16a6ba5b5SSugaya Taichi // SPDX-License-Identifier: GPL-2.0
26a6ba5b5SSugaya Taichi /*
36a6ba5b5SSugaya Taichi * Copyright (C) 2018 Socionext Inc.
46a6ba5b5SSugaya Taichi * Copyright (C) 2016 Linaro Ltd.
56a6ba5b5SSugaya Taichi */
66a6ba5b5SSugaya Taichi
76a6ba5b5SSugaya Taichi #include <linux/clk-provider.h>
86a6ba5b5SSugaya Taichi #include <linux/err.h>
96a6ba5b5SSugaya Taichi #include <linux/io.h>
106a6ba5b5SSugaya Taichi #include <linux/iopoll.h>
116a6ba5b5SSugaya Taichi #include <linux/of_address.h>
126a6ba5b5SSugaya Taichi #include <linux/platform_device.h>
136a6ba5b5SSugaya Taichi #include <linux/slab.h>
146a6ba5b5SSugaya Taichi #include <linux/spinlock.h>
156a6ba5b5SSugaya Taichi
166a6ba5b5SSugaya Taichi #define M10V_CLKSEL1 0x0
176a6ba5b5SSugaya Taichi #define CLKSEL(n) (((n) - 1) * 4 + M10V_CLKSEL1)
186a6ba5b5SSugaya Taichi
196a6ba5b5SSugaya Taichi #define M10V_PLL1 "pll1"
206a6ba5b5SSugaya Taichi #define M10V_PLL1DIV2 "pll1-2"
216a6ba5b5SSugaya Taichi #define M10V_PLL2 "pll2"
226a6ba5b5SSugaya Taichi #define M10V_PLL2DIV2 "pll2-2"
236a6ba5b5SSugaya Taichi #define M10V_PLL6 "pll6"
246a6ba5b5SSugaya Taichi #define M10V_PLL6DIV2 "pll6-2"
256a6ba5b5SSugaya Taichi #define M10V_PLL6DIV3 "pll6-3"
266a6ba5b5SSugaya Taichi #define M10V_PLL7 "pll7"
276a6ba5b5SSugaya Taichi #define M10V_PLL7DIV2 "pll7-2"
286a6ba5b5SSugaya Taichi #define M10V_PLL7DIV5 "pll7-5"
296a6ba5b5SSugaya Taichi #define M10V_PLL9 "pll9"
306a6ba5b5SSugaya Taichi #define M10V_PLL10 "pll10"
316a6ba5b5SSugaya Taichi #define M10V_PLL10DIV2 "pll10-2"
326a6ba5b5SSugaya Taichi #define M10V_PLL11 "pll11"
336a6ba5b5SSugaya Taichi
346a6ba5b5SSugaya Taichi #define M10V_SPI_PARENT0 "spi-parent0"
356a6ba5b5SSugaya Taichi #define M10V_SPI_PARENT1 "spi-parent1"
366a6ba5b5SSugaya Taichi #define M10V_SPI_PARENT2 "spi-parent2"
376a6ba5b5SSugaya Taichi #define M10V_UHS1CLK2_PARENT0 "uhs1clk2-parent0"
386a6ba5b5SSugaya Taichi #define M10V_UHS1CLK2_PARENT1 "uhs1clk2-parent1"
396a6ba5b5SSugaya Taichi #define M10V_UHS1CLK2_PARENT2 "uhs1clk2-parent2"
406a6ba5b5SSugaya Taichi #define M10V_UHS1CLK1_PARENT0 "uhs1clk1-parent0"
416a6ba5b5SSugaya Taichi #define M10V_UHS1CLK1_PARENT1 "uhs1clk1-parent1"
426a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT0 "nfclk-parent0"
436a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT1 "nfclk-parent1"
446a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT2 "nfclk-parent2"
456a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT3 "nfclk-parent3"
466a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT4 "nfclk-parent4"
476a6ba5b5SSugaya Taichi #define M10V_NFCLK_PARENT5 "nfclk-parent5"
486a6ba5b5SSugaya Taichi
496a6ba5b5SSugaya Taichi #define M10V_DCHREQ 1
506a6ba5b5SSugaya Taichi #define M10V_UPOLL_RATE 1
516a6ba5b5SSugaya Taichi #define M10V_UTIMEOUT 250
526a6ba5b5SSugaya Taichi
536a6ba5b5SSugaya Taichi #define M10V_EMMCCLK_ID 0
546a6ba5b5SSugaya Taichi #define M10V_ACLK_ID 1
556a6ba5b5SSugaya Taichi #define M10V_HCLK_ID 2
566a6ba5b5SSugaya Taichi #define M10V_PCLK_ID 3
576a6ba5b5SSugaya Taichi #define M10V_RCLK_ID 4
586a6ba5b5SSugaya Taichi #define M10V_SPICLK_ID 5
596a6ba5b5SSugaya Taichi #define M10V_NFCLK_ID 6
606a6ba5b5SSugaya Taichi #define M10V_UHS1CLK2_ID 7
616a6ba5b5SSugaya Taichi #define M10V_NUM_CLKS 8
626a6ba5b5SSugaya Taichi
636a6ba5b5SSugaya Taichi #define to_m10v_div(_hw) container_of(_hw, struct m10v_clk_divider, hw)
646a6ba5b5SSugaya Taichi
656a6ba5b5SSugaya Taichi static struct clk_hw_onecell_data *m10v_clk_data;
666a6ba5b5SSugaya Taichi
676a6ba5b5SSugaya Taichi static DEFINE_SPINLOCK(m10v_crglock);
686a6ba5b5SSugaya Taichi
696a6ba5b5SSugaya Taichi struct m10v_clk_div_factors {
706a6ba5b5SSugaya Taichi const char *name;
716a6ba5b5SSugaya Taichi const char *parent_name;
726a6ba5b5SSugaya Taichi u32 offset;
736a6ba5b5SSugaya Taichi u8 shift;
746a6ba5b5SSugaya Taichi u8 width;
756a6ba5b5SSugaya Taichi const struct clk_div_table *table;
766a6ba5b5SSugaya Taichi unsigned long div_flags;
776a6ba5b5SSugaya Taichi int onecell_idx;
786a6ba5b5SSugaya Taichi };
796a6ba5b5SSugaya Taichi
806a6ba5b5SSugaya Taichi struct m10v_clk_div_fixed_data {
816a6ba5b5SSugaya Taichi const char *name;
826a6ba5b5SSugaya Taichi const char *parent_name;
836a6ba5b5SSugaya Taichi u8 div;
846a6ba5b5SSugaya Taichi u8 mult;
856a6ba5b5SSugaya Taichi int onecell_idx;
866a6ba5b5SSugaya Taichi };
876a6ba5b5SSugaya Taichi
886a6ba5b5SSugaya Taichi struct m10v_clk_mux_factors {
896a6ba5b5SSugaya Taichi const char *name;
