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authorTom Rini <trini@konsulko.com>2020-09-30 09:21:43 -0400
committerTom Rini <trini@konsulko.com>2020-09-30 09:21:43 -0400
commit01114adfc1e0bf3cf5e2f3da858bb2c8e9810c1c (patch)
tree64ab9c9d1c2a5f3cc96b4c0fef1990cb73c1b356 /arch/riscv/lib/andes_plic.c
parent527fad0b2484bf1dd4c443c4c8f4384aa256938f (diff)
parent924de3216e9efdf1cdc71b8632099213aac03f2c (diff)
Merge branch 'next' of https://gitlab.denx.de/u-boot/custodians/u-boot-riscv into next
- Disable CMD_IRQ for RISC-V. - Update sipeed/maix doc - Obtain reg of SiFive RAM via dev_read_addr_index() instead of regmap API. - Cleans up RISC-V timer drivers and converts them to DM. - Correctly handle IPIs already pending upon prior stage bootloader (on the K210)
Diffstat (limited to 'arch/riscv/lib/andes_plic.c')
-rw-r--r--arch/riscv/lib/andes_plic.c58
1 files changed, 25 insertions, 33 deletions
diff --git a/arch/riscv/lib/andes_plic.c b/arch/riscv/lib/andes_plic.c
index c2a8fe4d9e9..267d6a191b2 100644
--- a/arch/riscv/lib/andes_plic.c
+++ b/arch/riscv/lib/andes_plic.c
@@ -41,53 +41,45 @@ static int enable_ipi(int hart)
return 0;
}
-static int init_plic(void)
+int riscv_init_ipi(void)
{
- struct udevice *dev;
- ofnode node;
int ret;
+ long *base = syscon_get_first_range(RISCV_SYSCON_PLIC);
+ ofnode node;
+ struct udevice *dev;
u32 reg;
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+ gd->arch.plic = base;
+
ret = uclass_find_first_device(UCLASS_CPU, &dev);
if (ret)
return ret;
+ else if (!dev)
+ return -ENODEV;
- if (dev) {
- ofnode_for_each_subnode(node, dev_ofnode(dev->parent)) {
- const char *device_type;
-
- device_type = ofnode_read_string(node, "device_type");
- if (!device_type)
- continue;
+ ofnode_for_each_subnode(node, dev_ofnode(dev->parent)) {
+ const char *device_type;
- if (strcmp(device_type, "cpu"))
- continue;
+ device_type = ofnode_read_string(node, "device_type");
+ if (!device_type)
+ continue;
- /* skip if hart is marked as not available */
- if (!ofnode_is_available(node))
- continue;
+ if (strcmp(device_type, "cpu"))
+ continue;
- /* read hart ID of CPU */
- ret = ofnode_read_u32(node, "reg", &reg);
- if (ret == 0)
- enable_ipi(reg);
- }
+ /* skip if hart is marked as not available */
+ if (!ofnode_is_available(node))
+ continue;
- return 0;
+ /* read hart ID of CPU */
+ ret = ofnode_read_u32(node, "reg", &reg);
+ if (ret == 0)
+ enable_ipi(reg);
}
- return -ENODEV;
-}
-
-int riscv_init_ipi(void)
-{
- long *ret = syscon_get_first_range(RISCV_SYSCON_PLIC);
-
- if (IS_ERR(ret))
- return PTR_ERR(ret);
- gd->arch.plic = ret;
-
- return init_plic();
+ return 0;
}
int riscv_send_ipi(int hart)