diff options
Diffstat (limited to 'drivers/clk/mmp/clk-mmp2.c')
| -rw-r--r-- | drivers/clk/mmp/clk-mmp2.c | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/drivers/clk/mmp/clk-mmp2.c b/drivers/clk/mmp/clk-mmp2.c new file mode 100644 index 000000000..746003171 --- /dev/null +++ b/drivers/clk/mmp/clk-mmp2.c @@ -0,0 +1,457 @@ +/* + * mmp2 clock framework source file + * + * Copyright (C) 2012 Marvell + * Chao Xie <xiechao.mail@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/clk/mmp.h> + +#include "clk.h" + +#define APBC_RTC 0x0 +#define APBC_TWSI0 0x4 +#define APBC_TWSI1 0x8 +#define APBC_TWSI2 0xc +#define APBC_TWSI3 0x10 +#define APBC_TWSI4 0x7c +#define APBC_TWSI5 0x80 +#define APBC_KPC 0x18 +#define APBC_UART0 0x2c +#define APBC_UART1 0x30 +#define APBC_UART2 0x34 +#define APBC_UART3 0x88 +#define APBC_GPIO 0x38 +#define APBC_PWM0 0x3c +#define APBC_PWM1 0x40 +#define APBC_PWM2 0x44 +#define APBC_PWM3 0x48 +#define APBC_SSP0 0x50 +#define APBC_SSP1 0x54 +#define APBC_SSP2 0x58 +#define APBC_SSP3 0x5c +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_SDH2 0xe8 +#define APMU_SDH3 0xec +#define APMU_USB 0x5c +#define APMU_DISP0 0x4c +#define APMU_DISP1 0x110 +#define APMU_CCIC0 0x50 +#define APMU_CCIC1 0xf4 +#define MPMU_UART_PLL 0x14 + +static DEFINE_SPINLOCK(clk_lock); + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 8125, .den = 1536}, /*14.745MHZ */ + {.num = 3521, .den = 689}, /*19.23MHZ */ +}; + +static const char *uart_parent[] = {"uart_pll", "vctcxo"}; +static const char *ssp_parent[] = {"vctcxo_4", "vctcxo_2", "vctcxo", "pll1_16"}; +static const char *sdh_parent[] = {"pll1_4", "pll2", "usb_pll", "pll1"}; +static const char *disp_parent[] = {"pll1", "pll1_16", "pll2", "vctcxo"}; +static const char *ccic_parent[] = {"pll1_2", "pll1_16", "vctcxo"}; + +void __init mmp2_clk_init(phys_addr_t mpmu_phys, phys_addr_t apmu_phys, + phys_addr_t apbc_phys) +{ + struct clk *clk; + struct clk *vctcxo; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; + + mpmu_base = ioremap(mpmu_phys, SZ_4K); + if (!mpmu_base) { + pr_err("error to ioremap MPMU base\n"); + return; + } + + apmu_base = ioremap(apmu_phys, SZ_4K); + if (!apmu_base) { + pr_err("error to ioremap APMU base\n"); + return; + } + + apbc_base = ioremap(apbc_phys, SZ_4K); + if (!apbc_base) { + pr_err("error to ioremap APBC base\n"); + return; + } + + clk = clk_register_fixed_rate(NULL, "clk32", NULL, 0, 3200); + clk_register_clkdev(clk, "clk32", NULL); + + vctcxo = clk_register_fixed_rate(NULL, "vctcxo", NULL, 0, 26000000); + clk_register_clkdev(vctcxo, "vctcxo", NULL); + + clk = clk_register_fixed_rate(NULL, "pll1", NULL, 0, 800000000); + clk_register_clkdev(clk, "pll1", NULL); + + clk = clk_register_fixed_rate(NULL, "usb_pll", NULL, 0, 480000000); + clk_register_clkdev(clk, "usb_pll", NULL); + + clk = clk_register_fixed_rate(NULL, "pll2", NULL, 0, 960000000); + clk_register_clkdev(clk, "pll2", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_2", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_4", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_8", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_16", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_20", "pll1_4", + CLK_SET_RATE_PARENT, 1, 5); + clk_register_clkdev(clk, "pll1_20", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_3", "pll1", + CLK_SET_RATE_PARENT, 1, 