From bae2f282a96e400a2bbcc8a545598289f36e1c32 Mon Sep 17 00:00:00 2001 From: Andy Yan Date: Thu, 1 Jun 2017 18:00:36 +0800 Subject: [PATCH] rockchip: clk: Add rv1108 clock driver Add clock driver support for Rockchip rv1108 soc Signed-off-by: Andy Yan Reviewed-by: Simon Glass --- .../include/asm/arch-rockchip/cru_rv1108.h | 111 ++++++++ arch/arm/include/asm/arch-rockchip/periph.h | 1 + drivers/clk/rockchip/Makefile | 1 + drivers/clk/rockchip/clk_rv1108.c | 223 +++++++++++++++ include/dt-bindings/clock/rv1108-cru.h | 269 ++++++++++++++++++ 5 files changed, 605 insertions(+) create mode 100644 arch/arm/include/asm/arch-rockchip/cru_rv1108.h create mode 100644 drivers/clk/rockchip/clk_rv1108.c create mode 100644 include/dt-bindings/clock/rv1108-cru.h diff --git a/arch/arm/include/asm/arch-rockchip/cru_rv1108.h b/arch/arm/include/asm/arch-rockchip/cru_rv1108.h new file mode 100644 index 0000000000..2a1ae692be --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/cru_rv1108.h @@ -0,0 +1,111 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * Author: Andy Yan + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef _ASM_ARCH_CRU_RV1108_H +#define _ASM_ARCH_CRU_RV1108_H + +#include + +#define OSC_HZ (24 * 1000 * 1000) + +#define APLL_HZ (600 * 1000000) +#define GPLL_HZ (594 * 1000000) + +struct rv1108_clk_priv { + struct rv1108_cru *cru; + ulong rate; +}; + +struct rv1108_cru { + struct rv1108_pll { + unsigned int con0; + unsigned int con1; + unsigned int con2; + unsigned int con3; + unsigned int con4; + unsigned int con5; + unsigned int reserved[2]; + } pll[3]; + unsigned int clksel_con[46]; + unsigned int reserved1[2]; + unsigned int clkgate_con[20]; + unsigned int reserved2[4]; + unsigned int softrst_con[13]; + unsigned int reserved3[3]; + unsigned int glb_srst_fst_val; + unsigned int glb_srst_snd_val; + unsigned int glb_cnt_th; + unsigned int misc_con; + unsigned int glb_rst_con; + unsigned int glb_rst_st; + unsigned int sdmmc_con[2]; + unsigned int sdio_con[2]; + unsigned int emmc_con[2]; +}; +check_member(rv1108_cru, emmc_con[1], 0x01ec); + +struct pll_div { + u32 refdiv; + u32 fbdiv; + u32 postdiv1; + u32 postdiv2; + u32 frac; +}; + +enum { + /* PLL CON0 */ + FBDIV_MASK = 0xfff, + FBDIV_SHIFT = 0, + + /* PLL CON1 */ + POSTDIV2_SHIFT = 12, + POSTDIV2_MASK = 7 << POSTDIV2_SHIFT, + POSTDIV1_SHIFT = 8, + POSTDIV1_MASK = 7 << POSTDIV1_SHIFT, + REFDIV_MASK = 0x3f, + REFDIV_SHIFT = 0, + + /* PLL CON2 */ + LOCK_STA_SHIFT = 31, + LOCK_STA_MASK = 1 << LOCK_STA_SHIFT, + FRACDIV_MASK = 0xffffff, + FRACDIV_SHIFT = 0, + + /* PLL CON3 */ + WORK_MODE_SHIFT = 8, + WORK_MODE_MASK = 1 << WORK_MODE_SHIFT, + WORK_MODE_SLOW = 0, + WORK_MODE_NORMAL = 1, + DSMPD_SHIFT = 3, + DSMPD_MASK = 1 << DSMPD_SHIFT, + + /* CLKSEL0_CON */ + CORE_PLL_SEL_SHIFT = 8, + CORE_PLL_SEL_MASK = 3 << CORE_PLL_SEL_SHIFT, + CORE_PLL_SEL_APLL = 0, + CORE_PLL_SEL_GPLL = 1, + CORE_PLL_SEL_DPLL = 2, + CORE_CLK_DIV_SHIFT = 0, + CORE_CLK_DIV_MASK = 0x1f << CORE_CLK_DIV_SHIFT, + + /* CLKSEL24_CON */ + MAC_PLL_SEL_SHIFT = 12, + MAC_PLL_SEL_MASK = 1 << MAC_PLL_SEL_SHIFT, + MAC_PLL_SEL_APLL = 0, + MAC_PLL_SEL_GPLL = 1, + RMII_EXTCLK_SEL_SHIFT = 8, + RMII_EXTCLK_SEL_MASK = 1 << RMII_EXTCLK_SEL_SHIFT, + MAC_CLK_DIV_MASK = 0x1f, + MAC_CLK_DIV_SHIFT = 0, + + /* CLKSEL27_CON */ + SFC_PLL_SEL_SHIFT = 7, + SFC_PLL_SEL_MASK = 1 << SFC_PLL_SEL_SHIFT, + SFC_PLL_SEL_DPLL = 0, + SFC_PLL_SEL_GPLL = 1, + SFC_CLK_DIV_SHIFT = 0, + SFC_CLK_DIV_MASK = 0x3f << SFC_CLK_DIV_SHIFT, +}; +#endif diff --git a/arch/arm/include/asm/arch-rockchip/periph.h b/arch/arm/include/asm/arch-rockchip/periph.h index 8018d47348..9f4bc2e107 100644 --- a/arch/arm/include/asm/arch-rockchip/periph.h +++ b/arch/arm/include/asm/arch-rockchip/periph.h @@ -42,6 +42,7 @@ enum periph_id { PERIPH_ID_SDMMC2, PERIPH_ID_HDMI, PERIPH_ID_GMAC, + PERIPH_ID_SFC, PERIPH_ID_COUNT, diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile index 8dc60f8923..e404c0cdb9 100644 --- a/drivers/clk/rockchip/Makefile +++ b/drivers/clk/rockchip/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_ROCKCHIP_RK3288) += clk_rk3288.o obj-$(CONFIG_ROCKCHIP_RK3328) += clk_rk3328.o obj-$(CONFIG_ROCKCHIP_RK3368) += clk_rk3368.o obj-$(CONFIG_ROCKCHIP_RK3399) += clk_rk3399.o +obj-$(CONFIG_ROCKCHIP_RV1108) += clk_rv1108.o diff --git a/drivers/clk/rockchip/clk_rv1108.c b/drivers/clk/rockchip/clk_rv1108.c new file mode 100644 index 0000000000..0a3ba3bff9 --- /dev/null +++ b/drivers/clk/rockchip/clk_rv1108.c @@ -0,0 +1,223 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * Author: Andy Yan + * SPDX-License-Identifier: GPL-2.0 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +enum { + VCO_MAX_HZ = 2400U * 1000000, + VCO_MIN_HZ = 600 * 1000000, + OUTPUT_MAX_HZ = 2400U * 1000000, + OUTPUT_MIN_HZ = 24 * 1000000, +}; + +#define RATE_TO_DIV(input_rate, output_rate) \ + ((input_rate) / (output_rate) - 1); + +#define DIV_TO_RATE(input_rate, div) ((input_rate) / ((div) + 1)) + +#define PLL_DIVISORS(hz, _refdiv, _postdiv1, _postdiv2) {\ + .refdiv = _refdiv,\ + .fbdiv = (u32)((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ),\ + .postdiv1 = _postdiv1, .postdiv2 = _postdiv2};\ + _Static_assert(((u64)hz * _refdiv * _postdiv1 * _postdiv2 / OSC_HZ) *\ + OSC_HZ / (_refdiv * _postdiv1 * _postdiv2) == hz,\ + #hz "Hz cannot be hit with PLL "\ + "divisors on line " __stringify(__LINE__)); + +/* use interge mode*/ +static const struct pll_div apll_init_cfg = PLL_DIVISORS(APLL_HZ, 1, 3, 1); +static const struct pll_div gpll_init_cfg = PLL_DIVISORS(GPLL_HZ, 2, 2, 1); + +static inline int rv1108_pll_id(enum rk_clk_id clk_id) +{ + int id = 0; + + switch (clk_id) { + case CLK_ARM: + case CLK_DDR: + id = clk_id - 1; + break; + case CLK_GENERAL: + id = 2; + break; + default: + printf("invalid pll id:%d\n", clk_id); + id = -1; + break; + } + + return id; +} + +static uint32_t rkclk_pll_get_rate(struct rv1108_cru *cru, + enum rk_clk_id clk_id) +{ + uint32_t refdiv, fbdiv, postdiv1, postdiv2; + uint32_t con0, con1, con3; + int pll_id = rv1108_pll_id(clk_id); + struct rv1108_pll *pll = &cru->pll[pll_id]; + uint32_t freq; + + con3 = readl(&pll->con3); + + if (con3 & WORK_MODE_MASK) { + con0 = readl(&pll->con0); + con1 = readl(&pll->con1); + fbdiv = (con0 >> FBDIV_SHIFT) & FBDIV_MASK; + postdiv1 = (con1 & POSTDIV1_MASK) >> POSTDIV1_SHIFT; + postdiv2 = (con1 & POSTDIV2_MASK) >> POSTDIV2_SHIFT; + refdiv = (con1 & REFDIV_MASK) >> REFDIV_SHIFT; + freq = (24 * fbdiv / (refdiv * postdiv1 * postdiv2)) * 1000000; + } else { + freq = OSC_HZ; + } + + return freq; +} + +static int rv1108_mac_set_clk(struct rv1108_cru *cru, ulong rate) +{ + uint32_t con = readl(&cru->clksel_con[24]); + ulong pll_rate; + uint8_t div; + + if ((con >> MAC_PLL_SEL_SHIFT) & MAC_PLL_SEL_GPLL) + pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + else + pll_rate = rkclk_pll_get_rate(cru, CLK_ARM); + + /*default set 50MHZ for gmac*/ + if (!rate) + rate = 50000000; + + div = DIV_ROUND_UP(pll_rate, rate) - 1; + if (div <= 0x1f) + rk_clrsetreg(&cru->clksel_con[24], MAC_CLK_DIV_MASK, + div << MAC_CLK_DIV_SHIFT); + else + debug("Unsupported div for gmac:%d\n", div); + + return DIV_TO_RATE(pll_rate, div); +} + +static int rv1108_sfc_set_clk(struct rv1108_cru *cru, uint rate) +{ + u32 con = readl(&cru->clksel_con[27]); + u32 pll_rate; + u32 div; + + if ((con >> SFC_PLL_SEL_SHIFT) && SFC_PLL_SEL_GPLL) + pll_rate = rkclk_pll_get_rate(cru, CLK_GENERAL); + else + pll_rate = rkclk_pll_get_rate(cru, CLK_DDR); + + div = DIV_ROUND_UP(pll_rate, rate) - 1; + if (div <= 0x3f) + rk_clrsetreg(&cru->clksel_con[27], SFC_CLK_DIV_MASK, + div << SFC_CLK_DIV_SHIFT); + else + debug("Unsupported sfc clk rate:%d\n", rate); + + return DIV_TO_RATE(pll_rate, div); +} + +static ulong rv1108_clk_get_rate(struct clk *clk) +{ + struct rv1108_clk_priv *priv = dev_get_priv(clk->dev); + + switch (clk->id) { + case 0 ... 