-static void setup_coherent_ht_domain(void)
+/* coherent hypertransport initialization for AMD64
+ * written by Stefan Reinauer <stepan@openbios.info>
+ * (c) 2003 by SuSE Linux AG
+ *
+ * This code is licensed under GPL.
+ */
+
+/*
+ * This algorithm assumes a grid configuration as follows:
+ *
+ * nodes : 1 2 4 6 8
+ * org. : 1x1 2x1 2x2 2x3 2x4
+ *
+ */
+
+#include <device/pci_def.h>
+#include "arch/romcc_io.h"
+
+/*
+ * Until we have a completely dynamic setup we want
+ * to be able to map different cpu graphs.
+ */
+
+#define UP 0x00
+#define ACROSS 0x20
+#define DOWN 0x40
+
+/*
+ * set some default values. These are used if they are not
+ * differently defined in the motherboard's auto.c file.
+ * See src/mainboard/amd/quartet/auto.c for an example.
+ */
+
+#ifndef CONNECTION_0_1
+#define CONNECTION_0_1 ACROSS
+#endif
+
+#ifndef CONNECTION_0_2
+#define CONNECTION_0_2 UP
+#endif
+
+#ifndef CONNECTION_1_3
+#define CONNECTION_1_3 UP
+#endif
+
+/* when generating a temporary row configuration we
+ * don't want broadcast to be enabled for that node.
+ */
+
+#define generate_temp_row(x...) ((generate_row(x)&(~0x0f0000))|0x010000)
+#define clear_temp_row(x) fill_row(x,7,DEFAULT)
+#define enable_bsp_routing() enable_routing(0)
+
+#define NODE_HT(x) PCI_DEV(0,24+x,0)
+#define NODE_MP(x) PCI_DEV(0,24+x,1)
+#define NODE_MC(x) PCI_DEV(0,24+x,3)
+
+#define DEFAULT 0x00010101 /* default row entry */
+
+typedef uint8_t u8;
+typedef uint32_t u32;
+typedef int8_t bool;
+
+#define TRUE (-1)
+#define FALSE (0)
+
+static void disable_probes(void)
{
- static const unsigned int register_values[] = {
- /* Routing Table Node i
- * F0:0x40 i = 0,
- * F0:0x44 i = 1,
- * F0:0x48 i = 2,
- * F0:0x4c i = 3,
- * F0:0x50 i = 4,
- * F0:0x54 i = 5,
- * F0:0x58 i = 6,
- * F0:0x5c i = 7
- * [ 0: 3] Request Route
- * [0] Route to this node
- * [1] Route to Link 0
- * [2] Route to Link 1
- * [3] Route to Link 2
- * [11: 8] Response Route
- * [0] Route to this node
- * [1] Route to Link 0
- * [2] Route to Link 1
- * [3] Route to Link 2
- * [19:16] Broadcast route
- * [0] Route to this node
- * [1] Route to Link 0
- * [2] Route to Link 1
- * [3] Route to Link 2
+ /* disable read/write/fill probes for uniprocessor setup
+ * they don't make sense if only one cpu is available
*/
- PCI_ADDR(0, 0x18, 0, 0x40), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x44), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x48), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x4c), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x50), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x54), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x58), 0xfff0f0f0, 0x00010101,
- PCI_ADDR(0, 0x18, 0, 0x5c), 0xfff0f0f0, 0x00010101,
/* Hypetransport Transaction Control Register
* F0:0x68
* [ 3: 3] Disable Write Doubleword Probes
* 0 = Probes issued
* 1 = Probes not issued.
- * [ 4: 4] Disable Memroy Controller Target Start
- * 0 = TgtStart packets are generated
- * 1 = TgtStart packets are not generated.
- * [ 5: 5] CPU1 Enable
- * 0 = Second CPU disabled or not present
- * 1 = Second CPU enabled.
- * [ 6: 6] CPU Request PassPW
- * 0 = CPU requests do not pass posted writes
- * 1 = CPU requests pass posted writes.
- * [ 7: 7] CPU read Respons PassPW
- * 0 = CPU Responses do not pass posted writes
- * 1 = CPU responses pass posted writes.
- * [ 8: 8] Disable Probe Memory Cancel
- * 0 = Probes may generate MemCancels
- * 1 = Probes may not generate MemCancels
- * [ 9: 9] Disable Remote Probe Memory Cancel.
- * 0 = Probes hitting dirty blocks generate memory cancel packets
- * 1 = Only probed caches on the same node as the memory controller
- * generate cancel packets.
* [10:10] Disable Fill Probe
* 0 = Probes issued for cache fills
* 1 = Probes not issued for cache fills.
- * [11:11] Response PassPw
- * 0 = Downstream response PassPW based on original request
- * 1 = Downstream response PassPW set to 1
- * [12:12] Change ISOC to Ordered
- * 0 = Bit 1 of coherent HT RdSz/WrSz command used for iosynchronous prioritization
- * 1 = Bit 1 of coherent HT RdSz/WrSz command used for ordering.