906a6ba5b5SSugaya Taichi const char * const *parent_names;
916a6ba5b5SSugaya Taichi u8 num_parents;
926a6ba5b5SSugaya Taichi u32 offset;
936a6ba5b5SSugaya Taichi u8 shift;
946a6ba5b5SSugaya Taichi u8 mask;
956a6ba5b5SSugaya Taichi u32 *table;
966a6ba5b5SSugaya Taichi unsigned long mux_flags;
976a6ba5b5SSugaya Taichi int onecell_idx;
986a6ba5b5SSugaya Taichi };
996a6ba5b5SSugaya Taichi
1006a6ba5b5SSugaya Taichi static const struct clk_div_table emmcclk_table[] = {
1016a6ba5b5SSugaya Taichi { .val = 0, .div = 8 },
1026a6ba5b5SSugaya Taichi { .val = 1, .div = 9 },
1036a6ba5b5SSugaya Taichi { .val = 2, .div = 10 },
1046a6ba5b5SSugaya Taichi { .val = 3, .div = 15 },
1056a6ba5b5SSugaya Taichi { .div = 0 },
1066a6ba5b5SSugaya Taichi };
1076a6ba5b5SSugaya Taichi
1086a6ba5b5SSugaya Taichi static const struct clk_div_table mclk400_table[] = {
1096a6ba5b5SSugaya Taichi { .val = 1, .div = 2 },
1106a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1116a6ba5b5SSugaya Taichi { .div = 0 },
1126a6ba5b5SSugaya Taichi };
1136a6ba5b5SSugaya Taichi
1146a6ba5b5SSugaya Taichi static const struct clk_div_table mclk200_table[] = {
1156a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1166a6ba5b5SSugaya Taichi { .val = 7, .div = 8 },
1176a6ba5b5SSugaya Taichi { .div = 0 },
1186a6ba5b5SSugaya Taichi };
1196a6ba5b5SSugaya Taichi
1206a6ba5b5SSugaya Taichi static const struct clk_div_table aclk400_table[] = {
1216a6ba5b5SSugaya Taichi { .val = 1, .div = 2 },
1226a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1236a6ba5b5SSugaya Taichi { .div = 0 },
1246a6ba5b5SSugaya Taichi };
1256a6ba5b5SSugaya Taichi
1266a6ba5b5SSugaya Taichi static const struct clk_div_table aclk300_table[] = {
1276a6ba5b5SSugaya Taichi { .val = 0, .div = 2 },
1286a6ba5b5SSugaya Taichi { .val = 1, .div = 3 },
1296a6ba5b5SSugaya Taichi { .div = 0 },
1306a6ba5b5SSugaya Taichi };
1316a6ba5b5SSugaya Taichi
1326a6ba5b5SSugaya Taichi static const struct clk_div_table aclk_table[] = {
1336a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1346a6ba5b5SSugaya Taichi { .val = 7, .div = 8 },
1356a6ba5b5SSugaya Taichi { .div = 0 },
1366a6ba5b5SSugaya Taichi };
1376a6ba5b5SSugaya Taichi
1386a6ba5b5SSugaya Taichi static const struct clk_div_table aclkexs_table[] = {
1396a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1406a6ba5b5SSugaya Taichi { .val = 4, .div = 5 },
1416a6ba5b5SSugaya Taichi { .val = 5, .div = 6 },
1426a6ba5b5SSugaya Taichi { .val = 7, .div = 8 },
1436a6ba5b5SSugaya Taichi { .div = 0 },
1446a6ba5b5SSugaya Taichi };
1456a6ba5b5SSugaya Taichi
1466a6ba5b5SSugaya Taichi static const struct clk_div_table hclk_table[] = {
1476a6ba5b5SSugaya Taichi { .val = 7, .div = 8 },
1486a6ba5b5SSugaya Taichi { .val = 15, .div = 16 },
1496a6ba5b5SSugaya Taichi { .div = 0 },
1506a6ba5b5SSugaya Taichi };
1516a6ba5b5SSugaya Taichi
1526a6ba5b5SSugaya Taichi static const struct clk_div_table hclkbmh_table[] = {
1536a6ba5b5SSugaya Taichi { .val = 3, .div = 4 },
1546a6ba5b5SSugaya Taichi { .val = 7, .div = 8 },
1556a6ba5b5SSugaya Taichi { .div = 0 },
1566a6ba5b5SSugaya Taichi };
1576a6ba5b5SSugaya Taichi
1586a6ba5b5SSugaya Taichi static const struct clk_div_table pclk_table[] = {
1596a6ba5b5SSugaya Taichi { .val = 15, .div = 16 },
1606a6ba5b5SSugaya Taichi { .val = 31, .div = 32 },
1616a6ba5b5SSugaya Taichi { .div = 0 },
1626a6ba5b5SSugaya Taichi };
1636a6ba5b5SSugaya Taichi
1646a6ba5b5SSugaya Taichi static const struct clk_div_table rclk_table[] = {
1656a6ba5b5SSugaya Taichi { .val = 0, .div = 8 },
1666a6ba5b5SSugaya Taichi { .val = 1, .div = 16 },
1676a6ba5b5SSugaya Taichi { .val = 2, .div = 24 },
1686a6ba5b5SSugaya Taichi { .val = 3, .div = 32 },
1696a6ba5b5SSugaya Taichi { .div = 0 },
1706a6ba5b5SSugaya Taichi };
1716a6ba5b5SSugaya Taichi
1726a6ba5b5SSugaya Taichi static const struct clk_div_table uhs1clk0_table[] = {
1736a6ba5b5SSugaya Taichi { .val = 0, .div = 2 },
1746a6ba5b5SSugaya Taichi { .val = 1, .div = 3 },
1756a6ba5b5SSugaya Taichi { .val = 2, .div = 4 },
1766a6ba5b5SSugaya Taichi { .val = 3, .div = 8 },
1776a6ba5b5SSugaya Taichi { .val = 4, .div = 16 },
1786a6ba5b5SSugaya Taichi { .div = 0 },
1796a6ba5b5SSugaya Taichi };
1806a6ba5b5SSugaya Taichi
1816a6ba5b5SSugaya Taichi static const struct clk_div_table uhs2clk_table[] = {
1826a6ba5b5SSugaya Taichi { .val = 0, .div = 9 },
1836a6ba5b5SSugaya Taichi { .val = 1, .div = 10 },
1846a6ba5b5SSugaya Taichi { .val = 2, .div = 11 },
1856a6ba5b5SSugaya Taichi { .val = 3, .div = 12 },
1866a6ba5b5SSugaya Taichi { .val = 4, .div = 13 },
