--- /dev/null
+/*
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/* This code should work for both the S3C2400 and the S3C2410
+ * as they seem to have the same I2C controller inside.
+ * The different address mapping is handled by the s3c24xx.h files below.
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#if (defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+#include <asm/arch/clk.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/pinmux.h>
+#else
+#include <asm/arch/s3c24x0_cpu.h>
+#endif
+#include <asm/io.h>
+#include <i2c.h>
+#include "s3c24x0_i2c.h"
+
+#define I2C_WRITE 0
+#define I2C_READ 1
+
+#define I2C_OK 0
+#define I2C_NOK 1
+#define I2C_NACK 2
+#define I2C_NOK_LA 3 /* Lost arbitration */
+#define I2C_NOK_TOUT 4 /* time out */
+
+/* HSI2C specific register description */
+
+/* I2C_CTL Register bits */
+#define HSI2C_FUNC_MODE_I2C (1u << 0)
+#define HSI2C_MASTER (1u << 3)
+#define HSI2C_RXCHON (1u << 6) /* Write/Send */
+#define HSI2C_TXCHON (1u << 7) /* Read/Receive */
+#define HSI2C_SW_RST (1u << 31)
+
+/* I2C_FIFO_CTL Register bits */
+#define HSI2C_RXFIFO_EN (1u << 0)
+#define HSI2C_TXFIFO_EN (1u << 1)
+#define HSI2C_TXFIFO_TRIGGER_LEVEL (0x20 << 16)
+#define HSI2C_RXFIFO_TRIGGER_LEVEL (0x20 << 4)
+
+/* I2C_TRAILING_CTL Register bits */
+#define HSI2C_TRAILING_COUNT (0xff)
+
+/* I2C_INT_EN Register bits */
+#define HSI2C_TX_UNDERRUN_EN (1u << 2)
+#define HSI2C_TX_OVERRUN_EN (1u << 3)
+#define HSI2C_RX_UNDERRUN_EN (1u << 4)
+#define HSI2C_RX_OVERRUN_EN (1u << 5)
+#define HSI2C_INT_TRAILING_EN (1u << 6)
+#define HSI2C_INT_I2C_EN (1u << 9)
+
+#define HSI2C_INT_ERROR_MASK (HSI2C_TX_UNDERRUN_EN |\
+ HSI2C_TX_OVERRUN_EN |\
+ HSI2C_RX_UNDERRUN_EN |\
+ HSI2C_RX_OVERRUN_EN |\
+ HSI2C_INT_TRAILING_EN)
+
+/* I2C_CONF Register bits */
+#define HSI2C_AUTO_MODE (1u << 31)
+#define HSI2C_10BIT_ADDR_MODE (1u << 30)
+#define HSI2C_HS_MODE (1u << 29)
+
+/* I2C_AUTO_CONF Register bits */
+#define HSI2C_READ_WRITE (1u << 16)
+#define HSI2C_STOP_AFTER_TRANS (1u << 17)
+#define HSI2C_MASTER_RUN (1u << 31)
+
+/* I2C_TIMEOUT Register bits */
+#define HSI2C_TIMEOUT_EN (1u << 31)
+
+/* I2C_TRANS_STATUS register bits */
+#define HSI2C_MASTER_BUSY (1u << 17)
+#define HSI2C_SLAVE_BUSY (1u << 16)
+#define HSI2C_TIMEOUT_AUTO (1u << 4)
+#define HSI2C_NO_DEV (1u << 3)
+#define HSI2C_NO_DEV_ACK (1u << 2)
+#define HSI2C_TRANS_ABORT (1u << 1)
+#define HSI2C_TRANS_SUCCESS (1u << 0)
+#define HSI2C_TRANS_ERROR_MASK (HSI2C_TIMEOUT_AUTO |\
+ HSI2C_NO_DEV | HSI2C_NO_DEV_ACK |\
+ HSI2C_TRANS_ABORT)
+#define HSI2C_TRANS_FINISHED_MASK (HSI2C_TRANS_ERROR_MASK | HSI2C_TRANS_SUCCESS)
+
+
+/* I2C_FIFO_STAT Register bits */
+#define HSI2C_RX_FIFO_EMPTY (1u << 24)
+#define HSI2C_RX_FIFO_FULL (1u << 23)
+#define HSI2C_TX_FIFO_EMPTY (1u << 8)
+#define HSI2C_TX_FIFO_FULL (1u << 7)
+#define HSI2C_RX_FIFO_LEVEL(x) (((x) >> 16) & 0x7f)
+#define HSI2C_TX_FIFO_LEVEL(x) ((x) & 0x7f)
+
+#define HSI2C_SLV_ADDR_MAS(x) ((x & 0x3ff) << 10)
