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lib: reset/fdt_reset_atcwdt200: Use defined macros and function in atcsmu.h

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Reuse the smu related macros and function in atcsmu.h.

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Yu Chien Peter Lin
2023-01-20 11:05:12 +08:00
committed by Anup Patel
parent 787296ae92
commit 7aaeeab9e7
2 changed files with 9 additions and 13 deletions
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1
lib/utils/reset/Kconfig
View File

@@ -11,6 +11,7 @@ if FDT_RESET
config FDT_RESET_ATCWDT200
bool "Andes WDT FDT reset driver"
depends on SYS_ATCSMU
default n
config FDT_RESET_GPIO

21
lib/utils/reset/fdt_reset_atcwdt200.c
View File

@@ -16,6 +16,7 @@
#include <sbi/sbi_system.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/reset/fdt_reset.h>
#include <sbi_utils/sys/atcsmu.h>
#define ATCWDT200_WP_NUM 0x5aa5
#define WREN_REG 0x18
@@ -41,14 +42,8 @@
#define CLK_PCLK (1 << 1)
#define WDT_EN (1 << 0)
#define FLASH_BASE 0x80000000ULL
#define SMU_RESET_VEC_LO_OFF 0x50
#define SMU_RESET_VEC_HI_OFF 0x60
#define SMU_HARTn_RESET_VEC_LO(n) (SMU_RESET_VEC_LO_OFF + (n * 0x4))
#define SMU_HARTn_RESET_VEC_HI(n) (SMU_RESET_VEC_HI_OFF + (n * 0x4))
static volatile char *wdt_addr;
static volatile char *smu_addr;
static volatile char *wdt_addr = NULL;
static struct smu_data smu = { 0 };
static int ae350_system_reset_check(u32 type, u32 reason)
{
@@ -66,16 +61,16 @@ static void ae350_system_reset(u32 type, u32 reason)
{
const struct sbi_platform *plat = sbi_platform_thishart_ptr();
for (int i = 0; i < sbi_platform_hart_count(plat); i++) {
writel(FLASH_BASE, smu_addr + SMU_HARTn_RESET_VEC_LO(i));
writel(FLASH_BASE >> 32, smu_addr + SMU_HARTn_RESET_VEC_HI(i));
}
for (int i = 0; i < sbi_platform_hart_count(plat); i++)
if (smu_set_reset_vector(&smu, FLASH_BASE, i))
goto fail;
/* Program WDT control register */
writew(ATCWDT200_WP_NUM, wdt_addr + WREN_REG);
writel(INT_CLK_32768 | INT_EN | RST_CLK_128 | RST_EN | WDT_EN,
wdt_addr + CTRL_REG);
fail:
sbi_hart_hang();
}
@@ -104,7 +99,7 @@ static int atcwdt200_reset_init(void *fdt, int nodeoff,
if (fdt_parse_compat_addr(fdt, &reg_addr, "andestech,atcsmu"))
return SBI_ENODEV;
smu_addr = (volatile char *)(unsigned long)reg_addr;
smu.addr = (unsigned long)reg_addr;
sbi_system_reset_add_device(&atcwdt200_reset);