| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Oleksij Rempel | 1916 | 96.77% | 1 | 16.67% |
| Stephen Boyd | 54 | 2.73% | 1 | 16.67% |
| Kees Cook | 4 | 0.20% | 1 | 16.67% |
| Maxime Ripard | 3 | 0.15% | 1 | 16.67% |
| Rob Herring | 3 | 0.15% | 2 | 33.33% |
| Total | 1980 | 6 |
/* * Copyright (c) 2014 Oleksij Rempel <linux@rempel-privat.de>. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> #include <linux/io.h> #include <linux/clk-provider.h> #include <linux/spinlock.h> #include <linux/of.h> #include <linux/of_address.h> #include <dt-bindings/clock/alphascale,asm9260.h> #define HW_AHBCLKCTRL0 0x0020 #define HW_AHBCLKCTRL1 0x0030 #define HW_SYSPLLCTRL 0x0100 #define HW_MAINCLKSEL 0x0120 #define HW_MAINCLKUEN 0x0124 #define HW_UARTCLKSEL 0x0128 #define HW_UARTCLKUEN 0x012c #define HW_I2S0CLKSEL 0x0130 #define HW_I2S0CLKUEN 0x0134 #define HW_I2S1CLKSEL 0x0138 #define HW_I2S1CLKUEN 0x013c #define HW_WDTCLKSEL 0x0160 #define HW_WDTCLKUEN 0x0164 #define HW_CLKOUTCLKSEL 0x0170 #define HW_CLKOUTCLKUEN 0x0174 #define HW_CPUCLKDIV 0x017c #define HW_SYSAHBCLKDIV 0x0180 #define HW_I2S0MCLKDIV 0x0190 #define HW_I2S0SCLKDIV 0x0194 #define HW_I2S1MCLKDIV 0x0188 #define HW_I2S1SCLKDIV 0x018c #define HW_UART0CLKDIV 0x0198 #define HW_UART1CLKDIV 0x019c #define HW_UART2CLKDIV 0x01a0 #define HW_UART3CLKDIV 0x01a4 #define HW_UART4CLKDIV 0x01a8 #define HW_UART5CLKDIV 0x01ac #define HW_UART6CLKDIV 0x01b0 #define HW_UART7CLKDIV 0x01b4 #define HW_UART8CLKDIV 0x01b8 #define HW_UART9CLKDIV 0x01bc #define HW_SPI0CLKDIV 0x01c0 #define HW_SPI1CLKDIV 0x01c4 #define HW_QUADSPICLKDIV 0x01c8 #define HW_SSP0CLKDIV 0x01d0 #define HW_NANDCLKDIV 0x01d4 #define HW_TRACECLKDIV 0x01e0 #define HW_CAMMCLKDIV 0x01e8 #define HW_WDTCLKDIV 0x01ec #define HW_CLKOUTCLKDIV 0x01f4 #define HW_MACCLKDIV 0x01f8 #define HW_LCDCLKDIV 0x01fc #define HW_ADCANACLKDIV 0x0200 static struct clk_hw_onecell_data *clk_data; static DEFINE_SPINLOCK(asm9260_clk_lock); struct asm9260_div_clk { unsigned int idx; const char *name; const char *parent_name; u32 reg; }; struct asm9260_gate_data { unsigned int idx; const char *name; const char *parent_name; u32 reg; u8 bit_idx; unsigned long flags; }; struct asm9260_mux_clock { u8 mask; u32 *table; const char *name; const char **parent_names; u8 num_parents; unsigned long offset; unsigned long flags; }; static void __iomem *base; static const struct asm9260_div_clk asm9260_div_clks[] __initconst = { { CLKID_SYS_CPU, "cpu_div", "main_gate", HW_CPUCLKDIV }, { CLKID_SYS_AHB, "ahb_div", "cpu_div", HW_SYSAHBCLKDIV }, /* i2s has two deviders: one for only external mclk and internal * devider for all clks. */ { CLKID_SYS_I2S0M, "i2s0m_div", "i2s0_mclk", HW_I2S0MCLKDIV }, { CLKID_SYS_I2S1M, "i2s1m_div", "i2s1_mclk", HW_I2S1MCLKDIV }, { CLKID_SYS_I2S0S, "i2s0s_div", "i2s0_gate", HW_I2S0SCLKDIV }, { CLKID_SYS_I2S1S, "i2s1s_div", "i2s0_gate", HW_I2S1SCLKDIV }, { CLKID_SYS_UART0, "uart0_div", "uart_gate", HW_UART0CLKDIV }, { CLKID_SYS_UART1, "uart1_div", "uart_gate", HW_UART1CLKDIV }, { CLKID_SYS_UART2, "uart2_div", "uart_gate", HW_UART2CLKDIV }, { CLKID_SYS_UART3, "uart3_div", "uart_gate", HW_UART3CLKDIV }, { CLKID_SYS_UART4, "uart4_div", "uart_gate", HW_UART4CLKDIV }, { CLKID_SYS_UART5, "uart5_div", "uart_gate", HW_UART5CLKDIV }, { CLKID_SYS_UART6, "uart6_div", "uart_gate", HW_UART6CLKDIV }, { CLKID_SYS_UART7, "uart7_div", "uart_gate", HW_UART7CLKDIV }, { CLKID_SYS_UART8, "uart8_div", "uart_gate", HW_UART8CLKDIV }, { CLKID_SYS_UART9, "uart9_div", "uart_gate", HW_UART9CLKDIV }, { CLKID_SYS_SPI0, "spi0_div", "main_gate", HW_SPI0CLKDIV }, { CLKID_SYS_SPI1, "spi1_div", "main_gate", HW_SPI1CLKDIV }, { CLKID_SYS_QUADSPI, "quadspi_div", "main_gate", HW_QUADSPICLKDIV }, { CLKID_SYS_SSP0, "ssp0_div", "main_gate", HW_SSP0CLKDIV }, { CLKID_SYS_NAND, "nand_div", "main_gate", HW_NANDCLKDIV }, { CLKID_SYS_TRACE, "trace_div", "main_gate", HW_TRACECLKDIV }, { CLKID_SYS_CAMM, "camm_div", "main_gate", HW_CAMMCLKDIV }, { CLKID_SYS_MAC, "mac_div", "main_gate", HW_MACCLKDIV }, { CLKID_SYS_LCD, "lcd_div", "main_gate", HW_LCDCLKDIV }, { CLKID_SYS_ADCANA, "adcana_div", "main_gate", HW_ADCANACLKDIV }, { CLKID_SYS_WDT, "wdt_div", "wdt_gate", HW_WDTCLKDIV }, { CLKID_SYS_CLKOUT, "clkout_div", "clkout_gate", HW_CLKOUTCLKDIV }, }; static const struct asm9260_gate_data asm9260_mux_gates[] __initconst = { { 0, "main_gate", "main_mux", HW_MAINCLKUEN, 0 }, { 0, "uart_gate", "uart_mux", HW_UARTCLKUEN, 0 }, { 0, "i2s0_gate", "i2s0_mux", HW_I2S0CLKUEN, 0 }, { 0, "i2s1_gate", "i2s1_mux", HW_I2S1CLKUEN, 0 }, { 0, "wdt_gate", "wdt_mux", HW_WDTCLKUEN, 0 }, { 0, "clkout_gate", "clkout_mux", HW_CLKOUTCLKUEN, 0 }, }; static const struct asm9260_gate_data asm9260_ahb_gates[] __initconst = { /* ahb gates */ { CLKID_AHB_ROM, "rom", "ahb_div", HW_AHBCLKCTRL0, 1, CLK_IGNORE_UNUSED}, { CLKID_AHB_RAM, "ram", "ahb_div", HW_AHBCLKCTRL0, 2, CLK_IGNORE_UNUSED}, { CLKID_AHB_GPIO, "gpio", "ahb_div", HW_AHBCLKCTRL0, 4 }, { CLKID_AHB_MAC, "mac", "ahb_div", HW_AHBCLKCTRL0, 5 }, { CLKID_AHB_EMI, "emi", "ahb_div", HW_AHBCLKCTRL0, 6, CLK_IGNORE_UNUSED}, { CLKID_AHB_USB0, "usb0", "ahb_div", HW_AHBCLKCTRL0, 7 }, { CLKID_AHB_USB1, "usb1", "ahb_div", HW_AHBCLKCTRL0, 8 }, { CLKID_AHB_DMA0, "dma0", "ahb_div", HW_AHBCLKCTRL0, 9 }, { CLKID_AHB_DMA1, "dma1", "ahb_div", HW_AHBCLKCTRL0, 10 }, { CLKID_AHB_UART0, "uart0", "ahb_div", HW_AHBCLKCTRL0, 11 }, { CLKID_AHB_UART1, "uart1", "ahb_div", HW_AHBCLKCTRL0, 12 }, { CLKID_AHB_UART2, "uart2", "ahb_div", HW_AHBCLKCTRL0, 13 }, { CLKID_AHB_UART3, "uart3", "ahb_div", HW_AHBCLKCTRL0, 14 }, { CLKID_AHB_UART4, "uart4", "ahb_div", HW_AHBCLKCTRL0, 15 }, { CLKID_AHB_UART5, "uart5", "ahb_div", HW_AHBCLKCTRL0, 16 }, { CLKID_AHB_UART6, "uart6", "ahb_div", HW_AHBCLKCTRL0, 17 }, { CLKID_AHB_UART7, "uart7", "ahb_div", HW_AHBCLKCTRL0, 18 }, { CLKID_AHB_UART8, "uart8", "ahb_div", HW_AHBCLKCTRL0, 19 }, { CLKID_AHB_UART9, "uart9", "ahb_div", HW_AHBCLKCTRL0, 20 }, { CLKID_AHB_I2S0, "i2s0", "ahb_div", HW_AHBCLKCTRL0, 21 }, { CLKID_AHB_I2C0, "i2c0", "ahb_div", HW_AHBCLKCTRL0, 22 }, { CLKID_AHB_I2C1, "i2c1", "ahb_div", HW_AHBCLKCTRL0, 23 }, { CLKID_AHB_SSP0, "ssp0", "ahb_div", HW_AHBCLKCTRL0, 24 }, { CLKID_AHB_IOCONFIG, "ioconf", "ahb_div", HW_AHBCLKCTRL0, 25 }, { CLKID_AHB_WDT, "wdt", "ahb_div", HW_AHBCLKCTRL0, 26 }, { CLKID_AHB_CAN0, "can0", "ahb_div", HW_AHBCLKCTRL0, 27 }, { CLKID_AHB_CAN1, "can1", "ahb_div", HW_AHBCLKCTRL0, 28 }, { CLKID_AHB_MPWM, "mpwm", "ahb_div", HW_AHBCLKCTRL0, 29 }, { CLKID_AHB_SPI0, "spi0", "ahb_div", HW_AHBCLKCTRL0, 30 }, { CLKID_AHB_SPI1, "spi1", "ahb_div", HW_AHBCLKCTRL0, 31 }, { CLKID_AHB_QEI, "qei", "ahb_div", HW_AHBCLKCTRL1, 0 }, { CLKID_AHB_QUADSPI0, "quadspi0", "ahb_div", HW_AHBCLKCTRL1, 1 }, { CLKID_AHB_CAMIF, "capmif", "ahb_div", HW_AHBCLKCTRL1, 2 }, { CLKID_AHB_LCDIF, "lcdif", "ahb_div", HW_AHBCLKCTRL1, 3 }, { CLKID_AHB_TIMER0, "timer0", "ahb_div", HW_AHBCLKCTRL1, 4 }, { CLKID_AHB_TIMER1, "timer1", "ahb_div", HW_AHBCLKCTRL1, 5 }, { CLKID_AHB_TIMER2, "timer2", "ahb_div", HW_AHBCLKCTRL1, 6 }, { CLKID_AHB_TIMER3, "timer3", "ahb_div", HW_AHBCLKCTRL1, 7 }, { CLKID_AHB_IRQ, "irq", "ahb_div", HW_AHBCLKCTRL1, 8, CLK_IGNORE_UNUSED}, { CLKID_AHB_RTC, "rtc", "ahb_div", HW_AHBCLKCTRL1, 9 }, { CLKID_AHB_NAND, "nand", "ahb_div", HW_AHBCLKCTRL1, 10 }, { CLKID_AHB_ADC0, "adc0", "ahb_div", HW_AHBCLKCTRL1, 11 }, { CLKID_AHB_LED, "led", "ahb_div", HW_AHBCLKCTRL1, 12 }, { CLKID_AHB_DAC0, "dac0", "ahb_div", HW_AHBCLKCTRL1, 13 }, { CLKID_AHB_LCD, "lcd", "ahb_div", HW_AHBCLKCTRL1, 14 }, { CLKID_AHB_I2S1, "i2s1", "ahb_div", HW_AHBCLKCTRL1, 15 }, { CLKID_AHB_MAC1, "mac1", "ahb_div", HW_AHBCLKCTRL1, 16 }, }; static const char __initdata *main_mux_p[] = { NULL, NULL }; static const char __initdata *i2s0_mux_p[] = { NULL, NULL, "i2s0m_div"}; static const char __initdata *i2s1_mux_p[] = { NULL, NULL, "i2s1m_div"}; static const char __initdata *clkout_mux_p[] = { NULL, NULL, "rtc"}; static u32 three_mux_table[] = {0, 1, 3}; static struct asm9260_mux_clock asm9260_mux_clks[] __initdata = { { 1, three_mux_table, "main_mux", main_mux_p, ARRAY_SIZE(main_mux_p), HW_MAINCLKSEL, }, { 1, three_mux_table, "uart_mux", main_mux_p, ARRAY_SIZE(main_mux_p), HW_UARTCLKSEL, }, { 