+
+/* S3C I2C Controller bits */
+#define I2CSTAT_BSY 0x20 /* Busy bit */
+#define I2CSTAT_NACK 0x01 /* Nack bit */
+#define I2CCON_ACKGEN 0x80 /* Acknowledge generation */
+#define I2CCON_IRPND 0x10 /* Interrupt pending bit */
+#define I2C_MODE_MT 0xC0 /* Master Transmit Mode */
+#define I2C_MODE_MR 0x80 /* Master Receive Mode */
+#define I2C_START_STOP 0x20 /* START / STOP */
+#define I2C_TXRX_ENA 0x10 /* I2C Tx/Rx enable */
+
+#define I2C_TIMEOUT_MS 1000 /* 1 second */
+
+#define HSI2C_TIMEOUT_US 100000 /* 100 ms, finer granularity */
+
+
+/* To support VCMA9 boards and other who dont define max_i2c_num */
+#ifndef CONFIG_MAX_I2C_NUM
+#define CONFIG_MAX_I2C_NUM 1
+#endif
+
+/*
+ * For SPL boot some boards need i2c before SDRAM is initialised so force
+ * variables to live in SRAM
+ */
+static struct s3c24x0_i2c_bus i2c_bus[CONFIG_MAX_I2C_NUM]
+ __attribute__((section(".data")));
+
+/**
+ * Get a pointer to the given bus index
+ *
+ * @bus_idx: Bus index to look up
+ * @return pointer to bus, or NULL if invalid or not available
+ */
+static struct s3c24x0_i2c_bus *get_bus(unsigned int bus_idx)
+{
+ if (bus_idx < ARRAY_SIZE(i2c_bus)) {
+ struct s3c24x0_i2c_bus *bus;
+
+ bus = &i2c_bus[bus_idx];
+ if (bus->active)
+ return bus;
+ }
+
+ debug("Undefined bus: %d\n", bus_idx);
+ return NULL;
+}
+
+#if !(defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+static int GetI2CSDA(void)
+{
+ struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
+
+#ifdef CONFIG_S3C2410
+ return (readl(&gpio->gpedat) & 0x8000) >> 15;
+#endif
+#ifdef CONFIG_S3C2400
+ return (readl(&gpio->pgdat) & 0x0020) >> 5;
+#endif
+}
+
+static void SetI2CSCL(int x)
+{
+ struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
+
+#ifdef CONFIG_S3C2410
+ writel((readl(&gpio->gpedat) & ~0x4000) |
+ (x & 1) << 14, &gpio->gpedat);
+#endif
+#ifdef CONFIG_S3C2400
+ writel((readl(&gpio->pgdat) & ~0x0040) | (x & 1) << 6, &gpio->pgdat);
+#endif
+}
+#endif
+
+/*
+ * Wait til the byte transfer is completed.
+ *
+ * @param i2c- pointer to the appropriate i2c register bank.
+ * @return I2C_OK, if transmission was ACKED
+ * I2C_NACK, if transmission was NACKED
+ * I2C_NOK_TIMEOUT, if transaction did not complete in I2C_TIMEOUT_MS
+ */
+
+static int WaitForXfer(struct s3c24x0_i2c *i2c)
+{
+ ulong start_time = get_timer(0);
+
+ do {
+ if (readl(&i2c->iiccon) & I2CCON_IRPND)
+ return (readl(&i2c->iicstat) & I2CSTAT_NACK) ?
+ I2C_NACK : I2C_OK;
+ } while (get_timer(start_time) < I2C_TIMEOUT_MS);
+
+ return I2C_NOK_TOUT;
+}
+
+/*
+ * Wait for transfer completion.
+ *
+ * This function reads the interrupt status register waiting for the INT_I2C
+ * bit to be set, which indicates copletion of a transaction.
+ *
+ * @param i2c: pointer to the appropriate register bank
+ *
+ * @return: I2C_OK in case of successful completion, I2C_NOK_TIMEOUT in case
+ * the status bits do not get set in time, or an approrpiate error
+ * value in case of transfer errors.
