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lib: utils/fdt: Extend fdt_parse_aclint_node() function

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The fdt_parse_aclint_node() is used to parse DT node for SiFive
CLINT, ACLINT MTIMER, and ACLINT MSWI devices.

The ACLINT MTIMER has undergone following changes:
1) MTIMER DT node now requires separate addresses in for MTIME
   register and MTIMECMPx registers in the reg DT property.
2) MTIMER DT node might have no interrupts-extended DT property
   when the MTIMER device has no associated HARTs (i.e. the
   MTIMER device has no MTIMECMPx registers)

This patch extends fdt_parse_aclint_node() to handle above
mentioned changes in ACLINT MTIMER DT bindings.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2021-07-23 15:37:51 +05:30
committed by Anup Patel
parent 7a3a0cce4d
commit f3a0eb8583
4 changed files with 49 additions and 30 deletions
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3
include/sbi_utils/fdt/fdt_helper.h
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@@ -72,7 +72,8 @@ int fdt_parse_plic_node(void *fdt, int nodeoffset, struct plic_data *plic);
int fdt_parse_plic(void *fdt, struct plic_data *plic, const char *compat);
int fdt_parse_aclint_node(void *fdt, int nodeoffset, bool for_timer,
unsigned long *out_addr, unsigned long *out_size,
unsigned long *out_addr1, unsigned long *out_size1,
unsigned long *out_addr2, unsigned long *out_size2,
u32 *out_first_hartid, u32 *out_hart_count);
int fdt_parse_compat_addr(void *fdt, uint64_t *addr,