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authorStephen Boyd <sboyd@kernel.org>2024-09-03 14:00:29 -0700
committerStephen Boyd <sboyd@kernel.org>2024-09-03 14:00:29 -0700
commitf37213104a370ca60d9c475519b30c848c6d7d6d (patch)
tree98b230795f7adcefccb97c7eae80f46780d89492 /drivers/clk/renesas
parentb01bf907bd9cdf5810397e9f831c3ecebc4a4ce8 (diff)
parent3aeccbe08171b79f82fb802393a6324c7b732669 (diff)
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Merge tag 'renesas-clk-for-v6.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull more Renesas clk driver updates from Geert Uytterhoeven: - Add USB clocks, resets and power domains on RZ/G3S - Add Generic Timer (GTM), I2C Bus Interface (RIIC), SD/MMC Host Interface (SDHI) and Watchdog Timer (WDT) clocks and resets on RZ/V2H - Miscellaneous fixes and improvements * tag 'renesas-clk-for-v6.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: r9a09g057: Add clock and reset entries for GTM/RIIC/SDHI/WDT clk: renesas: rzv2h: Add support for dynamic switching divider clocks clk: renesas: r9a08g045: Add clocks, resets and power domains for USB dt-bindings: clock: renesas,cpg-clocks: Add top-level constraints
Diffstat (limited to 'drivers/clk/renesas')
-rw-r--r--drivers/clk/renesas/r9a08g045-cpg.c17
-rw-r--r--drivers/clk/renesas/r9a09g057-cpg.c84
-rw-r--r--drivers/clk/renesas/rzv2h-cpg.c165
-rw-r--r--drivers/clk/renesas/rzv2h-cpg.h43
4 files changed, 306 insertions, 3 deletions
diff --git a/drivers/clk/renesas/r9a08g045-cpg.c b/drivers/clk/renesas/r9a08g045-cpg.c
index 213499fc8fb5..1ce40fb51f13 100644
--- a/drivers/clk/renesas/r9a08g045-cpg.c
+++ b/drivers/clk/renesas/r9a08g045-cpg.c
@@ -208,6 +208,10 @@ static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = {
DEF_MOD("sdhi2_imclk2", R9A08G045_SDHI2_IMCLK2, CLK_SD2_DIV4, 0x554, 9),
DEF_MOD("sdhi2_clk_hs", R9A08G045_SDHI2_CLK_HS, R9A08G045_CLK_SD2, 0x554, 10),
DEF_MOD("sdhi2_aclk", R9A08G045_SDHI2_ACLK, R9A08G045_CLK_P1, 0x554, 11),
+ DEF_MOD("usb0_host", R9A08G045_USB_U2H0_HCLK, R9A08G045_CLK_P1, 0x578, 0),
+ DEF_MOD("usb1_host", R9A08G045_USB_U2H1_HCLK, R9A08G045_CLK_P1, 0x578, 1),
+ DEF_MOD("usb0_func", R9A08G045_USB_U2P_EXR_CPUCLK, R9A08G045_CLK_P1, 0x578, 2),
+ DEF_MOD("usb_pclk", R9A08G045_USB_PCLK, R9A08G045_CLK_P1, 0x578, 3),
DEF_COUPLED("eth0_axi", R9A08G045_ETH0_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 0),
DEF_COUPLED("eth0_chi", R9A08G045_ETH0_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 0),
DEF_MOD("eth0_refclk", R9A08G045_ETH0_REFCLK, R9A08G045_CLK_HP, 0x57c, 8),
@@ -233,6 +237,10 @@ static const struct rzg2l_reset r9a08g045_resets[] = {
DEF_RST(R9A08G045_SDHI0_IXRST, 0x854, 0),
DEF_RST(R9A08G045_SDHI1_IXRST, 0x854, 1),
DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2),
+ DEF_RST(R9A08G045_USB_U2H0_HRESETN, 0x878, 0),
