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| author | roy zang <tie-fei.zang@freescale.com> | 2006-11-02 18:49:51 +0800 |
|---|---|---|
| committer | Zang Tiefei <roy@bus.ap.freescale.net> | 2006-11-02 18:49:51 +0800 |
| commit | 4c52783b3d024e153c4972b97332e314bc3bdc46 (patch) | |
| tree | ffc40c217c1b6b32e47837edaa0981f6e62403f5 /cpu/74xx_7xx/cpu.c | |
| parent | 69366bf42f22d67efce8da3f8c40a43d4a3c2695 (diff) | |
| download | talos-obmc-uboot-4c52783b3d024e153c4972b97332e314bc3bdc46.tar.gz talos-obmc-uboot-4c52783b3d024e153c4972b97332e314bc3bdc46.zip | |
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.c | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c index ca45e17edb..c3aadca292 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 +/* ------------------------------------------------------------------------- */ |
