All of lore.kernel.org
 help / color / mirror / Atom feed
From: Simon Glass <sjg@chromium.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v5 11/19] arm: rpi: Add a function to obtain the MMC clock
Date: Sat,  1 Apr 2017 12:05:48 -0600	[thread overview]
Message-ID: <20170401180556.2416-12-sjg@chromium.org> (raw)
In-Reply-To: <20170401180556.2416-1-sjg@chromium.org>

Move this code into the new message handler file.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v5: None
Changes in v4: None
Changes in v3: None

 arch/arm/mach-bcm283x/include/mach/msg.h |  7 +++++++
 arch/arm/mach-bcm283x/msg.c              | 28 ++++++++++++++++++++++++++++
 board/raspberrypi/rpi/rpi.c              | 16 ++++------------
 3 files changed, 39 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-bcm283x/include/mach/msg.h b/arch/arm/mach-bcm283x/include/mach/msg.h
index 3bcb5db3e6..8fd4ace124 100644
--- a/arch/arm/mach-bcm283x/include/mach/msg.h
+++ b/arch/arm/mach-bcm283x/include/mach/msg.h
@@ -15,4 +15,11 @@
  */
 int bcm2835_power_on_module(u32 module);
 
+/**
+ * bcm2835_get_mmc_clock() - get the frequency of the MMC clock
+ *
+ * @return clock frequency, or -ve on error
+ */
+int bcm2835_get_mmc_clock(void);
+
 #endif
diff --git a/arch/arm/mach-bcm283x/msg.c b/arch/arm/mach-bcm283x/msg.c
index 08b1beaa53..facb916711 100644
--- a/arch/arm/mach-bcm283x/msg.c
+++ b/arch/arm/mach-bcm283x/msg.c
@@ -14,6 +14,12 @@ struct msg_set_power_state {
 	u32 end_tag;
 };
 
+struct msg_get_clock_rate {
+	struct bcm2835_mbox_hdr hdr;
+	struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
+	u32 end_tag;
+};
+
 int bcm2835_power_on_module(u32 module)
 {
 	ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1);
@@ -37,3 +43,25 @@ int bcm2835_power_on_module(u32 module)
 
 	return 0;
 }
+
+int bcm2835_get_mmc_clock(void)
+{
+	ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
+	int ret;
+
+	ret = bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
+	if (ret)
+		return ret;
+
+	BCM2835_MBOX_INIT_HDR(msg_clk);
+	BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
+	msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
+
+	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
+	if (ret) {
+		printf("bcm2835: Could not query eMMC clock rate\n");
+		return -EIO;
+	}
+
+	return msg_clk->get_clock_rate.body.resp.rate_hz;
+}
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index d0d9a9739d..2893f09bc5 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -468,23 +468,15 @@ int board_init(void)
 
 int board_mmc_init(bd_t *bis)
 {
-	ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
 	int ret;
 
 	bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
 
-	BCM2835_MBOX_INIT_HDR(msg_clk);
-	BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
-	msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
+	ret = bcm2835_get_mmc_clock();
+	if (ret)
+		return ret;
 
-	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
-	if (ret) {
-		printf("bcm2835: Could not query eMMC clock rate\n");
-		return -1;
-	}
-
-	return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
-				  msg_clk->get_clock_rate.body.resp.rate_hz);
+	return bcm2835_sdhci_init(BCM2835_SDHCI_BASE, ret);
 }
 
 int ft_board_setup(void *blob, bd_t *bd)
-- 
2.12.2.564.g063fe858b8-goog

  parent reply	other threads:[~2017-04-01 18:05 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-01 18:05 [U-Boot] [PATCH v5 00/19] arm: rpi: Enable USB, Ethernet, MMC, Video driver model on Raspberry Pi Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 01/19] net: smsc95xx: Correct free_pkt() implementation Simon Glass
2017-04-02 17:46   ` Joe Hershberger
2017-04-01 18:05 ` [U-Boot] [PATCH v5 02/19] usb: dwc2: Use separate input and output buffers Simon Glass
2017-04-01 20:15   ` Marek Vasut
2017-04-01 23:40     ` Simon Glass
2017-04-02  3:01       ` Marek Vasut
2017-04-02 13:10         ` Stefan Bruens
2017-04-02 15:43           ` Simon Glass
2017-04-02 21:34             ` Stefan Bruens
2017-04-02 23:23               ` Simon Glass
2017-04-03 14:26                 ` Brüns, Stefan
2017-04-03 15:38                   ` Simon Glass
2017-04-03 18:18                     ` Brüns, Stefan
2017-04-03 18:24                       ` Brüns, Stefan
2017-04-03 20:10                         ` Simon Glass
2017-04-03 20:10                       ` Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 03/19] dm: mmc: Set up the MMC device when controller is probed Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 04/19] dm: video: Correct line clearing code Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 05/19] string: Use memcpy() within memmove() when we can Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 06/19] arm: rpi: Drop the GPIO device addresses Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 07/19] arm: rpi: Drop CONFIG_CONS_INDEX Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 08/19] dm: arm: rpi: Move to driver model for USB Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 09/19] dm: arm: rpi: Use driver model for Ethernet Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 10/19] arm: rpi: Add a file to handle messages Simon Glass
2017-04-01 18:05 ` Simon Glass [this message]
2017-04-01 18:05 ` [U-Boot] [PATCH v5 12/19] dm: mmc: rpi: Convert Raspberry Pi to driver model for MMC Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 13/19] dm: arm: rpi: Drop CONFIG_OF_EMBED Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 14/19] video: arm: rpi: Move the video query out of the driver Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 15/19] video: arm: rpi: Move the video settings " Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 16/19] dm: video: Refactor lcd_simplefb to prepare for driver model Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 17/19] dm: video: Add driver-model support to lcd_simplefb Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 18/19] dm: video: arm: rpi: Convert to use driver model for video Simon Glass
2017-04-01 18:05 ` [U-Boot] [PATCH v5 19/19] arm: rpi: Add a TODO to move all messages into the msg handler Simon Glass
2017-04-01 19:05 ` [U-Boot] [PATCH v5 00/19] arm: rpi: Enable USB, Ethernet, MMC, Video driver model on Raspberry Pi Stefan Bruens

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=20170401180556.2416-12-sjg@chromium.org \
    --to=sjg@chromium.org \
    --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.