+ DEF_RST(R9A08G045_USB_U2H1_HRESETN, 0x878, 1),
+ DEF_RST(R9A08G045_USB_U2P_EXL_SYSRST, 0x878, 2),
+ DEF_RST(R9A08G045_USB_PRESETN, 0x878, 3),
DEF_RST(R9A08G045_ETH0_RST_HW_N, 0x87c, 0),
DEF_RST(R9A08G045_ETH1_RST_HW_N, 0x87c, 1),
DEF_RST(R9A08G045_I2C0_MRST, 0x880, 0),
@@ -280,6 +288,15 @@ static const struct rzg2l_cpg_pm_domain_init_data r9a08g045_pm_domains[] = {
DEF_PD("sdhi2", R9A08G045_PD_SDHI2,
DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(11)),
RZG2L_PD_F_NONE),
+ DEF_PD("usb0", R9A08G045_PD_USB0,
+ DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, GENMASK(6, 5)),
+ RZG2L_PD_F_NONE),
+ DEF_PD("usb1", R9A08G045_PD_USB1,
+ DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(7)),
+ RZG2L_PD_F_NONE),
+ DEF_PD("usb-phy", R9A08G045_PD_USB_PHY,
+ DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(4)),
+ RZG2L_PD_F_NONE),
DEF_PD("eth0", R9A08G045_PD_ETHER0,
DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(2)),
RZG2L_PD_F_NONE),
diff --git a/drivers/clk/renesas/r9a09g057-cpg.c b/drivers/clk/renesas/r9a09g057-cpg.c
index 9722b810e027..3ee32db5c0af 100644
--- a/drivers/clk/renesas/r9a09g057-cpg.c
+++ b/drivers/clk/renesas/r9a09g057-cpg.c
@@ -25,16 +25,31 @@ enum clk_ids {
/* PLL Clocks */
CLK_PLLCM33,
+ CLK_PLLCLN,
CLK_PLLDTY,
CLK_PLLCA55,
/* Internal Core Clocks */
CLK_PLLCM33_DIV16,
+ CLK_PLLCLN_DIV2,
+ CLK_PLLCLN_DIV8,
+ CLK_PLLCLN_DIV16,
+ CLK_PLLDTY_ACPU,
+ CLK_PLLDTY_ACPU_DIV4,
/* Module Clocks */
MOD_CLK_BASE,
};
+static const struct clk_div_table dtable_2_64[] = {
+ {0, 2},
+ {1, 4},
+ {2, 8},
+ {3, 16},
+ {4, 64},
+ {0, 0},
+};
+
static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("audio_extal", CLK_AUDIO_EXTAL),
@@ -43,23 +58,92 @@ static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
/* PLL Clocks */
DEF_FIXED(".pllcm33", CLK_PLLCM33, CLK_QEXTAL, 200, 3),
+ DEF_FIXED(".pllcln", CLK_PLLCLN, CLK_QEXTAL, 200, 3),
DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLL_CONF(0x64)),
/* Internal Core Clocks */
DEF_FIXED(".pllcm33_div16", CLK_PLLCM33_DIV16, CLK_PLLCM33, 1, 16),
+ DEF_FIXED(".pllcln_div2", CLK_PLLCLN_DIV2, CLK_PLLCLN, 1, 2),
+ DEF_FIXED(".pllcln_div8", CLK_PLLCLN_DIV8, CLK_PLLCLN, 1, 8),
+ DEF_FIXED(".pllcln_div16", CLK_PLLCLN_DIV16, CLK_PLLCLN, 1, 16),
+
+ DEF_DDIV(".plldty_acpu", CLK_PLLDTY_ACPU, CLK_PLLDTY, CDDIV0_DIVCTL2, dtable_2_64),
+ DEF_FIXED(".plldty_acpu_div4", CLK_PLLDTY_ACPU_DIV4, CLK_PLLDTY_ACPU, 1, 4),
+
/* Core Clocks */
DEF_FIXED("sys_0_pclk", R9A09G057_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
DEF_FIXED("iotop_0_shclk", R9A09G057_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
};
static const struct rzv2h_mod_clk r9a09g057_mod_clks[] __initconst = {
+ DEF_MOD("gtm_0_pclk", CLK_PLLCM33_DIV16, 4, 3, 2, 3),
+ DEF_MOD("gtm_1_pclk", CLK_PLLCM33_DIV16, 4, 4, 2, 4),
