Module Name: src
Committed By: jmcneill
Date: Sun Oct 29 15:00:00 UTC 2017
Modified Files:
src/sys/arch/arm/sunxi: sunxi_twi.c
src/sys/arch/evbarm/conf: SUNXI
Log Message:
sunxi_twi: provide custom read/write reg callbacks and remove the
GTTWSI_ALLWINNER option from the kernel config
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/arm/sunxi/sunxi_twi.c
cvs rdiff -u -r1.48 -r1.49 src/sys/arch/evbarm/conf/SUNXI
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/sunxi/sunxi_twi.c
diff -u src/sys/arch/arm/sunxi/sunxi_twi.c:1.5 src/sys/arch/arm/sunxi/sunxi_twi.c:1.6
--- src/sys/arch/arm/sunxi/sunxi_twi.c:1.5 Sat Oct 7 20:17:38 2017
+++ src/sys/arch/arm/sunxi/sunxi_twi.c Sun Oct 29 15:00:00 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_twi.c,v 1.5 2017/10/07 20:17:38 jmcneill Exp $ */
+/* $NetBSD: sunxi_twi.c,v 1.6 2017/10/29 15:00:00 jmcneill Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <[email protected]>
@@ -26,9 +26,14 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#include "opt_gttwsi.h"
+#ifdef GTTWSI_ALLWINNER
+# error Do not define GTTWSI_ALLWINNER when using this driver
+#endif
+
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_twi.c,v 1.5 2017/10/07 20:17:38 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_twi.c,v 1.6 2017/10/29 15:00:00 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -39,6 +44,7 @@ __KERNEL_RCSID(0, "$NetBSD: sunxi_twi.c,
#include <dev/i2c/i2cvar.h>
#include <dev/i2c/gttwsivar.h>
+#include <dev/i2c/gttwsireg.h>
#include <dev/fdt/fdtvar.h>
@@ -46,6 +52,16 @@ __KERNEL_RCSID(0, "$NetBSD: sunxi_twi.c,
#define TWI_CCR_CLK_M __BITS(6,3)
#define TWI_CCR_CLK_N __BITS(2,0)
+static uint8_t sunxi_twi_regmap[] = {
+ [TWSI_SLAVEADDR] = 0x00,
+ [TWSI_EXTEND_SLAVEADDR] = 0x04,
+ [TWSI_DATA] = 0x08,
+ [TWSI_CONTROL] = 0x0c,
+ [TWSI_STATUS] = 0x10,
+ [TWSI_BAUDRATE] = 0x14,
+ [TWSI_SOFTRESET] = 0x18,
+};
+
static int sunxi_twi_match(device_t, cfdata_t, void *);
static void sunxi_twi_attach(device_t, device_t, void *);
@@ -82,6 +98,18 @@ const struct fdtbus_i2c_controller_func
.get_tag = sunxi_twi_get_tag,
};
+static uint32_t
+sunxi_twi_reg_read(struct gttwsi_softc *sc, uint32_t reg)
+{
+ return bus_space_read_4(sc->sc_bust, sc->sc_bush, sunxi_twi_regmap[reg]);
+}
+
+static void
+sunxi_twi_reg_write(struct gttwsi_softc *sc, uint32_t reg, uint32_t val)
+{
+ bus_space_write_4(sc->sc_bust, sc->sc_bush, sunxi_twi_regmap[reg], val);
+}
+
static int
sunxi_twi_match(device_t parent, cfdata_t cf, void *aux)
{
@@ -149,6 +177,9 @@ sunxi_twi_attach(device_t parent, device
__SHIFTIN(m, TWI_CCR_CLK_M);
bus_space_write_4(bst, bsh, TWI_CCR_REG, ccr);
+ sc->sc_reg_read = sunxi_twi_reg_read;
+ sc->sc_reg_write = sunxi_twi_reg_write;
+
gttwsi_attach_subr(self, bst, bsh);
ih = fdtbus_intr_establish(phandle, 0, IPL_VM, 0, gttwsi_intr, sc);
Index: src/sys/arch/evbarm/conf/SUNXI
diff -u src/sys/arch/evbarm/conf/SUNXI:1.48 src/sys/arch/evbarm/conf/SUNXI:1.49
--- src/sys/arch/evbarm/conf/SUNXI:1.48 Sun Oct 29 14:07:11 2017
+++ src/sys/arch/evbarm/conf/SUNXI Sun Oct 29 15:00:00 2017
@@ -1,5 +1,5 @@
#
-# $NetBSD: SUNXI,v 1.48 2017/10/29 14:07:11 jmcneill Exp $
+# $NetBSD: SUNXI,v 1.49 2017/10/29 15:00:00 jmcneill Exp $
#
# Allwinner sunxi family
#
@@ -170,7 +170,6 @@ com* at fdt? # UART
# I2C
sunxitwi* at fdt? # TWI
-options GTTWSI_ALLWINNER # XXX this should be a driver flag
sunxirsb* at fdt? # P2WI/RSB
iic* at i2cbus?
tcakp* at iic? # TI TCA8418 Keypad Scan IC
