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authorStefan Reinauer <stepan@coresystems.de>2009-09-23 18:51:03 +0000
committerStefan Reinauer <stepan@openbios.org>2009-09-23 18:51:03 +0000
commitc13093b1484565382bd5e00722149442e46635ee (patch)
treea819bd3d19560221155eeb5a8cb58149737131be /src/lib
parenta946214ea09d4ca89a575525d0ae0469526e7dcc (diff)
downloadcoreboot-c13093b1484565382bd5e00722149442e46635ee.tar.xz
simplify source tree hierarchy: move files from sdram/ and ram/ to lib/
It's only three files. Also fix up all the paths (Gotta love included C files) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4661 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/lib')
-rw-r--r--src/lib/generic_dump_spd.c93
-rw-r--r--src/lib/generic_sdram.c67
-rw-r--r--src/lib/ramtest.c161
3 files changed, 321 insertions, 0 deletions
diff --git a/src/lib/generic_dump_spd.c b/src/lib/generic_dump_spd.c
new file mode 100644
index 0000000000..2a71353b60
--- /dev/null
+++ b/src/lib/generic_dump_spd.c
@@ -0,0 +1,93 @@
+/*
+ * This code is derived from the Opteron boards' debug.c.
+ * It should go away either there or here, depending what fits better.
+ */
+
+static void dump_spd_registers(const struct mem_controller *ctrl)
+{
+ int i;
+ print_debug("\r\n");
+ for(i = 0; i < 4; i++) {
+ unsigned device;
+ device = ctrl->channel0[i];
+ if (device) {
+ int j;
+ print_debug("dimm: ");
+ print_debug_hex8(i);
+ print_debug(".0: ");
+ print_debug_hex8(device);
+ for(j = 0; j < 256; j++) {
+ int status;
+ unsigned char byte;
+ if ((j & 0xf) == 0) {
+ print_debug("\r\n");
+ print_debug_hex8(j);
+ print_debug(": ");
+ }
+ status = spd_read_byte(device, j);
+ if (status < 0) {
+ print_debug("bad device\r\n");
+ break;
+ }
+ byte = status & 0xff;
+ print_debug_hex8(byte);
+ print_debug_char(' ');
+ }
+ print_debug("\r\n");
+ }
+ device = ctrl->channel1[i];
+ if (device) {
+ int j;
+ print_debug("dimm: ");
+ print_debug_hex8(i);
+ print_debug(".1: ");
+ print_debug_hex8(device);
+ for(j = 0; j < 256; j++) {
+ int status;
+ unsigned char byte;
+ if ((j & 0xf) == 0) {
+ print_debug("\r\n");
+ print_debug_hex8(j);
+ print_debug(": ");
+ }
+ status = spd_read_byte(device, j);
+ if (status < 0) {
+ print_debug("bad device\r\n");
+ break;
+ }
+ byte = status & 0xff;
+ print_debug_hex8(byte);
+ print_debug_char(' ');
+ }
+ print_debug("\r\n");
+ }
+ }
+}
+
+#if 0
+void dump_spd_registers(void)
+{
+ unsigned device;
+ device = SMBUS_MEM_DEVICE_START;
+ printk_debug("\n");
+ while(device <= SMBUS_MEM_DEVICE_END) {
+ int status = 0;
+ int i;
+ printk_debug("dimm %02x", device);
+ for(i = 0; (i < 256) && (status == 0); i++) {
+ unsigned char byte;
+ if ((i % 20) == 0) {
+ printk_debug("\n%3d: ", i);
+ }
+ status = smbus_read_byte(device, i, &byte);
+ if (status != 0) {
+ printk_debug("bad device\n");
+ continue;
+ }
+ printk_debug("%02x ", byte);
+ }
+ device += SMBUS_MEM_DEVICE_INC;
+ printk_debug("\n");
+ }
+}
+#endif
diff --git a/src/lib/generic_sdram.c b/src/lib/generic_sdram.c
new file mode 100644
index 0000000000..cdb06cd73f
--- /dev/null
+++ b/src/lib/generic_sdram.c
@@ -0,0 +1,67 @@
+
+#ifndef RAMINIT_SYSINFO
+ #define RAMINIT_SYSINFO 0
+#endif
+
+static inline void print_debug_sdram_8(const char *strval, uint32_t val)
+{
+#if CONFIG_USE_INIT
+ printk_debug("%s%02x\r\n", strval, val);
+#else
+ print_debug(strval); print_debug_hex8(val); print_debug("\r\n");
+#endif
+}
+
+void sdram_no_memory(void)
+{
+ print_err("No memory!!\r\n");
+ while(1) {
+ hlt();
+ }
+}
+
+/* Setup SDRAM */
+#if RAMINIT_SYSINFO == 1
+void sdram_initialize(int controllers, const struct mem_controller *ctrl, void *sysinfo)
+#else
+void sdram_initialize(int controllers, const struct mem_controller *ctrl)
+#endif
+{
+ int i;
+ /* Set the registers we can set once to reasonable values */
+ for(i = 0; i < controllers; i++) {
+ print_debug_sdram_8("Ram1.",i);
+
+ #if RAMINIT_SYSINFO == 1
+ sdram_set_registers(ctrl + i , sysinfo);
+ #else
+ sdram_set_registers(ctrl + i);
+ #endif
+ }
+
+ /* Now setup those things we can auto detect */
+ for(i = 0; i < controllers; i++) {
+ print_debug_sdram_8("Ram2.",i);
+
+ #if RAMINIT_SYSINFO == 1
+ sdram_set_spd_registers(ctrl + i , sysinfo);
+ #else
+ sdram_set_spd_registers(ctrl + i);
+ #endif
+
+ }
+
+ /* Now that everything is setup enable the SDRAM.
