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authorMichael Turquette <mturquette@linaro.org>2014-11-28 21:00:16 -0800
committerMichael Turquette <mturquette@linaro.org>2014-11-28 21:00:16 -0800
commitb572b5f821abb350439609f367bd35961f53a28e (patch)
tree380542ae6d32a0f32763062af3194d9628560123 /drivers/clk
parent250d07d1e782e68e9b2e7b637703b3739f0ec1b1 (diff)
parent89bf26cbc1a09476c4c4740d16a0ffdfa2192b9c (diff)
downloadlinux-b572b5f821abb350439609f367bd35961f53a28e.tar.gz
Merge tag 'v3.19-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
- clock phase setting capability for the rk3288 mmc clocks - pll init to allow syncing to actual rate table values - some more exported clocks - fixes for some clocks (typos etc) all of them not yet used in actual drivers
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/rockchip/Makefile1
-rw-r--r--drivers/clk/rockchip/clk-mmc-phase.c154
-rw-r--r--drivers/clk/rockchip/clk-pll.c81
-rw-r--r--drivers/clk/rockchip/clk-rk3188.c37
-rw-r--r--drivers/clk/rockchip/clk-rk3288.c32
-rw-r--r--drivers/clk/rockchip/clk.c11
-rw-r--r--drivers/clk/rockchip/clk.h36
7 files changed, 302 insertions, 50 deletions
diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile
index bd8514d6363..2714097f90d 100644
--- a/drivers/clk/rockchip/Makefile
+++ b/drivers/clk/rockchip/Makefile
@@ -6,6 +6,7 @@ obj-y += clk-rockchip.o
obj-y += clk.o
obj-y += clk-pll.o
obj-y += clk-cpu.o
+obj-y += clk-mmc-phase.o
obj-$(CONFIG_RESET_CONTROLLER) += softrst.o
obj-y += clk-rk3188.o
diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c
new file mode 100644
index 00000000000..c842e3b60f2
--- /dev/null
+++ b/drivers/clk/rockchip/clk-mmc-phase.c
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2014 Google, Inc
+ * Author: Alexandru M Stan <amstan@chromium.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/slab.h>
+#include <linux/clk-provider.h>
+#include "clk.h"
+
+struct rockchip_mmc_clock {
+ struct clk_hw hw;
+ void __iomem *reg;
+ int id;
+ int shift;
+};
+
+#define to_mmc_clock(_hw) container_of(_hw, struct rockchip_mmc_clock, hw)
+
+#define RK3288_MMC_CLKGEN_DIV 2
+
+static unsigned long rockchip_mmc_recalc(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ return parent_rate / RK3288_MMC_CLKGEN_DIV;
+}
+
+#define ROCKCHIP_MMC_DELAY_SEL BIT(10)
+#define ROCKCHIP_MMC_DEGREE_MASK 0x3
+#define ROCKCHIP_MMC_DELAYNUM_OFFSET 2
+#define ROCKCHIP_MMC_DELAYNUM_MASK (0xff << ROCKCHIP_MMC_DELAYNUM_OFFSET)
+
+#define PSECS_PER_SEC 1000000000000LL
+
+/*
+ * Each fine delay is between 40ps-80ps. Assume each fine delay is 60ps to
+ * simplify calculations. So 45degs could be anywhere between 33deg and 66deg.