1876a6ba5b5SSugaya Taichi { .val = 5, .div = 14 },
1886a6ba5b5SSugaya Taichi { .val = 6, .div = 16 },
1896a6ba5b5SSugaya Taichi { .val = 7, .div = 18 },
1906a6ba5b5SSugaya Taichi { .div = 0 },
1916a6ba5b5SSugaya Taichi };
1926a6ba5b5SSugaya Taichi
1936a6ba5b5SSugaya Taichi static u32 spi_mux_table[] = {0, 1, 2};
1946a6ba5b5SSugaya Taichi static const char * const spi_mux_names[] = {
1956a6ba5b5SSugaya Taichi M10V_SPI_PARENT0, M10V_SPI_PARENT1, M10V_SPI_PARENT2
1966a6ba5b5SSugaya Taichi };
1976a6ba5b5SSugaya Taichi
1986a6ba5b5SSugaya Taichi static u32 uhs1clk2_mux_table[] = {2, 3, 4, 8};
1996a6ba5b5SSugaya Taichi static const char * const uhs1clk2_mux_names[] = {
2006a6ba5b5SSugaya Taichi M10V_UHS1CLK2_PARENT0, M10V_UHS1CLK2_PARENT1,
2016a6ba5b5SSugaya Taichi M10V_UHS1CLK2_PARENT2, M10V_PLL6DIV2
2026a6ba5b5SSugaya Taichi };
2036a6ba5b5SSugaya Taichi
2046a6ba5b5SSugaya Taichi static u32 uhs1clk1_mux_table[] = {3, 4, 8};
2056a6ba5b5SSugaya Taichi static const char * const uhs1clk1_mux_names[] = {
2066a6ba5b5SSugaya Taichi M10V_UHS1CLK1_PARENT0, M10V_UHS1CLK1_PARENT1, M10V_PLL6DIV2
2076a6ba5b5SSugaya Taichi };
2086a6ba5b5SSugaya Taichi
2096a6ba5b5SSugaya Taichi static u32 nfclk_mux_table[] = {0, 1, 2, 3, 4, 8};
2106a6ba5b5SSugaya Taichi static const char * const nfclk_mux_names[] = {
2116a6ba5b5SSugaya Taichi M10V_NFCLK_PARENT0, M10V_NFCLK_PARENT1, M10V_NFCLK_PARENT2,
2126a6ba5b5SSugaya Taichi M10V_NFCLK_PARENT3, M10V_NFCLK_PARENT4, M10V_NFCLK_PARENT5
2136a6ba5b5SSugaya Taichi };
2146a6ba5b5SSugaya Taichi
2156a6ba5b5SSugaya Taichi static const struct m10v_clk_div_fixed_data m10v_pll_fixed_data[] = {
2166a6ba5b5SSugaya Taichi {M10V_PLL1, NULL, 1, 40, -1},
2176a6ba5b5SSugaya Taichi {M10V_PLL2, NULL, 1, 30, -1},
2186a6ba5b5SSugaya Taichi {M10V_PLL6, NULL, 1, 35, -1},
2196a6ba5b5SSugaya Taichi {M10V_PLL7, NULL, 1, 40, -1},
2206a6ba5b5SSugaya Taichi {M10V_PLL9, NULL, 1, 33, -1},
2216a6ba5b5SSugaya Taichi {M10V_PLL10, NULL, 5, 108, -1},
2226a6ba5b5SSugaya Taichi {M10V_PLL10DIV2, M10V_PLL10, 2, 1, -1},
2236a6ba5b5SSugaya Taichi {M10V_PLL11, NULL, 2, 75, -1},
2246a6ba5b5SSugaya Taichi };
2256a6ba5b5SSugaya Taichi
2266a6ba5b5SSugaya Taichi static const struct m10v_clk_div_fixed_data m10v_div_fixed_data[] = {
2276a6ba5b5SSugaya Taichi {"usb2", NULL, 2, 1, -1},
2286a6ba5b5SSugaya Taichi {"pcisuppclk", NULL, 20, 1, -1},
2296a6ba5b5SSugaya Taichi {M10V_PLL1DIV2, M10V_PLL1, 2, 1, -1},
2306a6ba5b5SSugaya Taichi {M10V_PLL2DIV2, M10V_PLL2, 2, 1, -1},
2316a6ba5b5SSugaya Taichi {M10V_PLL6DIV2, M10V_PLL6, 2, 1, -1},
2326a6ba5b5SSugaya Taichi {M10V_PLL6DIV3, M10V_PLL6, 3, 1, -1},
2336a6ba5b5SSugaya Taichi {M10V_PLL7DIV2, M10V_PLL7, 2, 1, -1},
2346a6ba5b5SSugaya Taichi {M10V_PLL7DIV5, M10V_PLL7, 5, 1, -1},
2356a6ba5b5SSugaya Taichi {"ca7wd", M10V_PLL2DIV2, 12, 1, -1},
2366a6ba5b5SSugaya Taichi {"pclkca7wd", M10V_PLL1DIV2, 16, 1, -1},
2376a6ba5b5SSugaya Taichi {M10V_SPI_PARENT0, M10V_PLL10DIV2, 2, 1, -1},
2386a6ba5b5SSugaya Taichi {M10V_SPI_PARENT1, M10V_PLL10DIV2, 4, 1, -1},
2396a6ba5b5SSugaya Taichi {M10V_SPI_PARENT2, M10V_PLL7DIV2, 8, 1, -1},
2406a6ba5b5SSugaya Taichi {M10V_UHS1CLK2_PARENT0, M10V_PLL7, 4, 1, -1},
2416a6ba5b5SSugaya Taichi {M10V_UHS1CLK2_PARENT1, M10V_PLL7, 8, 1, -1},
2426a6ba5b5SSugaya Taichi {M10V_UHS1CLK2_PARENT2, M10V_PLL7, 16, 1, -1},
2436a6ba5b5SSugaya Taichi {M10V_UHS1CLK1_PARENT0, M10V_PLL7, 8, 1, -1},
2446a6ba5b5SSugaya Taichi {M10V_UHS1CLK1_PARENT1, M10V_PLL7, 16, 1, -1},
2456a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT0, M10V_PLL7DIV2, 8, 1, -1},
2466a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT1, M10V_PLL7DIV2, 10, 1, -1},
2476a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT2, M10V_PLL7DIV2, 13, 1, -1},
2486a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT3, M10V_PLL7DIV2, 16, 1, -1},
2496a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT4, M10V_PLL7DIV2, 40, 1, -1},
2506a6ba5b5SSugaya Taichi {M10V_NFCLK_PARENT5, M10V_PLL7DIV5, 10, 1, -1},
2516a6ba5b5SSugaya Taichi };
2526a6ba5b5SSugaya Taichi
2536a6ba5b5SSugaya Taichi static const struct m10v_clk_div_factors m10v_div_factor_data[] = {
2546a6ba5b5SSugaya Taichi {"emmc", M10V_PLL11, CLKSEL(1), 28, 3, emmcclk_table, 0,
2556a6ba5b5SSugaya Taichi M10V_EMMCCLK_ID},
2566a6ba5b5SSugaya Taichi {"mclk400", M10V_PLL1DIV2, CLKSEL(10), 7, 3, mclk400_table, 0, -1},
2576a6ba5b5SSugaya Taichi {"mclk200", M10V_PLL1DIV2, CLKSEL(10), 3, 4, mclk200_table, 0, -1},
2586a6ba5b5SSugaya Taichi {"aclk400", M10V_PLL1DIV2, CLKSEL(10), 0, 3, aclk400_table, 0, -1},