63: + return rkclk_pll_get_rate(priv->cru, clk->id); + default: + return -ENOENT; + } +} + +static ulong rv1108_clk_set_rate(struct clk *clk, ulong rate) +{ + struct rv1108_clk_priv *priv = dev_get_priv(clk->dev); + ulong new_rate; + + switch (clk->id) { + case SCLK_MAC: + new_rate = rv1108_mac_set_clk(priv->cru, rate); + break; + case SCLK_SFC: + new_rate = rv1108_sfc_set_clk(priv->cru, rate); + break; + default: + return -ENOENT; + } + + return new_rate; +} + +static const struct clk_ops rv1108_clk_ops = { + .get_rate = rv1108_clk_get_rate, + .set_rate = rv1108_clk_set_rate, +}; + +static void rkclk_init(struct rv1108_cru *cru) +{ + unsigned int apll = rkclk_pll_get_rate(cru, CLK_ARM); + unsigned int dpll = rkclk_pll_get_rate(cru, CLK_DDR); + unsigned int gpll = rkclk_pll_get_rate(cru, CLK_GENERAL); + + rk_clrsetreg(&cru->clksel_con[0], CORE_CLK_DIV_MASK, + 0 << MAC_CLK_DIV_SHIFT); + + printf("APLL: %d DPLL:%d GPLL:%d\n", apll, dpll, gpll); +} + +static int rv1108_clk_probe(struct udevice *dev) +{ + struct rv1108_clk_priv *priv = dev_get_priv(dev); + + priv->cru = (struct rv1108_cru *)devfdt_get_addr(dev); + + rkclk_init(priv->cru); + + return 0; +} + +static int rv1108_clk_bind(struct udevice *dev) +{ + int ret; + + /* The reset driver does not have a device node, so bind it here */ + ret = device_bind_driver(gd->dm_root, "rv1108_sysreset", "reset", &dev); + if (ret) + error("No Rv1108 reset driver: ret=%d\n", ret); + + return 0; +} + +static const struct udevice_id rv1108_clk_ids[] = { + { .compatible = "rockchip,rv1108-cru" }, + { } +}; + +U_BOOT_DRIVER(clk_rv1108) = { + .name = "clk_rv1108", + .id = UCLASS_CLK, + .of_match = rv1108_clk_ids, + .priv_auto_alloc_size = sizeof(struct rv1108_clk_priv), + .ops = &rv1108_clk_ops, + .bind = rv1108_clk_bind, + .probe = rv1108_clk_probe, +}; diff --git a/include/dt-bindings/clock/rv1108-cru.h b/include/dt-bindings/clock/rv1108-cru.h new file mode 100644 index 0000000000..d2ad3bb52d --- /dev/null +++ b/include/dt-bindings/clock/rv1108-cru.h @@ -0,0 +1,269 @@ +/* + * Copyright (c) 2017 Rockchip Electronics Co. Ltd. + * Author: Shawn Lin + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RV1108_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RV1108_H + +/* pll id */ +#define PLL_APLL 0 +#define PLL_DPLL 1 +#define PLL_GPLL 2 +#define ARMCLK 3 + +/* sclk gates (special clocks) */ +#define SCLK_MAC 64 +#define SCLK_SPI0 65 +#define SCLK_NANDC 67 +#define SCLK_SDMMC 68 +#define SCLK_SDIO 69 +#define SCLK_EMMC 71 +#define SCLK_UART0 72 +#define SCLK_UART1 73 +#define SCLK_UART2 74 +#define SCLK_I2S0 75 +#define SCLK_I2S1 76 +#define SCLK_I2S2 77 +#define SCLK_TIMER0 78 +#define SCLK_TIMER1 79 +#define SCLK_SFC 80 +#define SCLK_SDMMC_DRV 81 +#define SCLK_SDIO_DRV 82 +#define SCLK_EMMC_DRV 83 +#define SCLK_SDMMC_SAMPLE 84 +#define