--- /dev/null
+/*
+ * Copyright (C) ST-Ericsson SA 2009
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <i2c.h>
+#include <asm/types.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/prcmu.h>
+#ifdef CONFIG_MMC
+#include "../../../drivers/mmc/arm_pl180_mmci.h"
+#endif
+
+#define NOMADIK_PER4_BASE (0x80150000)
+#define NOMADIK_BACKUPRAM0_BASE (NOMADIK_PER4_BASE + 0x00000)
+#define NOMADIK_BACKUPRAM1_BASE (NOMADIK_PER4_BASE + 0x01000)
+
+/* Power, Reset, Clock Management Unit */
+/*
+ * SVA: Smart Video Accelerator
+ * SIA: Smart Imaging Accelerator
+ * SGA: Smart Graphic accelerator
+ * B2R2: Graphic blitter
+ */
+#define PRCM_ARMCLKFIX_MGT_REG (PRCMU_BASE + 0x000)
+#define PRCM_ACLK_MGT_REG (PRCMU_BASE + 0x004)
+#define PRCM_SVAMMDSPCLK_MGT_REG (PRCMU_BASE + 0x008)
+#define PRCM_SIAMMDSPCLK_MGT_REG (PRCMU_BASE + 0x00C)
+#define PRCM_SAAMMDSPCLK_MGT_REG (PRCMU_BASE + 0x010)
+#define PRCM_SGACLK_MGT_REG (PRCMU_BASE + 0x014)
+#define PRCM_UARTCLK_MGT_REG (PRCMU_BASE + 0x018)
+#define PRCM_MSPCLK_MGT_REG (PRCMU_BASE + 0x01C)
+#define PRCM_I2CCLK_MGT_REG (PRCMU_BASE + 0x020)
+#define PRCM_SDMMCCLK_MGT_REG (PRCMU_BASE + 0x024)
+#define PRCM_SLIMCLK_MGT_REG (PRCMU_BASE + 0x028)
+#define PRCM_PER1CLK_MGT_REG (PRCMU_BASE + 0x02C)
+#define PRCM_PER2CLK_MGT_REG (PRCMU_BASE + 0x030)
+#define PRCM_PER3CLK_MGT_REG (PRCMU_BASE + 0x034)
+#define PRCM_PER5CLK_MGT_REG (PRCMU_BASE + 0x038)
+#define PRCM_PER6CLK_MGT_REG (PRCMU_BASE + 0x03C)
+#define PRCM_PER7CLK_MGT_REG (PRCMU_BASE + 0x040)
+#define PRCM_DMACLK_MGT_REG (PRCMU_BASE + 0x074)
+#define PRCM_B2R2CLK_MGT_REG (PRCMU_BASE + 0x078)
+
+#define PRCM_PLLSOC0_FREQ_REG (PRCMU_BASE + 0x080)
+#define PRCM_PLLSOC1_FREQ_REG (PRCMU_BASE + 0x084)
+#define PRCM_PLLARM_FREQ_REG (PRCMU_BASE + 0x088)
+#define PRCM_PLLDDR_FREQ_REG (PRCMU_BASE + 0x08C)
+#define PRCM_ARM_CHGCLKREQ_REG (PRCMU_BASE + 0x114)
+
+#define PRCM_TCR (PRCMU_BASE + 0x1C8)
+
+/*
+ * Memory controller register
+ */
+#define DMC_BASE_ADDR 0x80156000
+#define DMC_CTL_97 (DMC_BASE_ADDR + 0x184)
+
+int board_id; /* set in board_late_init() */
+
+/* PLLs for clock management registers */
+enum {
+ GATED = 0,
+ PLLSOC0, /* pllsw = 001, ffs() = 1 */
+ PLLSOC1, /* pllsw = 010, ffs() = 2 */
+ PLLDDR, /* pllsw = 100, ffs() = 3 */
+ PLLARM,
+};
+
+static struct pll_freq_regs {
+ int idx; /* index fror pll_name and pll_khz arrays */
+ uint32_t addr;
+} pll_freq_regs[] = {
+ {PLLSOC0, PRCM_PLLSOC0_FREQ_REG},
+ {PLLSOC1, PRCM_PLLSOC1_FREQ_REG},
+ {PLLDDR, PRCM_PLLDDR_FREQ_REG},
