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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2016 Rockchip Electronics Co., Ltd
*/
#include <common.h>
#include <spl_gpio.h>
#include <asm/armv8/mmu.h>
#include <asm/io.h>
#include <asm/arch-rockchip/gpio.h>
#include <asm/arch-rockchip/grf_rk3399.h>
#include <asm/arch-rockchip/hardware.h>
DECLARE_GLOBAL_DATA_PTR;
#define GRF_EMMCCORE_CON11 0xff77f02c
#define GRF_BASE 0xff770000
static struct mm_region rk3399_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0xf8000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0xf8000000UL,
.phys = 0xf8000000UL,
.size = 0x08000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = rk3399_mem_map;
int dram_init_banksize(void)
{
size_t max_size = min((unsigned long)gd->ram_size, gd->ram_top);
/* Reserve 0x200000 for ATF bl31 */
gd->bd->bi_dram[0].start = 0x200000;
gd->bd->bi_dram[0].size = max_size - gd->bd->bi_dram[0].start;
return 0;
}
int arch_cpu_init(void)
{
/* We do some SoC one time setting here. */
struct rk3399_grf_regs * const grf = (void *)GRF_BASE;
/* Emmc clock generator: disable the clock multipilier */
rk_clrreg(&grf->emmccore_con[11], 0x0ff);
return 0;
}
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
#define GRF_BASE 0xff770000
#define GPIO0_BASE 0xff720000
#define PMUGRF_BASE 0xff320000
struct rk3399_grf_regs * const grf = (void *)GRF_BASE;
#ifdef CONFIG_TARGET_CHROMEBOOK_BOB
struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE;
struct rockchip_gpio_regs * const gpio = (void *)GPIO0_BASE;
#endif
#if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff180000)
/* Enable early UART0 on the RK3399 */
rk_clrsetreg(&grf->gpio2c_iomux,
GRF_GPIO2C0_SEL_MASK,
GRF_UART0BT_SIN << GRF_GPIO2C0_SEL_SHIFT);
rk_clrsetreg(&grf->gpio2c_iomux,
GRF_GPIO2C1_SEL_MASK,
GRF_UART0BT_SOUT << GRF_GPIO2C1_SEL_SHIFT);
#else
# ifdef CONFIG_TARGET_CHROMEBOOK_BOB
rk_setreg(&grf->io_vsel, 1 << 0);
/*
* Let's enable these power rails here, we are already running the SPI
* Flash based code.
*/
spl_gpio_output(gpio, GPIO(BANK_B, 2), 1); /* PP1500_EN */
spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_B, 2), GPIO_PULL_NORMAL);
spl_gpio_output(gpio, GPIO(BANK_B, 4), 1); /* PP3000_EN */
spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_B, 4), GPIO_PULL_NORMAL);
#endif /* CONFIG_TARGET_CHROMEBOOK_BOB */
/* Enable early UART2 channel C on the RK3399 */
rk_clrsetreg(&grf->gpio4c_iomux,
GRF_GPIO4C3_SEL_MASK,
GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT);
rk_clrsetreg(&grf->gpio4c_iomux,
GRF_GPIO4C4_SEL_MASK,
GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT);
/* Set channel C as UART2 input */
rk_clrsetreg(&grf->soc_con7,
GRF_UART_DBG_SEL_MASK,
GRF_UART_DBG_SEL_C << GRF_UART_DBG_SEL_SHIFT);
#endif
}
#endif
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