+ */
+static int hsi2c_wait_for_trx(struct exynos5_hsi2c *i2c)
+{
+ int i = HSI2C_TIMEOUT_US;
+
+ while (i-- > 0) {
+ u32 int_status = readl(&i2c->usi_int_stat);
+
+ if (int_status & HSI2C_INT_I2C_EN) {
+ u32 trans_status = readl(&i2c->usi_trans_status);
+
+ /* Deassert pending interrupt. */
+ writel(int_status, &i2c->usi_int_stat);
+
+ if (trans_status & HSI2C_NO_DEV_ACK) {
+ debug("%s: no ACK from device\n", __func__);
+ return I2C_NACK;
+ }
+ if (trans_status & HSI2C_NO_DEV) {
+ debug("%s: no device\n", __func__);
+ return I2C_NOK;
+ }
+ if (trans_status & HSI2C_TRANS_ABORT) {
+ debug("%s: arbitration lost\n", __func__);
+ return I2C_NOK_LA;
+ }
+ if (trans_status & HSI2C_TIMEOUT_AUTO) {
+ debug("%s: device timed out\n", __func__);
+ return I2C_NOK_TOUT;
+ }
+ return I2C_OK;
+ }
+ udelay(1);
+ }
+ debug("%s: transaction timeout!\n", __func__);
+ return I2C_NOK_TOUT;
+}
+
+static void ReadWriteByte(struct s3c24x0_i2c *i2c)
+{
+ writel(readl(&i2c->iiccon) & ~I2CCON_IRPND, &i2c->iiccon);
+}
+
+static struct s3c24x0_i2c *get_base_i2c(int bus)
+{
+#ifdef CONFIG_EXYNOS4
+ struct s3c24x0_i2c *i2c = (struct s3c24x0_i2c *)(samsung_get_base_i2c()
+ + (EXYNOS4_I2C_SPACING
+ * bus));
+ return i2c;
+#elif defined CONFIG_EXYNOS5
+ struct s3c24x0_i2c *i2c = (struct s3c24x0_i2c *)(samsung_get_base_i2c()
+ + (EXYNOS5_I2C_SPACING
+ * bus));
+ return i2c;
+#else
+ return s3c24x0_get_base_i2c();
+#endif
+}
+
+static void i2c_ch_init(struct s3c24x0_i2c *i2c, int speed, int slaveadd)
+{
+ ulong freq, pres = 16, div;
+#if (defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+ freq = get_i2c_clk();
+#else
+ freq = get_PCLK();
+#endif
+ /* calculate prescaler and divisor values */
+ if ((freq / pres / (16 + 1)) > speed)
+ /* set prescaler to 512 */
+ pres = 512;
+
+ div = 0;
+ while ((freq / pres / (div + 1)) > speed)
+ div++;
+
+ /* set prescaler, divisor according to freq, also set ACKGEN, IRQ */
+ writel((div & 0x0F) | 0xA0 | ((pres == 512) ? 0x40 : 0), &i2c->iiccon);
+
+ /* init to SLAVE REVEIVE and set slaveaddr */
+ writel(0, &i2c->iicstat);
+ writel(slaveadd, &i2c->iicadd);
+ /* program Master Transmit (and implicit STOP) */
+ writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->iicstat);
+}
+
+static int hsi2c_get_clk_details(struct s3c24x0_i2c_bus *i2c_bus)
+{
+ struct exynos5_hsi2c *hsregs = i2c_bus->hsregs;
+ ulong clkin;
+ unsigned int op_clk = i2c_bus->clock_frequency;
+ unsigned int i = 0, utemp0 = 0, utemp1 = 0;
+ unsigned int t_ftl_cycle;
+
+#if (defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+ clkin = get_i2c_clk();
+#else
+ clkin = get_PCLK();
+#endif
+ /* FPCLK / FI2C =
+ * (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2) + 8 + 2 * FLT_CYCLE
+ * uTemp0 = (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2)
+ * uTemp1 = (TSCLK_L + TSCLK_H + 2)
+ * uTemp2 = TSCLK_L + TSCLK_H
+ */
+ t_ftl_cycle = (readl(&hsregs->usi_conf) >> 16) & 0x7;
+ utemp0 = (clkin / op_clk) - 8 - 2 * t_ftl_cycle;
+
+ /* CLK_DIV max is 256 */
+ for (i = 0; i < 256; i++) {
+ utemp1 = utemp0 / (i + 1);
+ if ((utemp1 < 512) && (utemp1 > 4)) {
+ i2c_bus->clk_cycle = utemp1 - 2;
+ i2c_bus->clk_div = i;
+ return 0;
+ }
+ }
+ return -1;
+}
+
+static void hsi2c_ch_init(struct s3c24x0_i2c_bus *i2c_bus)
+{
+ struct exynos5_hsi2c *hsregs = i2c_bus->hsregs;
+ unsigned int t_sr_release;
+ unsigned int n_clkdiv;
+ unsigned int t_start_su, t_start_hd;
+ unsigned int t_stop_su;
+ unsigned int t_data_su, t_data_hd;
+ unsigned int t_scl_l, t_scl_h;
+ u32 i2c_timing_s1;
+ u32 i2c_timing_s2;
+ u32 i2c_timing_s3;
+ u32 i2c_timing_sla;
+
+ n_clkdiv = i2c_bus->clk_div;
+ t_scl_l = i2c_bus->clk_cycle / 2;
+ t_scl_h = i2c_bus->clk_cycle / 2;
+ t_start_su = t_scl_l;
+ t_start_hd = t_scl_l;
+ t_stop_su = t_scl_l;
+ t_data_su = t_scl_l / 2;
+ t_data_hd = t_scl_l / 2;
