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-rw-r--r--Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt35
-rw-r--r--drivers/clk/Makefile2
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c1203
-rw-r--r--drivers/clk/clk-composite.c33
-rw-r--r--drivers/clk/clk.c46
-rw-r--r--drivers/clk/mediatek/reset.c2
-rw-r--r--drivers/clk/mmp/reset.c2
-rw-r--r--drivers/clk/qcom/gcc-ipq4019.c70
-rw-r--r--drivers/clk/qcom/reset.c2
-rw-r--r--drivers/clk/qcom/reset.h2
-rw-r--r--drivers/clk/rockchip/softrst.c2
-rw-r--r--drivers/clk/sirf/clk-atlas7.c2
-rw-r--r--drivers/clk/sunxi/clk-a10-ve.c2
-rw-r--r--drivers/clk/sunxi/clk-sun9i-mmc.c2
-rw-r--r--drivers/clk/sunxi/clk-usb.c2
-rw-r--r--drivers/clk/tegra/clk.c2
-rw-r--r--include/dt-bindings/clock/bcm2835.h20
-rw-r--r--include/linux/clk-provider.h9
18 files changed, 901 insertions, 537 deletions
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
new file mode 100644
index 000000000000..8968371d84e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
@@ -0,0 +1,35 @@
+Marvell Armada AP806 System Controller
+======================================
+
+The AP806 is one of the two core HW blocks of the Marvell Armada 7K/8K
+SoCs. It contains a system controller, which provides a number
+registers giving access to numerous features: clocks, pin-muxing and
+many other SoC configuration items. This DT binding allows to describe
+this system controller.
+
+The Device Tree node representing the AP806 system controller provides
+a number of clocks:
+
+ - 0: clock of CPU cluster 0
+ - 1: clock of CPU cluster 1
+ - 2: fixed PLL at 1200 Mhz
+ - 3: MSS clock, derived from the fixed PLL
+
+Required properties:
+
+ - compatible: must be:
+ "marvell,ap806-system-controller", "syscon"
+ - reg: register area of the AP806 system controller
+ - #clock-cells: must be set to 1
+ - clock-output-names: must be defined to:
+ "ap-cpu-cluster-0", "ap-cpu-cluster-1", "ap-fixed", "ap-mss"
+
+Example:
+
+ syscon: system-controller@6f4000 {
+ compatible = "marvell,ap806-system-controller", "syscon";
+ #clock-cells = <1>;
+ clock-output-names = "ap-cpu-cluster-0", "ap-cpu-cluster-1",
+ "ap-fixed", "ap-mss";
+ reg = <0x6f4000 0x1000>;
+ };
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 46869d696e4d..f9ad66e60b48 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -61,7 +61,7 @@ obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/
ifeq ($(CONFIG_COMMON_CLK), y)
obj-$(CONFIG_ARCH_MMP) += mmp/
endif
-obj-$(CONFIG_PLAT_ORION) += mvebu/
+obj-y += mvebu/
obj-$(CONFIG_ARCH_MESON) += meson/
obj-$(CONFIG_ARCH_MXS) += mxs/
obj-$(CONFIG_MACH_PISTACHIO) += pistachio/
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index c74ed3fd496d..4c0f1b504e2f 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -12,9 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
@@ -40,6 +37,7 @@
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/clk/bcm2835.h>
+#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -51,6 +49,7 @@
#define CM_GNRICCTL 0x000
#define CM_GNRICDIV 0x004
# define CM_DIV_FRAC_BITS 12
+# define CM_DIV_FRAC_MASK GENMASK(CM_DIV_FRAC_BITS - 1, 0)
#define CM_VPUCTL 0x008
#define CM_VPUDIV 0x00c
@@ -118,6 +117,8 @@
#define CM_SDCCTL 0x1a8
#define CM_SDCDIV 0x1ac
#define CM_ARMCTL 0x1b0
+#define CM_AVEOCTL 0x1b8
+#define CM_AVEODIV 0x1bc
#define CM_EMMCCTL 0x1c0
#define CM_EMMCDIV 0x1c4
@@ -128,6 +129,7 @@
# define CM_GATE BIT(CM_GATE_BIT)
# define CM_BUSY BIT(7)
# define CM_BUSYD BIT(8)
+# define CM_FRAC BIT(9)
# define CM_SRC_SHIFT 0
# define CM_SRC_BITS 4
# define CM_SRC_MASK 0xf
@@ -297,11 +299,11 @@
struct bcm2835_cprman {
struct device *dev;
void __iomem *regs;
- spinlock_t regs_lock;
+ spinlock_t regs_lock; /* spinlock for all clocks */
const char *osc_name;
struct clk_onecell_data onecell;
- struct clk *clks[BCM2835_CLOCK_COUNT];
+ struct clk *clks[];
};
static inline void cprman_write(struct bcm2835_cprman *cprman, u32 reg, u32 val)
@@ -314,6 +316,27 @@ static inline u32 cprman_read(struct bcm2835_cprman *cprman, u32 reg)
return readl(cprman->regs + reg);
}
+static int bcm2835_debugfs_regset(struct bcm2835_cprman *cprman, u32 base,
+ struct debugfs_reg32 *regs, size_t nregs,
+ struct dentry *dentry)
+{
+ struct dentry *regdump;
+ struct debugfs_regset32 *regset;
+
+ regset = devm_kzalloc(cprman->dev, sizeof(*regset), GFP_KERNEL);
+ if (!regset)
+ return -ENOMEM;
+
+ regset->regs = regs;
+ regset->nregs = nregs;
+ regset->base = cprman->regs + base;
+
+ regdump = debugfs_create_regset32("regdump", S_IRUGO, dentry,
+ regset);
+
+ return regdump ? 0 : -ENOMEM;
+}
+
/*
* These are fixed clocks. They're probably not all root clocks and it may
* be possible to turn them on and off but until this is mapped out better
@@ -394,115 +417,10 @@ static const struct bcm2835_pll_ana_bits bcm2835_ana_pllh = {
.fb_prediv_mask = BIT(11),
};
-/*
- * PLLA is the auxiliary PLL, used to drive the CCP2 (Compact Camera
- * Port 2) transmitter clock.
- *
- * It is in the PX LDO power domain, which is on when the AUDIO domain
- * is on.
- */
-static const struct bcm2835_pll_data bcm2835_plla_data = {
- .name = "plla",
- .cm_ctrl_reg = CM_PLLA,
- .a2w_ctrl_reg = A2W_PLLA_CTRL,
- .frac_reg = A2W_PLLA_FRAC,
- .ana_reg_base = A2W_PLLA_ANA0,
- .reference_enable_mask = A2W_XOSC_CTRL_PLLA_ENABLE,
- .lock_mask = CM_LOCK_FLOCKA,
-
- .ana = &bcm2835_ana_default,
-
- .min_rate = 600000000u,
- .max_rate = 2400000000u,
- .max_fb_rate = BCM2835_MAX_FB_RATE,
-};
-
-/* PLLB is used for the ARM's clock. */
-static const struct bcm2835_pll_data bcm2835_pllb_data = {
- .name = "pllb",
- .cm_ctrl_reg = CM_PLLB,
- .a2w_ctrl_reg = A2W_PLLB_CTRL,
- .frac_reg = A2W_PLLB_FRAC,
- .ana_reg_base = A2W_PLLB_ANA0,
- .reference_enable_mask = A2W_XOSC_CTRL_PLLB_ENABLE,
- .lock_mask = CM_LOCK_FLOCKB,
-
- .ana = &bcm2835_ana_default,
-
- .min_rate = 600000000u,
- .max_rate = 3000000000u,
- .max_fb_rate = BCM2835_MAX_FB_RATE,
-};
-
-/*
- * PLLC is the core PLL, used to drive the core VPU clock.
- *
- * It is in the PX LDO power domain, which is on when the AUDIO domain
- * is on.
-*/
-static const struct bcm2835_pll_data bcm2835_pllc_data = {
- .name = "pllc",
- .cm_ctrl_reg = CM_PLLC,
- .a2w_ctrl_reg = A2W_PLLC_CTRL,
- .frac_reg = A2W_PLLC_FRAC,
- .ana_reg_base = A2W_PLLC_ANA0,
- .reference_enable_mask = A2W_XOSC_CTRL_PLLC_ENABLE,
- .lock_mask = CM_LOCK_FLOCKC,
-
- .ana = &bcm2835_ana_default,
-
- .min_rate = 600000000u,
- .max_rate = 3000000000u,
- .max_fb_rate = BCM2835_MAX_FB_RATE,
-};
-
-/*
- * PLLD is the display PLL, used to drive DSI display panels.
- *
- * It is in the PX LDO power domain, which is on when the AUDIO domain
- * is on.
- */
-static const struct bcm2835_pll_data bcm2835_plld_data = {
- .name = "plld",
- .cm_ctrl_reg = CM_PLLD,
- .a2w_ctrl_reg = A2W_PLLD_CTRL,
- .frac_reg = A2W_PLLD_FRAC,
- .ana_reg_base = A2W_PLLD_ANA0,
- .reference_enable_mask = A2W_XOSC_CTRL_DDR_ENABLE,
- .lock_mask = CM_LOCK_FLOCKD,
-
- .ana = &bcm2835_ana_default,
-
- .min_rate = 600000000u,
- .max_rate = 2400000000u,
- .max_fb_rate = BCM2835_MAX_FB_RATE,
-};
-
-/*
- * PLLH is used to supply the pixel clock or the AUX clock for the TV
- * encoder.
- *
- * It is in the HDMI power domain.
