exynos3250-pmu.c 7.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172
  1. // SPDX-License-Identifier: GPL-2.0
  2. //
  3. // Copyright (c) 2011-2015 Samsung Electronics Co., Ltd.
  4. // http://www.samsung.com/
  5. //
  6. // EXYNOS3250 - CPU PMU (Power Management Unit) support
  7. #include <linux/soc/samsung/exynos-regs-pmu.h>
  8. #include <linux/soc/samsung/exynos-pmu.h>
  9. #include "exynos-pmu.h"
  10. static const struct exynos_pmu_conf exynos3250_pmu_config[] = {
  11. /* { .offset = offset, .val = { AFTR, W-AFTR, SLEEP } */
  12. { EXYNOS3_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
  13. { EXYNOS3_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  14. { EXYNOS3_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  15. { EXYNOS3_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
  16. { EXYNOS3_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  17. { EXYNOS3_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  18. { EXYNOS3_ISP_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  19. { EXYNOS3_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  20. { EXYNOS3_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },
  21. { EXYNOS3_ARM_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x2} },
  22. { EXYNOS3_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x3} },
  23. { EXYNOS3_CMU_ACLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  24. { EXYNOS3_CMU_SCLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  25. { EXYNOS3_CMU_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  26. { EXYNOS3_DRAM_FREQ_DOWN_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  27. { EXYNOS3_DDRPHY_DLLOFF_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  28. { EXYNOS3_LPDDR_PHY_DLL_LOCK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  29. { EXYNOS3_CMU_ACLKSTOP_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  30. { EXYNOS3_CMU_SCLKSTOP_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  31. { EXYNOS3_CMU_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  32. { EXYNOS3_APLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  33. { EXYNOS3_MPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  34. { EXYNOS3_BPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  35. { EXYNOS3_VPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  36. { EXYNOS3_EPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  37. { EXYNOS3_UPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  38. { EXYNOS3_EPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  39. { EXYNOS3_MPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  40. { EXYNOS3_BPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  41. { EXYNOS3_CMU_CLKSTOP_CAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  42. { EXYNOS3_CMU_CLKSTOP_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  43. { EXYNOS3_CMU_CLKSTOP_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  44. { EXYNOS3_CMU_CLKSTOP_LCD0_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  45. { EXYNOS3_CMU_CLKSTOP_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  46. { EXYNOS3_CMU_CLKSTOP_MAUDIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  47. { EXYNOS3_CMU_RESET_CAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  48. { EXYNOS3_CMU_RESET_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  49. { EXYNOS3_CMU_RESET_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  50. { EXYNOS3_CMU_RESET_LCD0_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  51. { EXYNOS3_CMU_RESET_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  52. { EXYNOS3_CMU_RESET_MAUDIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  53. { EXYNOS3_TOP_BUS_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
  54. { EXYNOS3_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  55. { EXYNOS3_TOP_PWR_SYS_PWR_REG, { 0x3, 0x3, 0x3} },
  56. { EXYNOS3_TOP_BUS_COREBLK_SYS_PWR_REG, { 0x3, 0x0, 0x0} },
  57. { EXYNOS3_TOP_RETENTION_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  58. { EXYNOS3_TOP_PWR_COREBLK_SYS_PWR_REG, { 0x3, 0x3, 0x3} },
  59. { EXYNOS3_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  60. { EXYNOS3_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x1, 0x1} },
  61. { EXYNOS3_LOGIC_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  62. { EXYNOS3_OSCCLK_GATE_COREBLK_SYS_PWR_REG, { 0x1, 0x0, 0x1} },