+ */
+#define ROCKCHIP_MMC_DELAY_ELEMENT_PSEC 60
+
+static int rockchip_mmc_get_phase(struct clk_hw *hw)
+{
+ struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw);
+ unsigned long rate = clk_get_rate(hw->clk);
+ u32 raw_value;
+ u16 degrees;
+ u32 delay_num = 0;
+
+ raw_value = readl(mmc_clock->reg) >> (mmc_clock->shift);
+
+ degrees = (raw_value & ROCKCHIP_MMC_DEGREE_MASK) * 90;
+
+ if (raw_value & ROCKCHIP_MMC_DELAY_SEL) {
+ /* degrees/delaynum * 10000 */
+ unsigned long factor = (ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10) *
+ 36 * (rate / 1000000);
+
+ delay_num = (raw_value & ROCKCHIP_MMC_DELAYNUM_MASK);
+ delay_num >>= ROCKCHIP_MMC_DELAYNUM_OFFSET;
+ degrees += delay_num * factor / 10000;
+ }
+
+ return degrees % 360;
+}
+
+static int rockchip_mmc_set_phase(struct clk_hw *hw, int degrees)
+{
+ struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw);
+ unsigned long rate = clk_get_rate(hw->clk);
+ u8 nineties, remainder;
+ u8 delay_num;
+ u32 raw_value;
+ u64 delay;
+
+ /* allow 22 to be 22.5 */
+ degrees++;
+ /* floor to 22.5 increment */
+ degrees -= ((degrees) * 10 % 225) / 10;
+
+ nineties = degrees / 90;
+ /* 22.5 multiples */
+ remainder = (degrees % 90) / 22;
+
+ delay = PSECS_PER_SEC;
+ do_div(delay, rate);
+ /* / 360 / 22.5 */
+ do_div(delay, 16);
+ do_div(delay, ROCKCHIP_MMC_DELAY_ELEMENT_PSEC);
+
+ delay *= remainder;
+ delay_num = (u8) min(delay, 255ULL);
+
+ raw_value = delay_num ? ROCKCHIP_MMC_DELAY_SEL : 0;
+ raw_value |= delay_num << ROCKCHIP_MMC_DELAYNUM_OFFSET;
+ raw_value |= nineties;
+ writel(HIWORD_UPDATE(raw_value, 0x07ff, mmc_clock->shift), mmc_clock->reg);
+
+ pr_debug("%s->set_phase(%d) delay_nums=%u reg[0x%p]=0x%03x actual_degrees=%d\n",
+ __clk_get_name(hw->clk), degrees, delay_num,
+ mmc_clock->reg, raw_value>>(mmc_clock->shift),
+ rockchip_mmc_get_phase(hw)
+ );
+
+ return 0;
+}
+
+static const struct clk_ops rockchip_mmc_clk_ops = {
+ .recalc_rate = rockchip_mmc_recalc,
+ .get_phase = rockchip_mmc_get_phase,
+ .set_phase = rockchip_mmc_set_phase,
+};
+
+struct clk *rockchip_clk_register_mmc(const char *name,
+ const char **parent_names, u8 num_parents,
+ void __iomem *reg, int shift)
+{
+ struct clk_init_data init;
+ struct rockchip_mmc_clock *mmc_clock;
+ struct clk *clk;
+
+ mmc_clock = kmalloc(sizeof(*mmc_clock), GFP_KERNEL);
+ if (!mmc_clock)
+ return NULL;
+
+ init.num_parents = num_parents;
+ init.parent_names = parent_names;
+ init.ops = &rockchip_mmc_clk_ops;
+
+ mmc_clock->hw.init = &init;
+ mmc_clock->reg = reg;
+ mmc_clock->shift = shift;
+
+ if (name)
+ init.name = name;
+
+ clk = clk_register(NULL, &mmc_clock->hw);
+ if (IS_ERR(clk))
+ goto err_free;
+
+ return clk;
+
+err_free:
+ kfree(mmc_clock);
+ return NULL;
+}
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index a3e886a3848..f8d3baf275b 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -39,6 +39,7 @@ struct rockchip_clk_pll {
int lock_offset;
unsigned int lock_shift;
enum rockchip_pll_type type;
+ u8 flags;
const struct rockchip_pll_rate_table *rate_table;
unsigned int rate_count;
spinlock_t *lock;
@@ -257,6 +258,55 @@ static int rockchip_rk3066_pll_is_enabled(struct clk_hw *hw)
return !(pllcon & RK3066_PLLCON3_PWRDOWN);
}
+static void rockchip_rk3066_pll_init(struct clk_hw *hw)
+{
+ struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
+ const struct rockchip_pll_rate_table *rate;
+ unsigned int nf, nr, no, bwadj;
+ unsigned long drate;
+ u32 pllcon;
+
+ if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE))
+ return;
+
+ drate = __clk_get_rate(hw->clk);
+ rate = rockchip_get_pll_settings(pll, drate);
+
+ /* when no rate setting for the current rate, rely on clk_set_rate */
+ if (!rate)
+ return;
+
+ pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(0));
