The following patch migrates the usage of debug and printf functions to the relevant logging function as per U-Boot DM guidelines.

Additionally some of the debugging statements have been rearanged for a more meaningfull debug experience.

aarch64-linux-gnu-size reports 229 bytes less when debug is enabled at file level, while is just 5bytes more when disabled.

Signed-off-by: Ibai Erkiaga ibai.erkiaga-elorza@amd.com --- drivers/spi/zynqmp_gqspi.c | 82 +++++++++++++++----------------------- 1 file changed, 33 insertions(+), 49 deletions(-)

diff --git a/drivers/spi/zynqmp_gqspi.c b/drivers/spi/zynqmp_gqspi.c index ec59ef5804..a323994fb2 100644 --- a/drivers/spi/zynqmp_gqspi.c +++ b/drivers/spi/zynqmp_gqspi.c @@ -5,6 +5,8 @@ * Xilinx ZynqMP Generic Quad-SPI(QSPI) controller driver(master mode only) */

+#define LOG_CATEGORY UCLASS_SPI + #include <common.h> #include <cpu_func.h> #include <log.h> @@ -192,8 +194,6 @@ static int zynqmp_qspi_of_to_plat(struct udevice *bus) { struct zynqmp_qspi_plat *plat = dev_get_plat(bus);

- debug("%s\n", __func__); - plat->regs = (struct zynqmp_qspi_regs *)(dev_read_addr(bus) + GQSPI_REG_OFFSET); plat->dma_regs = (struct zynqmp_qspi_dma_regs *) @@ -250,7 +250,7 @@ static u32 zynqmp_qspi_genfifo_mode(u8 buswidth) case 4: return GQSPI_SPI_MODE_QSPI; default: - debug("Unsupported bus width %u\n", buswidth); + log_warning("Unsupported bus width %u\n", buswidth); return GQSPI_SPI_MODE_SPI; } } @@ -262,6 +262,8 @@ static void zynqmp_qspi_fill_gen_fifo(struct zynqmp_qspi_priv *priv, u32 config_reg, ier; int ret = 0;

+ log_content("%s, GFIFO_CMD: 0x%X\n", __func__, gqspi_fifo_reg); + writel(gqspi_fifo_reg, &regs->genfifo);

config_reg = readl(&regs->confr); @@ -278,7 +280,7 @@ static void zynqmp_qspi_fill_gen_fifo(struct zynqmp_qspi_priv *priv, ret = wait_for_bit_le32(&regs->isr, GQSPI_IXR_GFEMTY_MASK, 1, GQSPI_TIMEOUT, 1); if (ret) - printf("%s Timeout\n", __func__); + log_warning("%s, Timeout\n", __func__);

}

@@ -286,6 +288,8 @@ static void zynqmp_qspi_chipselect(struct zynqmp_qspi_priv *priv, int is_on) { u32 gqspi_fifo_reg = 0;

+ log_debug("%s, assert: %d\r\n", __func__, is_on); + if (is_on) { gqspi_fifo_reg = zynqmp_qspi_bus_select(priv); gqspi_fifo_reg |= GQSPI_SPI_MODE_SPI | @@ -295,8 +299,6 @@ static void zynqmp_qspi_chipselect(struct zynqmp_qspi_priv *priv, int is_on) gqspi_fifo_reg |= GQSPI_IMD_DATA_CS_DEASSERT; }

- debug("GFIFO_CMD_CS: 0x%x\n", gqspi_fifo_reg); - zynqmp_qspi_fill_gen_fifo(priv, gqspi_fifo_reg); }

@@ -311,8 +313,8 @@ static void zynqmp_qspi_set_tapdelay(struct udevice *bus, u32 baudrateval) clk_rate = plat->frequency; reqhz = (clk_rate / (GQSPI_BAUD_DIV_SHIFT << baudrateval));

- debug("%s, req_hz:%d, clk_rate:%d, baudrateval:%d\n", - __func__, reqhz, clk_rate, baudrateval); + log_debug("%s, clk_rate:%d, baudrateval:%d, bus_clk: %d\n", + __func__, clk_rate, baudrateval, reqhz);

if (!(IS_ENABLED(CONFIG_ARCH_VERSAL) || IS_ENABLED(CONFIG_ARCH_VERSAL_NET))) { @@ -362,7 +364,8 @@ static int zynqmp_qspi_set_speed(struct udevice *bus, uint speed) u32 confr; u8 baud_rate_val = 0;