2596a6ba5b5SSugaya Taichi {"aclk300", M10V_PLL2DIV2, CLKSEL(12), 0, 2, aclk300_table, 0, -1},
2606a6ba5b5SSugaya Taichi {"aclk", M10V_PLL1DIV2, CLKSEL(9), 20, 4, aclk_table, 0, M10V_ACLK_ID},
2616a6ba5b5SSugaya Taichi {"aclkexs", M10V_PLL1DIV2, CLKSEL(9), 16, 4, aclkexs_table, 0, -1},
2626a6ba5b5SSugaya Taichi {"hclk", M10V_PLL1DIV2, CLKSEL(9), 7, 5, hclk_table, 0, M10V_HCLK_ID},
2636a6ba5b5SSugaya Taichi {"hclkbmh", M10V_PLL1DIV2, CLKSEL(9), 12, 4, hclkbmh_table, 0, -1},
2646a6ba5b5SSugaya Taichi {"pclk", M10V_PLL1DIV2, CLKSEL(9), 0, 7, pclk_table, 0, M10V_PCLK_ID},
2656a6ba5b5SSugaya Taichi {"uhs1clk0", M10V_PLL7, CLKSEL(1), 3, 5, uhs1clk0_table, 0, -1},
2666a6ba5b5SSugaya Taichi {"uhs2clk", M10V_PLL6DIV3, CLKSEL(1), 18, 4, uhs2clk_table, 0, -1},
2676a6ba5b5SSugaya Taichi };
2686a6ba5b5SSugaya Taichi
2696a6ba5b5SSugaya Taichi static const struct m10v_clk_mux_factors m10v_mux_factor_data[] = {
2706a6ba5b5SSugaya Taichi {"spi", spi_mux_names, ARRAY_SIZE(spi_mux_names),
2716a6ba5b5SSugaya Taichi CLKSEL(8), 3, 7, spi_mux_table, 0, M10V_SPICLK_ID},
2726a6ba5b5SSugaya Taichi {"uhs1clk2", uhs1clk2_mux_names, ARRAY_SIZE(uhs1clk2_mux_names),
2736a6ba5b5SSugaya Taichi CLKSEL(1), 13, 31, uhs1clk2_mux_table, 0, M10V_UHS1CLK2_ID},
2746a6ba5b5SSugaya Taichi {"uhs1clk1", uhs1clk1_mux_names, ARRAY_SIZE(uhs1clk1_mux_names),
2756a6ba5b5SSugaya Taichi CLKSEL(1), 8, 31, uhs1clk1_mux_table, 0, -1},
2766a6ba5b5SSugaya Taichi {"nfclk", nfclk_mux_names, ARRAY_SIZE(nfclk_mux_names),
2776a6ba5b5SSugaya Taichi CLKSEL(1), 22, 127, nfclk_mux_table, 0, M10V_NFCLK_ID},
2786a6ba5b5SSugaya Taichi };
2796a6ba5b5SSugaya Taichi
m10v_mux_get_parent(struct clk_hw * hw)2806a6ba5b5SSugaya Taichi static u8 m10v_mux_get_parent(struct clk_hw *hw)
2816a6ba5b5SSugaya Taichi {
2826a6ba5b5SSugaya Taichi struct clk_mux *mux = to_clk_mux(hw);
2836a6ba5b5SSugaya Taichi u32 val;
2846a6ba5b5SSugaya Taichi
2856a6ba5b5SSugaya Taichi val = readl(mux->reg) >> mux->shift;
2866a6ba5b5SSugaya Taichi val &= mux->mask;
2876a6ba5b5SSugaya Taichi
2886a6ba5b5SSugaya Taichi return clk_mux_val_to_index(hw, mux->table, mux->flags, val);
2896a6ba5b5SSugaya Taichi }
2906a6ba5b5SSugaya Taichi
m10v_mux_set_parent(struct clk_hw * hw,u8 index)2916a6ba5b5SSugaya Taichi static int m10v_mux_set_parent(struct clk_hw *hw, u8 index)
2926a6ba5b5SSugaya Taichi {
2936a6ba5b5SSugaya Taichi struct clk_mux *mux = to_clk_mux(hw);
2946a6ba5b5SSugaya Taichi u32 val = clk_mux_index_to_val(mux->table, mux->flags, index);
2956a6ba5b5SSugaya Taichi unsigned long flags = 0;
2966a6ba5b5SSugaya Taichi u32 reg;
2976a6ba5b5SSugaya Taichi u32 write_en = BIT(fls(mux->mask) - 1);
2986a6ba5b5SSugaya Taichi
2996a6ba5b5SSugaya Taichi if (mux->lock)
3006a6ba5b5SSugaya Taichi spin_lock_irqsave(mux->lock, flags);
3016a6ba5b5SSugaya Taichi else
3026a6ba5b5SSugaya Taichi __acquire(mux->lock);
3036a6ba5b5SSugaya Taichi
3046a6ba5b5SSugaya Taichi reg = readl(mux->reg);
3056a6ba5b5SSugaya Taichi reg &= ~(mux->mask << mux->shift);
3066a6ba5b5SSugaya Taichi
3076a6ba5b5SSugaya Taichi val = (val | write_en) << mux->shift;
3086a6ba5b5SSugaya Taichi reg |= val;
3096a6ba5b5SSugaya Taichi writel(reg, mux->reg);
3106a6ba5b5SSugaya Taichi
3116a6ba5b5SSugaya Taichi if (mux->lock)
3126a6ba5b5SSugaya Taichi spin_unlock_irqrestore(mux->lock, flags);
3136a6ba5b5SSugaya Taichi else
3146a6ba5b5SSugaya Taichi __release(mux->lock);
3156a6ba5b5SSugaya Taichi
3166a6ba5b5SSugaya Taichi return 0;
3176a6ba5b5SSugaya Taichi }
3186a6ba5b5SSugaya Taichi
3196a6ba5b5SSugaya Taichi static const struct clk_ops m10v_mux_ops = {
3206a6ba5b5SSugaya Taichi .get_parent = m10v_mux_get_parent,
3216a6ba5b5SSugaya Taichi .set_parent = m10v_mux_set_parent,
3226a6ba5b5SSugaya Taichi .determine_rate = __clk_mux_determine_rate,
3236a6ba5b5SSugaya Taichi };
3246a6ba5b5SSugaya Taichi
m10v_clk_hw_register_mux(struct device * dev,const char * name,const char * const * parent_names,u8 num_parents,unsigned long flags,void __iomem * reg,u8 shift,u32 mask,u8 clk_mux_flags,u32 * table,spinlock_t * lock)3256a6ba5b5SSugaya Taichi static struct clk_hw *m10v_clk_hw_register_mux(struct device *dev,
3266a6ba5b5SSugaya Taichi const char *name, const char * const *parent_names,
3276a6ba5b5SSugaya Taichi u8 num_parents, unsigned long flags, void __iomem *reg,
3286a6ba5b5SSugaya Taichi u8 shift, u32 mask, u8 clk_mux_flags, u32 *table,
3296a6ba5b5SSugaya Taichi spinlock_t *lock)
3306a6ba5b5SSugaya Taichi {
3316a6ba5b5SSugaya Taichi struct clk_mux *mux;
3326a6ba5b5SSugaya Taichi struct clk_hw *hw;
