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Enable parsing simple-bus 'ranges' with multiple entries

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This patch makes possible to boot with up to 8 ranges in soc.
Dynamic allocation cannot be used, because ftd_get_ranges
function is called early, when malloc is not available.

Change is required for the alignment of Marvell Armada 38x
device trees present in sys/gnu/dts/arm - originally
the platform has 6 entries in simple-bus 'ranges'.

Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: manu, nwhitehorn, cognet (mentor)
Approved by: cognet (mentor)
Obtained from: Semihalf
Differential Revision: https://reviews.freebsd.org/D11876
This commit is contained in:
Marcin Wojtas 2017-08-09 00:45:25 +00:00
parent b8c53507cb
commit bfd084c8c4
1 changed files with 2 additions and 1 deletions
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3
sys/dev/fdt/fdt_common.c
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@ -60,6 +60,7 @@ __FBSDID("$FreeBSD$");
#define FDT_TYPE_LEN 64
#define FDT_REG_CELLS 4
#define FDT_RANGES_SIZE 48
SYSCTL_NODE(_hw, OID_AUTO, fdt, CTLFLAG_RD, 0, "Flattened Device Tree");
@ -149,7 +150,7 @@ fdt_get_range_by_busaddr(phandle_t node, u_long addr, u_long *base,
int
fdt_get_range(phandle_t node, int range_id, u_long *base, u_long *size)
{
pcell_t ranges[6], *rangesptr;
pcell_t ranges[FDT_RANGES_SIZE], *rangesptr;
pcell_t addr_cells, size_cells, par_addr_cells;
u_long par_bus_addr, pbase, psize;
int err, len, tuple_size, tuples;