summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c')
-rw-r--r--arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c523
1 files changed, 523 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c b/arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c
new file mode 100644
index 0000000000..bc8a170b40
--- /dev/null
+++ b/arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c
@@ -0,0 +1,523 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ *
+ * bcm281xx-specific clock tables
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+#define CLOCK_1K 1000
+#define CLOCK_1M (CLOCK_1K * 1000)
+
+/* declare a reference clock */
+#define DECLARE_REF_CLK(clk_name, clk_parent, clk_rate, clk_div) \
+static struct refclk clk_name = { \
+ .clk = { \
+ .name = #clk_name, \
+ .parent = clk_parent, \
+ .rate = clk_rate, \
+ .div = clk_div, \
+ .ops = &ref_clk_ops, \
+ }, \
+}
+
+/*
+ * Reference clocks
+ */
+
+/* Declare a list of reference clocks */
+DECLARE_REF_CLK(ref_crystal, 0, 26 * CLOCK_1M, 1);
+DECLARE_REF_CLK(var_96m, 0, 96 * CLOCK_1M, 1);
+DECLARE_REF_CLK(ref_96m, 0, 96 * CLOCK_1M, 1);
+DECLARE_REF_CLK(ref_312m, 0, 312 * CLOCK_1M, 0);
+DECLARE_REF_CLK(ref_104m, &ref_312m.clk, 104 * CLOCK_1M, 3);
+DECLARE_REF_CLK(ref_52m, &ref_104m.clk, 52 * CLOCK_1M, 2);
+DECLARE_REF_CLK(ref_13m, &ref_52m.clk, 13 * CLOCK_1M, 4);
+DECLARE_REF_CLK(var_312m, 0, 312 * CLOCK_1M, 0);
+DECLARE_REF_CLK(var_104m, &var_312m.clk, 104 * CLOCK_1M, 3);
+DECLARE_REF_CLK(var_52m, &var_104m.clk, 52 * CLOCK_1M, 2);
+DECLARE_REF_CLK(var_13m, &var_52m.clk, 13 * CLOCK_1M, 4);
+
+struct refclk_lkup {
+ struct refclk *procclk;
+ const char *name;
+};
+
+/* Lookup table for string to clk tranlation */
+#define MKSTR(x) {&x, #x}
+static struct refclk_lkup refclk_str_tbl[] = {
+ MKSTR(ref_crystal), MKSTR(var_96m), MKSTR(ref_96m),
+ MKSTR(ref_312m), MKSTR(ref_104m), MKSTR(ref_52m),
+ MKSTR(ref_13m), MKSTR(var_312m), MKSTR(var_104m),
+ MKSTR(var_52m), MKSTR(var_13m),
+};
+
+int refclk_entries = sizeof(refclk_str_tbl)/sizeof(refclk_str_tbl[0]);
+
+/* convert ref clock string to clock structure pointer */
+struct refclk *refclk_str_to_clk(const char *name)
+{
+ int i;
+ struct refclk_lkup *tblp = refclk_str_tbl;
+ for (i = 0; i < refclk_entries; i++, tblp++) {
+ if (!(strcmp(name, tblp->name)))
+ return tblp->procclk;
+ }
+ return NULL;
+}
+
+/* frequency tables indexed by freq_id */
+unsigned long master_axi_freq_tbl[8] = {
+ 26 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 104 * CLOCK_1M,
+ 156 * CLOCK_1M,
+ 156 * CLOCK_1M,
+ 208 * CLOCK_1M,
+ 312 * CLOCK_1M,
+ 312 * CLOCK_1M
+};
+
+unsigned long master_ahb_freq_tbl[8] = {
+ 26 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 78 * CLOCK_1M,
+ 104 * CLOCK_1M,
+ 104 * CLOCK_1M,
+ 156 * CLOCK_1M
+};
+
+unsigned long slave_axi_freq_tbl[8] = {
+ 26 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 78 * CLOCK_1M,