3336a6ba5b5SSugaya Taichi struct clk_init_data init;
3346a6ba5b5SSugaya Taichi int ret;
3356a6ba5b5SSugaya Taichi
3366a6ba5b5SSugaya Taichi mux = kzalloc(sizeof(*mux), GFP_KERNEL);
3376a6ba5b5SSugaya Taichi if (!mux)
3386a6ba5b5SSugaya Taichi return ERR_PTR(-ENOMEM);
3396a6ba5b5SSugaya Taichi
3406a6ba5b5SSugaya Taichi init.name = name;
3416a6ba5b5SSugaya Taichi init.ops = &m10v_mux_ops;
3426a6ba5b5SSugaya Taichi init.flags = flags;
3436a6ba5b5SSugaya Taichi init.parent_names = parent_names;
3446a6ba5b5SSugaya Taichi init.num_parents = num_parents;
3456a6ba5b5SSugaya Taichi
3466a6ba5b5SSugaya Taichi mux->reg = reg;
3476a6ba5b5SSugaya Taichi mux->shift = shift;
3486a6ba5b5SSugaya Taichi mux->mask = mask;
3496a6ba5b5SSugaya Taichi mux->flags = clk_mux_flags;
3506a6ba5b5SSugaya Taichi mux->lock = lock;
3516a6ba5b5SSugaya Taichi mux->table = table;
3526a6ba5b5SSugaya Taichi mux->hw.init = &init;
3536a6ba5b5SSugaya Taichi
3546a6ba5b5SSugaya Taichi hw = &mux->hw;
3556a6ba5b5SSugaya Taichi ret = clk_hw_register(dev, hw);
3566a6ba5b5SSugaya Taichi if (ret) {
3576a6ba5b5SSugaya Taichi kfree(mux);
3586a6ba5b5SSugaya Taichi hw = ERR_PTR(ret);
3596a6ba5b5SSugaya Taichi }
3606a6ba5b5SSugaya Taichi
3616a6ba5b5SSugaya Taichi return hw;
3626a6ba5b5SSugaya Taichi
3636a6ba5b5SSugaya Taichi }
3646a6ba5b5SSugaya Taichi
3656a6ba5b5SSugaya Taichi struct m10v_clk_divider {
3666a6ba5b5SSugaya Taichi struct clk_hw hw;
3676a6ba5b5SSugaya Taichi void __iomem *reg;
3686a6ba5b5SSugaya Taichi u8 shift;
3696a6ba5b5SSugaya Taichi u8 width;
3706a6ba5b5SSugaya Taichi u8 flags;
3716a6ba5b5SSugaya Taichi const struct clk_div_table *table;
3726a6ba5b5SSugaya Taichi spinlock_t *lock;
3736a6ba5b5SSugaya Taichi void __iomem *write_valid_reg;
3746a6ba5b5SSugaya Taichi };
3756a6ba5b5SSugaya Taichi
m10v_clk_divider_recalc_rate(struct clk_hw * hw,unsigned long parent_rate)3766a6ba5b5SSugaya Taichi static unsigned long m10v_clk_divider_recalc_rate(struct clk_hw *hw,
3776a6ba5b5SSugaya Taichi unsigned long parent_rate)
3786a6ba5b5SSugaya Taichi {
3796a6ba5b5SSugaya Taichi struct m10v_clk_divider *divider = to_m10v_div(hw);
3806a6ba5b5SSugaya Taichi unsigned int val;
3816a6ba5b5SSugaya Taichi
3826a6ba5b5SSugaya Taichi val = readl(divider->reg) >> divider->shift;
3836a6ba5b5SSugaya Taichi val &= clk_div_mask(divider->width);
3846a6ba5b5SSugaya Taichi
3856a6ba5b5SSugaya Taichi return divider_recalc_rate(hw, parent_rate, val, divider->table,
3866a6ba5b5SSugaya Taichi divider->flags, divider->width);
3876a6ba5b5SSugaya Taichi }
3886a6ba5b5SSugaya Taichi
m10v_clk_divider_round_rate(struct clk_hw * hw,unsigned long rate,unsigned long * prate)3896a6ba5b5SSugaya Taichi static long m10v_clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
3906a6ba5b5SSugaya Taichi unsigned long *prate)
3916a6ba5b5SSugaya Taichi {
3926a6ba5b5SSugaya Taichi struct m10v_clk_divider *divider = to_m10v_div(hw);
3936a6ba5b5SSugaya Taichi
3946a6ba5b5SSugaya Taichi /* if read only, just return current value */
3956a6ba5b5SSugaya Taichi if (divider->flags & CLK_DIVIDER_READ_ONLY) {
3966a6ba5b5SSugaya Taichi u32 val;
3976a6ba5b5SSugaya Taichi
3986a6ba5b5SSugaya Taichi val = readl(divider->reg) >> divider->shift;
3996a6ba5b5SSugaya Taichi val &= clk_div_mask(divider->width);
4006a6ba5b5SSugaya Taichi
4016a6ba5b5SSugaya Taichi return divider_ro_round_rate(hw, rate, prate, divider->table,
4026a6ba5b5SSugaya Taichi divider->width, divider->flags,
4036a6ba5b5SSugaya Taichi val);
4046a6ba5b5SSugaya Taichi }
4056a6ba5b5SSugaya Taichi
4066a6ba5b5SSugaya Taichi return divider_round_rate(hw, rate, prate, divider->table,
4076a6ba5b5SSugaya Taichi divider->width, divider->flags);
4086a6ba5b5SSugaya Taichi }
4096a6ba5b5SSugaya Taichi
m10v_clk_divider_set_rate(struct clk_hw * hw,unsigned long rate,unsigned long parent_rate)4106a6ba5b5SSugaya Taichi static int m10v_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
4116a6ba5b5SSugaya Taichi unsigned long parent_rate)
4126a6ba5b5SSugaya Taichi {
4136a6ba5b5SSugaya Taichi struct m10v_clk_divider *divider = to_m10v_div(hw);
4146a6ba5b5SSugaya Taichi int value;
4156a6ba5b5SSugaya Taichi unsigned long flags = 0;
4166a6ba5b5SSugaya Taichi u32 val;
4176a6ba5b5SSugaya Taichi u32 write_en = BIT(divider->width - 1);
4186a6ba5b5SSugaya Taichi
4196a6ba5b5SSugaya Taichi value = divider_get_val(rate, parent_rate, divider->table,
4206a6ba5b5SSugaya Taichi divider->width, divider->flags);
4216a6ba5b5SSugaya Taichi if (value < 0)
4226a6ba5b5SSugaya Taichi return value;
4236a6ba5b5SSugaya Taichi
