Revision: linuxbios@linuxbios.org--devel/freebios--devel--2.0--patch-51

Creator:  Yinghai Lu <yhlu@tyan.com>

cache_as_ram for AMD and some intel


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1967 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

4 files changed, 180 insertions, 85 deletions

diff --git a/src/northbridge/intel/e7501/Config.lb b/src/northbridge/intel/e7501/Config.lb
index bce7a0b56e..59154f7ed3 100644
--- a/src/northbridge/intel/e7501/Config.lb
+++ b/src/northbridge/intel/e7501/Config.lb
@@ -1,7 +1,3 @@
-uses CONFIG_CHIP_NAME
-
-if CONFIG_CHIP_NAME
-	config chip.h
-end
+config chip.h
 
 object northbridge.o
diff --git a/src/northbridge/intel/e7501/debug.c b/src/northbridge/intel/e7501/debug.c
index 67670f9844..1c02ef7204 100644
--- a/src/northbridge/intel/e7501/debug.c
+++ b/src/northbridge/intel/e7501/debug.c
@@ -17,7 +17,7 @@ static void print_pci_devices(void)
 {
 	device_t dev;
 	for(dev = PCI_DEV(0, 0, 0); 
-		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev <= PCI_DEV(0xff, 0x1f, 0x7); 
 		dev += PCI_DEV(0,0,1)) {
 		uint32_t id;
 		id = pci_read_config32(dev, PCI_VENDOR_ID);
@@ -35,28 +35,34 @@ static void dump_pci_device(unsigned dev)
 {
 	int i;
 	print_debug_pci_dev(dev);
-	print_debug("\r\n");
 	
-	for(i = 0; i <= 255; i++) {
+	for(i = 0; i < 256; i++) {
 		unsigned char val;
 		if ((i & 0x0f) == 0) {
+#if CONFIG_USE_INIT
+                        printk_debug("\r\n%02x:",i);
+#else
+			print_debug("\r\n");
 			print_debug_hex8(i);
 			print_debug_char(':');
+#endif
 		}
 		val = pci_read_config8(dev, i);
+#if CONFIG_USE_INIT
+		printk_debug(" %02x", val);
+#else
 		print_debug_char(' ');
 		print_debug_hex8(val);
-		if ((i & 0x0f) == 0x0f) {
-			print_debug("\r\n");
-		}
+#endif
 	}
+	print_debug("\r\n");
 }
 
 static void dump_pci_devices(void)
 {
 	device_t dev;
 	for(dev = PCI_DEV(0, 0, 0); 
-		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev <= PCI_DEV(0xff, 0x1f, 0x7); 
 		dev += PCI_DEV(0,0,1)) {
 		uint32_t id;
 		id = pci_read_config32(dev, PCI_VENDOR_ID);
@@ -69,6 +75,23 @@ static void dump_pci_devices(void)
 	}
 }
 
