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authorStephen Boyd <sboyd@kernel.org>2021-10-15 14:57:57 -0700
committerStephen Boyd <sboyd@kernel.org>2021-10-15 14:57:57 -0700
commitbada0389c2d8c544c4410140bce45aa01aaa59ad (patch)
tree0caf91c073ccd8c26c4b1ffce206a66aa36652e1 /drivers/clk
parente974872eb3913902d4a4d1f5724c5060210067e3 (diff)
parent2bd9feed23166f5ab67dec2ca02bd3f74c77b0ba (diff)
Merge tag 'renesas-clk-for-v5.16-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas
Pull Renesas clk driver updates from Geert Uytterhoeven: - Add SPI Multi I/O Bus and SDHI clocks and resets on RZ/G2L - Add SPI Multi I/O Bus (RPC) clocks on R-Car V3U - Add MediaLB clocks on R-Car H3, M3-W/W+, and M3-N * tag 'renesas-clk-for-v5.16-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: r8a779[56]x: Add MLP clocks clk: renesas: r9a07g044: Add SDHI clock and reset entries clk: renesas: rzg2l: Add SDHI clk mux support clk: renesas: r8a779a0: Add RPC support clk: renesas: cpg-lib: Move RPC clock registration to the library clk: renesas: r9a07g044: Add clock and reset entries for SPI Multi I/O Bus Controller
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/renesas/r8a7795-cpg-mssr.c1
-rw-r--r--drivers/clk/renesas/r8a7796-cpg-mssr.c1
-rw-r--r--drivers/clk/renesas/r8a77965-cpg-mssr.c1
-rw-r--r--drivers/clk/renesas/r8a779a0-cpg-mssr.c32
-rw-r--r--drivers/clk/renesas/r9a07g044-cpg.c54
-rw-r--r--drivers/clk/renesas/rcar-cpg-lib.c83
-rw-r--r--drivers/clk/renesas/rcar-cpg-lib.h7
-rw-r--r--drivers/clk/renesas/rcar-gen3-cpg.c89
-rw-r--r--drivers/clk/renesas/rzg2l-cpg.c118
-rw-r--r--drivers/clk/renesas/rzg2l-cpg.h19
10 files changed, 318 insertions, 87 deletions
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index c32d2c678046..d6b1d0148bfd 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -229,6 +229,7 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
DEF_MOD("lvds", 727, R8A7795_CLK_S0D4),
DEF_MOD("hdmi1", 728, R8A7795_CLK_HDMI),
DEF_MOD("hdmi0", 729, R8A7795_CLK_HDMI),
+ DEF_MOD("mlp", 802, R8A7795_CLK_S2D1),
DEF_MOD("vin7", 804, R8A7795_CLK_S0D2),
DEF_MOD("vin6", 805, R8A7795_CLK_S0D2),
DEF_MOD("vin5", 806, R8A7795_CLK_S0D2),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 41593c126faf..9c22977e42c2 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -207,6 +207,7 @@ static struct mssr_mod_clk r8a7796_mod_clks[] __initdata = {
DEF_MOD("du0", 724, R8A7796_CLK_S2D1),
DEF_MOD("lvds", 727, R8A7796_CLK_S2D1),
DEF_MOD("hdmi0", 729, R8A7796_CLK_HDMI),
+ DEF_MOD("mlp", 802, R8A7796_CLK_S2D1),
DEF_MOD("vin7", 804, R8A7796_CLK_S0D2),
DEF_MOD("vin6", 805, R8A7796_CLK_S0D2),
DEF_MOD("vin5", 806, R8A7796_CLK_S0D2),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index bc1be8bcbbe4..7eee45a31b2a 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -205,6 +205,7 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
