diff options
Diffstat (limited to 'board/apollon/apollon.c')
| -rw-r--r-- | board/apollon/apollon.c | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/board/apollon/apollon.c b/board/apollon/apollon.c new file mode 100644 index 0000000..064d143 --- /dev/null +++ b/board/apollon/apollon.c @@ -0,0 +1,472 @@ +/* + * (C) Copyright 2005-2007 + * Samsung Electronics. + * Kyungmin Park <kyungmin.park@samsung.com> + * + * Derived from omap2420 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> +#include <asm/arch/omap2420.h> +#include <asm/io.h> +#include <asm/arch/bits.h> +#include <asm/arch/mux.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> +#include <asm/arch/mem.h> +#include <asm/mach-types.h> + +void wait_for_command_complete(unsigned int wd_base); + +DECLARE_GLOBAL_DATA_PTR; + +#define write_config_reg(reg, value) \ +do { \ + writeb(value, reg); \ +} while (0) + +#define mask_config_reg(reg, mask) \ +do { \ + char value = readb(reg) & ~(mask); \ + writeb(value, reg); \ +} while (0) + +/******************************************************* + * Routine: delay + * Description: spinning delay to use before udelay works + ******************************************************/ +static inline void delay(unsigned long loops) +{ + __asm__("1:\n" "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0"(loops)); +} + +/***************************************** + * Routine: board_init + * Description: Early hardware init. + *****************************************/ +int board_init(void) +{ + gpmc_init(); /* in SRAM or SDRM, finish GPMC */ + + gd->bd->bi_arch_number = 919; + /* adress of boot parameters */ + gd->bd->bi_boot_params = (OMAP2420_SDRC_CS0 + 0x100); + + return 0; +} + +/********************************************************** + * Routine: s_init + * Description: Does early system init of muxing and clocks. + * - Called path is with sram stack. + **********************************************************/ +void s_init(void) +{ + watchdog_init(); + set_muxconf_regs(); + delay(100); + + peripheral_enable(); + icache_enable(); +} + +/******************************************************* + * Routine: misc_init_r + * Description: Init ethernet (done here so udelay works) + ********************************************************/ +int misc_init_r(void) +{ + ether_init(); /* better done here so timers are init'ed */ + return (0); +} + +/**************************************** + * Routine: watchdog_init + * Description: Shut down watch dogs + *****************************************/ +void watchdog_init(void) +{ + /* There are 4 watch dogs. 1 secure, and 3 general purpose. + * The ROM takes care of the secure one. Of the 3 GP ones, + * 1 can reset us directly, the other 2 only generate MPU interrupts. + */ + __raw_writel(WD_UNLOCK1, WD2_BASE + WSPR); + wait_for_command_complete(WD2_BASE); + __raw_writel(WD_UNLOCK2, WD2_BASE + WSPR); + +#define MPU_WD_CLOCKED 1 +#if MPU_WD_CLOCKED + /* value 0x10 stick on aptix, BIT4 polarity seems oppsite */ + __raw_writel(WD_UNLOCK1, WD3_BASE + WSPR); + wait_for_command_complete(WD3_BASE); + __raw_writel(WD_UNLOCK2, WD3_BASE + WSPR); + + __raw_writel(WD_UNLOCK1, WD4_BASE + WSPR); + wait_for_command_complete(WD4_BASE); + __raw_writel(WD_UNLOCK2, WD4_BASE + WSPR); +#endif +} + +/****************************************************** + * Routine: wait_for_command_complete + * Description: Wait for posting to finish on watchdog + ******************************************************/ +void wait_for_command_complete(unsigned int wd_base) +{ + int pending = 1; + do { + pending = __raw_readl(wd_base + WWPS); + } while (pending); +} + +/******************************************************************* + * Routine:ether_init + * Description: take the Ethernet controller out of reset and wait + * for the EEPROM load to complete. + ******************************************************************/ +void ether_init(void) +{ +#ifdef CONFIG_DRIVER_LAN91C96 + int cnt = 20; + + __raw_writeb(0x03, OMAP2420_CTRL_BASE + 0x0f2); /*protect->gpio74 */ + + __raw_writew(0x0, LAN_RESET_REGISTER); + do { + __raw_writew(0x1, LAN_RESET_REGISTER); + udelay(100); + if (cnt == 0) { + printf("1. eth reset err\n"); + goto eth_reset_err_out; + } + --cnt; + } while (__raw_readw(LAN_RESET_REGISTER) != 0x1); + + cnt = 20; + + do { + __raw_writew(0x0, LAN_RESET_REGISTER); + udelay(100); + if (cnt == 0) { + printf("2. eth reset err\n"); + goto eth_reset_err_out; + } + --cnt; + } while (__raw_readw(LAN_RESET_REGISTER) != 0x0000); + udelay(1000); + + mask_config_reg(ETH_CONTROL_REG, 0x01); + udelay(1000); + +eth_reset_err_out: + return; +#endif +} + +/********************************************** + * Routine: dram_init + * Description: sets uboots idea of sdram size + **********************************************/ +int dram_init(void) +{ + unsigned int size0 = 0, size1 = 0; + u32 mtype, btype, rev = 0, cpu = 0; +#define NOT_EARLY 0 + + btype = get_board_type(); + mtype = get_mem_type(); + rev = get_cpu_rev(); + cpu = get_cpu_type(); + + display_board_info(btype); + + if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) { + /* init other chip select */ + do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY); + } + + size0 = get_sdr_cs_size(SDRC_CS0_OSET); + size1 = get_sdr_cs_size(SDRC_CS1_OSET); + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = size0; +#if CONFIG_NR_DRAM_BANKS > 1 + gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + size0; + gd->bd->bi_dram[1].size = size1; +#endif + + return 0; +} + +/********************************************************** + * Routine: set_muxconf_regs + * Description: Setting up the configuration Mux registers + * specific to the hardware + *********************************************************/ +void set_muxconf_regs(void) +{ + muxSetupSDRC(); + muxSetupGPMC(); + muxSetupUsb0(); /* USB Device */ + muxSetupUsbHost(); /* USB Host */ + muxSetupUART1(); + muxSetupLCD(); + muxSetupMMCSD(); + muxSetupTouchScreen(); +} + +/***************************************************************** + * Routine: peripheral_enable + * Description: Enable the clks & power for perifs (GPT2, UART1,...) + ******************************************************************/ +void peripheral_enable(void) +{ + unsigned int v, if_clks = 0, func_clks = 0; + + /* Enable GP2 timer. */ + if_clks |= BIT4 | BIT3; + func_clks |= BIT4 | BIT3; + /* Sys_clk input OMAP2420_GPT2 */ + v = __raw_readl(CM_CLKSEL2_CORE) | 0x4 | 0x2; + __raw_writel(v, CM_CLKSEL2_CORE); + __raw_writel(0x1, CM_CLKSEL_WKUP); + +#ifdef CFG_NS16550 + /* Enable UART1 clock */ + func_clks |= BIT21; + if_clks |= BIT21; +#endif + /* Interface clocks on */ + v = __raw_readl(CM_ICLKEN1_CORE) | if_clks; + __raw_writel(v, CM_ICLKEN1_CORE); + /* Functional Clocks on */ + v = __raw_readl(CM_FCLKEN1_CORE) | func_clks; + __raw_writel(v, CM_FCLKEN1_CORE); + delay(1000); + +#ifndef KERNEL_UPDATED + { +#define V1 0xffffffff +#define V2 0x00000007 + + __raw_writel(V1, CM_FCLKEN1_CORE); + __raw_writel(V2, CM_FCLKEN2_CORE); + __raw_writel(V1, CM_ICLKEN1_CORE); + __raw_writel(V1, CM_ICLKEN2_CORE); + } +#endif +} + +/**************************************** + * Routine: muxSetupUsb0 (ostboot) + * Description: Setup usb muxing + *****************************************/ +void muxSetupUsb0(void) +{ + mask_config_reg(CONTROL_PADCONF_USB0_PUEN, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_VP, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_VM, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_RCV, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_TXEN, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_SE0, 0x1f); + mask_config_reg(CONTROL_PADCONF_USB0_DAT, 0x1f); +} + +/**************************************** + * Routine: muxSetupUSBHost (ostboot) + * Description: Setup USB Host muxing + *****************************************/ +void muxSetupUsbHost(void) +{ + /* V19 */ + write_config_reg(CONTROL_PADCONF_USB1_RCV, 1); + /* W20 */ + write_config_reg(CONTROL_PADCONF_USB1_TXEN, 1); + /* N14 */ + write_config_reg(CONTROL_PADCONF_GPIO69, 3); + /* P15 */ + write_config_reg(CONTROL_PADCONF_GPIO70, 3); + /* L18 */ + write_config_reg(CONTROL_PADCONF_GPIO102, 3); + /* L19 */ + write_config_reg(CONTROL_PADCONF_GPIO103, 3); + /* K15 */ + write_config_reg(CONTROL_PADCONF_GPIO104, 3); + /* K14 */ + write_config_reg(CONTROL_PADCONF_GPIO105, 3); +} + +/**************************************** + * Routine: muxSetupUART1 (ostboot) + * Description: Set up uart1 muxing + *****************************************/ +void muxSetupUART1(void) +{ + /* UART1_CTS pin configuration, PIN = D21, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_UART1_CTS, 0); + /* UART1_RTS pin configuration, PIN = H21, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_UART1_RTS, 0); + /* UART1_TX pin configuration, PIN = L20, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_UART1_TX, 0); + /* UART1_RX pin configuration, PIN = T21, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_UART1_RX, 0); +} + +/**************************************** + * Routine: muxSetupLCD (ostboot) + * Description: Setup lcd muxing + *****************************************/ +void muxSetupLCD(void) +{ + /* LCD_D0 pin configuration, PIN = Y7, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D0, 0); + /* LCD_D1 pin configuration, PIN = P10 , Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D1, 0); + /* LCD_D2 pin configuration, PIN = V8, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D2, 0); + /* LCD_D3 pin configuration, PIN = Y8, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D3, 0); + /* LCD_D4 pin configuration, PIN = W8, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D4, 0); + /* LCD_D5 pin configuration, PIN = R10, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D5, 0); + /* LCD_D6 pin configuration, PIN = Y9, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D6, 0); + /* LCD_D7 pin configuration, PIN = V9, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D7, 0); + /* LCD_D8 pin configuration, PIN = W9, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D8, 0); + /* LCD_D9 pin configuration, PIN = P11, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D9, 0); + /* LCD_D10 pin configuration, PIN = V10, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D10, 0); + /* LCD_D11 pin configuration, PIN = Y10, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D11, 0); + /* LCD_D12 pin configuration, PIN = W10, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D12, 0); + /* LCD_D13 pin configuration, PIN = R11, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D13, 0); + /* LCD_D14 pin configuration, PIN = V11, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D14, 0); + /* LCD_D15 pin configuration, PIN = W11, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D15, 0); + /* LCD_D16 pin configuration, PIN = P12, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D16, 0); + /* LCD_D17 pin configuration, PIN = R12, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_D17, 0); + /* LCD_PCLK pin configuration, PIN = W6, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_PCLK, 0); + /* LCD_VSYNC pin configuration, PIN = V7, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_VSYNC, 0); + /* LCD_HSYNC pin configuration, PIN = Y6, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_HSYNC, 0); + /* LCD_ACBIAS pin configuration, PIN = W7, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_DSS_ACBIAS, 0); +} + +/**************************************** + * Routine: muxSetupMMCSD (ostboot) + * Description: set up MMC muxing + *****************************************/ +void muxSetupMMCSD(void) +{ + /* SDMMC_CLKI pin configuration, PIN = H15, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_CLKI, 0); + /* SDMMC_CLKO pin configuration, PIN = G19, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_CLKO, 0); + /* SDMMC_CMD pin configuration, PIN = H18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_CMD, 0); + /* SDMMC_DAT0 pin configuration, PIN = F20, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT0, 0); + /* SDMMC_DAT1 pin configuration, PIN = H14, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT1, 0); + /* SDMMC_DAT2 pin configuration, PIN = E19, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT2, 0); + /* SDMMC_DAT3 pin configuration, PIN = D19, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT3, 0); + /* SDMMC_DDIR0 pin configuration, PIN = F19, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR0, 0); + /* SDMMC_DDIR1 pin configuration, PIN = E20, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR1, 0); + /* SDMMC_DDIR2 pin configuration, PIN = F18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR2, 0); + /* SDMMC_DDIR3 pin configuration, PIN = E18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR3, 0); + /* SDMMC_CDIR pin configuration, PIN = G18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_MMC_CMD_DIR, 0); +} + +/****************************************** + * Routine: muxSetupTouchScreen (ostboot) + * Description: Set up touch screen muxing + *******************************************/ +void muxSetupTouchScreen(void) +{ + /* SPI1_CLK pin configuration, PIN = U18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_SPI1_CLK, 0); + /* SPI1_MOSI pin configuration, PIN = V20, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_SPI1_SIMO, 0); + /* SPI1_MISO pin configuration, PIN = T18, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_SPI1_SOMI, 0); + /* SPI1_nCS0 pin configuration, PIN = U19, Mode = 0, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_SPI1_NCS0, 0); +#define CONTROL_PADCONF_GPIO85 CONTROL_PADCONF_SPI1_NCS1 + /* PEN_IRQ pin configuration, PIN = N15, Mode = 3, PUPD=Disabled */ + write_config_reg(CONTROL_PADCONF_GPIO85, 3); +} + +/*************************************************************** + * Routine: muxSetupGPMC (ostboot) + * Description: Configures balls which cam up in protected mode + ***************************************************************/ +void muxSetupGPMC(void) +{ + /* gpmc_io_dir, MCR */ + writel(0x4800008C, 0x19000000); + + /* NOR FLASH CS0 */ + /* signal - Gpmc_clk; pin - J4; offset - 0x0088; mode 0; Byte-3 */ + write_config_reg(CONTROL_PADCONF_GPMC_D2_BYTE3, 0); + /* MPDB(Multi Port Debug Port) CS1 */ + /* signal - gpmc_ncs1; pin - N8; offset - 0x008D; mode 0; Byte-1 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE1, 0); + /* signal - Gpmc_ncs2; pin - E2; offset - 0x008E; mode 0; Byte-2 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE2, 0); + /* signal - Gpmc_ncs3; pin - N2; offset - 0x008F; mode 0; Byte-3 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE3, 0); + /* signal - Gpmc_ncs4; pin - ??; offset - 0x0090; mode 0; Byte-4 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE4, 0); + /* signal - Gpmc_ncs5; pin - ??; offset - 0x0091; mode 0; Byte-5 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE5, 0); + /* signal - Gpmc_ncs6; pin - ??; offset - 0x0092; mode 0; Byte-6 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE6, 0); + /* signal - Gpmc_ncs7; pin - ??; offset - 0x0093; mode 0; Byte-7 */ + write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE7, 0); +} + +/**************************************************************** + * Routine: muxSetupSDRC (ostboot) + * Description: Configures balls which come up in protected mode + ****************************************************************/ +void muxSetupSDRC(void) +{ + /* It's set by IPL */ +} |