- */
-static const struct bcm2835_pll_data bcm2835_pllh_data = {
- "pllh",
- .cm_ctrl_reg = CM_PLLH,
- .a2w_ctrl_reg = A2W_PLLH_CTRL,
- .frac_reg = A2W_PLLH_FRAC,
- .ana_reg_base = A2W_PLLH_ANA0,
- .reference_enable_mask = A2W_XOSC_CTRL_PLLC_ENABLE,
- .lock_mask = CM_LOCK_FLOCKH,
-
- .ana = &bcm2835_ana_pllh,
-
- .min_rate = 600000000u,
- .max_rate = 3000000000u,
- .max_fb_rate = BCM2835_MAX_FB_RATE,
-};
-
struct bcm2835_pll_divider_data {
const char *name;
- const struct bcm2835_pll_data *source_pll;
+ const char *source_pll;
+
u32 cm_reg;
u32 a2w_reg;
@@ -511,124 +429,6 @@ struct bcm2835_pll_divider_data {
u32 fixed_divider;
};
-static const struct bcm2835_pll_divider_data bcm2835_plla_core_data = {
- .name = "plla_core",
- .source_pll = &bcm2835_plla_data,
- .cm_reg = CM_PLLA,
- .a2w_reg = A2W_PLLA_CORE,
- .load_mask = CM_PLLA_LOADCORE,
- .hold_mask = CM_PLLA_HOLDCORE,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_plla_per_data = {
- .name = "plla_per",
- .source_pll = &bcm2835_plla_data,
- .cm_reg = CM_PLLA,
- .a2w_reg = A2W_PLLA_PER,
- .load_mask = CM_PLLA_LOADPER,
- .hold_mask = CM_PLLA_HOLDPER,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllb_arm_data = {
- .name = "pllb_arm",
- .source_pll = &bcm2835_pllb_data,
- .cm_reg = CM_PLLB,
- .a2w_reg = A2W_PLLB_ARM,
- .load_mask = CM_PLLB_LOADARM,
- .hold_mask = CM_PLLB_HOLDARM,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllc_core0_data = {
- .name = "pllc_core0",
- .source_pll = &bcm2835_pllc_data,
- .cm_reg = CM_PLLC,
- .a2w_reg = A2W_PLLC_CORE0,
- .load_mask = CM_PLLC_LOADCORE0,
- .hold_mask = CM_PLLC_HOLDCORE0,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllc_core1_data = {
- .name = "pllc_core1", .source_pll = &bcm2835_pllc_data,
- .cm_reg = CM_PLLC, A2W_PLLC_CORE1,
- .load_mask = CM_PLLC_LOADCORE1,
- .hold_mask = CM_PLLC_HOLDCORE1,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllc_core2_data = {
- .name = "pllc_core2",
- .source_pll = &bcm2835_pllc_data,
- .cm_reg = CM_PLLC,
- .a2w_reg = A2W_PLLC_CORE2,
- .load_mask = CM_PLLC_LOADCORE2,
- .hold_mask = CM_PLLC_HOLDCORE2,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllc_per_data = {
- .name = "pllc_per",
- .source_pll = &bcm2835_pllc_data,
- .cm_reg = CM_PLLC,
- .a2w_reg = A2W_PLLC_PER,
- .load_mask = CM_PLLC_LOADPER,
- .hold_mask = CM_PLLC_HOLDPER,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_plld_core_data = {
- .name = "plld_core",
- .source_pll = &bcm2835_plld_data,
- .cm_reg = CM_PLLD,
- .a2w_reg = A2W_PLLD_CORE,
- .load_mask = CM_PLLD_LOADCORE,
- .hold_mask = CM_PLLD_HOLDCORE,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_plld_per_data = {
- .name = "plld_per",
- .source_pll = &bcm2835_plld_data,
- .cm_reg = CM_PLLD,
- .a2w_reg = A2W_PLLD_PER,
- .load_mask = CM_PLLD_LOADPER,
- .hold_mask = CM_PLLD_HOLDPER,
- .fixed_divider = 1,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllh_rcal_data = {
- .name = "pllh_rcal",
- .source_pll = &bcm2835_pllh_data,
- .cm_reg = CM_PLLH,
- .a2w_reg = A2W_PLLH_RCAL,
- .load_mask = CM_PLLH_LOADRCAL,
- .hold_mask = 0,
- .fixed_divider = 10,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllh_aux_data = {
- .name = "pllh_aux",
- .source_pll = &bcm2835_pllh_data,
- .cm_reg = CM_PLLH,
- .a2w_reg = A2W_PLLH_AUX,
- .load_mask = CM_PLLH_LOADAUX,
- .hold_mask = 0,
- .fixed_divider = 10,
-};
-
-static const struct bcm2835_pll_divider_data bcm2835_pllh_pix_data = {
- .name = "pllh_pix",
- .source_pll = &bcm2835_pllh_data,
- .cm_reg = CM_PLLH,
- .a2w_reg = A2W_PLLH_PIX,
- .load_mask = CM_PLLH_LOADPIX,
- .hold_mask = 0,
- .fixed_divider = 10,
-};
-
struct bcm2835_clock_data {
const char *name;
@@ -644,187 +444,14 @@ struct bcm2835_clock_data {
u32 frac_bits;
bool is_vpu_clock;
+ bool is_mash_clock;
};
-static const char *const bcm2835_clock_per_parents[] = {
- "gnd",
- "xosc",
- "testdebug0",
- "testdebug1",
- "plla_per",
- "pllc_per",
- "plld_per",
- "pllh_aux",
-};
-
-static const char *const bcm2835_clock_vpu_parents[] = {
- "gnd",
- "xosc",
- "testdebug0",
- "testdebug1",
- "plla_core",
- "pllc_core0",
- "plld_core",
- "pllh_aux",
- "pllc_core1",
- "pllc_core2",
-};
-
-static const char *const bcm2835_clock_osc_parents[] = {
- "gnd",
- "xosc",
- "testdebug0",
- "testdebug1"
-};
-
-/*
- * Used for a 1Mhz clock for the system clocksource, and also used by
- * the watchdog timer and the camera pulse generator.
- */
-static const struct bcm2835_clock_data bcm2835_clock_timer_data = {
- .name = "timer",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_osc_parents),
- .parents = bcm2835_clock_osc_parents,
- .ctl_reg = CM_TIMERCTL,
- .div_reg = CM_TIMERDIV,
- .int_bits = 6,
- .frac_bits = 12,
-};
-
-/* One Time Programmable Memory clock. Maximum 10Mhz. */
-static const struct bcm2835_clock_data bcm2835_clock_otp_data = {
- .name = "otp",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_osc_parents),
- .parents = bcm2835_clock_osc_parents,
- .ctl_reg = CM_OTPCTL,
- .div_reg = CM_OTPDIV,
- .int_bits = 4,
- .frac_bits = 0,
-};
-
-/*
- * VPU clock. This doesn't have an enable bit, since it drives the
- * bus for everything else, and is special so it doesn't need to be
- * gated for rate changes. It is also known as "clk_audio" in various
- * hardware documentation.
- */
-static const struct bcm2835_clock_data bcm2835_clock_vpu_data = {
- .name = "vpu",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents),
- .parents = bcm2835_clock_vpu_parents,
- .ctl_reg = CM_VPUCTL,
- .div_reg = CM_VPUDIV,
- .int_bits = 12,
- .frac_bits = 8,
- .is_vpu_clock = true,
-};
-
-static const struct bcm2835_clock_data bcm2835_clock_v3d_data = {
- .name = "v3d",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents),
- .parents = bcm2835_clock_vpu_parents,
- .ctl_reg = CM_V3DCTL,
- .div_reg = CM_V3DDIV,
- .int_bits = 4,
- .frac_bits = 8,
-};
-
-static const struct bcm2835_clock_data bcm2835_clock_isp_data = {
- .name = "isp",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents),
- .parents = bcm2835_clock_vpu_parents,
- .ctl_reg = CM_ISPCTL,
- .div_reg = CM_ISPDIV,
- .int_bits = 4,
- .frac_bits = 8,
-};
-
-static const struct bcm2835_clock_data bcm2835_clock_h264_data = {
- .name = "h264",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents),
- .parents = bcm2835_clock_vpu_parents,
- .ctl_reg = CM_H264CTL,
- .div_reg = CM_H264DIV,
- .int_bits = 4,
- .frac_bits = 8,
-};
-
-/* TV encoder clock. Only operating frequency is 108Mhz. */
-static const struct bcm2835_clock_data bcm2835_clock_vec_data = {
- .name = "vec",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
- .parents = bcm2835_clock_per_parents,
- .ctl_reg = CM_VECCTL,
- .div_reg = CM_VECDIV,
- .int_bits = 4,
- .frac_bits = 0,
-};
-
-static const struct bcm2835_clock_data bcm2835_clock_uart_data = {
- .name = "uart",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
- .parents = bcm2835_clock_per_parents,
- .ctl_reg = CM_UARTCTL,
- .div_reg = CM_UARTDIV,
- .int_bits = 10,
- .frac_bits = 12,
-};
-
-/* HDMI state machine */
-static const struct bcm2835_clock_data bcm2835_clock_hsm_data = {
- .name = "hsm",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
- .parents = bcm2835_clock_per_parents,
- .ctl_reg = CM_HSMCTL,
- .div_reg = CM_HSMDIV,
- .int_bits = 4,
- .frac_bits = 8,
-};
-
-/*
- * Secondary SDRAM clock. Used for low-voltage modes when the PLL in
- * the SDRAM controller can't be used.