- * [14:13] Buffer Release Priority select
- * 00 = 64
- * 01 = 16
- * 10 = 8
- * 11 = 2
- * [15:15] Limit Coherent HT Configuration Space Range
- * 0 = No coherent HT configuration space restrictions
- * 1 = Limit coherent HT configuration space based on node count
- * [16:16] Local Interrupt Conversion Enable.
- * 0 = ExtInt/NMI interrups unaffected.
- * 1 = ExtInt/NMI broadcat interrupts converted to LINT0/1
- * [17:17] APIC Extended Broadcast Enable.
- * 0 = APIC broadcast is 0F
- * 1 = APIC broadcast is FF
- * [18:18] APIC Extended ID Enable
- * 0 = APIC ID is 4 bits.
- * 1 = APIC ID is 8 bits.
- * [19:19] APIC Extended Spurious Vector Enable
- * 0 = Lower 4 bits of spurious vector are read-only 1111
- * 1 = Lower 4 bits of spurious vecotr are writeable.
- * [20:20] Sequence ID Source Node Enable
- * 0 = Normal operation
- * 1 = Keep SeqID on routed packets for debugging.
- * [22:21] Downstream non-posted request limit
- * 00 = No limit
- * 01 = Limited to 1
- * 10 = Limited to 4
- * 11 = Limited to 8
- * [23:23] RESERVED
- * [25:24] Medium-Priority Bypass Count
- * - Maximum # of times a medium priority access can pass a low
- * priority access before Medium-Priority mode is disabled for one access.
- * [27:26] High-Priority Bypass Count
- * - Maximum # of times a high prioirty access can pass a medium or low
- * priority access before High-prioirty mode is disabled for one access.
- * [28:28] Enable High Priority CPU Reads
- * 0 = Cpu reads are medium prioirty
- * 1 = Cpu reads are high prioirty
- * [29:29] Disable Low Priority Writes
- * 0 = Non-isochronous writes are low priority
- * 1 = Non-isochronous writes are medium prioirty
- * [30:30] Disable High Priority Isochronous writes
- * 0 = Isochronous writes are high priority
- * 1 = Isochronous writes are medium priority
- * [31:31] Disable Medium Priority Isochronous writes
- * 0 = Isochronous writes are medium are high
- * 1 = With bit 30 set makes Isochrouns writes low priority.
*/
- PCI_ADDR(0, 0x18, 0, 0x68), 0x00800000, 0x0f00840f,
+
+ u32 val;
+
+ print_debug("Disabling read/write/fill probes for UP... ");
+
+ val=pci_read_config32(NODE_HT(0), 0x68);
+ val |= (1<<10)|(1<<9)|(1<<8)|(1<<4)|(1<<3)|(1<<2)|(1<<1)|(1 << 0);
+ pci_write_config32(NODE_HT(0), 0x68, val);
+
+ print_debug("done.\r\n");
+
+}
+
+static void enable_routing(u8 node)
+{
+ u32 val;
+
/* HT Initialization Control Register
* F0:0x6C
* [ 0: 0] Routing Table Disable
* - Scratch bit cleared by a warm or cold reset not by an INIT
*
*/
- PCI_ADDR(0, 0x18, 0, 0x6C), 0xffffff8c, 0x00000000 | (1 << 6) |(1 << 5)| (1 << 4),
- /* LDTi Capabilities Registers
- * F0:0x80 i = 0,
- * F0:0xA0 i = 1,
- * F0:0xC0 i = 2,
- */
- /* LDTi Link Control Registrs
- * F0:0x84 i = 0,
- * F0:0xA4 i = 1,
- * F0:0xC4 i = 2,
- * [ 1: 1] CRC Flood Enable
- * 0 = Do not generate sync packets on CRC error
- * 1 = Generate sync packets on CRC error
- * [ 2: 2] CRC Start Test (Read-Only)
- * [ 3: 3] CRC Force Frame Error
- * 0 = Do not generate bad CRC
- * 1 = Generate bad CRC
- * [ 4: 4] Link Failure
- * 0 = No link failure detected
- * 1 = Link failure detected
- * [ 5: 5] Initialization Complete
- * 0 = Initialization not complete
- * 1 = Initialization complete
- * [ 6: 6] Receiver off
- * 0 = Recevier on
- * 1 = Receiver off
- * [ 7: 7] Transmitter Off
- * 0 = Transmitter on
- * 1 = Transmitter off
- * [ 9: 8] CRC_Error
- * 00 = No error
- * [0] = 1 Error on byte lane 0
- * [1] = 1 Error on byte lane 1
- * [12:12] Isochrnous Enable (Read-Only)
- * [13:13] HT Stop Tristate Enable
- * 0 = Driven during an LDTSTOP_L
- * 1 = Tristated during and LDTSTOP_L
- * [14:14] Extended CTL Time
- * 0 = CTL is asserted for 16 bit times during link initialization
- * 1 = CTL is asserted for 50us during link initialization
- * [18:16] Max Link Width In (Read-Only?)
- * 000 = 8 bit link
- * 001 = 16bit link
- * [19:19] Doubleword Flow Control in (Read-Only)
- * 0 = This link does not support doubleword flow control
- * 1 = This link supports doubleword flow control
- * [22:20] Max Link Width Out (Read-Only?)