+ 104 * CLOCK_1M,
+ 156 * CLOCK_1M,
+ 156 * CLOCK_1M
+};
+
+unsigned long slave_apb_freq_tbl[8] = {
+ 26 * CLOCK_1M,
+ 26 * CLOCK_1M,
+ 39 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 52 * CLOCK_1M,
+ 78 * CLOCK_1M
+};
+
+static struct bus_clk_data bsc1_apb_data = {
+ .gate = HW_SW_GATE_AUTO(0x0458, 16, 0, 1),
+};
+
+static struct bus_clk_data bsc2_apb_data = {
+ .gate = HW_SW_GATE_AUTO(0x045c, 16, 0, 1),
+};
+
+static struct bus_clk_data bsc3_apb_data = {
+ .gate = HW_SW_GATE_AUTO(0x0484, 16, 0, 1),
+};
+
+/* * Master CCU clocks */
+static struct peri_clk_data sdio1_data = {
+ .gate = HW_SW_GATE(0x0358, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_52m",
+ "ref_52m",
+ "var_96m",
+ "ref_96m"),
+ .sel = SELECTOR(0x0a28, 0, 3),
+ .div = DIVIDER(0x0a28, 4, 14),
+ .trig = TRIGGER(0x0afc, 9),
+};
+
+static struct peri_clk_data sdio2_data = {
+ .gate = HW_SW_GATE(0x035c, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_52m",
+ "ref_52m",
+ "var_96m",
+ "ref_96m"),
+ .sel = SELECTOR(0x0a2c, 0, 3),
+ .div = DIVIDER(0x0a2c, 4, 14),
+ .trig = TRIGGER(0x0afc, 10),
+};
+
+static struct peri_clk_data sdio3_data = {
+ .gate = HW_SW_GATE(0x0364, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_52m",
+ "ref_52m",
+ "var_96m",
+ "ref_96m"),
+ .sel = SELECTOR(0x0a34, 0, 3),
+ .div = DIVIDER(0x0a34, 4, 14),
+ .trig = TRIGGER(0x0afc, 12),
+};
+
+static struct peri_clk_data sdio4_data = {
+ .gate = HW_SW_GATE(0x0360, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_52m",
+ "ref_52m",
+ "var_96m",
+ "ref_96m"),
+ .sel = SELECTOR(0x0a30, 0, 3),
+ .div = DIVIDER(0x0a30, 4, 14),
+ .trig = TRIGGER(0x0afc, 11),
+};
+
+static struct peri_clk_data sdio1_sleep_data = {
+ .clocks = CLOCKS("ref_32k"),
+ .gate = SW_ONLY_GATE(0x0358, 20, 4),
+};
+
+static struct peri_clk_data sdio2_sleep_data = {
+ .clocks = CLOCKS("ref_32k"),
+ .gate = SW_ONLY_GATE(0x035c, 20, 4),
+};
+
+static struct peri_clk_data sdio3_sleep_data = {
+ .clocks = CLOCKS("ref_32k"),
+ .gate = SW_ONLY_GATE(0x0364, 20, 4),
+};
+
+static struct peri_clk_data sdio4_sleep_data = {
+ .clocks = CLOCKS("ref_32k"),
+ .gate = SW_ONLY_GATE(0x0360, 20, 4),
+};
+
+static struct bus_clk_data sdio1_ahb_data = {
+ .gate = HW_SW_GATE_AUTO(0x0358, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio2_ahb_data = {
+ .gate = HW_SW_GATE_AUTO(0x035c, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio3_ahb_data = {
+ .gate = HW_SW_GATE_AUTO(0x0364, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio4_ahb_data = {
+ .gate = HW_SW_GATE_AUTO(0x0360, 16, 0, 1),
+};
+
+/* * Slave CCU clocks */
+static struct peri_clk_data bsc1_data = {
+ .gate = HW_SW_GATE(0x0458, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_104m",
+ "ref_104m",
+ "var_13m",
+ "ref_13m"),
+ .sel = SELECTOR(0x0a64, 0, 3),
+ .trig = TRIGGER(0x0afc, 23),
+};
+
+static struct peri_clk_data bsc2_data = {