- */
-static const struct bcm2835_clock_data bcm2835_clock_sdram_data = {
- .name = "sdram",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents),
- .parents = bcm2835_clock_vpu_parents,
- .ctl_reg = CM_SDCCTL,
- .div_reg = CM_SDCDIV,
- .int_bits = 6,
- .frac_bits = 0,
-};
-
-/* Clock for the temperature sensor. Generally run at 2Mhz, max 5Mhz. */
-static const struct bcm2835_clock_data bcm2835_clock_tsens_data = {
- .name = "tsens",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_osc_parents),
- .parents = bcm2835_clock_osc_parents,
- .ctl_reg = CM_TSENSCTL,
- .div_reg = CM_TSENSDIV,
- .int_bits = 5,
- .frac_bits = 0,
-};
-
-/* Arasan EMMC clock */
-static const struct bcm2835_clock_data bcm2835_clock_emmc_data = {
- .name = "emmc",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
- .parents = bcm2835_clock_per_parents,
- .ctl_reg = CM_EMMCCTL,
- .div_reg = CM_EMMCDIV,
- .int_bits = 4,
- .frac_bits = 8,
-};
+struct bcm2835_gate_data {
+ const char *name;
+ const char *parent;
-static const struct bcm2835_clock_data bcm2835_clock_pwm_data = {
- .name = "pwm",
- .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
- .parents = bcm2835_clock_per_parents,
- .ctl_reg = CM_PWMCTL,
- .div_reg = CM_PWMDIV,
- .int_bits = 12,
- .frac_bits = 12,
+ u32 ctl_reg;
};
struct bcm2835_pll {
@@ -910,8 +537,14 @@ static void bcm2835_pll_off(struct clk_hw *hw)
struct bcm2835_cprman *cprman = pll->cprman;
const struct bcm2835_pll_data *data = pll->data;
- cprman_write(cprman, data->cm_ctrl_reg, CM_PLL_ANARST);
- cprman_write(cprman, data->a2w_ctrl_reg, A2W_PLL_CTRL_PWRDN);
+ spin_lock(&cprman->regs_lock);
+ cprman_write(cprman, data->cm_ctrl_reg,
+ cprman_read(cprman, data->cm_ctrl_reg) |
+ CM_PLL_ANARST);
+ cprman_write(cprman, data->a2w_ctrl_reg,
+ cprman_read(cprman, data->a2w_ctrl_reg) |
+ A2W_PLL_CTRL_PWRDN);
+ spin_unlock(&cprman->regs_lock);
}
static int bcm2835_pll_on(struct clk_hw *hw)
@@ -1030,6 +663,36 @@ static int bcm2835_pll_set_rate(struct clk_hw *hw,
return 0;
}
+static int bcm2835_pll_debug_init(struct clk_hw *hw,
+ struct dentry *dentry)
+{
+ struct bcm2835_pll *pll = container_of(hw, struct bcm2835_pll, hw);
+ struct bcm2835_cprman *cprman = pll->cprman;
+ const struct bcm2835_pll_data *data = pll->data;
+ struct debugfs_reg32 *regs;
+
+ regs = devm_kzalloc(cprman->dev, 7 * sizeof(*regs), GFP_KERNEL);
+ if (!regs)
+ return -ENOMEM;
+
+ regs[0].name = "cm_ctrl";
+ regs[0].offset = data->cm_ctrl_reg;
+ regs[1].name = "a2w_ctrl";
+ regs[1].offset = data->a2w_ctrl_reg;
+ regs[2].name = "frac";
+ regs[2].offset = data->frac_reg;
+ regs[3].name = "ana0";
+ regs[3].offset = data->ana_reg_base + 0 * 4;
+ regs[4].name = "ana1";
+ regs[4].offset = data->ana_reg_base + 1 * 4;
+ regs[5].name = "ana2";
+ regs[5].offset = data->ana_reg_base + 2 * 4;
+ regs[6].name = "ana3";
+ regs[6].offset = data->ana_reg_base + 3 * 4;
+
+ return bcm2835_debugfs_regset(cprman, 0, regs, 7, dentry);
+}
+
static const struct clk_ops bcm2835_pll_clk_ops = {
.is_prepared = bcm2835_pll_is_on,
.prepare = bcm2835_pll_on,
@@ -1037,6 +700,7 @@ static const struct clk_ops bcm2835_pll_clk_ops = {
.recalc_rate = bcm2835_pll_get_rate,
.set_rate = bcm2835_pll_set_rate,
.round_rate = bcm2835_pll_round_rate,
+ .debug_init = bcm2835_pll_debug_init,
};
struct bcm2835_pll_divider {
@@ -1079,10 +743,12 @@ static void bcm2835_pll_divider_off(struct clk_hw *hw)
struct bcm2835_cprman *cprman = divider->cprman;
const struct bcm2835_pll_divider_data *data = divider->data;
+ spin_lock(&cprman->regs_lock);
cprman_write(cprman, data->cm_reg,
(cprman_read(cprman, data->cm_reg) &
~data->load_mask) | data->hold_mask);
cprman_write(cprman, data->a2w_reg, A2W_PLL_CHANNEL_DISABLE);
+ spin_unlock(&cprman->regs_lock);
}
static int bcm2835_pll_divider_on(struct clk_hw *hw)
@@ -1091,12 +757,14 @@ static int bcm2835_pll_divider_on(struct clk_hw *hw)
struct bcm2835_cprman *cprman = divider->cprman;
const struct bcm2835_pll_divider_data *data = divider->data;
+ spin_lock(&cprman->regs_lock);
cprman_write(cprman, data->a2w_reg,
cprman_read(cprman, data->a2w_reg) &
~A2W_PLL_CHANNEL_DISABLE);
cprman_write(cprman, data->cm_reg,
cprman_read(cprman, data->cm_reg) & ~data->hold_mask);
+ spin_unlock(&cprman->regs_lock);
return 0;
}
@@ -1124,6 +792,26 @@ static int bcm2835_pll_divider_set_rate(struct clk_hw *hw,
return 0;
}
+static int bcm2835_pll_divider_debug_init(struct clk_hw *hw,
+ struct dentry *dentry)
+{
+ struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw);
+ struct bcm2835_cprman *cprman = divider->cprman;
+ const struct bcm2835_pll_divider_data *data = divider->data;
+ struct debugfs_reg32 *regs;
+
+ regs = devm_kzalloc(cprman->dev, 7 * sizeof(*regs), GFP_KERNEL);
+ if (!regs)
+ return -ENOMEM;
+
+ regs[0].name = "cm";
+ regs[0].offset = data->cm_reg;
+ regs[1].name = "a2w";
+ regs[1].offset = data->a2w_reg;
+
+ return bcm2835_debugfs_regset(cprman, 0, regs, 2, dentry);
+}
+
static const struct clk_ops bcm2835_pll_divider_clk_ops = {
.is_prepared = bcm2835_pll_divider_is_on,
.prepare = bcm2835_pll_divider_on,
@@ -1131,6 +819,7 @@ static const struct clk_ops bcm2835_pll_divider_clk_ops = {
.recalc_rate = bcm2835_pll_divider_get_rate,
.set_rate = bcm2835_pll_divider_set_rate,
.round_rate = bcm2835_pll_divider_round_rate,
+ .debug_init = bcm2835_pll_divider_debug_init,
};
/*
@@ -1170,7 +859,7 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
GENMASK(CM_DIV_FRAC_BITS - data->frac_bits, 0) >> 1;
u64 temp = (u64)parent_rate << CM_DIV_FRAC_BITS;
u64 rem;
- u32 div;
+ u32 div, mindiv, maxdiv;
rem = do_div(temp, rate);
div = temp;
@@ -1180,10 +869,23 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
div += unused_frac_mask + 1;
div &= ~unused_frac_mask;
- /* Clamp to the limits. */
- div = max(div, unused_frac_mask + 1);
- div = min_t(u32, div, GENMASK(data->int_bits + CM_DIV_FRAC_BITS - 1,
- CM_DIV_FRAC_BITS - data->frac_bits));
+ /* different clamping limits apply for a mash clock */
+ if (data->is_mash_clock) {
+ /* clamp to min divider of 2 */
+ mindiv = 2 << CM_DIV_FRAC_BITS;
+ /* clamp to the highest possible integer divider */
+ maxdiv = (BIT(data->int_bits) - 1) << CM_DIV_FRAC_BITS;
+ } else {
+ /* clamp to min divider of 1 */
+ mindiv = 1 << CM_DIV_FRAC_BITS;
+ /* clamp to the highest possible fractional divider */
+ maxdiv = GENMASK(data->int_bits + CM_DIV_FRAC_BITS - 1,
+ CM_DIV_FRAC_BITS - data->frac_bits);
+ }
+
+ /* apply the clamping limits */
+ div = max_t(u32, div, mindiv);
+ div = min_t(u32, div, maxdiv);
return div;
}
@@ -1277,14 +979,31 @@ static int bcm2835_clock_set_rate(struct clk_hw *hw,
struct bcm2835_cprman *cprman = clock->cprman;
const struct bcm2835_clock_data *data = clock->data;
u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate, false);
+ u32 ctl;
+
+ spin_lock(&cprman->regs_lock);
+
+ /*
+ * Setting up frac support
+ *
+ * In principle it is recommended to stop/start the clock first,
+ * but as we set CLK_SET_RATE_GATE during registration of the
+ * clock this requirement should be take care of by the
+ * clk-framework.
