diff options
Diffstat (limited to 'plat/rockchip/rk3368/drivers/soc/soc.c')
| -rw-r--r-- | plat/rockchip/rk3368/drivers/soc/soc.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/plat/rockchip/rk3368/drivers/soc/soc.c b/plat/rockchip/rk3368/drivers/soc/soc.c new file mode 100644 index 00000000..d6979a84 --- /dev/null +++ b/plat/rockchip/rk3368/drivers/soc/soc.c @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch_helpers.h> +#include <debug.h> +#include <mmio.h> +#include <plat_private.h> +#include <platform_def.h> +#include <rk3368_def.h> +#include <soc.h> + +static uint32_t plls_con[END_PLL_ID][4]; + +/* Table of regions to map using the MMU. */ +const mmap_region_t plat_rk_mmap[] = { + MAP_REGION_FLAT(CCI400_BASE, CCI400_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(GIC400_BASE, GIC400_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(STIME_BASE, STIME_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(SGRF_BASE, SGRF_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(PMUSRAM_BASE, PMUSRAM_SIZE, + MT_MEMORY | MT_RW | MT_SECURE), + MAP_REGION_FLAT(PMU_BASE, PMU_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(UART_DBG_BASE, UART_DBG_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(CRU_BASE, CRU_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(DDR_PCTL_BASE, DDR_PCTL_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(DDR_PHY_BASE, DDR_PHY_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(GRF_BASE, GRF_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(SERVICE_BUS_BASE, SERVICE_BUS_SISE, + MT_DEVICE | MT_RW | MT_SECURE), + { 0 } +}; + +/* The RockChip power domain tree descriptor */ +const unsigned char rockchip_power_domain_tree_desc[] = { + /* No of root nodes */ + PLATFORM_SYSTEM_COUNT, + /* No of children for the root node */ + PLATFORM_CLUSTER_COUNT, + /* No of children for the first cluster node */ + PLATFORM_CLUSTER0_CORE_COUNT, + /* No of children for the second cluster node */ + PLATFORM_CLUSTER1_CORE_COUNT +}; + +void secure_timer_init(void) +{ + mmio_write_32(STIMER1_BASE + TIMER_LOADE_COUNT0, 0xffffffff); + mmio_write_32(STIMER1_BASE + TIMER_LOADE_COUNT1, 0xffffffff); + + /* auto reload & enable the timer */ + mmio_write_32(STIMER1_BASE + TIMER_CONTROL_REG, TIMER_EN); +} + +void sgrf_init(void) +{ + /* setting all configurable ip into no-secure */ + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(5), SGRF_SOC_CON_NS); + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(6), SGRF_SOC_CON7_BITS); + mmio_write_32(SGRF_BASE + SGRF_SOC_CON(7), SGRF_SOC_CON_NS); + + /* secure dma to no sesure */ + mmio_write_32(SGRF_BASE + SGRF_BUSDMAC_CON(0), SGRF_BUSDMAC_CON0_NS); + mmio_write_32(SGRF_BASE + SGRF_BUSDMAC_CON(1), SGRF_BUSDMAC_CON1_NS); + dsb(); + + /* rst dma1 */ + mmio_write_32(CRU_BASE + CRU_SOFTRSTS_CON(1), + RST_DMA1_MSK | (RST_DMA1_MSK << 16)); + /* rst dma2 */ + mmio_write_32(CRU_BASE + CRU_SOFTRSTS_CON(4), + RST_DMA2_MSK | (RST_DMA2_MSK << 16)); + + dsb(); + + /* release dma1 rst*/ + mmio_write_32(CRU_BASE + CRU_SOFTRSTS_CON(1), (RST_DMA1_MSK << 16)); + /* release dma2 rst*/ + mmio_write_32(CRU_BASE + CRU_SOFTRSTS_CON(4), (RST_DMA2_MSK << 16)); +} + +void plat_rockchip_soc_init(void) +{ + secure_timer_init(); + sgrf_init(); +} + +void regs_updata_bits(uintptr_t addr, uint32_t val, + uint32_t mask, uint32_t shift) +{ + uint32_t tmp, orig; + + orig = mmio_read_32(addr); + + tmp = orig & ~(mask << shift); + tmp |= (val & mask) << shift; + + if (tmp != orig) + mmio_write_32(addr, tmp); + dsb(); +} + +static void plls_suspend(uint32_t pll_id) +{ + plls_con[pll_id][0] = mmio_read_32(CRU_BASE + PLL_CONS((pll_id), 0)); + plls_con[pll_id][1] = mmio_read_32(CRU_BASE + PLL_CONS((pll_id), 1)); + plls_con[pll_id][2] = mmio_read_32(CRU_BASE + PLL_CONS((pll_id), 2)); + plls_con[pll_id][3] = mmio_read_32(CRU_BASE + PLL_CONS((pll_id), 3)); + + mmio_write_32(CRU_BASE + PLL_CONS((pll_id), 3), PLL_SLOW_BITS); + mmio_write_32(CRU_BASE + PLL_CONS((pll_id), 3), PLL_BYPASS); +} + +static void pm_plls_suspend(void) +{ + plls_suspend(NPLL_ID); + plls_suspend(CPLL_ID); + plls_suspend(GPLL_ID); + plls_suspend(ABPLL_ID); + plls_suspend(ALPLL_ID); +} + +static inline void plls_resume(void) +{ + mmio_write_32(CRU_BASE + PLL_CONS(ABPLL_ID, 3), + plls_con[ABPLL_ID][3] | PLL_BYPASS_W_MSK); + mmio_write_32(CRU_BASE + PLL_CONS(ALPLL_ID, 3), + plls_con[ALPLL_ID][3] | PLL_BYPASS_W_MSK); + mmio_write_32(CRU_BASE + PLL_CONS(GPLL_ID, 3), + plls_con[GPLL_ID][3] | PLL_BYPASS_W_MSK); + mmio_write_32(CRU_BASE + PLL_CONS(CPLL_ID, 3), + plls_con[CPLL_ID][3] | PLL_BYPASS_W_MSK); + mmio_write_32(CRU_BASE + PLL_CONS(NPLL_ID, 3), + plls_con[NPLL_ID][3] | PLL_BYPASS_W_MSK); +} + +void soc_sleep_config(void) +{ + int i = 0; + + for (i = 0; i < CRU_CLKGATES_CON_CNT; i++) + mmio_write_32(CRU_BASE + CRU_CLKGATES_CON(i), 0xffff0000); + pm_plls_suspend(); + + for (i = 0; i < CRU_CLKGATES_CON_CNT; i++) + mmio_write_32(CRU_BASE + CRU_CLKGATES_CON(i), 0xffff0000); +} + +void pm_plls_resume(void) +{ + plls_resume(); + + mmio_write_32(CRU_BASE + PLL_CONS(ABPLL_ID, 3), + plls_con[ABPLL_ID][3] | PLLS_MODE_WMASK); + mmio_write_32(CRU_BASE + PLL_CONS(ALPLL_ID, 3), + plls_con[ALPLL_ID][3] | PLLS_MODE_WMASK); + mmio_write_32(CRU_BASE + PLL_CONS(GPLL_ID, 3), + plls_con[GPLL_ID][3] | PLLS_MODE_WMASK); + mmio_write_32(CRU_BASE + PLL_CONS(CPLL_ID, 3), + plls_con[CPLL_ID][3] | PLLS_MODE_WMASK); + mmio_write_32(CRU_BASE + PLL_CONS(NPLL_ID, 3), + plls_con[NPLL_ID][3] | PLLS_MODE_WMASK); +} + +void __dead2 rockchip_soc_soft_reset(void) +{ + uint32_t temp_val; + + mmio_write_32(CRU_BASE + PLL_CONS((GPLL_ID), 3), PLL_SLOW_BITS); + mmio_write_32(CRU_BASE + PLL_CONS((CPLL_ID), 3), PLL_SLOW_BITS); + mmio_write_32(CRU_BASE + PLL_CONS((NPLL_ID), 3), PLL_SLOW_BITS); + mmio_write_32(CRU_BASE + PLL_CONS((ABPLL_ID), 3), PLL_SLOW_BITS); + mmio_write_32(CRU_BASE + PLL_CONS((ALPLL_ID), 3), PLL_SLOW_BITS); + + temp_val = mmio_read_32(CRU_BASE + CRU_GLB_RST_CON) | + PMU_RST_BY_SECOND_SFT; + + mmio_write_32(CRU_BASE + CRU_GLB_RST_CON, temp_val); + mmio_write_32(CRU_BASE + CRU_GLB_SRST_SND, 0xeca8); + + /* + * Maybe the HW needs some times to reset the system, + * so we do not hope the core to excute valid codes. + */ + while (1) + ; +} |