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sparc: leon3: Reimplemented AMBA Plug&Play scanning routines.

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Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
This commit is contained in:
Daniel Hellstrom
2010-01-25 09:54:51 +01:00
committed by Francois Retief
parent 0070109f68
commit 898cc81da3
11 changed files with 2112 additions and 773 deletions
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15
drivers/net/greth.c
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@@ -34,6 +34,13 @@
#define GRETH_PHY_ADR_DEFAULT 0
#endif
/* Let board select which GRETH to use as network interface, set
* this to zero if only one GRETH is available.
*/
#ifndef CONFIG_SYS_GRLIB_GRETH_INDEX
#define CONFIG_SYS_GRLIB_GRETH_INDEX 0
#endif
/* ByPass Cache when reading regs */
#define GRETH_REGLOAD(addr) SPARC_NOCACHE_READ(addr)
/* Write-through cache ==> no bypassing needed on writes */
@@ -593,8 +600,12 @@ int greth_initialize(bd_t * bis)
debug("Scanning for GRETH\n");
/* Find Device & IRQ via AMBA Plug&Play information */
if (ambapp_apb_first(VENDOR_GAISLER, GAISLER_ETHMAC, &apbdev) != 1) {
/* Find Device & IRQ via AMBA Plug&Play information,
* CONFIG_SYS_GRLIB_GRETH_INDEX select which GRETH if multiple
* GRETHs in system.
*/
if (ambapp_apb_find(&ambapp_plb, VENDOR_GAISLER, GAISLER_ETHMAC,
CONFIG_SYS_GRLIB_GRETH_INDEX, &apbdev) != 1) {
return -1; /* GRETH not found */
}