393 lines
8.9 KiB
C
393 lines
8.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* Based on da850evm.c. Original Copyrights follow:
|
|
*
|
|
* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
|
|
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <env.h>
|
|
#include <i2c.h>
|
|
#include <init.h>
|
|
#include <net.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/ti-common/davinci_nand.h>
|
|
#include <asm/io.h>
|
|
#include <ns16550.h>
|
|
#include <dm/platdata.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/arch/davinci_misc.h>
|
|
#ifdef CONFIG_MMC_DAVINCI
|
|
#include <mmc.h>
|
|
#include <asm/arch/sdmmc_defs.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
|
|
|
|
#ifdef CONFIG_MMC_DAVINCI
|
|
/* MMC0 pin muxer settings */
|
|
const struct pinmux_config mmc0_pins[] = {
|
|
/* GP0[11] is required for SD to work on Rev 3 EVMs */
|
|
{ pinmux(0), 8, 4 }, /* GP0[11] */
|
|
{ pinmux(10), 2, 0 }, /* MMCSD0_CLK */
|
|
{ pinmux(10), 2, 1 }, /* MMCSD0_CMD */
|
|
{ pinmux(10), 2, 2 }, /* MMCSD0_DAT_0 */
|
|
{ pinmux(10), 2, 3 }, /* MMCSD0_DAT_1 */
|
|
{ pinmux(10), 2, 4 }, /* MMCSD0_DAT_2 */
|
|
{ pinmux(10), 2, 5 }, /* MMCSD0_DAT_3 */
|
|
/* LCDK supports only 4-bit mode, remaining pins are not configured */
|
|
};
|
|
#endif
|
|
|
|
/* UART pin muxer settings */
|
|
static const struct pinmux_config uart_pins[] = {
|
|
{ pinmux(0), 4, 6 },
|
|
{ pinmux(0), 4, 7 },
|
|
{ pinmux(4), 2, 4 },
|
|
{ pinmux(4), 2, 5 }
|
|
};
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC
|
|
static const struct pinmux_config emac_pins[] = {
|
|
{ pinmux(2), 8, 1 },
|
|
{ pinmux(2), 8, 2 },
|
|
{ pinmux(2), 8, 3 },
|
|
{ pinmux(2), 8, 4 },
|
|
{ pinmux(2), 8, 5 },
|
|
{ pinmux(2), 8, 6 },
|
|
{ pinmux(2), 8, 7 },
|
|
{ pinmux(3), 8, 0 },
|
|
{ pinmux(3), 8, 1 },
|
|
{ pinmux(3), 8, 2 },
|
|
{ pinmux(3), 8, 3 },
|
|
{ pinmux(3), 8, 4 },
|
|
{ pinmux(3), 8, 5 },
|
|
{ pinmux(3), 8, 6 },
|
|
{ pinmux(3), 8, 7 },
|
|
{ pinmux(4), 8, 0 },
|
|
{ pinmux(4), 8, 1 }
|
|
};
|
|
#endif /* CONFIG_DRIVER_TI_EMAC */
|
|
|
|
/* I2C pin muxer settings */
|
|
static const struct pinmux_config i2c_pins[] = {
|
|
{ pinmux(4), 2, 2 },
|
|
{ pinmux(4), 2, 3 }
|
|
};
|
|
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
const struct pinmux_config nand_pins[] = {
|
|
{ pinmux(7), 1, 1 },
|
|
{ pinmux(7), 1, 2 },
|
|
{ pinmux(7), 1, 4 },
|
|
{ pinmux(7), 1, 5 },
|
|
{ pinmux(8), 1, 0 },
|
|
{ pinmux(8), 1, 1 },
|
|
{ pinmux(8), 1, 2 },
|
|
{ pinmux(8), 1, 3 },
|
|
{ pinmux(8), 1, 4 },
|
|
{ pinmux(8), 1, 5 },
|
|
{ pinmux(8), 1, 6 },
|
|
{ pinmux(8), 1, 7 },
|
|
{ pinmux(9), 1, 0 },
|
|
{ pinmux(9), 1, 1 },
|
|
{ pinmux(9), 1, 2 },
|
|
{ pinmux(9), 1, 3 },
|
|
{ pinmux(9), 1, 4 },
|
|
{ pinmux(9), 1, 5 },
|
|
{ pinmux(9), 1, 6 },
|
|
{ pinmux(9), 1, 7 },
|
|
{ pinmux(12), 1, 5 },
|
|
{ pinmux(12), 1, 6 }
|
|
};
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
|
|
#define HAS_RMII 1
|
|
#else
|
|
#define HAS_RMII 0
|
|
#endif
|
|
|
|
const struct pinmux_resource pinmuxes[] = {
|
|
PINMUX_ITEM(uart_pins),
|
|
PINMUX_ITEM(i2c_pins),
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
PINMUX_ITEM(nand_pins),
|
|
#endif
|
|
};
|
|
|
|
const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
|
|
|
|
const struct lpsc_resource lpsc[] = {
|
|
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