DEF_MOD("lvds", 727, R8A77965_CLK_S2D1),
DEF_MOD("hdmi0", 729, R8A77965_CLK_HDMI),
+ DEF_MOD("mlp", 802, R8A77965_CLK_S2D1),
DEF_MOD("vin7", 804, R8A77965_CLK_S0D2),
DEF_MOD("vin6", 805, R8A77965_CLK_S0D2),
DEF_MOD("vin5", 806, R8A77965_CLK_S0D2),
diff --git a/drivers/clk/renesas/r8a779a0-cpg-mssr.c b/drivers/clk/renesas/r8a779a0-cpg-mssr.c
index 1ced31b6dbe8..fbd7454f2beb 100644
--- a/drivers/clk/renesas/r8a779a0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a779a0-cpg-mssr.c
@@ -37,6 +37,9 @@ enum rcar_r8a779a0_clk_types {
CLK_TYPE_R8A779A0_SD,
CLK_TYPE_R8A779A0_MDSEL, /* Select parent/divider using mode pin */
CLK_TYPE_R8A779A0_OSC, /* OSC EXTAL predivider and fixed divider */
+ CLK_TYPE_R8A779A0_RPCSRC,
+ CLK_TYPE_R8A779A0_RPC,
+ CLK_TYPE_R8A779A0_RPCD2,
};
struct rcar_r8a779a0_cpg_pll_config {
@@ -125,6 +128,10 @@ static const struct cpg_core_clk r8a779a0_core_clks[] __initconst = {
DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 4, 1),
DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL5_DIV4, 1, 1),
DEF_RATE(".oco", CLK_OCO, 32768),
+ DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_R8A779A0_RPCSRC, CLK_PLL5),
+ DEF_BASE("rpc", R8A779A0_CLK_RPC, CLK_TYPE_R8A779A0_RPC, CLK_RPCSRC),
+ DEF_BASE("rpcd2", R8A779A0_CLK_RPCD2, CLK_TYPE_R8A779A0_RPCD2,
+ R8A779A0_CLK_RPC),
/* Core Clock Outputs */
DEF_Z("z0", R8A779A0_CLK_Z0, CLK_PLL20, 2, 0),
@@ -200,6 +207,7 @@ static const struct mssr_mod_clk r8a779a0_mod_clks[] __initconst = {
DEF_MOD("msi3", 621, R8A779A0_CLK_MSO),
DEF_MOD("msi4", 622, R8A779A0_CLK_MSO),
DEF_MOD("msi5", 623, R8A779A0_CLK_MSO),
+ DEF_MOD("rpc-if", 629, R8A779A0_CLK_RPCD2),
DEF_MOD("scif0", 702, R8A779A0_CLK_S1D8),
DEF_MOD("scif1", 703, R8A779A0_CLK_S1D8),
DEF_MOD("scif3", 704, R8A779A0_CLK_S1D8),
@@ -414,6 +422,15 @@ static struct clk * __init cpg_z_clk_register(const char *name,
return clk;
}
+/*
+ * RPC Clocks
+ */
+#define CPG_RPCCKCR 0x874
+
+static const struct clk_div_table cpg_rpcsrc_div_table[] = {
+ { 0, 4 }, { 1, 6 }, { 2, 5 }, { 3, 6 }, { 0, 0 },
+};
+
static struct clk * __init rcar_r8a779a0_cpg_clk_register(struct device *dev,
const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
struct clk **clks, void __iomem *base,
@@ -481,6 +498,21 @@ static struct clk * __init rcar_r8a779a0_cpg_clk_register(struct device *dev,
div = cpg_pll_config->osc_prediv * core->div;
break;
+ case CLK_TYPE_R8A779A0_RPCSRC:
+ return clk_register_divider_table(NULL, core->name,
+ __clk_get_name(parent), 0,
+ base + CPG_RPCCKCR, 3, 2, 0,
+ cpg_rpcsrc_div_table,
+ &cpg_lock);
+
+ case CLK_TYPE_R8A779A0_RPC:
+ return cpg_rpc_clk_register(core->name, base + CPG_RPCCKCR,
