Module Name: src
Committed By: jmcneill
Date: Tue Jun 20 13:21:45 UTC 2017
Modified Files:
src/sys/arch/arm/samsung: files.exynos
src/sys/arch/evbarm/conf: EXYNOS
Added Files:
src/sys/arch/arm/samsung: exynos5410_clock.c
Log Message:
Add Exynos 5410 clock controller driver.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/samsung/exynos5410_clock.c
cvs rdiff -u -r1.23 -r1.24 src/sys/arch/arm/samsung/files.exynos
cvs rdiff -u -r1.20 -r1.21 src/sys/arch/evbarm/conf/EXYNOS
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/samsung/files.exynos
diff -u src/sys/arch/arm/samsung/files.exynos:1.23 src/sys/arch/arm/samsung/files.exynos:1.24
--- src/sys/arch/arm/samsung/files.exynos:1.23 Sun Jun 11 16:21:41 2017
+++ src/sys/arch/arm/samsung/files.exynos Tue Jun 20 13:21:45 2017
@@ -1,4 +1,4 @@
-# $NetBSD: files.exynos,v 1.23 2017/06/11 16:21:41 jmcneill Exp $
+# $NetBSD: files.exynos,v 1.24 2017/06/20 13:21:45 jmcneill Exp $
#
# Configuration info for Samsung Exynos SoC ARM Peripherals
#
@@ -120,3 +120,7 @@ file arch/arm/samsung/exynos_i2c.c exyn
device exy5422clk: clk
attach exy5422clk at fdt with exynos5422_clock
file arch/arm/samsung/exynos5422_clock.c exynos5422_clock
+
+device exy5410clk: clk
+attach exy5410clk at fdt with exynos5410_clock
+file arch/arm/samsung/exynos5410_clock.c exynos5410_clock
Index: src/sys/arch/evbarm/conf/EXYNOS
diff -u src/sys/arch/evbarm/conf/EXYNOS:1.20 src/sys/arch/evbarm/conf/EXYNOS:1.21
--- src/sys/arch/evbarm/conf/EXYNOS:1.20 Tue Jun 20 10:37:01 2017
+++ src/sys/arch/evbarm/conf/EXYNOS Tue Jun 20 13:21:45 2017
@@ -1,5 +1,5 @@
#
-# $NetBSD: EXYNOS,v 1.20 2017/06/20 10:37:01 skrll Exp $
+# $NetBSD: EXYNOS,v 1.21 2017/06/20 13:21:45 jmcneill Exp $
#
# Samsung Exynos SoC kernel
#
@@ -57,6 +57,7 @@ gic* at fdt? pass 1 # GIC
armgic0 at gic?
# Clock controller
+exy5410clk* at fdt? pass 3 # Exynos5410 clock controller
exy5422clk* at fdt? pass 3 # Exynos5422 clock controller
# GPIO controller
Added files:
Index: src/sys/arch/arm/samsung/exynos5410_clock.c
diff -u /dev/null src/sys/arch/arm/samsung/exynos5410_clock.c:1.1
--- /dev/null Tue Jun 20 13:21:45 2017
+++ src/sys/arch/arm/samsung/exynos5410_clock.c Tue Jun 20 13:21:45 2017
@@ -0,0 +1,864 @@
+/* $NetBSD: exynos5410_clock.c,v 1.1 2017/06/20 13:21:45 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2015-2017 Jared McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: exynos5410_clock.c,v 1.1 2017/06/20 13:21:45 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/atomic.h>
+
+#include <dev/clk/clk_backend.h>
+
+#include <arm/samsung/exynos_reg.h>
+#include <arm/samsung/exynos_var.h>
+#include <arm/samsung/exynos_clock.h>
+
+#include <dev/fdt/fdtvar.h>
+
+static struct clk *exynos5410_clock_decode(device_t, const void *, size_t);
+
+static const struct fdtbus_clock_controller_func exynos5410_car_fdtclock_funcs = {
+ .decode = exynos5410_clock_decode
+};
+
+/* DT clock ID to clock name mappings */
+static struct exynos5410_clock_id {
+ u_int id;
+ const char *name;
+} exynos5410_clock_ids[] = {
+ /* core clocks */
+ { 1, "fin_pll" },
+ { 2, "fout_apll" },
+ { 3, "fout_cpll" },
+ { 4, "fout_dpll" },
+ { 5, "fout_mpll" },
+ { 6, "fout_kpll" },
+ { 7, "fout_epll" },
+
+ /* gate for special clocks (sclk) */
+ { 128, "sclk_uart0" },
+ { 129, "sclk_uart1" },
+ { 130, "sclk_uart2" },
+ { 131, "sclk_uart3" },
+ { 132, "sclk_mmc0" },
+ { 133, "sclk_mmc1" },
+ { 134, "sclk_mmc2" },
+ { 150, "sclk_usbd300" },