4246a6ba5b5SSugaya Taichi if (divider->lock)
4256a6ba5b5SSugaya Taichi spin_lock_irqsave(divider->lock, flags);
4266a6ba5b5SSugaya Taichi else
4276a6ba5b5SSugaya Taichi __acquire(divider->lock);
4286a6ba5b5SSugaya Taichi
4296a6ba5b5SSugaya Taichi val = readl(divider->reg);
4306a6ba5b5SSugaya Taichi val &= ~(clk_div_mask(divider->width) << divider->shift);
4316a6ba5b5SSugaya Taichi
4326a6ba5b5SSugaya Taichi val |= ((u32)value | write_en) << divider->shift;
4336a6ba5b5SSugaya Taichi writel(val, divider->reg);
4346a6ba5b5SSugaya Taichi
4356a6ba5b5SSugaya Taichi if (divider->write_valid_reg) {
4366a6ba5b5SSugaya Taichi writel(M10V_DCHREQ, divider->write_valid_reg);
4376a6ba5b5SSugaya Taichi if (readl_poll_timeout(divider->write_valid_reg, val,
4386a6ba5b5SSugaya Taichi !val, M10V_UPOLL_RATE, M10V_UTIMEOUT))
4396a6ba5b5SSugaya Taichi pr_err("%s:%s couldn't stabilize\n",
440c8cec4f4SStephen Boyd __func__, clk_hw_get_name(hw));
4416a6ba5b5SSugaya Taichi }
4426a6ba5b5SSugaya Taichi
4436a6ba5b5SSugaya Taichi if (divider->lock)
4446a6ba5b5SSugaya Taichi spin_unlock_irqrestore(divider->lock, flags);
4456a6ba5b5SSugaya Taichi else
4466a6ba5b5SSugaya Taichi __release(divider->lock);
4476a6ba5b5SSugaya Taichi
4486a6ba5b5SSugaya Taichi return 0;
4496a6ba5b5SSugaya Taichi }
4506a6ba5b5SSugaya Taichi
4516a6ba5b5SSugaya Taichi static const struct clk_ops m10v_clk_divider_ops = {
4526a6ba5b5SSugaya Taichi .recalc_rate = m10v_clk_divider_recalc_rate,
4536a6ba5b5SSugaya Taichi .round_rate = m10v_clk_divider_round_rate,
4546a6ba5b5SSugaya Taichi .set_rate = m10v_clk_divider_set_rate,
4556a6ba5b5SSugaya Taichi };
4566a6ba5b5SSugaya Taichi
m10v_clk_hw_register_divider(struct device * dev,const char * name,const char * parent_name,unsigned long flags,void __iomem * reg,u8 shift,u8 width,u8 clk_divider_flags,const struct clk_div_table * table,spinlock_t * lock,void __iomem * write_valid_reg)4576a6ba5b5SSugaya Taichi static struct clk_hw *m10v_clk_hw_register_divider(struct device *dev,
4586a6ba5b5SSugaya Taichi const char *name, const char *parent_name, unsigned long flags,
4596a6ba5b5SSugaya Taichi void __iomem *reg, u8 shift, u8 width,
4606a6ba5b5SSugaya Taichi u8 clk_divider_flags, const struct clk_div_table *table,
4616a6ba5b5SSugaya Taichi spinlock_t *lock, void __iomem *write_valid_reg)
4626a6ba5b5SSugaya Taichi {
4636a6ba5b5SSugaya Taichi struct m10v_clk_divider *div;
4646a6ba5b5SSugaya Taichi struct clk_hw *hw;
4656a6ba5b5SSugaya Taichi struct clk_init_data init;
4666a6ba5b5SSugaya Taichi int ret;
4676a6ba5b5SSugaya Taichi
4686a6ba5b5SSugaya Taichi div = kzalloc(sizeof(*div), GFP_KERNEL);
4696a6ba5b5SSugaya Taichi if (!div)
4706a6ba5b5SSugaya Taichi return ERR_PTR(-ENOMEM);
4716a6ba5b5SSugaya Taichi
4726a6ba5b5SSugaya Taichi init.name = name;
4736a6ba5b5SSugaya Taichi init.ops = &m10v_clk_divider_ops;
4746a6ba5b5SSugaya Taichi init.flags = flags;
4756a6ba5b5SSugaya Taichi init.parent_names = &parent_name;
4766a6ba5b5SSugaya Taichi init.num_parents = 1;
4776a6ba5b5SSugaya Taichi
4786a6ba5b5SSugaya Taichi div->reg = reg;
4796a6ba5b5SSugaya Taichi div->shift = shift;
4806a6ba5b5SSugaya Taichi div->width = width;
4816a6ba5b5SSugaya Taichi div->flags = clk_divider_flags;
4826a6ba5b5SSugaya Taichi div->lock = lock;
4836a6ba5b5SSugaya Taichi div->hw.init = &init;
4846a6ba5b5SSugaya Taichi div->table = table;
4856a6ba5b5SSugaya Taichi div->write_valid_reg = write_valid_reg;
4866a6ba5b5SSugaya Taichi
4876a6ba5b5SSugaya Taichi /* register the clock */
4886a6ba5b5SSugaya Taichi hw = &div->hw;
4896a6ba5b5SSugaya Taichi ret = clk_hw_register(dev, hw);
4906a6ba5b5SSugaya Taichi if (ret) {
4916a6ba5b5SSugaya Taichi kfree(div);
4926a6ba5b5SSugaya Taichi hw = ERR_PTR(ret);
4936a6ba5b5SSugaya Taichi }
4946a6ba5b5SSugaya Taichi
4956a6ba5b5SSugaya Taichi return hw;
4966a6ba5b5SSugaya Taichi }
4976a6ba5b5SSugaya Taichi
m10v_reg_div_pre(const struct m10v_clk_div_factors * factors,struct clk_hw_onecell_data * clk_data,void __iomem * base)4986a6ba5b5SSugaya Taichi static void m10v_reg_div_pre(const struct m10v_clk_div_factors *factors,
4996a6ba5b5SSugaya Taichi struct clk_hw_onecell_data *clk_data,
5006a6ba5b5SSugaya Taichi void __iomem *base)
5016a6ba5b5SSugaya Taichi {
5026a6ba5b5SSugaya Taichi struct clk_hw *hw;
5036a6ba5b5SSugaya Taichi void __iomem *write_valid_reg;
5046a6ba5b5SSugaya Taichi
5056a6ba5b5SSugaya Taichi /*
5066a6ba5b5SSugaya Taichi * The registers on CLKSEL(9) or CLKSEL(10) need additional
5076a6ba5b5SSugaya Taichi * writing to become valid.
