86xx: Reset update
Update the 86xx reset sequence to try executing a board-specific reset
function. If the board-specific reset is not implemented or does not
succeed, then assert #HRESET_REQ. Using #HRESET_REQ is a more standard
reset procedure than the previous method and allows all board
peripherals to be reset if needed.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd.c b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
index a2097a5..b419dcc 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
@@ -484,3 +484,11 @@
{
return pci_eth_init(bis);
}
+
+void board_reset(void)
+{
+ out8(PIXIS_BASE + PIXIS_RST, 0);
+
+ while (1)
+ ;
+}
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index 28c1683..49718da 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -363,3 +363,11 @@
cpu_eth_init(bis);
return pci_eth_init(bis);
}
+
+void board_reset(void)
+{
+ out8(PIXIS_BASE + PIXIS_RST, 0);
+
+ while (1)
+ ;
+}
diff --git a/board/sbc8641d/sbc8641d.c b/board/sbc8641d/sbc8641d.c
index 508bdc5..52ad2d8 100644
--- a/board/sbc8641d/sbc8641d.c
+++ b/board/sbc8641d/sbc8641d.c
@@ -384,3 +384,32 @@
return val;
}
+
+void board_reset(void)
+{
+#ifdef CONFIG_SYS_RESET_ADDRESS
+ ulong addr = CONFIG_SYS_RESET_ADDRESS;
+
+ /* flush and disable I/D cache */
+ __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
+ __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
+ __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
+ __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
+ __asm__ __volatile__ ("sync");
+ __asm__ __volatile__ ("mtspr 1008, 4");
+ __asm__ __volatile__ ("isync");
+ __asm__ __volatile__ ("sync");
+ __asm__ __volatile__ ("mtspr 1008, 5");
+ __asm__ __volatile__ ("isync");
+ __asm__ __volatile__ ("sync");
+
+ /*
+ * SRR0 has system reset vector, SRR1 has default MSR value
+ * rfi restores MSR from SRR1 and sets the PC to the SRR0 value
+ */
+ __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
+ __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
+ __asm__ __volatile__ ("mtspr 27, 4");
+ __asm__ __volatile__ ("rfi");
+#endif
+}