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MIPS: Netlogic: XLP9XX bridge and DRAM code

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Update bridge code. Add code to the XLP9XX registers for DRAM
size, limit and node when running on XLPXX

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6282/
This commit is contained in:
Jayachandran C
2013-12-21 16:52:25 +05:30
committed by Ralf Baechle
parent 61673de131
commit e7aa6c66b0
2 changed files with 51 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/mips/netlogic/xlp/nlm_hal.c
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@@ -314,21 +314,33 @@ int xlp_get_dram_map(int n, uint64_t *dram_map)
{
uint64_t bridgebase, base, lim;
uint32_t val;
unsigned int barreg, limreg, xlatreg;
int i, node, rv;
/* Look only at mapping on Node 0, we don't handle crazy configs */
bridgebase = nlm_get_bridge_regbase(0);
rv = 0;
for (i = 0; i < 8; i++) {
val = nlm_read_bridge_reg(bridgebase,
BRIDGE_DRAM_NODE_TRANSLN(i));
node = (val >> 1) & 0x3;
if (n >= 0 && n != node)
continue;
val = nlm_read_bridge_reg(bridgebase, BRIDGE_DRAM_BAR(i));
if (cpu_is_xlp9xx()) {
barreg = BRIDGE_9XX_DRAM_BAR(i);
limreg = BRIDGE_9XX_DRAM_LIMIT(i);
xlatreg = BRIDGE_9XX_DRAM_NODE_TRANSLN(i);
} else {
barreg = BRIDGE_DRAM_BAR(i);
limreg = BRIDGE_DRAM_LIMIT(i);
xlatreg = BRIDGE_DRAM_NODE_TRANSLN(i);
}
if (n >= 0) {
/* node specified, get node mapping of BAR */
val = nlm_read_bridge_reg(bridgebase, xlatreg);
node = (val >> 1) & 0x3;
if (n != node)
continue;
}
val = nlm_read_bridge_reg(bridgebase, barreg);
val = (val >> 12) & 0xfffff;
base = (uint64_t) val << 20;
val = nlm_read_bridge_reg(bridgebase, BRIDGE_DRAM_LIMIT(i));
val = nlm_read_bridge_reg(bridgebase, limreg);
val = (val >> 12) & 0xfffff;
if (val == 0) /* BAR not used */
continue;