5086a6ba5b5SSugaya Taichi */
5096a6ba5b5SSugaya Taichi if ((factors->offset == CLKSEL(9)) || (factors->offset == CLKSEL(10)))
5106a6ba5b5SSugaya Taichi write_valid_reg = base + CLKSEL(11);
5116a6ba5b5SSugaya Taichi else
5126a6ba5b5SSugaya Taichi write_valid_reg = NULL;
5136a6ba5b5SSugaya Taichi
5146a6ba5b5SSugaya Taichi hw = m10v_clk_hw_register_divider(NULL, factors->name,
5156a6ba5b5SSugaya Taichi factors->parent_name,
5166a6ba5b5SSugaya Taichi CLK_SET_RATE_PARENT,
5176a6ba5b5SSugaya Taichi base + factors->offset,
5186a6ba5b5SSugaya Taichi factors->shift,
5196a6ba5b5SSugaya Taichi factors->width, factors->div_flags,
5206a6ba5b5SSugaya Taichi factors->table,
5216a6ba5b5SSugaya Taichi &m10v_crglock, write_valid_reg);
5226a6ba5b5SSugaya Taichi
5236a6ba5b5SSugaya Taichi if (factors->onecell_idx >= 0)
5246a6ba5b5SSugaya Taichi clk_data->hws[factors->onecell_idx] = hw;
5256a6ba5b5SSugaya Taichi }
5266a6ba5b5SSugaya Taichi
m10v_reg_fixed_pre(const struct m10v_clk_div_fixed_data * factors,struct clk_hw_onecell_data * clk_data,const char * parent_name)5276a6ba5b5SSugaya Taichi static void m10v_reg_fixed_pre(const struct m10v_clk_div_fixed_data *factors,
5286a6ba5b5SSugaya Taichi struct clk_hw_onecell_data *clk_data,
5296a6ba5b5SSugaya Taichi const char *parent_name)
5306a6ba5b5SSugaya Taichi {
5316a6ba5b5SSugaya Taichi struct clk_hw *hw;
5326a6ba5b5SSugaya Taichi const char *pn = factors->parent_name ?
5336a6ba5b5SSugaya Taichi factors->parent_name : parent_name;
5346a6ba5b5SSugaya Taichi
5356a6ba5b5SSugaya Taichi hw = clk_hw_register_fixed_factor(NULL, factors->name, pn, 0,
5366a6ba5b5SSugaya Taichi factors->mult, factors->div);
5376a6ba5b5SSugaya Taichi
5386a6ba5b5SSugaya Taichi if (factors->onecell_idx >= 0)
5396a6ba5b5SSugaya Taichi clk_data->hws[factors->onecell_idx] = hw;
5406a6ba5b5SSugaya Taichi }
5416a6ba5b5SSugaya Taichi
m10v_reg_mux_pre(const struct m10v_clk_mux_factors * factors,struct clk_hw_onecell_data * clk_data,void __iomem * base)5426a6ba5b5SSugaya Taichi static void m10v_reg_mux_pre(const struct m10v_clk_mux_factors *factors,
5436a6ba5b5SSugaya Taichi struct clk_hw_onecell_data *clk_data,
5446a6ba5b5SSugaya Taichi void __iomem *base)
5456a6ba5b5SSugaya Taichi {
5466a6ba5b5SSugaya Taichi struct clk_hw *hw;
5476a6ba5b5SSugaya Taichi
5486a6ba5b5SSugaya Taichi hw = m10v_clk_hw_register_mux(NULL, factors->name,
5496a6ba5b5SSugaya Taichi factors->parent_names,
5506a6ba5b5SSugaya Taichi factors->num_parents,
5516a6ba5b5SSugaya Taichi CLK_SET_RATE_PARENT,
5526a6ba5b5SSugaya Taichi base + factors->offset, factors->shift,
5536a6ba5b5SSugaya Taichi factors->mask, factors->mux_flags,
5546a6ba5b5SSugaya Taichi factors->table, &m10v_crglock);
5556a6ba5b5SSugaya Taichi
5566a6ba5b5SSugaya Taichi if (factors->onecell_idx >= 0)
5576a6ba5b5SSugaya Taichi clk_data->hws[factors->onecell_idx] = hw;
5586a6ba5b5SSugaya Taichi }
5596a6ba5b5SSugaya Taichi
m10v_clk_probe(struct platform_device * pdev)5606a6ba5b5SSugaya Taichi static int m10v_clk_probe(struct platform_device *pdev)
5616a6ba5b5SSugaya Taichi {
5626a6ba5b5SSugaya Taichi int id;
5636a6ba5b5SSugaya Taichi struct device *dev = &pdev->dev;
5646a6ba5b5SSugaya Taichi struct device_node *np = dev->of_node;
5656a6ba5b5SSugaya Taichi void __iomem *base;
5666a6ba5b5SSugaya Taichi const char *parent_name;
5676a6ba5b5SSugaya Taichi
5686cba789fSMinghao Chi base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
5696a6ba5b5SSugaya Taichi if (IS_ERR(base))
5706a6ba5b5SSugaya Taichi return PTR_ERR(base);
5716a6ba5b5SSugaya Taichi
5726a6ba5b5SSugaya Taichi parent_name = of_clk_get_parent_name(np, 0);
5736a6ba5b5SSugaya Taichi
5746a6ba5b5SSugaya Taichi for (id = 0; id < ARRAY_SIZE(m10v_div_factor_data); ++id)
5756a6ba5b5SSugaya Taichi m10v_reg_div_pre(&m10v_div_factor_data[id],
5766a6ba5b5SSugaya Taichi m10v_clk_data, base);
5776a6ba5b5SSugaya Taichi
5786a6ba5b5SSugaya Taichi for (id = 0; id < ARRAY_SIZE(m10v_div_fixed_data); ++id)
5796a6ba5b5SSugaya Taichi m10v_reg_fixed_pre(&m10v_div_fixed_data[id],