+ t_sr_release = i2c_bus->clk_cycle;
+
+ i2c_timing_s1 = t_start_su << 24 | t_start_hd << 16 | t_stop_su << 8;
+ i2c_timing_s2 = t_data_su << 24 | t_scl_l << 8 | t_scl_h << 0;
+ i2c_timing_s3 = n_clkdiv << 16 | t_sr_release << 0;
+ i2c_timing_sla = t_data_hd << 0;
+
+ writel(HSI2C_TRAILING_COUNT, &hsregs->usi_trailing_ctl);
+
+ /* Clear to enable Timeout */
+ clrsetbits_le32(&hsregs->usi_timeout, HSI2C_TIMEOUT_EN, 0);
+
+ /* set AUTO mode */
+ writel(readl(&hsregs->usi_conf) | HSI2C_AUTO_MODE, &hsregs->usi_conf);
+
+ /* Enable completion conditions' reporting. */
+ writel(HSI2C_INT_I2C_EN, &hsregs->usi_int_en);
+
+ /* Enable FIFOs */
+ writel(HSI2C_RXFIFO_EN | HSI2C_TXFIFO_EN, &hsregs->usi_fifo_ctl);
+
+ /* Currently operating in Fast speed mode. */
+ writel(i2c_timing_s1, &hsregs->usi_timing_fs1);
+ writel(i2c_timing_s2, &hsregs->usi_timing_fs2);
+ writel(i2c_timing_s3, &hsregs->usi_timing_fs3);
+ writel(i2c_timing_sla, &hsregs->usi_timing_sla);
+}
+
+/* SW reset for the high speed bus */
+static void exynos5_i2c_reset(struct s3c24x0_i2c_bus *i2c_bus)
+{
+ struct exynos5_hsi2c *i2c = i2c_bus->hsregs;
+ u32 i2c_ctl;
+
+ /* Set and clear the bit for reset */
+ i2c_ctl = readl(&i2c->usi_ctl);
+ i2c_ctl |= HSI2C_SW_RST;
+ writel(i2c_ctl, &i2c->usi_ctl);
+
+ i2c_ctl = readl(&i2c->usi_ctl);
+ i2c_ctl &= ~HSI2C_SW_RST;
+ writel(i2c_ctl, &i2c->usi_ctl);
+
+ /* Initialize the configure registers */
+ hsi2c_ch_init(i2c_bus);
+}
+
+static void s3c24x0_i2c_init(struct i2c_adapter *adap, int speed, int slaveadd)
+{
+ struct s3c24x0_i2c *i2c;
+ struct s3c24x0_i2c_bus *bus;
+
+#if !(defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+ struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio();
+#endif
+ ulong start_time = get_timer(0);
+
+ /* By default i2c channel 0 is the current bus */
+ i2c = get_base_i2c(adap->hwadapnr);
+
+ /*
+ * In case the previous transfer is still going, wait to give it a
+ * chance to finish.
+ */
+ while (readl(&i2c->iicstat) & I2CSTAT_BSY) {
+ if (get_timer(start_time) > I2C_TIMEOUT_MS) {
+ printf("%s: I2C bus busy for %p\n", __func__,
+ &i2c->iicstat);
+ return;
+ }
+ }
+
+#if !(defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5)
+ int i;
+
+ if ((readl(&i2c->iicstat) & I2CSTAT_BSY) || GetI2CSDA() == 0) {
+#ifdef CONFIG_S3C2410
+ ulong old_gpecon = readl(&gpio->gpecon);
+#endif
+#ifdef CONFIG_S3C2400
+ ulong old_gpecon = readl(&gpio->pgcon);
+#endif
+ /* bus still busy probably by (most) previously interrupted
+ transfer */
+
+#ifdef CONFIG_S3C2410
+ /* set I2CSDA and I2CSCL (GPE15, GPE14) to GPIO */
+ writel((readl(&gpio->gpecon) & ~0xF0000000) | 0x10000000,
+ &gpio->gpecon);
+#endif
+#ifdef CONFIG_S3C2400
+ /* set I2CSDA and I2CSCL (PG5, PG6) to GPIO */
+ writel((readl(&gpio->pgcon) & ~0x00003c00) | 0x00001000,
+ &gpio->pgcon);
+#endif
+
+ /* toggle I2CSCL until bus idle */
+ SetI2CSCL(0);
+ udelay(1000);
+ i = 10;
+ while ((i > 0) && (GetI2CSDA() != 1)) {
+ SetI2CSCL(1);
+ udelay(1000);
+ SetI2CSCL(0);
+ udelay(1000);
+ i--;
+ }
+ SetI2CSCL(1);
+ udelay(1000);
+
+ /* restore pin functions */
+#ifdef CONFIG_S3C2410
+ writel(old_gpecon, &gpio->gpecon);
+#endif
+#ifdef CONFIG_S3C2400
+ writel(old_gpecon, &gpio->pgcon);
+#endif
+ }
+#endif /* #if !(defined CONFIG_EXYNOS4 || defined CONFIG_EXYNOS5) */
+ i2c_ch_init(i2c, speed, slaveadd);
+
+ bus = &i2c_bus[adap->hwadapnr];
+ bus->active = true;
+ bus->regs = i2c;
+}
+
+/*
+ * Poll the appropriate bit of the fifo status register until the interface is
+ * ready to process the next byte or timeout expires.
+ *
+ * In addition to the FIFO status register this function also polls the
+ * interrupt status register to be able to detect unexpected transaction
+ * completion.
+ *
+ * When FIFO is ready to process the next byte, this function returns I2C_OK.
