This is actually required in order for a Linux kernel to boot successfully on a physical Malta board. Without enabling the RTC, a Malta Linux kernel will get stuck in its estimate_frequencies function on boot.
Signed-off-by: Paul Burton paul.burton@imgtec.com --- Changes in v2: - rebase atop master - included within "MIPS Malta board support series" --- board/imgtec/malta/malta.c | 8 ++++++++ drivers/rtc/mc146818.c | 2 +- include/configs/malta.h | 5 +++++ 3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/board/imgtec/malta/malta.c b/board/imgtec/malta/malta.c index 119546a..2f92259 100644 --- a/board/imgtec/malta/malta.c +++ b/board/imgtec/malta/malta.c @@ -9,6 +9,7 @@ #include <netdev.h> #include <pci_gt64120.h> #include <pci_msc01.h> +#include <rtc.h> #include <serial.h>
#include <asm/addrspace.h> @@ -147,6 +148,13 @@ int board_early_init_f(void) return 0; }
+int misc_init_r(void) +{ + rtc_reset(); + + return 0; +} + struct serial_device *default_serial_console(void) { switch (malta_sys_con()) { diff --git a/drivers/rtc/mc146818.c b/drivers/rtc/mc146818.c index 5f9d359..f7cf106 100644 --- a/drivers/rtc/mc146818.c +++ b/drivers/rtc/mc146818.c @@ -15,7 +15,7 @@ #include <command.h> #include <rtc.h>
-#ifdef __I386__ +#if defined(__I386__) || defined(CONFIG_MALTA) #include <asm/io.h> #define in8(p) inb(p) #define out8(p, v) outb(v, p) diff --git a/include/configs/malta.h b/include/configs/malta.h index 5368308..230aa56 100644 --- a/include/configs/malta.h +++ b/include/configs/malta.h @@ -23,6 +23,10 @@ #define CONFIG_PCNET_79C973 #define PCNET_HAS_PROM
+#define CONFIG_MISC_INIT_R +#define CONFIG_RTC_MC146818 +#define CONFIG_SYS_ISA_IO_BASE_ADDRESS 0 + /* * CPU Configuration */ @@ -105,6 +109,7 @@ #undef CONFIG_CMD_LOADS #undef CONFIG_CMD_NFS
+#define CONFIG_CMD_DATE #define CONFIG_CMD_DHCP #define CONFIG_CMD_PCI #define CONFIG_CMD_PING