diff options
Diffstat (limited to 'board/imgtec/ci20/ci20.c')
| -rw-r--r-- | board/imgtec/ci20/ci20.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/board/imgtec/ci20/ci20.c b/board/imgtec/ci20/ci20.c new file mode 100644 index 0000000000..9811ef559f --- /dev/null +++ b/board/imgtec/ci20/ci20.c @@ -0,0 +1,362 @@ +// 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 |