+ * If in course of polling the INT_I2C assertion is detected, the function
+ * returns I2C_NOK. If timeout happens before any of the above conditions is
+ * met - the function returns I2C_NOK_TOUT;
+
+ * @param i2c: pointer to the appropriate i2c register bank.
+ * @param rx_transfer: set to True if the receive transaction is in progress.
+ * @return: as described above.
+ */
+static unsigned hsi2c_poll_fifo(struct exynos5_hsi2c *i2c, bool rx_transfer)
+{
+ u32 fifo_bit = rx_transfer ? HSI2C_RX_FIFO_EMPTY : HSI2C_TX_FIFO_FULL;
+ int i = HSI2C_TIMEOUT_US;
+
+ while (readl(&i2c->usi_fifo_stat) & fifo_bit) {
+ if (readl(&i2c->usi_int_stat) & HSI2C_INT_I2C_EN) {
+ /*
+ * There is a chance that assertion of
+ * HSI2C_INT_I2C_EN and deassertion of
+ * HSI2C_RX_FIFO_EMPTY happen simultaneously. Let's
+ * give FIFO status priority and check it one more
+ * time before reporting interrupt. The interrupt will
+ * be reported next time this function is called.
+ */
+ if (rx_transfer &&
+ !(readl(&i2c->usi_fifo_stat) & fifo_bit))
+ break;
+ return I2C_NOK;
+ }
+ if (!i--) {
+ debug("%s: FIFO polling timeout!\n", __func__);
+ return I2C_NOK_TOUT;
+ }
+ udelay(1);
+ }
+ return I2C_OK;
+}
+
+/*
+ * Preapre hsi2c transaction, either read or write.
+ *
+ * Set up transfer as described in section 27.5.1.2 'I2C Channel Auto Mode' of
+ * the 5420 UM.
+ *
+ * @param i2c: pointer to the appropriate i2c register bank.
+ * @param chip: slave address on the i2c bus (with read/write bit exlcuded)
+ * @param len: number of bytes expected to be sent or received
+ * @param rx_transfer: set to true for receive transactions
+ * @param: issue_stop: set to true if i2c stop condition should be generated
+ * after this transaction.
+ * @return: I2C_NOK_TOUT in case the bus remained busy for HSI2C_TIMEOUT_US,
+ * I2C_OK otherwise.
+ */
+static int hsi2c_prepare_transaction(struct exynos5_hsi2c *i2c,
+ u8 chip,
+ u16 len,
+ bool rx_transfer,
+ bool issue_stop)
+{
+ u32 conf;
+
+ conf = len | HSI2C_MASTER_RUN;
+
+ if (issue_stop)
+ conf |= HSI2C_STOP_AFTER_TRANS;
+
+ /* Clear to enable Timeout */
+ writel(readl(&i2c->usi_timeout) & ~HSI2C_TIMEOUT_EN, &i2c->usi_timeout);
+
+ /* Set slave address */
+ writel(HSI2C_SLV_ADDR_MAS(chip), &i2c->i2c_addr);
+
+ if (rx_transfer) {
+ /* i2c master, read transaction */
+ writel((HSI2C_RXCHON | HSI2C_FUNC_MODE_I2C | HSI2C_MASTER),
+ &i2c->usi_ctl);
+
+ /* read up to len bytes, stop after transaction is finished */
+ writel(conf | HSI2C_READ_WRITE, &i2c->usi_auto_conf);
+ } else {
+ /* i2c master, write transaction */
+ writel((HSI2C_TXCHON | HSI2C_FUNC_MODE_I2C | HSI2C_MASTER),
+ &i2c->usi_ctl);
+
+ /* write up to len bytes, stop after transaction is finished */
+ writel(conf, &i2c->usi_auto_conf);
+ }
+
+ /* Reset all pending interrupt status bits we care about, if any */
+ writel(HSI2C_INT_I2C_EN, &i2c->usi_int_stat);
+
+ return I2C_OK;
+}
+
+/*
+ * Wait while i2c bus is settling down (mostly stop gets completed).