+ */
+ ctl = cprman_read(cprman, data->ctl_reg) & ~CM_FRAC;
+ ctl |= (div & CM_DIV_FRAC_MASK) ? CM_FRAC : 0;
+ cprman_write(cprman, data->ctl_reg, ctl);
cprman_write(cprman, data->div_reg, div);
+ spin_unlock(&cprman->regs_lock);
+
return 0;
}
static int bcm2835_clock_determine_rate(struct clk_hw *hw,
- struct clk_rate_request *req)
+ struct clk_rate_request *req)
{
struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
struct clk_hw *parent, *best_parent = NULL;
@@ -1342,6 +1061,30 @@ static u8 bcm2835_clock_get_parent(struct clk_hw *hw)
return (src & CM_SRC_MASK) >> CM_SRC_SHIFT;
}
+static struct debugfs_reg32 bcm2835_debugfs_clock_reg32[] = {
+ {
+ .name = "ctl",
+ .offset = 0,
+ },
+ {
+ .name = "div",
+ .offset = 4,
+ },
+};
+
+static int bcm2835_clock_debug_init(struct clk_hw *hw,
+ struct dentry *dentry)
+{
+ struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
+ struct bcm2835_cprman *cprman = clock->cprman;
+ const struct bcm2835_clock_data *data = clock->data;
+
+ return bcm2835_debugfs_regset(
+ cprman, data->ctl_reg,
+ bcm2835_debugfs_clock_reg32,
+ ARRAY_SIZE(bcm2835_debugfs_clock_reg32),
+ dentry);
+}
static const struct clk_ops bcm2835_clock_clk_ops = {
.is_prepared = bcm2835_clock_is_on,
@@ -1352,6 +1095,7 @@ static const struct clk_ops bcm2835_clock_clk_ops = {
.determine_rate = bcm2835_clock_determine_rate,
.set_parent = bcm2835_clock_set_parent,
.get_parent = bcm2835_clock_get_parent,
+ .debug_init = bcm2835_clock_debug_init,
};
static int bcm2835_vpu_clock_is_on(struct clk_hw *hw)
@@ -1370,6 +1114,7 @@ static const struct clk_ops bcm2835_vpu_clock_clk_ops = {
.determine_rate = bcm2835_clock_determine_rate,
.set_parent = bcm2835_clock_set_parent,
.get_parent = bcm2835_clock_get_parent,
+ .debug_init = bcm2835_clock_debug_init,
};
static struct clk *bcm2835_register_pll(struct bcm2835_cprman *cprman,
@@ -1418,7 +1163,7 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman,
memset(&init, 0, sizeof(init));
- init.parent_names = &data->source_pll->name;
+ init.parent_names = &data->source_pll;
init.num_parents = 1;
init.name = divider_name;
init.ops = &bcm2835_pll_divider_clk_ops;
@@ -1501,14 +1246,559 @@ static struct clk *bcm2835_register_clock(struct bcm2835_cprman *cprman,
return devm_clk_register(cprman->dev, &clock->hw);
}
+static struct clk *bcm2835_register_gate(struct bcm2835_cprman *cprman,
+ const struct bcm2835_gate_data *data)
+{
+ return clk_register_gate(cprman->dev, data->name, data->parent,
+ CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE,
+ cprman->regs + data->ctl_reg,
+ CM_GATE_BIT, 0, &cprman->regs_lock);
+}
+
+typedef struct clk *(*bcm2835_clk_register)(struct bcm2835_cprman *cprman,
+ const void *data);
+struct bcm2835_clk_desc {
+ bcm2835_clk_register clk_register;
+ const void *data;
+};
+
+/* assignment helper macros for different clock types */
+#define _REGISTER(f, ...) { .clk_register = (bcm2835_clk_register)f, \
+ .data = __VA_ARGS__ }
+#define REGISTER_PLL(...) _REGISTER(&bcm2835_register_pll, \
+ &(struct bcm2835_pll_data) \
+ {__VA_ARGS__})
+#define REGISTER_PLL_DIV(...) _REGISTER(&bcm2835_register_pll_divider, \
+ &(struct bcm2835_pll_divider_data) \
+ {__VA_ARGS__})
+#define REGISTER_CLK(...) _REGISTER(&bcm2835_register_clock, \
+ &(struct bcm2835_clock_data) \
+ {__VA_ARGS__})
+#define REGISTER_GATE(...) _REGISTER(&bcm2835_register_gate, \
+ &(struct bcm2835_gate_data) \
+ {__VA_ARGS__})
+
+/* parent mux arrays plus helper macros */
+
+/* main oscillator parent mux */
+static const char *const bcm2835_clock_osc_parents[] = {
+ "gnd",
+ "xosc",
+ "testdebug0",
+ "testdebug1"
+};
+
+#define REGISTER_OSC_CLK(...) REGISTER_CLK( \
+ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_osc_parents), \
+ .parents = bcm2835_clock_osc_parents, \
+ __VA_ARGS__)
+
+/* main peripherial parent mux */
+static const char *const bcm2835_clock_per_parents[] = {
+ "gnd",
+ "xosc",
+ "testdebug0",
+ "testdebug1",
+ "plla_per",
+ "pllc_per",
+ "plld_per",
+ "pllh_aux",
+};
+
+#define REGISTER_PER_CLK(...) REGISTER_CLK( \
+ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents), \
+ .parents = bcm2835_clock_per_parents, \
+ __VA_ARGS__)
+
+/* main vpu parent mux */
+static const char *const bcm2835_clock_vpu_parents[] = {
+ "gnd",
+ "xosc",
+ "testdebug0",
+ "testdebug1",
+ "plla_core",
+ "pllc_core0",
+ "plld_core",
+ "pllh_aux",
+ "pllc_core1",
+ "pllc_core2",
+};
+
+#define REGISTER_VPU_CLK(...) REGISTER_CLK( \
+ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_vpu_parents), \
+ .parents = bcm2835_clock_vpu_parents, \
+ __VA_ARGS__)
+
+/*
+ * the real definition of all the pll, pll_dividers and clocks
+ * these make use of the above REGISTER_* macros
+ */
+static const struct bcm2835_clk_desc clk_desc_array[] = {
+ /* the PLL + PLL dividers */
+
+ /*
+ * PLLA is the auxiliary PLL, used to drive the CCP2
+ * (Compact Camera Port 2) transmitter clock.
+ *
+ * It is in the PX LDO power domain, which is on when the
+ * AUDIO domain is on.
+ */
+ [BCM2835_PLLA] = REGISTER_PLL(
+ .name = "plla",
+ .cm_ctrl_reg = CM_PLLA,
+ .a2w_ctrl_reg = A2W_PLLA_CTRL,
+ .frac_reg = A2W_PLLA_FRAC,
+ .ana_reg_base = A2W_PLLA_ANA0,
+ .reference_enable_mask = A2W_XOSC_CTRL_PLLA_ENABLE,
+ .lock_mask = CM_LOCK_FLOCKA,
+
+ .ana = &bcm2835_ana_default,
+
+ .min_rate = 600000000u,
+ .max_rate = 2400000000u,
+ .max_fb_rate = BCM2835_MAX_FB_RATE),
+ [BCM2835_PLLA_CORE] = REGISTER_PLL_DIV(
+ .name = "plla_core",
+ .source_pll = "plla",
+ .cm_reg = CM_PLLA,
+ .a2w_reg = A2W_PLLA_CORE,
+ .load_mask = CM_PLLA_LOADCORE,
+ .hold_mask = CM_PLLA_HOLDCORE,
+ .fixed_divider = 1),
+ [BCM2835_PLLA_PER] = REGISTER_PLL_DIV(
+ .name = "plla_per",
+ .source_pll = "plla",
+ .cm_reg = CM_PLLA,
+ .a2w_reg = A2W_PLLA_PER,
+ .load_mask = CM_PLLA_LOADPER,
+ .hold_mask = CM_PLLA_HOLDPER,
+ .fixed_divider = 1),
+ [BCM2835_PLLA_DSI0] = REGISTER_PLL_DIV(
+ .name = "plla_dsi0",
+ .source_pll = "plla",
+ .cm_reg = CM_PLLA,
+ .a2w_reg = A2W_PLLA_DSI0,
+ .load_mask = CM_PLLA_LOADDSI0,
+ .hold_mask = CM_PLLA_HOLDDSI0,
+ .fixed_divider = 1),
+ [BCM2835_PLLA_CCP2] = REGISTER_PLL_DIV(
+ .name = "plla_ccp2",
+ .source_pll = "plla",
+ .cm_reg = CM_PLLA,
+ .a2w_reg = A2W_PLLA_CCP2,
+ .load_mask = CM_PLLA_LOADCCP2,
+ .hold_mask = CM_PLLA_HOLDCCP2,
+ .fixed_divider = 1),
+
+ /* PLLB is used for the ARM's clock. */
+ [BCM2835_PLLB] = REGISTER_PLL(
+ .name = "pllb",
+ .cm_ctrl_reg = CM_PLLB,
+ .a2w_ctrl_reg = A2W_PLLB_CTRL,
+ .frac_reg = A2W_PLLB_FRAC,
+ .ana_reg_base = A2W_PLLB_ANA0,
+ .reference_enable_mask = A2W_XOSC_CTRL_PLLB_ENABLE,
+ .lock_mask = CM_LOCK_FLOCKB,
+
+ .ana = &bcm2835_ana_default,
+
+ .min_rate = 600000000u,
+ .max_rate = 3000000000u,
+ .max_fb_rate = BCM2835_MAX_FB_RATE),
+ [BCM2835_PLLB_ARM] = REGISTER_PLL_DIV(
+ .name = "pllb_arm",
+ .source_pll = "pllb",
+ .cm_reg = CM_PLLB,
+ .a2w_reg = A2W_PLLB_ARM,
+ .load_mask = CM_PLLB_LOADARM,
+ .hold_mask = CM_PLLB_HOLDARM,
+ .fixed_divider = 1),
+
+ /*
+ * PLLC is the core PLL, used to drive the core VPU clock.
+ *
+ * It is in the PX LDO power domain, which is on when the
+ * AUDIO domain is on.
