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linux/drivers/soc/samsung/exynos3250-pmu.c
Krzysztof Kozlowski 945005409b soc: samsung: Rename Samsung and Exynos to lowercase 
Fix up inconsistent usage of upper and lowercase letters in "Samsung"
and "Exynos" names.

"SAMSUNG" and "EXYNOS" are not abbreviations but regular trademarked
names.  Therefore they should be written with lowercase letters starting
with capital letter.

The lowercase "Exynos" name is promoted by its manufacturer Samsung
Electronics Co., Ltd., in advertisement materials and on website.

Although advertisement materials usually use uppercase "SAMSUNG", the
lowercase version is used in all legal aspects (e.g. on Wikipedia and in
privacy/legal statements on
https://www.samsung.com/semiconductor/privacy-global/).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-01-07 20:46:31 +01:00

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// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2011-2015 Samsung Electronics Co., Ltd.
// http://www.samsung.com/
//
// Exynos3250 - CPU PMU (Power Management Unit) support
#include <linux/soc/samsung/exynos-regs-pmu.h>
#include <linux/soc/samsung/exynos-pmu.h>
#include "exynos-pmu.h"
static const struct exynos_pmu_conf exynos3250_pmu_config[] = {
/* { .offset = offset, .val = { AFTR, W-AFTR, SLEEP } */
{ EXYNOS3_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
{ EXYNOS3_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
{ EXYNOS3_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_ISP_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
{ EXYNOS3_ARM_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
{ EXYNOS3_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x3} },
{ EXYNOS3_CMU_ACLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_CMU_SCLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_CMU_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_DRAM_FREQ_DOWN_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_DDRPHY_DLLOFF_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_LPDDR_PHY_DLL_LOCK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_CMU_ACLKSTOP_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_SCLKSTOP_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_APLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_MPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_BPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_VPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_EPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_UPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_EPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_MPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_BPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_CAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_LCD0_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_CLKSTOP_MAUDIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_CAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_LCD0_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_CMU_RESET_MAUDIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ EXYNOS3_TOP_BUS_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
{ EXYNOS3_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_TOP_PWR_SYS_PWR_REG, { 0x3, 0x3, 0x3} },
{ EXYNOS3_TOP_BUS_COREBLK_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
{ EXYNOS3_TOP_RETENTION_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_TOP_PWR_COREBLK_SYS_PWR_REG, { 0x3, 0x3, 0x3} },
{ EXYNOS3_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
{ EXYNOS3_LOGIC_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_OSCCLK_GATE_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
{ EXYNOS3_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_MAUDIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_GPIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_EBIA_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_EBIB_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_XUSBXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_EXT_REGULATOR_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_GPIO_MODE_MAUDIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_TOP_ASB_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_TOP_ASB_ISOLATION_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_TOP_ASB_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_TOP_ASB_ISOLATION_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
{ EXYNOS3_CAM_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_MFC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_G3D_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_LCD0_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_ISP_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_MAUDIO_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
{ EXYNOS3_CMU_SYSCLK_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
{ PMU_TABLE_END,},
};
static unsigned int const exynos3250_list_feed[] = {
EXYNOS3_ARM_CORE_OPTION(0),
EXYNOS3_ARM_CORE_OPTION(1),
EXYNOS3_ARM_CORE_OPTION(2),
EXYNOS3_ARM_CORE_OPTION(3),
EXYNOS3_ARM_COMMON_OPTION,
EXYNOS3_TOP_PWR_OPTION,
EXYNOS3_CORE_TOP_PWR_OPTION,
S5P_CAM_OPTION,
S5P_MFC_OPTION,
S5P_G3D_OPTION,
S5P_LCD0_OPTION,
S5P_ISP_OPTION,
};
static void exynos3250_powerdown_conf_extra(enum sys_powerdown mode)
{
unsigned int i;
unsigned int tmp;
/* Enable only SC_FEEDBACK */
for (i = 0; i < ARRAY_SIZE(exynos3250_list_feed); i++) {
tmp = pmu_raw_readl(exynos3250_list_feed[i]);
tmp &= ~(EXYNOS3_OPTION_USE_SC_COUNTER);
tmp |= EXYNOS3_OPTION_USE_SC_FEEDBACK;
pmu_raw_writel(tmp, exynos3250_list_feed[i]);
}
if (mode != SYS_SLEEP)
return;
pmu_raw_writel(XUSBXTI_DURATION, EXYNOS3_XUSBXTI_DURATION);
pmu_raw_writel(XXTI_DURATION, EXYNOS3_XXTI_DURATION);
pmu_raw_writel(EXT_REGULATOR_DURATION, EXYNOS3_EXT_REGULATOR_DURATION);
pmu_raw_writel(EXT_REGULATOR_COREBLK_DURATION,
EXYNOS3_EXT_REGULATOR_COREBLK_DURATION);
}
static void exynos3250_pmu_init(void)
{
unsigned int value;
/*
* To prevent from issuing new bus request form L2 memory system
* If core status is power down, should be set '1' to L2 power down
*/
value = pmu_raw_readl(EXYNOS3_ARM_COMMON_OPTION);
value |= EXYNOS3_OPTION_SKIP_DEACTIVATE_ACEACP_IN_PWDN;
pmu_raw_writel(value, EXYNOS3_ARM_COMMON_OPTION);
/* Enable USE_STANDBY_WFI for all CORE */
pmu_raw_writel(S5P_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);
/*
* Set PSHOLD port for output high
*/
value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);
value |= S5P_PS_HOLD_OUTPUT_HIGH;
pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);
/*
* Enable signal for PSHOLD port
*/
value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);
value |= S5P_PS_HOLD_EN;
pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);
}
const struct exynos_pmu_data exynos3250_pmu_data = {
.pmu_config = exynos3250_pmu_config,
.pmu_init = exynos3250_pmu_init,
.powerdown_conf_extra = exynos3250_powerdown_conf_extra,
};
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