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// SPDX-License-Identifier: GPL-2.0+
/*
* CI20 setup code
*
* Copyright (c) 2013 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.com>
*/
#include <common.h>
#include <env.h>
#include <init.h>
#include <net.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <mach/jz4780.h>
#include <mach/jz4780_dram.h>
#include <mach/jz4780_gpio.h>
struct ci20_otp {
u32 serial_number;
u32 date;
u8 manufacturer[2];
u8 mac[6];
} __packed;
static void ci20_mux_mmc(void)
{
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
/* setup MSC1 pins */
writel(0x30f00000, gpio_regs + GPIO_PXINTC(4));
writel(0x30f00000, gpio_regs + GPIO_PXMASKC(4));
writel(0x30f00000, gpio_regs + GPIO_PXPAT1C(4));
writel(0x30f00000, gpio_regs + GPIO_PXPAT0C(4));
writel(0x30f00000, gpio_regs + GPIO_PXPENC(4));
jz4780_clk_ungate_mmc();
}
#ifndef CONFIG_SPL_BUILD
static void ci20_mux_eth(void)
{
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
#ifdef CONFIG_MTD_RAW_NAND
/* setup pins (some already setup for NAND) */
writel(0x04030000, gpio_regs + GPIO_PXINTC(0));
writel(0x04030000, gpio_regs + GPIO_PXMASKC(0));
writel(0x04030000, gpio_regs + GPIO_PXPAT1C(0));
writel(0x04030000, gpio_regs + GPIO_PXPAT0C(0));
writel(0x04030000, gpio_regs + GPIO_PXPENS(0));
#else
/* setup pins (as above +NAND CS +RD/WE +SDx +SAx) */
writel(0x0dff00ff, gpio_regs + GPIO_PXINTC(0));
writel(0x0dff00ff, gpio_regs + GPIO_PXMASKC(0));
writel(0x0dff00ff, gpio_regs + GPIO_PXPAT1C(0));
writel(0x0dff00ff, gpio_regs + GPIO_PXPAT0C(0));
writel(0x0dff00ff, gpio_regs + GPIO_PXPENS(0));
writel(0x00000003, gpio_regs + GPIO_PXINTC(1));
writel(0x00000003, gpio_regs + GPIO_PXMASKC(1));
writel(0x00000003, gpio_regs + GPIO_PXPAT1C(1));
writel(0x00000003, gpio_regs + GPIO_PXPAT0C(1));
writel(0x00000003, gpio_regs + GPIO_PXPENS(1));
#endif
}
static void ci20_mux_jtag(void)
{
#ifdef CONFIG_JTAG
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
/* enable JTAG */
writel(3 << 30, gpio_regs + GPIO_PXINTC(0));
writel(3 << 30, gpio_regs + GPIO_PXMASKC(0));
writel(3 << 30, gpio_regs + GPIO_PXPAT1C(0));
writel(3 << 30, gpio_regs + GPIO_PXPAT0C(0));
#endif
}
static void ci20_mux_nand(void)
{
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
/* setup pins */
writel(0x002c00ff, gpio_regs + GPIO_PXINTC(0));
writel(0x002c00ff, gpio_regs + GPIO_PXMASKC(0));
writel(0x002c00ff, gpio_regs + GPIO_PXPAT1C(0));
writel(0x002c00ff, gpio_regs + GPIO_PXPAT0C(0));
writel(0x002c00ff, gpio_regs + GPIO_PXPENS(0));
writel(0x00000003, gpio_regs + GPIO_PXINTC(1));
writel(0x00000003, gpio_regs + GPIO_PXMASKC(1));
writel(0x00000003, gpio_regs + GPIO_PXPAT1C(1));
writel(0x00000003, gpio_regs + GPIO_PXPAT0C(1));
writel(0x00000003, gpio_regs + GPIO_PXPENS(1));
/* FRB0_N */
jz47xx_gpio_direction_input(JZ_GPIO(0, 20));
writel(20, gpio_regs + GPIO_PXPENS(0));
/* disable write protect */
jz47xx_gpio_direction_output(JZ_GPIO(5, 22), 1);
}
static void ci20_mux_uart(void)
{
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
/* UART0 */
writel(0x9, gpio_regs + GPIO_PXINTC(5));
writel(0x9, gpio_regs + GPIO_PXMASKC(5));
writel(0x9, gpio_regs + GPIO_PXPAT1C(5));
