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authorroy zang <tie-fei.zang@freescale.com>2006-11-02 18:49:51 +0800
committerZang Tiefei <roy@bus.ap.freescale.net>2006-11-02 18:49:51 +0800
commit4c52783b3d024e153c4972b97332e314bc3bdc46 (patch)
treeffc40c217c1b6b32e47837edaa0981f6e62403f5 /cpu/74xx_7xx/cpu.c
parent69366bf42f22d67efce8da3f8c40a43d4a3c2695 (diff)
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General code modification for mpc7448hpc2 board support.
1. Add 7447A and 7448 processor support. 2. Add the following flags. CFG_CONFIG_BUS_CLK : If the 74xx bus frequency can be configured dynamically (such as by switch on board), this flag should be set. CFG_EXCEPTION_AFTER_RELOCATE: If an exception occurs after the u-boot relocates to RAM, this flag should be set. CFG_SERIAL_HANG_IN_EXCEPTION: If the print out function will cause the system hang in exception, this flag should be set. There is a design issue for tsi108/109 pci configure read. When pci scan the slots, if there is no pci card, the tsi108/9 will cause a machine check exception for mpc7448 processor. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Diffstat (limited to 'cpu/74xx_7xx/cpu.c')
-rw-r--r--cpu/74xx_7xx/cpu.c54
1 files changed, 50 insertions, 4 deletions
diff --git a/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c
index ca45e17..c3aadca 100644
--- a/cpu/74xx_7xx/cpu.c
+++ b/cpu/74xx_7xx/cpu.c
@@ -44,6 +44,10 @@
#include <74xx_7xx.h>
#include <asm/cache.h>
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#endif
+
#ifdef CONFIG_AMIGAONEG3SE
#include "../board/MAI/AmigaOneG3SE/via686.h"
#include "../board/MAI/AmigaOneG3SE/memio.h"
@@ -101,6 +105,14 @@ get_cpu_type(void)
type = CPU_7457;
break;
+ case 0x8003:
+ type = CPU_7447A;
+ break;
+
+ case 0x8004:
+ type = CPU_7448;
+ break;
+
default:
break;
}
@@ -164,6 +176,14 @@ int checkcpu (void)
str = "MPC7457";
break;
+ case CPU_7447A:
+ str = "MPC7447A";
+ break;
+
+ case CPU_7448:
+ str = "MPC7448";
+ break;
+
default:
printf("Unknown CPU -- PVR: 0x%08x\n", pvr);
return -1;
@@ -256,20 +276,19 @@ do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
/*
* For the 7400 the TB clock runs at 1/4 the cpu bus speed.
*/
-#ifdef CONFIG_AMIGAONEG3SE
+#if defined(CONFIG_AMIGAONEG3SE) || defined(CFG_CONFIG_BUS_CLK)
unsigned long get_tbclk(void)
{
return (gd->bus_clk / 4);
}
-#else /* ! CONFIG_AMIGAONEG3SE */
+#else /* ! CONFIG_AMIGAONEG3SE and !CFG_CONFIG_BUS_CLK*/
unsigned long get_tbclk (void)
{
return CFG_BUS_HZ / 4;
}
-#endif /* CONFIG_AMIGAONEG3SE */
+#endif /* CONFIG_AMIGAONEG3SE or CFG_CONFIG_BUS_CLK*/
/* ------------------------------------------------------------------------- */
-
#if defined(CONFIG_WATCHDOG)
#if !defined(CONFIG_PCIPPC2) && !defined(CONFIG_BAB7xx)
void
@@ -281,3 +300,30 @@ watchdog_reset(void)
#endif /* CONFIG_WATCHDOG */
/* ------------------------------------------------------------------------- */
+
+#ifdef CONFIG_OF_FLAT_TREE
+void
+ft_cpu_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ ulong clock;
+ int len;
+
+ clock = bd->bi_busfreq;
+
+ p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
+ if (p != NULL)
+ *p = cpu_to_be32(clock);
+
+#if defined(CONFIG_TSI108_ETH)
+ p = ft_get_prop(blob, "/" OF_TSI "/ethernet@6200/address", &len);
+ memcpy(p, bd->bi_enetaddr, 6);
+#endif
+
+#if defined(CONFIG_HAS_ETH1)
+ p = ft_get_prop(blob, "/" OF_TSI "/ethernet@6600/address", &len);
+ memcpy(p, bd->bi_enet1addr, 6);
+#endif
+}
+#endif
+/* ------------------------------------------------------------------------- */