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https://github.com/brain-hackers/u-boot-brain
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975e4abad2
The bank0 ram size should be the DRAM size minus reserved size, the DRAM size may be 1GB, 2GB, 4GB, we can not hard code it. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Added DECLARE_GLOBAL_DATA_PTR for RK3328, RK3368 and RK3399: Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* Copyright (c) 2016 Rockchip Electronics Co., Ltd
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* Copyright (c) 2016 Andreas Färber
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/armv8/mmu.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/cru_rk3368.h>
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#include <asm/arch/grf_rk3368.h>
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#include <syscon.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define IMEM_BASE 0xFF8C0000
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/* Max MCU's SRAM value is 8K, begin at (IMEM_BASE + 4K) */
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#define MCU_SRAM_BASE (IMEM_BASE + 1024 * 4)
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#define MCU_SRAM_BASE_BIT31_BIT28 ((MCU_SRAM_BASE & GENMASK(31, 28)) >> 28)
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#define MCU_SRAM_BASE_BIT27_BIT12 ((MCU_SRAM_BASE & GENMASK(27, 12)) >> 12)
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/* exsram may using by mcu to accessing dram(0x0-0x20000000) */
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#define MCU_EXSRAM_BASE (0)
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#define MCU_EXSRAM_BASE_BIT31_BIT28 ((MCU_EXSRAM_BASE & GENMASK(31, 28)) >> 28)
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#define MCU_EXSRAM_BASE_BIT27_BIT12 ((MCU_EXSRAM_BASE & GENMASK(27, 12)) >> 12)
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/* experi no used, reserved value = 0 */
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#define MCU_EXPERI_BASE (0)
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#define MCU_EXPERI_BASE_BIT31_BIT28 ((MCU_EXPERI_BASE & GENMASK(31, 28)) >> 28)
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#define MCU_EXPERI_BASE_BIT27_BIT12 ((MCU_EXPERI_BASE & GENMASK(27, 12)) >> 12)
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static struct mm_region rk3368_mem_map[] = {
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{
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.virt = 0x0UL,
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.phys = 0x0UL,
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.size = 0x80000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_INNER_SHARE
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}, {
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.virt = 0xf0000000UL,
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.phys = 0xf0000000UL,
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.size = 0x10000000UL,
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.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
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PTE_BLOCK_NON_SHARE |
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PTE_BLOCK_PXN | PTE_BLOCK_UXN
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}, {
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/* List terminator */
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0,
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}
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};
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struct mm_region *mem_map = rk3368_mem_map;
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int dram_init_banksize(void)
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{
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size_t max_size = min((unsigned long)gd->ram_size, gd->ram_top);
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/* Reserve 0x200000 for ATF bl31 */
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gd->bd->bi_dram[0].start = 0x200000;
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gd->bd->bi_dram[0].size = max_size - gd->bd->bi_dram[0].start;
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return 0;
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}
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#ifdef CONFIG_ARCH_EARLY_INIT_R
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static int mcu_init(void)
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{
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struct rk3368_grf *grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
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struct rk3368_cru *cru = rockchip_get_cru();
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rk_clrsetreg(&grf->soc_con14, MCU_SRAM_BASE_BIT31_BIT28_MASK,
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MCU_SRAM_BASE_BIT31_BIT28 << MCU_SRAM_BASE_BIT31_BIT28_SHIFT);
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rk_clrsetreg(&grf->soc_con11, MCU_SRAM_BASE_BIT27_BIT12_MASK,
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MCU_SRAM_BASE_BIT27_BIT12 << MCU_SRAM_BASE_BIT27_BIT12_SHIFT);
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rk_clrsetreg(&grf->soc_con14, MCU_EXSRAM_BASE_BIT31_BIT28_MASK,
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MCU_EXSRAM_BASE_BIT31_BIT28 << MCU_EXSRAM_BASE_BIT31_BIT28_SHIFT);
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rk_clrsetreg(&grf->soc_con12, MCU_EXSRAM_BASE_BIT27_BIT12_MASK,
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MCU_EXSRAM_BASE_BIT27_BIT12 << MCU_EXSRAM_BASE_BIT27_BIT12_SHIFT);
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rk_clrsetreg(&grf->soc_con14, MCU_EXPERI_BASE_BIT31_BIT28_MASK,
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MCU_EXPERI_BASE_BIT31_BIT28 << MCU_EXPERI_BASE_BIT31_BIT28_SHIFT);
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rk_clrsetreg(&grf->soc_con13, MCU_EXPERI_BASE_BIT27_BIT12_MASK,
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MCU_EXPERI_BASE_BIT27_BIT12 << MCU_EXPERI_BASE_BIT27_BIT12_SHIFT);
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rk_clrsetreg(&cru->clksel_con[12], MCU_PLL_SEL_MASK | MCU_CLK_DIV_MASK,
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(MCU_PLL_SEL_GPLL << MCU_PLL_SEL_SHIFT) |
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(5 << MCU_CLK_DIV_SHIFT));
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/* mcu dereset, for start running */
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rk_clrreg(&cru->softrst_con[1], MCU_PO_SRST_MASK | MCU_SYS_SRST_MASK);
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return 0;
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}
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int arch_early_init_r(void)
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{
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return mcu_init();
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}
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#endif
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