+ { 151, "sclk_usbd301" },
+ { 152, "sclk_usbphy300" },
+ { 153, "sclk_usbphy301" },
+ { 155, "sclk_pwm" },
+
+ /* gate clocks */
+ { 257, "uart0" },
+ { 258, "uart1" },
+ { 259, "uart2" },
+ { 260, "uart3" },
+ { 261, "i2c0" },
+ { 262, "i2c1" },
+ { 263, "i2c2" },
+ { 264, "i2c3" },
+ { 265, "usi0" },
+ { 266, "usi1" },
+ { 267, "usi2" },
+ { 268, "usi3" },
+ { 279, "pwm" },
+ { 315, "mct" },
+ { 316, "wdt" },
+ { 317, "rtc" },
+ { 318, "tmu" },
+ { 351, "mmc0" },
+ { 352, "mmc1" },
+ { 353, "mmc2" },
+ { 362, "pdma0" },
+ { 363, "pdma1" },
+ { 365, "usbh20" },
+ { 366, "usbd300" },
+ { 367, "usbd301" },
+ { 471, "sss" },
+};
+
+static struct clk *exynos5410_clock_get(void *, const char *);
+static void exynos5410_clock_put(void *, struct clk *);
+static u_int exynos5410_clock_get_rate(void *, struct clk *);
+static int exynos5410_clock_set_rate(void *, struct clk *, u_int);
+static int exynos5410_clock_enable(void *, struct clk *);
+static int exynos5410_clock_disable(void *, struct clk *);
+static int exynos5410_clock_set_parent(void *, struct clk *, struct clk *);
+static struct clk *exynos5410_clock_get_parent(void *, struct clk *);
+
+static const struct clk_funcs exynos5410_clock_funcs = {
+ .get = exynos5410_clock_get,
+ .put = exynos5410_clock_put,
+ .get_rate = exynos5410_clock_get_rate,
+ .set_rate = exynos5410_clock_set_rate,
+ .enable = exynos5410_clock_enable,
+ .disable = exynos5410_clock_disable,
+ .set_parent = exynos5410_clock_set_parent,
+ .get_parent = exynos5410_clock_get_parent,
+};
+
+#define CLK_FIXED(_name, _rate) { \
+ .base = { .name = (_name) }, .type = EXYNOS_CLK_FIXED, \
+ .u = { .fixed = { .rate = (_rate) } } \
+}
+
+#define CLK_PLL(_name, _parent, _lock, _con0) { \
+ .base = { .name = (_name) }, .type = EXYNOS_CLK_PLL, \
+ .parent = (_parent), \
+ .u = { \
+ .pll = { \
+ .lock_reg = (_lock), \
+ .con0_reg = (_con0), \
+ } \
+ } \
+}
+
+#define CLK_MUXF(_name, _alias, _reg, _bits, _f, _p) { \
+ .base = { .name = (_name), .flags = (_f) }, \
+ .type = EXYNOS_CLK_MUX, \
+ .alias = (_alias), \
+ .u = { \
+ .mux = { \
+ .nparents = __arraycount(_p), \
+ .parents = (_p), \
+ .reg = (_reg), \
+ .bits = (_bits) \
+ } \
+ } \
+}
+
+#define CLK_MUXA(_name, _alias, _reg, _bits, _p) \
+ CLK_MUXF(_name, _alias, _reg, _bits, 0, _p)
+
+#define CLK_MUX(_name, _reg, _bits, _p) \
+ CLK_MUXF(_name, NULL, _reg, _bits, 0, _p)
+
+#define CLK_DIVF(_name, _parent, _reg, _bits, _f) { \
+ .base = { .name = (_name), .flags = (_f) }, \
+ .type = EXYNOS_CLK_DIV, \
+ .parent = (_parent), \
+ .u = { \
+ .div = { \
+ .reg = (_reg), \
+ .bits = (_bits) \
+ } \
+ } \
+}
+
+#define CLK_DIV(_name, _parent, _reg, _bits) \
+ CLK_DIVF(_name, _parent, _reg, _bits, 0)
+
+#define CLK_GATE(_name, _parent, _reg, _bits, _f) { \
+ .base = { .name = (_name), .flags = (_f) }, \
+ .type = EXYNOS_CLK_GATE, \
+ .parent = (_parent), \
+ .u = { \
+ .gate = { \
+ .reg = (_reg), \
+ .bits = (_bits) \
+ } \
+ } \
+}
+
+#define EXYNOS5410_APLL_LOCK 0x00000
+#define EXYNOS5410_APLL_CON0 0x00100
+#define EXYNOS5410_MPLL_LOCK 0x04000
+#define EXYNOS5410_MPLL_CON0 0x04100
+#define EXYNOS5410_CPLL_LOCK 0x10020
+#define EXYNOS5410_EPLL_LOCK 0x10040
+#define EXYNOS5410_CPLL_CON0 0x10120
+#define EXYNOS5410_EPLL_CON0 0x10130
+#define EXYNOS5410_EPLL_CON1 0x10134
+#define EXYNOS5410_EPLL_CON2 0x10138
+#define EXYNOS5410_BPLL_LOCK 0x20010
+#define EXYNOS5410_BPLL_CON0 0x20110
+#define EXYNOS5410_KPLL_LOCK 0x28000
