add ram resources

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2256 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

diff --git a/src/mainboard/olpc/rev_a/auto.c b/src/mainboard/olpc/rev_a/auto.c
index ac9c2e52220f9c27c564ec61ca2a90253fe0cc16..4775b8c9fe5982be657c75cb58956b2ca6b8f6c3 100644 (file)
--- a/src/mainboard/olpc/rev_a/auto.c
+++ b/src/mainboard/olpc/rev_a/auto.c
@@ -37,6 +37,24 @@ static inline unsigned int fls(unsigned int x)
         return r;
 }
 
+
+
+
+/* sdram parameters for OLPC:
+       row address = 13
+       col address = 9
+       banks = 4
+       dimm0size=128MB
+       d0_MB=1 (module banks)
+       d0_cb=4 (component banks)
+       do_psz=4KB      (page size)
+       Trc=10 (clocks)
+       Tras=7
+       Trcd=3
+       Trp=3
+       Trrd=2
+       Tref=17.8ms
+  */
 static void sdram_set_spd_registers(const struct mem_controller *ctrl) 
 {
        /* Total size of DIMM = 2^row address (byte 3) * 2^col address (byte 4) *
@@ -50,21 +68,17 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
        msr = rdmsr(MC_CF07_DATA);
 
        /* get module banks (sides) per dimm, SPD byte 5 */
-       module_banks = spd_read_byte(0xA0, 5);
-       if (module_banks < 1 || module_banks > 2)
-               print_err("Module banks per dimm\r\n");
+       module_banks = 1;
        module_banks >>= 1;
        msr.hi &= ~(1 << CF07_UPPER_D0_MB_SHIFT);
        msr.hi |= (module_banks << CF07_UPPER_D0_MB_SHIFT);
 
        /* get component banks per module bank, SPD byte 17 */
-       val = spd_read_byte(0xA0, 17);
-       if (val < 2 || val > 4)
-               print_err("Component banks per module bank\r\n");
+       val = 4;
        val >>= 2;
        msr.hi &= ~(0x1 << CF07_UPPER_D0_CB_SHIFT);
        msr.hi |=  (val << CF07_UPPER_D0_CB_SHIFT);
-
+HERE
        /* get the module bank density, SPD byte 31  */
        val = spd_read_byte(0xA0, 31);
        val = fls(val);
@@ -137,7 +151,7 @@ static void msr_init(void)
 #endif
 }
 
-
+       
 static void main(unsigned long bist)
 {
        static const struct mem_controller memctrl [] = {

diff --git a/src/northbridge/amd/gx2/northbridge.c b/src/northbridge/amd/gx2/northbridge.c
index 7c3cb526238a2717d7109f57fea1f24869614192..981d5375e1a13270cf2a6c74eb9d9601c316872b 100644 (file)
--- a/src/northbridge/amd/gx2/northbridge.c
+++ b/src/northbridge/amd/gx2/northbridge.c
@@ -236,10 +236,11 @@ setup_gx2(void)
 static void optimize_xbus(device_t dev)
 {
        /* Optimise X-Bus performance */
-       pci_write_config8(dev, 0x40, 0x1e);
+/*     pci_write_config8(dev, 0x40, 0x1e);
        pci_write_config8(dev, 0x41, 0x52);
        pci_write_config8(dev, 0x43, 0xc1);
        pci_write_config8(dev, 0x44, 0x00);
+*/
 }
 
 static void enable_shadow(device_t dev)
@@ -433,6 +434,7 @@ static void enable_dev(struct device *dev)
                do_vsmbios();
                dev->ops = &pci_domain_ops;
                pci_set_method(dev);
+               ram_resource(dev, 0, 0, sizeram()*1024);
         } else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
 
                printk_debug("DEVICE_PATH_APIC_CLUSTER\n");