From 26b06940a9bd894c1a21d76b160a3daea0843417 Mon Sep 17 00:00:00 2001 From: Luka Perkov Date: Sun, 29 Jun 2014 23:29:57 +0000 Subject: mvebu: drop 3.10 support Signed-off-by: Luka Perkov SVN-Revision: 41406 --- ...a3xx-Allocate-data-buffer-on-detected-fla.patch | 143 --------------------- 1 file changed, 143 deletions(-) delete mode 100644 target/linux/mvebu/patches-3.10/0130-mtd-nand-pxa3xx-Allocate-data-buffer-on-detected-fla.patch (limited to 'target/linux/mvebu/patches-3.10/0130-mtd-nand-pxa3xx-Allocate-data-buffer-on-detected-fla.patch') diff --git a/target/linux/mvebu/patches-3.10/0130-mtd-nand-pxa3xx-Allocate-data-buffer-on-detected-fla.patch b/target/linux/mvebu/patches-3.10/0130-mtd-nand-pxa3xx-Allocate-data-buffer-on-detected-fla.patch deleted file mode 100644 index 09f022b..0000000 --- a/target/linux/mvebu/patches-3.10/0130-mtd-nand-pxa3xx-Allocate-data-buffer-on-detected-fla.patch +++ /dev/null @@ -1,143 +0,0 @@ -From 71d6267980d7590e38059a784785ca158e361f87 Mon Sep 17 00:00:00 2001 -From: Ezequiel Garcia -Date: Fri, 4 Oct 2013 15:30:38 -0300 -Subject: [PATCH 130/203] mtd: nand: pxa3xx: Allocate data buffer on detected - flash size - -This commit replaces the currently hardcoded buffer size, by a -dynamic detection scheme. First a small 256 bytes buffer is allocated -so the device can be detected (using READID and friends commands). - -After detection, this buffer is released and a new buffer is allocated -to acommodate the page size plus out-of-band size. - -Signed-off-by: Ezequiel Garcia -Tested-by: Daniel Mack -Signed-off-by: Brian Norris ---- - drivers/mtd/nand/pxa3xx_nand.c | 45 ++++++++++++++++++++++++++++-------------- - 1 file changed, 30 insertions(+), 15 deletions(-) - ---- a/drivers/mtd/nand/pxa3xx_nand.c -+++ b/drivers/mtd/nand/pxa3xx_nand.c -@@ -39,6 +39,13 @@ - #define NAND_STOP_DELAY (2 * HZ/50) - #define PAGE_CHUNK_SIZE (2048) - -+/* -+ * Define a buffer size for the initial command that detects the flash device: -+ * STATUS, READID and PARAM. The largest of these is the PARAM command, -+ * needing 256 bytes. -+ */ -+#define INIT_BUFFER_SIZE 256 -+ - /* registers and bit definitions */ - #define NDCR (0x00) /* Control register */ - #define NDTR0CS0 (0x04) /* Timing Parameter 0 for CS0 */ -@@ -164,6 +171,7 @@ struct pxa3xx_nand_info { - - unsigned int buf_start; - unsigned int buf_count; -+ unsigned int buf_size; - - /* DMA information */ - int drcmr_dat; -@@ -911,26 +919,20 @@ static int pxa3xx_nand_detect_config(str - return 0; - } - --/* the maximum possible buffer size for large page with OOB data -- * is: 2048 + 64 = 2112 bytes, allocate a page here for both the -- * data buffer and the DMA descriptor -- */ --#define MAX_BUFF_SIZE PAGE_SIZE -- - #ifdef ARCH_HAS_DMA - static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) - { - struct platform_device *pdev = info->pdev; -- int data_desc_offset = MAX_BUFF_SIZE - sizeof(struct pxa_dma_desc); -+ int data_desc_offset = info->buf_size - sizeof(struct pxa_dma_desc); - - if (use_dma == 0) { -- info->data_buff = kmalloc(MAX_BUFF_SIZE, GFP_KERNEL); -+ info->data_buff = kmalloc(info->buf_size, GFP_KERNEL); - if (info->data_buff == NULL) - return -ENOMEM; - return 0; - } - -- info->data_buff = dma_alloc_coherent(&pdev->dev, MAX_BUFF_SIZE, -+ info->data_buff = dma_alloc_coherent(&pdev->dev, info->buf_size, - &info->data_buff_phys, GFP_KERNEL); - if (info->data_buff == NULL) { - dev_err(&pdev->dev, "failed to allocate dma buffer\n"); -@@ -944,7 +946,7 @@ static int pxa3xx_nand_init_buff(struct - pxa3xx_nand_data_dma_irq, info); - if (info->data_dma_ch < 0) { - dev_err(&pdev->dev, "failed to request data dma\n"); -- dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, -+ dma_free_coherent(&pdev->dev, info->buf_size, - info->data_buff, info->data_buff_phys); - return info->data_dma_ch; - } -@@ -962,7 +964,7 @@ static void pxa3xx_nand_free_buff(struct - struct platform_device *pdev = info->pdev; - if (use_dma) { - pxa_free_dma(info->data_dma_ch); -- dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, -+ dma_free_coherent(&pdev->dev, info->buf_size, - info->data_buff, info->data_buff_phys); - } else { - kfree(info->data_buff); -@@ -971,7 +973,7 @@ static void pxa3xx_nand_free_buff(struct - #else - static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) - { -- info->data_buff = kmalloc(MAX_BUFF_SIZE, GFP_KERNEL); -+ info->data_buff = kmalloc(info->buf_size, GFP_KERNEL); - if (info->data_buff == NULL) - return -ENOMEM; - return 0; -@@ -1085,7 +1087,16 @@ KEEP_CONFIG: - else - host->col_addr_cycles = 1; - -+ /* release the initial buffer */ -+ kfree(info->data_buff); -+ -+ /* allocate the real data + oob buffer */ -+ info->buf_size = mtd->writesize + mtd->oobsize; -+ ret = pxa3xx_nand_init_buff(info); -+ if (ret) -+ return ret; - info->oob_buff = info->data_buff + mtd->writesize; -+ - if ((mtd->size >> chip->page_shift) > 65536) - host->row_addr_cycles = 3; - else -@@ -1191,9 +1202,13 @@ static int alloc_nand_resource(struct pl - } - info->mmio_phys = r->start; - -- ret = pxa3xx_nand_init_buff(info); -- if (ret) -+ /* Allocate a buffer to allow flash detection */ -+ info->buf_size = INIT_BUFFER_SIZE; -+ info->data_buff = kmalloc(info->buf_size, GFP_KERNEL); -+ if (info->data_buff == NULL) { -+ ret = -ENOMEM; - goto fail_disable_clk; -+ } - - /* initialize all interrupts to be disabled */ - disable_int(info, NDSR_MASK); -@@ -1211,7 +1226,7 @@ static int alloc_nand_resource(struct pl - - fail_free_buf: - free_irq(irq, info); -- pxa3xx_nand_free_buff(info); -+ kfree(info->data_buff); - fail_disable_clk: - clk_disable_unprepare(info->clk); - return ret; -- cgit v1.1