+ */
+ [BCM2835_PLLC] = REGISTER_PLL(
+ .name = "pllc",
+ .cm_ctrl_reg = CM_PLLC,
+ .a2w_ctrl_reg = A2W_PLLC_CTRL,
+ .frac_reg = A2W_PLLC_FRAC,
+ .ana_reg_base = A2W_PLLC_ANA0,
+ .reference_enable_mask = A2W_XOSC_CTRL_PLLC_ENABLE,
+ .lock_mask = CM_LOCK_FLOCKC,
+
+ .ana = &bcm2835_ana_default,
+
+ .min_rate = 600000000u,
+ .max_rate = 3000000000u,
+ .max_fb_rate = BCM2835_MAX_FB_RATE),
+ [BCM2835_PLLC_CORE0] = REGISTER_PLL_DIV(
+ .name = "pllc_core0",
+ .source_pll = "pllc",
+ .cm_reg = CM_PLLC,
+ .a2w_reg = A2W_PLLC_CORE0,
+ .load_mask = CM_PLLC_LOADCORE0,
+ .hold_mask = CM_PLLC_HOLDCORE0,
+ .fixed_divider = 1),
+ [BCM2835_PLLC_CORE1] = REGISTER_PLL_DIV(
+ .name = "pllc_core1",
+ .source_pll = "pllc",
+ .cm_reg = CM_PLLC,
+ .a2w_reg = A2W_PLLC_CORE1,
+ .load_mask = CM_PLLC_LOADCORE1,
+ .hold_mask = CM_PLLC_HOLDCORE1,
+ .fixed_divider = 1),
+ [BCM2835_PLLC_CORE2] = REGISTER_PLL_DIV(
+ .name = "pllc_core2",
+ .source_pll = "pllc",
+ .cm_reg = CM_PLLC,
+ .a2w_reg = A2W_PLLC_CORE2,
+ .load_mask = CM_PLLC_LOADCORE2,
+ .hold_mask = CM_PLLC_HOLDCORE2,
+ .fixed_divider = 1),
+ [BCM2835_PLLC_PER] = REGISTER_PLL_DIV(
+ .name = "pllc_per",
+ .source_pll = "pllc",
+ .cm_reg = CM_PLLC,
+ .a2w_reg = A2W_PLLC_PER,
+ .load_mask = CM_PLLC_LOADPER,
+ .hold_mask = CM_PLLC_HOLDPER,
+ .fixed_divider = 1),
+
+ /*
+ * PLLD is the display PLL, used to drive DSI display panels.
+ *
+ * It is in the PX LDO power domain, which is on when the
+ * AUDIO domain is on.
+ */
+ [BCM2835_PLLD] = REGISTER_PLL(
+ .name = "plld",
+ .cm_ctrl_reg = CM_PLLD,
+ .a2w_ctrl_reg = A2W_PLLD_CTRL,
+ .frac_reg = A2W_PLLD_FRAC,
+ .ana_reg_base = A2W_PLLD_ANA0,
+ .reference_enable_mask = A2W_XOSC_CTRL_DDR_ENABLE,
+ .lock_mask = CM_LOCK_FLOCKD,
+
+ .ana = &bcm2835_ana_default,
+
+ .min_rate = 600000000u,
+ .max_rate = 2400000000u,
+ .max_fb_rate = BCM2835_MAX_FB_RATE),
+ [BCM2835_PLLD_CORE] = REGISTER_PLL_DIV(
+ .name = "plld_core",
+ .source_pll = "plld",
+ .cm_reg = CM_PLLD,
+ .a2w_reg = A2W_PLLD_CORE,
+ .load_mask = CM_PLLD_LOADCORE,
+ .hold_mask = CM_PLLD_HOLDCORE,
+ .fixed_divider = 1),
+ [BCM2835_PLLD_PER] = REGISTER_PLL_DIV(
+ .name = "plld_per",
+ .source_pll = "plld",
+ .cm_reg = CM_PLLD,
+ .a2w_reg = A2W_PLLD_PER,
+ .load_mask = CM_PLLD_LOADPER,
+ .hold_mask = CM_PLLD_HOLDPER,
+ .fixed_divider = 1),
+ [BCM2835_PLLD_DSI0] = REGISTER_PLL_DIV(
+ .name = "plld_dsi0",
+ .source_pll = "plld",
+ .cm_reg = CM_PLLD,
+ .a2w_reg = A2W_PLLD_DSI0,
+ .load_mask = CM_PLLD_LOADDSI0,
+ .hold_mask = CM_PLLD_HOLDDSI0,
+ .fixed_divider = 1),
+ [BCM2835_PLLD_DSI1] = REGISTER_PLL_DIV(
+ .name = "plld_dsi1",
+ .source_pll = "plld",
+ .cm_reg = CM_PLLD,
+ .a2w_reg = A2W_PLLD_DSI1,
+ .load_mask = CM_PLLD_LOADDSI1,
+ .hold_mask = CM_PLLD_HOLDDSI1,
+ .fixed_divider = 1),
+
+ /*
+ * PLLH is used to supply the pixel clock or the AUX clock for the
+ * TV encoder.
+ *
+ * It is in the HDMI power domain.
+ */
+ [BCM2835_PLLH] = REGISTER_PLL(
+ "pllh",
+ .cm_ctrl_reg = CM_PLLH,
+ .a2w_ctrl_reg = A2W_PLLH_CTRL,
+ .frac_reg = A2W_PLLH_FRAC,
+ .ana_reg_base = A2W_PLLH_ANA0,
+ .reference_enable_mask = A2W_XOSC_CTRL_PLLC_ENABLE,
+ .lock_mask = CM_LOCK_FLOCKH,
+
+ .ana = &bcm2835_ana_pllh,
+
+ .min_rate = 600000000u,
+ .max_rate = 3000000000u,
+ .max_fb_rate = BCM2835_MAX_FB_RATE),
+ [BCM2835_PLLH_RCAL] = REGISTER_PLL_DIV(
+ .name = "pllh_rcal",
+ .source_pll = "pllh",
+ .cm_reg = CM_PLLH,
+ .a2w_reg = A2W_PLLH_RCAL,
+ .load_mask = CM_PLLH_LOADRCAL,
+ .hold_mask = 0,
+ .fixed_divider = 10),
+ [BCM2835_PLLH_AUX] = REGISTER_PLL_DIV(
+ .name = "pllh_aux",
+ .source_pll = "pllh",
+ .cm_reg = CM_PLLH,
+ .a2w_reg = A2W_PLLH_AUX,
+ .load_mask = CM_PLLH_LOADAUX,
+ .hold_mask = 0,
+ .fixed_divider = 10),
+ [BCM2835_PLLH_PIX] = REGISTER_PLL_DIV(
+ .name = "pllh_pix",
+ .source_pll = "pllh",
+ .cm_reg = CM_PLLH,
+ .a2w_reg = A2W_PLLH_PIX,
+ .load_mask = CM_PLLH_LOADPIX,
+ .hold_mask = 0,
+ .fixed_divider = 10),
+
+ /* the clocks */
+
+ /* clocks with oscillator parent mux */
+
+ /* One Time Programmable Memory clock. Maximum 10Mhz. */
+ [BCM2835_CLOCK_OTP] = REGISTER_OSC_CLK(
+ .name = "otp",
+ .ctl_reg = CM_OTPCTL,
+ .div_reg = CM_OTPDIV,
+ .int_bits = 4,
+ .frac_bits = 0),
+ /*
+ * Used for a 1Mhz clock for the system clocksource, and also used
+ * bythe watchdog timer and the camera pulse generator.
+ */
+ [BCM2835_CLOCK_TIMER] = REGISTER_OSC_CLK(
+ .name = "timer",
+ .ctl_reg = CM_TIMERCTL,
+ .div_reg = CM_TIMERDIV,
+ .int_bits = 6,
+ .frac_bits = 12),
+ /*
+ * Clock for the temperature sensor.
+ * Generally run at 2Mhz, max 5Mhz.
+ */
+ [BCM2835_CLOCK_TSENS] = REGISTER_OSC_CLK(
+ .name = "tsens",
+ .ctl_reg = CM_TSENSCTL,
+ .div_reg = CM_TSENSDIV,
+ .int_bits = 5,
+ .frac_bits = 0),
+ [BCM2835_CLOCK_TEC] = REGISTER_OSC_CLK(
+ .name = "tec",
+ .ctl_reg = CM_TECCTL,
+ .div_reg = CM_TECDIV,
+ .int_bits = 6,
+ .frac_bits = 0),
+
+ /* clocks with vpu parent mux */
+ [BCM2835_CLOCK_H264] = REGISTER_VPU_CLK(
+ .name = "h264",
+ .ctl_reg = CM_H264CTL,
+ .div_reg = CM_H264DIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_ISP] = REGISTER_VPU_CLK(
+ .name = "isp",
+ .ctl_reg = CM_ISPCTL,
+ .div_reg = CM_ISPDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+
+ /*
+ * Secondary SDRAM clock. Used for low-voltage modes when the PLL
+ * in the SDRAM controller can't be used.
+ */
+ [BCM2835_CLOCK_SDRAM] = REGISTER_VPU_CLK(
+ .name = "sdram",
+ .ctl_reg = CM_SDCCTL,
+ .div_reg = CM_SDCDIV,
+ .int_bits = 6,
+ .frac_bits = 0),
+ [BCM2835_CLOCK_V3D] = REGISTER_VPU_CLK(
+ .name = "v3d",
+ .ctl_reg = CM_V3DCTL,
+ .div_reg = CM_V3DDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ /*
+ * VPU clock. This doesn't have an enable bit, since it drives
+ * the bus for everything else, and is special so it doesn't need
+ * to be gated for rate changes. It is also known as "clk_audio"
+ * in various hardware documentation.
