From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Fri, 7 Aug 2020 17:49:02 +0000 (+0200)
Subject: software/bios: display SDRAM databits and freq.
X-Git-Tag: 24jan2021_ls180~6
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4cf28a010706365af86688f9b15096aeb28287c9;p=litex.git

software/bios: display SDRAM databits and freq.
---

diff --git a/litex/soc/software/bios/main.c b/litex/soc/software/bios/main.c
index b1c57e93..28a893b9 100644
--- a/litex/soc/software/bios/main.c
+++ b/litex/soc/software/bios/main.c
@@ -100,22 +100,29 @@ int main(int i, char **c)
 	printf(" LiteX git sha1: "LITEX_GIT_SHA1"\n");
 	printf("\n");
 	printf("--=============== \e[1mSoC\e[0m ==================--\n");
-	printf("\e[1mCPU\e[0m:       %s @ %dMHz\n",
+	printf("\e[1mCPU\e[0m:\t\t%s @ %dMHz\n",
 		CONFIG_CPU_HUMAN_NAME,
 		CONFIG_CLOCK_FREQUENCY/1000000);
-	printf("\e[1mBUS\e[0m:       %s %d-bit @ %dGiB\n",
+	printf("\e[1mBUS\e[0m:\t\t%s %d-bit @ %dGiB\n",
 		CONFIG_BUS_STANDARD,
 		CONFIG_BUS_DATA_WIDTH,
 		(1 << (CONFIG_BUS_ADDRESS_WIDTH - 30)));
-	printf("\e[1mCSR\e[0m:       %d-bit data\n",
+	printf("\e[1mCSR\e[0m:\t\t%d-bit data\n",
 		CONFIG_CSR_DATA_WIDTH);
-	printf("\e[1mROM\e[0m:       %dKiB\n", ROM_SIZE/1024);
-	printf("\e[1mSRAM\e[0m:      %dKiB\n", SRAM_SIZE/1024);
+	printf("\e[1mROM\e[0m:\t\t%dKiB\n", ROM_SIZE/1024);
+	printf("\e[1mSRAM\e[0m:\t\t%dKiB\n", SRAM_SIZE/1024);
 #ifdef CONFIG_L2_SIZE
-	printf("\e[1mL2\e[0m:        %dKiB\n", CONFIG_L2_SIZE/1024);
+	printf("\e[1mL2\e[0m:\t\t%dKiB\n", CONFIG_L2_SIZE/1024);
 #endif
 #ifdef MAIN_RAM_SIZE
-	printf("\e[1mMAIN-RAM\e[0m:  %dKiB\n", MAIN_RAM_SIZE/1024);
+#ifdef CSR_SDRAM_BASE
+	printf("\e[1mSDRAM\e[0m:\t\t%dKiB %d-bit @ %dMHz\n",
+		MAIN_RAM_SIZE/1024,
+		sdrdatabits(),
+		sdrfreq()/1000000);
+#else
+	printf("\e[1mMAIN-RAM\e[0m:\t%dKiB \n", MAIN_RAM_SIZE/1024);
+#endif
 #endif
 	printf("\n");
 
diff --git a/litex/soc/software/liblitedram/sdram.c b/litex/soc/software/liblitedram/sdram.c
index 0970a4c9..7946a9d1 100644
--- a/litex/soc/software/liblitedram/sdram.c
+++ b/litex/soc/software/liblitedram/sdram.c
@@ -42,6 +42,14 @@ __attribute__((unused)) static void cdelay(int i)
 
 #define DFII_PIX_DATA_BYTES DFII_PIX_DATA_SIZE*CSR_DATA_BYTES
 
+int sdrdatabits(void) {
+	return SDRAM_PHY_DATABITS;
+}
+
+int sdrfreq(void) {
+	return SDRAM_PHY_XDR*SDRAM_PHY_PHASES*CONFIG_CLOCK_FREQUENCY;
+}
+
 void sdrsw(void)
 {
 	sdram_dfii_control_write(DFII_CONTROL_CKE|DFII_CONTROL_ODT|DFII_CONTROL_RESET_N);
diff --git a/litex/soc/software/liblitedram/sdram.h b/litex/soc/software/liblitedram/sdram.h
index 087d0101..dbde558f 100644
--- a/litex/soc/software/liblitedram/sdram.h
+++ b/litex/soc/software/liblitedram/sdram.h
@@ -3,6 +3,9 @@
 
 #include <generated/csr.h>
 
+int sdrdatabits(void);
+int sdrfreq(void);
+
 void sdrsw(void);
 void sdrhw(void);
 void sdrrow(unsigned int row);