1, three_mux_table, "wdt_mux", main_mux_p, ARRAY_SIZE(main_mux_p), HW_WDTCLKSEL, }, { 3, three_mux_table, "i2s0_mux", i2s0_mux_p, ARRAY_SIZE(i2s0_mux_p), HW_I2S0CLKSEL, }, { 3, three_mux_table, "i2s1_mux", i2s1_mux_p, ARRAY_SIZE(i2s1_mux_p), HW_I2S1CLKSEL, }, { 3, three_mux_table, "clkout_mux", clkout_mux_p, ARRAY_SIZE(clkout_mux_p), HW_CLKOUTCLKSEL, }, }; static void __init asm9260_acc_init(struct device_node *np) { struct clk_hw *hw; struct clk_hw **hws; const char *ref_clk, *pll_clk = "pll"; u32 rate; int n; u32 accuracy = 0; clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL); if (!clk_data) return; clk_data->num = MAX_CLKS; hws = clk_data->hws; base = of_io_request_and_map(np, 0, np->name); if (IS_ERR(base)) panic("%pOFn: unable to map resource", np); /* register pll */ rate = (ioread32(base + HW_SYSPLLCTRL) & 0xffff) * 1000000; ref_clk = of_clk_get_parent_name(np, 0); accuracy = clk_get_accuracy(__clk_lookup(ref_clk)); hw = clk_hw_register_fixed_rate_with_accuracy(NULL, pll_clk, ref_clk, 0, rate, accuracy); if (IS_ERR(hw)) panic("%pOFn: can't register REFCLK. Check DT!", np); for (n = 0; n < ARRAY_SIZE(asm9260_mux_clks); n++) { const struct asm9260_mux_clock *mc = &asm9260_mux_clks[n]; mc->parent_names[0] = ref_clk; mc->parent_names[1] = pll_clk; hw = clk_hw_register_mux_table(NULL, mc->name, mc->parent_names, mc->num_parents, mc->flags, base + mc->offset, 0, mc->mask, 0, mc->table, &asm9260_clk_lock); } /* clock mux gate cells */ for (n = 0; n < ARRAY_SIZE(asm9260_mux_gates); n++) { const struct asm9260_gate_data *gd = &asm9260_mux_gates[n]; hw = clk_hw_register_gate(NULL, gd->name, gd->parent_name, gd->flags | CLK_SET_RATE_PARENT, base + gd->reg, gd->bit_idx, 0, &asm9260_clk_lock); } /* clock div cells */ for (n = 0; n < ARRAY_SIZE(asm9260_div_clks); n++) { const struct asm9260_div_clk *dc = &asm9260_div_clks[n]; hws[dc->idx] = clk_hw_register_divider(NULL, dc->name, dc->parent_name, CLK_SET_RATE_PARENT, base + dc->reg, 0, 8, CLK_DIVIDER_ONE_BASED, &asm9260_clk_lock); } /* clock ahb gate cells */ for (n = 0; n < ARRAY_SIZE(asm9260_ahb_gates); n++) { const struct asm9260_gate_data *gd = &asm9260_ahb_gates[n]; hws[gd->idx] = clk_hw_register_gate(NULL, gd->name, gd->parent_name, gd->flags, base + gd->reg, gd->bit_idx, 0, &asm9260_clk_lock); } /* check for errors on leaf clocks */ for (n = 0; n < MAX_CLKS; n++) { if (!IS_ERR(hws[n])) continue; pr_err("%pOF: Unable to register leaf clock %d\n", np, n); goto fail; } /* register clk-provider */ of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data); return; fail: iounmap(base); } CLK_OF_DECLARE(asm9260_acc, "alphascale,asm9260-clock-controller", asm9260_acc_init);
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