SCLK_SDIO_SAMPLE 85 +#define SCLK_EMMC_SAMPLE 86 +#define SCLK_MAC_RX 87 +#define SCLK_MAC_TX 88 +#define SCLK_MACREF 89 +#define SCLK_MACREF_OUT 90 + + +/* aclk gates */ +#define ACLK_DMAC 192 +#define ACLK_PRE 193 +#define ACLK_CORE 194 +#define ACLK_ENMCORE 195 +#define ACLK_GMAC 196 + + +/* pclk gates */ +#define PCLK_GPIO1 256 +#define PCLK_GPIO2 257 +#define PCLK_GPIO3 258 +#define PCLK_GRF 259 +#define PCLK_I2C1 260 +#define PCLK_I2C2 261 +#define PCLK_I2C3 262 +#define PCLK_SPI 263 +#define PCLK_SFC 264 +#define PCLK_UART0 265 +#define PCLK_UART1 266 +#define PCLK_UART2 267 +#define PCLK_TSADC 268 +#define PCLK_PWM 269 +#define PCLK_TIMER 270 +#define PCLK_PERI 271 +#define PCLK_GMAC 272 + +/* hclk gates */ +#define HCLK_I2S0_8CH 320 +#define HCLK_I2S1_8CH 321 +#define HCLK_I2S2_2CH 322 +#define HCLK_NANDC 323 +#define HCLK_SDMMC 324 +#define HCLK_SDIO 325 +#define HCLK_EMMC 326 +#define HCLK_PERI 327 +#define HCLK_SFC 328 + +#define CLK_NR_CLKS (HCLK_SFC + 1) + +/* reset id */ +#define SRST_CORE_PO_AD 0 +#define SRST_CORE_AD 1 +#define SRST_L2_AD 2 +#define SRST_CPU_NIU_AD 3 +#define SRST_CORE_PO 4 +#define SRST_CORE 5 +#define SRST_L2 6 +#define SRST_CORE_DBG 8 +#define PRST_DBG 9 +#define RST_DAP 10 +#define PRST_DBG_NIU 11 +#define ARST_STRC_SYS_AD 15 + +#define SRST_DDRPHY_CLKDIV 16 +#define SRST_DDRPHY 17 +#define PRST_DDRPHY 18 +#define PRST_HDMIPHY 19 +#define PRST_VDACPHY 20 +#define PRST_VADCPHY 21 +#define PRST_MIPI_CSI_PHY 22 +#define PRST_MIPI_DSI_PHY 23 +#define PRST_ACODEC 24 +#define ARST_BUS_NIU 25 +#define PRST_TOP_NIU 26 +#define ARST_INTMEM 27 +#define HRST_ROM 28 +#define ARST_DMAC 29 +#define SRST_MSCH_NIU 30 +#define PRST_MSCH_NIU 31 + +#define PRST_DDRUPCTL 32 +#define NRST_DDRUPCTL 33 +#define PRST_DDRMON 34 +#define HRST_I2S0_8CH 35 +#define MRST_I2S0_8CH 36 +#define HRST_I2S1_2CH 37 +#define MRST_IS21_2CH 38 +#define HRST_I2S2_2CH 39 +#define MRST_I2S2_2CH 40 +#define HRST_CRYPTO 41 +#define SRST_CRYPTO 42 +#define PRST_SPI 43 +#define SRST_SPI 44 +#define PRST_UART0 45 +#define PRST_UART1 46 +#define PRST_UART2 47 + +#define SRST_UART0 48 +#define SRST_UART1 49 +#define SRST_UART2 50 +#define PRST_I2C1 51 +#define PRST_I2C2 52 +#define PRST_I2C3 53 +#define SRST_I2C1 54 +#define SRST_I2C2 55 +#define SRST_I2C3 56 +#define PRST_PWM1 58 +#define SRST_PWM1 60 +#define PRST_WDT 61 +#define PRST_GPIO1 62 +#define PRST_GPIO2 63 + +#define PRST_GPIO3 64 +#define PRST_GRF 65 +#define PRST_EFUSE 66 +#define PRST_EFUSE512 67 +#define PRST_TIMER0 68 +#define SRST_TIMER0 69 +#define SRST_TIMER1 70 +#define PRST_TSADC 71 +#define SRST_TSADC 72 +#define PRST_SARADC 73 +#define SRST_SARADC 74 +#define