+#define EXYNOS5410_KPLL_CON0 0x28100
+
+#define EXYNOS5410_SRC_CPU 0x00200
+#define EXYNOS5410_SRC_CPERI1 0x04204
+#define EXYNOS5410_SRC_TOP0 0x10210
+#define EXYNOS5410_SRC_TOP1 0x10214
+#define EXYNOS5410_SRC_TOP2 0x10218
+#define EXYNOS5410_SRC_FSYS 0x10244
+#define EXYNOS5410_SRC_PERIC0 0x10250
+#define EXYNOS5410_SRC_MASK_FSYS 0x10340
+#define EXYNOS5410_SRC_MASK_PERIC0 0x10350
+#define EXYNOS5410_SRC_CDREX 0x20200
+#define EXYNOS5410_SRC_KFC 0x28200
+
+#define EXYNOS5410_DIV_CPU0 0x00500
+#define EXYNOS5410_DIV_TOP0 0x10510
+#define EXYNOS5410_DIV_TOP1 0x10514
+#define EXYNOS5410_DIV_FSYS0 0x10548
+#define EXYNOS5410_DIV_FSYS1 0x1054c
+#define EXYNOS5410_DIV_FSYS2 0x10550
+#define EXYNOS5410_DIV_PERIC0 0x10558
+#define EXYNOS5410_DIV_PERIC3 0x10564
+#define EXYNOS5410_DIV_KFC0 0x28500
+
+#define EXYNOS5410_GATE_IP_G2D 0x08800
+#define EXYNOS5410_GATE_BUS_FSYS0 0x10740
+#define EXYNOS5410_GATE_TOP_SCLK_FSYS 0x10840
+#define EXYNOS5410_GATE_TOP_SCLK_PERIC 0x10850
+#define EXYNOS5410_GATE_IP_FSYS 0x10944
+#define EXYNOS5410_GATE_IP_PERIC 0x10950
+#define EXYNOS5410_GATE_IP_PERIS 0x10960
+
+static const char *mout_apll_p[] = { "fin_pll", "fout_apll" };
+static const char *mout_bpll_p[] = { "fin_pll", "fout_bpll" };
+static const char *mout_cpll_p[] = { "fin_pll", "fout_cpll" };
+static const char *mout_epll_p[] = { "fin_pll", "fout_epll" };
+static const char *mout_mpll_p[] = { "fin_pll", "fout_mpll" };
+static const char *mout_kpll_p[] = { "fin_pll", "fout_kpll" };
+
+static const char *mout_cpu_p[] = { "mout_apll", "sclk_mpll" };
+static const char *mout_kfc_p[] = { "mout_kpll", "sclk_mpll" };
+
+static const char *mout_mpll_user_p[] = { "fin_pll", "sclk_mpll" };
+static const char *mout_bpll_user_p[] = { "fin_pll", "sclk_bpll" };
+static const char *mout_mpll_bpll_p[] =
+ { "sclk_mpll_muxed", "sclk_bpll_muxed" };
+static const char *mout_sclk_mpll_bpll_p[] = { "sclk_mpll_bpll", "fin_pll" };
+
+static const char *mout_group2_p[] =
+ { "fin_pll", "fin_pll", "none", "none", "none", "none",
+ "sclk_mpll_bpll", "none", "none", "sclk_cpll" };
+
+static struct exynos_clk exynos5410_clocks[] = {
+ CLK_FIXED("fin_pll", EXYNOS_F_IN_FREQ),
+
+ CLK_PLL("fout_apll", "fin_pll", EXYNOS5410_APLL_LOCK,
+ EXYNOS5410_APLL_CON0),
+ CLK_PLL("fout_bpll", "fin_pll", EXYNOS5410_BPLL_LOCK,
+ EXYNOS5410_BPLL_CON0),
+ CLK_PLL("fout_cpll", "fin_pll", EXYNOS5410_CPLL_LOCK,
+ EXYNOS5410_CPLL_CON0),
+ CLK_PLL("fout_epll", "fin_pll", EXYNOS5410_EPLL_LOCK,
+ EXYNOS5410_EPLL_CON0),
+ CLK_PLL("fout_mpll", "fin_pll", EXYNOS5410_MPLL_LOCK,
+ EXYNOS5410_MPLL_CON0),
+ CLK_PLL("fout_kpll", "fin_pll", EXYNOS5410_KPLL_LOCK,
+ EXYNOS5410_KPLL_CON0),
+
+ CLK_MUX("mout_apll", EXYNOS5410_SRC_CPU, __BIT(0), mout_apll_p),
+ CLK_MUX("mout_cpu", EXYNOS5410_SRC_CPU, __BIT(16), mout_cpu_p),
+ CLK_MUX("mout_kpll", EXYNOS5410_SRC_KFC, __BIT(0), mout_kpll_p),
+ CLK_MUX("mout_kfc", EXYNOS5410_SRC_KFC, __BIT(16), mout_kfc_p),
+
+ CLK_MUX("sclk_mpll", EXYNOS5410_SRC_CPERI1, __BIT(8), mout_mpll_p),
+ CLK_MUX("sclk_mpll_muxed", EXYNOS5410_SRC_TOP2, __BIT(20), mout_mpll_user_p),
+ CLK_MUX("sclk_bpll", EXYNOS5410_SRC_CDREX, __BIT(0), mout_bpll_p),
+ CLK_MUX("sclk_bpll_muxed", EXYNOS5410_SRC_TOP2, __BIT(24), mout_bpll_user_p),
+ CLK_MUX("sclk_epll", EXYNOS5410_SRC_TOP2, __BIT(12), mout_epll_p),
+ CLK_MUX("sclk_cpll", EXYNOS5410_SRC_TOP2, __BIT(8), mout_cpll_p),
+ CLK_MUX("sclk_mpll_bpll", EXYNOS5410_SRC_TOP1, __BIT(20), mout_mpll_bpll_p),