+ __clk_get_name(parent), notifiers);
+
+ case CLK_TYPE_R8A779A0_RPCD2:
+ return cpg_rpcd2_clk_register(core->name, base + CPG_RPCCKCR,
+ __clk_get_name(parent));
+
default:
return ERR_PTR(-EINVAL);
}
diff --git a/drivers/clk/renesas/r9a07g044-cpg.c b/drivers/clk/renesas/r9a07g044-cpg.c
index 3c518b56c5a6..47c16265fca9 100644
--- a/drivers/clk/renesas/r9a07g044-cpg.c
+++ b/drivers/clk/renesas/r9a07g044-cpg.c
@@ -29,10 +29,14 @@ enum clk_ids {
CLK_PLL2_DIV16,
CLK_PLL2_DIV20,
CLK_PLL3,
+ CLK_PLL3_400,
+ CLK_PLL3_533,
CLK_PLL3_DIV2,
CLK_PLL3_DIV2_4,
CLK_PLL3_DIV2_4_2,
CLK_PLL3_DIV4,
+ CLK_SEL_PLL3_3,
+ CLK_DIV_PLL3_C,
CLK_PLL4,
CLK_PLL5,
CLK_PLL5_FOUT3,
@@ -40,6 +44,12 @@ enum clk_ids {
CLK_PLL6,
CLK_PLL6_250,
CLK_P1_DIV2,
+ CLK_PLL2_800,
+ CLK_PLL2_SDHI_533,
+ CLK_PLL2_SDHI_400,
+ CLK_PLL2_SDHI_266,
+ CLK_SD0_DIV4,
+ CLK_SD1_DIV4,
/* Module Clocks */
MOD_CLK_BASE,
@@ -56,7 +66,9 @@ static const struct clk_div_table dtable_1_32[] = {
};
/* Mux clock tables */
+static const char * const sel_pll3_3[] = { ".pll3_533", ".pll3_400" };
static const char * const sel_pll6_2[] = { ".pll6_250", ".pll5_250" };
+static const char * const sel_shdi[] = { ".clk_533", ".clk_400", ".clk_266" };
static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
/* External Clock Inputs */
@@ -68,6 +80,8 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
DEF_SAMPLL(".pll1", CLK_PLL1, CLK_EXTAL, PLL146_CONF(0)),
DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 133, 2),
DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 133, 2),
+ DEF_FIXED(".pll3_400", CLK_PLL3_400, CLK_PLL3, 1, 4),
+ DEF_FIXED(".pll3_533", CLK_PLL3_533, CLK_PLL3, 1, 3),
DEF_FIXED(".pll5", CLK_PLL5, CLK_EXTAL, 125, 1),
DEF_FIXED(".pll5_fout3", CLK_PLL5_FOUT3, CLK_PLL5, 1, 6),
@@ -75,6 +89,11 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
DEF_FIXED(".pll6", CLK_PLL6, CLK_EXTAL, 125, 6),
DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2),
+ DEF_FIXED(".clk_800", CLK_PLL2_800, CLK_PLL2, 1, 2),
+ DEF_FIXED(".clk_533", CLK_PLL2_SDHI_533, CLK_PLL2, 1, 3),
+ DEF_FIXED(".clk_400", CLK_PLL2_SDHI_400, CLK_PLL2_800, 1, 2),
+ DEF_FIXED(".clk_266", CLK_PLL2_SDHI_266, CLK_PLL2_SDHI_533, 1, 2),
+
DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16),
DEF_FIXED(".pll2_div20", CLK_PLL2_DIV20, CLK_PLL2, 1, 20),
@@ -82,6 +101,10 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4),
DEF_FIXED(".pll3_div2_4_2", CLK_PLL3_DIV2_4_2, CLK_PLL3_DIV2_4, 1, 2),
DEF_FIXED(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4),
+ DEF_MUX(".sel_pll3_3", CLK_SEL_PLL3_3, SEL_PLL3_3,
+ sel_pll3_3, ARRAY_SIZE(sel_pll3_3), 0, CLK_MUX_READ_ONLY),
+ DEF_DIV("divpl3c", CLK_DIV_PLL3_C, CLK_SEL_PLL3_3,
+ DIVPL3C, dtable_1_32, CLK_DIVIDER_HIWORD_MASK),
DEF_FIXED(".pll5_250", CLK_PLL5_250, CLK_PLL5_FOUT3, 1, 2),
