	case MIPS_REVISION_CORID_CORE_LV:
-	case MIPS_REVISION_CORID_CORE_FPGA:
-	case MIPS_REVISION_CORID_CORE_FPGAR2:
 		irq = GT_READ(GT_PCI0_IACK_OFS);
 		irq &= 0xff;
 		break;
-	case MIPS_REVISION_CORID_BONITO64:
+	case MIPS_REVISION_SCON_BONITO:
-	case MIPS_REVISION_CORID_CORE_20K:
-	case MIPS_REVISION_CORID_CORE_EMUL_BON:
 		/* The following will generate a PCI IACK cycle on the
 		 * Bonito controller. It's a little bit kludgy, but it
 		 * was the easiest way to implement it in hardware at
@@ -89,7 +83,7 @@ static inline int mips_pcibios_iack(void)
 		BONITO_PCIMAP_CFG = 0;
 		break;
 	default:
-	        printk("Unknown Core card, don't know the system controller.\n");
+	        printk("Unknown system controller.\n");
 		return -1;
 	}
 	return irq;
@@ -144,27 +138,21 @@ static void corehi_irqdispatch(void)
 	   Do it for the others too.
 	*/
 
-        switch(mips_revision_corid) {
+	switch (mips_revision_sconid) {
-        case MIPS_REVISION_CORID_CORE_MSC:
+        case MIPS_REVISION_SCON_SOCIT:
-        case MIPS_REVISION_CORID_CORE_FPGA2:
+	case MIPS_REVISION_SCON_ROCIT:
-        case MIPS_REVISION_CORID_CORE_FPGA3:
+	case MIPS_REVISION_SCON_SOCITSC:
-        case MIPS_REVISION_CORID_CORE_24K:
+	case MIPS_REVISION_SCON_SOCITSCP:
-        case MIPS_REVISION_CORID_CORE_EMUL_MSC:
                 ll_msc_irq();
                 break;
-        case MIPS_REVISION_CORID_QED_RM5261:
+        case MIPS_REVISION_SCON_GT64120:
-        case MIPS_REVISION_CORID_CORE_LV:
-        case MIPS_REVISION_CORID_CORE_FPGA:
-        case MIPS_REVISION_CORID_CORE_FPGAR2:
                 intrcause = GT_READ(GT_INTRCAUSE_OFS);
                 datalo = GT_READ(GT_CPUERR_ADDRLO_OFS);
                 datahi = GT_READ(GT_CPUERR_ADDRHI_OFS);
                 printk("GT_INTRCAUSE = %08x\n", intrcause);
                 printk("GT_CPUERR_ADDR = %02x%08x\n", datahi, datalo);
                 break;
-        case MIPS_REVISION_CORID_BONITO64:
+        case MIPS_REVISION_SCON_BONITO:
-        case MIPS_REVISION_CORID_CORE_20K:
-        case MIPS_REVISION_CORID_CORE_EMUL_BON:
                 pcibadaddr = BONITO_PCIBADADDR;
                 pcimstat = BONITO_PCIMSTAT;
                 intisr = BONITO_INTISR;

arch/mips/mips-boards/malta/malta_setup.c

@@ -103,9 +103,7 @@ void __init plat_mem_setup(void)
 	kgdb_config ();
 #endif
 
-	if ((mips_revision_corid == MIPS_REVISION_CORID_BONITO64) ||
+	if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) {
-	    (mips_revision_corid == MIPS_REVISION_CORID_CORE_20K) ||
-	    (mips_revision_corid == MIPS_REVISION_CORID_CORE_EMUL_BON)) {
 		char *argptr;
 
 		argptr = prom_getcmdline();

include/asm-mips/mips-boards/generic.h

@@ -73,12 +73,28 @@
  *  CoreEMUL with   Bonito   System Controller is treated like a Core20K
  *  CoreEMUL with SOC-it 101 System Controller is treated like a CoreMSC
  */
-#define MIPS_REVISION_CORID_CORE_EMUL_BON  0x63
+#define MIPS_REVISION_CORID_CORE_EMUL_BON  -1
-#define MIPS_REVISION_CORID_CORE_EMUL_MSC  0x65
+#define MIPS_REVISION_CORID_CORE_EMUL_MSC  -2
 
 #define MIPS_REVISION_CORID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 10) & 0x3f)
 
-extern unsigned int mips_revision_corid;
+extern int mips_revision_corid;
+
+#define MIPS_REVISION_SCON_OTHER	   0
+#define MIPS_REVISION_SCON_SOCITSC	   1
+#define MIPS_REVISION_SCON_SOCITSCP	   2
+
+/* Artificial SCON defines for MIPS_REVISION_SCON_OTHER */
+#define MIPS_REVISION_SCON_UNKNOWN	   -1
+#define MIPS_REVISION_SCON_GT64120	   -2
+#define MIPS_REVISION_SCON_BONITO	   -3
+#define MIPS_REVISION_SCON_BRTL		   -4
+#define MIPS_REVISION_SCON_SOCIT	   -5
+#define MIPS_REVISION_SCON_ROCIT	   -6
+
+#define MIPS_REVISION_SCONID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 24) & 0xff)
+
+extern int mips_revision_sconid;
 
 #ifdef CONFIG_PCI
 extern void mips_pcibios_init(void);

include/asm-mips/mips-boards/msc01_pci.h

@@ -208,6 +208,7 @@
  * latter, they should be moved elsewhere.
  */
 #define MIPS_MSC01_PCI_REG_BASE		0x1bd00000
+#define MIPS_SOCITSC_PCI_REG_BASE	0x1ff10000
 
 extern unsigned long _pcictrl_msc;