mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-30 15:03:18 +00:00
25c7de2255
Add support for the Creator CI20 platform based on the JZ4780 SoC. Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Marek Vasut <marex@denx.de>
362 lines
9.5 KiB
C
362 lines
9.5 KiB
C
// 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 <environment.h>
|
|
#include <net.h>
|
|
#include <netdev.h>
|
|
#include <asm/io.h>
|
|
#include <asm/gpio.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_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(bd_t *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(bd_t *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
|