HRST_SYSBUS 75 +#define PRST_USBGRF 76 + +#define ARST_PERIPH_NIU 80 +#define HRST_PERIPH_NIU 81 +#define PRST_PERIPH_NIU 82 +#define HRST_PERIPH 83 +#define HRST_SDMMC 84 +#define HRST_SDIO 85 +#define HRST_EMMC 86 +#define HRST_NANDC 87 +#define NRST_NANDC 88 +#define HRST_SFC 89 +#define SRST_SFC 90 +#define ARST_GMAC 91 +#define HRST_OTG 92 +#define SRST_OTG 93 +#define SRST_OTG_ADP 94 +#define HRST_HOST0 95 + +#define HRST_HOST0_AUX 96 +#define HRST_HOST0_ARB 97 +#define SRST_HOST0_EHCIPHY 98 +#define SRST_HOST0_UTMI 99 +#define SRST_USBPOR 100 +#define SRST_UTMI0 101 +#define SRST_UTMI1 102 + +#define ARST_VIO0_NIU 102 +#define ARST_VIO1_NIU 103 +#define HRST_VIO_NIU 104 +#define PRST_VIO_NIU 105 +#define ARST_VOP 106 +#define HRST_VOP 107 +#define DRST_VOP 108 +#define ARST_IEP 109 +#define HRST_IEP 110 +#define ARST_RGA 111 +#define HRST_RGA 112 +#define SRST_RGA 113 +#define PRST_CVBS 114 +#define PRST_HDMI 115 +#define SRST_HDMI 116 +#define PRST_MIPI_DSI 117 + +#define ARST_ISP_NIU 118 +#define HRST_ISP_NIU 119 +#define HRST_ISP 120 +#define SRST_ISP 121 +#define ARST_VIP0 122 +#define HRST_VIP0 123 +#define PRST_VIP0 124 +#define ARST_VIP1 125 +#define HRST_VIP1 126 +#define PRST_VIP1 127 +#define ARST_VIP2 128 +#define HRST_VIP2 129 +#define PRST_VIP2 120 +#define ARST_VIP3 121 +#define HRST_VIP3 122 +#define PRST_VIP4 123 + +#define PRST_CIF1TO4 124 +#define SRST_CVBS_CLK 125 +#define HRST_CVBS 126 + +#define ARST_VPU_NIU 140 +#define HRST_VPU_NIU 141 +#define ARST_VPU 142 +#define HRST_VPU 143 +#define ARST_RKVDEC_NIU 144 +#define HRST_RKVDEC_NIU 145 +#define ARST_RKVDEC 146 +#define HRST_RKVDEC 147 +#define SRST_RKVDEC_CABAC 148 +#define SRST_RKVDEC_CORE 149 +#define ARST_RKVENC_NIU 150 +#define HRST_RKVENC_NIU 151 +#define ARST_RKVENC 152 +#define HRST_RKVENC 153 +#define SRST_RKVENC_CORE 154 + +#define SRST_DSP_CORE 156 +#define SRST_DSP_SYS 157 +#define SRST_DSP_GLOBAL 158 +#define SRST_DSP_OECM 159 +#define PRST_DSP_IOP_NIU 160 +#define ARST_DSP_EPP_NIU 161 +#define ARST_DSP_EDP_NIU 162 +#define PRST_DSP_DBG_NIU 163 +#define PRST_DSP_CFG_NIU 164 +#define PRST_DSP_GRF 165 +#define PRST_DSP_MAILBOX 166 +#define PRST_DSP_INTC 167 +#define PRST_DSP_PFM_MON 169 +#define SRST_DSP_PFM_MON 170 +#define ARST_DSP_EDAP_NIU 171 + +#define SRST_PMU 172 +#define SRST_PMU_I2C0 173 +#define PRST_PMU_I2C0 174 +#define PRST_PMU_GPIO0 175 +#define PRST_PMU_INTMEM 176 +#define PRST_PMU_PWM0 177 +#define SRST_PMU_PWM0 178 +#define PRST_PMU_GRF 179 +#define SRST_PMU_NIU 180 +#define SRST_PMU_PVTM 181 +#define ARST_DSP_EDP_PERF 184 +#define ARST_DSP_EPP_PERF 185 + +#endif /* _DT_BINDINGS_CLK_ROCKCHIP_RV1108_H */ -- 2.39.2