  63. { EXYNOS3_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  64. { EXYNOS3_PAD_RETENTION_MAUDIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  65. { EXYNOS3_PAD_RETENTION_GPIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  66. { EXYNOS3_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  67. { EXYNOS3_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  68. { EXYNOS3_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  69. { EXYNOS3_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  70. { EXYNOS3_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  71. { EXYNOS3_PAD_RETENTION_EBIA_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  72. { EXYNOS3_PAD_RETENTION_EBIB_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  73. { EXYNOS3_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  74. { EXYNOS3_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  75. { EXYNOS3_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  76. { EXYNOS3_XUSBXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  77. { EXYNOS3_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  78. { EXYNOS3_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  79. { EXYNOS3_EXT_REGULATOR_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  80. { EXYNOS3_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  81. { EXYNOS3_GPIO_MODE_MAUDIO_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  82. { EXYNOS3_TOP_ASB_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  83. { EXYNOS3_TOP_ASB_ISOLATION_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  84. { EXYNOS3_TOP_ASB_RESET_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  85. { EXYNOS3_TOP_ASB_ISOLATION_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },
  86. { EXYNOS3_CAM_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  87. { EXYNOS3_MFC_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  88. { EXYNOS3_G3D_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  89. { EXYNOS3_LCD0_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  90. { EXYNOS3_ISP_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  91. { EXYNOS3_MAUDIO_SYS_PWR_REG, { 0x7, 0x0, 0x0} },
  92. { EXYNOS3_CMU_SYSCLK_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} },
  93. { PMU_TABLE_END,},
  94. };
  95. static unsigned int const exynos3250_list_feed[] = {
  96. EXYNOS3_ARM_CORE_OPTION(0),
  97. EXYNOS3_ARM_CORE_OPTION(1),
  98. EXYNOS3_ARM_CORE_OPTION(2),
  99. EXYNOS3_ARM_CORE_OPTION(3),
  100. EXYNOS3_ARM_COMMON_OPTION,
  101. EXYNOS3_TOP_PWR_OPTION,
  102. EXYNOS3_CORE_TOP_PWR_OPTION,
  103. S5P_CAM_OPTION,
  104. S5P_MFC_OPTION,
  105. S5P_G3D_OPTION,
  106. S5P_LCD0_OPTION,
  107. S5P_ISP_OPTION,
  108. };
  109. static void exynos3250_powerdown_conf_extra(enum sys_powerdown mode)
  110. {
  111. unsigned int i;
  112. unsigned int tmp;
  113. /* Enable only SC_FEEDBACK */
  114. for (i = 0; i < ARRAY_SIZE(exynos3250_list_feed); i++) {
  115. tmp = pmu_raw_readl(exynos3250_list_feed[i]);
  116. tmp &= ~(EXYNOS3_OPTION_USE_SC_COUNTER);
  117. tmp |= EXYNOS3_OPTION_USE_SC_FEEDBACK;
  118. pmu_raw_writel(tmp, exynos3250_list_feed[i]);
  119. }
  120. if (mode != SYS_SLEEP)
  121. return;
  122. pmu_raw_writel(XUSBXTI_DURATION, EXYNOS3_XUSBXTI_DURATION);
  123. pmu_raw_writel(XXTI_DURATION, EXYNOS3_XXTI_DURATION);
  124. pmu_raw_writel(EXT_REGULATOR_DURATION, EXYNOS3_EXT_REGULATOR_DURATION);
  125. pmu_raw_writel(EXT_REGULATOR_COREBLK_DURATION,
  126. EXYNOS3_EXT_REGULATOR_COREBLK_DURATION);
  127. }
  128. static void exynos3250_pmu_init(void)
  129. {
  130. unsigned int value;
  131. /*
  132. * To prevent from issuing new bus request form L2 memory system
  133. * If core status is power down, should be set '1' to L2 power down
  134. */
  135. value = pmu_raw_readl(EXYNOS3_ARM_COMMON_OPTION);
  136. value |= EXYNOS3_OPTION_SKIP_DEACTIVATE_ACEACP_IN_PWDN;
  137. pmu_raw_writel(value, EXYNOS3_ARM_COMMON_OPTION);
  138. /* Enable USE_STANDBY_WFI for all CORE */
  139. pmu_raw_writel(S5P_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);
  140. /*
  141. * Set PSHOLD port for output high
  142. */
  143. value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);
  144. value |= S5P_PS_HOLD_OUTPUT_HIGH;
  145. pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);
  146. /*
  147. * Enable signal for PSHOLD port
  148. */
  149. value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);
  150. value |= S5P_PS_HOLD_EN;
  151. pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);
  152. }
  153. const struct exynos_pmu_data exynos3250_pmu_data = {
  154. .pmu_config = exynos3250_pmu_config,
  155. .pmu_init = exynos3250_pmu_init,
  156. .powerdown_conf_extra = exynos3250_powerdown_conf_extra,
  157. };