|
|
{ DAVINCI_LPSC_SPI1 }, /* Serial Flash */
|
|
{ DAVINCI_LPSC_EMAC }, /* image download */
|
|
{ DAVINCI_LPSC_UART2 }, /* console */
|
|
{ DAVINCI_LPSC_GPIO },
|
|
#ifdef CONFIG_MMC_DAVINCI
|
|
{ DAVINCI_LPSC_MMC_SD },
|
|
#endif
|
|
};
|
|
|
|
const int lpsc_size = ARRAY_SIZE(lpsc);
|
|
|
|
#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
|
|
#define CONFIG_DA850_EVM_MAX_CPU_CLK 456000000
|
|
#endif
|
|
|
|
/*
|
|
* get_board_rev() - setup to pass kernel board revision information
|
|
* Returns:
|
|
* bit[0-3] Maximum cpu clock rate supported by onboard SoC
|
|
* 0000b - 300 MHz
|
|
* 0001b - 372 MHz
|
|
* 0010b - 408 MHz
|
|
* 0011b - 456 MHz
|
|
*/
|
|
u32 get_board_rev(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
/*
|
|
* Power on required peripherals
|
|
* ARM does not have access by default to PSC0 and PSC1
|
|
* assuming here that the DSP bootloader has set the IOPU
|
|
* such that PSC access is available to ARM
|
|
*/
|
|
if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
irq_init();
|
|
|
|
/* arch number of the board */
|
|
gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_LCDK;
|
|
|
|
/* address of boot parameters */
|
|
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
|
|
|
|
|
|
/* setup the SUSPSRC for ARM to control emulation suspend */
|
|
writel(readl(&davinci_syscfg_regs->suspsrc) &
|
|
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
|
|
DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
|
|
DAVINCI_SYSCFG_SUSPSRC_UART2),
|
|
&davinci_syscfg_regs->suspsrc);
|
|
|
|
/* configure pinmux settings */
|
|
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
|
|
return 1;
|
|
|
|
#ifdef CONFIG_NAND_DAVINCI
|
|
/*
|
|
* NAND CS setup - cycle counts based on da850evm NAND timings in the
|
|
* Linux kernel @ 25MHz EMIFA
|
|
*/
|
|
writel((DAVINCI_ABCR_WSETUP(15) |
|
|
DAVINCI_ABCR_WSTROBE(63) |
|
|
DAVINCI_ABCR_WHOLD(7) |
|
|
DAVINCI_ABCR_RSETUP(15) |
|
|
DAVINCI_ABCR_RSTROBE(63) |
|
|
DAVINCI_ABCR_RHOLD(7) |
|
|
DAVINCI_ABCR_TA(3) |
|
|
DAVINCI_ABCR_ASIZE_16BIT),
|
|
&davinci_emif_regs->ab2cr); /* CS3 */
|
|
#endif
|
|
|
|
|
|
#ifdef CONFIG_MMC_DAVINCI
|
|
if (davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins)) != 0)
|
|
return 1;
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC
|
|
if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
|
|
return 1;
|
|
davinci_emac_mii_mode_sel(HAS_RMII);
|
|
#endif /* CONFIG_DRIVER_TI_EMAC */
|
|
|
|
/* enable the console UART */
|
|
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
|
|
DAVINCI_UART_PWREMU_MGMT_UTRST),
|
|
&davinci_uart2_ctrl_regs->pwremu_mgmt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define CFG_MAC_ADDR_SPI_BUS 0
|
|
#define CFG_MAC_ADDR_SPI_CS 0
|
|
#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
|
|
#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3
|
|
|
|
#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K)
|
|
|
|
static int get_mac_addr(u8 *addr)
|
|
{
|
|
/* Need to find a way to get MAC ADDRESS */
|
|
return 0;
|
|
}
|
|
|
|
void dsp_lpsc_on(unsigned domain, unsigned int id)
|
|
{
|
|
dv_reg_p mdstat, mdctl, ptstat, ptcmd;
|
|
struct davinci_psc_regs *psc_regs;
|
|
|
|
psc_regs = davinci_psc0_regs;
|
|
mdstat = &psc_regs->psc0.mdstat[id];
|
|
mdctl = &psc_regs->psc0.mdctl[id];
|
|
ptstat = &psc_regs->ptstat;
|
|