- * 000 = 8 bit link
- * 001 = 16bit link
- * [23:23] Doubleworld Flow Control out (Read-Only)
- * 0 = This link does not support doubleword flow control
- * 1 = This link supports doubleworkd flow control
- * [26:24] Link Width In
- * 000 = Use 8 bits
- * 001 = Use 16 bits
- * 010 = reserved
- * 011 = Use 32 bits
- * 100 = Use 2 bits
- * 101 = Use 4 bits
- * 110 = reserved
- * 111 = Link physically not connected
- * [27:27] Doubleword Flow Control In Enable
- * 0 = Doubleword flow control disabled
- * 1 = Doubleword flow control enabled (Not currently supported)
- * [30:28] Link Width Out
- * 000 = Use 8 bits
- * 001 = Use 16 bits
- * 010 = reserved
- * 011 = Use 32 bits
- * 100 = Use 2 bits
- * 101 = Use 4 bits
- * 110 = reserved
- * 111 = Link physically not connected
- * [31:31] Doubleworld Flow Control Out Enable
- * 0 = Doubleworld flow control disabled
- * 1 = Doubleword flow control enabled (Not currently supported)
- */
- PCI_ADDR(0, 0x18, 0, 0x84), 0x00009c05, 0x11110020,
- /* LDTi Frequency/Revision Registers
- * F0:0x88 i = 0,
- * F0:0xA8 i = 1,
- * F0:0xC8 i = 2,
- * [ 4: 0] Minor Revision
- * Contains the HT Minor revision
- * [ 7: 5] Major Revision
- * Contains the HT Major revision
- * [11: 8] Link Frequency (Takes effect the next time the link is reconnected)
- * 0000 = 200Mhz
- * 0001 = reserved
- * 0010 = 400Mhz
- * 0011 = reserved
- * 0100 = 600Mhz
- * 0101 = 800Mhz
- * 0110 = 1000Mhz
- * 0111 = reserved
- * 1000 = reserved
- * 1001 = reserved
- * 1010 = reserved
- * 1011 = reserved
- * 1100 = reserved
- * 1101 = reserved
- * 1110 = reserved
- * 1111 = 100 Mhz
- * [15:12] Error (Not currently Implemented)
- * [31:16] Indicates the frequency capabilities of the link
- * [16] = 1 encoding 0000 of freq supported
- * [17] = 1 encoding 0001 of freq supported
- * [18] = 1 encoding 0010 of freq supported
- * [19] = 1 encoding 0011 of freq supported
- * [20] = 1 encoding 0100 of freq supported
- * [21] = 1 encoding 0101 of freq supported
- * [22] = 1 encoding 0110 of freq supported
- * [23] = 1 encoding 0111 of freq supported
- * [24] = 1 encoding 1000 of freq supported
- * [25] = 1 encoding 1001 of freq supported
- * [26] = 1 encoding 1010 of freq supported
- * [27] = 1 encoding 1011 of freq supported
- * [28] = 1 encoding 1100 of freq supported
- * [29] = 1 encoding 1101 of freq supported
- * [30] = 1 encoding 1110 of freq supported
- * [31] = 1 encoding 1111 of freq supported
- */
- PCI_ADDR(0, 0x18, 0, 0x88), 0xfffff0ff, 0x00000200,
- /* LDTi Feature Capability
- * F0:0x8C i = 0,
- * F0:0xAC i = 1,
- * F0:0xCC i = 2,
- */
- /* LDTi Buffer Count Registers
- * F0:0x90 i = 0,
- * F0:0xB0 i = 1,
- * F0:0xD0 i = 2,
- */
- /* LDTi Bus Number Registers
- * F0:0x94 i = 0,
- * F0:0xB4 i = 1,
- * F0:0xD4 i = 2,
- * For NonCoherent HT specifies the bus number downstream (behind the host bridge)
- * [ 0: 7] Primary Bus Number
- * [15: 8] Secondary Bus Number
- * [23:15] Subordiante Bus Number
- * [31:24] reserved
- */
- PCI_ADDR(0, 0x18, 0, 0x94), 0xff000000, 0x00ff0000,
- /* LDTi Type Registers
- * F0:0x98 i = 0,
- * F0:0xB8 i = 1,
- * F0:0xD8 i = 2,
+
+ /* Enable routing table */
+ print_debug("Enabling routing table for node ");
+ print_debug_hex32(node);
+
+ val=pci_read_config32(NODE_HT(node), 0x6c);
+ val &= ~((1<<6)|(1<<5)|(1<<4)|(1<<1)|(1<<0));
+ pci_write_config32(NODE_HT(node), 0x6c, val);
+
+ print_debug(" done.\r\n");
+}
+
+#if CONFIG_MAX_CPUS > 1
+
+static void rename_temp_node(u8 node)
+{
+ uint32_t val;
+
+ print_debug("Renaming current temp node to ");
+ print_debug_hex32(node);
+
+ val=pci_read_config32(NODE_HT(7), 0x60);
+ val &= (~7); /* clear low bits. */
+ val |= node; /* new node */
+ pci_write_config32(NODE_HT(7), 0x60, val);
+
+ print_debug(" done.\r\n");
+
+
+}
+
+static bool check_connection(u8 src, u8 dest, u8 link)
+{
+ /* this function does 2 things:
+ * 1) detect whether the coherent HT link is connected.
