From 4dab73d46eb58c142b5d2e7039f12e4e5df357ad Mon Sep 17 00:00:00 2001 From: Guochun Mao Date: Mon, 18 Dec 2017 09:47:35 +0800 Subject: [PATCH 196/224] mtd: mtk-nor: modify functions' name more generally Since more and more Mediatek's SoC can use this driver to control spi-nor flash, functions' name with "mt8173_" is no longer properly. Replacing "mt8173_" with "mtk_" will be more accurate to describe these functions' usable scope. Signed-off-by: Guochun Mao Signed-off-by: Cyrille Pitchen --- drivers/mtd/spi-nor/mtk-quadspi.c | 240 +++++++++++++++++++------------------- 1 file changed, 120 insertions(+), 120 deletions(-) --- a/drivers/mtd/spi-nor/mtk-quadspi.c +++ b/drivers/mtd/spi-nor/mtk-quadspi.c @@ -110,7 +110,7 @@ #define MTK_NOR_PRG_REG(n) (MTK_NOR_PRGDATA0_REG + 4 * (n)) #define MTK_NOR_SHREG(n) (MTK_NOR_SHREG0_REG + 4 * (n)) -struct mt8173_nor { +struct mtk_nor { struct spi_nor nor; struct device *dev; void __iomem *base; /* nor flash base address */ @@ -118,48 +118,48 @@ struct mt8173_nor { struct clk *nor_clk; }; -static void mt8173_nor_set_read_mode(struct mt8173_nor *mt8173_nor) +static void mtk_nor_set_read_mode(struct mtk_nor *mtk_nor) { - struct spi_nor *nor = &mt8173_nor->nor; + struct spi_nor *nor = &mtk_nor->nor; switch (nor->read_proto) { case SNOR_PROTO_1_1_1: - writeb(nor->read_opcode, mt8173_nor->base + + writeb(nor->read_opcode, mtk_nor->base + MTK_NOR_PRGDATA3_REG); - writeb(MTK_NOR_FAST_READ, mt8173_nor->base + + writeb(MTK_NOR_FAST_READ, mtk_nor->base + MTK_NOR_CFG1_REG); break; case SNOR_PROTO_1_1_2: - writeb(nor->read_opcode, mt8173_nor->base + + writeb(nor->read_opcode, mtk_nor->base + MTK_NOR_PRGDATA3_REG); - writeb(MTK_NOR_DUAL_READ_EN, mt8173_nor->base + + writeb(MTK_NOR_DUAL_READ_EN, mtk_nor->base + MTK_NOR_DUAL_REG); break; case SNOR_PROTO_1_1_4: - writeb(nor->read_opcode, mt8173_nor->base + + writeb(nor->read_opcode, mtk_nor->base + MTK_NOR_PRGDATA4_REG); - writeb(MTK_NOR_QUAD_READ_EN, mt8173_nor->base + + writeb(MTK_NOR_QUAD_READ_EN, mtk_nor->base + MTK_NOR_DUAL_REG); break; default: - writeb(MTK_NOR_DUAL_DISABLE, mt8173_nor->base + + writeb(MTK_NOR_DUAL_DISABLE, mtk_nor->base + MTK_NOR_DUAL_REG); break; } } -static int mt8173_nor_execute_cmd(struct mt8173_nor *mt8173_nor, u8 cmdval) +static int mtk_nor_execute_cmd(struct mtk_nor *mtk_nor, u8 cmdval) { int reg; u8 val = cmdval & 0x1f; - writeb(cmdval, mt8173_nor->base + MTK_NOR_CMD_REG); - return readl_poll_timeout(mt8173_nor->base + MTK_NOR_CMD_REG, reg, + writeb(cmdval, mtk_nor->base + MTK_NOR_CMD_REG); + return readl_poll_timeout(mtk_nor->base + MTK_NOR_CMD_REG, reg, !(reg & val), 100, 10000); } -static int mt8173_nor_do_tx_rx(struct mt8173_nor *mt8173_nor, u8 op, - u8 *tx, int txlen, u8 *rx, int rxlen) +static int mtk_nor_do_tx_rx(struct mtk_nor *mtk_nor, u8 op, + u8 *tx, int txlen, u8 *rx, int rxlen) { int len = 1 + txlen + rxlen; int i, ret, idx; @@ -167,26 +167,26 @@ static int mt8173_nor_do_tx_rx(struct mt if (len > MTK_NOR_MAX_SHIFT) return -EINVAL; - writeb(len * 8, mt8173_nor->base + MTK_NOR_CNT_REG); + writeb(len * 8, mtk_nor->base + MTK_NOR_CNT_REG); /* start at PRGDATA5, go down to PRGDATA0 */ idx = MTK_NOR_MAX_RX_TX_SHIFT - 1; /* opcode */ - writeb(op, mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + writeb(op, mtk_nor->base + MTK_NOR_PRG_REG(idx)); idx--; /* program