diff options
Diffstat (limited to 'board/micronas/vct/dcgu.c')
| -rw-r--r-- | board/micronas/vct/dcgu.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/board/micronas/vct/dcgu.c b/board/micronas/vct/dcgu.c new file mode 100644 index 000000000..b2e86b72e --- /dev/null +++ b/board/micronas/vct/dcgu.c @@ -0,0 +1,258 @@ +/* + * (C) Copyright 2009 Stefan Roese <sr@denx.de>, DENX Software Engineering + * + * Original Author Guenter Gebhardt + * Copyright (C) 2006 Micronas GmbH + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/errno.h> + +#include "vct.h" + +int dcgu_set_clk_switch(enum dcgu_hw_module module, enum dcgu_switch setup) +{ + u32 enable; + union dcgu_clk_en1 en1; + union dcgu_clk_en2 en2; + + switch (setup) { + case DCGU_SWITCH_ON: + enable = 1; + break; + case DCGU_SWITCH_OFF: + enable = 0; + break; + default: + printf("%s:%i:Invalid clock switch: %i\n", __FILE__, __LINE__, + setup); + return -EINVAL; + } + + if (module == DCGU_HW_MODULE_CPU) + en2.reg = reg_read(DCGU_CLK_EN2(DCGU_BASE)); + else + en1.reg = reg_read(DCGU_CLK_EN1(DCGU_BASE)); + + switch (module) { + case DCGU_HW_MODULE_MSMC: + en1.bits.en_clkmsmc = enable; + break; + case DCGU_HW_MODULE_SSI_S: + en1.bits.en_clkssi_s = enable; + break; + case DCGU_HW_MODULE_SSI_M: + en1.bits.en_clkssi_m = enable; + break; + case DCGU_HW_MODULE_SMC: + en1.bits.en_clksmc = enable; + break; + case DCGU_HW_MODULE_EBI: + en1.bits.en_clkebi = enable; + break; + case DCGU_HW_MODULE_USB_PLL: + en1.bits.en_usbpll = enable; + break; + case DCGU_HW_MODULE_USB_60: + en1.bits.en_clkusb60 = enable; + break; + case DCGU_HW_MODULE_USB_24: + en1.bits.en_clkusb24 = enable; + break; + case DCGU_HW_MODULE_UART_2: + en1.bits.en_clkuart2 = enable; + break; + case DCGU_HW_MODULE_UART_1: + en1.bits.en_clkuart1 = enable; + break; + case DCGU_HW_MODULE_PERI: + en1.bits.en_clkperi20 = enable; + break; + case DCGU_HW_MODULE_CPU: + en2.bits.en_clkcpu = enable; + break; + case DCGU_HW_MODULE_I2S: + en1.bits.en_clk_i2s_dly = enable; + break; + case DCGU_HW_MODULE_ABP_SCC: + en1.bits.en_clk_scc_abp = enable; + break; + case DCGU_HW_MODULE_SPDIF: + en1.bits.en_clk_dtv_spdo = enable; + break; + case DCGU_HW_MODULE_AD: + en1.bits.en_clkad = enable; + break; + case DCGU_HW_MODULE_MVD: + en1.bits.en_clkmvd = enable; + break; + case DCGU_HW_MODULE_TSD: + en1.bits.en_clktsd = enable; + break; + case DCGU_HW_MODULE_GA: + en1.bits.en_clkga = enable; + break; + case DCGU_HW_MODULE_DVP: + en1.bits.en_clkdvp = enable; + break; + case DCGU_HW_MODULE_MR2: + en1.bits.en_clkmr2 = enable; + break; + case DCGU_HW_MODULE_MR1: + en1.bits.en_clkmr1 = enable; + break; + default: + printf("%s:%i:Invalid hardware module: %i\n", __FILE__, + __LINE__, module); + return -EINVAL; + } + + /* + * The reg_read() following the reg_write() below forces the write to + * be really done on the bus. + * Otherwise the clock may not be switched on when this API function + * returns, which may cause an bus error if a registers of the hardware + * module connected to the