+ {PLLARM, PRCM_PLLARM_FREQ_REG},
+ {0, 0},
+};
+
+static const char *pll_name[5] = {"GATED", "SOC0", "SOC1", "DDR", "ARM"};
+static uint32_t pll_khz[5]; /* use ffs(pllsw(reg)) as index for 0..3 */
+
+static struct clk_mgt_regs {
+ uint32_t addr;
+ uint32_t val;
+ const char *descr;
+} clk_mgt_regs[] = {
+ /* register content taken from bootrom settings */
+ {PRCM_ARMCLKFIX_MGT_REG, 0x0120, "ARMCLKFIX"}, /* ena, SOC0/0, ??? */
+ {PRCM_ACLK_MGT_REG, 0x0125, "ACLK"}, /* ena, SOC0/5, 160 MHz */
+ {PRCM_SVAMMDSPCLK_MGT_REG, 0x1122, "SVA"}, /* ena, SOC0/2, 400 MHz */
+ {PRCM_SIAMMDSPCLK_MGT_REG, 0x0022, "SIA"}, /* dis, SOC0/2, 400 MHz */
+ {PRCM_SAAMMDSPCLK_MGT_REG, 0x0822, "SAA"}, /* dis, SOC0/4, 200 MHz */
+ {PRCM_SGACLK_MGT_REG, 0x0024, "SGA"}, /* dis, SOC0/4, 200 MHz */
+ {PRCM_UARTCLK_MGT_REG, 0x0300, "UART"}, /* ena, GATED, CLK38 */
+ {PRCM_MSPCLK_MGT_REG, 0x0200, "MSP"}, /* dis, GATED, CLK38 */
+ {PRCM_I2CCLK_MGT_REG, 0x0130, "I2C"}, /* ena, SOC0/16, 50 MHz */
+ {PRCM_SDMMCCLK_MGT_REG, 0x0130, "SDMMC"}, /* ena, SOC0/16, 50 MHz */
+ {PRCM_PER1CLK_MGT_REG, 0x126, "PER1"}, /* ena, SOC0/6, 133 MHz */
+ {PRCM_PER2CLK_MGT_REG, 0x126, "PER2"}, /* ena, SOC0/6, 133 MHz */
+ {PRCM_PER3CLK_MGT_REG, 0x126, "PER3"}, /* ena, SOC0/6, 133 MHz */
+ {PRCM_PER5CLK_MGT_REG, 0x126, "PER5"}, /* ena, SOC0/6, 133 MHz */
+ {PRCM_PER6CLK_MGT_REG, 0x126, "PER6"}, /* ena, SOC0/6, 133 MHz */
+ {PRCM_PER7CLK_MGT_REG, 0x128, "PER7"}, /* ena, SOC0/8, 100 MHz */
+ {PRCM_DMACLK_MGT_REG, 0x125, "DMA"}, /* ena, SOC0/5, 160 MHz */
+ {PRCM_B2R2CLK_MGT_REG, 0x025, "B2R2"}, /* dis, SOC0/5, 160 MHz */
+ {0, 0, NULL},
+};
+
+static void init_regs(void);
+
+DECLARE_GLOBAL_DATA_PTR;
+#if defined(CONFIG_SHOW_BOOT_PROGRESS)
+void show_boot_progress(int progress)
+{
+ printf("Boot reached stage %d\n", progress);
+}
+#endif
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_early_init_f(void)
+{
+ init_regs();
+ return 0;
+}
+
+int board_init(void)
+{
+ uint32_t unused_cols_rows;
+ unsigned int nrows;
+ unsigned int ncols;
+
+ gd->bd->bi_arch_number = 0x1A4;
+ gd->bd->bi_boot_params = 0x00000100;
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+
+ /*
+ * Assumption: 2 CS active, both CS have same layout.
+ * 15 rows max, 11 cols max (controller spec).
+ * memory chip has 8 banks, I/O width 32 bit.
+ * The correct way would be to read MR#8: I/O width and density,
+ * but this requires locking against the PRCMU firmware.
+ * Simplified approach:
+ * Read number of unused rows and columns from mem controller.
