From: Roger Quadros <rogerq@ti.com>
To: <tony@atomide.com>, <dwmw2@infradead.org>, <computersforpeace@gmail.com>
Cc: <kyungmin.park@samsung.com>, <pekon@ti.com>,
<ezequiel.garcia@free-electrons.com>, <javier@dowhile0.org>,
<nsekhar@ti.com>, <linux-omap@vger.kernel.org>,
<linux-mtd@lists.infradead.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Roger Quadros <rogerq@ti.com>
Subject: [PATCH 22/36] ARM: OMAP2+: gmpc: add gpmc_generic_init()
Date: Wed, 11 Jun 2014 11:56:27 +0300 [thread overview]
Message-ID: <1402477001-31132-23-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1402477001-31132-1-git-send-email-rogerq@ti.com>
This function populates platform data for the specified Chip Select.
It should be called by board init code.
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
arch/arm/mach-omap2/gpmc.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/gpmc.h | 6 ++++
2 files changed, 85 insertions(+)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index ee030cd..d3a64ed 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -30,6 +30,7 @@
#include <linux/of_mtd.h>
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
+#include <linux/slab.h>
#include <linux/platform_data/mtd-nand-omap2.h>
@@ -108,6 +109,8 @@
#define GPMC_NR_WAITPINS 4
+static struct gpmc_omap_platform_data gpmc_pdata;
+
/* Structure to save gpmc cs context */
struct gpmc_cs_config {
u32 config1;
@@ -1510,6 +1513,82 @@ static int __init omap_gpmc_init(void)
omap_postcore_initcall(omap_gpmc_init);
/**
+ * gpmc_generic_init - Initialize platform data for a Chip Select
+ *
+ * @cs chip select number
+ * @is_nand true if device is NAND flash.
+ * @settings GPMC settings
+ * @device_timings device timings for device on this CS
+ * @gpmc_timings GPMC timings
+ * @pdev platform device for the device on this CS
+ * @pdata_size platform data size for the platform device
+ */
+int gpmc_generic_init(int cs, bool is_nand,
+ struct gpmc_settings *settings,
+ struct gpmc_device_timings *device_timings,
+ struct gpmc_timings *gpmc_timings,
+ struct platform_device *pdev, unsigned pdata_size)
+{
+ struct gpmc_settings *gpmc_s = NULL;
+ struct gpmc_device_timings *gpmc_dev_t = NULL;
+ struct gpmc_timings *gpmc_t;
+
+ if (cs >= GPMC_CS_NUM) {
+ pr_err("%s: Invalid cs specified. Max CS = %d\n",
+ __func__, GPMC_CS_NUM);
+ return -EINVAL;
+ }
+
+ if (gpmc_pdata.cs[cs].valid) {
+ pr_err("%s: cs %d already requested, ignoring new request\n",
+ __func__, cs);
+ return -EINVAL;
+ }
+
+ if (settings) {
+ gpmc_s = kmemdup(settings, sizeof(*settings), GFP_KERNEL);
+ if (!gpmc_s)
+ return -ENOMEM;
+
+ gpmc_pdata.cs[cs].settings = gpmc_s;
+ }
+
+ if (device_timings) {
+ gpmc_dev_t = kmemdup(device_timings, sizeof(*device_timings),
+ GFP_KERNEL);
+ if (!gpmc_dev_t)
+ goto dev_t_fail;
+
+ gpmc_pdata.cs[cs].device_timings = gpmc_dev_t;
+ }
+
+ if (gpmc_timings) {
+ gpmc_t = kmemdup(gpmc_timings, sizeof(*gpmc_timings),