TX data */ for (i = 0; i < txlen; i++, idx--) - writeb(tx[i], mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + writeb(tx[i], mtk_nor->base + MTK_NOR_PRG_REG(idx)); /* clear out rest of TX registers */ while (idx >= 0) { - writeb(0, mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + writeb(0, mtk_nor->base + MTK_NOR_PRG_REG(idx)); idx--; } - ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PRG_CMD); + ret = mtk_nor_execute_cmd(mtk_nor, MTK_NOR_PRG_CMD); if (ret) return ret; @@ -195,20 +195,20 @@ static int mt8173_nor_do_tx_rx(struct mt /* read out RX data */ for (i = 0; i < rxlen; i++, idx--) - rx[i] = readb(mt8173_nor->base + MTK_NOR_SHREG(idx)); + rx[i] = readb(mtk_nor->base + MTK_NOR_SHREG(idx)); return 0; } /* Do a WRSR (Write Status Register) command */ -static int mt8173_nor_wr_sr(struct mt8173_nor *mt8173_nor, u8 sr) +static int mtk_nor_wr_sr(struct mtk_nor *mtk_nor, u8 sr) { - writeb(sr, mt8173_nor->base + MTK_NOR_PRGDATA5_REG); - writeb(8, mt8173_nor->base + MTK_NOR_CNT_REG); - return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WRSR_CMD); + writeb(sr, mtk_nor->base + MTK_NOR_PRGDATA5_REG); + writeb(8, mtk_nor->base + MTK_NOR_CNT_REG); + return mtk_nor_execute_cmd(mtk_nor, MTK_NOR_WRSR_CMD); } -static int mt8173_nor_write_buffer_enable(struct mt8173_nor *mt8173_nor) +static int mtk_nor_write_buffer_enable(struct mtk_nor *mtk_nor) { u8 reg; @@ -216,27 +216,27 @@ static int mt8173_nor_write_buffer_enabl * 0: pre-fetch buffer use for read * 1: pre-fetch buffer use for page program */ - writel(MTK_NOR_WR_BUF_ENABLE, mt8173_nor->base + MTK_NOR_CFG2_REG); - return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg, + writel(MTK_NOR_WR_BUF_ENABLE, mtk_nor->base + MTK_NOR_CFG2_REG); + return readb_poll_timeout(mtk_nor->base + MTK_NOR_CFG2_REG, reg, 0x01 == (reg & 0x01), 100, 10000); } -static int mt8173_nor_write_buffer_disable(struct mt8173_nor *mt8173_nor) +static int mtk_nor_write_buffer_disable(struct mtk_nor *mtk_nor) { u8 reg; - writel(MTK_NOR_WR_BUF_DISABLE, mt8173_nor->base + MTK_NOR_CFG2_REG); - return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg, + writel(MTK_NOR_WR_BUF_DISABLE, mtk_nor->base + MTK_NOR_CFG2_REG); + return readb_poll_timeout(mtk_nor->base + MTK_NOR_CFG2_REG, reg, MTK_NOR_WR_BUF_DISABLE == (reg & 0x1), 100, 10000); } -static void mt8173_nor_set_addr_width(struct mt8173_nor *mt8173_nor) +static void mtk_nor_set_addr_width(struct mtk_nor *mtk_nor) { u8 val; - struct spi_nor *nor = &mt8173_nor->nor; + struct spi_nor *nor = &mtk_nor->nor; - val = readb(mt8173_nor->base + MTK_NOR_DUAL_REG); + val = readb(mtk_nor->base + MTK_NOR_DUAL_REG); switch (nor->addr_width) { case 3: @@ -246,115 +246,115 @@ static void mt8173_nor_set_addr_width(st val |= MTK_NOR_4B_ADDR_EN; break; default: - dev_warn(mt8173_nor->dev, "Unexpected address width %u.\n", + dev_warn(mtk_nor->dev, "Unexpected address width %u.