+
+ CLK_MUX("mout_mmc0", EXYNOS5410_SRC_FSYS, __BITS(3,0), mout_group2_p),
+ CLK_MUX("mout_mmc1", EXYNOS5410_SRC_FSYS, __BITS(7,4), mout_group2_p),
+ CLK_MUX("mout_mmc2", EXYNOS5410_SRC_FSYS, __BITS(11,8), mout_group2_p),
+ CLK_MUX("mout_usbd300", EXYNOS5410_SRC_FSYS, __BIT(28), mout_sclk_mpll_bpll_p),
+ CLK_MUX("mout_usbd301", EXYNOS5410_SRC_FSYS, __BIT(29), mout_sclk_mpll_bpll_p),
+ CLK_MUX("mout_uart0", EXYNOS5410_SRC_PERIC0, __BITS(3,0), mout_group2_p),
+ CLK_MUX("mout_uart1", EXYNOS5410_SRC_PERIC0, __BITS(7,4), mout_group2_p),
+ CLK_MUX("mout_uart2", EXYNOS5410_SRC_PERIC0, __BITS(11,8), mout_group2_p),
+ CLK_MUX("mout_uart3", EXYNOS5410_SRC_PERIC0, __BITS(15,12), mout_group2_p),
+ CLK_MUX("mout_pwm", EXYNOS5410_SRC_PERIC0, __BITS(27,24), mout_group2_p),
+ CLK_MUX("mout_aclk200", EXYNOS5410_SRC_TOP0, __BIT(12), mout_mpll_bpll_p),
+ CLK_MUX("mout_aclk400", EXYNOS5410_SRC_TOP0, __BIT(20), mout_mpll_bpll_p),
+
+ CLK_DIV("div_arm", "mout_cpu", EXYNOS5410_DIV_CPU0, __BITS(2,0)),
+ CLK_DIV("div_arm2", "div_arm", EXYNOS5410_DIV_CPU0, __BITS(30,28)),
+
+ CLK_DIV("div_acp", "div_arm2", EXYNOS5410_DIV_CPU0, __BITS(10,8)),
+ CLK_DIV("div_cpud", "div_arm2", EXYNOS5410_DIV_CPU0, __BITS(6,4)),
+ CLK_DIV("div_atb", "div_arm2", EXYNOS5410_DIV_CPU0, __BITS(18,16)),
+ CLK_DIV("pclk_dbg", "div_arm2", EXYNOS5410_DIV_CPU0, __BITS(22,20)),
+
+ CLK_DIV("div_kfc", "mout_kfc", EXYNOS5410_DIV_KFC0, __BITS(2,0)),
+ CLK_DIV("div_aclk", "div_kfc", EXYNOS5410_DIV_KFC0, __BITS(6,4)),
+ CLK_DIV("div_pclk", "div_kfc", EXYNOS5410_DIV_KFC0, __BITS(22,20)),
+
+ CLK_DIV("aclk66_pre", "sclk_mpll_muxed", EXYNOS5410_DIV_TOP1, __BITS(26,24)),
+ CLK_DIV("aclk66", "aclk66_pre", EXYNOS5410_DIV_TOP0, __BITS(2,0)),
+
+ CLK_DIV("dout_usbphy300", "mout_usbd300", EXYNOS5410_DIV_FSYS0, __BITS(19,16)),
+ CLK_DIV("dout_usbphy301", "mout_usbd301", EXYNOS5410_DIV_FSYS0, __BITS(23,20)),
+ CLK_DIV("dout_usbd300", "mout_usbd300", EXYNOS5410_DIV_FSYS0, __BITS(27,24)),
+ CLK_DIV("dout_usbd301", "mout_usbd301", EXYNOS5410_DIV_FSYS0, __BITS(31,28)),
+
+ CLK_DIV("dout_mmc0", "mout_mmc0", EXYNOS5410_DIV_FSYS1, __BITS(3,0)),
+ CLK_DIV("dout_mmc1", "mout_mmc1", EXYNOS5410_DIV_FSYS1, __BITS(19,16)),
+ CLK_DIV("dout_mmc2", "mout_mmc2", EXYNOS5410_DIV_FSYS2, __BITS(3,0)),
+
+ CLK_DIVF("dout_mmc_pre0", "div_mmc0", EXYNOS5410_DIV_FSYS1, __BITS(15,8),
+ CLK_SET_RATE_PARENT),
+ CLK_DIVF("dout_mmc_pre1", "div_mmc1", EXYNOS5410_DIV_FSYS1, __BITS(31,24),
+ CLK_SET_RATE_PARENT),
+ CLK_DIVF("dout_mmc_pre2", "div_mmc2", EXYNOS5410_DIV_FSYS2, __BITS(15,8),
+ CLK_SET_RATE_PARENT),
+
+ CLK_DIV("div_uart0", "mout_uart0", EXYNOS5410_DIV_PERIC0, __BITS(3,0)),
+ CLK_DIV("div_uart1", "mout_uart1", EXYNOS5410_DIV_PERIC0, __BITS(7,4)),
+ CLK_DIV("div_uart2", "mout_uart2", EXYNOS5410_DIV_PERIC0, __BITS(11,8)),
+ CLK_DIV("div_uart3", "mout_uart3", EXYNOS5410_DIV_PERIC0, __BITS(15,12)),
+
+ CLK_DIV("dout_pwm", "mout_pwm", EXYNOS5410_DIV_PERIC3, __BITS(3,0)),
+
+ CLK_DIV("aclk200", "mout_aclk200", EXYNOS5410_DIV_TOP0, __BITS(14,12)),
+ CLK_DIV("aclk266", "sclk_mpll_muxed", EXYNOS5410_DIV_TOP0, __BITS(18,16)),
+ CLK_DIV("aclk400", "mout_aclk400", EXYNOS5410_DIV_TOP0, __BITS(26,24)),
+
+ CLK_GATE("sss", "aclk266", EXYNOS5410_GATE_IP_G2D, __BIT(2), 0),
+
+ CLK_GATE("mct", "aclk66", EXYNOS5410_GATE_IP_PERIS, __BIT(18), 0),
+ CLK_GATE("wdt", "aclk66", EXYNOS5410_GATE_IP_PERIS, __BIT(19), 0),
+ CLK_GATE("rtc", "aclk66", EXYNOS5410_GATE_IP_PERIS, __BIT(20), 0),