+ * 2) verify that the coherent hypertransport link
+ * is established and actually working by reading the
+ * remote node's vendor/device id
*/
- /* Careful set limit registers before base registers which contain the enables */
- /* DRAM Limit i Registers
- * F1:0x44 i = 0
- * F1:0x4C i = 1
- * F1:0x54 i = 2
- * F1:0x5C i = 3
- * F1:0x64 i = 4
- * F1:0x6C i = 5
- * F1:0x74 i = 6
- * F1:0x7C i = 7
- * [ 2: 0] Destination Node ID
- * 000 = Node 0
- * 001 = Node 1
- * 010 = Node 2
- * 011 = Node 3
- * 100 = Node 4
- * 101 = Node 5
- * 110 = Node 6
- * 111 = Node 7
- * [ 7: 3] Reserved
- * [10: 8] Interleave select
- * specifies the values of A[14:12] to use with interleave enable.
- * [15:11] Reserved
- * [31:16] DRAM Limit Address i Bits 39-24
- * This field defines the upper address bits of a 40 bit address
- * that define the end of the DRAM region.
+
+ u32 val;
+
+ /* 1) */
+ val=pci_read_config32(NODE_HT(src), 0x98+link);
+ if ( (val&0x17) != 0x03)
+ return 0;
+
+ /* 2) */
+ val=pci_read_config32(NODE_HT(dest),0);
+ if(val != 0x11001022)
+ return 0;
+
+ return 1;
+}
+
+static void optimize_connection(u8 node1, u8 link1, u8 node2, u8 link2)
+{
+ static const uint8_t link_width_to_pow2[]= { 3, 4, 0, 5, 1, 2, 0, 0 };
+ static const uint8_t pow2_to_link_width[] = { 0x7, 4, 5, 0, 1, 3 };
+ uint16_t freq_cap1, freq_cap2, freq_cap, freq_mask;
+ uint8_t width_cap1, width_cap2, width_cap, width, ln_width1, ln_width2;
+ uint8_t freq;
+ /* Set link width and frequency */
+
+ /* Get the frequency capabilities */
+ freq_cap1 = pci_read_config16(NODE_HT(node1), 0x80 + link1 + PCI_HT_CAP_HOST_FREQ_CAP);
+ freq_cap2 = pci_read_config16(NODE_HT(node2), 0x80 + link2 + PCI_HT_CAP_HOST_FREQ_CAP);
+
+ /* Calculate the highest possible frequency */
+#if 1
+ /* FIXME!!!!!!!
+ * This method of computing the fastes frequency is broken.
+ * Because the frequencies (i.e. 100Mhz) are not ordered.
*/
-#if MEMORY_1024MB
- PCI_ADDR(0, 0x18, 1, 0x44), 0x0000f8f8, 0x003f0000,
+ freq = log2(freq_cap1 & freq_cap2 & 0xff);
+#else
+ /* Only allow supported frequencies 800Mhz and below */
+ freq = log2(freq_cap1 & freq_cap2 & 0x3f);
#endif
-#if MEMORY_512MB
- PCI_ADDR(0, 0x18, 1, 0x44), 0x0000f8f8, 0x001f0000,
+
+ /* Set the Calulcated link frequency */
+ pci_write_config8(NODE_HT(node1), 0x80 + link1 + PCI_HT_CAP_HOST_FREQ, freq);
+ pci_write_config8(NODE_HT(node2), 0x80 + link2 + PCI_HT_CAP_HOST_FREQ, freq);
+
+ /* Get the width capabilities */
+ width_cap1 = pci_read_config8(NODE_HT(node1), 0x80 + link1 + PCI_HT_CAP_HOST_WIDTH);
+ width_cap2 = pci_read_config8(NODE_HT(node2), 0x80 + link2 + PCI_HT_CAP_HOST_WIDTH);
+
+ /* Calculate node1's input width */
+ ln_width1 = link_width_to_pow2[width_cap1 & 7];
+ ln_width2 = link_width_to_pow2[(width_cap2 >> 4) & 7];
+ if (ln_width1 > ln_width2) {
+ ln_width1 = ln_width2;
+ }
+ width = pow2_to_link_width[ln_width1];
+ /* Calculate node1's output width */
+ ln_width1 = link_width_to_pow2[(width_cap1 >> 4) & 7];
+ ln_width2 = link_width_to_pow2[width_cap2 & 7];
+ if (ln_width1 > ln_width2) {
+ ln_width1 = ln_width2;
+ }
+ width |= pow2_to_link_width[ln_width1] << 4;
+
+ /* Set node1's widths */
+ pci_write_config8(NODE_HT(node1), 0x80 + link1 + PCI_HT_CAP_HOST_WIDTH + 1, width);
+
+ /* Set node2's widths */
+ width = ((width & 0x70) >> 4) | ((width & 0x7) << 4);
+ pci_write_config8(NODE_HT(node2), 0x80 + link2 + PCI_HT_CAP_HOST_WIDTH + 1, width);
+}
+
+static void fill_row(u8 node, u8 row, u32 value)
+{
+#if 0
+ print_debug("fill_row: pci_write_config32(");
+ print_debug_hex32(NODE_HT(node));
+ print_debug_char(',');
+ print_debug_hex32(0x40 + (row << 2));