\n", nor->addr_width); break; } - writeb(val, mt8173_nor->base + MTK_NOR_DUAL_REG); + writeb(val, mtk_nor->base + MTK_NOR_DUAL_REG); } -static void mt8173_nor_set_addr(struct mt8173_nor *mt8173_nor, u32 addr) +static void mtk_nor_set_addr(struct mtk_nor *mtk_nor, u32 addr) { int i; - mt8173_nor_set_addr_width(mt8173_nor); + mtk_nor_set_addr_width(mtk_nor); for (i = 0; i < 3; i++) { - writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR0_REG + i * 4); + writeb(addr & 0xff, mtk_nor->base + MTK_NOR_RADR0_REG + i * 4); addr >>= 8; } /* Last register is non-contiguous */ - writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR3_REG); + writeb(addr & 0xff, mtk_nor->base + MTK_NOR_RADR3_REG); } -static ssize_t mt8173_nor_read(struct spi_nor *nor, loff_t from, size_t length, - u_char *buffer) +static ssize_t mtk_nor_read(struct spi_nor *nor, loff_t from, size_t length, + u_char *buffer) { int i, ret; int addr = (int)from; u8 *buf = (u8 *)buffer; - struct mt8173_nor *mt8173_nor = nor->priv; + struct mtk_nor *mtk_nor = nor->priv; /* set mode for fast read mode ,dual mode or quad mode */ - mt8173_nor_set_read_mode(mt8173_nor); - mt8173_nor_set_addr(mt8173_nor, addr); + mtk_nor_set_read_mode(mtk_nor); + mtk_nor_set_addr(mtk_nor, addr); for (i = 0; i < length; i++) { - ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_READ_CMD); + ret = mtk_nor_execute_cmd(mtk_nor, MTK_NOR_PIO_READ_CMD); if (ret < 0) return ret; - buf[i] = readb(mt8173_nor->base + MTK_NOR_RDATA_REG); + buf[i] = readb(mtk_nor->base + MTK_NOR_RDATA_REG); } return length; } -static int mt8173_nor_write_single_byte(struct mt8173_nor *mt8173_nor, - int addr, int length, u8 *data) +static int mtk_nor_write_single_byte(struct mtk_nor *mtk_nor, + int addr, int length, u8 *data) { int i, ret; - mt8173_nor_set_addr(mt8173_nor, addr); + mtk_nor_set_addr(mtk_nor, addr); for (i = 0; i < length; i++) { - writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG); - ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_WR_CMD); + writeb(*data++, mtk_nor->base + MTK_NOR_WDATA_REG); + ret = mtk_nor_execute_cmd(mtk_nor, MTK_NOR_PIO_WR_CMD); if (ret < 0) return ret; } return 0; } -static int mt8173_nor_write_buffer(struct mt8173_nor *mt8173_nor, int addr, - const u8 *buf) +static int mtk_nor_write_buffer(struct mtk_nor *mtk_nor, int addr, + const u8 *buf) { int i, bufidx, data; - mt8173_nor_set_addr(mt8173_nor, addr); + mtk_nor_set_addr(mtk_nor, addr); bufidx = 0; for (i = 0; i < SFLASH_WRBUF_SIZE; i += 4) { data = buf[bufidx + 3]<<24 | buf[bufidx + 2]<<16 | buf[bufidx + 1]<<8 | buf[bufidx]; bufidx += 4; - writel(data, mt8173_nor->base + MTK_NOR_PP_DATA_REG); + writel(data, mtk_nor->base + MTK_NOR_PP_DATA_REG); } - return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WR_CMD); + return mtk_nor_execute_cmd(mtk_nor, MTK_NOR_WR_CMD); } -static ssize_t mt8173_nor_write(struct spi_nor *nor, loff_t to, size_t len, - const u_char *buf) +static ssize_t mtk_nor_write(struct spi_nor *nor, loff_t to, size_t len, + const u_char *buf) { int ret; - struct mt8173_nor *mt8173_nor = nor->priv; + struct mtk_nor *mtk_nor = nor->priv; size_t i; - ret = mt8173_nor_write_buffer_enable(mt8173_nor); + ret = mtk_nor_write_buffer_enable(mtk_nor); if (ret < 0) { - dev_warn(mt8173_nor->dev, "write buffer enable failed!\n"); + dev_warn(mtk_nor->dev, "write buffer enable failed!\n"); return ret; } for (i = 0; i + SFLASH_WRBUF_SIZE <= len; i += SFLASH_WRBUF_SIZE) { - ret = mt8173_nor_write_buffer(mt8173_nor, to, buf); + ret = mtk_nor_write_buffer(mtk_nor, to, buf); if (ret < 0) { - dev_err(mt8173_nor->dev, "write buffer failed!\n"); + dev_err(mtk_nor->dev, "write buffer failed!