+ CLK_GATE("tmu", "aclk66", EXYNOS5410_GATE_IP_PERIS, __BIT(21), 0),
+
+ CLK_GATE("sclk_mmc0", "div_mmc_pre0", EXYNOS5410_SRC_MASK_FSYS,
+ __BIT(0), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_mmc1", "div_mmc_pre1", EXYNOS5410_SRC_MASK_FSYS,
+ __BIT(4), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_mmc2", "div_mmc_pre2", EXYNOS5410_SRC_MASK_FSYS,
+ __BIT(8), CLK_SET_RATE_PARENT),
+
+ CLK_GATE("mmc0", "aclk200", EXYNOS5410_GATE_BUS_FSYS0, __BIT(12), 0),
+ CLK_GATE("mmc1", "aclk200", EXYNOS5410_GATE_BUS_FSYS0, __BIT(13), 0),
+ CLK_GATE("mmc2", "aclk200", EXYNOS5410_GATE_BUS_FSYS0, __BIT(14), 0),
+ CLK_GATE("pdma1", "aclk200", EXYNOS5410_GATE_BUS_FSYS0, __BIT(2), 0),
+ CLK_GATE("pdma0", "aclk200", EXYNOS5410_GATE_BUS_FSYS0, __BIT(1), 0),
+
+ CLK_GATE("sclk_usbphy301", "dout_usbphy301", EXYNOS5410_GATE_TOP_SCLK_FSYS,
+ __BIT(7), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_usbphy300", "dout_usbphy300", EXYNOS5410_GATE_TOP_SCLK_FSYS,
+ __BIT(8), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_usbd301", "dout_usbd301", EXYNOS5410_GATE_TOP_SCLK_FSYS,
+ __BIT(9), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_usbd301", "dout_usbd301", EXYNOS5410_GATE_TOP_SCLK_FSYS,
+ __BIT(10), CLK_SET_RATE_PARENT),
+
+ CLK_GATE("sclk_pwm", "dout_pwm", EXYNOS5410_GATE_TOP_SCLK_PERIC,
+ __BIT(11), CLK_SET_RATE_PARENT),
+
+ CLK_GATE("uart0", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(0), 0),
+ CLK_GATE("uart1", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(1), 0),
+ CLK_GATE("uart2", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(2), 0),
+ CLK_GATE("uart3", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(3), 0),
+ CLK_GATE("i2c0", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(6), 0),
+ CLK_GATE("i2c1", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(7), 0),
+ CLK_GATE("i2c2", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(8), 0),
+ CLK_GATE("i2c3", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(9), 0),
+ CLK_GATE("usi0", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(10), 0),
+ CLK_GATE("usi1", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(11), 0),
+ CLK_GATE("usi2", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(12), 0),
+ CLK_GATE("usi3", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(13), 0),
+ CLK_GATE("pwm", "aclk66", EXYNOS5410_GATE_IP_PERIC, __BIT(24), 0),
+
+ CLK_GATE("sclk_uart0", "div_uart0", EXYNOS5410_SRC_MASK_PERIC0,
+ __BIT(0), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_uart1", "div_uart1", EXYNOS5410_SRC_MASK_PERIC0,
+ __BIT(4), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_uart2", "div_uart2", EXYNOS5410_SRC_MASK_PERIC0,
+ __BIT(8), CLK_SET_RATE_PARENT),
+ CLK_GATE("sclk_uart3", "div_uart3", EXYNOS5410_SRC_MASK_PERIC0,
+ __BIT(12), CLK_SET_RATE_PARENT),
+
+ CLK_GATE("usbh20", "aclk200", EXYNOS5410_GATE_IP_FSYS, __BIT(18), 0),
+ CLK_GATE("usbd301", "aclk200", EXYNOS5410_GATE_IP_FSYS, __BIT(19), 0),
+ CLK_GATE("usbd300", "aclk200", EXYNOS5410_GATE_IP_FSYS, __BIT(20), 0),
+};
+
+static int exynos5410_clock_match(device_t, cfdata_t, void *);
+static void exynos5410_clock_attach(device_t, device_t, void *);
+
+struct exynos5410_clock_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_bst;
+ bus_space_handle_t sc_bsh;
+
+ struct clk_domain sc_clkdom;
+};
+
+static void exynos5410_clock_print_header(void);
+static void exynos5410_clock_print(struct exynos5410_clock_softc *,