+ * size = nCS x 2^(rows+cols) x nbanks x buswidth_bytes
+ */
+ unused_cols_rows = readl(DMC_CTL_97);
+ nrows = 15 - (unused_cols_rows & 0x07);
+ ncols = 11 - ((unused_cols_rows & 0x0700) >> 8);
+ gd->bd->bi_dram[0].size = 2 * (1 << (nrows + ncols)) * 8 * 4;
+
+ icache_enable();
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ gd->ram_size = PHYS_SDRAM_SIZE_1;
+
+ return 0;
+}
+
+unsigned int addr_vall_arr[] = {
+ 0x8011F000, 0x0000FFFF, /* Clocks for HSI TODO: Enable reqd only */
+ 0x8011F008, 0x00001CFF, /* Clocks for HSI TODO: Enable reqd only */
+ 0x8000F000, 0x00007FFF, /* Clocks for I2C TODO: Enable reqd only */
+ 0x8000F008, 0x00007FFF, /* Clocks for I2C TODO: Enable reqd only */
+ 0x80157020, 0x00000150, /* I2C 48MHz clock */
+ 0x8012F000, 0x00007FFF, /* Clocks for SD TODO: Enable reqd only */
+ 0x8012F008, 0x00007FFF, /* Clocks for SD TODO: Enable reqd only */
+ 0xA03DF000, 0x0000000D, /* Clock for MTU Timers */
+ 0x8011E00C, 0x00000000, /* GPIO ALT FUNC for EMMC */
+ 0x8011E004, 0x0000FFE0, /* GPIO ALT FUNC for EMMC */
+ 0x8011E020, 0x0000FFE0, /* GPIO ALT FUNC for EMMC */
+ 0x8011E024, 0x00000000, /* GPIO ALT FUNC for EMMC */
+ 0x8012E000, 0x20000000, /* GPIO ALT FUNC for UART */
+ 0x8012E00C, 0x00000000, /* GPIO ALT FUNC for SD */
+ 0x8012E004, 0x0FFC0000, /* GPIO ALT FUNC for SD */
+ 0x8012E020, 0x60000000, /* GPIO ALT FUNC for SD */
+ 0x8012E024, 0x60000000, /* GPIO ALT FUNC for SD */
+ 0x801571E4, 0x0000000C, /* PRCMU settings for B2R2,
+ PRCM_APE_RESETN_SET_REG */
+ 0x80157024, 0x00000130, /* PRCMU settings for EMMC/SD */
+ 0xA03FF000, 0x00000003, /* USB */
+ 0xA03FF008, 0x00000001, /* USB */
+ 0xA03FE00C, 0x00000000, /* USB */
+ 0xA03FE020, 0x00000FFF, /* USB */
+ 0xA03FE024, 0x00000000 /* USB */
+};
+
+#ifdef CONFIG_BOARD_LATE_INIT
+/*
+ * called after all initialisation were done, but before the generic
+ * mmc_initialize().
+ */
+int board_late_init(void)
+{
+ uchar byte;
+
+ /*
+ * Determine and set board_id environment variable
+ * 0: mop500, 1: href500
+ * Above boards have different GPIO expander chips which we can
+ * distinguish by the chip id.
+ *
+ * The board_id environment variable is needed for the Linux bootargs.
+ */
+ (void) i2c_set_bus_num(0);
+ (void) i2c_read(CONFIG_SYS_I2C_GPIOE_ADDR, 0x80, 1, &byte, 1);
+ if (byte == 0x01) {
+ board_id = 0;
+ setenv("board_id", "0");
+ } else {
+ board_id = 1;
+ setenv("board_id", "1");
+ }
+#ifdef CONFIG_MMC
+ u8500_mmc_power_init();
+
+ /*
+ * config extended GPIO pins for level shifter and
+ * SDMMC_ENABLE
+ */
+ if (board_id == 0) {
+ /* MOP500 */
+ byte = 0x0c;
+ (void) i2c_write(CONFIG_SYS_I2C_GPIOE_ADDR, 0x89, 1, &byte, 1);
+ (void) i2c_write(CONFIG_SYS_I2C_GPIOE_ADDR, 0x83, 1, &byte, 1);
+ } else {
+ /* HREF */
+ /* set the direction of GPIO KPY9 and KPY10 */
+ byte = 0x06;
+ (void) i2c_write(CONFIG_SYS_I2C_GPIOE_ADDR, 0xC8, 1, &byte, 1);
+ /* must be a multibyte access */
+ (void) i2c_write(CONFIG_SYS_I2C_GPIOE_ADDR, 0xC4, 1,
+ (uchar []) {0x06, 0x06}, 2);
+ }
+#endif /* CONFIG_MMC */
+ /*
+ * Create a memargs variable which points uses either the memargs256 or
+ * memargs512 environment variable, depending on the memory size.
+ * memargs is used to build the bootargs, memargs256 and memargs512 are
+ * stored in the environment.
