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/*
* Copyright (c) 2017 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <asm/io.h>
#include <asm/arch/cru_px30.h>
#include <asm/arch/grf_px30.h>
#include <asm/arch/hardware.h>
#include <asm/arch/uart.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_px30.h>
#include <dt-bindings/clock/px30-cru.h>
#define PMU_PWRDN_CON 0xff000018
#define VIDEO_PHY_BASE 0xff2e0000
#define SERVICE_CORE_ADDR 0xff508000
#define QOS_PRIORITY 0x08
#define QOS_PRIORITY_LEVEL(h, l) ((((h) & 3) << 8) | ((l) & 3))
#ifdef CONFIG_ARM64
#include <asm/armv8/mmu.h>
static struct mm_region px30_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,
}
};
/* GRF_GPIO1DL_IOMUX */
enum {
GPIO1D3_SHIFT = 12,
GPIO1D3_MASK = 0xf << GPIO1D3_SHIFT,
GPIO1D3_GPIO = 0,
GPIO1D3_SDMMC_D1,
GPIO1D3_UART2_RXM0,
GPIO1D2_SHIFT = 8,
GPIO1D2_MASK = 0xf << GPIO1D2_SHIFT,
GPIO1D2_GPIO = 0,
GPIO1D2_SDMMC_D0,
GPIO1D2_UART2_TXM0,
};
/* GRF_GPIO1DH_IOMUX */
enum {
GPIO1D7_SHIFT = 12,
GPIO1D7_MASK = 0xf << GPIO1D7_SHIFT,
GPIO1D7_GPIO = 0,
GPIO1D7_SDMMC_CMD,
GPIO1D6_SHIFT = 8,
GPIO1D6_MASK = 0xf << GPIO1D6_SHIFT,
GPIO1D6_GPIO = 0,
GPIO1D6_SDMMC_CLK,
GPIO1D5_SHIFT = 4,
GPIO1D5_MASK = 0xf << GPIO1D5_SHIFT,
GPIO1D5_GPIO = 0,
GPIO1D5_SDMMC_D3,
GPIO1D4_SHIFT = 0,
GPIO1D4_MASK = 0xf << GPIO1D4_SHIFT,
GPIO1D4_GPIO = 0,
GPIO1D4_SDMMC_D2,
};
struct mm_region *mem_map = px30_mem_map;
#endif
#define GRF_BASE 0xff140000
#define CRU_BASE 0xff2b0000
#define DDR_FW_BASE 0xff534000
int arch_cpu_init(void)
{
static struct px30_grf * const grf = (void *)GRF_BASE;
u32 __maybe_unused val;
#ifdef CONFIG_SPL_BUILD
/* We do some SoC one time setting here. */
/* Disable the ddr secure region setting to make it non-secure */
#endif
/* Enable PD_VO (default disable at reset) */
rk_clrreg(PMU_PWRDN_CON, 1 << 13);
#ifdef CONFIG_TPL_BUILD
/* Set cpu qos priority */
writel(QOS_PRIORITY_LEVEL(1, 1), SERVICE_CORE_ADDR + QOS_PRIORITY);
#endif
/* Disable video phy bandgap by default */
writel(0x82, VIDEO_PHY_BASE + 0x0000);
writel(0x05, VIDEO_PHY_BASE + 0x03ac);
/* Clear the force_jtag */
rk_clrreg(&grf->cpu_con[1], 1 << 7);
#ifdef CONFIG_SPL_BUILD
/*
* enable master access to dram - undocumented in the manual but
* should set bits [7:0] to 0.
*/
val = readl(DDR_FW_BASE + 0x24);
val &= 0xffffff00;
writel(val, DDR_FW_BASE + 0x24);
#if !defined(CONFIG_DEBUG_UART_BOARD_INIT) || CONFIG_DEBUG_UART_BASE != 0xff160000
/* fix sdmmc pinmux if not using uart2 as debug uart */
rk_clrsetreg(&grf->gpio1dl_iomux,
GPIO1D3_MASK | GPIO1D2_MASK,
GPIO1D3_SDMMC_D1 << GPIO1D3_SHIFT |
GPIO1D2_SDMMC_D0 << GPIO1D2_SHIFT);
rk_clrsetreg(&grf->gpio1dh_iomux,
GPIO1D7_MASK | GPIO1D6_MASK | GPIO1D5_MASK | GPIO1D4_MASK,
GPIO1D7_SDMMC_CMD << GPIO1D7_SHIFT |
GPIO1D6_SDMMC_CLK << GPIO1D6_SHIFT |
GPIO1D5_SDMMC_D3 << GPIO1D5_SHIFT |
GPIO1D4_SDMMC_D2 << GPIO1D4_SHIFT);
#endif
#endif
return 0;
}
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
static struct px30_grf * const grf = (void *)GRF_BASE;
static struct px30_cru * const cru = (void *)CRU_BASE;
#if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff158000)
/* GRF_GPIO1CL_IOMUX */
enum {
GPIO1C1_SHIFT = 4,