+ */
+ [BCM2835_CLOCK_VPU] = REGISTER_VPU_CLK(
+ .name = "vpu",
+ .ctl_reg = CM_VPUCTL,
+ .div_reg = CM_VPUDIV,
+ .int_bits = 12,
+ .frac_bits = 8,
+ .is_vpu_clock = true),
+
+ /* clocks with per parent mux */
+ [BCM2835_CLOCK_AVEO] = REGISTER_PER_CLK(
+ .name = "aveo",
+ .ctl_reg = CM_AVEOCTL,
+ .div_reg = CM_AVEODIV,
+ .int_bits = 4,
+ .frac_bits = 0),
+ [BCM2835_CLOCK_CAM0] = REGISTER_PER_CLK(
+ .name = "cam0",
+ .ctl_reg = CM_CAM0CTL,
+ .div_reg = CM_CAM0DIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_CAM1] = REGISTER_PER_CLK(
+ .name = "cam1",
+ .ctl_reg = CM_CAM1CTL,
+ .div_reg = CM_CAM1DIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_DFT] = REGISTER_PER_CLK(
+ .name = "dft",
+ .ctl_reg = CM_DFTCTL,
+ .div_reg = CM_DFTDIV,
+ .int_bits = 5,
+ .frac_bits = 0),
+ [BCM2835_CLOCK_DPI] = REGISTER_PER_CLK(
+ .name = "dpi",
+ .ctl_reg = CM_DPICTL,
+ .div_reg = CM_DPIDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+
+ /* Arasan EMMC clock */
+ [BCM2835_CLOCK_EMMC] = REGISTER_PER_CLK(
+ .name = "emmc",
+ .ctl_reg = CM_EMMCCTL,
+ .div_reg = CM_EMMCDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+
+ /* General purpose (GPIO) clocks */
+ [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK(
+ .name = "gp0",
+ .ctl_reg = CM_GP0CTL,
+ .div_reg = CM_GP0DIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+ .is_mash_clock = true),
+ [BCM2835_CLOCK_GP1] = REGISTER_PER_CLK(
+ .name = "gp1",
+ .ctl_reg = CM_GP1CTL,
+ .div_reg = CM_GP1DIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+ .is_mash_clock = true),
+ [BCM2835_CLOCK_GP2] = REGISTER_PER_CLK(
+ .name = "gp2",
+ .ctl_reg = CM_GP2CTL,
+ .div_reg = CM_GP2DIV,
+ .int_bits = 12,
+ .frac_bits = 12),
+
+ /* HDMI state machine */
+ [BCM2835_CLOCK_HSM] = REGISTER_PER_CLK(
+ .name = "hsm",
+ .ctl_reg = CM_HSMCTL,
+ .div_reg = CM_HSMDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_PCM] = REGISTER_PER_CLK(
+ .name = "pcm",
+ .ctl_reg = CM_PCMCTL,
+ .div_reg = CM_PCMDIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+ .is_mash_clock = true),
+ [BCM2835_CLOCK_PWM] = REGISTER_PER_CLK(
+ .name = "pwm",
+ .ctl_reg = CM_PWMCTL,
+ .div_reg = CM_PWMDIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+ .is_mash_clock = true),
+ [BCM2835_CLOCK_SLIM] = REGISTER_PER_CLK(
+ .name = "slim",
+ .ctl_reg = CM_SLIMCTL,
+ .div_reg = CM_SLIMDIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+ .is_mash_clock = true),
+ [BCM2835_CLOCK_SMI] = REGISTER_PER_CLK(
+ .name = "smi",
+ .ctl_reg = CM_SMICTL,
+ .div_reg = CM_SMIDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_UART] = REGISTER_PER_CLK(
+ .name = "uart",
+ .ctl_reg = CM_UARTCTL,
+ .div_reg = CM_UARTDIV,
+ .int_bits = 10,
+ .frac_bits = 12),
+
+ /* TV encoder clock. Only operating frequency is 108Mhz. */
+ [BCM2835_CLOCK_VEC] = REGISTER_PER_CLK(
+ .name = "vec",
+ .ctl_reg = CM_VECCTL,
+ .div_reg = CM_VECDIV,
+ .int_bits = 4,
+ .frac_bits = 0),
+
+ /* dsi clocks */
+ [BCM2835_CLOCK_DSI0E] = REGISTER_PER_CLK(
+ .name = "dsi0e",
+ .ctl_reg = CM_DSI0ECTL,
+ .div_reg = CM_DSI0EDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+ [BCM2835_CLOCK_DSI1E] = REGISTER_PER_CLK(
+ .name = "dsi1e",
+ .ctl_reg = CM_DSI1ECTL,
+ .div_reg = CM_DSI1EDIV,
+ .int_bits = 4,
+ .frac_bits = 8),
+
+ /* the gates */
+
+ /*
+ * CM_PERIICTL (and CM_PERIACTL, CM_SYSCTL and CM_VPUCTL if
+ * you have the debug bit set in the power manager, which we
+ * don't bother exposing) are individual gates off of the
+ * non-stop vpu clock.
+ */
+ [BCM2835_CLOCK_PERI_IMAGE] = REGISTER_GATE(
+ .name = "peri_image",
+ .parent = "vpu",
+ .ctl_reg = CM_PERIICTL),
+};
+
static int bcm2835_clk_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct clk **clks;
struct bcm2835_cprman *cprman;
struct resource *res;
+ const struct bcm2835_clk_desc *desc;
+ const size_t asize = ARRAY_SIZE(clk_desc_array);
+ size_t i;
- cprman = devm_kzalloc(dev, sizeof(*cprman), GFP_KERNEL);
+ cprman = devm_kzalloc(dev,
+ sizeof(*cprman) + asize * sizeof(*clks),
+ GFP_KERNEL);
if (!cprman)
return -ENOMEM;
@@ -1525,80 +1815,15 @@ static int bcm2835_clk_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, cprman);
- cprman->onecell.clk_num = BCM2835_CLOCK_COUNT;
+ cprman->onecell.clk_num = asize;
cprman->onecell.clks = cprman->clks;
clks = cprman->clks;
- clks[BCM2835_PLLA] = bcm2835_register_pll(cprman, &bcm2835_plla_data);
- clks[BCM2835_PLLB] = bcm2835_register_pll(cprman, &bcm2835_pllb_data);
- clks[BCM2835_PLLC] = bcm2835_register_pll(cprman, &bcm2835_pllc_data);
- clks[BCM2835_PLLD] = bcm2835_register_pll(cprman, &bcm2835_plld_data);
- clks[BCM2835_PLLH] = bcm2835_register_pll(cprman, &bcm2835_pllh_data);
-
- clks[BCM2835_PLLA_CORE] =
- bcm2835_register_pll_divider(cprman, &bcm2835_plla_core_data);
- clks[BCM2835_PLLA_PER] =
- bcm2835_register_pll_divider(cprman, &bcm2835_plla_per_data);
- clks[BCM2835_PLLC_CORE0] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllc_core0_data);
- clks[BCM2835_PLLC_CORE1] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllc_core1_data);
- clks[BCM2835_PLLC_CORE2] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllc_core2_data);
- clks[BCM2835_PLLC_PER] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllc_per_data);
- clks[BCM2835_PLLD_CORE] =
- bcm2835_register_pll_divider(cprman, &bcm2835_plld_core_data);
- clks[BCM2835_PLLD_PER] =
- bcm2835_register_pll_divider(cprman, &bcm2835_plld_per_data);
- clks[BCM2835_PLLH_RCAL] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllh_rcal_data);
- clks[BCM2835_PLLH_AUX] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllh_aux_data);
- clks[BCM2835_PLLH_PIX] =
- bcm2835_register_pll_divider(cprman, &bcm2835_pllh_pix_data);
-
- clks[BCM2835_CLOCK_TIMER] =
- bcm2835_register_clock(cprman, &bcm2835_clock_timer_data);
- clks[BCM2835_CLOCK_OTP] =
- bcm2835_register_clock(cprman, &bcm2835_clock_otp_data);
- clks[BCM2835_CLOCK_TSENS] =
- bcm2835_register_clock(cprman, &bcm2835_clock_tsens_data);
- clks[BCM2835_CLOCK_VPU] =
- bcm2835_register_clock(cprman, &bcm2835_clock_vpu_data);
- clks[BCM2835_CLOCK_V3D] =
- bcm2835_register_clock(cprman, &bcm2835_clock_v3d_data);
- clks[BCM2835_CLOCK_ISP] =
- bcm2835_register_clock(cprman, &bcm2835_clock_isp_data);
- clks[BCM2835_CLOCK_H264] =
- bcm2835_register_clock(cprman, &bcm2835_clock_h264_data);
- clks[BCM2835_CLOCK_V3D] =
- bcm2835_register_clock(cprman, &bcm2835_clock_v3d_data);
- clks[BCM2835_CLOCK_SDRAM] =
- bcm2835_register_clock(cprman, &bcm2835_clock_sdram_data);
- clks[BCM2835_CLOCK_UART] =
- bcm2835_register_clock(cprman, &bcm2835_clock_uart_data);
- clks[BCM2835_CLOCK_VEC] =
- bcm2835_register_clock(cprman, &bcm2835_clock_vec_data);
- clks[BCM2835_CLOCK_HSM] =
- bcm2835_register_clock(cprman, &bcm2835_clock_hsm_data);
- clks[BCM2835_CLOCK_EMMC] =
- bcm2835_register_clock(cprman, &bcm2835_clock_emmc_data);
-
- /*
- * CM_PERIICTL (and CM_PERIACTL, CM_SYSCTL and CM_VPUCTL if
- * you have the debug bit set in the power manager, which we
- * don't bother exposing) are individual gates off of the
- * non-stop vpu clock.