+ nr = ((pllcon >> RK3066_PLLCON0_NR_SHIFT) & RK3066_PLLCON0_NR_MASK) + 1;
+ no = ((pllcon >> RK3066_PLLCON0_OD_SHIFT) & RK3066_PLLCON0_OD_MASK) + 1;
+
+ pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(1));
+ nf = ((pllcon >> RK3066_PLLCON1_NF_SHIFT) & RK3066_PLLCON1_NF_MASK) + 1;
+
+ pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(2));
+ bwadj = (pllcon >> RK3066_PLLCON2_BWADJ_SHIFT) & RK3066_PLLCON2_BWADJ_MASK;
+
+ pr_debug("%s: pll %s@%lu: nr (%d:%d); no (%d:%d); nf(%d:%d), bwadj(%d:%d)\n",
+ __func__, __clk_get_name(hw->clk), drate, rate->nr, nr,
+ rate->no, no, rate->nf, nf, rate->bwadj, bwadj);
+ if (rate->nr != nr || rate->no != no || rate->nf != nf
+ || rate->bwadj != bwadj) {
+ struct clk *parent = __clk_get_parent(hw->clk);
+ unsigned long prate;
+
+ if (!parent) {
+ pr_warn("%s: parent of %s not available\n",
+ __func__, __clk_get_name(hw->clk));
+ return;
+ }
+
+ pr_debug("%s: pll %s: rate params do not match rate table, adjusting\n",
+ __func__, __clk_get_name(hw->clk));
+ prate = __clk_get_rate(parent);
+ rockchip_rk3066_pll_set_rate(hw, drate, prate);
+ }
+}
+
static const struct clk_ops rockchip_rk3066_pll_clk_norate_ops = {
.recalc_rate = rockchip_rk3066_pll_recalc_rate,
.enable = rockchip_rk3066_pll_enable,
@@ -271,6 +321,7 @@ static const struct clk_ops rockchip_rk3066_pll_clk_ops = {
.enable = rockchip_rk3066_pll_enable,
.disable = rockchip_rk3066_pll_disable,
.is_enabled = rockchip_rk3066_pll_is_enabled,
+ .init = rockchip_rk3066_pll_init,
};
/*
@@ -282,7 +333,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
void __iomem *base, int con_offset, int grf_lock_offset,
int lock_shift, int mode_offset, int mode_shift,
struct rockchip_pll_rate_table *rate_table,
- spinlock_t *lock)
+ u8 clk_pll_flags, spinlock_t *lock)
{
const char *pll_parents[3];
struct clk_init_data init;
@@ -345,8 +396,22 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
pll->reg_base = base + con_offset;
pll->lock_offset = grf_lock_offset;
pll->lock_shift = lock_shift;
+ pll->flags = clk_pll_flags;
pll->lock = lock;
+ /* create the mux on top of the real pll */
+ pll->pll_mux_ops = &clk_mux_ops;
+ pll_mux = &pll->pll_mux;
+ pll_mux->reg = base + mode_offset;
+ pll_mux->shift = mode_shift;
+ pll_mux->mask = PLL_MODE_MASK;
+ pll_mux->flags = 0;
+ pll_mux->lock = lock;
+ pll_mux->hw.init = &init;
+
+ if (pll_type == pll_rk3066)
+ pll_mux->flags |= CLK_MUX_HIWORD_MASK;
+
pll_clk = clk_register(NULL, &pll->hw);
if (IS_ERR(pll_clk)) {
pr_err("%s: failed to register pll clock %s : %ld\n",
@@ -355,10 +420,6 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
goto err_pll;
}
- /* create the mux on top of the real pll */
- pll->pll_mux_ops = &clk_mux_ops;
- pll_mux = &pll->pll_mux;
-
/* the actual muxing is xin24m, pll-output, xin32k */
pll_parents[0] = parent_names[0];
pll_parents[1] = pll_name;
@@ -370,16 +431,6 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
init.parent_names = pll_parents;
init.num_parents = ARRAY_SIZE(pll_parents);
- pll_mux->reg = base + mode_offset;
- pll_mux->shift = mode_shift;
- pll_mux->mask = PLL_MODE_MASK;
- pll_mux->flags = 0;
- pll_mux->lock = lock;
- pll_mux->hw.init = &init;
-
- if (pll_type == pll_rk3066)
- pll_mux->flags |= CLK_MUX_HIWORD_MASK;
-
mux_clk = clk_register(NULL, &pll_mux->hw);
if (IS_ERR(mux_clk))
goto err_mux;
diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index f88eb7dacd9..c5407896084 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -212,13 +212,13 @@ PNAME(mux_sclk_macref_p) = { "mac_src", "ext_rmii" };
static struct rockchip_pll_clock rk3188_pll_clks[] __initdata = {
[apll] = PLL(pll_rk3066, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
- RK2928_MODE_CON, 0, 6, rk3188_pll_rates),
+ RK2928_MODE_CON, 0, 6, 0, rk3188_pll_rates),
[dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
- RK2928_MODE_CON, 4, 5, NULL),
+ RK2928_MODE_CON, 4, 5, 0, NULL),
[cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK2928_PLL_CON(8),
- RK2928_MODE_CON, 8, 7, rk3188_pll_rates),
+ RK2928_MODE_CON, 8, 7, ROCKCHIP_PLL_SYNC_RATE, rk3188_pll_rates),
[gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
- RK2928_MODE_CON, 12, 8, rk3188_pll_rates),
+ RK2928_MODE_CON, 12, 8, ROCKCHIP_PLL_SYNC_RATE, rk3188_pll_rates),
};
#define MFLAGS CLK_MUX_HIWORD_MASK
@@ -330,6 +330,15 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = {
RK2928_CLKSEL_CON(24), 8, 8, DFLAGS,
RK2928_CLKGATE_CON(2), 8, GFLAGS),
+ COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0,
+ RK2928_CLKSEL_CON(5), 0, 7, DFLAGS,
+ RK2928_CLKGATE_CON(0), 13, GFLAGS),
+ COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0,
+ RK2928_CLKSEL_CON(9), 0,
+ RK2928_CLKGATE_CON(0), 14, GFLAGS),
+ MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0,
+ RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
+
/*
* Clock-Architecture Diagram 4
*/
@@ -410,7 +419,7 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = {
/* hclk_ahb2apb is part of a clk branch */
GATE(0, "hclk_vio_bus", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 12, GFLAGS),
GATE(HCLK_LCDC0, "hclk_lcdc0", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 1, GFLAGS),
- GATE(HCLK_LCDC1, "hclk_lcdc1", "aclk_cpu", 0, RK2928_CLKGATE_CON(6), 2, GFLAGS),
+ GATE(HCLK_LCDC1, "hclk_lcdc1", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 2, GFLAGS),
GATE(HCLK_CIF0, "hclk_cif0", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 4, GFLAGS),
GATE(HCLK_IPP, "hclk_ipp", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 9, GFLAGS),
GATE(HCLK_RGA, "hclk_rga", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 10, GFLAGS),
@@ -577,14 +586,6 @@ static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = {
RK2928_CLKGATE_CON(0), 12, GFLAGS),
MUX(SCLK_I2S2, "sclk_i2s2", mux_sclk_i2s2_p, 0,
RK2928_CLKSEL_CON(4), 8, 2, MFLAGS),
- COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0,
- RK2928_CLKSEL_CON(5), 0, 7, DFLAGS,
- RK2928_CLKGATE_CON(0), 13, GFLAGS),
- COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0,
- RK2928_CLKSEL_CON(9), 0,
- RK2928_CLKGATE_CON(0), 14, GFLAGS),
- MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0,
- RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
GATE(HCLK_I2S1, "hclk_i2s1", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 3, GFLAGS),
GATE(HCLK_I2S2, "hclk_i2s2", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 4, GFLAGS),
@@ -663,7 +664,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
RK2928_CLKSEL_CON(30), 0, 2, DFLAGS,
RK2928_CLKGATE_CON(3), 6, GFLAGS),
DIV(0, "sclk_hsicphy_12m", "sclk_hsicphy_480m", 0,
- RK2928_CLKGATE_CON(11), 8, 6, DFLAGS),
+ RK2928_CLKSEL_CON(11), 8, 6, DFLAGS),
MUX(0, "i2s_src", mux_pll_src_gpll_cpll_p, 0,
RK2928_CLKSEL_CON(2), 15, 1, MFLAGS),
@@ -675,14 +676,6 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
RK2928_CLKGATE_CON(0), 10, GFLAGS),
MUX(SCLK_I2S0, "sclk_i2s0", mux_sclk_i2s0_p, 0,
RK2928_CLKSEL_CON(3), 8, 2, MFLAGS),
- COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0,
- RK2928_CLKSEL_CON(5), 0, 7, DFLAGS,
- RK2928_CLKGATE_CON(13), 13, GFLAGS),
- COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0,
- RK2928_CLKSEL_CON(9), 0,
- RK2928_CLKGATE_CON(0), 14, GFLAGS),
- MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0,
- RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
GATE(0, "hclk_imem0", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 14, GFLAGS),
GATE(0, "hclk_imem1", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 15, GFLAGS),
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c