+ DEF_MOD("gtm_2_pclk", CLK_PLLCLN_DIV16, 4, 5, 2, 5),
+ DEF_MOD("gtm_3_pclk", CLK_PLLCLN_DIV16, 4, 6, 2, 6),
+ DEF_MOD("gtm_4_pclk", CLK_PLLCLN_DIV16, 4, 7, 2, 7),
+ DEF_MOD("gtm_5_pclk", CLK_PLLCLN_DIV16, 4, 8, 2, 8),
+ DEF_MOD("gtm_6_pclk", CLK_PLLCLN_DIV16, 4, 9, 2, 9),
+ DEF_MOD("gtm_7_pclk", CLK_PLLCLN_DIV16, 4, 10, 2, 10),
+ DEF_MOD("wdt_0_clkp", CLK_PLLCM33_DIV16, 4, 11, 2, 11),
+ DEF_MOD("wdt_0_clk_loco", CLK_QEXTAL, 4, 12, 2, 12),
+ DEF_MOD("wdt_1_clkp", CLK_PLLCLN_DIV16, 4, 13, 2, 13),
+ DEF_MOD("wdt_1_clk_loco", CLK_QEXTAL, 4, 14, 2, 14),
+ DEF_MOD("wdt_2_clkp", CLK_PLLCLN_DIV16, 4, 15, 2, 15),
+ DEF_MOD("wdt_2_clk_loco", CLK_QEXTAL, 5, 0, 2, 16),
+ DEF_MOD("wdt_3_clkp", CLK_PLLCLN_DIV16, 5, 1, 2, 17),
+ DEF_MOD("wdt_3_clk_loco", CLK_QEXTAL, 5, 2, 2, 18),
DEF_MOD("scif_0_clk_pck", CLK_PLLCM33_DIV16, 8, 15, 4, 15),
+ DEF_MOD("riic_8_ckm", CLK_PLLCM33_DIV16, 9, 3, 4, 19),
+ DEF_MOD("riic_0_ckm", CLK_PLLCLN_DIV16, 9, 4, 4, 20),
+ DEF_MOD("riic_1_ckm", CLK_PLLCLN_DIV16, 9, 5, 4, 21),
+ DEF_MOD("riic_2_ckm", CLK_PLLCLN_DIV16, 9, 6, 4, 22),
+ DEF_MOD("riic_3_ckm", CLK_PLLCLN_DIV16, 9, 7, 4, 23),
+ DEF_MOD("riic_4_ckm", CLK_PLLCLN_DIV16, 9, 8, 4, 24),
+ DEF_MOD("riic_5_ckm", CLK_PLLCLN_DIV16, 9, 9, 4, 25),
+ DEF_MOD("riic_6_ckm", CLK_PLLCLN_DIV16, 9, 10, 4, 26),
+ DEF_MOD("riic_7_ckm", CLK_PLLCLN_DIV16, 9, 11, 4, 27),
+ DEF_MOD("sdhi_0_imclk", CLK_PLLCLN_DIV8, 10, 3, 5, 3),
+ DEF_MOD("sdhi_0_imclk2", CLK_PLLCLN_DIV8, 10, 4, 5, 4),
+ DEF_MOD("sdhi_0_clk_hs", CLK_PLLCLN_DIV2, 10, 5, 5, 5),
+ DEF_MOD("sdhi_0_aclk", CLK_PLLDTY_ACPU_DIV4, 10, 6, 5, 6),
+ DEF_MOD("sdhi_1_imclk", CLK_PLLCLN_DIV8, 10, 7, 5, 7),
+ DEF_MOD("sdhi_1_imclk2", CLK_PLLCLN_DIV8, 10, 8, 5, 8),
+ DEF_MOD("sdhi_1_clk_hs", CLK_PLLCLN_DIV2, 10, 9, 5, 9),
+ DEF_MOD("sdhi_1_aclk", CLK_PLLDTY_ACPU_DIV4, 10, 10, 5, 10),
+ DEF_MOD("sdhi_2_imclk", CLK_PLLCLN_DIV8, 10, 11, 5, 11),
+ DEF_MOD("sdhi_2_imclk2", CLK_PLLCLN_DIV8, 10, 12, 5, 12),
+ DEF_MOD("sdhi_2_clk_hs", CLK_PLLCLN_DIV2, 10, 13, 5, 13),
+ DEF_MOD("sdhi_2_aclk", CLK_PLLDTY_ACPU_DIV4, 10, 14, 5, 14),
};
static const struct rzv2h_reset r9a09g057_resets[] __initconst = {
+ DEF_RST(6, 13, 2, 30), /* GTM_0_PRESETZ */
+ DEF_RST(6, 14, 2, 31), /* GTM_1_PRESETZ */
+ DEF_RST(6, 15, 3, 0), /* GTM_2_PRESETZ */
+ DEF_RST(7, 0, 3, 1), /* GTM_3_PRESETZ */
+ DEF_RST(7, 1, 3, 2), /* GTM_4_PRESETZ */
+ DEF_RST(7, 2, 3, 3), /* GTM_5_PRESETZ */
+ DEF_RST(7, 3, 3, 4), /* GTM_6_PRESETZ */
+ DEF_RST(7, 4, 3, 5), /* GTM_7_PRESETZ */
+ DEF_RST(7, 5, 3, 6), /* WDT_0_RESET */
+ DEF_RST(7, 6, 3, 7), /* WDT_1_RESET */
+ DEF_RST(7, 7, 3, 8), /* WDT_2_RESET */
+ DEF_RST(7, 8, 3, 9), /* WDT_3_RESET */
DEF_RST(9, 5, 4, 6), /* SCIF_0_RST_SYSTEM_N */
+ DEF_RST(9, 8, 4, 9), /* RIIC_0_MRST */
+ DEF_RST(9, 9, 4, 10), /* RIIC_1_MRST */
+ DEF_RST(9, 10, 4, 11), /* RIIC_2_MRST */