- */
- clks[BCM2835_CLOCK_PERI_IMAGE] =
- clk_register_gate(dev, "peri_image", "vpu",
- CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE,
- cprman->regs + CM_PERIICTL, CM_GATE_BIT,
- 0, &cprman->regs_lock);
-
- clks[BCM2835_CLOCK_PWM] =
- bcm2835_register_clock(cprman, &bcm2835_clock_pwm_data);
+ for (i = 0; i < asize; i++) {
+ desc = &clk_desc_array[i];
+ if (desc->clk_register && desc->data)
+ clks[i] = desc->clk_register(cprman, desc->data);
+ }
return of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
&cprman->onecell);
diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 1f903e1f86a2..4d4b5aba397d 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -151,6 +151,33 @@ static int clk_composite_set_rate(struct clk_hw *hw, unsigned long rate,
return rate_ops->set_rate(rate_hw, rate, parent_rate);
}
+static int clk_composite_set_rate_and_parent(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long parent_rate,
+ u8 index)
+{
+ struct clk_composite *composite = to_clk_composite(hw);
+ const struct clk_ops *rate_ops = composite->rate_ops;
+ const struct clk_ops *mux_ops = composite->mux_ops;
+ struct clk_hw *rate_hw = composite->rate_hw;
+ struct clk_hw *mux_hw = composite->mux_hw;
+ unsigned long temp_rate;
+
+ __clk_hw_set_clk(rate_hw, hw);
+ __clk_hw_set_clk(mux_hw, hw);
+
+ temp_rate = rate_ops->recalc_rate(rate_hw, parent_rate);
+ if (temp_rate > rate) {
+ rate_ops->set_rate(rate_hw, rate, parent_rate);
+ mux_ops->set_parent(mux_hw, index);
+ } else {
+ mux_ops->set_parent(mux_hw, index);
+ rate_ops->set_rate(rate_hw, rate, parent_rate);
+ }
+
+ return 0;
+}
+
static int clk_composite_is_enabled(struct clk_hw *hw)
{
struct clk_composite *composite = to_clk_composite(hw);
@@ -250,6 +277,12 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
composite->rate_ops = rate_ops;
}
+ if (mux_hw && mux_ops && rate_hw && rate_ops) {
+ if (mux_ops->set_parent && rate_ops->set_rate)
+ clk_composite_ops->set_rate_and_parent =
+ clk_composite_set_rate_and_parent;
+ }
+
if (gate_hw && gate_ops) {
if (!gate_ops->is_enabled || !gate_ops->enable ||
!gate_ops->disable) {
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index fb74dc1f7520..9f77cc67cdc3 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -574,6 +574,9 @@ static void clk_core_unprepare(struct clk_core *core)
if (WARN_ON(core->prepare_count == 0))
return;
+ if (WARN_ON(core->prepare_count == 1 && core->flags & CLK_IS_CRITICAL))
+ return;
+
if (--core->prepare_count > 0)
return;
@@ -679,6 +682,9 @@ static void clk_core_disable(struct clk_core *core)
if (WARN_ON(core->enable_count == 0))
return;
+ if (WARN_ON(core->enable_count == 1 && core->flags & CLK_IS_CRITICAL))
+ return;
+
if (--core->enable_count > 0)
return;
@@ -2397,6 +2403,11 @@ static int __clk_core_init(struct clk_core *core)
if (core->ops->init)
core->ops->init(core->hw);
+ if (core->flags & CLK_IS_CRITICAL) {
+ clk_core_prepare(core);
+ clk_core_enable(core);
+ }
+
kref_init(&core->ref);
out:
clk_prepare_unlock();
@@ -3127,6 +3138,41 @@ static int parent_ready(struct device_node *np)
}
/**
+ * of_clk_detect_critical() - set CLK_IS_CRITICAL flag from Device Tree
+ * @np: Device node pointer associated with clock provider
+ * @index: clock index
+ * @flags: pointer to clk_core->flags
+ *
+ * Detects if the clock-critical property exists and, if so, sets the
+ * corresponding CLK_IS_CRITICAL flag.
+ *
+ * Do not use this function. It exists only for legacy Device Tree
+ * bindings, such as the one-clock-per-node style that are outdated.
+ * Those bindings typically put all clock data into .dts and the Linux
+ * driver has no clock data, thus making it impossible to set this flag
+ * correctly from the driver. Only those drivers may call
+ * of_clk_detect_critical from their setup functions.
+ *
+ * Return: error code or zero on success
+ */
+int of_clk_detect_critical(struct device_node *np,
+ int index, unsigned long *flags)
+{
+ struct property *prop;
+ const __be32 *cur;
+ uint32_t idx;
+
+ if (!np || !flags)
+ return -EINVAL;
+
+ of_property_for_each_u32(np, "clock-critical", prop, cur, idx)
+ if (index == idx)
+ *flags |= CLK_IS_CRITICAL;
+
+ return 0;
+}
+
+/**
* of_clk_init() - Scan and init clock providers from the DT
* @matches: array of compatible values and init functions for providers.
*
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 9e9fe4b19ac4..309049d41f1b 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -57,7 +57,7 @@ static int mtk_reset(struct reset_controller_dev *rcdev,
return mtk_reset_deassert(rcdev, id);
}
-static struct reset_control_ops mtk_reset_ops = {
+static const struct reset_control_ops mtk_reset_ops = {
.assert = mtk_reset_assert,
.deassert = mtk_reset_deassert,
.reset = mtk_reset,
diff --git a/drivers/clk/mmp/reset.c b/drivers/clk/mmp/reset.c
index b54da1fe73f0..b4e4d6aa2631 100644
--- a/drivers/clk/mmp/reset.c
+++ b/drivers/clk/mmp/reset.c
@@ -74,7 +74,7 @@ static int mmp_clk_reset_deassert(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops mmp_clk_reset_ops = {
+static const struct reset_control_ops mmp_clk_reset_ops = {
.assert = mmp_clk_reset_assert,
.deassert = mmp_clk_reset_deassert,
};
diff --git a/drivers/clk/qcom/gcc-ipq4019.c b/drivers/clk/qcom/gcc-ipq4019.c
index 5428efb9fbf5..3cd1af0af0d9 100644
--- a/drivers/clk/qcom/gcc-ipq4019.c
+++ b/drivers/clk/qcom/gcc-ipq4019.c
@@ -129,20 +129,10 @@ static const char * const gcc_xo_ddr_500_200[] = {
};
#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
-#define P_XO 0
-#define FE_PLL_200 1
-#define FE_PLL_500 2
-#define DDRC_PLL_666 3
-
-#define DDRC_PLL_666_SDCC 1
-#define FE_PLL_125_DLY 1
-
-#define FE_PLL_WCSS2G 1
-#define FE_PLL_WCSS5G 1
static const struct freq_tbl ftbl_gcc_audio_pwm_clk[] = {
F(48000000, P_XO, 1, 0, 0),
- F(200000000, FE_PLL_200, 1, 0, 0),
+ F(200000000, P_FEPLL200, 1, 0, 0),
{ }
};
@@ -334,15 +324,15 @@ static struct clk_branch gcc_blsp1_qup2_spi_apps_clk = {
};
static const struct freq_tbl ftbl_gcc_blsp1_uart1_2_apps_clk[] = {
- F(1843200, FE_PLL_200, 1, 144, 15625),
- F(3686400, FE_PLL_200, 1, 288, 15625),
- F(7372800, FE_PLL_200, 1, 576, 15625),
- F(14745600, FE_PLL_200, 1, 1152, 15625),
- F(16000000, FE_PLL_200, 1, 2, 25),
+ F(1843200, P_FEPLL200, 1, 144, 15625),
+ F(3686400, P_FEPLL200, 1, 288, 15625),
+ F(7372800, P_FEPLL200, 1, 576, 15625),
+ F(14745600, P_FEPLL200, 1, 1152, 15625),
+ F(16000000, P_FEPLL200, 1, 2, 25),
F(24000000, P_XO, 1, 1, 2),
- F(32000000, FE_PLL_200, 1, 4, 25),
- F(40000000, FE_PLL_200, 1, 1, 5),
- F(46400000, FE_PLL_200, 1, 29, 125),
+ F(32000000, P_FEPLL200, 1, 4, 25),
+ F(40000000, P_FEPLL200, 1, 1, 5),
+ F(46400000, P_FEPLL200, 1, 29, 125),
F(48000000, P_XO, 1, 0, 0),
{ }
};
@@ -410,9 +400,9 @@ static struct clk_branch gcc_blsp1_uart2_apps_clk = {
};
static const struct freq_tbl ftbl_gcc_gp_clk[] = {
- F(1250000, FE_PLL_200, 1, 16, 0),
- F(2500000, FE_PLL_200, 1, 8, 0),
- F(5000000, FE_PLL_200, 1, 4, 0),
+ F(1250000, P_FEPLL200, 1, 16, 0),
+ F(2500000, P_FEPLL200, 1, 8, 0),
+ F(5000000, P_FEPLL200, 1, 4, 0),
{ }
};
@@ -512,11 +502,11 @@ static struct clk_branch gcc_gp3_clk = {
static const struct freq_tbl ftbl_gcc_sdcc1_apps_clk[] = {
F(144000, P_XO, 1, 3, 240),
F(400000, P_XO, 1, 1, 0),
- F(20000000, FE_PLL_500, 1, 1, 25),
- F(25000000, FE_PLL_500, 1, 1, 20),
- F(50000000, FE_PLL_500, 1, 1, 10),
- F(100000000, FE_PLL_500, 1, 1, 5),
- F(193000000, DDRC_PLL_666_SDCC, 1, 0, 0),
+ F(20000000, P_FEPLL500, 1, 1, 25),
+ F(25000000, P_FEPLL500, 1, 1, 20),
+ F(50000000, P_FEPLL500, 1, 1, 10),
+ F(100000000, P_FEPLL500, 1, 1, 5),
+ F(193000000, P_DDRPLL, 1, 0, 0),
{ }
};
@@ -536,9 +526,9 @@ static struct clk_rcg2 sdcc1_apps_clk_src = {
static const struct freq_tbl ftbl_gcc_apps_clk[] = {
F(48000000, P_XO, 1, 0, 0),