ptcmd = &psc_regs->ptcmd;
|
|
|
|
while (*ptstat & (0x1 << domain))
|
|
;
|
|
|
|
if ((*mdstat & 0x1f) == 0x03)
|
|
return; /* Already on and enabled */
|
|
|
|
*mdctl |= 0x03;
|
|
|
|
*ptcmd = 0x1 << domain;
|
|
|
|
while (*ptstat & (0x1 << domain))
|
|
;
|
|
while ((*mdstat & 0x1f) != 0x03)
|
|
; /* Probably an overkill... */
|
|
}
|
|
|
|
static void dspwake(void)
|
|
{
|
|
unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
|
|
|
|
/* if the device is ARM only, return */
|
|
if ((REG(CHIP_REV_ID_REG) & 0x3f) == 0x10)
|
|
return;
|
|
|
|
if (!strcmp(env_get("dspwake"), "no"))
|
|
return;
|
|
|
|
*resetvect++ = 0x1E000; /* DSP Idle */
|
|
/* clear out the next 10 words as NOP */
|
|
memset(resetvect, 0, sizeof(unsigned) * 10);
|
|
|
|
/* setup the DSP reset vector */
|
|
REG(HOST1CFG) = DAVINCI_L3CBARAM_BASE;
|
|
|
|
dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
|
|
REG(PSC0_MDCTL + (15 * 4)) |= 0x100;
|
|
}
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
|
|
/**
|
|
* rmii_hw_init
|
|
*
|
|
*/
|
|
int rmii_hw_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_DRIVER_TI_EMAC_USE_RMII */
|
|
|
|
int misc_init_r(void)
|
|
{
|
|
uint8_t tmp[20], addr[10];
|
|
|
|
|
|
if (env_get("ethaddr") == NULL) {
|
|
/* Read Ethernet MAC address from EEPROM */
|
|
if (dvevm_read_mac_address(addr)) {
|
|
/* Set Ethernet MAC address from EEPROM */
|
|
davinci_sync_env_enetaddr(addr);
|
|
} else {
|
|
get_mac_addr(addr);
|
|
}
|
|
|
|
if (!is_multicast_ethaddr(addr) && !is_zero_ethaddr(addr)) {
|
|
sprintf((char *)tmp, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4],
|
|
addr[5]);
|
|
|
|
env_set("ethaddr", (char *)tmp);
|
|
} else {
|
|
printf("Invalid MAC address read.\n");
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
|
|
/* Select RMII fucntion through the expander */
|
|
if (rmii_hw_init())
|
|
printf("RMII hardware init failed!!!\n");
|
|
#endif
|
|
|
|
dspwake();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if !CONFIG_IS_ENABLED(DM_MMC)
|
|
#ifdef CONFIG_MMC_DAVINCI
|
|
static struct davinci_mmc mmc_sd0 = {
|
|
.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
|
|
.host_caps = MMC_MODE_4BIT, /* DA850 supports only 4-bit SD/MMC */
|
|
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
|
|
};
|
|
|
|
int board_mmc_init(struct bd_info *bis)
|
|
{
|
|
mmc_sd0.input_clk = clk_get(DAVINCI_MMCSD_CLKID);
|
|
|
|
/* Add slot-0 to mmc subsystem */
|
|
return davinci_mmc_init(bis, &mmc_sd0);
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
static const struct ns16550_plat serial_pdata = {
|
|
.base = DAVINCI_UART2_BASE,
|
|
.reg_shift = 2,
|
|
.clock = 228000000,
|
|
.fcr = UART_FCR_DEFVAL,
|
|
};
|
|
|
|
U_BOOT_DRVINFO(omapl138_uart) = {
|
|
.name = "ns16550_serial",
|
|
.plat = &serial_pdata,
|
|
};
|
|
|
|
static const struct davinci_mmc_plat mmc_plat = {
|
|
.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
|
|
.cfg = {
|
|
.f_min = 200000,
|
|
.f_max = 25000000,
|
|
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
|
|
.host_caps = MMC_MODE_4BIT,
|
|
.b_max = DAVINCI_MAX_BLOCKS,
|
|
.name = "da830-mmc",
|
|
},
|
|
};
|
|
U_BOOT_DRVINFO(omapl138_mmc) = {
|
|
.name = "ti_da830_mmc",
|
|
.plat = &mmc_plat,
|
|
};
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
davinci_configure_pin_mux(mmc0_pins, ARRAY_SIZE(mmc0_pins));
|
|
}
|
|
#endif
|