GPIO1C1_MASK = 0xf << GPIO1C1_SHIFT,
GPIO1C1_GPIO = 0,
GPIO1C1_UART1_TX,
GPIO1C0_SHIFT = 0,
GPIO1C0_MASK = 0xf << GPIO1C0_SHIFT,
GPIO1C0_GPIO = 0,
GPIO1C0_UART1_RX,
};
/* uart_sel_clk default select 24MHz */
rk_clrsetreg(&cru->clksel_con[34],
UART1_PLL_SEL_MASK | UART1_DIV_CON_MASK,
UART1_PLL_SEL_24M << UART1_PLL_SEL_SHIFT | 0);
rk_clrsetreg(&cru->clksel_con[35],
UART1_CLK_SEL_MASK,
UART1_CLK_SEL_UART1 << UART1_CLK_SEL_SHIFT);
rk_clrsetreg(&grf->gpio1cl_iomux,
GPIO1C1_MASK | GPIO1C0_MASK,
GPIO1C1_UART1_TX << GPIO1C1_SHIFT |
GPIO1C0_UART1_RX << GPIO1C0_SHIFT);
#elif defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff178000)
/* GRF_GPIO3AL_IOMUX */
enum {
GPIO3A2_SHIFT = 8,
GPIO3A2_MASK = 0xf << GPIO3A2_SHIFT,
GPIO3A2_GPIO = 0,
GPIO3A2_UART5_TX = 4,
GPIO3A1_SHIFT = 4,
GPIO3A1_MASK = 0xf << GPIO3A1_SHIFT,
GPIO3A1_GPIO = 0,
GPIO3A1_UART5_RX = 4,
};
/* uart_sel_clk default select 24MHz */
rk_clrsetreg(&cru->clksel_con[46],
UART5_PLL_SEL_MASK | UART5_DIV_CON_MASK,
UART5_PLL_SEL_24M << UART5_PLL_SEL_SHIFT | 0);
rk_clrsetreg(&cru->clksel_con[47],
UART5_CLK_SEL_MASK,
UART5_CLK_SEL_UART5 << UART5_CLK_SEL_SHIFT);
rk_clrsetreg(&grf->gpio3al_iomux,
GPIO3A2_MASK | GPIO3A1_MASK,
GPIO3A2_UART5_TX << GPIO3A2_SHIFT |
GPIO3A1_UART5_RX << GPIO3A1_SHIFT);
#else
/* GRF_GPIO2BH_IOMUX */
enum {
GPIO2B6_SHIFT = 8,
GPIO2B6_MASK = 0xf << GPIO2B6_SHIFT,
GPIO2B6_GPIO = 0,
GPIO2B6_CIF_D1M0,
GPIO2B6_UART2_RXM1,
GPIO2B4_SHIFT = 0,
GPIO2B4_MASK = 0xf << GPIO2B4_SHIFT,
GPIO2B4_GPIO = 0,
GPIO2B4_CIF_D0M0,
GPIO2B4_UART2_TXM1,
};
/* GRF_IOFUNC_CON0 */
enum {
CON_IOMUX_UART2SEL_SHIFT = 10,
CON_IOMUX_UART2SEL_MASK = 3 << CON_IOMUX_UART2SEL_SHIFT,
CON_IOMUX_UART2SEL_M0 = 0,
CON_IOMUX_UART2SEL_M1,
CON_IOMUX_UART2SEL_USBPHY,
};
//#ifdef CONFIG_TPL_BUILD
/* uart_sel_clk default select 24MHz */
rk_clrsetreg(&cru->clksel_con[37],
UART2_PLL_SEL_MASK | UART2_DIV_CON_MASK,
UART2_PLL_SEL_24M << UART2_PLL_SEL_SHIFT | 0);
rk_clrsetreg(&cru->clksel_con[38],
UART2_CLK_SEL_MASK,
UART2_CLK_SEL_UART2 << UART2_CLK_SEL_SHIFT);
/* Enable early UART2 */
/* rk_clrsetreg(&grf->iofunc_con0,
CON_IOMUX_UART2SEL_MASK,
CON_IOMUX_UART2SEL_M1 << CON_IOMUX_UART2SEL_SHIFT); */
/*
* Set iomux to UART2_M0 and UART2_M1.
* Because uart2_rxm0 and uart2_txm0 are default reset value,
* so only need set uart2_rxm1 and uart2_txm1 here.
*/
rk_clrsetreg(&grf->gpio2bh_iomux,
GPIO2B6_MASK,
GPIO2B6_UART2_RXM1 << GPIO2B6_SHIFT);
rk_clrsetreg(&grf->gpio2bh_iomux,
GPIO2B4_MASK,
GPIO2B4_UART2_TXM1 << GPIO2B4_SHIFT);
//#else
//#ifdef CONFIG_SPL_BUILD
/* Enable early UART2 channel m0 on the px30 */
rk_clrsetreg(&grf->gpio1dl_iomux,
GPIO1D3_MASK | GPIO1D2_MASK,
GPIO1D3_UART2_RXM0 << GPIO1D3_SHIFT |
GPIO1D2_UART2_TXM0 << GPIO1D2_SHIFT);
//#endif
/* Set channel C as UART2 input */
rk_clrsetreg(&grf->iofunc_con0,
CON_IOMUX_UART2SEL_MASK,
CON_IOMUX_UART2SEL_M0 << CON_IOMUX_UART2SEL_SHIFT);
#endif
}
#endif
int mach_addr_is_dmaable(void __iomem *ptr)
{
uintptr_t addr = (uintptr_t)ptr;
/*
* The PX30 cannot cope with high-memory DMA target/sources.
*/
if (addr < 0xf8000000UL) {
return 1;
}
debug("Not DMA-able: 0x%lx\n", addr);
return 0;
}
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