- 根目录:
- drivers
- clk
- bcm
- clk-bcm281xx.c
/*
* Copyright (C) 2013 Broadcom Corporation
* Copyright 2013 Linaro Limited
*
* 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 version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "clk-kona.h"
#include "dt-bindings/clock/bcm281xx.h"
#define BCM281XX_CCU_COMMON(_name, _ucase_name) \
KONA_CCU_COMMON(BCM281XX, _name, _ucase_name)
/* Root CCU */
static struct peri_clk_data frac_1m_data = {
.gate = HW_SW_GATE(0x214, 16, 0, 1),
.trig = TRIGGER(0x0e04, 0),
.div = FRAC_DIVIDER(0x0e00, 0, 22, 16),
.clocks = CLOCKS("ref_crystal"),
};
static struct ccu_data root_ccu_data = {
BCM281XX_CCU_COMMON(root, ROOT),
.kona_clks = {
[BCM281XX_ROOT_CCU_FRAC_1M] =
KONA_CLK(root, frac_1m, peri),
[BCM281XX_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
},
};
/* AON CCU */
static struct peri_clk_data hub_timer_data = {
.gate = HW_SW_GATE(0x0414, 16, 0, 1),
.clocks = CLOCKS("bbl_32k",
"frac_1m",
"dft_19_5m"),
.sel = SELECTOR(0x0a10, 0, 2),
.trig = TRIGGER(0x0a40, 4),
};
static struct peri_clk_data pmu_bsc_data = {
.gate = HW_SW_GATE(0x0418, 16, 0, 1),
.clocks = CLOCKS("ref_crystal",
"pmu_bsc_var",
"bbl_32k"),
.sel = SELECTOR(0x0a04, 0, 2),
.div = DIVIDER(0x0a04, 3, 4),
.trig = TRIGGER(0x0a40, 0),
};
static struct peri_clk_data pmu_bsc_var_data = {
.clocks = CLOCKS("var_312m",
"ref_312m"),
.sel = SELECTOR(0x0a00, 0, 2),
.div = DIVIDER(0x0a00, 4, 5),
.trig = TRIGGER(0x0a40, 2),
};
static struct ccu_data aon_ccu_data = {
BCM281XX_CCU_COMMON(aon, AON),
.kona_clks = {
[BCM281XX_AON_CCU_HUB_TIMER] =
KONA_CLK(aon, hub_timer, peri),
[BCM281XX_AON_CCU_PMU_BSC] =
KONA_CLK(aon, pmu_bsc, peri),
[BCM281XX_AON_CCU_PMU_BSC_VAR] =
KONA_CLK(aon, pmu_bsc_var, peri),
[BCM281XX_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
},
};
/* Hub CCU */
static struct peri_clk_data tmon_1m_data = {
.gate = HW_SW_GATE(0x04a4, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"frac_1m"),
.sel = SELECTOR(0x0e74, 0, 2),
.trig = TRIGGER(0x0e84, 1),
};
static struct ccu_data hub_ccu_data = {
BCM281XX_CCU_COMMON(hub, HUB),
.kona_clks = {
[BCM281XX_HUB_CCU_TMON_1M] =
KONA_CLK(hub, tmon_1m, peri),
[BCM281XX_HUB_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
},
};
/* Master CCU */
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 usb_ic_data = {
.gate = HW_SW_GATE(0x0354, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_96m",
"ref_96m"),
.div = FIXED_DIVIDER(2),
.sel = SELECTOR(0x0a24, 0, 2),
.trig = TRIGGER(0x0afc, 7),
};
/* also called usbh_48m */
static struct peri_clk_data hsic2_48m_data = {
.gate = HW_SW_GATE(0x0370, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_96m",
"ref_96m"),
.sel = SELECTOR(0x0a38, 0, 2),
.div = FIXED_DIVIDER(2),
.trig = TRIGGER(0x0afc, 5),
};
/* also called usbh_12m */
static struct peri_clk_data hsic2_12m_data = {
.gate = HW_SW_GATE(0x0370, 20, 4, 5),
.div = DIVIDER(0x0a38, 12, 2),
.clocks = CLOCKS("ref_crystal",
"var_96m",
"ref_96m"),
.pre_div = FIXED_DIVIDER(2),
.sel = SELECTOR(0x0a38, 0, 2),
.trig = TRIGGER(0x0afc, 5),
};
static struct ccu_data master_ccu_data = {
BCM281XX_CCU_COMMON(master, MASTER),
.kona_clks = {
[BCM281XX_MASTER_CCU_SDIO1] =
KONA_CLK(master, sdio1, peri),
[BCM281XX_MASTER_CCU_SDIO2] =
KONA_CLK(master, sdio2, peri),
[BCM281XX_MASTER_CCU_SDIO3] =
KONA_CLK(master, sdio3, peri),
[BCM281XX_MASTER_CCU_SDIO4] =
KONA_CLK(master, sdio4, peri),
[BCM281XX_MASTER_CCU_USB_IC] =
KONA_CLK(master, usb_ic, peri),
[BCM281XX_MASTER_CCU_HSIC2_48M] =
KONA_CLK(master, hsic2_48m, peri),
[BCM281XX_MASTER_CCU_HSIC2_12M] =
KONA_CLK(master, hsic2_12m, peri),
[BCM281XX_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