+ struct exynos_clk *);
+
+CFATTACH_DECL_NEW(exynos5410_clock, sizeof(struct exynos5410_clock_softc),
+ exynos5410_clock_match, exynos5410_clock_attach, NULL, NULL);
+
+#define CLOCK_READ(sc, reg) \
+ bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
+#define CLOCK_WRITE(sc, reg, val) \
+ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
+
+static int
+exynos5410_clock_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const char * const compatible[] = { "samsung,exynos5410-clock", NULL };
+ struct fdt_attach_args * const faa = aux;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+exynos5410_clock_attach(device_t parent, device_t self, void *aux)
+{
+ struct exynos5410_clock_softc * const sc = device_private(self);
+ struct fdt_attach_args * const faa = aux;
+ bus_addr_t addr;
+ bus_size_t size;
+ int error;
+
+ if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_bst = faa->faa_bst;
+
+ error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh);
+ if (error) {
+ aprint_error(": couldn't map %#llx: %d",
+ (uint64_t)addr, error);
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal(": Exynos5410 Clock Controller\n");
+
+ sc->sc_clkdom.funcs = &exynos5410_clock_funcs;
+ sc->sc_clkdom.priv = sc;
+ for (u_int n = 0; n < __arraycount(exynos5410_clocks); n++) {
+ exynos5410_clocks[n].base.domain = &sc->sc_clkdom;
+ }
+
+ fdtbus_register_clock_controller(self, faa->faa_phandle,
+ &exynos5410_car_fdtclock_funcs);
+
+ exynos5410_clock_print_header();
+ for (u_int n = 0; n < __arraycount(exynos5410_clocks); n++) {
+ exynos5410_clock_print(sc, &exynos5410_clocks[n]);
+ }
+}
+
+static struct exynos_clk *
+exynos5410_clock_find(const char *name)
+{
+ u_int n;
+
+ for (n = 0; n < __arraycount(exynos5410_clocks); n++) {
+ if (strcmp(exynos5410_clocks[n].base.name, name) == 0) {
+ return &exynos5410_clocks[n];
+ }
+ }
+
+ return NULL;
+}
+
+static struct exynos_clk *
+exynos5410_clock_find_by_id(u_int clock_id)
+{
+ u_int n;
+
+ for (n = 0; n < __arraycount(exynos5410_clock_ids); n++) {
+ if (exynos5410_clock_ids[n].id == clock_id) {
+ const char *name = exynos5410_clock_ids[n].name;
+ return exynos5410_clock_find(name);
+ }
+ }
+
+ return NULL;
+}
+
+static void
+exynos5410_clock_print_header(void)
+{
+ printf(" %-10s %2s %-10s %-5s %10s\n",
+ "clock", "", "parent", "type", "rate");
+ printf(" %-10s %2s %-10s %-5s %10s\n",
+ "=====", "", "======", "====", "====");
+}
+
+static void
+exynos5410_clock_print(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk)
+{
+ struct exynos_clk *eclk_parent;
+ struct clk *clk_parent;
+ const char *type = "?";
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ type = "fixed";
+ break;
+ case EXYNOS_CLK_PLL:
+ type = "pll";
+ break;
+ case EXYNOS_CLK_MUX:
+ type = "mux";
+ break;
+ case EXYNOS_CLK_DIV:
+ type = "div";
+ break;
+ case EXYNOS_CLK_GATE:
+ type = "gate";
+ break;
+ }
+
+ clk_parent = exynos5410_clock_get_parent(sc, &eclk->base);
+ eclk_parent = (struct exynos_clk *)clk_parent;
+
+ printf(" %-10s %2s %-10s %-5s %10d Hz\n",
+ eclk->base.name,
+ eclk_parent ? "<-" : "",
+ eclk_parent ? eclk_parent->base.name : "",
+ type, clk_get_rate(&eclk->base));
+}
+
+static struct clk *
+exynos5410_clock_decode(device_t dev, const void *data, size_t len)
+{
+ struct exynos_clk *eclk;
+
+ /* #clock-cells should be 1 */
+ if (len != 4) {
+ return NULL;
+ }
+
+ const u_int clock_id = be32dec(data);
+