3); + clk_register_clkdev(clk, "pll1_3", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_3", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_6", NULL); + + clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll1_12", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_2", "pll2", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_2", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_4", "pll2_2", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_4", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_8", "pll2_4", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_8", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_16", "pll2_8", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_16", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_3", "pll2", + CLK_SET_RATE_PARENT, 1, 3); + clk_register_clkdev(clk, "pll2_3", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_6", "pll2_3", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_6", NULL); + + clk = clk_register_fixed_factor(NULL, "pll2_12", "pll2_6", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "pll2_12", NULL); + + clk = clk_register_fixed_factor(NULL, "vctcxo_2", "vctcxo", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "vctcxo_2", NULL); + + clk = clk_register_fixed_factor(NULL, "vctcxo_4", "vctcxo_2", + CLK_SET_RATE_PARENT, 1, 2); + clk_register_clkdev(clk, "vctcxo_4", NULL); + + clk = mmp_clk_register_factor("uart_pll", "pll1_4", 0, + mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), &clk_lock); + clk_set_rate(clk, 14745600); + clk_register_clkdev(clk, "uart_pll", NULL); + + clk = mmp_clk_register_apbc("twsi0", "vctcxo", + apbc_base + APBC_TWSI0, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0"); + + clk = mmp_clk_register_apbc("twsi1", "vctcxo", + apbc_base + APBC_TWSI1, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1"); + + clk = mmp_clk_register_apbc("twsi2", "vctcxo", + apbc_base + APBC_TWSI2, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.2"); + + clk = mmp_clk_register_apbc("twsi3", "vctcxo", + apbc_base + APBC_TWSI3, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.3"); + + clk = mmp_clk_register_apbc("twsi4", "vctcxo", + apbc_base + APBC_TWSI4, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.4"); + + clk = mmp_clk_register_apbc("twsi5", "vctcxo", + apbc_base + APBC_TWSI5, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-i2c.5"); + + clk = mmp_clk_register_apbc("gpio", "vctcxo", + apbc_base + APBC_GPIO, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp2-gpio"); + + clk = mmp_clk_register_apbc("kpc", "clk32", + apbc_base + APBC_KPC, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa27x-keypad"); + + clk = mmp_clk_register_apbc("rtc", "clk32", + apbc_base + APBC_RTC, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-rtc"); + + clk = mmp_clk_register_apbc("pwm0", "vctcxo", + apbc_base + APBC_PWM0, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp2-pwm.0"); + + clk = mmp_clk_register_apbc("pwm1", "vctcxo", + apbc_base + APBC_PWM1, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp2-pwm.1"); + + clk = mmp_clk_register_apbc("pwm2", "vctcxo", + apbc_base + APBC_PWM2, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp2-pwm.2"); + + clk = mmp_clk_register_apbc("pwm3", "vctcxo", + apbc_base + APBC_PWM3, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp2-pwm.3"); + + clk = clk_register_mux(NULL, "uart0_mux", uart_parent, + ARRAY_SIZE(uart_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_UART0, 4, 3, 0, &clk_lock); + clk_set_parent(clk, vctcxo); + clk_register_clkdev(clk, "uart_mux.0", NULL); + + clk = mmp_clk_register_apbc("uart0", "uart0_mux", + apbc_base + APBC_UART0, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-uart.0"); + + clk = clk_register_mux(NULL, "uart1_mux", uart_parent, + ARRAY_SIZE(uart_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_UART1, 4, 3, 