clock is accessed. + */ + if (module == DCGU_HW_MODULE_CPU) { + reg_write(DCGU_CLK_EN2(DCGU_BASE), en2.reg); + en2.reg = reg_read(DCGU_CLK_EN2(DCGU_BASE)); + } else { + reg_write(DCGU_CLK_EN1(DCGU_BASE), en1.reg); + en1.reg = reg_read(DCGU_CLK_EN1(DCGU_BASE)); + } + + return 0; +} + +int dcgu_set_reset_switch(enum dcgu_hw_module module, enum dcgu_switch setup) +{ + union dcgu_reset_unit1 val; + u32 enable; + + switch (setup) { + case DCGU_SWITCH_ON: + enable = 1; + break; + case DCGU_SWITCH_OFF: + enable = 0; + break; + default: + printf("%s:%i:Invalid reset switch: %i\n", __FILE__, __LINE__, + setup); + return -EINVAL; + } + + val.reg = reg_read(DCGU_RESET_UNIT1(DCGU_BASE)); + switch (module) { + case DCGU_HW_MODULE_MSMC: + val.bits.swreset_clkmsmc = enable; + break; + case DCGU_HW_MODULE_SSI_S: + val.bits.swreset_clkssi_s = enable; + break; + case DCGU_HW_MODULE_SSI_M: + val.bits.swreset_clkssi_m = enable; + break; + case DCGU_HW_MODULE_SMC: + val.bits.swreset_clksmc = enable; + break; + case DCGU_HW_MODULE_EBI: + val.bits.swreset_clkebi = enable; + break; + case DCGU_HW_MODULE_USB_60: + val.bits.swreset_clkusb60 = enable; + break; + case DCGU_HW_MODULE_USB_24: + val.bits.swreset_clkusb24 = enable; + break; + case DCGU_HW_MODULE_UART_2: + val.bits.swreset_clkuart2 = enable; + break; + case DCGU_HW_MODULE_UART_1: + val.bits.swreset_clkuart1 = enable; + break; + case DCGU_HW_MODULE_PWM: + val.bits.swreset_pwm = enable; + break; + case DCGU_HW_MODULE_GPT: + val.bits.swreset_gpt = enable; + break; + case DCGU_HW_MODULE_I2C2: + val.bits.swreset_i2c2 = enable; + break; + case DCGU_HW_MODULE_I2C1: + val.bits.swreset_i2c1 = enable; + break; + case DCGU_HW_MODULE_GPIO2: + val.bits.swreset_gpio2 = enable; + break; + case DCGU_HW_MODULE_GPIO1: + val.bits.swreset_gpio1 = enable; + break; + case DCGU_HW_MODULE_CPU: + val.bits.swreset_clkcpu = enable; + break; + case DCGU_HW_MODULE_I2S: + val.bits.swreset_clk_i2s_dly = enable; + break; + case DCGU_HW_MODULE_ABP_SCC: + val.bits.swreset_clk_scc_abp = enable; + break; + case DCGU_HW_MODULE_SPDIF: + val.bits.swreset_clk_dtv_spdo = enable; + break; + case DCGU_HW_MODULE_AD: + val.bits.swreset_clkad = enable; + break; + case DCGU_HW_MODULE_MVD: + val.bits.swreset_clkmvd = enable; + break; + case DCGU_HW_MODULE_TSD: + val.bits.swreset_clktsd = enable; + break; + case DCGU_HW_MODULE_TSIO: + val.bits.swreset_clktsio = enable; + break; + case DCGU_HW_MODULE_GA: + val.bits.swreset_clkga = enable; + break; + case DCGU_HW_MODULE_MPC: + val.bits.swreset_clkmpc = enable; + break; + case DCGU_HW_MODULE_CVE: + val.bits.swreset_clkcve = enable; + break; + case DCGU_HW_MODULE_DVP: + val.bits.swreset_clkdvp = enable; + break; + case DCGU_HW_MODULE_MR2: + val.bits.swreset_clkmr2 = enable; + break; + case DCGU_HW_MODULE_MR1: + val.bits.swreset_clkmr1 = enable; + break; + default: + printf("%s:%i:Invalid hardware module: %i\n", __FILE__, + __LINE__, module); + return -EINVAL; + } + reg_write(DCGU_RESET_UNIT1(DCGU_BASE), val.reg); + + return 0; +} |