All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andes <uboot@andestech.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 4/9] riscv: ae350: initialize PLIC
Date: Tue, 19 Mar 2019 17:07:45 +0800	[thread overview]
Message-ID: <20190319090750.8923-5-uboot@andestech.com> (raw)
In-Reply-To: <20190319090750.8923-1-uboot@andestech.com>

From: Rick Chen <rick@andestech.com>

Initialize PLIC when ae350 board startup.

Signed-off-by: Rick Chen <rick@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
---
 board/AndesTech/ax25-ae350/ax25-ae350.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/board/AndesTech/ax25-ae350/ax25-ae350.c b/board/AndesTech/ax25-ae350/ax25-ae350.c
index d343453..ebeb4b8 100644
--- a/board/AndesTech/ax25-ae350/ax25-ae350.c
+++ b/board/AndesTech/ax25-ae350/ax25-ae350.c
@@ -11,10 +11,17 @@
 #include <linux/io.h>
 #include <faraday/ftsmc020.h>
 #include <fdtdec.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <dm/uclass-internal.h>
+#include <cpu.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 extern phys_addr_t prior_stage_fdt_address;
+extern int plic_init(int harts);
+
 /*
  * Miscellaneous platform dependent initializations
  */
@@ -97,9 +104,32 @@ int smc_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_NDS_PLIC
+int init_plic(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = uclass_find_first_device(UCLASS_CPU, &dev);
+	if (ret)
+		return ret;
+
+	if (ret == 0 && dev != NULL) {
+		ret = cpu_get_count(dev);
+		plic_init(ret);
+		return 0;
+	}
+
+	return -ENODEV;
+}
+#endif
+
 #ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_early_init_f(void)
 {
+#ifdef CONFIG_NDS_PLIC
+	init_plic();
+#endif
 	smc_init();
 
 	return 0;
-- 
2.7.4

  parent reply	other threads:[~2019-03-19  9:07 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-19  9:07 [U-Boot] [PATCH 0/9] AE350 SMP support RISC-V Andes
2019-03-19  9:07 ` [U-Boot] [PATCH 1/9] riscv: ax25: Create a simple-bus driver for the soc node Andes
2019-03-20  7:22   ` Bin Meng
2019-03-21  6:49     ` Rick Chen
2019-03-21  7:01       ` Bin Meng
2019-03-21  8:28         ` Rick Chen
2019-03-21  8:49           ` Bin Meng
2019-03-21  9:01             ` Rick Chen
2019-03-21  9:16               ` Bin Meng
2019-04-10  9:05                 ` Rick Chen
2019-04-10  9:21                   ` Auer, Lukas
2019-04-10  9:30                     ` Rick Chen
2019-03-19  9:07 ` [U-Boot] [PATCH 2/9] riscv: Add a SYSCON driver for Andestech's PLIC Andes
2019-03-20  7:22   ` Bin Meng
2019-03-21  7:04     ` Rick Chen
2019-03-21  7:32       ` Bin Meng
2019-03-21  8:39         ` Rick Chen
2019-03-21 16:24           ` Troy Benjegerdes
2019-03-19  9:07 ` [U-Boot] [PATCH 3/9] riscv: Add a SYSCON driver for Andestech's PLMT Andes
2019-03-20  7:22   ` Bin Meng
2019-03-21  8:41     ` Rick Chen
2019-03-19  9:07 ` Andes [this message]
2019-03-19  9:07 ` [U-Boot] [PATCH 5/9] riscv: ae350: disable ATCPIT100 timer Andes
2019-03-20  7:22   ` Bin Meng
2019-03-19  9:07 ` [U-Boot] [PATCH 6/9] riscv: ax25: Add platform-specific Kconfig options Andes
2019-03-20  7:22   ` Bin Meng
2019-03-19  9:07 ` [U-Boot] [PATCH 7/9] riscv: ax25: Andes specific cache shall only support in M-mode Andes
2019-03-20  7:22   ` Bin Meng
2019-03-21  8:42     ` Rick Chen
2019-03-19  9:07 ` [U-Boot] [PATCH 8/9] riscv: dts: ae350 support SMP Andes
2019-03-20  7:22   ` Bin Meng
2019-03-21  8:51     ` Rick Chen
2019-03-21  9:15       ` Bin Meng
2019-03-21  9:38         ` Rick Chen
2019-03-21 10:12           ` Bin Meng
2019-03-21 10:16             ` Rick Chen
2019-03-19  9:07 ` [U-Boot] [PATCH 9/9] riscv: ae350: enable SMP Andes
2019-03-20  7:22   ` Bin Meng

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190319090750.8923-5-uboot@andestech.com \
    --to=uboot@andestech.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.