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Subject[PATCH v2 03/11] ARM: shmobile: lager legacy: Add MSIOF support
Date
From: Geert Uytterhoeven <geert+renesas@linux-m68k.org>

Add MSIOF resources, platform data, platform device, pinctrl, and SPI
child device.

- Only MSIOF1 is in use, and thus registered. Its bus contains a single
device (a Renesas R2A11302FT PMIC).
- Platform device numbering is 1-based for compatibility with the BSP,
as QSPI uses zero, so MSIOF1's device name is "spi_r8a7790_msiof.2".

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
---
v2:
- Removed resources for unused MSIOF channels.

arch/arm/mach-shmobile/board-lager.c | 46 +++++++++++++++++++++++++++++-----
1 file changed, 40 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index f0104bfe544e..9d2d3b03af99 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -55,6 +55,7 @@
#include <linux/mtd/mtd.h>
#include <linux/spi/flash.h>
#include <linux/spi/rspi.h>
+#include <linux/spi/sh_msiof.h>
#include <linux/spi/spi.h>
#include <sound/rcar_snd.h>
#include <sound/simple_card.h>
@@ -287,6 +288,17 @@ static const struct platform_device_info ether_info __initconst = {
.dma_mask = DMA_BIT_MASK(32),
};

+/* MSIOF1 */
+static const struct resource sh_msiof1_resources[] __initconst = {
+ DEFINE_RES_MEM(0xe6e10000, 0x0064),
+ DEFINE_RES_IRQ(gic_spi(157)),
+};
+
+static const struct sh_msiof_spi_info sh_msiof_info __initconst = {
+ .rx_fifo_override = 256,
+ .num_chipselect = 1,
+};
+
/* SPI Flash memory (Spansion S25FL512SAGMFIG11 64Mb) */
static struct mtd_partition spi_flash_part[] = {
/* Reserved for user loader program, read-only */
@@ -325,12 +337,19 @@ static const struct rspi_plat_data qspi_pdata __initconst = {

static const struct spi_board_info spi_info[] __initconst = {
{
- .modalias = "m25p80",
- .platform_data = &spi_flash_data,
- .mode = SPI_MODE_0,
- .max_speed_hz = 30000000,
- .bus_num = 0,
- .chip_select = 0,
+ .modalias = "m25p80",
+ .platform_data = &spi_flash_data,
+ .mode = SPI_MODE_0,
+ .max_speed_hz = 30000000,
+ .bus_num = 0,
+ .chip_select = 0,
+ }, {
+ .modalias = "r2a1130x",
+ .max_speed_hz = 6000000,
+ .chip_select = 0,
+ .bus_num = 2,
+ .mode = SPI_MODE_3,
+ .controller_data = (void *)-ENOENT, /* HW controlled CS */
},
};

@@ -703,6 +722,15 @@ static const struct pinctrl_map lager_pinctrl_map[] = {
/* I2C2 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar.2", "pfc-r8a7790",
"i2c2", "i2c2"),
+ /* MSIOF1 */
+ PIN_MAP_MUX_GROUP_DEFAULT("spi_r8a7790_msiof.2", "pfc-r8a7790",
+ "msiof1_clk", "msiof1"),
+ PIN_MAP_MUX_GROUP_DEFAULT("spi_r8a7790_msiof.2", "pfc-r8a7790",
+ "msiof1_sync", "msiof1"),
+ PIN_MAP_MUX_GROUP_DEFAULT("spi_r8a7790_msiof.2", "pfc-r8a7790",
+ "msiof1_rx", "msiof1"),
+ PIN_MAP_MUX_GROUP_DEFAULT("spi_r8a7790_msiof.2", "pfc-r8a7790",
+ "msiof1_tx", "msiof1"),
/* QSPI */
PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7790",
"qspi_ctrl", "qspi"),
@@ -811,6 +839,12 @@ static void __init lager_add_standard_devices(void)
qspi_resources,
ARRAY_SIZE(qspi_resources),
&qspi_pdata, sizeof(qspi_pdata));
+ platform_device_register_resndata(&platform_bus, "spi_r8a7790_msiof",
+ 1 + 1, sh_msiof1_resources,
+ ARRAY_SIZE(sh_msiof1_resources),
+ &sh_msiof_info,
+ sizeof(struct sh_msiof_spi_info));
+
spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));

platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
--
1.7.9.5


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