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// SPDX-License-Identifier: GPL-2.0+
/*
*Copyright (c) 2018 Rockchip Electronics Co., Ltd
*/
#include <init.h>
#include <asm/armv8/mmu.h>
#include <asm/arch-rockchip/bootrom.h>
#include <asm/arch-rockchip/grf_rk3308.h>
#include <asm/arch-rockchip/hardware.h>
#include <linux/bitops.h>
static struct mm_region rk3308_mem_map[] = {
{
.virt = 0x0UL,
.phys = 0x0UL,
.size = 0xff000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
.virt = 0xff000000UL,
.phys = 0xff000000UL,
.size = 0x01000000UL,
.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 = rk3308_mem_map;
#define GRF_BASE 0xff000000
#define SGRF_BASE 0xff2b0000
enum {
GPIO4D3_SHIFT = 6,
GPIO4D3_MASK = GENMASK(7, 6),
GPIO4D3_GPIO = 0,
GPIO4D3_SDMMC_D3,
GPIO4D3_UART2_TX_M1,
GPIO4D2_SHIFT = 4,
GPIO4D2_MASK = GENMASK(5, 4),
GPIO4D2_GPIO = 0,
GPIO4D2_SDMMC_D2,
GPIO4D2_UART2_RX_M1,
UART2_IO_SEL_SHIFT = 2,
UART2_IO_SEL_MASK = GENMASK(3, 2),
UART2_IO_SEL_M0 = 0,
UART2_IO_SEL_M1,
UART2_IO_SEL_USB,
GPIO2C0_SEL_SRC_CTRL_SHIFT = 11,
GPIO2C0_SEL_SRC_CTRL_MASK = BIT(11),
GPIO2C0_SEL_SRC_CTRL_IOMUX = 0,
GPIO2C0_SEL_SRC_CTRL_SEL_PLUS,
GPIO3B3_SEL_SRC_CTRL_SHIFT = 7,
GPIO3B3_SEL_SRC_CTRL_MASK = BIT(7),
GPIO3B3_SEL_SRC_CTRL_IOMUX = 0,
GPIO3B3_SEL_SRC_CTRL_SEL_PLUS,
GPIO3B3_SEL_PLUS_SHIFT = 4,
GPIO3B3_SEL_PLUS_MASK = GENMASK(6, 4),
GPIO3B3_SEL_PLUS_GPIO3_B3 = 0,
GPIO3B3_SEL_PLUS_FLASH_ALE,
GPIO3B3_SEL_PLUS_EMMC_PWREN,
GPIO3B3_SEL_PLUS_SPI1_CLK,
GPIO3B3_SEL_PLUS_LCDC_D23_M1,
GPIO3B2_SEL_SRC_CTRL_SHIFT = 3,
GPIO3B2_SEL_SRC_CTRL_MASK = BIT(3),
GPIO3B2_SEL_SRC_CTRL_IOMUX = 0,
GPIO3B2_SEL_SRC_CTRL_SEL_PLUS,
GPIO3B2_SEL_PLUS_SHIFT = 0,
GPIO3B2_SEL_PLUS_MASK = GENMASK(2, 0),
GPIO3B2_SEL_PLUS_GPIO3_B2 = 0,
GPIO3B2_SEL_PLUS_FLASH_RDN,
GPIO3B2_SEL_PLUS_EMMC_RSTN,
GPIO3B2_SEL_PLUS_SPI1_MISO,
GPIO3B2_SEL_PLUS_LCDC_D22_M1,
I2C3_IOFUNC_SRC_CTRL_SHIFT = 10,
I2C3_IOFUNC_SRC_CTRL_MASK = BIT(10),
I2C3_IOFUNC_SRC_CTRL_SEL_PLUS = 1,
GPIO2A3_SEL_SRC_CTRL_SHIFT = 7,
GPIO2A3_SEL_SRC_CTRL_MASK = BIT(7),
GPIO2A3_SEL_SRC_CTRL_SEL_PLUS = 1,
GPIO2A2_SEL_SRC_CTRL_SHIFT = 3,
GPIO2A2_SEL_SRC_CTRL_MASK = BIT(3),
GPIO2A2_SEL_SRC_CTRL_SEL_PLUS = 1,
};
const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
[BROM_BOOTSOURCE_EMMC] = "/mmc@ff490000",
[BROM_BOOTSOURCE_SPINOR] = "/spi@ff4c0000/flash@0",
[BROM_BOOTSOURCE_SD] = "/mmc@ff480000",
};
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
__weak void board_debug_uart_init(void)
{
static struct rk3308_grf * const grf = (void *)GRF_BASE;
/* Enable early UART2 channel m1 on the rk3308 */
rk_clrsetreg(&grf->soc_con5, UART2_IO_SEL_MASK,
UART2_IO_SEL_M1 << UART2_IO_SEL_SHIFT);
rk_clrsetreg(&grf->gpio4d_iomux,
GPIO4D3_MASK | GPIO4D2_MASK,
GPIO4D2_UART2_RX_M1 << GPIO4D2_SHIFT |
GPIO4D3_UART2_TX_M1 << GPIO4D3_SHIFT);
}
#endif
#if defined(CONFIG_XPL_BUILD)
int arch_cpu_init(void)
{
static struct rk3308_sgrf * const sgrf = (void *)SGRF_BASE;
static struct rk3308_grf * const grf = (void *)GRF_BASE;
/* Set CRYPTO SDMMC EMMC NAND SFC USB master bus to be secure access */
rk_clrreg(&sgrf->con_secure0, 0x2b83);
/*
* Enable plus options to use more pinctrl functions, including
* GPIO2A2_PLUS, GPIO2A3_PLUS and I2C3_MULTI_SRC_PLUS.
*/
rk_clrsetreg(&grf->soc_con13,
I2C3_IOFUNC_SRC_CTRL_MASK | GPIO2A3_SEL_SRC_CTRL_MASK |
GPIO2A2_SEL_SRC_CTRL_MASK,
I2C3_IOFUNC_SRC_CTRL_SEL_PLUS << I2C3_IOFUNC_SRC_CTRL_SHIFT |
GPIO2A3_SEL_SRC_CTRL_SEL_PLUS << GPIO2A3_SEL_SRC_CTRL_SHIFT |
GPIO2A2_SEL_SRC_CTRL_SEL_PLUS << GPIO2A2_SEL_SRC_CTRL_SHIFT);
/* Plus options about GPIO3B2_PLUS, GPIO3B3_PLUS and GPIO2C0_PLUS. */
rk_clrsetreg(&grf->soc_con15,
GPIO2C0_SEL_SRC_CTRL_MASK | GPIO3B3_SEL_SRC_CTRL_MASK |
GPIO3B2_SEL_SRC_CTRL_MASK,
GPIO2C0_SEL_SRC_CTRL_SEL_PLUS << GPIO2C0_SEL_SRC_CTRL_SHIFT |
GPIO3B3_SEL_SRC_CTRL_SEL_PLUS << GPIO3B3_SEL_SRC_CTRL_SHIFT |
GPIO3B2_SEL_SRC_CTRL_SEL_PLUS << GPIO3B2_SEL_SRC_CTRL_SHIFT);
return 0;
}
#endif
#define RK3308_GRF_CHIP_ID 0xFF000800
int checkboard(void)
{
u32 chip_id = readl(RK3308_GRF_CHIP_ID);
if (chip_id == 0x3308)
printf("SoC: RK3308B\n");
else if (chip_id == 0x3308c)
printf("SoC: RK3308B-S\n");
else
printf("SoC: RK3308\n");
return 0;
}
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