+ */
+static int hsi2c_wait_while_busy(struct exynos5_hsi2c *i2c)
+{
+ int i = HSI2C_TIMEOUT_US;
+
+ while (readl(&i2c->usi_trans_status) & HSI2C_MASTER_BUSY) {
+ if (!i--) {
+ debug("%s: bus busy\n", __func__);
+ return I2C_NOK_TOUT;
+ }
+ udelay(1);
+ }
+ return I2C_OK;
+}
+
+static int hsi2c_write(struct exynos5_hsi2c *i2c,
+ unsigned char chip,
+ unsigned char addr[],
+ unsigned char alen,
+ unsigned char data[],
+ unsigned short len,
+ bool issue_stop)
+{
+ int i, rv = 0;
+
+ if (!(len + alen)) {
+ /* Writes of zero length not supported in auto mode. */
+ debug("%s: zero length writes not supported\n", __func__);
+ return I2C_NOK;
+ }
+
+ rv = hsi2c_prepare_transaction
+ (i2c, chip, len + alen, false, issue_stop);
+ if (rv != I2C_OK)
+ return rv;
+
+ /* Move address, if any, and the data, if any, into the FIFO. */
+ for (i = 0; i < alen; i++) {
+ rv = hsi2c_poll_fifo(i2c, false);
+ if (rv != I2C_OK) {
+ debug("%s: address write failed\n", __func__);
+ goto write_error;
+ }
+ writel(addr[i], &i2c->usi_txdata);
+ }
+
+ for (i = 0; i < len; i++) {
+ rv = hsi2c_poll_fifo(i2c, false);
+ if (rv != I2C_OK) {
+ debug("%s: data write failed\n", __func__);
+ goto write_error;
+ }
+ writel(data[i], &i2c->usi_txdata);
+ }
+
+ rv = hsi2c_wait_for_trx(i2c);
+
+ write_error:
+ if (issue_stop) {
+ int tmp_ret = hsi2c_wait_while_busy(i2c);
+ if (rv == I2C_OK)
+ rv = tmp_ret;
+ }
+
+ writel(HSI2C_FUNC_MODE_I2C, &i2c->usi_ctl); /* done */
+ return rv;
+}
+
+static int hsi2c_read(struct exynos5_hsi2c *i2c,
+ unsigned char chip,
+ unsigned char addr[],
+ unsigned char alen,
+ unsigned char data[],
+ unsigned short len)
+{
+ int i, rv, tmp_ret;
+ bool drop_data = false;
+
+ if (!len) {
+ /* Reads of zero length not supported in auto mode. */
+ debug("%s: zero length read adjusted\n", __func__);
+ drop_data = true;
+ len = 1;
+ }
+
+ if (alen) {
+ /* Internal register adress needs to be written first. */
+ rv = hsi2c_write(i2c, chip, addr, alen, NULL, 0, false);
+ if (rv != I2C_OK)
+ return rv;
+ }
+
+ rv = hsi2c_prepare_transaction(i2c, chip, len, true, true);
+
+ if (rv != I2C_OK)
+ return rv;
+
+ for (i = 0; i < len; i++) {
+ rv = hsi2c_poll_fifo(i2c, true);
+ if (rv != I2C_OK)
+ goto read_err;
+ if (drop_data)
+ continue;
+ data[i] = readl(&i2c->usi_rxdata);
+ }
+
+ rv = hsi2c_wait_for_trx(i2c);
+
+ read_err:
+ tmp_ret = hsi2c_wait_while_busy(i2c);
+ if (rv == I2C_OK)
+ rv = tmp_ret;
+
+ writel(HSI2C_FUNC_MODE_I2C, &i2c->usi_ctl); /* done */
+ return rv;
+}
+
+static unsigned int s3c24x0_i2c_set_bus_speed(struct i2c_adapter *adap,
+ unsigned int speed)
+{
+ struct s3c24x0_i2c_bus *i2c_bus;
+
+ i2c_bus = get_bus(adap->hwadapnr);
+ if (!i2c_bus)
+ return -1;
+
+ i2c_bus->clock_frequency = speed;
+
+ if (i2c_bus->is_highspeed) {
+ if (hsi2c_get_clk_details(i2c_bus))
+ return -1;
+ hsi2c_ch_init(i2c_bus);
+ } else {
+ i2c_ch_init(i2c_bus->regs, i2c_bus->clock_frequency,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE);
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_EXYNOS5
+static void exynos_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)
+{
+ /* This will override the speed selected in the fdt for that port */
+ debug("i2c_init(speed=%u, slaveaddr=0x%x)\n", speed, slaveaddr);
+ if (i2c_set_bus_speed(speed))
+ printf("i2c_init: failed to init bus %d for speed = %d\n",
+ adap->hwadapnr, speed);
+}
+#endif
+
+/*
+ * cmd_type is 0 for write, 1 for read.
+ *
+ * addr_len can take any value from 0-255, it is only limited
+ * by the char, we could make it larger if needed. If it is
+ * 0 we skip the address write cycle.