DEF_FIXED(".pll6_250", CLK_PLL6_250, CLK_PLL6, 1, 2),
@@ -101,6 +124,14 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
DEF_FIXED("ZT", R9A07G044_CLK_ZT, CLK_PLL3_DIV2_4_2, 1, 1),
DEF_MUX("HP", R9A07G044_CLK_HP, SEL_PLL6_2,
sel_pll6_2, ARRAY_SIZE(sel_pll6_2), 0, CLK_MUX_HIWORD_MASK),
+ DEF_FIXED("SPI0", R9A07G044_CLK_SPI0, CLK_DIV_PLL3_C, 1, 2),
+ DEF_FIXED("SPI1", R9A07G044_CLK_SPI1, CLK_DIV_PLL3_C, 1, 4),
+ DEF_SD_MUX("SD0", R9A07G044_CLK_SD0, SEL_SDHI0,
+ sel_shdi, ARRAY_SIZE(sel_shdi)),
+ DEF_SD_MUX("SD1", R9A07G044_CLK_SD1, SEL_SDHI1,
+ sel_shdi, ARRAY_SIZE(sel_shdi)),
+ DEF_FIXED("SD0_DIV4", CLK_SD0_DIV4, R9A07G044_CLK_SD0, 1, 4),
+ DEF_FIXED("SD1_DIV4", CLK_SD1_DIV4, R9A07G044_CLK_SD1, 1, 4),
};
static struct rzg2l_mod_clk r9a07g044_mod_clks[] = {
@@ -114,6 +145,26 @@ static struct rzg2l_mod_clk r9a07g044_mod_clks[] = {
0x52c, 0),
DEF_MOD("dmac_pclk", R9A07G044_DMAC_PCLK, CLK_P1_DIV2,
0x52c, 1),
+ DEF_MOD("spi_clk2", R9A07G044_SPI_CLK2, R9A07G044_CLK_SPI1,
+ 0x550, 0),
+ DEF_MOD("spi_clk", R9A07G044_SPI_CLK, R9A07G044_CLK_SPI0,
+ 0x550, 1),
+ DEF_MOD("sdhi0_imclk", R9A07G044_SDHI0_IMCLK, CLK_SD0_DIV4,
+ 0x554, 0),
+ DEF_MOD("sdhi0_imclk2", R9A07G044_SDHI0_IMCLK2, CLK_SD0_DIV4,
+ 0x554, 1),
+ DEF_MOD("sdhi0_clk_hs", R9A07G044_SDHI0_CLK_HS, R9A07G044_CLK_SD0,
+ 0x554, 2),
+ DEF_MOD("sdhi0_aclk", R9A07G044_SDHI0_ACLK, R9A07G044_CLK_P1,
+ 0x554, 3),
+ DEF_MOD("sdhi1_imclk", R9A07G044_SDHI1_IMCLK, CLK_SD1_DIV4,
+ 0x554, 4),
+ DEF_MOD("sdhi1_imclk2", R9A07G044_SDHI1_IMCLK2, CLK_SD1_DIV4,
+ 0x554, 5),
+ DEF_MOD("sdhi1_clk_hs", R9A07G044_SDHI1_CLK_HS, R9A07G044_CLK_SD1,
+ 0x554, 6),
+ DEF_MOD("sdhi1_aclk", R9A07G044_SDHI1_ACLK, R9A07G044_CLK_P1,
+ 0x554, 7),
DEF_MOD("ssi0_pclk", R9A07G044_SSI0_PCLK2, R9A07G044_CLK_P0,
0x570, 0),
DEF_MOD("ssi0_sfr", R9A07G044_SSI0_PCLK_SFR, R9A07G044_CLK_P0,
@@ -182,6 +233,9 @@ static struct rzg2l_reset r9a07g044_resets[] = {
DEF_RST(R9A07G044_IA55_RESETN, 0x818, 0),
DEF_RST(R9A07G044_DMAC_ARESETN, 0x82c, 0),
DEF_RST(R9A07G044_DMAC_RST_ASYNC, 0x82c, 1),
+ DEF_RST(R9A07G044_SPI_RST, 0x850, 0),
+ DEF_RST(R9A07G044_SDHI0_IXRST, 0x854, 0),
+ DEF_RST(R9A07G044_SDHI1_IXRST, 0x854, 1),
DEF_RST(R9A07G044_SSI0_RST_M2_REG, 0x870, 0),
DEF_RST(R9A07G044_SSI1_RST_M2_REG, 0x870, 1),
DEF_RST(R9A07G044_SSI2_RST_M2_REG, 0x870, 2),
diff --git a/drivers/clk/renesas/rcar-cpg-lib.c b/drivers/clk/renesas/rcar-cpg-lib.c
index 5678768ee1f2..e93f0011eb07 100644
--- a/drivers/clk/renesas/rcar-cpg-lib.c
+++ b/drivers/clk/renesas/rcar-cpg-lib.c
@@ -267,4 +267,87 @@ free_clock:
return clk;
}
+struct rpc_clock {
+ struct clk_divider div;
+ struct clk_gate gate;
+ /*
+ * One notifier covers both RPC and RPCD2 clocks as they are both
+ * controlled by the same RPCCKCR register...
