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watchdog: aspeed: Add support for AST2700 platform

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Add AST2700 platform support to the ASPEED watchdog driver. This includes
a new per-platform configuration with SCU reset status register at
SCU1_070 and support for 5 reset mask registers.

Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Chin-Ting Kuo
2025-10-10 16:03:15 +08:00
committed by Wim Van Sebroeck
parent 0eb54296dc
commit 13e8664671
1 changed files with 15 additions and 1 deletions
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16
drivers/watchdog/aspeed_wdt.c
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@@ -83,10 +83,24 @@ static const struct aspeed_wdt_config ast2600_config = {
.num_reset_masks = 2,
};
static const struct aspeed_wdt_config ast2700_config = {
.ext_pulse_width_mask = 0xfffff,
.irq_shift = 0,
.irq_mask = GENMASK(31, 10),
.scu = {
.compatible = "aspeed,ast2700-scu0",
.reset_status_reg = 0x70,
.wdt_reset_mask = 0xf,
.wdt_reset_mask_shift = 0,
},
.num_reset_masks = 5,
};
static const struct of_device_id aspeed_wdt_of_table[] = {
{ .compatible = "aspeed,ast2400-wdt", .data = &ast2400_config },
{ .compatible = "aspeed,ast2500-wdt", .data = &ast2500_config },
{ .compatible = "aspeed,ast2600-wdt", .data = &ast2600_config },
{ .compatible = "aspeed,ast2700-wdt", .data = &ast2700_config },
{ },
};
MODULE_DEVICE_TABLE(of, aspeed_wdt_of_table);
@@ -483,7 +497,7 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
}
if (!of_device_is_compatible(np, "aspeed,ast2400-wdt")) {
u32 reset_mask[2];
u32 reset_mask[5];
size_t nrstmask = wdt->cfg->num_reset_masks;
u32 reg = readl(wdt->base + WDT_RESET_WIDTH);
int i;