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Configure CPU window to second CESA SRAM

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Check if there is a second CESA SRAM node in FDT and add a CPU window
for it. Define A38X specific macro for setting device attribute for
each node.

Submitted by:	Michal Stanek <mst@semihalf.com>
Obtained from:	Semihalf
Sponsored by:	Stormshield
Differential revision:	https://reviews.freebsd.org/D6216
This commit is contained in:
Zbigniew Bodek 2016-06-02 18:33:26 +00:00
parent 5188e3cca6
commit 5d7cb9a803
2 changed files with 44 additions and 0 deletions
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31
sys/arm/mv/mv_common.c
View File

@ -2107,6 +2107,37 @@ moveon:
return (EINVAL);
cpu_win_tbl[t].target = MV_WIN_CESA_TARGET;
#ifdef SOC_MV_ARMADA38X
cpu_win_tbl[t].attr = MV_WIN_CESA_ATTR(0);
#else
cpu_win_tbl[t].attr = MV_WIN_CESA_ATTR(1);
#endif
cpu_win_tbl[t].base = sram_base;
cpu_win_tbl[t].size = sram_size;
cpu_win_tbl[t].remap = ~0;
cpu_wins_no++;
debugf("sram: base = 0x%0lx size = 0x%0lx\n", sram_base, sram_size);
/* Check if there is a second CESA node */
while ((node = OF_peer(node)) != 0) {
if (fdt_is_compatible(node, "mrvl,cesa-sram")) {
if (fdt_regsize(node, &sram_base, &sram_size) != 0)
return (EINVAL);
break;
}
}
if (node == 0)
return (0);
t++;
if (t >= ((sizeof(cpu_win_tbl))/(sizeof(cpu_win_tbl[0])))) {
debugf("cannot fit CESA tuple into cpu_win_tbl\n");
return (ENOMEM);
}
/* Configure window for CESA1 */
cpu_win_tbl[t].target = MV_WIN_CESA_TARGET;
cpu_win_tbl[t].attr = MV_WIN_CESA_ATTR(1);
cpu_win_tbl[t].base = sram_base;
cpu_win_tbl[t].size = sram_size;

13
sys/arm/mv/mvwin.h
View File

@ -233,6 +233,19 @@
* 2: engine0
*/
#define MV_WIN_CESA_ATTR(eng_sel) (1 | ((eng_sel) << 2))
#elif defined(SOC_MV_ARMADA38X)
#define MV_WIN_CESA_TARGET 9
/*
* Bits [1:0] = Data swapping
* 0x0 = Byte swap
* 0x1 = No swap
* 0x2 = Byte and word swap
* 0x3 = Word swap
* Bits [4:2] = CESA select:
* 0x6 = CESA0
* 0x5 = CESA1
*/
#define MV_WIN_CESA_ATTR(eng_sel) (0x11 | (1 << (3 - (eng_sel))))
#else
#define MV_WIN_CESA_TARGET 3
#define MV_WIN_CESA_ATTR(eng_sel) 0