+ .gate = HW_SW_GATE(0x045c, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_104m",
+ "ref_104m",
+ "var_13m",
+ "ref_13m"),
+ .sel = SELECTOR(0x0a68, 0, 3),
+ .trig = TRIGGER(0x0afc, 24),
+};
+
+static struct peri_clk_data bsc3_data = {
+ .gate = HW_SW_GATE(0x0484, 18, 2, 3),
+ .clocks = CLOCKS("ref_crystal",
+ "var_104m",
+ "ref_104m",
+ "var_13m",
+ "ref_13m"),
+ .sel = SELECTOR(0x0a84, 0, 3),
+ .trig = TRIGGER(0x0b00, 2),
+};
+
+/*
+ * CCU clocks
+ */
+
+static struct ccu_clock kpm_ccu_clk = {
+ .clk = {
+ .name = "kpm_ccu_clk",
+ .ops = &ccu_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .num_policy_masks = 1,
+ .policy_freq_offset = 0x00000008,
+ .freq_bit_shift = 8,
+ .policy_ctl_offset = 0x0000000c,
+ .policy0_mask_offset = 0x00000010,
+ .policy1_mask_offset = 0x00000014,
+ .policy2_mask_offset = 0x00000018,
+ .policy3_mask_offset = 0x0000001c,
+ .lvm_en_offset = 0x00000034,
+ .freq_id = 2,
+ .freq_tbl = master_axi_freq_tbl,
+};
+
+static struct ccu_clock kps_ccu_clk = {
+ .clk = {
+ .name = "kps_ccu_clk",
+ .ops = &ccu_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .num_policy_masks = 2,
+ .policy_freq_offset = 0x00000008,
+ .freq_bit_shift = 8,
+ .policy_ctl_offset = 0x0000000c,
+ .policy0_mask_offset = 0x00000010,
+ .policy1_mask_offset = 0x00000014,
+ .policy2_mask_offset = 0x00000018,
+ .policy3_mask_offset = 0x0000001c,
+ .policy0_mask2_offset = 0x00000048,
+ .policy1_mask2_offset = 0x0000004c,
+ .policy2_mask2_offset = 0x00000050,
+ .policy3_mask2_offset = 0x00000054,
+ .lvm_en_offset = 0x00000034,
+ .freq_id = 2,
+ .freq_tbl = slave_axi_freq_tbl,
+};
+
+/*
+ * Bus clocks
+ */
+
+/* KPM bus clocks */
+static struct bus_clock sdio1_ahb_clk = {
+ .clk = {
+ .name = "sdio1_ahb_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .freq_tbl = master_ahb_freq_tbl,
+ .data = &sdio1_ahb_data,
+};
+
+static struct bus_clock sdio2_ahb_clk = {
+ .clk = {
+ .name = "sdio2_ahb_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .freq_tbl = master_ahb_freq_tbl,
+ .data = &sdio2_ahb_data,
+};
+
+static struct bus_clock sdio3_ahb_clk = {
+ .clk = {
+ .name = "sdio3_ahb_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .freq_tbl = master_ahb_freq_tbl,
+ .data = &sdio3_ahb_data,
+};
+
+static struct bus_clock sdio4_ahb_clk = {
+ .clk = {
+ .name = "sdio4_ahb_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .freq_tbl = master_ahb_freq_tbl,
+ .data = &sdio4_ahb_data,
+};
+
+static struct bus_clock bsc1_apb_clk = {
+ .clk = {
+ .name = "bsc1_apb_clk",
+ .parent = &kps_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .freq_tbl = slave_apb_freq_tbl,
+ .data = &bsc1_apb_data,
+};
+
+static struct bus_clock bsc2_apb_clk = {
+ .clk = {
+ .name = "bsc2_apb_clk",
+ .parent = &kps_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .freq_tbl = slave_apb_freq_tbl,
+ .data = &bsc2_apb_data,
+};
+
+static struct bus_clock bsc3_apb_clk = {
+ .clk = {