- F(200000000, FE_PLL_200, 1, 0, 0),
- F(500000000, FE_PLL_500, 1, 0, 0),
- F(626000000, DDRC_PLL_666, 1, 0, 0),
+ F(200000000, P_FEPLL200, 1, 0, 0),
+ F(500000000, P_FEPLL500, 1, 0, 0),
+ F(626000000, P_DDRPLLAPSS, 1, 0, 0),
{ }
};
@@ -557,7 +547,7 @@ static struct clk_rcg2 apps_clk_src = {
static const struct freq_tbl ftbl_gcc_apps_ahb_clk[] = {
F(48000000, P_XO, 1, 0, 0),
- F(100000000, FE_PLL_200, 2, 0, 0),
+ F(100000000, P_FEPLL200, 2, 0, 0),
{ }
};
@@ -940,7 +930,7 @@ static struct clk_branch gcc_usb2_mock_utmi_clk = {
};
static const struct freq_tbl ftbl_gcc_usb30_mock_utmi_clk[] = {
- F(2000000, FE_PLL_200, 10, 0, 0),
+ F(2000000, P_FEPLL200, 10, 0, 0),
{ }
};
@@ -1007,7 +997,7 @@ static struct clk_branch gcc_usb3_mock_utmi_clk = {
};
static const struct freq_tbl ftbl_gcc_fephy_dly_clk[] = {
- F(125000000, FE_PLL_125_DLY, 1, 0, 0),
+ F(125000000, P_FEPLL125DLY, 1, 0, 0),
{ }
};
@@ -1027,7 +1017,7 @@ static struct clk_rcg2 fephy_125m_dly_clk_src = {
static const struct freq_tbl ftbl_gcc_wcss2g_clk[] = {
F(48000000, P_XO, 1, 0, 0),
- F(250000000, FE_PLL_WCSS2G, 1, 0, 0),
+ F(250000000, P_FEPLLWCSS2G, 1, 0, 0),
{ }
};
@@ -1097,7 +1087,7 @@ static struct clk_branch gcc_wcss2g_rtc_clk = {
static const struct freq_tbl ftbl_gcc_wcss5g_clk[] = {
F(48000000, P_XO, 1, 0, 0),
- F(250000000, FE_PLL_WCSS5G, 1, 0, 0),
+ F(250000000, P_FEPLLWCSS5G, 1, 0, 0),
{ }
};
@@ -1325,6 +1315,16 @@ MODULE_DEVICE_TABLE(of, gcc_ipq4019_match_table);
static int gcc_ipq4019_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
+
+ clk_register_fixed_rate(dev, "fepll125", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "fepll125dly", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "fepllwcss2g", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "fepllwcss5g", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "fepll200", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "fepll500", "xo", 0, 200000000);
+ clk_register_fixed_rate(dev, "ddrpllapss", "xo", 0, 666000000);
+
return qcom_cc_probe(pdev, &gcc_ipq4019_desc);
}
diff --git a/drivers/clk/qcom/reset.c b/drivers/clk/qcom/reset.c
index 6c977d3a8590..0324d8daab9b 100644
--- a/drivers/clk/qcom/reset.c
+++ b/drivers/clk/qcom/reset.c
@@ -55,7 +55,7 @@ qcom_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
return regmap_update_bits(rst->regmap, map->reg, mask, 0);
}
-struct reset_control_ops qcom_reset_ops = {
+const struct reset_control_ops qcom_reset_ops = {
.reset = qcom_reset,
.assert = qcom_reset_assert,
.deassert = qcom_reset_deassert,
diff --git a/drivers/clk/qcom/reset.h b/drivers/clk/qcom/reset.h
index 0e11e2130f97..cda877927d43 100644
--- a/drivers/clk/qcom/reset.h
+++ b/drivers/clk/qcom/reset.h
@@ -32,6 +32,6 @@ struct qcom_reset_controller {
#define to_qcom_reset_controller(r) \
container_of(r, struct qcom_reset_controller, rcdev);
-extern struct reset_control_ops qcom_reset_ops;
+extern const struct reset_control_ops qcom_reset_ops;
#endif
diff --git a/drivers/clk/rockchip/softrst.c b/drivers/clk/rockchip/softrst.c
index 552f7bb15bc5..21218987bbc3 100644
--- a/drivers/clk/rockchip/softrst.c
+++ b/drivers/clk/rockchip/softrst.c
@@ -81,7 +81,7 @@ static int rockchip_softrst_deassert(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops rockchip_softrst_ops = {
+static const struct reset_control_ops rockchip_softrst_ops = {
.assert = rockchip_softrst_assert,
.deassert = rockchip_softrst_deassert,
};
diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c
index 957aae63e7cc..d0c6c9a2d06a 100644
--- a/drivers/clk/sirf/clk-atlas7.c
+++ b/drivers/clk/sirf/clk-atlas7.c
@@ -1423,7 +1423,7 @@ static int atlas7_reset_module(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops atlas7_rst_ops = {
+static const struct reset_control_ops atlas7_rst_ops = {
.reset = atlas7_reset_module,
};
diff --git a/drivers/clk/sunxi/clk-a10-ve.c b/drivers/clk/sunxi/clk-a10-ve.c
index 044c1717b762..d9ea22ec4e25 100644
--- a/drivers/clk/sunxi/clk-a10-ve.c
+++ b/drivers/clk/sunxi/clk-a10-ve.c
@@ -85,7 +85,7 @@ static int sunxi_ve_of_xlate(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops sunxi_ve_reset_ops = {
+static const struct reset_control_ops sunxi_ve_reset_ops = {
.assert = sunxi_ve_reset_assert,
.deassert = sunxi_ve_reset_deassert,
};
diff --git a/drivers/clk/sunxi/clk-sun9i-mmc.c b/drivers/clk/sunxi/clk-sun9i-mmc.c
index a9b176139aca..028dd832a39f 100644
--- a/drivers/clk/sunxi/clk-sun9i-mmc.c
+++ b/drivers/clk/sunxi/clk-sun9i-mmc.c
@@ -83,7 +83,7 @@ static int sun9i_mmc_reset_deassert(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops sun9i_mmc_reset_ops = {
+static const struct reset_control_ops sun9i_mmc_reset_ops = {
.assert = sun9i_mmc_reset_assert,
.deassert = sun9i_mmc_reset_deassert,
};
diff --git a/drivers/clk/sunxi/clk-usb.c b/drivers/clk/sunxi/clk-usb.c
index 5432b1c198a4..fe0c3d169377 100644
--- a/drivers/clk/sunxi/clk-usb.c
+++ b/drivers/clk/sunxi/clk-usb.c
@@ -76,7 +76,7 @@ static int sunxi_usb_reset_deassert(struct reset_controller_dev *rcdev,
return 0;
}
-static struct reset_control_ops sunxi_usb_reset_ops = {
+static const struct reset_control_ops sunxi_usb_reset_ops = {
.assert = sunxi_usb_reset_assert,
.deassert = sunxi_usb_reset_deassert,
};
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index 2a3a4fe803d6..f60fe2e344ca 100644
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -271,7 +271,7 @@ void __init tegra_init_from_table(struct tegra_clk_init_table *tbl,
}
}
-static struct reset_control_ops rst_ops = {
+static const struct reset_control_ops rst_ops = {
.assert = tegra_clk_rst_assert,
.deassert = tegra_clk_rst_deassert,
};
diff --git a/include/dt-bindings/clock/bcm2835.h b/include/dt-bindings/clock/bcm2835.h
index 61f1d20c2a67..360e00cefd35 100644
--- a/include/dt-bindings/clock/bcm2835.h
+++ b/include/dt-bindings/clock/bcm2835.h
@@ -44,5 +44,23 @@
#define BCM2835_CLOCK_EMMC 28
#define BCM2835_CLOCK_PERI_IMAGE 29
#define BCM2835_CLOCK_PWM 30
+#define BCM2835_CLOCK_PCM 31
-#define BCM2835_CLOCK_COUNT 31
+#define BCM2835_PLLA_DSI0 32
+#define BCM2835_PLLA_CCP2 33
+#define BCM2835_PLLD_DSI0 34
+#define BCM2835_PLLD_DSI1 35
+
+#define BCM2835_CLOCK_AVEO 36
+#define BCM2835_CLOCK_DFT 37
+#define BCM2835_CLOCK_GP0 38
+#define BCM2835_CLOCK_GP1 39
+#define BCM2835_CLOCK_GP2 40
+#define BCM2835_CLOCK_SLIM 41
+#define BCM2835_CLOCK_SMI 42
+#define BCM2835_CLOCK_TEC 43
+#define BCM2835_CLOCK_DPI 44
+#define BCM2835_CLOCK_CAM0 45
+#define BCM2835_CLOCK_CAM1 46
+#define BCM2835_CLOCK_DSI0E 47
+#define BCM2835_CLOCK_DSI1E 48
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index da95258127aa..156286445a25 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -32,6 +32,7 @@
#define CLK_GET_ACCURACY_NOCACHE BIT(8) /* do not use the cached clk accuracy */
#define CLK_RECALC_NEW_RATES BIT(9) /* recalc rates after notifications */
#define CLK_SET_RATE_UNGATE BIT(10) /* clock needs to run to set rate */
+#define CLK_IS_CRITICAL BIT(11) /* do not gate, ever */
struct clk;
struct clk_hw;
@@ -720,7 +721,8 @@ unsigned int of_clk_get_parent_count(struct device_node *np);
int of_clk_parent_fill(struct device_node *np, const char **parents,
unsigned int size);
const char *of_clk_get_parent_name(struct device_node *np, int index);
-
+int of_clk_detect_critical(struct device_node *np, int index,
+ unsigned long *flags);
void of_clk_init(const struct of_device_id *matches);
#else /* !CONFIG_OF */
@@ -757,6 +759,11 @@ static inline const char *of_clk_get_parent_name(struct device_node *np,
{
return NULL;
}
+static inline int of_clk_detect_critical(struct device_node *np, int index,
+ unsigned long *flags)
+{
+ return 0;
+}
static inline void of_clk_init(const struct of_device_id *matches) {}
#endif /* CONFIG_OF */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.