+ print_debug_char(',');
+ print_debug_hex32(value);
+ print_debug(")\r\n");
+#endif
+ pci_write_config32(NODE_HT(node), 0x40+(row<<2), value);
+}
+
+static void setup_row(u8 source, u8 dest, u8 cpus)
+{
+#if 0
+ printk_spew("setting up link from node %d to %d (%d cpus)\r\n",
+ source, dest, cpus);
#endif
- PCI_ADDR(0, 0x18, 1, 0x4C), 0x0000f8f8, 0x00000001,
- PCI_ADDR(0, 0x18, 1, 0x54), 0x0000f8f8, 0x00000002,
- PCI_ADDR(0, 0x18, 1, 0x5C), 0x0000f8f8, 0x00000003,
- PCI_ADDR(0, 0x18, 1, 0x64), 0x0000f8f8, 0x00000004,
- PCI_ADDR(0, 0x18, 1, 0x6C), 0x0000f8f8, 0x00000005,
- PCI_ADDR(0, 0x18, 1, 0x74), 0x0000f8f8, 0x00000006,
- PCI_ADDR(0, 0x18, 1, 0x7C), 0x0000f8f8, 0x00000007,
- /* DRAM Base i Registers
- * F1:0x40 i = 0
- * F1:0x48 i = 1
- * F1:0x50 i = 2
- * F1:0x58 i = 3
- * F1:0x60 i = 4
- * F1:0x68 i = 5
- * F1:0x70 i = 6
- * F1:0x78 i = 7
- * [ 0: 0] Read Enable
- * 0 = Reads Disabled
- * 1 = Reads Enabled
- * [ 1: 1] Write Enable
- * 0 = Writes Disabled
- * 1 = Writes Enabled
- * [ 7: 2] Reserved
- * [10: 8] Interleave Enable
- * 000 = No interleave
- * 001 = Interleave on A[12] (2 nodes)
- * 010 = reserved
- * 011 = Interleave on A[12] and A[14] (4 nodes)
- * 100 = reserved
- * 101 = reserved
- * 110 = reserved
- * 111 = Interleve on A[12] and A[13] and A[14] (8 nodes)
- * [15:11] Reserved
- * [13:16] DRAM Base Address i Bits 39-24
- * This field defines the upper address bits of a 40-bit address
- * that define the start of the DRAM region.
- */
- PCI_ADDR(0, 0x18, 1, 0x40), 0x0000f8fc, 0x00000003,
-#if MEMORY_1024MB
- PCI_ADDR(0, 0x18, 1, 0x48), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x50), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x58), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x60), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x68), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x70), 0x0000f8fc, 0x00400000,
- PCI_ADDR(0, 0x18, 1, 0x78), 0x0000f8fc, 0x00400000,
+
+ fill_row(source,dest,generate_row(source,dest,cpus));
+}
+
+static void setup_temp_row(u8 source, u8 dest, u8 cpus)
+{
+#if 0
+ printk_spew("setting up temp. link from node %d to %d (%d cpus)\r\n",
+ source, dest, cpus);
#endif
-#if MEMORY_512MB
- PCI_ADDR(0, 0x18, 1, 0x48), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x50), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x58), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x60), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x68), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x70), 0x0000f8fc, 0x00200000,
- PCI_ADDR(0, 0x18, 1, 0x78), 0x0000f8fc, 0x00200000,
+
+ fill_row(source,7,generate_temp_row(source,dest,cpus));
+}
+
+static void setup_node(u8 node, u8 cpus)
+{
+ u8 row;
+ for(row=0; row<cpus; row++)
+ setup_row(node, row, cpus);
+}
+
+static void setup_remote_row(u8 source, u8 dest, u8 cpus)
+{
+ fill_row(7, dest, generate_row(source, dest, cpus));
+}
+
+static void setup_remote_node(u8 node, u8 cpus)
+{
+ static const uint8_t pci_reg[] = {
+ 0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c,
+ 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
+ 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc,
+ 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8,
+ 0xc4, 0xcc, 0xd4, 0xdc,
+ 0xc0, 0xc8, 0xd0, 0xd8,
+ 0xe0, 0xe4, 0xe8, 0xec,
+ };
+ uint8_t row;
+ int i;
+#if 1
+ print_debug("setup_remote_node\r\n");
#endif
+ for(row=0; row<cpus; row++)
+ setup_remote_row(node, row, cpus);
- /* Memory-Mapped I/O Limit i Registers
- * F1:0x84 i = 0
- * F1:0x8C i = 1
- * F1:0x94 i = 2
- * F1:0x9C i = 3
- * F1:0xA4 i = 4
- * F1:0xAC i = 5
- * F1:0xB4 i = 6