},
};
/* Slave CCU */
static struct peri_clk_data uartb_data = {
.gate = HW_SW_GATE(0x0400, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_156m",
"ref_156m"),
.sel = SELECTOR(0x0a10, 0, 2),
.div = FRAC_DIVIDER(0x0a10, 4, 12, 8),
.trig = TRIGGER(0x0afc, 2),
};
static struct peri_clk_data uartb2_data = {
.gate = HW_SW_GATE(0x0404, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_156m",
"ref_156m"),
.sel = SELECTOR(0x0a14, 0, 2),
.div = FRAC_DIVIDER(0x0a14, 4, 12, 8),
.trig = TRIGGER(0x0afc, 3),
};
static struct peri_clk_data uartb3_data = {
.gate = HW_SW_GATE(0x0408, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_156m",
"ref_156m"),
.sel = SELECTOR(0x0a18, 0, 2),
.div = FRAC_DIVIDER(0x0a18, 4, 12, 8),
.trig = TRIGGER(0x0afc, 4),
};
static struct peri_clk_data uartb4_data = {
.gate = HW_SW_GATE(0x0408, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_156m",
"ref_156m"),
.sel = SELECTOR(0x0a1c, 0, 2),
.div = FRAC_DIVIDER(0x0a1c, 4, 12, 8),
.trig = TRIGGER(0x0afc, 5),
};
static struct peri_clk_data ssp0_data = {
.gate = HW_SW_GATE(0x0410, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_104m",
"ref_104m",
"var_96m",
"ref_96m"),
.sel = SELECTOR(0x0a20, 0, 3),
.div = DIVIDER(0x0a20, 4, 14),
.trig = TRIGGER(0x0afc, 6),
};
static struct peri_clk_data ssp2_data = {
.gate = HW_SW_GATE(0x0418, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_104m",
"ref_104m",
"var_96m",
"ref_96m"),
.sel = SELECTOR(0x0a28, 0, 3),
.div = DIVIDER(0x0a28, 4, 14),
.trig = TRIGGER(0x0afc, 8),
};
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),
};
static struct peri_clk_data pwm_data = {
.gate = HW_SW_GATE(0x0468, 18, 2, 3),
.clocks = CLOCKS("ref_crystal",
"var_104m"),
.sel = SELECTOR(0x0a70, 0, 2),
.div = DIVIDER(0x0a70, 4, 3),
.trig = TRIGGER(0x0afc, 15),
};
static struct ccu_data slave_ccu_data = {
BCM281XX_CCU_COMMON(slave, SLAVE),
.kona_clks = {
[BCM281XX_SLAVE_CCU_UARTB] =
KONA_CLK(slave, uartb, peri),
[BCM281XX_SLAVE_CCU_UARTB2] =
KONA_CLK(slave, uartb2, peri),
[BCM281XX_SLAVE_CCU_UARTB3] =
KONA_CLK(slave, uartb3, peri),
[BCM281XX_SLAVE_CCU_UARTB4] =
KONA_CLK(slave, uartb4, peri),
[BCM281XX_SLAVE_CCU_SSP0] =
KONA_CLK(slave, ssp0, peri),
[BCM281XX_SLAVE_CCU_SSP2] =
KONA_CLK(slave, ssp2, peri),
[BCM281XX_SLAVE_CCU_BSC1] =
KONA_CLK(slave, bsc1, peri),
[BCM281XX_SLAVE_CCU_BSC2] =
KONA_CLK(slave, bsc2, peri),
[BCM281XX_SLAVE_CCU_BSC3] =
KONA_CLK(slave, bsc3, peri),
[BCM281XX_SLAVE_CCU_PWM] =
KONA_CLK(slave, pwm, peri),
[BCM281XX_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
},
};
/* Device tree match table callback functions */
static void __init kona_dt_root_ccu_setup(struct device_node *node)
{
kona_dt_ccu_setup(&root_ccu_data, node);
}
static void __init kona_dt_aon_ccu_setup(struct device_node *node)
{
kona_dt_ccu_setup(&aon_ccu_data, node);
}
static void __init kona_dt_hub_ccu_setup(struct device_node *node)
{
kona_dt_ccu_setup(&hub_ccu_data, node);
}
static void __init kona_dt_master_ccu_setup(struct device_node *node)
{
kona_dt_ccu_setup(&master_ccu_data, node);
}
static void __init kona_dt_slave_ccu_setup(struct device_node *node)
{
kona_dt_ccu_setup(&slave_ccu_data, node);
}
CLK_OF_DECLARE(bcm281xx_root_ccu, BCM281XX_DT_ROOT_CCU_COMPAT,
kona_dt_root_ccu_setup);
CLK_OF_DECLARE(bcm281xx_aon_ccu, BCM281XX_DT_AON_CCU_COMPAT,
kona_dt_aon_ccu_setup);
CLK_OF_DECLARE(bcm281xx_hub_ccu, BCM281XX_DT_HUB_CCU_COMPAT,
kona_dt_hub_ccu_setup);
CLK_OF_DECLARE(bcm281xx_master_ccu, BCM281XX_DT_MASTER_CCU_COMPAT,
kona_dt_master_ccu_setup);
CLK_OF_DECLARE(bcm281xx_slave_ccu, BCM281XX_DT_SLAVE_CCU_COMPAT,
kona_dt_slave_ccu_setup);