mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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139 lines
4.5 KiB
C
139 lines
4.5 KiB
C
/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "car.h"
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#include "timers.h"
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#include "utils.h"
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static inline uint32_t get_clk_source_reg(CarDevice dev) {
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switch (dev) {
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case CARDEVICE_UARTA: return 0x178;
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case CARDEVICE_UARTB: return 0x17C;
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case CARDEVICE_UARTC: return 0x1A0;
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case CARDEVICE_I2C1: return 0x124;
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case CARDEVICE_I2C5: return 0x128;
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case CARDEVICE_UNK: return 0;
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case CARDEVICE_SE: return 0x42C;
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case CARDEVICE_HOST1X: return 0x180;
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case CARDEVICE_TSEC: return 0x1F4;
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case CARDEVICE_SOR_SAFE: return 0;
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case CARDEVICE_SOR0: return 0;
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case CARDEVICE_SOR1: return 0x410;
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case CARDEVICE_KFUSE: return 0;
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case CARDEVICE_CL_DVFS: return 0;
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case CARDEVICE_CORESIGHT: return 0x1D4;
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case CARDEVICE_ACTMON: return 0x3E8;
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case CARDEVICE_BPMP: return 0;
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default: generic_panic();
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}
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}
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static inline uint32_t get_clk_source_val(CarDevice dev) {
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switch (dev) {
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case CARDEVICE_UARTA: return 0;
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case CARDEVICE_UARTB: return 0;
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case CARDEVICE_UARTC: return 0;
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case CARDEVICE_I2C1: return 6;
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case CARDEVICE_I2C5: return 6;
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case CARDEVICE_UNK: return 0;
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case CARDEVICE_SE: return 0;
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case CARDEVICE_HOST1X: return 4;
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case CARDEVICE_TSEC: return 0;
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case CARDEVICE_SOR_SAFE: return 0;
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case CARDEVICE_SOR0: return 0;
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case CARDEVICE_SOR1: return 0;
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case CARDEVICE_KFUSE: return 0;
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case CARDEVICE_CL_DVFS: return 0;
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case CARDEVICE_CORESIGHT: return 0;
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case CARDEVICE_ACTMON: return 6;
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case CARDEVICE_BPMP: return 0;
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default: generic_panic();
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}
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}
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static inline uint32_t get_clk_source_div(CarDevice dev) {
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switch (dev) {
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case CARDEVICE_UARTA: return 0;
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case CARDEVICE_UARTB: return 0;
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case CARDEVICE_UARTC: return 0;
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case CARDEVICE_I2C1: return 0;
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case CARDEVICE_I2C5: return 0;
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case CARDEVICE_UNK: return 0;
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case CARDEVICE_SE: return 0;
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case CARDEVICE_HOST1X: return 3;
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case CARDEVICE_TSEC: return 2;
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case CARDEVICE_SOR_SAFE: return 0;
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case CARDEVICE_SOR0: return 0;
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case CARDEVICE_SOR1: return 2;
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case CARDEVICE_KFUSE: return 0;
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case CARDEVICE_CL_DVFS: return 0;
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case CARDEVICE_CORESIGHT: return 4;
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case CARDEVICE_ACTMON: return 0;
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case CARDEVICE_BPMP: return 0;
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default: generic_panic();
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}
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}
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static uint32_t g_clk_reg_offsets[NUM_CAR_BANKS] = {0x010, 0x014, 0x018, 0x360, 0x364, 0x280, 0x298};
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static uint32_t g_rst_reg_offsets[NUM_CAR_BANKS] = {0x004, 0x008, 0x00C, 0x358, 0x35C, 0x28C, 0x2A4};
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void clk_enable(CarDevice dev) {
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uint32_t clk_source_reg;
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if ((clk_source_reg = get_clk_source_reg(dev))) {
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MAKE_CAR_REG(clk_source_reg) = (get_clk_source_val(dev) << 29) | get_clk_source_div(dev);
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}
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MAKE_CAR_REG(g_clk_reg_offsets[dev >> 5]) |= BIT(dev & 0x1F);
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}
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void clk_disable(CarDevice dev) {
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MAKE_CAR_REG(g_clk_reg_offsets[dev >> 5]) &= ~(BIT(dev & 0x1F));
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}
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void rst_enable(CarDevice dev) {
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MAKE_CAR_REG(g_rst_reg_offsets[dev >> 5]) |= BIT(dev & 0x1F);
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}
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void rst_disable(CarDevice dev) {
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MAKE_CAR_REG(g_rst_reg_offsets[dev >> 5]) &= ~(BIT(dev & 0x1F));
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}
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void clkrst_enable(CarDevice dev) {
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clk_enable(dev);
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rst_disable(dev);
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}
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void clkrst_disable(CarDevice dev) {
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rst_enable(dev);
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clk_disable(dev);
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}
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void clkrst_reboot(CarDevice dev) {
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clkrst_disable(dev);
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if (dev == CARDEVICE_KFUSE) {
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/* Workaround for KFUSE clock. */
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clk_enable(dev);
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udelay(100);
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rst_disable(dev);
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udelay(200);
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} else {
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clkrst_enable(dev);
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}
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}
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void clkrst_enable_fuse_regs(bool enable) {
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volatile tegra_car_t *car = car_get_regs();
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car->misc_clk_enb = ((car->misc_clk_enb & 0xEFFFFFFF) | ((enable & 1) << 28));
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}
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