+ */
+static int i2c_transfer(struct s3c24x0_i2c *i2c,
+ unsigned char cmd_type,
+ unsigned char chip,
+ unsigned char addr[],
+ unsigned char addr_len,
+ unsigned char data[],
+ unsigned short data_len)
+{
+ int i = 0, result;
+ ulong start_time = get_timer(0);
+
+ if (data == 0 || data_len == 0) {
+ /*Don't support data transfer of no length or to address 0 */
+ debug("i2c_transfer: bad call\n");
+ return I2C_NOK;
+ }
+
+ while (readl(&i2c->iicstat) & I2CSTAT_BSY) {
+ if (get_timer(start_time) > I2C_TIMEOUT_MS)
+ return I2C_NOK_TOUT;
+ }
+
+ writel(readl(&i2c->iiccon) | I2CCON_ACKGEN, &i2c->iiccon);
+
+ /* Get the slave chip address going */
+ writel(chip, &i2c->iicds);
+ if ((cmd_type == I2C_WRITE) || (addr && addr_len))
+ writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP,
+ &i2c->iicstat);
+ else
+ writel(I2C_MODE_MR | I2C_TXRX_ENA | I2C_START_STOP,
+ &i2c->iicstat);
+
+ /* Wait for chip address to transmit. */
+ result = WaitForXfer(i2c);
+ if (result != I2C_OK)
+ goto bailout;
+
+ /* If register address needs to be transmitted - do it now. */
+ if (addr && addr_len) {
+ while ((i < addr_len) && (result == I2C_OK)) {
+ writel(addr[i++], &i2c->iicds);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+ }
+ i = 0;
+ if (result != I2C_OK)
+ goto bailout;
+ }
+
+ switch (cmd_type) {
+ case I2C_WRITE:
+ while ((i < data_len) && (result == I2C_OK)) {
+ writel(data[i++], &i2c->iicds);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+ }
+ break;
+
+ case I2C_READ:
+ if (addr && addr_len) {
+ /*
+ * Register address has been sent, now send slave chip
+ * address again to start the actual read transaction.
+ */
+ writel(chip, &i2c->iicds);
+
+ /* Generate a re-START. */
+ writel(I2C_MODE_MR | I2C_TXRX_ENA | I2C_START_STOP,
+ &i2c->iicstat);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+
+ if (result != I2C_OK)
+ goto bailout;
+ }
+
+ while ((i < data_len) && (result == I2C_OK)) {
+ /* disable ACK for final READ */
+ if (i == data_len - 1)
+ writel(readl(&i2c->iiccon)
+ & ~I2CCON_ACKGEN,
+ &i2c->iiccon);
+ ReadWriteByte(i2c);
+ result = WaitForXfer(i2c);
+ data[i++] = readl(&i2c->iicds);
+ }
+ if (result == I2C_NACK)
+ result = I2C_OK; /* Normal terminated read. */
+ break;
+
+ default:
+ debug("i2c_transfer: bad call\n");
+ result = I2C_NOK;
+ break;
+ }
+
+bailout:
+ /* Send STOP. */
+ writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->iicstat);
+ ReadWriteByte(i2c);
+
+ return result;
+}
+
+static int s3c24x0_i2c_probe(struct i2c_adapter *adap, uchar chip)
+{
+ struct s3c24x0_i2c_bus *i2c_bus;
+ uchar buf[1];
+ int ret;
+
+ i2c_bus = get_bus(adap->hwadapnr);
+ if (!i2c_bus)
+ return -1;
+ buf[0] = 0;
+
+ /*
+ * What is needed is to send the chip address and verify that the
+ * address was <ACK>ed (i.e. there was a chip at that address which
+ * drove the data line low).
+ */
+ if (i2c_bus->is_highspeed) {
+ ret = hsi2c_read(i2c_bus->hsregs,
+ chip, 0, 0, buf, 1);
+ } else {
+ ret = i2c_transfer(i2c_bus->regs,
+ I2C_READ, chip << 1, 0, 0, buf, 1);
+ }
+
+ return ret != I2C_OK;
+}
+
+static int s3c24x0_i2c_read(struct i2c_adapter *adap, uchar chip, uint addr,
+ int alen, uchar *buffer, int len)
+{
+ struct s3c24x0_i2c_bus *i2c_bus;
+ uchar xaddr[4];
+ int ret;
+
+ if (alen > 4) {
+ debug("I2C read: addr len %d not supported\n", alen);
+ return 1;
+ }
+
+ if (alen > 0) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+
+#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW
+ /*
+ * EEPROM chips that implement "address overflow" are ones
+ * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+ * address and the extra bits end up in the "chip address"
+ * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+ * four 256 byte chips.
+ *
+ * Note that we consider the length of the address field to
+ * still be one byte because the extra address bits are
+ * hidden in the chip address.
+ */
+ if (alen > 0)
+ chip |= ((addr >> (alen * 8)) &
+ CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW);
+#endif
+ i2c_bus = get_bus(adap->hwadapnr);
+ if (!i2c_bus)
+ return -1;
+
+ if (i2c_bus->is_highspeed)
+ ret = hsi2c_read(i2c_bus->hsregs, chip, &xaddr[4 - alen],
+ alen, buffer, len);
+ else
+ ret = i2c_transfer(i2c_bus->regs, I2C_READ, chip << 1,
+ &xaddr[4 - alen], alen, buffer, len);
+
+ if (ret) {
+ if (i2c_bus->is_highspeed)
+ exynos5_i2c_reset(i2c_bus);
+ debug("I2c read failed %d\n", ret);
+ return 1;
+ }
+ return 0;
+}
+
+static int s3c24x0_i2c_write(struct i2c_adapter *adap, uchar chip, uint addr,
+ int alen, uchar *buffer, int len)
+{
+ struct s3c24x0_i2c_bus *i2c_bus;
+ uchar xaddr[4];
+ int ret;
+
+ if (alen > 4) {
+ debug("I2C write: addr len %d not supported\n", alen);
+ return 1;
+ }
+
+ if (alen > 0) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+#ifdef CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW
+ /*
+ * EEPROM chips that implement "address overflow" are ones
+ * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+ * address and the extra bits end up in the "chip address"
+ * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+ * four 256 byte chips.