+static void dump_pci_devices_on_bus(unsigned busn)
+{
+        device_t dev;
+        for(dev = PCI_DEV(busn, 0, 0);
+                dev <= PCI_DEV(busn, 0x1f, 0x7);
+                dev += PCI_DEV(0,0,1)) {
+                uint32_t id;
+                id = pci_read_config32(dev, PCI_VENDOR_ID);
+                if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+                        (((id >> 16) & 0xffff) == 0xffff) ||
+                        (((id >> 16) & 0xffff) == 0x0000)) {
+                        continue;
+                }
+                dump_pci_device(dev);
+        }
+}
+
 static void dump_spd_registers(const struct mem_controller *ctrl)
 {
 	int i;
@@ -78,87 +101,175 @@ static void dump_spd_registers(const struct mem_controller *ctrl)
 		device = ctrl->channel0[i];
 		if (device) {
 			int j;
+#if CONFIG_USE_INIT
+			printk_debug("dimm: %02x.0: %02x", i, device);
+#else
 			print_debug("dimm: "); 
 			print_debug_hex8(i); 
 			print_debug(".0: ");
 			print_debug_hex8(device);
-			for(j = 0; j < 256; j++) {
+#endif
+			for(j = 0; j < 128; j++) {
 				int status;
 				unsigned char byte;
 				if ((j & 0xf) == 0) {
+#if CONFIG_USE_INIT
+					printk_debug("\r\n%02x: ", j);
+#else
 					print_debug("\r\n");
 					print_debug_hex8(j);
 					print_debug(": ");
+#endif
 				}
 				status = smbus_read_byte(device, j);
 				if (status < 0) {
-					print_debug("bad device\r\n");
 					break;
 				}
 				byte = status & 0xff;
+#if CONFIG_USE_INIT
+				printk_debug("%02x ", byte);
+#else
 				print_debug_hex8(byte);
 				print_debug_char(' ');
+#endif
 			}
 			print_debug("\r\n");
 		}
-#if 0
 		device = ctrl->channel1[i];
 		if (device) {
 			int j;
+#if CONFIG_USE_INIT
+                        printk_debug("dimm: %02x.1: %02x", i, device);
+#else`
 			print_debug("dimm: "); 
 			print_debug_hex8(i); 
 			print_debug(".1: ");
 			print_debug_hex8(device);
-			for(j = 0; j < 256; j++) {
+#endif
+			for(j = 0; j < 128; j++) {
 				int status;
 				unsigned char byte;
 				if ((j & 0xf) == 0) {
+#if CONFIG_USE_INIT
+                                        printk_debug("\r\n%02x: ", j);
+#else
 					print_debug("\r\n");
 					print_debug_hex8(j);
 					print_debug(": ");
+#endif
 				}
 				status = smbus_read_byte(device, j);
 				if (status < 0) {
-					print_debug("bad device\r\n");
 					break;
 				}
 				byte = status & 0xff;
+#if CONFIG_USE_INIT
+                                printk_debug("%02x ", byte);
+#else
 				print_debug_hex8(byte);
 				print_debug_char(' ');
+#endif
 			}
 			print_debug("\r\n");
 		}
-#endif
 	}
 }
 static void dump_smbus_registers(void)
 {
-        int i;
+	unsigned device;
         print_debug("\r\n");
-        for(i = 1; i < 0x80; i++) {
-                unsigned device;
-                device = i;
+        for(device = 1; device < 0x80; device++) {
                 int j;
+		if( smbus_read_byte(device, 0) < 0 ) continue;
+#if CONFIG_USE_INIT
+		printk_debug("smbus: %02x", device);
+#else
                 print_debug("smbus: ");
                 print_debug_hex8(device);
+#endif
                 for(j = 0; j < 256; j++) {
                 	int status; 
                         unsigned char byte;
+                        status = smbus_read_byte(device, j);
+                        if (status < 0) {
+				break;
+                        }
                         if ((j & 0xf) == 0) {
+#if CONFIG_USE_INIT
+				printk_debug("\r\n%02x: ",j);
+#else
                 	        print_debug("\r\n");
                                 print_debug_hex8(j);
                                 print_debug(": ");
-                        }
-                        status = smbus_read_byte(device, j);
-                        if (status < 0) {
-                                print_debug("bad device\r\n");
-                                break;
+#endif
                         }
                         byte = status & 0xff;
+#if CONFIG_USE_INIT
+                        printk_debug("%02x ", byte);
+#else
                         print_debug_hex8(byte);
                         print_debug_char(' ');
+#endif
                 }
                 print_debug("\r\n");
 	}	
 }
+
+static void dump_io_resources(unsigned port) 
+{
+
+	int i;
+#if CONFIG_USE_INIT
+	printk_debug("%04x:\r\n", port);
+#else
+        print_debug_hex16(port);
+        print_debug(":\r\n");
+#endif
+        for(i=0;i<256;i++) {
+                uint8_t val;
+                if ((i & 0x0f) == 0) {
+#if CONFIG_USE_INIT
+			printk_debug("%02x:", i);
+#else
+                        print_debug_hex8(i);
+                        print_debug_char(':');
+#endif
+                }
+                val = inb(port);
+#if CONFIG_USE_INIT
+		printk_debug(" %02x",val);
+#else
+                print_debug_char(' ');
+                print_debug_hex8(val);
+#endif
+                if ((i & 0x0f) == 0x0f) {
+                        print_debug("\r\n");
+                }
+		port++;
+        }
+}
+
+static void dump_mem(unsigned start, unsigned end)
+{
+        unsigned i;
+	print_debug("dump_mem:");
+        for(i=start;i<end;i++) {
+		if((i & 0xf)==0) {
+#if CONFIG_USE_INIT
+			printk_debug("\r\n%08x:", i);
+#else	
+			print_debug("\r\n");
+			print_debug_hex32(i);
+			print_debug(":");
+#endif
+		}
+#if CONFIG_USE_INIT	
+		printk_debug(" %02x", (unsigned char)*((unsigned char *)i));
+#else
+		print_debug(" ");
+             	print_debug_hex8((unsigned char)*((unsigned char *)i));
+#endif
+        }
+        print_debug("\r\n");
+ }
 #endif
diff --git a/src/northbridge/intel/e7501/northbridge.c b/src/northbridge/intel/e7501/northbridge.c
index 800831de3e..ff5763265a 100644
--- a/src/northbridge/intel/e7501/northbridge.c
+++ b/src/northbridge/intel/e7501/northbridge.c
@@ -15,6 +15,7 @@ static void pci_domain_read_resources(device_t dev)
 
