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authorGreg Ungerer <gerg@uclinux.org>2011-12-24 12:56:10 +1000
committerGreg Ungerer <gerg@uclinux.org>2012-03-05 09:43:09 +1000
commitfa1fc24662d57170259948314b0759376eb75777 (patch)
tree9a721ae615c33bd34d665ec43946426858319722 /arch/m68k/platform/523x
parentm68knommu: make 532x QSPI platform addressing consistent (diff)
downloadlinux-dev-fa1fc24662d57170259948314b0759376eb75777.tar.xz
linux-dev-fa1fc24662d57170259948314b0759376eb75777.zip
m68knommu: merge common ColdFire QSPI platform setup code
The ColdFire QSPI is common to quite a few ColdFire CPUs. No need to duplicate its platform setup code for every CPU family member that has it. Merge all the setup code into a single shared file. This also results in few platforms no longer needing any local platform setup code. In those cases remove the empty devices array and initcall code as well. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/platform/523x')
-rw-r--r--arch/m68k/platform/523x/config.c157
1 files changed, 3 insertions, 154 deletions
diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c
index bd8a6fd4e993..94e93943cbf8 100644
--- a/arch/m68k/platform/523x/config.c
+++ b/arch/m68k/platform/523x/config.c
@@ -16,158 +16,14 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
-#include <linux/spi/spi.h>
-#include <linux/gpio.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
-#include <asm/mcfqspi.h>
/***************************************************************************/
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
-static struct resource m523x_qspi_resources[] = {
- {
- .start = MCFQSPI_BASE,
- .end = MCFQSPI_BASE + MCFQSPI_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = MCF_IRQ_QSPI,
- .end = MCF_IRQ_QSPI,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static int m523x_cs_setup(struct mcfqspi_cs_control *cs_control)
-{
- int status;
-
- status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS0 failed\n");
- goto fail0;
- }
- status = gpio_direction_output(MCFQSPI_CS0, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n");
- goto fail1;
- }
-
- status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS1 failed\n");
- goto fail1;
- }
- status = gpio_direction_output(MCFQSPI_CS1, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n");
- goto fail2;
- }
-
- status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS2 failed\n");
- goto fail2;
- }
- status = gpio_direction_output(MCFQSPI_CS2, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n");
- goto fail3;
- }
-
- status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3");
- if (status) {
- pr_debug("gpio_request for MCFQSPI_CS3 failed\n");
- goto fail3;
- }
- status = gpio_direction_output(MCFQSPI_CS3, 1);
- if (status) {
- pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n");
- goto fail4;
- }
-
- return 0;
-
-fail4:
- gpio_free(MCFQSPI_CS3);
-fail3:
- gpio_free(MCFQSPI_CS2);
-fail2:
- gpio_free(MCFQSPI_CS1);
-fail1:
- gpio_free(MCFQSPI_CS0);
-fail0:
- return status;
-}
-
-static void m523x_cs_teardown(struct mcfqspi_cs_control *cs_control)
-{
- gpio_free(MCFQSPI_CS3);
- gpio_free(MCFQSPI_CS2);
- gpio_free(MCFQSPI_CS1);
- gpio_free(MCFQSPI_CS0);
-}
-
-static void m523x_cs_select(struct mcfqspi_cs_control *cs_control,
- u8 chip_select, bool cs_high)
-{
- switch (chip_select) {
- case 0:
- gpio_set_value(MCFQSPI_CS0, cs_high);
- break;
- case 1:
- gpio_set_value(MCFQSPI_CS1, cs_high);
- break;
- case 2:
- gpio_set_value(MCFQSPI_CS2, cs_high);
- break;
- case 3:
- gpio_set_value(MCFQSPI_CS3, cs_high);
- break;
- }
-}
-
-static void m523x_cs_deselect(struct mcfqspi_cs_control *cs_control,
- u8 chip_select, bool cs_high)
-{
- switch (chip_select) {
- case 0:
- gpio_set_value(MCFQSPI_CS0, !cs_high);
- break;
- case 1:
- gpio_set_value(MCFQSPI_CS1, !cs_high);
- break;
- case 2:
- gpio_set_value(MCFQSPI_CS2, !cs_high);
- break;
- case 3:
- gpio_set_value(MCFQSPI_CS3, !cs_high);
- break;
- }
-}
-
-static struct mcfqspi_cs_control m523x_cs_control = {
- .setup = m523x_cs_setup,
- .teardown = m523x_cs_teardown,
- .select = m523x_cs_select,
- .deselect = m523x_cs_deselect,
-};
-
-static struct mcfqspi_platform_data m523x_qspi_data = {
- .bus_num = 0,
- .num_chipselect = 4,
- .cs_control = &m523x_cs_control,
-};
-
-static struct platform_device m523x_qspi = {
- .name = "mcfqspi",
- .id = 0,
- .num_resources = ARRAY_SIZE(m523x_qspi_resources),
- .resource = m523x_qspi_resources,
- .dev.platform_data = &m523x_qspi_data,
-};
+#ifdef CONFIG_SPI_COLDFIRE_QSPI
static void __init m523x_qspi_init(void)
{
@@ -180,14 +36,8 @@ static void __init m523x_qspi_init(void)
par &= 0x3f3f;
writew(par, MCFGPIO_PAR_TIMER);
}
-#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */
-static struct platform_device *m523x_devices[] __initdata = {
- &m523x_fec,
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
- &m523x_qspi,
-#endif
-};
+#endif /* CONFIG_SPI_COLDFIRE_QSPI */
/***************************************************************************/
@@ -223,10 +73,9 @@ void __init config_BSP(char *commandp, int size)
static int __init init_BSP(void)
{
-#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE)
+#ifdef CONFIG_SPI_COLDFIRE_QSPI
m523x_qspi_init();
#endif
- platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
return 0;
}