+ */
+ struct cpg_simple_notifier csn;
+};
+
+static const struct clk_div_table cpg_rpc_div_table[] = {
+ { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 }, { 0, 0 },
+};
+
+struct clk * __init cpg_rpc_clk_register(const char *name,
+ void __iomem *rpcckcr, const char *parent_name,
+ struct raw_notifier_head *notifiers)
+{
+ struct rpc_clock *rpc;
+ struct clk *clk;
+
+ rpc = kzalloc(sizeof(*rpc), GFP_KERNEL);
+ if (!rpc)
+ return ERR_PTR(-ENOMEM);
+
+ rpc->div.reg = rpcckcr;
+ rpc->div.width = 3;
+ rpc->div.table = cpg_rpc_div_table;
+ rpc->div.lock = &cpg_lock;
+
+ rpc->gate.reg = rpcckcr;
+ rpc->gate.bit_idx = 8;
+ rpc->gate.flags = CLK_GATE_SET_TO_DISABLE;
+ rpc->gate.lock = &cpg_lock;
+
+ rpc->csn.reg = rpcckcr;
+
+ clk = clk_register_composite(NULL, name, &parent_name, 1, NULL, NULL,
+ &rpc->div.hw, &clk_divider_ops,
+ &rpc->gate.hw, &clk_gate_ops,
+ CLK_SET_RATE_PARENT);
+ if (IS_ERR(clk)) {
+ kfree(rpc);
+ return clk;
+ }
+
+ cpg_simple_notifier_register(notifiers, &rpc->csn);
+ return clk;
+}
+
+struct rpcd2_clock {
+ struct clk_fixed_factor fixed;
+ struct clk_gate gate;
+};
+
+struct clk * __init cpg_rpcd2_clk_register(const char *name,
+ void __iomem *rpcckcr,
+ const char *parent_name)
+{
+ struct rpcd2_clock *rpcd2;
+ struct clk *clk;
+
+ rpcd2 = kzalloc(sizeof(*rpcd2), GFP_KERNEL);
+ if (!rpcd2)
+ return ERR_PTR(-ENOMEM);
+
+ rpcd2->fixed.mult = 1;
+ rpcd2->fixed.div = 2;
+
+ rpcd2->gate.reg = rpcckcr;
+ rpcd2->gate.bit_idx = 9;
+ rpcd2->gate.flags = CLK_GATE_SET_TO_DISABLE;
+ rpcd2->gate.lock = &cpg_lock;
+
+ clk = clk_register_composite(NULL, name, &parent_name, 1, NULL, NULL,
+ &rpcd2->fixed.hw, &clk_fixed_factor_ops,
+ &rpcd2->gate.hw, &clk_gate_ops,
+ CLK_SET_RATE_PARENT);
+ if (IS_ERR(clk))
+ kfree(rpcd2);
+
+ return clk;
+}
diff --git a/drivers/clk/renesas/rcar-cpg-lib.h b/drivers/clk/renesas/rcar-cpg-lib.h
index d00c91b116ca..35c0217c2f8b 100644
--- a/drivers/clk/renesas/rcar-cpg-lib.h
+++ b/drivers/clk/renesas/rcar-cpg-lib.h
@@ -30,4 +30,11 @@ struct clk * __init cpg_sd_clk_register(const char *name,
void __iomem *base, unsigned int offset, const char *parent_name,
struct raw_notifier_head *notifiers, bool skip_first);
+struct clk * __init cpg_rpc_clk_register(const char *name,
+ void __iomem *rpcckcr, const char *parent_name,
+ struct raw_notifier_head *notifiers);
+
+struct clk * __init cpg_rpcd2_clk_register(const char *name,
+ void __iomem *rpcckcr,
+ const char *parent_name);
#endif
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 558191c99b48..741f6e74bbcf 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -301,95 +301,10 @@ static struct clk * __init cpg_z_clk_register(const char *name,
return clk;
}
-struct rpc_clock {
- struct clk_divider div;
- struct clk_gate gate;
- /*
- * One notifier covers both RPC and RPCD2 clocks as they are both
- * controlled by the same RPCCKCR register...