0, &clk_lock); + clk_set_parent(clk, vctcxo); + clk_register_clkdev(clk, "uart_mux.1", NULL); + + clk = mmp_clk_register_apbc("uart1", "uart1_mux", + apbc_base + APBC_UART1, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-uart.1"); + + clk = clk_register_mux(NULL, "uart2_mux", uart_parent, + ARRAY_SIZE(uart_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_UART2, 4, 3, 0, &clk_lock); + clk_set_parent(clk, vctcxo); + clk_register_clkdev(clk, "uart_mux.2", NULL); + + clk = mmp_clk_register_apbc("uart2", "uart2_mux", + apbc_base + APBC_UART2, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-uart.2"); + + clk = clk_register_mux(NULL, "uart3_mux", uart_parent, + ARRAY_SIZE(uart_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_UART3, 4, 3, 0, &clk_lock); + clk_set_parent(clk, vctcxo); + clk_register_clkdev(clk, "uart_mux.3", NULL); + + clk = mmp_clk_register_apbc("uart3", "uart3_mux", + apbc_base + APBC_UART3, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "pxa2xx-uart.3"); + + clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent, + ARRAY_SIZE(ssp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock); + clk_register_clkdev(clk, "uart_mux.0", NULL); + + clk = mmp_clk_register_apbc("ssp0", "ssp0_mux", + apbc_base + APBC_SSP0, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-ssp.0"); + + clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent, + ARRAY_SIZE(ssp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock); + clk_register_clkdev(clk, "ssp_mux.1", NULL); + + clk = mmp_clk_register_apbc("ssp1", "ssp1_mux", + apbc_base + APBC_SSP1, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-ssp.1"); + + clk = clk_register_mux(NULL, "ssp2_mux", ssp_parent, + ARRAY_SIZE(ssp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_SSP2, 4, 3, 0, &clk_lock); + clk_register_clkdev(clk, "ssp_mux.2", NULL); + + clk = mmp_clk_register_apbc("ssp2", "ssp2_mux", + apbc_base + APBC_SSP2, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-ssp.2"); + + clk = clk_register_mux(NULL, "ssp3_mux", ssp_parent, + ARRAY_SIZE(ssp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apbc_base + APBC_SSP3, 4, 3, 0, &clk_lock); + clk_register_clkdev(clk, "ssp_mux.3", NULL); + + clk = mmp_clk_register_apbc("ssp3", "ssp3_mux", + apbc_base + APBC_SSP3, 10, 0, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-ssp.3"); + + clk = clk_register_mux(NULL, "sdh_mux", sdh_parent, + ARRAY_SIZE(sdh_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apmu_base + APMU_SDH0, 8, 2, 0, &clk_lock); + clk_register_clkdev(clk, "sdh_mux", NULL); + + clk = clk_register_divider(NULL, "sdh_div", "sdh_mux", + CLK_SET_RATE_PARENT, apmu_base + APMU_SDH0, + 10, 4, CLK_DIVIDER_ONE_BASED, &clk_lock); + clk_register_clkdev(clk, "sdh_div", NULL); + + clk = mmp_clk_register_apmu("sdh0", "sdh_div", apmu_base + APMU_SDH0, + 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "sdhci-pxav3.0"); + + clk = mmp_clk_register_apmu("sdh1", "sdh_div", apmu_base + APMU_SDH1, + 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "sdhci-pxav3.1"); + + clk = mmp_clk_register_apmu("sdh2", "sdh_div", apmu_base + APMU_SDH2, + 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "sdhci-pxav3.2"); + + clk = mmp_clk_register_apmu("sdh3", "sdh_div", apmu_base + APMU_SDH3, + 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "sdhci-pxav3.3"); + + clk = mmp_clk_register_apmu("usb", "usb_pll", apmu_base + APMU_USB, + 0x9, &clk_lock); + clk_register_clkdev(clk, "usb_clk", NULL); + + clk = clk_register_mux(NULL, "disp0_mux", disp_parent, + ARRAY_SIZE(disp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apmu_base + APMU_DISP0, 6, 2, 0, &clk_lock); + clk_register_clkdev(clk, "disp_mux.0", NULL); + + clk = clk_register_divider(NULL, "disp0_div", "disp0_mux", + CLK_SET_RATE_PARENT, apmu_base + APMU_DISP0, + 8, 4, CLK_DIVIDER_ONE_BASED, &clk_lock); + clk_register_clkdev(clk, "disp_div.0", NULL); + + clk = mmp_clk_register_apmu("disp0", "disp0_div", + apmu_base + APMU_DISP0, 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-disp.0"); + + clk = clk_register_divider(NULL, "disp0_sphy_div", "disp0_mux", 0, + apmu_base + APMU_DISP0, 15, 5, 0, &clk_lock); + clk_register_clkdev(clk, "disp_sphy_div.0", NULL); + + clk = mmp_clk_register_apmu("disp0_sphy", "disp0_sphy_div", + apmu_base + APMU_DISP0, 0x1024, &clk_lock); + clk_register_clkdev(clk, "disp_sphy.0", NULL); + + clk = clk_register_mux(NULL, "disp1_mux", disp_parent, + ARRAY_SIZE(disp_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apmu_base + APMU_DISP1, 6, 2, 0, &clk_lock); + clk_register_clkdev(clk, "disp_mux.1", NULL); + + clk = clk_register_divider(NULL, "disp1_div", "disp1_mux", + CLK_SET_RATE_PARENT, apmu_base + APMU_DISP1, + 8, 4, CLK_DIVIDER_ONE_BASED, &clk_lock); + clk_register_clkdev(clk, "disp_div.1", NULL); + + clk = mmp_clk_register_apmu("disp1", "disp1_div", + apmu_base + APMU_DISP1, 0x1b, &clk_lock); + clk_register_clkdev(clk, NULL, "mmp-disp.1"); + + clk = mmp_clk_register_apmu("ccic_arbiter", "vctcxo", + apmu_base + APMU_CCIC0, 0x1800, &clk_lock); + clk_register_clkdev(clk, "ccic_arbiter", NULL); + + clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent, + ARRAY_SIZE(ccic_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apmu_base + APMU_CCIC0, 6, 2, 0, &clk_lock); + clk_register_clkdev(clk, "ccic_mux.0", NULL); + + clk = clk_register_divider(NULL, "ccic0_div", "ccic0_mux", + CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0, + 17, 4, CLK_DIVIDER_ONE_BASED, &clk_lock); + clk_register_clkdev(clk, "ccic_div.0", NULL); + + clk = mmp_clk_register_apmu("ccic0", "ccic0_div", + apmu_base + APMU_CCIC0, 0x1b, &clk_lock); + clk_register_clkdev(clk, "fnclk", "mmp-ccic.0"); + + clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_div", + apmu_base + APMU_CCIC0, 0x24, &clk_lock); + clk_register_clkdev(clk, "phyclk", "mmp-ccic.0"); + + clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_div", + CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0, + 10, 5, 0, &clk_lock); + clk_register_clkdev(clk, "sphyclk_div", "mmp-ccic.0"); + + clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div", + apmu_base + APMU_CCIC0, 0x300, &clk_lock); + clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0"); + + clk = clk_register_mux(NULL, "ccic1_mux", ccic_parent, + ARRAY_SIZE(ccic_parent), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, + apmu_base + APMU_CCIC1, 6, 2, 0, &clk_lock); + clk_register_clkdev(clk, "ccic_mux.1", NULL); + + clk = clk_register_divider(NULL, "ccic1_div", "ccic1_mux", + CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC1, + 16, 4, CLK_DIVIDER_ONE_BASED, &clk_lock); + clk_register_clkdev(clk, "ccic_div.1", NULL); + + clk = mmp_clk_register_apmu("ccic1", "ccic1_div", + apmu_base + APMU_CCIC1, 0x1b, &clk_lock); + clk_register_clkdev(clk, "fnclk", "mmp-ccic.1"); + + clk = mmp_clk_register_apmu("ccic1_phy", "ccic1_div", + apmu_base + APMU_CCIC1, 0x24, &clk_lock); + clk_register_clkdev(clk, "phyclk", "mmp-ccic.1"); + + clk = clk_register_divider(NULL, "ccic1_sphy_div", "ccic1_div", + CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC1, + 10, 5, 0, &clk_lock); + clk_register_clkdev(clk, "sphyclk_div", "mmp-ccic.1"); + + clk = mmp_clk_register_apmu("ccic1_sphy", "ccic1_sphy_div", + apmu_base + APMU_CCIC1, 0x300, &clk_lock); + clk_register_clkdev(clk, "sphyclk", "mmp-ccic.1"); +} |