- debug("%s\n", __func__); + log_debug("%s, Speed: %d, Max: %d\n", __func__, speed, plat->frequency); + if (speed > plat->frequency) speed = plat->frequency;

@@ -383,9 +386,8 @@ static int zynqmp_qspi_set_speed(struct udevice *bus, uint speed) confr &= ~GQSPI_BAUD_DIV_MASK; confr |= (baud_rate_val << 3); writel(confr, &regs->confr); - zynqmp_qspi_set_tapdelay(bus, baud_rate_val);

- debug("regs=%p, speed=%d\n", priv->regs, plat->speed_hz); + zynqmp_qspi_set_tapdelay(bus, baud_rate_val); }

return 0; @@ -399,8 +401,6 @@ static int zynqmp_qspi_probe(struct udevice *bus) unsigned long clock; int ret;

- debug("%s: bus:%p, priv:%p\n", __func__, bus, priv); - priv->regs = plat->regs; priv->dma_regs = plat->dma_regs; priv->io_mode = plat->io_mode; @@ -416,7 +416,6 @@ static int zynqmp_qspi_probe(struct udevice *bus) dev_err(bus, "failed to get rate\n"); return clock; } - debug("%s: CLK %ld\n", __func__, clock);

ret = clk_enable(&clk); if (ret) { @@ -429,6 +428,8 @@ static int zynqmp_qspi_probe(struct udevice *bus) /* init the zynq spi hw */ zynqmp_qspi_init_hw(priv);

+ log_debug("%s, Rerence clock frequency: %ld\n", __func__, clock); + return 0; }

@@ -438,7 +439,8 @@ static int zynqmp_qspi_set_mode(struct udevice *bus, uint mode) struct zynqmp_qspi_regs *regs = priv->regs; u32 confr;

- debug("%s\n", __func__); + log_debug("%s, 0x%X\n", __func__, mode); + /* Set the SPI Clock phase and polarities */ confr = readl(&regs->confr); confr &= ~(GQSPI_CONFIG_CPHA_MASK | GQSPI_CONFIG_CPOL_MASK); @@ -461,16 +463,11 @@ static int zynqmp_qspi_fill_tx_fifo(struct zynqmp_qspi_priv *priv, u32 size) u32 *buf = (u32 *)priv->tx_buf; u32 len = size;

- debug("TxFIFO: 0x%x, size: 0x%x\n", readl(&regs->isr), - size); - while (size) { ret = wait_for_bit_le32(&regs->isr, GQSPI_IXR_TXNFULL_MASK, 1, GQSPI_TIMEOUT, 1); - if (ret) { - printf("%s: Timeout\n", __func__); - return ret; - } + if (ret) + return log_msg_ret("Timeout\n", ret);

if (size >= 4) { writel(*buf, &regs->txd0r); @@ -501,10 +498,8 @@ static int zynqmp_qspi_fill_tx_fifo(struct zynqmp_qspi_priv *priv, u32 size)

ret = wait_for_bit_le32(&regs->isr, GQSPI_IXR_TXFIFOEMPTY_MASK, 1, GQSPI_TIMEOUT, 1); - if (ret) { - printf("%s: Timeout\n", __func__); - return ret; - } + if (ret) + return log_msg_ret("Timeout\n", ret);

priv->tx_buf += len; return 0; @@ -516,6 +511,9 @@ static void zynqmp_qspi_genfifo_cmd(struct zynqmp_qspi_priv *priv) u32 gen_fifo_cmd; u8 i, dummy_cycles, addr;

+ log_debug("%s, opcode: 0x%0X, addr.nbytes: %d, dummy.mbytes: %d\r\n", + __func__, op->cmd.opcode, op->addr.nbytes, op->dummy.nbytes); + /* Send opcode */ gen_fifo_cmd = zynqmp_qspi_bus_select(priv); gen_fifo_cmd |= zynqmp_qspi_genfifo_mode(op->cmd.buswidth); @@ -532,8 +530,6 @@ static void zynqmp_qspi_genfifo_cmd(struct zynqmp_qspi_priv *priv) gen_fifo_cmd |= GQSPI_GFIFO_TX; gen_fifo_cmd |= addr;

- debug("GFIFO_CMD_Cmd = 0x%x\n", gen_fifo_cmd); - zynqmp_qspi_fill_gen_fifo(priv, gen_fifo_cmd); }