- * F1:0xBC i = 7
- * [ 2: 0] Destination Node ID
- * 000 = Node 0
- * 001 = Node 1
- * 010 = Node 2
- * 011 = Node 3
- * 100 = Node 4
- * 101 = Node 5
- * 110 = Node 6
- * 111 = Node 7
- * [ 3: 3] Reserved
- * [ 5: 4] Destination Link ID
- * 00 = Link 0
- * 01 = Link 1
- * 10 = Link 2
- * 11 = Reserved
- * [ 6: 6] Reserved
- * [ 7: 7] Non-Posted
- * 0 = CPU writes may be posted
- * 1 = CPU writes must be non-posted
- * [31: 8] Memory-Mapped I/O Limit Address i (39-16)
- * This field defines the upp adddress bits of a 40-bit address that
- * defines the end of a memory-mapped I/O region n
- */
- PCI_ADDR(0, 0x18, 1, 0x84), 0x00000048, 0x00e1ff00,
- PCI_ADDR(0, 0x18, 1, 0x8C), 0x00000048, 0x00dfff00,
- PCI_ADDR(0, 0x18, 1, 0x94), 0x00000048, 0x00e3ff00,
- PCI_ADDR(0, 0x18, 1, 0x9C), 0x00000048, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xA4), 0x00000048, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xAC), 0x00000048, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xB4), 0x00000048, 0x00000b00,
- PCI_ADDR(0, 0x18, 1, 0xBC), 0x00000048, 0x00fe0b00,
-
- /* Memory-Mapped I/O Base i Registers
- * F1:0x80 i = 0
- * F1:0x88 i = 1
- * F1:0x90 i = 2
- * F1:0x98 i = 3
- * F1:0xA0 i = 4
- * F1:0xA8 i = 5
- * F1:0xB0 i = 6
- * F1:0xB8 i = 7
- * [ 0: 0] Read Enable
- * 0 = Reads disabled
- * 1 = Reads Enabled
- * [ 1: 1] Write Enable
- * 0 = Writes disabled
- * 1 = Writes Enabled
- * [ 2: 2] Cpu Disable
- * 0 = Cpu can use this I/O range
- * 1 = Cpu requests do not use this I/O range
- * [ 3: 3] Lock
- * 0 = base/limit registers i are read/write
- * 1 = base/limit registers i are read-only
- * [ 7: 4] Reserved
- * [31: 8] Memory-Mapped I/O Base Address i (39-16)
- * This field defines the upper address bits of a 40bit address
- * that defines the start of memory-mapped I/O region i
- */
- PCI_ADDR(0, 0x18, 1, 0x80), 0x000000f0, 0x00e00003,
- PCI_ADDR(0, 0x18, 1, 0x88), 0x000000f0, 0x00d80003,
- PCI_ADDR(0, 0x18, 1, 0x90), 0x000000f0, 0x00e20003,
- PCI_ADDR(0, 0x18, 1, 0x98), 0x000000f0, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xA0), 0x000000f0, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xA8), 0x000000f0, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xB0), 0x000000f0, 0x00000a03,
-#if MEMORY_1024MB
- PCI_ADDR(0, 0x18, 1, 0xB8), 0x000000f0, 0x00400003,
+ /* copy the default resource map from node 0 */
+ for(i = 0; i < sizeof(pci_reg)/sizeof(pci_reg[0]); i++) {
+ uint32_t value;
+ uint8_t reg;
+ reg = pci_reg[i];
+#if 0
+ print_debug("copying reg: ");
+ print_debug_hex8(reg);
+ print_debug("\r\n");
#endif
-#if MEMORY_512MB
- PCI_ADDR(0, 0x18, 1, 0xB8), 0x000000f0, 0x00200003,
+ value = pci_read_config32(NODE_MP(0), reg);
+ pci_write_config32(NODE_MP(7), reg, value);
+
+ }
+#if 1
+ print_debug("setup_remote_done\r\n");
#endif
+}
- /* PCI I/O Limit i Registers
- * F1:0xC4 i = 0
- * F1:0xCC i = 1
- * F1:0xD4 i = 2
- * F1:0xDC i = 3
- * [ 2: 0] Destination Node ID
- * 000 = Node 0
- * 001 = Node 1
- * 010 = Node 2
- * 011 = Node 3
- * 100 = Node 4
- * 101 = Node 5
- * 110 = Node 6
- * 111 = Node 7
- * [ 3: 3] Reserved
- * [ 5: 4] Destination Link ID
- * 00 = Link 0
- * 01 = Link 1
- * 10 = Link 2
- * 11 = reserved
- * [11: 6] Reserved
- * [24:12] PCI I/O Limit Address i
- * This field defines the end of PCI I/O region n
- * [31:25] Reserved
- */
- PCI_ADDR(0, 0x18, 1, 0xC4), 0xFE000FC8, 0x0000d000,
- PCI_ADDR(0, 0x18, 1, 0xCC), 0xFE000FC8, 0x000ff000,
- PCI_ADDR(0, 0x18, 1, 0xD4), 0xFE000FC8, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xDC), 0xFE000FC8, 0x00000000,
-
- /* PCI I/O Base i Registers
- * F1:0xC0 i = 0