         /* Initialize the system wide io space constraints */
         resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
+	resource->base = 0x400; //yhlu
         resource->limit = 0xffffUL;
         resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
 
@@ -187,4 +188,5 @@ static void enable_dev(struct device *dev)
 
 struct chip_operations northbridge_intel_e7501_ops = {
 	CHIP_NAME("Intel E7501 northbridge")
+	.enable_dev = enable_dev,
 };
diff --git a/src/northbridge/intel/e7501/raminit.c b/src/northbridge/intel/e7501/raminit.c
index 020585a30b..06cabe3953 100644
--- a/src/northbridge/intel/e7501/raminit.c
+++ b/src/northbridge/intel/e7501/raminit.c
@@ -12,7 +12,7 @@
 
 /* converted to C 6/2004 yhlu */
 
-#define DEBUG_RAM_CONFIG 1
+#define DEBUG_RAM_CONFIG 0
 
 #define dumpnorth() dump_pci_device(PCI_DEV(0, 0, 0)) 
 
@@ -161,7 +161,7 @@ static const long register_values[] = {
 	 * 0x2e - 0x2f
 	 * [15:00] Subsystem ID
 	 */
-	 0x2c, 0, (0x15d9 << 0) | (0x3580 << 16),
+//	 0x2c, 0, (0x15d9 << 0) | (0x3580 << 16),
 
 	/* Undocumented
 	 * 0x80 - 0x80
@@ -185,6 +185,12 @@ static const long register_values[] = {
 #elif CAS_LATENCY == CAS_2_0
 //	0x80, 0xfffffe00, 0x0d /* values for register 0x80 */
 	0x80, 0xfffff000, 0x0bb1, /* values for register 0x80 */
+/*
+000 = HI_A Stop Grant generated after 1 Stop Grant
+001 = HI_A Stop Grant generated after 2 Stop Grant
+010 = HI_A Stop Grant generated after 3 Stop Grant
+011 = HI_A Stop Grant generated after 4 Stop Grant*/
+	0x50, 0xffff1fff, 0x00006000, 
 #endif
 
 	/* Enable periodic memory recalibration */
@@ -443,7 +449,7 @@ static const long register_values[] = {
 	0xe0, 0xffffffe2, (1<<4)|(1<<3)|(1<<2)|(0<<0),
 	0xd8, 0xffff9fff, 0x00000000,
 	0xf4, 0x3f8ffffd, 0x40300002,
-	0x1050, 0xffffffcf, 0x00000030,
+	0x1050, 0xffffffcf, 0x00000030, // d2f0
 };
 
 
@@ -498,6 +504,23 @@ static void write_8dwords(uint32_t src_addr, uint32_t dst_addr) {
 #define SLOW_DOWN_IO udelay(40);
 #endif
 