+ eclk = exynos5410_clock_find_by_id(clock_id);
+ if (eclk)
+ return &eclk->base;
+
+ return NULL;
+}
+
+static u_int
+exynos5410_clock_get_rate_pll(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk)
+{
+ struct exynos_pll_clk *epll = &eclk->u.pll;
+ struct exynos_clk *clk_parent;
+
+ KASSERT(eclk->type == EXYNOS_CLK_PLL);
+
+ clk_parent = exynos5410_clock_find(eclk->parent);
+ KASSERT(clk_parent != NULL);
+ const u_int rate_parent = exynos5410_clock_get_rate(sc,
+ &clk_parent->base);
+
+ const uint32_t v = CLOCK_READ(sc, epll->con0_reg);
+
+ return PLL_FREQ(rate_parent, v);
+}
+
+static int
+exynos5410_clock_set_rate_pll(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk, u_int rate)
+{
+ /* TODO */
+ return EOPNOTSUPP;
+}
+
+static int
+exynos5410_clock_set_parent_mux(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk, struct exynos_clk *eclk_parent)
+{
+ struct exynos_mux_clk *emux = &eclk->u.mux;
+ const char *pname = eclk_parent->base.name;
+ u_int sel;
+
+ KASSERT(eclk->type == EXYNOS_CLK_MUX);
+
+ for (sel = 0; sel < emux->nparents; sel++) {
+ if (strcmp(pname, emux->parents[sel]) == 0) {
+ break;
+ }
+ }
+ if (sel == emux->nparents) {
+ return EINVAL;
+ }
+
+ uint32_t v = CLOCK_READ(sc, emux->reg);
+ v &= ~emux->bits;
+ v |= __SHIFTIN(sel, emux->bits);
+ CLOCK_WRITE(sc, emux->reg, v);
+
+ return 0;
+}
+
+static struct exynos_clk *
+exynos5410_clock_get_parent_mux(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk)
+{
+ struct exynos_mux_clk *emux = &eclk->u.mux;
+
+ KASSERT(eclk->type == EXYNOS_CLK_MUX);
+
+ const uint32_t v = CLOCK_READ(sc, emux->reg);
+ const u_int sel = __SHIFTOUT(v, emux->bits);
+
+ KASSERT(sel < emux->nparents);
+
+ return exynos5410_clock_find(emux->parents[sel]);
+}
+
+static u_int
+exynos5410_clock_get_rate_div(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk)
+{
+ struct exynos_div_clk *ediv = &eclk->u.div;
+ struct clk *clk_parent;
+
+ KASSERT(eclk->type == EXYNOS_CLK_DIV);
+
+ clk_parent = exynos5410_clock_get_parent(sc, &eclk->base);
+ const u_int parent_rate = exynos5410_clock_get_rate(sc, clk_parent);
+
+ const uint32_t v = CLOCK_READ(sc, ediv->reg);
+ const u_int div = __SHIFTOUT(v, ediv->bits);
+
+ return parent_rate / (div + 1);
+}
+
+static int
+exynos5410_clock_set_rate_div(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk, u_int rate)
+{
+ struct exynos_div_clk *ediv = &eclk->u.div;
+ struct clk *clk_parent;
+ int tmp_div, new_div = -1;
+ u_int tmp_rate;
+
+ KASSERT(eclk->type == EXYNOS_CLK_DIV);
+
+ clk_parent = exynos5410_clock_get_parent(sc, &eclk->base);
+ const u_int parent_rate = exynos5410_clock_get_rate(sc, clk_parent);
+
+ for (tmp_div = 0; tmp_div < popcount32(ediv->bits); tmp_div++) {
+ tmp_rate = parent_rate / (tmp_div + 1);
+ if (tmp_rate <= rate) {
+ new_div = tmp_div;
+ break;
+ }
+ }
+ if (new_div == -1)
+ return EINVAL;
+
+ uint32_t v = CLOCK_READ(sc, ediv->reg);
+ v &= ~ediv->bits;
+ v |= __SHIFTIN(new_div, ediv->bits);
+ CLOCK_WRITE(sc, ediv->reg, v);
+
+ return 0;
+}
+
+static int
+exynos5410_clock_enable_gate(struct exynos5410_clock_softc *sc,
+ struct exynos_clk *eclk, bool enable)
+{
+ struct exynos_gate_clk *egate = &eclk->u.gate;
+
+ KASSERT(eclk->type == EXYNOS_CLK_GATE);
+
+ uint32_t v = CLOCK_READ(sc, egate->reg);
+ if (enable) {
+ v |= egate->bits;
+ } else {
+ v &= ~egate->bits;
+ }
+ CLOCK_WRITE(sc, egate->reg, v);
+
+ return 0;
+}
+
+/*
+ * clk api
+ */
+
+static struct clk *