writel(0x9, gpio_regs + GPIO_PXPAT0C(5));
writel(0x9, gpio_regs + GPIO_PXPENC(5));
jz4780_clk_ungate_uart(0);
/* UART 1 and 2 */
jz4780_clk_ungate_uart(1);
jz4780_clk_ungate_uart(2);
#ifndef CONFIG_JTAG
/* UART3 */
writel(1 << 12, gpio_regs + GPIO_PXINTC(3));
writel(1 << 12, gpio_regs + GPIO_PXMASKS(3));
writel(1 << 12, gpio_regs + GPIO_PXPAT1S(3));
writel(1 << 12, gpio_regs + GPIO_PXPAT0C(3));
writel(3 << 30, gpio_regs + GPIO_PXINTC(0));
writel(3 << 30, gpio_regs + GPIO_PXMASKC(0));
writel(3 << 30, gpio_regs + GPIO_PXPAT1C(0));
writel(1 << 30, gpio_regs + GPIO_PXPAT0C(0));
writel(1 << 31, gpio_regs + GPIO_PXPAT0S(0));
jz4780_clk_ungate_uart(3);
#endif
/* UART4 */
writel(0x100400, gpio_regs + GPIO_PXINTC(2));
writel(0x100400, gpio_regs + GPIO_PXMASKC(2));
writel(0x100400, gpio_regs + GPIO_PXPAT1S(2));
writel(0x100400, gpio_regs + GPIO_PXPAT0C(2));
writel(0x100400, gpio_regs + GPIO_PXPENC(2));
jz4780_clk_ungate_uart(4);
}
int board_early_init_f(void)
{
ci20_mux_jtag();
ci20_mux_uart();
ci20_mux_eth();
ci20_mux_mmc();
ci20_mux_nand();
/* SYS_POWER_IND high (LED blue, VBUS off) */
jz47xx_gpio_direction_output(JZ_GPIO(5, 15), 0);
/* LEDs off */
jz47xx_gpio_direction_output(JZ_GPIO(2, 0), 0);
jz47xx_gpio_direction_output(JZ_GPIO(2, 1), 0);
jz47xx_gpio_direction_output(JZ_GPIO(2, 2), 0);
jz47xx_gpio_direction_output(JZ_GPIO(2, 3), 0);
return 0;
}
int misc_init_r(void)
{
const u32 efuse_clk = jz4780_clk_get_efuse_clk();
struct ci20_otp otp;
char manufacturer[3];
/* Read the board OTP data */
jz4780_efuse_init(efuse_clk);
jz4780_efuse_read(0x18, 16, (u8 *)&otp);
/* Set MAC address */
if (!is_valid_ethaddr(otp.mac)) {
/* no MAC assigned, generate one from the unique chip ID */
jz4780_efuse_read(0x8, 4, &otp.mac[0]);
jz4780_efuse_read(0x12, 2, &otp.mac[4]);
otp.mac[0] = (otp.mac[0] | 0x02) & ~0x01;
}
eth_env_set_enetaddr("ethaddr", otp.mac);
/* Put other board information into the environment */
env_set_ulong("serial#", otp.serial_number);
env_set_ulong("board_date", otp.date);
manufacturer[0] = otp.manufacturer[0];
manufacturer[1] = otp.manufacturer[1];
manufacturer[2] = 0;
env_set("board_mfr", manufacturer);
return 0;
}
#ifdef CONFIG_DRIVER_DM9000
int board_eth_init(struct bd_info *bis)
{
/* Enable clock */
jz4780_clk_ungate_ethernet();
/* Enable power (PB25) */
jz47xx_gpio_direction_output(JZ_GPIO(1, 25), 1);
/* Reset (PF12) */
mdelay(10);
jz47xx_gpio_direction_output(JZ_GPIO(5, 12), 0);
mdelay(10);
jz47xx_gpio_direction_output(JZ_GPIO(5, 12), 1);
mdelay(10);
return dm9000_initialize(bis);
}
#endif /* CONFIG_DRIVER_DM9000 */
#endif
static u8 ci20_revision(void)
{
void __iomem *gpio_regs = (void __iomem *)GPIO_BASE;
int val;
jz47xx_gpio_direction_input(JZ_GPIO(2, 18));
jz47xx_gpio_direction_input(JZ_GPIO(2, 19));
/* Enable pullups */
writel(BIT(18) | BIT(19), gpio_regs + GPIO_PXPENC(2));
/* Read PC18/19 for version */
val = (!!jz47xx_gpio_get_value(JZ_GPIO(2, 18))) |
((!!jz47xx_gpio_get_value(JZ_GPIO(2, 19))) << 1);
if (val == 3) /* Rev 1 boards had no pulldowns - giving 3 */
return 1;
if (val == 1) /* Rev 2 boards pulldown port C bit 18 giving 1 */
return 2;
return 0;
}
int dram_init(void)
{