index 174589c95e3..ac6be7c0132 100644
--- a/drivers/clk/rockchip/clk-rk3288.c
+++ b/drivers/clk/rockchip/clk-rk3288.c
@@ -202,15 +202,15 @@ PNAME(mux_hsicphy12m_p) = { "hsicphy12m_xin12m", "hsicphy12m_usbphy" };
static struct rockchip_pll_clock rk3288_pll_clks[] __initdata = {
[apll] = PLL(pll_rk3066, PLL_APLL, "apll", mux_pll_p, 0, RK3288_PLL_CON(0),
- RK3288_MODE_CON, 0, 6, rk3288_pll_rates),
+ RK3288_MODE_CON, 0, 6, 0, rk3288_pll_rates),
[dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK3288_PLL_CON(4),
- RK3288_MODE_CON, 4, 5, NULL),
+ RK3288_MODE_CON, 4, 5, 0, NULL),
[cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK3288_PLL_CON(8),
- RK3288_MODE_CON, 8, 7, rk3288_pll_rates),
+ RK3288_MODE_CON, 8, 7, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates),
[gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK3288_PLL_CON(12),
- RK3288_MODE_CON, 12, 8, rk3288_pll_rates),
+ RK3288_MODE_CON, 12, 8, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates),
[npll] = PLL(pll_rk3066, PLL_NPLL, "npll", mux_pll_p, 0, RK3288_PLL_CON(16),
- RK3288_MODE_CON, 14, 9, rk3288_pll_rates),
+ RK3288_MODE_CON, 14, 9, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates),
};
static struct clk_div_table div_hclk_cpu_t[] = {
@@ -308,7 +308,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
RK3288_CLKGATE_CON(4), 2, GFLAGS),
MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(4), 8, 2, MFLAGS),
- COMPOSITE_NODIV(0, "i2s0_clkout", mux_i2s_clkout_p, 0,
+ COMPOSITE_NODIV(SCLK_I2S0_OUT, "i2s0_clkout", mux_i2s_clkout_p, 0,
RK3288_CLKSEL_CON(4), 12, 1, MFLAGS,
RK3288_CLKGATE_CON(4), 0, GFLAGS),
GATE(SCLK_I2S0, "sclk_i2s0", "i2s_pre", CLK_SET_RATE_PARENT,
@@ -486,6 +486,18 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
RK3288_CLKSEL_CON(12), 14, 2, MFLAGS, 8, 6, DFLAGS,
RK3288_CLKGATE_CON(13), 3, GFLAGS),
+ MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3288_SDMMC_CON0, 1),
+ MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3288_SDMMC_CON1, 0),
+
+ MMC(SCLK_SDIO0_DRV, "sdio0_drv", "sclk_sdio0", RK3288_SDIO0_CON0, 1),
+ MMC(SCLK_SDIO0_SAMPLE, "sdio0_sample", "sclk_sdio0", RK3288_SDIO0_CON1, 0),
+
+ MMC(SCLK_SDIO1_DRV, "sdio1_drv", "sclk_sdio1", RK3288_SDIO1_CON0, 1),
+ MMC(SCLK_SDIO1_SAMPLE, "sdio1_sample", "sclk_sdio1", RK3288_SDIO1_CON1, 0),
+
+ MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3288_EMMC_CON0, 1),
+ MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3288_EMMC_CON1, 0),
+
COMPOSITE(0, "sclk_tspout", mux_tspout_p, 0,
RK3288_CLKSEL_CON(35), 14, 2, MFLAGS, 8, 5, DFLAGS,
RK3288_CLKGATE_CON(4), 11, GFLAGS),
@@ -625,10 +637,10 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
GATE(PCLK_TIMER, "pclk_timer", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 1, GFLAGS),
GATE(PCLK_I2C0, "pclk_i2c0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 2, GFLAGS),
GATE(PCLK_I2C2, "pclk_i2c2", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 3, GFLAGS),
- GATE(0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS),
- GATE(0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS),
- GATE(0, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS),
- GATE(0, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS),
+ GATE(PCLK_DDRUPCTL0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS),
+ GATE(PCLK_PUBL0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS),
+ GATE(PCLK_DDRUPCTL1, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS),
+ GATE(PCLK_PUBL1, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS),
GATE(0, "pclk_efuse_1024", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 2, GFLAGS),
GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS),
GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS),
diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index 70559fab36b..20e05bbb3a6 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -197,7 +197,8 @@ void __init rockchip_clk_register_plls(struct rockchip_pll_clock *list,
list->parent_names, list->num_parents,
reg_base, list->con_offset, grf_lock_offset,
list->lock_shift, list->mode_offset,
- list->mode_shift, list->rate_table, &clk_lock);
+ list->mode_shift, list->rate_table,
+ list->pll_flags, &clk_lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n", __func__,
list->name);
@@ -268,6 +269,14 @@ void __init rockchip_clk_register_branches(
list->gate_offset, list->gate_shift,
list->gate_flags, flags, &clk_lock);
break;
+ case branch_mmc:
+ clk = rockchip_clk_register_mmc(
+ list->name,
+ list->parent_names, list->num_parents,
+ reg_base + list->muxdiv_offset,
+ list->div_shift
+ );
+ break;
}
/* none of the cases above matched */
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index 6baf6655b5c..58d2e3bdf22 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -48,6 +48,14 @@
#define RK3288_GLB_SRST_SND 0x1b4
#define RK3288_SOFTRST_CON(x) (x * 0x4 + 0x1b8)
#define RK3288_MISC_CON 0x1e8
+#define RK3288_SDMMC_CON0 0x200
+#define RK3288_SDMMC_CON1 0x204
+#define RK3288_SDIO0_CON0 0x208
+#define RK3288_SDIO0_CON1 0x20c
+#define RK3288_SDIO1_CON0 0x210
+#define RK3288_SDIO1_CON1 0x214
+#define RK3288_EMMC_CON0 0x218
+#define RK3288_EMMC_CON1 0x21c
enum rockchip_pll_type {
pll_rk3066,
@@ -90,7 +98,12 @@ struct rockchip_pll_rate_table {
* @mode_shift: offset inside the mode-register for the mode of this pll.
* @lock_shift: offset inside the lock register for the lock status.
* @type: Type of PLL to be registered.
+ * @pll_flags: hardware-specific flags
* @rate_table: Table of usable pll rates
+ *
+ * Flags:
+ * ROCKCHIP_PLL_SYNC_RATE - check rate parameters to match against the
+ * rate_table parameters and ajust them if necessary.
*/
struct rockchip_pll_clock {
unsigned int id;
@@ -103,11 +116,14 @@ struct rockchip_pll_clock {
int mode_shift;
int lock_shift;
enum rockchip_pll_type type;
+ u8 pll_flags;
struct rockchip_pll_rate_table *rate_table;
};
+#define ROCKCHIP_PLL_SYNC_RATE BIT(0)
+
#define PLL(_type, _id, _name, _pnames, _flags, _con, _mode, _mshift, \
- _lshift, _rtable) \
+ _lshift, _pflags, _rtable) \
{ \
.id = _id, \
.type = _type, \
@@ -119,6 +135,7 @@ struct rockchip_pll_clock {
.mode_offset = _mode, \
.mode_shift = _mshift, \
.lock_shift = _lshift, \
+ .pll_flags = _pflags, \
.rate_table = _rtable, \
}
@@ -127,7 +144,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type,
void __iomem *base, int con_offset, int grf_lock_offset,
int lock_shift, int reg_mode, int mode_shift,
struct rockchip_pll_rate_table *rate_table,
- spinlock_t *lock);
+ u8 clk_pll_flags, spinlock_t *lock);
struct rockchip_cpuclk_clksel {
int reg;
@@ -161,6 +178,10 @@ struct clk *rockchip_clk_register_cpuclk(const char *name,
const struct rockchip_cpuclk_rate_table *rates,
int nrates, void __iomem *reg_base, spinlock_t *lock);
+struct clk *rockchip_clk_register_mmc(const char *name,
+ const char **parent_names, u8 num_parents,
+ void __iomem *reg, int shift);
+
#define PNAME(x) static const char *x[] __initconst
enum rockchip_clk_branch_type {
@@ -169,6 +190,7 @@ enum rockchip_clk_branch_type {
branch_divider,
branch_fraction_divider,
branch_gate,
+ branch_mmc,
};
struct rockchip_clk_branch {
@@ -361,6 +383,16 @@ struct rockchip_clk_branch {
.gate_flags = gf, \
}
+#define MMC(_id, cname, pname, offset, shift) \
+ { \
+ .id = _id, \
+ .branch_type = branch_mmc, \
+ .name = cname, \
+ .parent_names = (const char *[]){ pname }, \
+ .num_parents = 1, \
+ .muxdiv_offset = offset, \
+ .div_shift = shift, \
+ }
void rockchip_clk_init(struct device_node *np, void __iomem *base,
unsigned long nr_clks);