+ */
+ if (gd->bd->bi_dram[0].size == 0x10000000) {
+ setenv("memargs", "setenv bootargs ${bootargs} ${memargs256}");
+ setenv("mem", "256M");
+ } else {
+ setenv("memargs", "setenv bootargs ${bootargs} ${memargs512}");
+ setenv("mem", "512M");
+ }
+
+ return 0;
+}
+#endif /* CONFIG_BOARD_LATE_INIT */
+
+static void early_gpio_setup(struct gpio_register *gpio_reg, u32 bits)
+{
+ writel(readl(&gpio_reg->gpio_dats) | bits, &gpio_reg->gpio_dats);
+ writel(readl(&gpio_reg->gpio_pdis) & ~bits, &gpio_reg->gpio_pdis);
+}
+
+static void init_regs(void)
+{
+ /* FIXME Remove magic register array settings for ED also */
+ struct prcmu *prcmu = (struct prcmu *) U8500_PRCMU_BASE;
+
+ /* Enable timers */
+ writel(1 << 17, &prcmu->tcr);
+
+ u8500_prcmu_enable(&prcmu->per1clk_mgt);
+ u8500_prcmu_enable(&prcmu->per2clk_mgt);
+ u8500_prcmu_enable(&prcmu->per3clk_mgt);
+ u8500_prcmu_enable(&prcmu->per5clk_mgt);
+ u8500_prcmu_enable(&prcmu->per6clk_mgt);
+ u8500_prcmu_enable(&prcmu->per7clk_mgt);
+
+ u8500_prcmu_enable(&prcmu->uartclk_mgt);
+ u8500_prcmu_enable(&prcmu->i2cclk_mgt);
+
+ u8500_prcmu_enable(&prcmu->sdmmcclk_mgt);
+
+ u8500_clock_enable(1, 9, -1); /* GPIO0 */
+
+ u8500_clock_enable(2, 11, -1); /* GPIO1 */
+
+ u8500_clock_enable(3, 8, -1); /* GPIO2 */
+ u8500_clock_enable(5, 1, -1); /* GPIO3 */
+
+ u8500_clock_enable(3, 6, 6); /* UART2 */
+
+ gpio_altfuncenable(GPIO_ALT_I2C_0, "I2C0");
+ u8500_clock_enable(3, 3, 3); /* I2C0 */
+
+ early_gpio_setup((struct gpio_register *)U8500_GPIO_0_BASE, 0x60000000);
+ gpio_altfuncenable(GPIO_ALT_UART_2, "UART2");
+
+ early_gpio_setup((struct gpio_register *)U8500_GPIO_6_BASE, 0x0000ffe0);
+ gpio_altfuncenable(GPIO_ALT_EMMC, "EMMC");
+
+ early_gpio_setup((struct gpio_register *)U8500_GPIO_0_BASE, 0x0000ffe0);
+ gpio_altfuncenable(GPIO_ALT_SD_CARD0, "SDCARD");
+
+ u8500_clock_enable(1, 5, 5); /* SDI0 */
+ u8500_clock_enable(2, 4, 2); /* SDI4 */
+
+ u8500_clock_enable(6, 7, -1); /* MTU0 */
+ u8500_clock_enable(3, 4, 4); /* SDI2 */
+
+ early_gpio_setup((struct gpio_register *)U8500_GPIO_4_BASE, 0x000007ff);
+ gpio_altfuncenable(GPIO_ALT_POP_EMMC, "EMMC");
+
+ /*
+ * Enabling clocks for all devices which are AMBA devices in the
+ * kernel. Otherwise they will not get probe()'d because the
+ * peripheral ID register will not be powered.