+ * Some chipsets do the work for us while on others
+ * we need to it by hand.
+ */
+ print_debug("Ram3\r\n");
+
+ #if RAMINIT_SYSINFO == 1
+ sdram_enable(controllers, ctrl, sysinfo);
+ #else
+ sdram_enable(controllers, ctrl);
+ #endif
+
+ print_debug("Ram4\r\n");
+}
diff --git a/src/lib/ramtest.c b/src/lib/ramtest.c
new file mode 100644
index 0000000000..9f329ef51b
--- /dev/null
+++ b/src/lib/ramtest.c
@@ -0,0 +1,161 @@
+static void write_phys(unsigned long addr, unsigned long value)
+{
+#if CONFIG_HAVE_MOVNTI
+ asm volatile(
+ "movnti %1, (%0)"
+ : /* outputs */
+ : "r" (addr), "r" (value) /* inputs */
+#ifndef __GNUC__
+ : /* clobbers */
+#endif
+ );
+#else
+ volatile unsigned long *ptr;
+ ptr = (void *)addr;
+ *ptr = value;
+#endif
+}
+
+static unsigned long read_phys(unsigned long addr)
+{
+ volatile unsigned long *ptr;
+ ptr = (void *)addr;
+ return *ptr;
+}
+
+static void ram_fill(unsigned long start, unsigned long stop)
+{
+ unsigned long addr;
+ /*
+ * Fill.
+ */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("DRAM fill: 0x%08x-0x%08x\r\n", start, stop);
+#else
+ print_debug("DRAM fill: ");
+ print_debug_hex32(start);
+ print_debug("-");
+ print_debug_hex32(stop);
+ print_debug("\r\n");
+#endif
+ for(addr = start; addr < stop ; addr += 4) {
+ /* Display address being filled */
+ if (!(addr & 0xfffff)) {
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("%08x \r", addr);
+#else
+ print_debug_hex32(addr);
+ print_debug(" \r");
+#endif
+ }
+ write_phys(addr, addr);
+ };
+ /* Display final address */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("%08x\r\nDRAM filled\r\n", addr);
+#else
+ print_debug_hex32(addr);
+ print_debug("\r\nDRAM filled\r\n");
+#endif
+}
+
+static void ram_verify(unsigned long start, unsigned long stop)
+{
+ unsigned long addr;
+ int i = 0;
+ /*
+ * Verify.
+ */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("DRAM verify: 0x%08x-0x%08x\r\n", start, stop);
+#else
+ print_debug("DRAM verify: ");
+ print_debug_hex32(start);
+ print_debug_char('-');
+ print_debug_hex32(stop);
+ print_debug("\r\n");
+#endif
+ for(addr = start; addr < stop ; addr += 4) {
+ unsigned long value;
+ /* Display address being tested */
+ if (!(addr & 0xfffff)) {
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("%08x \r", addr);
+#else
+ print_debug_hex32(addr);
+ print_debug(" \r");
+#endif
+ }
+ value = read_phys(addr);
+ if (value != addr) {
+ /* Display address with error */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_err("Fail: @0x%08x Read value=0x%08x\r\n", addr, value);
+#else
+ print_err("Fail: @0x");
+ print_err_hex32(addr);
+ print_err(" Read value=0x");
+ print_err_hex32(value);
+ print_err("\r\n");
+#endif
+ i++;
+ if(i>256) {
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("Aborting.\n\r");
+#else
+ print_debug("Aborting.\n\r");
+#endif
+ break;
+ }
+ }
+ }
+ /* Display final address */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("%08x", addr);
+#else
+ print_debug_hex32(addr);
+#endif
+
+ if (i) {
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("\r\nDRAM did _NOT_ verify!\r\n");
+#else
+ print_debug("\r\nDRAM did _NOT_ verify!\r\n");
+#endif
+ die("DRAM ERROR");
+ }
+ else {
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("\r\nDRAM range verified.\r\n");
+#else
+ print_debug("\r\nDRAM range verified.\r\n");
+#endif
+ }
+}
+
+
+void ram_check(unsigned long start, unsigned long stop)
+{
+ /*
+ * This is much more of a "Is my DRAM properly configured?"
+ * test than a "Is my DRAM faulty?" test. Not all bits
+ * are tested. -Tyson
+ */
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("Testing DRAM : %08x - %08x\r\n", start, stop);
+#else
+ print_debug("Testing DRAM : ");
+ print_debug_hex32(start);
+ print_debug("-");
+ print_debug_hex32(stop);
+ print_debug("\r\n");
+#endif
+ ram_fill(start, stop);
+ ram_verify(start, stop);
+#if CONFIG_USE_PRINTK_IN_CAR
+ printk_debug("Done.\r\n");
+#else
+ print_debug("Done.\r\n");
+#endif
+}
+