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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright 2018 NXP
- * Peng Fan <peng.fan@nxp.com>
- */
- #include <common.h>
- #include <clk-uclass.h>
- #include <dm.h>
- #include <log.h>
- #include <asm/arch/sci/sci.h>
- #include <asm/arch/clock.h>
- #include <dt-bindings/clock/imx8qxp-clock.h>
- #include <dt-bindings/soc/imx_rsrc.h>
- #include <misc.h>
- #include "clk-imx8.h"
- #if CONFIG_IS_ENABLED(CMD_CLK)
- struct imx8_clks imx8_clk_names[] = {
- { IMX8QXP_A35_DIV, "A35_DIV" },
- { IMX8QXP_I2C0_CLK, "I2C0" },
- { IMX8QXP_I2C1_CLK, "I2C1" },
- { IMX8QXP_I2C2_CLK, "I2C2" },
- { IMX8QXP_I2C3_CLK, "I2C3" },
- { IMX8QXP_UART0_CLK, "UART0" },
- { IMX8QXP_UART1_CLK, "UART1" },
- { IMX8QXP_UART2_CLK, "UART2" },
- { IMX8QXP_UART3_CLK, "UART3" },
- { IMX8QXP_SDHC0_CLK, "SDHC0" },
- { IMX8QXP_SDHC1_CLK, "SDHC1" },
- { IMX8QXP_ENET0_AHB_CLK, "ENET0_AHB" },
- { IMX8QXP_ENET0_IPG_CLK, "ENET0_IPG" },
- { IMX8QXP_ENET0_REF_DIV, "ENET0_REF" },
- { IMX8QXP_ENET0_PTP_CLK, "ENET0_PTP" },
- { IMX8QXP_ENET1_AHB_CLK, "ENET1_AHB" },
- { IMX8QXP_ENET1_IPG_CLK, "ENET1_IPG" },
- { IMX8QXP_ENET1_REF_DIV, "ENET1_REF" },
- { IMX8QXP_ENET1_PTP_CLK, "ENET1_PTP" },
- };
- int num_clks = ARRAY_SIZE(imx8_clk_names);
- #endif
- ulong imx8_clk_get_rate(struct clk *clk)
- {
- sc_pm_clk_t pm_clk;
- ulong rate;
- u16 resource;
- int ret;
- debug("%s(#%lu)\n", __func__, clk->id);
- switch (clk->id) {
- case IMX8QXP_A35_DIV:
- resource = SC_R_A35;
- pm_clk = SC_PM_CLK_CPU;
- break;
- case IMX8QXP_I2C0_CLK:
- case IMX8QXP_I2C0_IPG_CLK:
- resource = SC_R_I2C_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C1_CLK:
- case IMX8QXP_I2C1_IPG_CLK:
- resource = SC_R_I2C_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C2_CLK:
- case IMX8QXP_I2C2_IPG_CLK:
- resource = SC_R_I2C_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C3_CLK:
- case IMX8QXP_I2C3_IPG_CLK:
- resource = SC_R_I2C_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC0_IPG_CLK:
- case IMX8QXP_SDHC0_CLK:
- case IMX8QXP_SDHC0_DIV:
- resource = SC_R_SDHC_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC1_IPG_CLK:
- case IMX8QXP_SDHC1_CLK:
- case IMX8QXP_SDHC1_DIV:
- resource = SC_R_SDHC_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART0_IPG_CLK:
- case IMX8QXP_UART0_CLK:
- resource = SC_R_UART_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART1_CLK:
- resource = SC_R_UART_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART2_CLK:
- resource = SC_R_UART_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART3_CLK:
- resource = SC_R_UART_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET0_IPG_CLK:
- case IMX8QXP_ENET0_AHB_CLK:
- case IMX8QXP_ENET0_REF_DIV:
- case IMX8QXP_ENET0_PTP_CLK:
- resource = SC_R_ENET_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET1_IPG_CLK:
- case IMX8QXP_ENET1_AHB_CLK:
- case IMX8QXP_ENET1_REF_DIV:
- case IMX8QXP_ENET1_PTP_CLK:
- resource = SC_R_ENET_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- default:
- if (clk->id < IMX8QXP_UART0_IPG_CLK ||
- clk->id >= IMX8QXP_CLK_END) {
- printf("%s(Invalid clk ID #%lu)\n",
- __func__, clk->id);
- return -EINVAL;
- }
- return -ENOTSUPP;
- };
- ret = sc_pm_get_clock_rate(-1, resource, pm_clk,
- (sc_pm_clock_rate_t *)&rate);
- if (ret) {
- printf("%s err %d\n", __func__, ret);
- return ret;
- }
- return rate;
- }
- ulong imx8_clk_set_rate(struct clk *clk, unsigned long rate)
- {
- sc_pm_clk_t pm_clk;
- u32 new_rate = rate;
- u16 resource;
- int ret;
- debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
- switch (clk->id) {
- case IMX8QXP_I2C0_CLK:
- case IMX8QXP_I2C0_IPG_CLK:
- resource = SC_R_I2C_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C1_CLK:
