[PATCH v6 069/102] spi: ich: Add mmio_base to struct ich_spi_platdata

[Simon Glass]

It is useful to store the mmio base in platdata. It reduces the amount of
casting needed. Update the code and move the struct to the C file at the
same time, as we will need to use with of-platdata.

Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---

Changes in v6: None
Changes in v5: None
Changes in v4:
- Use priv->pch instead of dev->parent

Changes in v3: None
Changes in v2: None

 drivers/spi/ich.c | 27 +++++++++++++--------------
 drivers/spi/ich.h |  5 -----
 2 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index b83dfb854d..08c37ca4ab 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -27,6 +27,12 @@
 #define debug_trace(x, args...)
 #endif
 
+struct ich_spi_platdata {
+	enum ich_version ich_version;	/* Controller version, 7 or 9 */
+	bool lockdown;			/* lock down controller settings? */
+	ulong mmio_base;		/* Base of MMIO registers */
+};
+
 static u8 ich_readb(struct ich_spi_priv *priv, int reg)
 {
 	u8 value = readb(priv->base + reg);
@@ -467,16 +473,9 @@ static int ich_init_controller(struct udevice *dev,
 			       struct ich_spi_platdata *plat,
 			       struct ich_spi_priv *ctlr)
 {
-	ulong sbase_addr;
-	void *sbase;
-
-	/* SBASE is similar */
-	pch_get_spi_base(dev->parent, &sbase_addr);
-	sbase = (void *)sbase_addr;
-	debug("%s: sbase=%p\n", __func__, sbase);
-
+	ctlr->base = (void *)plat->mmio_base;
 	if (plat->ich_version == ICHV_7) {
-		struct ich7_spi_regs *ich7_spi = sbase;
+		struct ich7_spi_regs *ich7_spi = ctlr->base;
 
 		ctlr->opmenu = offsetof(struct ich7_spi_regs, opmenu);
 		ctlr->menubytes = sizeof(ich7_spi->opmenu);
@@ -488,9 +487,8 @@ static int ich_init_controller(struct udevice *dev,
 		ctlr->control = offsetof(struct ich7_spi_regs, spic);
 		ctlr->bbar = offsetof(struct ich7_spi_regs, bbar);
 		ctlr->preop = offsetof(struct ich7_spi_regs, preop);
-		ctlr->base = ich7_spi;
 	} else if (plat->ich_version == ICHV_9) {
-		struct ich9_spi_regs *ich9_spi = sbase;
+		struct ich9_spi_regs *ich9_spi = ctlr->base;
 
 		ctlr->opmenu = offsetof(struct ich9_spi_regs, opmenu);
 		ctlr->menubytes = sizeof(ich9_spi->opmenu);
@@ -505,7 +503,6 @@ static int ich_init_controller(struct udevice *dev,
 		ctlr->preop = offsetof(struct ich9_spi_regs, preop);
 		ctlr->bcr = offsetof(struct ich9_spi_regs, bcr);
 		ctlr->pr = &ich9_spi->pr[0];
-		ctlr->base = ich9_spi;
 	} else {
 		debug("ICH SPI: Unrecognised ICH version %d\n",
 		      plat->ich_version);
@@ -516,8 +513,8 @@ static int ich_init_controller(struct udevice *dev,
 	ctlr->max_speed = 20000000;
 	if (plat->ich_version == ICHV_9 && ich9_can_do_33mhz(dev))
 		ctlr->max_speed = 33000000;
-	debug("ICH SPI: Version ID %d detected at %p, speed %ld\n",
-	      plat->ich_version, ctlr->base, ctlr->max_speed);
+	debug("ICH SPI: Version ID %d detected at %lx, speed %ld\n",
+	      plat->ich_version, plat->mmio_base, ctlr->max_speed);
 
 	ich_set_bbar(ctlr, 0);
 
@@ -605,6 +602,8 @@ static int ich_spi_ofdata_to_platdata(struct udevice *dev)
 	plat->ich_version = dev_get_driver_data(dev);
 	plat->lockdown = dev_read_bool(dev, "intel,spi-lock-down");
 
+	pch_get_spi_base(priv->pch, &plat->mmio_base);
+
 	return 0;
 }
 
diff --git a/drivers/spi/ich.h b/drivers/spi/ich.h
index 77057878a5..623b2c547a 100644
--- a/drivers/spi/ich.h
+++ b/drivers/spi/ich.h
@@ -168,11 +168,6 @@ enum ich_version {
 	ICHV_9,
 };
 
-struct ich_spi_platdata {
-	enum ich_version ich_version;	/* Controller version, 7 or 9 */
-	bool lockdown;			/* lock down controller settings? */
-};
-
 struct ich_spi_priv {
 	int opmenu;
 	int menubytes;
-- 
2.24.0.393.g34dc348eaf-goog