+ GFP_KERNEL);
+ if (!gpmc_t)
+ goto gpmc_t_fail;
+
+ gpmc_pdata.cs[cs].gpmc_timings = gpmc_t;
+ }
+
+ gpmc_pdata.cs[cs].is_nand = is_nand;
+ gpmc_pdata.cs[cs].pdev = pdev;
+ gpmc_pdata.cs[cs].pdata_size = pdata_size;
+ gpmc_pdata.cs[cs].valid = true;
+
+ return 0;
+
+gpmc_t_fail:
+ if (device_timings)
+ kfree(gpmc_dev_t);
+dev_t_fail:
+ if (settings)
+ kfree(gpmc_s);
+
+ return -ENOMEM;
+}
+
+/**
* omap_gpmc_retime - Reconfigre GPMC timings for the device
*
* @cs Chip select number
diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h
index 6204913..301bc66 100644
--- a/arch/arm/mach-omap2/gpmc.h
+++ b/arch/arm/mach-omap2/gpmc.h
@@ -77,5 +77,11 @@ extern void omap3_gpmc_save_context(void);
extern void omap3_gpmc_restore_context(void);
extern void gpmc_read_settings_dt(struct device_node *np,
struct gpmc_settings *p);
+int gpmc_generic_init(int cs, bool is_nand,
+ struct gpmc_settings *settings,
+ struct gpmc_device_timings *device_timings,
+ struct gpmc_timings *gpmc_timings,
+ struct platform_device *pdev,
+ unsigned pdata_size);
#endif
--
1.8.3.2
next prev parent reply other threads:[~2014-06-11 9:07 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 8:56 [PATCH 00/36] OMAP: GPMC: Restructure and move OMAP GPMC driver out of mach-omap2 Roger Quadros
2014-06-11 8:56 ` [PATCH 01/36] ARM: OMAP3: hwmod: Fix gpmc memory resource space Roger Quadros
2014-06-13 7:13 ` Tony Lindgren
2014-06-13 7:15 ` Roger Quadros
2014-06-11 8:56 ` [PATCH 02/36] ARM: dts: OMAP2+: Fix GPMC register space size Roger Quadros
2014-06-11 8:56 ` [PATCH 03/36] ARM: OMAP2+: gpmc: Add platform data Roger Quadros
2014-06-11 8:56 ` [PATCH 04/36] ARM: OMAP2+: gpmc: Add gpmc timings and settings to " Roger Quadros
2014-06-11 8:56 ` [PATCH 05/36] mtd: nand: omap: Move IRQ handling from GPMC to NAND driver Roger Quadros
2014-06-13 7:18 ` Tony Lindgren
2014-06-13 7:38 ` Roger Quadros
2014-06-13 7:58 ` Tony Lindgren
2014-06-13 8:13 ` Gupta, Pekon
2014-06-13 8:23 ` Roger Quadros
2014-06-13 10:46 ` Tony Lindgren
2014-06-13 11:42 ` Roger Quadros
2014-06-13 12:08 ` Tony Lindgren
2014-07-01 10:11 ` Roger Quadros
2014-07-01 13:16 ` Tony Lindgren
2014-06-11 8:56 ` [PATCH 06/36] mtd: nand: omap: Move gpmc_update_nand_reg to nand driver Roger Quadros
2014-06-13 7:19 ` Tony Lindgren
2014-06-11 8:56 ` [PATCH 07/36] mtd: nand: omap: Move NAND write protect code from GPMC to NAND driver Roger Quadros
2014-06-13 7:20 ` Tony Lindgren
2014-06-11 8:56 ` [PATCH 08/36] mtd: nand: omap: Copy platform data parameters to omap_nand_info data Roger Quadros
2014-06-11 8:56 ` [PATCH 09/36] mtd: nand: omap: Clean up device tree support Roger Quadros
2014-06-11 8:56 ` [PATCH 10/36] ARM: dts: OMAP2+: Fix NAND device nodes Roger Quadros
2014-06-13 7:21 ` Tony Lindgren
2014-06-11 8:56 ` [PATCH 11/36] mtd: nand: omap: Update DT binding documentation Roger Quadros