@@ -583,6 +579,8 @@ static int zynqmp_qspi_genfifo_fill_tx(struct zynqmp_qspi_priv *priv) u32 len; int ret = 0;

+ log_debug("%s, length: %d\r\n", __func__, priv->len); + gen_fifo_cmd = zynqmp_qspi_bus_select(priv); gen_fifo_cmd |= zynqmp_qspi_genfifo_mode(priv->op->data.buswidth); gen_fifo_cmd |= GQSPI_GFIFO_TX | GQSPI_GFIFO_DATA_XFR_MASK; @@ -591,8 +589,6 @@ static int zynqmp_qspi_genfifo_fill_tx(struct zynqmp_qspi_priv *priv) len = zynqmp_qspi_calc_exp(priv, &gen_fifo_cmd); zynqmp_qspi_fill_gen_fifo(priv, gen_fifo_cmd);

- debug("GFIFO_CMD_TX:0x%x\n", gen_fifo_cmd); - if (gen_fifo_cmd & GQSPI_GFIFO_EXP_MASK) ret = zynqmp_qspi_fill_tx_fifo(priv, 1 << len); else @@ -608,7 +604,6 @@ static int zynqmp_qspi_start_io(struct zynqmp_qspi_priv *priv, u32 gen_fifo_cmd, u32 *buf) { u32 len; - u32 actuallen = priv->len; u32 config_reg, ier, isr; u32 timeout = GQSPI_TIMEOUT; struct zynqmp_qspi_regs *regs = priv->regs; @@ -623,7 +618,7 @@ static int zynqmp_qspi_start_io(struct zynqmp_qspi_priv *priv, else priv->bytes_to_receive = len; zynqmp_qspi_fill_gen_fifo(priv, gen_fifo_cmd); - debug("GFIFO_CMD_RX:0x%x\n", gen_fifo_cmd); + /* Manual start */ config_reg = readl(&regs->confr); config_reg |= GQSPI_STRT_GEN_FIFO; @@ -652,13 +647,8 @@ static int zynqmp_qspi_start_io(struct zynqmp_qspi_priv *priv, } }

- debug("buf:0x%lx, rxbuf:0x%lx, *buf:0x%x len: 0x%x\n", - (unsigned long)buf, (unsigned long)priv->rx_buf, - *buf, actuallen); - if (!timeout) { - printf("IO timeout: %d\n", readl(&regs->isr)); - return -1; - } + if (!timeout) + return log_msg_retz("Timeout\n", timeout); }

return 0; @@ -695,26 +685,18 @@ static int zynqmp_qspi_start_dma(struct zynqmp_qspi_priv *priv, while (priv->len) { zynqmp_qspi_calc_exp(priv, &gen_fifo_cmd); zynqmp_qspi_fill_gen_fifo(priv, gen_fifo_cmd); - - debug("GFIFO_CMD_RX:0x%x\n", gen_fifo_cmd); }

ret = wait_for_bit_le32(&dma_regs->dmaisr, GQSPI_DMA_DST_I_STS_DONE, 1, GQSPI_TIMEOUT, 1); - if (ret) { - printf("DMA Timeout:0x%x\n", readl(&dma_regs->dmaisr)); - return -ETIMEDOUT; - } + if (ret) + return log_msg_ret("Timeout:\n", ret);

invalidate_dcache_range(addr, addr + size);

writel(GQSPI_DMA_DST_I_STS_DONE, &dma_regs->dmaisr);

- debug("buf:0x%lx, rxbuf:0x%lx, *buf:0x%x len: 0x%x\n", - (unsigned long)buf, (unsigned long)priv->rx_buf, *buf, - actuallen); - if (buf != priv->rx_buf) memcpy(priv->rx_buf, buf, actuallen);

@@ -731,6 +713,8 @@ static int zynqmp_qspi_genfifo_fill_rx(struct zynqmp_qspi_priv *priv) u32 *buf; u32 actuallen = priv->len;

+ log_debug("%s, length: %d\r\n", __func__, priv->len); + gen_fifo_cmd = zynqmp_qspi_bus_select(priv); gen_fifo_cmd |= zynqmp_qspi_genfifo_mode(priv->op->data.buswidth); gen_fifo_cmd |= GQSPI_GFIFO_RX | GQSPI_GFIFO_DATA_XFR_MASK;