+ */
+
+ /* XXX: some of these differ between ED/V1 */
+
+ u8500_clock_enable(1, 1, 1); /* UART1 */
+ u8500_clock_enable(1, 0, 0); /* UART0 */
+
+ u8500_clock_enable(3, 2, 2); /* SSP1 */
+ u8500_clock_enable(3, 1, 1); /* SSP0 */
+
+ u8500_clock_enable(2, 8, -1); /* SPI0 */
+ u8500_clock_enable(2, 5, 3); /* MSP2 */
+}
+
+#ifdef CONFIG_MMC
+static int u8500_mmci_board_init(void)
+{
+ enum gpio_error error;
+ struct gpio_register *gpio_base_address;
+
+ gpio_base_address = (void *)(U8500_GPIO_0_BASE);
+ gpio_base_address->gpio_dats |= 0xFFC0000;
+ gpio_base_address->gpio_pdis &= ~0xFFC0000;
+
+ /* save the GPIO0 AFSELA register */
+ error = gpio_altfuncenable(GPIO_ALT_SD_CARD0, "MMC");
+ if (error != GPIO_OK) {
+ printf("u8500_mmci_board_init() gpio_altfuncenable failed\n");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+int board_mmc_init(bd_t *bd)
+{
+ struct pl180_mmc_host *host;
+
+ if (u8500_mmci_board_init())
+ return -ENODEV;
+
+ host = malloc(sizeof(struct pl180_mmc_host));
+ if (!host)
+ return -ENOMEM;
+ memset(host, 0, sizeof(*host));
+
+ strcpy(host->name, "MMC");
+ host->base = (struct sdi_registers *)CONFIG_ARM_PL180_MMCI_BASE;
+ host->pwr_init = INIT_PWR;
+ host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V1 | SDI_CLKCR_CLKEN;
+ host->voltages = VOLTAGE_WINDOW_MMC;
+ host->caps = 0;
+ host->clock_in = ARM_MCLK;
+ host->clock_min = ARM_MCLK / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
+ host->clock_max = CONFIG_ARM_PL180_MMCI_CLOCK_FREQ;
+
+ return arm_pl180_mmci_init(host);
+}
+#endif
+
+
+/*
+ * get_pll_freq_khz - return PLL frequency in kHz
+ */
+static uint32_t get_pll_freq_khz(uint32_t inclk_khz, uint32_t freq_reg)
+{
+ uint32_t idf, ldf, odf, seldiv, phi;
+
+ /*
+ * PLLOUTCLK = PHI = (INCLK*LDF)/(2*ODF*IDF) if SELDIV2=0
+ * PLLOUTCLK = PHI = (INCLK*LDF)/(4*ODF*IDF) if SELDIV2=1
+ * where:
+ * IDF=R(2:0) (when R=000, IDF=1d)
+ * LDF = 2*D(7:0) (D must be greater than or equal to 6)
+ * ODF = N(5:0) (when N=000000, 0DF=1d)
+ */
+
+ idf = (freq_reg & 0x70000) >> 16;
+ ldf = (freq_reg & 0xff) * 2;
+ odf = (freq_reg & 0x3f00) >> 8;
+ seldiv = (freq_reg & 0x01000000) >> 24;
+ phi = (inclk_khz * ldf) / (2 * odf * idf);
+ if (seldiv)
+ phi = phi/2;
+
+ return phi;
+}
+
+int do_clkinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ uint32_t inclk_khz;
+ uint32_t reg, phi;
+ uint32_t clk_khz;
+ unsigned int clk_sel;
+ struct clk_mgt_regs *clks = clk_mgt_regs;
+ struct pll_freq_regs *plls = pll_freq_regs;
+
+ /*
+ * Go through list of PLLs.
+ * Initialise pll out frequency array (pll_khz) and print frequency.
+ */
+ inclk_khz = 38400; /* 38.4 MHz */
+ while (plls->addr) {
+ reg = readl(plls->addr);
+ phi = get_pll_freq_khz(inclk_khz, reg);
+ pll_khz[plls->idx] = phi;
+ printf("%s PLL out frequency: %d.%d Mhz\n",
+ pll_name[plls->idx], phi/1000, phi % 1000);
+ plls++;
+ }
+
+ /* check ARM clock source */
+ reg = readl(PRCM_ARM_CHGCLKREQ_REG);
+ printf("A9 running on %s\n",
+ (reg & 1) ? "external clock" : "ARM PLL");
+
+ /* go through list of clk_mgt_reg */
+ printf("\n%19s %9s %7s %9s enabled\n",
+ "name(addr)", "value", "PLL", "CLK[MHz]");
+ while (clks->addr) {
+ reg = readl(clks->addr);
+
+ /* convert bit position into array index */
+ clk_sel = ffs((reg >> 5) & 0x7); /* PLLSW[2:0] */
+
+ if (reg & 0x200)
+ clk_khz = 38400; /* CLK38 is set */
+ else if ((reg & 0x1f) == 0)
+ /* ARMCLKFIX_MGT is 0x120, e.g. div = 0 ! */
+ clk_khz = 0;
+ else
+ clk_khz = pll_khz[clk_sel] / (reg & 0x1f);
+
+ printf("%9s(%08x): %08x, %6s, %4d.%03d, %s\n",
+ clks->descr, clks->addr, reg, pll_name[clk_sel],
+ clk_khz / 1000, clk_khz % 1000,
+ (reg & 0x100) ? "ena" : "dis");
+ clks++;
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ clkinfo, 1, 1, do_clkinfo,
+ "print clock info",
+ ""
+);
Code Review / kvmfornfv.git / blobdiff