\n"); return ret; } to += SFLASH_WRBUF_SIZE; buf += SFLASH_WRBUF_SIZE; } - ret = mt8173_nor_write_buffer_disable(mt8173_nor); + ret = mtk_nor_write_buffer_disable(mtk_nor); if (ret < 0) { - dev_warn(mt8173_nor->dev, "write buffer disable failed!\n"); + dev_warn(mtk_nor->dev, "write buffer disable failed!\n"); return ret; } if (i < len) { - ret = mt8173_nor_write_single_byte(mt8173_nor, to, - (int)(len - i), (u8 *)buf); + ret = mtk_nor_write_single_byte(mtk_nor, to, + (int)(len - i), (u8 *)buf); if (ret < 0) { - dev_err(mt8173_nor->dev, "write single byte failed!\n"); + dev_err(mtk_nor->dev, "write single byte failed!\n"); return ret; } } @@ -362,72 +362,72 @@ static ssize_t mt8173_nor_write(struct s return len; } -static int mt8173_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) +static int mtk_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) { int ret; - struct mt8173_nor *mt8173_nor = nor->priv; + struct mtk_nor *mtk_nor = nor->priv; switch (opcode) { case SPINOR_OP_RDSR: - ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_RDSR_CMD); + ret = mtk_nor_execute_cmd(mtk_nor, MTK_NOR_RDSR_CMD); if (ret < 0) return ret; if (len == 1) - *buf = readb(mt8173_nor->base + MTK_NOR_RDSR_REG); + *buf = readb(mtk_nor->base + MTK_NOR_RDSR_REG); else - dev_err(mt8173_nor->dev, "len should be 1 for read status!\n"); + dev_err(mtk_nor->dev, "len should be 1 for read status!\n"); break; default: - ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, NULL, 0, buf, len); + ret = mtk_nor_do_tx_rx(mtk_nor, opcode, NULL, 0, buf, len); break; } return ret; } -static int mt8173_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, - int len) +static int mtk_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, + int len) { int ret; - struct mt8173_nor *mt8173_nor = nor->priv; + struct mtk_nor *mtk_nor = nor->priv; switch (opcode) { case SPINOR_OP_WRSR: /* We only handle 1 byte */ - ret = mt8173_nor_wr_sr(mt8173_nor, *buf); + ret = mtk_nor_wr_sr(mtk_nor, *buf); break; default: - ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, buf, len, NULL, 0); + ret = mtk_nor_do_tx_rx(mtk_nor, opcode, buf, len, NULL, 0); if (ret) - dev_warn(mt8173_nor->dev, "write reg failure!\n"); + dev_warn(mtk_nor->dev, "write reg failure!\n"); break; } return ret; } -static void mt8173_nor_disable_clk(struct mt8173_nor *mt8173_nor) +static void mtk_nor_disable_clk(struct mtk_nor *mtk_nor) { - clk_disable_unprepare(mt8173_nor->spi_clk); - clk_disable_unprepare(mt8173_nor->nor_clk); + clk_disable_unprepare(mtk_nor->spi_clk); + clk_disable_unprepare(mtk_nor->nor_clk); } -static int mt8173_nor_enable_clk(struct mt8173_nor *mt8173_nor) +static int mtk_nor_enable_clk(struct mtk_nor *mtk_nor) { int ret; - ret = clk_prepare_enable(mt8173_nor->spi_clk); + ret = clk_prepare_enable(mtk_nor->spi_clk); if (ret) return ret; - ret = clk_prepare_enable(mt8173_nor->nor_clk); + ret = clk_prepare_enable(mtk_nor->nor_clk); if (ret) { - clk_disable_unprepare(mt8173_nor->spi_clk); + clk_disable_unprepare(mtk_nor->spi_clk); return ret; } return 0; } -static int mtk_nor_init(struct mt8173_nor *mt8173_nor, +static int mtk_nor_init(struct mtk_nor *mtk_nor, struct device_node *flash_node) { const struct spi_nor_hwcaps hwcaps = { @@ -439,18 +439,18 @@ static int mtk_nor_init(struct mt8173_no struct spi_nor *nor; /* initialize controller to accept commands */ - writel(MTK_NOR_ENABLE_SF_CMD, mt8173_nor->base + MTK_NOR_WRPROT_REG); + writel(MTK_NOR_ENABLE_SF_CMD, mtk_nor->base + MTK_NOR_WRPROT_REG); - nor = &mt8173_nor->nor; - nor->dev = mt8173_nor->dev; - nor->priv = mt8173_nor; + nor = &mtk_nor->nor; + nor->dev = mtk_nor->dev; + nor->priv = mtk_nor; spi_nor_set_flash_node(nor, flash_node); /* fill the hooks to spi nor */ - nor->read = mt8173_nor_read; - nor->read_reg = mt8173_nor_read_reg; - nor->write = mt8173_nor_write; - nor->write_reg = mt8173_nor_write_reg; + nor->read = mtk_nor_read; + nor->read_reg = mtk_nor_read_reg; + nor->write = mtk_nor_write; + nor->write_reg = mtk_nor_write_reg; nor->mtd.name = "mtk_nor"; /* initialized with NULL */ ret = spi_nor_scan(nor, NULL, &hwcaps); @@ -465,34 +465,34 @@ static int mtk_nor_drv_probe(struct plat struct device_node *flash_np; struct resource *res; int ret; - struct mt8173_nor *mt8173_nor; + struct mtk_nor *mtk_nor; if (!pdev->dev.of_node) { dev_err(&pdev->dev, "No DT found\n"); return -EINVAL; } - mt8173_nor = devm_kzalloc(&pdev->dev, sizeof(*mt8173_nor), GFP_KERNEL); - if (!mt8173_nor) + mtk_nor = devm_kzalloc(&pdev->dev, sizeof(*mtk_nor), GFP_KERNEL); + if (!mtk_nor) return -ENOMEM; - platform_set_drvdata(pdev, mt8173_nor); + platform_set_drvdata(pdev, mtk_nor); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - mt8173_nor->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(mt8173_nor->base)) - return PTR_ERR(mt8173_nor->base); + mtk_nor->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mtk_nor->base)) + return PTR_ERR(mtk_nor->base); - mt8173_nor->spi_clk = devm_clk_get(&pdev->dev, "spi"); - if (IS_ERR(mt8173_nor->spi_clk)) - return PTR_ERR(mt8173_nor->spi_clk); + mtk_nor->spi_clk = devm_clk_get(&pdev->dev, "spi"); + if (IS_ERR(mtk_nor->spi_clk)) + return PTR_ERR(mtk_nor->spi_clk); - mt8173_nor->nor_clk = devm_clk_get(&pdev->dev, "sf"); - if (IS_ERR(mt8173_nor->nor_clk)) - return PTR_ERR(mt8173_nor->nor_clk); + mtk_nor->nor_clk = devm_clk_get(&pdev->dev, "sf"); + if (IS_ERR(mtk_nor->nor_clk)) + return PTR_ERR(mtk_nor->nor_clk); - mt8173_nor->dev = &pdev->dev; + mtk_nor->dev = &pdev->dev; - ret = mt8173_nor_enable_clk(mt8173_nor); + ret = mtk_nor_enable_clk(mtk_nor); if (ret) return ret; @@ -503,20 +503,20 @@ static int mtk_nor_drv_probe(struct plat ret = -ENODEV; goto nor_free; } - ret = mtk_nor_init(mt8173_nor, flash_np); + ret = mtk_nor_init(mtk_nor, flash_np); nor_free: if (ret) - mt8173_nor_disable_clk(mt8173_nor); + mtk_nor_disable_clk(mtk_nor); return ret; } static int mtk_nor_drv_remove(struct platform_device *pdev) { - struct mt8173_nor *mt8173_nor = platform_get_drvdata(pdev); + struct mtk_nor *mtk_nor = platform_get_drvdata(pdev); - mt8173_nor_disable_clk(mt8173_nor); + mtk_nor_disable_clk(mtk_nor); return 0; } @@ -524,18 +524,18 @@ static int mtk_nor_drv_remove(struct pla #ifdef CONFIG_PM_SLEEP static int mtk_nor_suspend(struct device *dev) { - struct mt8173_nor *mt8173_nor = dev_get_drvdata(dev); + struct mtk_nor *mtk_nor = dev_get_drvdata(dev); - mt8173_nor_disable_clk(mt8173_nor); + mtk_nor_disable_clk(mtk_nor); return 0; } static int mtk_nor_resume(struct device *dev) { - struct mt8173_nor *mt8173_nor = dev_get_drvdata(dev); + struct mtk_nor *mtk_nor = dev_get_drvdata(dev); - return mt8173_nor_enable_clk(mt8173_nor); + return mtk_nor_enable_clk(mtk_nor); } static const struct dev_pm_ops mtk_nor_dev_pm_ops = {