+ DEF_RST(9, 11, 4, 12), /* RIIC_3_MRST */
+ DEF_RST(9, 12, 4, 13), /* RIIC_4_MRST */
+ DEF_RST(9, 13, 4, 14), /* RIIC_5_MRST */
+ DEF_RST(9, 14, 4, 15), /* RIIC_6_MRST */
+ DEF_RST(9, 15, 4, 16), /* RIIC_7_MRST */
+ DEF_RST(10, 0, 4, 17), /* RIIC_8_MRST */
+ DEF_RST(10, 7, 4, 24), /* SDHI_0_IXRST */
+ DEF_RST(10, 8, 4, 25), /* SDHI_1_IXRST */
+ DEF_RST(10, 9, 4, 26), /* SDHI_2_IXRST */
};
const struct rzv2h_cpg_info r9a09g057_cpg_info __initconst = {
diff --git a/drivers/clk/renesas/rzv2h-cpg.c b/drivers/clk/renesas/rzv2h-cpg.c
index 34221046dc46..b524a9d33610 100644
--- a/drivers/clk/renesas/rzv2h-cpg.c
+++ b/drivers/clk/renesas/rzv2h-cpg.c
@@ -45,14 +45,19 @@
#define PDIV(val) FIELD_GET(GENMASK(5, 0), (val))
#define SDIV(val) FIELD_GET(GENMASK(2, 0), (val))
+#define DDIV_DIVCTL_WEN(shift) BIT((shift) + 16)
+
#define GET_MOD_CLK_ID(base, index, bit) \
((base) + ((((index) * (16))) + (bit)))
+#define CPG_CLKSTATUS0 (0x700)
+
/**
* struct rzv2h_cpg_priv - Clock Pulse Generator Private Data
*
* @dev: CPG device
* @base: CPG register block base address
+ * @rmw_lock: protects register accesses
* @clks: Array containing all Core and Module Clocks
* @num_core_clks: Number of Core Clocks in clks[]
* @num_mod_clks: Number of Module Clocks in clks[]
@@ -64,6 +69,7 @@
struct rzv2h_cpg_priv {
struct device *dev;
void __iomem *base;
+ spinlock_t rmw_lock;
struct clk **clks;
unsigned int num_core_clks;
@@ -108,6 +114,21 @@ struct mod_clock {
#define to_mod_clock(_hw) container_of(_hw, struct mod_clock, hw)
+/**
+ * struct ddiv_clk - DDIV clock
+ *
+ * @priv: CPG private data
+ * @div: divider clk
+ * @mon: monitor bit in CPG_CLKSTATUS0 register
+ */
+struct ddiv_clk {
+ struct rzv2h_cpg_priv *priv;
+ struct clk_divider div;
+ u8 mon;
+};
+
+#define to_ddiv_clock(_div) container_of(_div, struct ddiv_clk, div)
+
static unsigned long rzv2h_cpg_pll_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
@@ -161,7 +182,7 @@ rzv2h_cpg_pll_clk_register(const struct cpg_core_clk *core,
init.num_parents = 1;
pll_clk->hw.init = &init;
- pll_clk->conf = core->conf;
+ pll_clk->conf = core->cfg.conf;
pll_clk->base = base;
pll_clk->priv = priv;
pll_clk->type = core->type;
@@ -173,6 +194,143 @@ rzv2h_cpg_pll_clk_register(const struct cpg_core_clk *core,
return pll_clk->hw.clk;
}
+static unsigned long rzv2h_ddiv_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct clk_divider *divider = to_clk_divider(hw);
+ unsigned int val;
+
+ val = readl(divider->reg) >> divider->shift;
+ val &= clk_div_mask(divider->width);
+
+ return divider_recalc_rate(hw, parent_rate, val, divider->table,
+ divider->flags, divider->width);
+}
+
+static long rzv2h_ddiv_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct clk_divider *divider = to_clk_divider(hw);
+
+ return divider_round_rate(hw, rate, prate, divider->table,