+ *
+ * Note that we consider the length of the address field to
+ * still be one byte because the extra address bits are
+ * hidden in the chip address.
+ */
+ if (alen > 0)
+ chip |= ((addr >> (alen * 8)) &
+ CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW);
+#endif
+ i2c_bus = get_bus(adap->hwadapnr);
+ if (!i2c_bus)
+ return -1;
+
+ if (i2c_bus->is_highspeed)
+ ret = hsi2c_write(i2c_bus->hsregs, chip, &xaddr[4 - alen],
+ alen, buffer, len, true);
+ else
+ ret = i2c_transfer(i2c_bus->regs, I2C_WRITE, chip << 1,
+ &xaddr[4 - alen], alen, buffer, len);
+
+ if (ret != 0) {
+ if (i2c_bus->is_highspeed)
+ exynos5_i2c_reset(i2c_bus);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+#ifdef CONFIG_OF_CONTROL
+static void process_nodes(const void *blob, int node_list[], int count,
+ int is_highspeed)
+{
+ struct s3c24x0_i2c_bus *bus;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ int node = node_list[i];
+
+ if (node <= 0)
+ continue;
+
+ bus = &i2c_bus[i];
+ bus->active = true;
+ bus->is_highspeed = is_highspeed;
+
+ if (is_highspeed)
+ bus->hsregs = (struct exynos5_hsi2c *)
+ fdtdec_get_addr(blob, node, "reg");
+ else
+ bus->regs = (struct s3c24x0_i2c *)
+ fdtdec_get_addr(blob, node, "reg");
+
+ bus->id = pinmux_decode_periph_id(blob, node);
+ bus->clock_frequency = fdtdec_get_int(blob, node,
+ "clock-frequency",
+ CONFIG_SYS_I2C_S3C24X0_SPEED);
+ bus->node = node;
+ bus->bus_num = i;
+ exynos_pinmux_config(bus->id, 0);
+
+ /* Mark position as used */
+ node_list[i] = -1;
+ }
+}
+
+void board_i2c_init(const void *blob)
+{
+ int node_list[CONFIG_MAX_I2C_NUM];
+ int count;
+
+ /* First get the normal i2c ports */
+ count = fdtdec_find_aliases_for_id(blob, "i2c",
+ COMPAT_SAMSUNG_S3C2440_I2C, node_list,
+ CONFIG_MAX_I2C_NUM);
+ process_nodes(blob, node_list, count, 0);
+
+ /* Now look for high speed i2c ports */
+ count = fdtdec_find_aliases_for_id(blob, "i2c",
+ COMPAT_SAMSUNG_EXYNOS5_I2C, node_list,
+ CONFIG_MAX_I2C_NUM);
+ process_nodes(blob, node_list, count, 1);
+
+}
+
+int i2c_get_bus_num_fdt(int node)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(i2c_bus); i++) {
+ if (node == i2c_bus[i].node)
+ return i;
+ }
+
+ debug("%s: Can't find any matched I2C bus\n", __func__);
+ return -1;
+}
+
+int i2c_reset_port_fdt(const void *blob, int node)
+{
+ struct s3c24x0_i2c_bus *i2c_bus;
+ int bus;
+
+ bus = i2c_get_bus_num_fdt(node);
+ if (bus < 0) {
+ debug("could not get bus for node %d\n", node);
+ return -1;
+ }
+
+ i2c_bus = get_bus(bus);
+ if (!i2c_bus) {
+ debug("get_bus() failed for node node %d\n", node);
+ return -1;
+ }
+
+ if (i2c_bus->is_highspeed) {
+ if (hsi2c_get_clk_details(i2c_bus))
+ return -1;
+ hsi2c_ch_init(i2c_bus);
+ } else {
+ i2c_ch_init(i2c_bus->regs, i2c_bus->clock_frequency,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE);
+ }
+
+ return 0;
+}
+#endif
+
+/*
+ * Register s3c24x0 i2c adapters
+ */
+#if defined(CONFIG_EXYNOS5420)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+U_BOOT_I2C_ADAP_COMPLETE(i2c09, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
+U_BOOT_I2C_ADAP_COMPLETE(i2c10, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
+#elif defined(CONFIG_EXYNOS5250)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+U_BOOT_I2C_ADAP_COMPLETE(i2c09, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
+U_BOOT_I2C_ADAP_COMPLETE(s3c10, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
+#elif defined(CONFIG_EXYNOS4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+#else
+U_BOOT_I2C_ADAP_COMPLETE(s3c0, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+ s3c24x0_i2c_read, s3c24x0_i2c_write,
+ s3c24x0_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_S3C24X0_SPEED,
+ CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+#endif
Code Review / kvmfornfv.git / blobdiff