2014-06-11 8:56 ` [PATCH 12/36] ARM: dts: omap3-beagle: Add NAND device Roger Quadros
2014-06-11 8:56 ` [PATCH 13/36] ARM: OMAP2+: gpmc.c: sanity check bank-width DT property Roger Quadros
2014-06-11 8:56 ` [PATCH 14/36] ARM: OMAP2+: gpmc: Allow drivers to reconfigure GPMC settings & timings Roger Quadros
2014-06-13 7:25 ` Tony Lindgren
2014-06-13 7:44 ` Roger Quadros
2014-06-13 8:04 ` Tony Lindgren
2014-06-11 8:56 ` [PATCH 15/36] ARM: OMAP2+: gpmc: Allow drivers to query GPMC_CLK period Roger Quadros
2014-06-13 7:26 ` Tony Lindgren
2014-06-13 7:48 ` Roger Quadros
2014-06-11 8:56 ` [PATCH 16/36] mtd: onenand: omap: Remove regulator management code Roger Quadros
2014-06-11 8:56 ` [PATCH 17/36] ARM: OMAP2+: gpmc-onenand: Use Async settings/timings by default Roger Quadros
2014-06-11 8:56 ` [PATCH 18/36] ARM: OMAP2+: gpmc-onenand: Move Synchronous setting code to drivers/ Roger Quadros
2014-06-13 7:55 ` Tony Lindgren
2014-06-13 8:30 ` Roger Quadros
2014-06-11 8:56 ` [PATCH 19/36] mtd: onenand: omap: Use devres managed resources Roger Quadros
2014-06-11 8:56 ` [PATCH 20/36] mtd: onenand: omap: Clean up device tree support Roger Quadros
2014-06-11 8:56 ` [PATCH 21/36] ARM: dts: OMAP2+: Fix OneNAND device nodes Roger Quadros
2014-06-11 8:56 ` Roger Quadros [this message]
2014-06-11 8:56 ` [PATCH 23/36] ARM: OMAP2+: gpmc: use platform data to configure CS space and poplulate device Roger Quadros
2014-06-11 8:56 ` [PATCH 24/36] ARM: OMAP2+: gpmc: add NAND specific setup Roger Quadros
2014-06-11 8:56 ` [PATCH 25/36] ARM: OMAP2+: gpmc: Support multiple Chip Selects per device Roger Quadros
2014-06-11 8:56 ` [PATCH 26/36] ARM: OMAP2+: gpmc-smc91x: Get rid of retime() from omap_smc91x_platform_data Roger Quadros
2014-06-11 8:56 ` [PATCH 27/36] ARM: OMAP2+: usb-tusb6010: Use omap_gpmc_retime() Roger Quadros
2014-06-11 8:56 ` [PATCH 28/36] ARM: OMAP2+: nand: Update gpmc_nand_init() to use generic_gpmc_init() Roger Quadros
2014-06-11 8:56 ` [PATCH 29/36] ARM: OMAP2+: gpmc-smc91x: Use gpmc_generic_init() Roger Quadros
2014-06-11 8:56 ` [PATCH 30/36] ARM: OMAP2+: gpmc-smsc911x: " Roger Quadros
2014-06-11 8:56 ` [PATCH 31/36] ARM: OMAP2: usb-tusb6010: " Roger Quadros
2014-06-11 8:56 ` [PATCH 32/36] ARM: OMAP2+: onenand: " Roger Quadros
2014-06-11 8:56 ` [PATCH 33/36] ARM: OMAP2+: board-flash: Use gpmc_generic_init() for NOR Roger Quadros
2014-06-11 8:56 ` [PATCH 34/36] ARM: OMAP2+: gpmc: Make externally unused functions/defines private Roger Quadros
2014-06-11 8:56 ` [PATCH 35/36] ARM: OMAP2+: gpmc: move GPMC driver into drivers/memory Roger Quadros
2014-06-11 11:45 ` [resend][PATCH " Roger Quadros
2014-06-11 8:56 ` [PATCH 36/36] ARM: OMAP2+: defconfig: Enable TI GPMC driver Roger Quadros
2014-06-11 11:52 ` [PATCH 00/36] OMAP: GPMC: Restructure and move OMAP GPMC driver out of mach-omap2 Javier Martinez Canillas
2014-06-11 11:54 ` Roger Quadros
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