+ divider->width, divider->flags);
+}
+
+static int rzv2h_ddiv_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ struct clk_divider *divider = to_clk_divider(hw);
+
+ return divider_determine_rate(hw, req, divider->table, divider->width,
+ divider->flags);
+}
+
+static inline int rzv2h_cpg_wait_ddiv_clk_update_done(void __iomem *base, u8 mon)
+{
+ u32 bitmask = BIT(mon);
+ u32 val;
+
+ return readl_poll_timeout_atomic(base + CPG_CLKSTATUS0, val, !(val & bitmask), 10, 200);
+}
+
+static int rzv2h_ddiv_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct clk_divider *divider = to_clk_divider(hw);
+ struct ddiv_clk *ddiv = to_ddiv_clock(divider);
+ struct rzv2h_cpg_priv *priv = ddiv->priv;
+ unsigned long flags = 0;
+ int value;
+ u32 val;
+ int ret;
+
+ value = divider_get_val(rate, parent_rate, divider->table,
+ divider->width, divider->flags);
+ if (value < 0)
+ return value;
+
+ spin_lock_irqsave(divider->lock, flags);
+
+ ret = rzv2h_cpg_wait_ddiv_clk_update_done(priv->base, ddiv->mon);
+ if (ret)
+ goto ddiv_timeout;
+
+ val = readl(divider->reg) | DDIV_DIVCTL_WEN(divider->shift);
+ val &= ~(clk_div_mask(divider->width) << divider->shift);
+ val |= (u32)value << divider->shift;
+ writel(val, divider->reg);
+
+ ret = rzv2h_cpg_wait_ddiv_clk_update_done(priv->base, ddiv->mon);
+ if (ret)
+ goto ddiv_timeout;
+
+ spin_unlock_irqrestore(divider->lock, flags);
+
+ return 0;
+
+ddiv_timeout:
+ spin_unlock_irqrestore(divider->lock, flags);
+ return ret;
+}
+
+static const struct clk_ops rzv2h_ddiv_clk_divider_ops = {
+ .recalc_rate = rzv2h_ddiv_recalc_rate,
+ .round_rate = rzv2h_ddiv_round_rate,
+ .determine_rate = rzv2h_ddiv_determine_rate,
+ .set_rate = rzv2h_ddiv_set_rate,
+};
+
+static struct clk * __init
+rzv2h_cpg_ddiv_clk_register(const struct cpg_core_clk *core,
+ struct rzv2h_cpg_priv *priv)
+{
+ struct ddiv cfg_ddiv = core->cfg.ddiv;
+ struct clk_init_data init = {};
+ struct device *dev = priv->dev;
+ u8 shift = cfg_ddiv.shift;
+ u8 width = cfg_ddiv.width;
+ const struct clk *parent;
+ const char *parent_name;
+ struct clk_divider *div;
+ struct ddiv_clk *ddiv;
+ int ret;
+
+ parent = priv->clks[core->parent];
+ if (IS_ERR(parent))
+ return ERR_CAST(parent);
+
+ parent_name = __clk_get_name(parent);
+
+ if ((shift + width) > 16)
+ return ERR_PTR(-EINVAL);
+
+ ddiv = devm_kzalloc(priv->dev, sizeof(*ddiv), GFP_KERNEL);
+ if (!ddiv)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = core->name;
+ init.ops = &rzv2h_ddiv_clk_divider_ops;
+ init.parent_names = &parent_name;
+ init.num_parents = 1;
+
+ ddiv->priv = priv;
+ ddiv->mon = cfg_ddiv.monbit;
+ div = &ddiv->div;
+ div->reg = priv->base + cfg_ddiv.offset;
+ div->shift = shift;
+ div->width = width;
+ div->flags = core->flag;
+ div->lock = &priv->rmw_lock;
+ div->hw.init = &init;