- */
- struct cpg_simple_notifier csn;
-};
-
static const struct clk_div_table cpg_rpcsrc_div_table[] = {
{ 2, 5 }, { 3, 6 }, { 0, 0 },
};
-static const struct clk_div_table cpg_rpc_div_table[] = {
- { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 }, { 0, 0 },
-};
-
-static struct clk * __init cpg_rpc_clk_register(const char *name,
- void __iomem *base, const char *parent_name,
- struct raw_notifier_head *notifiers)
-{
- struct rpc_clock *rpc;
- struct clk *clk;
-
- rpc = kzalloc(sizeof(*rpc), GFP_KERNEL);
- if (!rpc)
- return ERR_PTR(-ENOMEM);
-
- rpc->div.reg = base + CPG_RPCCKCR;
- rpc->div.width = 3;
- rpc->div.table = cpg_rpc_div_table;
- rpc->div.lock = &cpg_lock;
-
- rpc->gate.reg = base + CPG_RPCCKCR;
- rpc->gate.bit_idx = 8;
- rpc->gate.flags = CLK_GATE_SET_TO_DISABLE;
- rpc->gate.lock = &cpg_lock;
-
- rpc->csn.reg = base + CPG_RPCCKCR;
-
- clk = clk_register_composite(NULL, name, &parent_name, 1, NULL, NULL,
- &rpc->div.hw, &clk_divider_ops,
- &rpc->gate.hw, &clk_gate_ops,
- CLK_SET_RATE_PARENT);
- if (IS_ERR(clk)) {
- kfree(rpc);
- return clk;
- }
-
- cpg_simple_notifier_register(notifiers, &rpc->csn);
- return clk;
-}
-
-struct rpcd2_clock {
- struct clk_fixed_factor fixed;
- struct clk_gate gate;
-};
-
-static struct clk * __init cpg_rpcd2_clk_register(const char *name,
- void __iomem *base,
- const char *parent_name)
-{
- struct rpcd2_clock *rpcd2;
- struct clk *clk;
-
- rpcd2 = kzalloc(sizeof(*rpcd2), GFP_KERNEL);
- if (!rpcd2)
- return ERR_PTR(-ENOMEM);
-
- rpcd2->fixed.mult = 1;
- rpcd2->fixed.div = 2;
-
- rpcd2->gate.reg = base + CPG_RPCCKCR;
- rpcd2->gate.bit_idx = 9;
- rpcd2->gate.flags = CLK_GATE_SET_TO_DISABLE;
- rpcd2->gate.lock = &cpg_lock;
-
- clk = clk_register_composite(NULL, name, &parent_name, 1, NULL, NULL,
- &rpcd2->fixed.hw, &clk_fixed_factor_ops,
- &rpcd2->gate.hw, &clk_gate_ops,
- CLK_SET_RATE_PARENT);
- if (IS_ERR(clk))
- kfree(rpcd2);
-
- return clk;
-}
-
-
static const struct rcar_gen3_cpg_pll_config *cpg_pll_config __initdata;
static unsigned int cpg_clk_extalr __initdata;
static u32 cpg_mode __initdata;
@@ -600,11 +515,11 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
break;
case CLK_TYPE_GEN3_RPC:
- return cpg_rpc_clk_register(core->name, base,
+ return cpg_rpc_clk_register(core->name, base + CPG_RPCCKCR,
__clk_get_name(parent), notifiers);
case CLK_TYPE_GEN3_RPCD2:
- return cpg_rpcd2_clk_register(core->name, base,
+ return cpg_rpcd2_clk_register(core->name, base + CPG_RPCCKCR,
__clk_get_name(parent));
default:
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index 1501547a11a3..4021f6cabda4 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -17,6 +17,7 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/init.h>
+#include <linux/iopoll.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_address.h>
@@ -55,6 +56,14 @@
