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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 02/12] mci: sdhci: Add and use SDHCI_CAPABILITIES_1 defines
Date: Mon,  7 Jun 2021 12:44:01 +0200
Message-ID: <20210607104411.23071-3-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20210607104411.23071-1-s.hauer@pengutronix.de>

Linux has defines for the SDHCI_CAPABILITIES_1 register at offset 0x44.
Add these and convert the only user so far to use the defines.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/mci/atmel-sdhci-common.c |  6 ++----
 drivers/mci/sdhci.h              | 15 ++++++++++++++-
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/mci/atmel-sdhci-common.c b/drivers/mci/atmel-sdhci-common.c
index 92013feb95..b391775b00 100644
--- a/drivers/mci/atmel-sdhci-common.c
+++ b/drivers/mci/atmel-sdhci-common.c
@@ -24,8 +24,6 @@
 
 #include "atmel-sdhci.h"
 
-#define AT91_SDHCI_CA1R		0x44	/* Capabilities 1 Register */
-
 #define AT91_SDHCI_MC1R		0x204
 #define		AT91_SDHCI_MC1_FCD		BIT(7)
 #define AT91_SDHCI_CALCR	0x240
@@ -237,9 +235,9 @@ static int at91_sdhci_set_clock(struct at91_sdhci *host, unsigned clock)
 	if (clock == 0)
 		return 0;
 
-	caps = sdhci_read32(sdhci, AT91_SDHCI_CA1R);
+	caps = sdhci_read32(sdhci, SDHCI_CAPABILITIES_1);
 
-	caps_clk_mult = (caps & SDHCI_CLOCK_MUL_MASK) >> SDHCI_CLOCK_MUL_SHIFT;
+	caps_clk_mult = FIELD_GET(SDHCI_CLOCK_MUL_MASK, caps);
 
 	if (caps_clk_mult) {
 		for (clk_div = 1; clk_div <= 1024; clk_div++) {
diff --git a/drivers/mci/sdhci.h b/drivers/mci/sdhci.h
index 9bd9749dd6..fd63cd84de 100644
--- a/drivers/mci/sdhci.h
+++ b/drivers/mci/sdhci.h
@@ -123,7 +123,20 @@
 #define  SDHCI_CAN_64BIT_V4			0x08000000
 #define  SDHCI_CAN_64BIT			0x10000000
 
-#define  SDHCI_CLOCK_MUL_MASK	0x00FF0000
+#define SDHCI_CAPABILITIES_1			0x44
+#define  SDHCI_SUPPORT_SDR50			0x00000001
+#define  SDHCI_SUPPORT_SDR104			0x00000002
+#define  SDHCI_SUPPORT_DDR50			0x00000004
+#define  SDHCI_DRIVER_TYPE_A			0x00000010
+#define  SDHCI_DRIVER_TYPE_C			0x00000020
+#define  SDHCI_DRIVER_TYPE_D			0x00000040
+#define  SDHCI_RETUNING_TIMER_COUNT_MASK	GENMASK(11, 8)
+#define  SDHCI_USE_SDR50_TUNING			0x00002000
+#define  SDHCI_RETUNING_MODE_MASK		GENMASK(15, 14)
+#define  SDHCI_CLOCK_MUL_MASK			GENMASK(23, 16)
+#define  SDHCI_CAN_DO_ADMA3			0x08000000
+#define  SDHCI_SUPPORT_HS400			0x80000000 /* Non-standard */
+
 #define  SDHCI_CLOCK_MUL_SHIFT	16
 
 #define SDHCI_SPEC_200_MAX_CLK_DIVIDER	256
-- 
2.29.2


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  parent reply	other threads:[~2021-06-07 10:51 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-07 10:43 [PATCH 00/12] SDHCI updates Sascha Hauer
2021-06-07 10:44 ` [PATCH 01/12] mci: sdhci: straighten capabilities register Sascha Hauer
2021-06-07 10:44 ` Sascha Hauer [this message]
2021-06-07 10:44 ` [PATCH 03/12] mci: sdhci: Use SDHCI_MAX_DIV_SPEC_200 define Sascha Hauer
2021-06-07 10:44 ` [PATCH 04/12] mci: sdhci: port over some common functions from Linux Sascha Hauer
2021-06-07 10:44 ` [PATCH 05/12] mci: sdhci: imx: Use sdhci_setup_host() Sascha Hauer
2021-06-07 10:44 ` [PATCH 06/12] mci: sdhci: Use Linux defines for SDHCI_HOST_CONTROL register Sascha Hauer
2021-06-07 10:44 ` [PATCH 07/12] mci: sdhci: arasan: Use sdhci_setup_host() Sascha Hauer
2021-06-07 10:44 ` [PATCH 08/12] mci: sdhci: arasan: Use sdhci_set_bus_width() Sascha Hauer
2021-06-07 10:44 ` [PATCH 09/12] mci: sdhci: Use Linux defines for SDHCI_CLOCK_CONTROL register Sascha Hauer
2021-06-07 10:44 ` [PATCH 10/12] mci: sdhci: arasan: Use sdhci_set_clock() Sascha Hauer
2021-06-07 10:44 ` [PATCH 11/12] mci: sdhci: Get rid of many register ops Sascha Hauer
2021-06-07 10:44 ` [PATCH 12/12] mci: Add support for Rockchip variant of the dwcmshc Sascha Hauer

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