- * F1:0xC8 i = 1
- * F1:0xD0 i = 2
- * F1:0xD8 i = 3
- * [ 0: 0] Read Enable
- * 0 = Reads Disabled
- * 1 = Reads Enabled
- * [ 1: 1] Write Enable
- * 0 = Writes Disabled
- * 1 = Writes Enabled
- * [ 3: 2] Reserved
- * [ 4: 4] VGA Enable
- * 0 = VGA matches Disabled
- * 1 = matches all address < 64K and where A[9:0] is in the
- * range 3B0-3BB or 3C0-3DF independen of the base & limit registers
- * [ 5: 5] ISA Enable
- * 0 = ISA matches Disabled
- * 1 = Blocks address < 64K and in the last 768 bytes of eack 1K block
- * from matching agains this base/limit pair
- * [11: 6] Reserved
- * [24:12] PCI I/O Base i
- * This field defines the start of PCI I/O region n
- * [31:25] Reserved
+#endif
+
+#if CONFIG_MAX_CPUS > 2
+static void setup_temp_node(u8 node, u8 cpus)
+{
+ u8 row;
+ for(row=0; row<cpus; row++)
+ fill_row(7,row,generate_row(node,row,cpus));
+}
+#endif
+
+static u8 setup_uniprocessor(void)
+{
+ print_debug("Enabling UP settings\r\n");
+ disable_probes();
+ return 1;
+}
+
+#if CONFIG_MAX_CPUS > 1
+static u8 setup_smp(void)
+{
+ u8 cpus=2;
+
+ print_debug("Enabling SMP settings\r\n");
+
+ setup_row(0,0,cpus);
+ /* Setup and check a temporary connection to node 1 */
+ setup_temp_row(0,1,cpus);
+
+ if (!check_connection(0, 7, CONNECTION_0_1)) {
+ print_debug("No connection to Node 1.\r\n");
+ clear_temp_row(0); /* delete temp connection */
+ setup_uniprocessor(); /* and get up working */
+ return 1;
+ }
+
+ /* We found 2 nodes so far */
+ optimize_connection(0, ACROSS, 7, ACROSS);
+ setup_node(0, cpus); /* Node 1 is there. Setup Node 0 correctly */
+ setup_remote_node(1, cpus); /* Setup the routes on the remote node */
+ rename_temp_node(1); /* Rename Node 7 to Node 1 */
+ enable_routing(1); /* Enable routing on Node 1 */
+
+ clear_temp_row(0); /* delete temporary connection */
+
+#if CONFIG_MAX_CPUS > 2
+ cpus=4;
+
+ /* Setup and check temporary connection from Node 0 to Node 2 */
+ setup_temp_row(0,2,cpus);
+
+ if (!check_connection(0, 7, CONNECTION_0_2)) {
+ print_debug("No connection to Node 2.\r\n");
+ clear_temp_row(0); /* delete temp connection */
+ return 2;
+ }
+
+ /* We found 3 nodes so far. Now setup a temporary
+ * connection from node 0 to node 3 via node 1
*/
- PCI_ADDR(0, 0x18, 1, 0xC0), 0xFE000FCC, 0x0000d003,
- PCI_ADDR(0, 0x18, 1, 0xC8), 0xFE000FCC, 0x00001013,
- PCI_ADDR(0, 0x18, 1, 0xD0), 0xFE000FCC, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xD8), 0xFE000FCC, 0x00000000,
-
- /* Config Base and Limit i Registers
- * F1:0xE0 i = 0
- * F1:0xE4 i = 1
- * F1:0xE8 i = 2
- * F1:0xEC i = 3
- * [ 0: 0] Read Enable
- * 0 = Reads Disabled
- * 1 = Reads Enabled
- * [ 1: 1] Write Enable
- * 0 = Writes Disabled
- * 1 = Writes Enabled
- * [ 2: 2] Device Number Compare Enable
- * 0 = The ranges are based on bus number
- * 1 = The ranges are ranges of devices on bus 0
- * [ 3: 3] Reserved
- * [ 6: 4] Destination Node
- * 000 = Node 0
- * 001 = Node 1
- * 010 = Node 2
- * 011 = Node 3
- * 100 = Node 4
- * 101 = Node 5
- * 110 = Node 6
- * 111 = Node 7
- * [ 7: 7] Reserved
- * [ 9: 8] Destination Link
- * 00 = Link 0
- * 01 = Link 1
- * 10 = Link 2
- * 11 - Reserved
- * [15:10] Reserved
- * [23:16] Bus Number Base i
- * This field defines the lowest bus number in configuration region i
- * [31:24] Bus Number Limit i
- * This field defines the highest bus number in configuration regin i
+
+ setup_temp_row(0,1,cpus); /* temp. link between nodes 0 and 1 */
+ setup_temp_row(1,3,cpus); /* temp. link between nodes 1 and 3 */
+
+ if (!check_connection(1, 7, CONNECTION_1_3)) {
+ print_debug("No connection to Node 3.\r\n");
+ clear_temp_row(0); /* delete temp connection */