#define GET_REG_SAMPLL_CLK1(val) ((val >> 22) & 0xfff)
#define GET_REG_SAMPLL_CLK2(val) ((val >> 12) & 0xfff)
+struct sd_hw_data {
+ struct clk_hw hw;
+ u32 conf;
+ struct rzg2l_cpg_priv *priv;
+};
+
+#define to_sd_hw_data(_hw) container_of(_hw, struct sd_hw_data, hw)
+
/**
* struct rzg2l_cpg_priv - Clock Pulse Generator Private Data
*
@@ -150,6 +159,112 @@ rzg2l_cpg_mux_clk_register(const struct cpg_core_clk *core,
return clk_hw->clk;
}
+static int rzg2l_cpg_sd_clk_mux_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return clk_mux_determine_rate_flags(hw, req, 0);
+}
+
+static int rzg2l_cpg_sd_clk_mux_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct sd_hw_data *hwdata = to_sd_hw_data(hw);
+ struct rzg2l_cpg_priv *priv = hwdata->priv;
+ u32 off = GET_REG_OFFSET(hwdata->conf);
+ u32 shift = GET_SHIFT(hwdata->conf);
+ const u32 clk_src_266 = 2;
+ u32 bitmask;
+
+ /*
+ * As per the HW manual, we should not directly switch from 533 MHz to
+ * 400 MHz and vice versa. To change the setting from 2’b01 (533 MHz)
+ * to 2’b10 (400 MHz) or vice versa, Switch to 2’b11 (266 MHz) first,
+ * and then switch to the target setting (2’b01 (533 MHz) or 2’b10
+ * (400 MHz)).
+ * Setting a value of '0' to the SEL_SDHI0_SET or SEL_SDHI1_SET clock
+ * switching register is prohibited.
+ * The clock mux has 3 input clocks(533 MHz, 400 MHz, and 266 MHz), and
+ * the index to value mapping is done by adding 1 to the index.
+ */
+ bitmask = (GENMASK(GET_WIDTH(hwdata->conf) - 1, 0) << shift) << 16;
+ if (index != clk_src_266) {
+ u32 msk, val;
+ int ret;
+
+ writel(bitmask | ((clk_src_266 + 1) << shift), priv->base + off);
+
+ msk = off ? CPG_CLKSTATUS_SELSDHI1_STS : CPG_CLKSTATUS_SELSDHI0_STS;
+
+ ret = readl_poll_timeout(priv->base + CPG_CLKSTATUS, val,
+ !(val & msk), 100,
+ CPG_SDHI_CLK_SWITCH_STATUS_TIMEOUT_US);
+ if (ret) {
+ dev_err(priv->dev, "failed to switch clk source\n");
+ return ret;
+ }
+ }
+
+ writel(bitmask | ((index + 1) << shift), priv->base + off);
+
+ return 0;
+}
+
+static u8 rzg2l_cpg_sd_clk_mux_get_parent(struct clk_hw *hw)
+{
+ struct sd_hw_data *hwdata = to_sd_hw_data(hw);
+ struct rzg2l_cpg_priv *priv = hwdata->priv;
+ u32 val = readl(priv->base + GET_REG_OFFSET(hwdata->conf));
+
+ val >>= GET_SHIFT(hwdata->conf);
+ val &= GENMASK(GET_WIDTH(hwdata->conf) - 1, 0);
+ if (val) {
+ val--;
+ } else {
+ /* Prohibited clk source, change it to 533 MHz(reset value) */
+ rzg2l_cpg_sd_clk_mux_set_parent(hw, 0);
+ }
+
+ return val;
+}
+
+static const struct clk_ops rzg2l_cpg_sd_clk_mux_ops = {
+ .determine_rate = rzg2l_cpg_sd_clk_mux_determine_rate,
+ .set_parent = rzg2l_cpg_sd_clk_mux_set_parent,
+ .get_parent = rzg2l_cpg_sd_clk_mux_get_parent,
+};
+
+static struct clk * __init
+rzg2l_cpg_sd_mux_clk_register(const struct cpg_core_clk *core,
+ void __iomem *base,
+ struct rzg2l_cpg_priv *priv)
+{