gd->ram_size = sdram_size(0) + sdram_size(1);
return 0;
}
/* U-Boot common routines */
int checkboard(void)
{
printf("Board: Creator CI20 (rev.%d)\n", ci20_revision());
return 0;
}
#ifdef CONFIG_SPL_BUILD
#if defined(CONFIG_SPL_MMC_SUPPORT)
int board_mmc_init(struct bd_info *bd)
{
ci20_mux_mmc();
return jz_mmc_init((void __iomem *)MSC0_BASE);
}
#endif
static const struct jz4780_ddr_config K4B2G0846Q_48_config = {
.timing = {
(4 << DDRC_TIMING1_TRTP_BIT) | (13 << DDRC_TIMING1_TWTR_BIT) |
(6 << DDRC_TIMING1_TWR_BIT) | (5 << DDRC_TIMING1_TWL_BIT),
(4 << DDRC_TIMING2_TCCD_BIT) | (15 << DDRC_TIMING2_TRAS_BIT) |
(6 << DDRC_TIMING2_TRCD_BIT) | (6 << DDRC_TIMING2_TRL_BIT),
(4 << DDRC_TIMING3_ONUM) | (7 << DDRC_TIMING3_TCKSRE_BIT) |
(6 << DDRC_TIMING3_TRP_BIT) | (4 << DDRC_TIMING3_TRRD_BIT) |
(21 << DDRC_TIMING3_TRC_BIT),
(31 << DDRC_TIMING4_TRFC_BIT) | (1 << DDRC_TIMING4_TRWCOV_BIT) |
(4 << DDRC_TIMING4_TCKE_BIT) | (9 << DDRC_TIMING4_TMINSR_BIT) |
(8 << DDRC_TIMING4_TXP_BIT) | (3 << DDRC_TIMING4_TMRD_BIT),
(8 << DDRC_TIMING5_TRTW_BIT) | (4 << DDRC_TIMING5_TRDLAT_BIT) |
(4 << DDRC_TIMING5_TWDLAT_BIT),
(25 << DDRC_TIMING6_TXSRD_BIT) | (12 << DDRC_TIMING6_TFAW_BIT) |
(2 << DDRC_TIMING6_TCFGW_BIT) | (2 << DDRC_TIMING6_TCFGR_BIT),
},
/* PHY */
/* Mode Register 0 */
.mr0 = 0x420,
#ifdef SDRAM_DISABLE_DLL
.mr1 = (DDR3_MR1_DIC_7 | DDR3_MR1_RTT_DIS | DDR3_MR1_DLL_DISABLE),
#else
.mr1 = (DDR3_MR1_DIC_7 | DDR3_MR1_RTT_DIS),
#endif
.ptr0 = 0x002000d4,
.ptr1 = 0x02230d40,
.ptr2 = 0x04013880,
.dtpr0 = 0x2a8f6690,
.dtpr1 = 0x00400860,
.dtpr2 = 0x10042a00,
.pullup = 0x0b,
.pulldn = 0x0b,
};
static const struct jz4780_ddr_config H5TQ2G83CFR_48_config = {
.timing = {
(4 << DDRC_TIMING1_TRTP_BIT) | (13 << DDRC_TIMING1_TWTR_BIT) |
(6 << DDRC_TIMING1_TWR_BIT) | (5 << DDRC_TIMING1_TWL_BIT),
(4 << DDRC_TIMING2_TCCD_BIT) | (16 << DDRC_TIMING2_TRAS_BIT) |
(6 << DDRC_TIMING2_TRCD_BIT) | (6 << DDRC_TIMING2_TRL_BIT),
(4 << DDRC_TIMING3_ONUM) | (7 << DDRC_TIMING3_TCKSRE_BIT) |
(6 << DDRC_TIMING3_TRP_BIT) | (4 << DDRC_TIMING3_TRRD_BIT) |
(22 << DDRC_TIMING3_TRC_BIT),
(42 << DDRC_TIMING4_TRFC_BIT) | (1 << DDRC_TIMING4_TRWCOV_BIT) |
(4 << DDRC_TIMING4_TCKE_BIT) | (7 << DDRC_TIMING4_TMINSR_BIT) |
(3 << DDRC_TIMING4_TXP_BIT) | (3 << DDRC_TIMING4_TMRD_BIT),
(8 << DDRC_TIMING5_TRTW_BIT) | (4 << DDRC_TIMING5_TRDLAT_BIT) |
(4 << DDRC_TIMING5_TWDLAT_BIT),
(25 << DDRC_TIMING6_TXSRD_BIT) | (20 << DDRC_TIMING6_TFAW_BIT) |
(2 << DDRC_TIMING6_TCFGW_BIT) | (2 << DDRC_TIMING6_TCFGR_BIT),
},
/* PHY */
/* Mode Register 0 */
.mr0 = 0x420,
#ifdef SDRAM_DISABLE_DLL
.mr1 = (DDR3_MR1_DIC_7 | DDR3_MR1_RTT_DIS | DDR3_MR1_DLL_DISABLE),
#else
.mr1 = (DDR3_MR1_DIC_7 | DDR3_MR1_RTT_DIS),
#endif
.ptr0 = 0x002000d4,
.ptr1 = 0x02d30d40,
.ptr2 = 0x04013880,
.dtpr0 = 0x2c906690,
.dtpr1 = 0x005608a0,
.dtpr2 = 0x10042a00,
.pullup = 0x0e,
.pulldn = 0x0e,
};
#if (CONFIG_SYS_MHZ != 1200)
#error No DDR configuration for CPU speed
#endif
const struct jz4780_ddr_config *jz4780_get_ddr_config(void)
{
const int board_revision = ci20_revision();
if (board_revision == 2)
return &K4B2G0846Q_48_config;
else /* Fall back to H5TQ2G83CFR RAM */
return &H5TQ2G83CFR_48_config;
}
#endif