+ clear_temp_row(1); /* delete temp connection */
+ return 2;
+ }
+
+ /* We found 4 nodes so far. Now setup all nodes for 4p */
+
+ setup_node(0, cpus); /* The first 2 nodes are configured */
+ setup_node(1, cpus); /* already. Just configure them for 4p */
+
+ setup_temp_row(0,2,cpus);
+ setup_temp_node(2,cpus);
+ rename_temp_node(2);
+ enable_routing(2);
+
+ setup_temp_row(0,1,cpus);
+ setup_temp_row(1,3,cpus);
+ setup_temp_node(3,cpus);
+ rename_temp_node(3);
+ enable_routing(3); /* enable routing on node 3 (temp.) */
+
+ clear_temp_row(0);
+ clear_temp_row(1);
+ clear_temp_row(2);
+ clear_temp_row(3);
+
+#endif
+ print_debug_hex32(cpus);
+ print_debug(" nodes initialized.\r\n");
+ return cpus;
+}
+#endif
+
+#if CONFIG_MAX_CPUS > 1
+static unsigned detect_mp_capabilities(unsigned cpus)
+{
+ unsigned node, row, mask;
+ bool mp_cap=TRUE;
+
+#if 1
+ print_debug("detect_mp_capabilities: ");
+ print_debug_hex32(cpus);
+ print_debug("\r\n");
+#endif
+ if (cpus>2)
+ mask=0x06; /* BigMPCap */
+ else
+ mask=0x02; /* MPCap */
+
+ for (node=0; node<cpus; node++) {
+ if ((pci_read_config32(NODE_MC(node), 0xe8) & mask)!=mask)
+ mp_cap=FALSE;
+ }
+
+ if (mp_cap)
+ return cpus;
+
+ /* one of our cpus is not mp capable */
+
+ print_debug("One of the CPUs is not MP capable. Going back to UP\r\n");
+
+ for (node=cpus; node>0; node--)
+ for (row=cpus; row>0; row--)
+ fill_row(NODE_HT(node-1), row-1, DEFAULT);
+
+ return setup_uniprocessor();
+}
+
+#endif
+
+static void coherent_ht_finalize(unsigned cpus)
+{
+ int node;
+ bool rev_a0;
+
+ /* set up cpu count and node count and enable Limit
+ * Config Space Range for all available CPUs.
+ * Also clear non coherent hypertransport bus range
+ * registers on Hammer A0 revision.
*/
- PCI_ADDR(0, 0x18, 1, 0xE0), 0x0000FC88, 0xff000003,
- PCI_ADDR(0, 0x18, 1, 0xE4), 0x0000FC88, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xE8), 0x0000FC88, 0x00000000,
- PCI_ADDR(0, 0x18, 1, 0xEC), 0x0000FC88, 0x00000000,
- };
- int i;
- int max;
- print_debug("setting up coherent ht domain....\r\n");
- max = sizeof(register_values)/sizeof(register_values[0]);
- for(i = 0; i < max; i += 3) {
- unsigned long reg;
-#if 0
- print_debug_hex32(register_values[i]);
- print_debug(" <-");
- print_debug_hex32(register_values[i+2]);
- print_debug("\r\n");
+#if 1
+ print_debug("coherent_ht_finalize\r\n");
+#endif
+ rev_a0= is_cpu_rev_a0();
+
+ for (node=0; node<cpus; node++) {
+ u32 val;
+ val=pci_read_config32(NODE_HT(node), 0x60);
+ val &= (~0x000F0070);
+ val |= ((cpus-1)<<16)|((cpus-1)<<4);
+ pci_write_config32(NODE_HT(node),0x60,val);
+
+ val=pci_read_config32(NODE_HT(node), 0x68);
+#if 1
+ val |= 0x00008000;
+#else
+ val |= 0x0f00c800; // 0x00008000->0f00c800 BY LYH
#endif
- reg = pci_read_config32(register_values[i]);
- reg &= register_values[i+1];
- reg |= register_values[i+2] & ~register_values[i+1];
- pci_write_config32(register_values[i], reg);
+ pci_write_config32(NODE_HT(node),0x68,val);
+
+ if (rev_a0) {
+ pci_write_config32(NODE_HT(node),0x94,0);
+ pci_write_config32(NODE_HT(node),0xb4,0);
+ pci_write_config32(NODE_HT(node),0xd4,0);
+ }
}
- print_debug("done.\r\n");
+#if 1
+ print_debug("done\r\n");
+#endif
}
+static int setup_coherent_ht_domain(void)
+{
+ unsigned cpus;
+ int reset_needed = 0;
+
+ enable_bsp_routing();
+
+#if CONFIG_MAX_CPUS == 1
+ cpus=setup_uniprocessor();
+#else
+ cpus=setup_smp();
+ cpus=detect_mp_capabilities(cpus);
+#endif
+ coherent_ht_finalize(cpus);
+
+ /* FIXME this should probably go away again. */
+ coherent_ht_mainboard(cpus);
+ return reset_needed;
+}
projects / coreboot.git / blobdiff