+ struct sd_hw_data *clk_hw_data;
+ struct clk_init_data init;
+ struct clk_hw *clk_hw;
+ int ret;
+
+ clk_hw_data = devm_kzalloc(priv->dev, sizeof(*clk_hw_data), GFP_KERNEL);
+ if (!clk_hw_data)
+ return ERR_PTR(-ENOMEM);
+
+ clk_hw_data->priv = priv;
+ clk_hw_data->conf = core->conf;
+
+ init.name = GET_SHIFT(core->conf) ? "sd1" : "sd0";
+ init.ops = &rzg2l_cpg_sd_clk_mux_ops;
+ init.flags = 0;
+ init.num_parents = core->num_parents;
+ init.parent_names = core->parent_names;
+
+ clk_hw = &clk_hw_data->hw;
+ clk_hw->init = &init;
+
+ ret = devm_clk_hw_register(priv->dev, clk_hw);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return clk_hw->clk;
+}
+
struct pll_clk {
struct clk_hw hw;
unsigned int conf;
@@ -311,6 +426,9 @@ rzg2l_cpg_register_core_clk(const struct cpg_core_clk *core,
case CLK_TYPE_MUX:
clk = rzg2l_cpg_mux_clk_register(core, priv->base, priv);
break;
+ case CLK_TYPE_SD_MUX:
+ clk = rzg2l_cpg_sd_mux_clk_register(core, priv->base, priv);
+ break;
default:
goto fail;
}
diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h
index 191c403aa52f..7fb6b4030f72 100644
--- a/drivers/clk/renesas/rzg2l-cpg.h
+++ b/drivers/clk/renesas/rzg2l-cpg.h
@@ -11,8 +11,16 @@
#define CPG_PL2_DDIV (0x204)
#define CPG_PL3A_DDIV (0x208)
+#define CPG_PL2SDHI_DSEL (0x218)
+#define CPG_CLKSTATUS (0x280)
+#define CPG_PL3_SSEL (0x408)
#define CPG_PL6_ETH_SSEL (0x418)
+#define CPG_CLKSTATUS_SELSDHI0_STS BIT(28)
+#define CPG_CLKSTATUS_SELSDHI1_STS BIT(29)
+
+#define CPG_SDHI_CLK_SWITCH_STATUS_TIMEOUT_US 20000
+
/* n = 0/1/2 for PLL1/4/6 */
#define CPG_SAMPLL_CLK1(n) (0x04 + (16 * n))
#define CPG_SAMPLL_CLK2(n) (0x08 + (16 * n))
@@ -24,12 +32,17 @@
#define DIVPL2A DDIV_PACK(CPG_PL2_DDIV, 0, 3)
#define DIVPL3A DDIV_PACK(CPG_PL3A_DDIV, 0, 3)
#define DIVPL3B DDIV_PACK(CPG_PL3A_DDIV, 4, 3)
+#define DIVPL3C DDIV_PACK(CPG_PL3A_DDIV, 8, 3)
#define SEL_PLL_PACK(offset, bitpos, size) \
(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
+#define SEL_PLL3_3 SEL_PLL_PACK(CPG_PL3_SSEL, 8, 1)
#define SEL_PLL6_2 SEL_PLL_PACK(CPG_PL6_ETH_SSEL, 0, 1)
+#define SEL_SDHI0 DDIV_PACK(CPG_PL2SDHI_DSEL, 0, 2)
+#define SEL_SDHI1 DDIV_PACK(CPG_PL2SDHI_DSEL, 4, 2)
+
/**
* Definitions of CPG Core Clocks
*
@@ -64,6 +77,9 @@ enum clk_types {
/* Clock with clock source selector */
CLK_TYPE_MUX,
+
+ /* Clock with SD clock source selector */
+ CLK_TYPE_SD_MUX,
};
#define DEF_TYPE(_name, _id, _type...) \
@@ -84,6 +100,9 @@ enum clk_types {
DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
.parent_names = _parent_names, .num_parents = _num_parents, \
.flag = _flag, .mux_flags = _mux_flags)
+#define DEF_SD_MUX(_name, _id, _conf, _parent_names, _num_parents) \
+ DEF_TYPE(_name, _id, CLK_TYPE_SD_MUX, .conf = _conf, \
+ .parent_names = _parent_names, .num_parents = _num_parents)
/**
* struct rzg2l_mod_clk - Module Clocks definitions