- case IMX8QXP_I2C1_IPG_CLK:
- resource = SC_R_I2C_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C2_CLK:
- case IMX8QXP_I2C2_IPG_CLK:
- resource = SC_R_I2C_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C3_CLK:
- case IMX8QXP_I2C3_IPG_CLK:
- resource = SC_R_I2C_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART0_CLK:
- resource = SC_R_UART_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART1_CLK:
- resource = SC_R_UART_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART2_CLK:
- resource = SC_R_UART_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART3_CLK:
- resource = SC_R_UART_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC0_IPG_CLK:
- case IMX8QXP_SDHC0_CLK:
- case IMX8QXP_SDHC0_DIV:
- resource = SC_R_SDHC_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC1_SEL:
- case IMX8QXP_SDHC0_SEL:
- return 0;
- case IMX8QXP_SDHC1_IPG_CLK:
- case IMX8QXP_SDHC1_CLK:
- case IMX8QXP_SDHC1_DIV:
- resource = SC_R_SDHC_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET0_IPG_CLK:
- case IMX8QXP_ENET0_AHB_CLK:
- case IMX8QXP_ENET0_REF_DIV:
- case IMX8QXP_ENET0_PTP_CLK:
- resource = SC_R_ENET_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET1_IPG_CLK:
- case IMX8QXP_ENET1_AHB_CLK:
- case IMX8QXP_ENET1_REF_DIV:
- case IMX8QXP_ENET1_PTP_CLK:
- resource = SC_R_ENET_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- default:
- if (clk->id < IMX8QXP_UART0_IPG_CLK ||
- clk->id >= IMX8QXP_CLK_END) {
- printf("%s(Invalid clk ID #%lu)\n",
- __func__, clk->id);
- return -EINVAL;
- }
- return -ENOTSUPP;
- };
- ret = sc_pm_set_clock_rate(-1, resource, pm_clk, &new_rate);
- if (ret) {
- printf("%s err %d\n", __func__, ret);
- return ret;
- }
- return new_rate;
- }
- int __imx8_clk_enable(struct clk *clk, bool enable)
- {
- sc_pm_clk_t pm_clk;
- u16 resource;
- int ret;
- debug("%s(#%lu)\n", __func__, clk->id);
- switch (clk->id) {
- case IMX8QXP_I2C0_CLK:
- case IMX8QXP_I2C0_IPG_CLK:
- resource = SC_R_I2C_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C1_CLK:
- case IMX8QXP_I2C1_IPG_CLK:
- resource = SC_R_I2C_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C2_CLK:
- case IMX8QXP_I2C2_IPG_CLK:
- resource = SC_R_I2C_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_I2C3_CLK:
- case IMX8QXP_I2C3_IPG_CLK:
- resource = SC_R_I2C_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART0_CLK:
- resource = SC_R_UART_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART1_CLK:
- resource = SC_R_UART_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART2_CLK:
- resource = SC_R_UART_2;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_UART3_CLK:
- resource = SC_R_UART_3;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC0_IPG_CLK:
- case IMX8QXP_SDHC0_CLK:
- case IMX8QXP_SDHC0_DIV:
- resource = SC_R_SDHC_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_SDHC1_IPG_CLK:
- case IMX8QXP_SDHC1_CLK:
- case IMX8QXP_SDHC1_DIV:
- resource = SC_R_SDHC_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET0_IPG_CLK:
- case IMX8QXP_ENET0_AHB_CLK:
- case IMX8QXP_ENET0_REF_DIV:
- case IMX8QXP_ENET0_PTP_CLK:
- resource = SC_R_ENET_0;
- pm_clk = SC_PM_CLK_PER;
- break;
- case IMX8QXP_ENET1_IPG_CLK:
- case IMX8QXP_ENET1_AHB_CLK:
- case IMX8QXP_ENET1_REF_DIV:
- case IMX8QXP_ENET1_PTP_CLK:
- resource = SC_R_ENET_1;
- pm_clk = SC_PM_CLK_PER;
- break;
- default:
- if (clk->id < IMX8QXP_UART0_IPG_CLK ||
- clk->id >= IMX8QXP_CLK_END) {
- printf("%s(Invalid clk ID #%lu)\n",
- __func__, clk->id);
- return -EINVAL;
- }
- return -ENOTSUPP;
- }
- ret = sc_pm_clock_enable(-1, resource, pm_clk, enable, 0);
- if (ret) {
- printf("%s err %d\n", __func__, ret);
- return ret;
- }
- return 0;
- }
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