+exynos5410_clock_get(void *priv, const char *name)
+{
+ struct exynos_clk *eclk;
+
+ eclk = exynos5410_clock_find(name);
+ if (eclk == NULL)
+ return NULL;
+
+ atomic_inc_uint(&eclk->refcnt);
+
+ return &eclk->base;
+}
+
+static void
+exynos5410_clock_put(void *priv, struct clk *clk)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+
+ KASSERT(eclk->refcnt > 0);
+
+ atomic_dec_uint(&eclk->refcnt);
+}
+
+static u_int
+exynos5410_clock_get_rate(void *priv, struct clk *clk)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+ struct clk *clk_parent;
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ return eclk->u.fixed.rate;
+ case EXYNOS_CLK_PLL:
+ return exynos5410_clock_get_rate_pll(priv, eclk);
+ case EXYNOS_CLK_MUX:
+ case EXYNOS_CLK_GATE:
+ clk_parent = exynos5410_clock_get_parent(priv, clk);
+ return exynos5410_clock_get_rate(priv, clk_parent);
+ case EXYNOS_CLK_DIV:
+ return exynos5410_clock_get_rate_div(priv, eclk);
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+}
+
+static int
+exynos5410_clock_set_rate(void *priv, struct clk *clk, u_int rate)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+
+ KASSERT((clk->flags & CLK_SET_RATE_PARENT) == 0);
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ return EIO;
+ case EXYNOS_CLK_PLL:
+ return exynos5410_clock_set_rate_pll(priv, eclk, rate);
+ case EXYNOS_CLK_MUX:
+ return EIO;
+ case EXYNOS_CLK_DIV:
+ return exynos5410_clock_set_rate_div(priv, eclk, rate);
+ case EXYNOS_CLK_GATE:
+ return EINVAL;
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+}
+
+static int
+exynos5410_clock_enable(void *priv, struct clk *clk)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ return 0; /* always on */
+ case EXYNOS_CLK_PLL:
+ return 0; /* XXX */
+ case EXYNOS_CLK_MUX:
+ case EXYNOS_CLK_DIV:
+ return 0;
+ case EXYNOS_CLK_GATE:
+ return exynos5410_clock_enable_gate(priv, eclk, true);
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+}
+
+static int
+exynos5410_clock_disable(void *priv, struct clk *clk)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ return EINVAL; /* always on */
+ case EXYNOS_CLK_PLL:
+ return EINVAL; /* XXX */
+ case EXYNOS_CLK_MUX:
+ case EXYNOS_CLK_DIV:
+ return EINVAL;
+ case EXYNOS_CLK_GATE:
+ return exynos5410_clock_enable_gate(priv, eclk, false);
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+}
+
+static int
+exynos5410_clock_set_parent(void *priv, struct clk *clk, struct clk *clk_parent)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+ struct exynos_clk *eclk_parent = (struct exynos_clk *)clk_parent;
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ case EXYNOS_CLK_PLL:
+ case EXYNOS_CLK_DIV:
+ case EXYNOS_CLK_GATE:
+ return EINVAL;
+ case EXYNOS_CLK_MUX:
+ return exynos5410_clock_set_parent_mux(priv, eclk, eclk_parent);
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+}
+
+static struct clk *
+exynos5410_clock_get_parent(void *priv, struct clk *clk)
+{
+ struct exynos_clk *eclk = (struct exynos_clk *)clk;
+ struct exynos_clk *eclk_parent = NULL;
+
+ switch (eclk->type) {
+ case EXYNOS_CLK_FIXED:
+ case EXYNOS_CLK_PLL:
+ case EXYNOS_CLK_DIV:
+ case EXYNOS_CLK_GATE:
+ if (eclk->parent != NULL) {
+ eclk_parent = exynos5410_clock_find(eclk->parent);
+ }
+ break;
+ case EXYNOS_CLK_MUX:
+ eclk_parent = exynos5410_clock_get_parent_mux(priv, eclk);
+ break;
+ default:
+ panic("exynos5410: unknown eclk type %d", eclk->type);
+ }
+
+ return (struct clk *)eclk_parent;
+}
