diff options
author | Tom Rini <trini@konsulko.com> | 2020-09-30 09:21:43 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2020-09-30 09:21:43 -0400 |
commit | 01114adfc1e0bf3cf5e2f3da858bb2c8e9810c1c (patch) | |
tree | 64ab9c9d1c2a5f3cc96b4c0fef1990cb73c1b356 /arch/riscv/lib/andes_plic.c | |
parent | 527fad0b2484bf1dd4c443c4c8f4384aa256938f (diff) | |
parent | 924de3216e9efdf1cdc71b8632099213aac03f2c (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.c | 58 |
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", ®); - 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", ®); + 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) |