5806a6ba5b5SSugaya Taichi m10v_clk_data, parent_name);
5816a6ba5b5SSugaya Taichi
5826a6ba5b5SSugaya Taichi for (id = 0; id < ARRAY_SIZE(m10v_mux_factor_data); ++id)
5836a6ba5b5SSugaya Taichi m10v_reg_mux_pre(&m10v_mux_factor_data[id],
5846a6ba5b5SSugaya Taichi m10v_clk_data, base);
5856a6ba5b5SSugaya Taichi
5866a6ba5b5SSugaya Taichi for (id = 0; id < M10V_NUM_CLKS; id++) {
5876a6ba5b5SSugaya Taichi if (IS_ERR(m10v_clk_data->hws[id]))
5886a6ba5b5SSugaya Taichi return PTR_ERR(m10v_clk_data->hws[id]);
5896a6ba5b5SSugaya Taichi }
5906a6ba5b5SSugaya Taichi
5916a6ba5b5SSugaya Taichi return 0;
5926a6ba5b5SSugaya Taichi }
5936a6ba5b5SSugaya Taichi
5946a6ba5b5SSugaya Taichi static const struct of_device_id m10v_clk_dt_ids[] = {
5956a6ba5b5SSugaya Taichi { .compatible = "socionext,milbeaut-m10v-ccu", },
5966a6ba5b5SSugaya Taichi { }
5976a6ba5b5SSugaya Taichi };
5986a6ba5b5SSugaya Taichi
5996a6ba5b5SSugaya Taichi static struct platform_driver m10v_clk_driver = {
6006a6ba5b5SSugaya Taichi .probe = m10v_clk_probe,
6016a6ba5b5SSugaya Taichi .driver = {
6026a6ba5b5SSugaya Taichi .name = "m10v-ccu",
6036a6ba5b5SSugaya Taichi .of_match_table = m10v_clk_dt_ids,
6046a6ba5b5SSugaya Taichi },
6056a6ba5b5SSugaya Taichi };
6066a6ba5b5SSugaya Taichi builtin_platform_driver(m10v_clk_driver);
6076a6ba5b5SSugaya Taichi
m10v_cc_init(struct device_node * np)6086a6ba5b5SSugaya Taichi static void __init m10v_cc_init(struct device_node *np)
6096a6ba5b5SSugaya Taichi {
6106a6ba5b5SSugaya Taichi int id;
6116a6ba5b5SSugaya Taichi void __iomem *base;
6126a6ba5b5SSugaya Taichi const char *parent_name;
6136a6ba5b5SSugaya Taichi struct clk_hw *hw;
6146a6ba5b5SSugaya Taichi
6156a6ba5b5SSugaya Taichi m10v_clk_data = kzalloc(struct_size(m10v_clk_data, hws,
6166a6ba5b5SSugaya Taichi M10V_NUM_CLKS),
6176a6ba5b5SSugaya Taichi GFP_KERNEL);
6186a6ba5b5SSugaya Taichi
6196a6ba5b5SSugaya Taichi if (!m10v_clk_data)
6206a6ba5b5SSugaya Taichi return;
621*f316cdffSKees Cook m10v_clk_data->num = M10V_NUM_CLKS;
6226a6ba5b5SSugaya Taichi
6236a6ba5b5SSugaya Taichi base = of_iomap(np, 0);
6246a6ba5b5SSugaya Taichi if (!base) {
6256a6ba5b5SSugaya Taichi kfree(m10v_clk_data);
6266a6ba5b5SSugaya Taichi return;
6276a6ba5b5SSugaya Taichi }
6286a6ba5b5SSugaya Taichi
6296a6ba5b5SSugaya Taichi parent_name = of_clk_get_parent_name(np, 0);
6306a6ba5b5SSugaya Taichi if (!parent_name) {
6316a6ba5b5SSugaya Taichi kfree(m10v_clk_data);
6326a6ba5b5SSugaya Taichi iounmap(base);
6336a6ba5b5SSugaya Taichi return;
6346a6ba5b5SSugaya Taichi }
6356a6ba5b5SSugaya Taichi
6366a6ba5b5SSugaya Taichi /*
6376a6ba5b5SSugaya Taichi * This way all clocks fetched before the platform device probes,
6386a6ba5b5SSugaya Taichi * except those we assign here for early use, will be deferred.
6396a6ba5b5SSugaya Taichi */
6406a6ba5b5SSugaya Taichi for (id = 0; id < M10V_NUM_CLKS; id++)
6416a6ba5b5SSugaya Taichi m10v_clk_data->hws[id] = ERR_PTR(-EPROBE_DEFER);
6426a6ba5b5SSugaya Taichi
6436a6ba5b5SSugaya Taichi /*
6446a6ba5b5SSugaya Taichi * PLLs are set by bootloader so this driver registers them as the
6456a6ba5b5SSugaya Taichi * fixed factor.
6466a6ba5b5SSugaya Taichi */
6476a6ba5b5SSugaya Taichi for (id = 0; id < ARRAY_SIZE(m10v_pll_fixed_data); ++id)
6486a6ba5b5SSugaya Taichi m10v_reg_fixed_pre(&m10v_pll_fixed_data[id],
6496a6ba5b5SSugaya Taichi m10v_clk_data, parent_name);
6506a6ba5b5SSugaya Taichi
6516a6ba5b5SSugaya Taichi /*
6526a6ba5b5SSugaya Taichi * timer consumes "rclk" so it needs to register here.
6536a6ba5b5SSugaya Taichi */
6546a6ba5b5SSugaya Taichi hw = m10v_clk_hw_register_divider(NULL, "rclk", M10V_PLL10DIV2, 0,
6556a6ba5b5SSugaya Taichi base + CLKSEL(1), 0, 3, 0, rclk_table,
6566a6ba5b5SSugaya Taichi &m10v_crglock, NULL);
6576a6ba5b5SSugaya Taichi m10v_clk_data->hws[M10V_RCLK_ID] = hw;
6586a6ba5b5SSugaya Taichi of_clk_add_hw_provider(np, of_clk_hw_onecell_get, m10v_clk_data);
6596a6ba5b5SSugaya Taichi }
6606a6ba5b5SSugaya Taichi CLK_OF_DECLARE_DRIVER(m10v_cc, "socionext,milbeaut-m10v-ccu", m10v_cc_init);
661