+        /* Estimate that SLOW_DOWN_IO takes about 50&76us*/
+        /* delay for 200us */
+
+#if 1
+static void do_delay(void)
+{
+        int i;
+        for(i = 0; i < 16; i++) { SLOW_DOWN_IO }
+}
+#define DO_DELAY do_delay();
+#else
+#define DO_DELAY \
+        udelay(200);
+#endif
+
+#define EXTRA_DELAY DO_DELAY
+
 static void ram_set_rcomp_regs(const struct mem_controller *ctrl) {
 	uint32_t dword;
 #if DEBUG_RAM_CONFIG
@@ -563,7 +586,7 @@ static void ram_set_rcomp_regs(const struct mem_controller *ctrl) {
 }
 
 static void ram_set_d0f0_regs(const struct mem_controller *ctrl) {
-#if DEBUG_RAM_CONFIG >= 2
+#if DEBUG_RAM_CONFIG
 	dumpnorth();
 #endif
 	int i;
@@ -571,7 +594,7 @@ static void ram_set_d0f0_regs(const struct mem_controller *ctrl) {
         max = sizeof(register_values)/sizeof(register_values[0]);
         for(i = 0; i < max; i += 3) {
                 uint32_t reg;
-#if DEBUG_RAM_CONFIG >= 2
+#if DEBUG_RAM_CONFIG
                 print_debug_hex32(register_values[i]);
                 print_debug(" <-");
                 print_debug_hex32(register_values[i+2]);
@@ -584,7 +607,7 @@ static void ram_set_d0f0_regs(const struct mem_controller *ctrl) {
 
 
         }
-#if DEBUG_RAM_CONFIG >= 2
+#if DEBUG_RAM_CONFIG
 	dumpnorth();
 #endif
 }
@@ -875,7 +898,7 @@ static long spd_set_row_attributes(const struct mem_controller *ctrl, long dimm_
                  /* Test to see if I have ecc sdram */
 		struct dimm_page_size sz;
                 sz = sdram_spd_get_page_size(ctrl->channel0[i]);  /* SDRAM type */
-#if DEBUG_RAM_CONFIG>=2 
+#if DEBUG_RAM_CONFIG
 		print_debug("page size =");
 		print_debug_hex32(sz.side1);
 		print_debug(" ");
@@ -954,6 +977,7 @@ static long spd_set_row_attributes(const struct mem_controller *ctrl, long dimm_
 	return dimm_mask;
 
 }
+
 #define spd_pre_init  "Reading SPD data...\r\n"
 #define spd_pre_set "setting based on SPD data...\r\n"
 #define spd_post_init "done\r\n"
@@ -992,17 +1016,17 @@ static long spd_set_dram_controller_mode (const struct mem_controller *ctrl, lon
         /* Read the inititial state */
         dword = pci_read_config32(ctrl->d0, 0x7c);
 
-/*
-        // Test if ECC cmos option is enabled 
+#if 0
+        /* Test if ECC cmos option is enabled */
         movb    $RTC_BOOT_BYTE, %al
         outb    %al, $0x70
         inb     $0x71, %al
         testb   $(1<<2), %al
         jnz     1f
-        // Clear the ecc enable 
+        /* Clear the ecc enable */
         andl    $~(3 << 20), %esi
 1:
-*/
+#endif
 
 
         /* Walk through all dimms and find the interesection of the support
@@ -1184,7 +1208,7 @@ static long spd_set_cas_latency(const struct mem_controller *ctrl, long dimm_mas
 	/* After all of the arduous calculation setup with the fastest
 	 * cas latency I can use.
 	 */
-	value = __builtin_bsf(dword);  // bsrl = log2 how about bsfl?
+	value = log2f(dword);  // bsrl = log2 how about bsfl?
 	if(value ==0 ) return -1;
 	ecx = value -1;
 