+ div->table = core->dtable;
+
+ ret = devm_clk_hw_register(dev, &div->hw);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return div->hw.clk;
+}
+
static struct clk
*rzv2h_cpg_clk_src_twocell_get(struct of_phandle_args *clkspec,
void *data)
@@ -254,6 +412,9 @@ rzv2h_cpg_register_core_clk(const struct cpg_core_clk *core,
case CLK_TYPE_PLL:
clk = rzv2h_cpg_pll_clk_register(core, priv, &rzv2h_cpg_pll_ops);
break;
+ case CLK_TYPE_DDIV:
+ clk = rzv2h_cpg_ddiv_clk_register(core, priv);
+ break;
default:
goto fail;
}
@@ -612,6 +773,8 @@ static int __init rzv2h_cpg_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
+ spin_lock_init(&priv->rmw_lock);
+
priv->dev = dev;
priv->base = devm_platform_ioremap_resource(pdev, 0);
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 6df59e041701..1bd406c69015 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -9,6 +9,33 @@
#define __RENESAS_RZV2H_CPG_H__
/**
+ * struct ddiv - Structure for dynamic switching divider
+ *
+ * @offset: register offset
+ * @shift: position of the divider bit
+ * @width: width of the divider
+ * @monbit: monitor bit in CPG_CLKSTATUS0 register
+ */
+struct ddiv {
+ unsigned int offset:11;
+ unsigned int shift:4;
+ unsigned int width:4;
+ unsigned int monbit:5;
+};
+
+#define DDIV_PACK(_offset, _shift, _width, _monbit) \
+ ((struct ddiv){ \
+ .offset = _offset, \
+ .shift = _shift, \
+ .width = _width, \
+ .monbit = _monbit \
+ })
+
+#define CPG_CDDIV0 (0x400)
+
+#define CDDIV0_DIVCTL2 DDIV_PACK(CPG_CDDIV0, 8, 3, 2)
+
+/**
* Definitions of CPG Core Clocks
*
* These include:
@@ -23,7 +50,12 @@ struct cpg_core_clk {
unsigned int div;
unsigned int mult;
unsigned int type;
- unsigned int conf;
+ union {
+ unsigned int conf;
+ struct ddiv ddiv;
+ } cfg;
+ const struct clk_div_table *dtable;
+ u32 flag;
};
enum clk_types {
@@ -31,6 +63,7 @@ enum clk_types {
CLK_TYPE_IN, /* External Clock Input */
CLK_TYPE_FF, /* Fixed Factor Clock */
CLK_TYPE_PLL,
+ CLK_TYPE_DDIV, /* Dynamic Switching Divider */
};
/* BIT(31) indicates if CLK1/2 are accessible or not */
@@ -44,11 +77,17 @@ enum clk_types {
#define DEF_BASE(_name, _id, _type, _parent...) \
DEF_TYPE(_name, _id, _type, .parent = _parent)
#define DEF_PLL(_name, _id, _parent, _conf) \
- DEF_TYPE(_name, _id, CLK_TYPE_PLL, .parent = _parent, .conf = _conf)
+ DEF_TYPE(_name, _id, CLK_TYPE_PLL, .parent = _parent, .cfg.conf = _conf)
#define DEF_INPUT(_name, _id) \
DEF_TYPE(_name, _id, CLK_TYPE_IN)
#define DEF_FIXED(_name, _id, _parent, _mult, _div) \
DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
+#define DEF_DDIV(_name, _id, _parent, _ddiv_packed, _dtable) \
+ DEF_TYPE(_name, _id, CLK_TYPE_DDIV, \
+ .cfg.ddiv = _ddiv_packed, \
+ .parent = _parent, \
+ .dtable = _dtable, \
+ .flag = CLK_DIVIDER_HIWORD_MASK)
/**
* struct rzv2h_mod_clk - Module Clocks definitions