+ .name = "bsc3_apb_clk",
+ .parent = &kps_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .freq_tbl = slave_apb_freq_tbl,
+ .data = &bsc3_apb_data,
+};
+
+/* KPM peripheral */
+static struct peri_clock sdio1_clk = {
+ .clk = {
+ .name = "sdio1_clk",
+ .parent = &ref_52m.clk,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio1_data,
+};
+
+static struct peri_clock sdio2_clk = {
+ .clk = {
+ .name = "sdio2_clk",
+ .parent = &ref_52m.clk,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio2_data,
+};
+
+static struct peri_clock sdio3_clk = {
+ .clk = {
+ .name = "sdio3_clk",
+ .parent = &ref_52m.clk,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio3_data,
+};
+
+static struct peri_clock sdio4_clk = {
+ .clk = {
+ .name = "sdio4_clk",
+ .parent = &ref_52m.clk,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio4_data,
+};
+
+static struct peri_clock sdio1_sleep_clk = {
+ .clk = {
+ .name = "sdio1_sleep_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio1_sleep_data,
+};
+
+static struct peri_clock sdio2_sleep_clk = {
+ .clk = {
+ .name = "sdio2_sleep_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio2_sleep_data,
+};
+
+static struct peri_clock sdio3_sleep_clk = {
+ .clk = {
+ .name = "sdio3_sleep_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio3_sleep_data,
+};
+
+static struct peri_clock sdio4_sleep_clk = {
+ .clk = {
+ .name = "sdio4_sleep_clk",
+ .parent = &kpm_ccu_clk.clk,
+ .ops = &bus_clk_ops,
+ .ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+ },
+ .data = &sdio4_sleep_data,
+};
+
+/* KPS peripheral clock */
+static struct peri_clock bsc1_clk = {
+ .clk = {
+ .name = "bsc1_clk",
+ .parent = &ref_13m.clk,
+ .rate = 13 * CLOCK_1M,
+ .div = 1,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .data = &bsc1_data,
+};
+
+static struct peri_clock bsc2_clk = {
+ .clk = {
+ .name = "bsc2_clk",
+ .parent = &ref_13m.clk,
+ .rate = 13 * CLOCK_1M,
+ .div = 1,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .data = &bsc2_data,
+};
+
+static struct peri_clock bsc3_clk = {
+ .clk = {
+ .name = "bsc3_clk",
+ .parent = &ref_13m.clk,
+ .rate = 13 * CLOCK_1M,
+ .div = 1,
+ .ops = &peri_clk_ops,
+ .ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+ },
+ .data = &bsc3_data,
+};
+
+/* public table for registering clocks */
+struct clk_lookup arch_clk_tbl[] = {
+ /* Peripheral clocks */
+ CLK_LK(sdio1),
+ CLK_LK(sdio2),
+ CLK_LK(sdio3),
+ CLK_LK(sdio4),
+ CLK_LK(sdio1_sleep),
+ CLK_LK(sdio2_sleep),
+ CLK_LK(sdio3_sleep),
+ CLK_LK(sdio4_sleep),
+ CLK_LK(bsc1),
+ CLK_LK(bsc2),
+ CLK_LK(bsc3),
+ /* Bus clocks */
+ CLK_LK(sdio1_ahb),
+ CLK_LK(sdio2_ahb),
+ CLK_LK(sdio3_ahb),
+ CLK_LK(sdio4_ahb),
+ CLK_LK(bsc1_apb),
+ CLK_LK(bsc2_apb),
+ CLK_LK(bsc3_apb),
+};
+
+/* public array size */
+unsigned int arch_clk_tbl_array_size = ARRAY_SIZE(arch_clk_tbl);
generated by cgit (git 2.34.1) at 2024-12-27 11:39:28 +0000