@@ -1348,13 +1372,13 @@ static unsigned int spd_detect_dimms(const struct mem_controller *ctrl)
         unsigned dimm_mask;
         int i;  
         dimm_mask = 0;  
-#if DEBUG_RAM_CONFIG 
+#if DEBUG_RAM_CONFIG
 	print_debug("spd_detect_dimms:\r\n");
 #endif
         for(i = 0; i < DIMM_SOCKETS; i++) {
                 int byte;
                 unsigned device;
-#if DEBUG_RAM_CONFIG 
+#if DEBUG_RAM_CONFIG
 		print_debug_hex32(i);
 		print_debug("\r\n");
 #endif
@@ -1528,7 +1552,7 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl) {
 #if DEBUG_RAM_CONFIG
 	print_debug(spd_post_init);
 #endif
-	//moved from dram_post_init
+	DO_DELAY	
 	spd_set_ram_size(ctrl, dimm_mask);
 	        return;
  hw_spd_err:
@@ -1539,24 +1563,6 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl) {
 }
 
 
-#if 0
-static void ram_postinit(const struct mem_controller *ctrl) {
-#if DEBUG_RAM_CONFIG 
-	dumpnorth();
-#endif
-	/* Include a test to verify that memory is more or less working o.k. 
-  	 * This test is to catch programming errors and hardware that is out of
-	 * spec, not a test to see if the memory dimms are working 100%
-	 */
-//#	CALL_LABEL(verify_ram)
-	spd_set_ram_size(ctrl);
-}
-#define FIRST_NORMAL_REFERENCE() CALL_LABEL(ram_postinit)
-
-#define SPECIAL_FINISHUP()   CALL_LABEL(dram_finish)
-
-#endif
-
 #define ecc_pre_init	"Initializing ECC state...\r\n"
 #define ecc_post_init	"ECC state initialized.\r\n"
 static void dram_finish(const struct mem_controller *ctrl)
@@ -1569,7 +1575,7 @@ static void dram_finish(const struct mem_controller *ctrl)
 	dword &=3;
 	if(dword == 2)  {
 		
-#if DEBUG_RAM_CONFIG 	
+#if DEBUG_RAM_CONFIG	
 		print_debug(ecc_pre_init);
 #endif
 		/* Initialize ECC bits , use ECC zero mode (new to 7501)*/
@@ -1581,7 +1587,7 @@ static void dram_finish(const struct mem_controller *ctrl)
 		} while ( (byte & 0x08 ) == 0);
 
 		pci_write_config8(ctrl->d0, 0x52, byte & 0xfc);
-#if DEBUG_RAM_CONFIG 	
+#if DEBUG_RAM_CONFIG		
 		print_debug(ecc_post_init);	
 #endif
 
@@ -1600,7 +1606,7 @@ static void dram_finish(const struct mem_controller *ctrl)
 	pci_write_config32(ctrl->d0, 0x7c, dword);
 
 
-#if DEBUG_RAM_CONFIG >= 2
+#if DEBUG_RAM_CONFIG 
 	dumpnorth();
 #endif
 
@@ -1621,23 +1627,6 @@ static void dram_finish(const struct mem_controller *ctrl)
 #define ram_enable_11 	"Ram Enable 11\r\n"
 #endif
 
-	/* Estimate that SLOW_DOWN_IO takes about 50&76us*/
-	/* delay for 200us */
-
-#if 1
-static void do_delay(void)
-{
-	int i;
-	for(i = 0; i < 16; i++) { SLOW_DOWN_IO }
-}
-#define DO_DELAY do_delay();
-#else
-#define DO_DELAY \
-	udelay(200);
-#endif		
-
-#define EXTRA_DELAY DO_DELAY
-
 static void sdram_enable(int controllers, const struct mem_controller *ctrl)
 {
 	int i;
@@ -1737,15 +1726,12 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
 #endif
 	RAM_NORMAL(ctrl);
 
-
-	// special from v1
-        //FIRST_NORMAL_REFERENCE();
-	//spd_set_ram_size(ctrl, 0x03);
-
+	EXTRA_DELAY
         /* Finally enable refresh */
         ENABLE_REFRESH(ctrl);
 
 	//SPECIAL_FINISHUP();
+	EXTRA_DELAY
 	dram_finish(ctrl);
 
 }