diff options
| author | Anup Patel <anup.patel@wdc.com> | 2021-05-20 13:38:38 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-06-24 09:39:48 +0530 |
| commit | bd5d2089b80742a210b257c8e6c1361310725200 (patch) | |
| tree | ada664073241ca2ac195f1cd1f15001307c0e520 /lib/utils/fdt | |
| parent | 5a049fe1d6a5d1c381113853fce3afad6573bb56 (diff) | |
lib: utils: Add FDT parsing API common for both ACLINT and CLINT
We add fdt_parse_aclint_node() which can parse both ACLINT and
CLINT DT nodes. This means fdt_parse_clint_node() is not required
anymore so we remove it as well.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Diffstat (limited to 'lib/utils/fdt')
| -rw-r--r-- | lib/utils/fdt/fdt_helper.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/lib/utils/fdt/fdt_helper.c b/lib/utils/fdt/fdt_helper.c index 9143e44..de77196 100644 --- a/lib/utils/fdt/fdt_helper.c +++ b/lib/utils/fdt/fdt_helper.c @@ -14,7 +14,6 @@ #include <sbi/sbi_scratch.h> #include <sbi_utils/fdt/fdt_helper.h> #include <sbi_utils/irqchip/plic.h> -#include <sbi_utils/sys/clint.h> #define DEFAULT_UART_FREQ 0 #define DEFAULT_UART_BAUD 115200 @@ -421,8 +420,9 @@ int fdt_parse_plic(void *fdt, struct plic_data *plic, const char *compat) return fdt_parse_plic_node(fdt, nodeoffset, plic); } -int fdt_parse_clint_node(void *fdt, int nodeoffset, bool for_timer, - struct clint_data *clint) +int fdt_parse_aclint_node(void *fdt, int nodeoffset, bool for_timer, + unsigned long *out_addr, unsigned long *out_size, + u32 *out_first_hartid, u32 *out_hart_count) { const fdt32_t *val; unsigned long reg_addr, reg_size; @@ -430,22 +430,25 @@ int fdt_parse_clint_node(void *fdt, int nodeoffset, bool for_timer, u32 phandle, hwirq, hartid, first_hartid, last_hartid; u32 match_hwirq = (for_timer) ? IRQ_M_TIMER : IRQ_M_SOFT; - if (nodeoffset < 0 || !clint || !fdt) - return SBI_ENODEV; + if (nodeoffset < 0 || !fdt || + !out_addr || !out_size || + !out_first_hartid || !out_hart_count) + return SBI_EINVAL; rc = fdt_get_node_addr_size(fdt, nodeoffset, ®_addr, ®_size); if (rc < 0 || !reg_addr || !reg_size) return SBI_ENODEV; - clint->addr = reg_addr; + *out_addr = reg_addr; + *out_size = reg_size; val = fdt_getprop(fdt, nodeoffset, "interrupts-extended", &count); if (!val || count < sizeof(fdt32_t)) - return SBI_EINVAL; + return SBI_ENODEV; count = count / sizeof(fdt32_t); first_hartid = -1U; last_hartid = 0; - clint->hart_count = 0; + *out_hart_count = 0; for (i = 0; i < count; i += 2) { phandle = fdt32_to_cpu(val[i]); hwirq = fdt32_to_cpu(val[i + 1]); @@ -470,21 +473,17 @@ int fdt_parse_clint_node(void *fdt, int nodeoffset, bool for_timer, first_hartid = hartid; if (hartid > last_hartid) last_hartid = hartid; - clint->hart_count++; + (*out_hart_count)++; } } if ((last_hartid < first_hartid) || first_hartid == -1U) return SBI_ENODEV; - clint->first_hartid = first_hartid; + *out_first_hartid = first_hartid; count = last_hartid - first_hartid + 1; - if (clint->hart_count < count) - clint->hart_count = count; - - clint->has_64bit_mmio = TRUE; - if (fdt_getprop(fdt, nodeoffset, "clint,has-no-64bit-mmio", &count)) - clint->has_64bit_mmio = FALSE; + if (*out_hart_count < count) + *out_hart_count = count; return 0; } |