doc: driver-model: Convert of-plat.txt to reST

Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

doc/driver-model/index.rst

@@ -12,3 +12,4 @@ Driver Model
    i2c-howto
    livetree
    migration
+   of-plat

doc/driver-model/of-plat.rst

@@ -1,5 +1,7 @@
-Driver Model Compiled-in Device Tree / Platform Data
+.. SPDX-License-Identifier: GPL-2.0+
-====================================================
+
+Compiled-in Device Tree / Platform Data
+=======================================
 
 
 Introduction
@@ -78,6 +80,8 @@ How it works
 The feature is enabled by CONFIG OF_PLATDATA. This is only available in
 SPL/TPL and should be tested with:
 
+.. code-block:: c
+
     #if CONFIG_IS_ENABLED(OF_PLATDATA)
 
 A new tool called 'dtoc' converts a device tree file either into a set of
@@ -85,6 +89,8 @@ struct declarations, one for each compatible node, and a set of
 U_BOOT_DEVICE() declarations along with the actual platform data for each
 device. As an example, consider this MMC node:
 
+.. code-block:: none
+
     sdmmc: dwmmc@ff0c0000 {
             compatible = "rockchip,rk3288-dw-mshc";
             clock-freq-min-max = <400000 150000000>;
@@ -112,6 +118,8 @@ Some of these properties are dropped by U-Boot under control of the
 CONFIG_OF_SPL_REMOVE_PROPS option. The rest are processed. This will produce
 the following C struct declaration:
 
+.. code-block:: c
+
     struct dtd_rockchip_rk3288_dw_mshc {
             fdt32_t         bus_width;
             bool            cap_mmc_highspeed;
@@ -129,6 +137,8 @@ struct dtd_rockchip_rk3288_dw_mshc {
 
 and the following device declaration:
 
+.. code-block:: c
+
     static struct dtd_rockchip_rk3288_dw_mshc dtv_dwmmc_at_ff0c0000 = {
             .fifo_depth             = 0x100,
             .cap_sd_highspeed       = true,
@@ -147,6 +157,7 @@ static struct dtd_rockchip_rk3288_dw_mshc dtv_dwmmc_at_ff0c0000 = {
             .reg                    = {0xff0c0000, 0x4000},
             .card_detect_delay      = 0xc8,
     };
+
     U_BOOT_DEVICE(dwmmc_at_ff0c0000) = {
             .name           = "rockchip_rk3288_dw_mshc",
             .platdata       = &dtv_dwmmc_at_ff0c0000,
@@ -156,6 +167,8 @@ U_BOOT_DEVICE(dwmmc_at_ff0c0000) = {
 The device is then instantiated at run-time and the platform data can be
 accessed using:
 
+.. code-block:: c
+
     struct udevice *dev;
     struct dtd_rockchip_rk3288_dw_mshc *plat = dev_get_platdata(dev);
 
@@ -173,6 +186,8 @@ each 'compatible' string.
 Where a node has multiple compatible strings, a #define is used to make them
 equivalent, e.g.:
 
+.. code-block:: c
+
     #define dtd_rockchip_rk3299_dw_mshc dtd_rockchip_rk3288_dw_mshc
 
 
@@ -204,6 +219,8 @@ ofdata_to_platdata() method and wrapped with #if.
 
 For example:
 
+.. code-block:: c
+
     #include <dt-structs.h>
 
     struct mmc_platdata {
@@ -317,8 +334,8 @@ Future work
 - Complete the phandle feature
 - Move to using a full Python libfdt module
 
---
+
-Simon Glass <sjg@chromium.org>
+.. Simon Glass <sjg@chromium.org>
-Google, Inc
+.. Google, Inc
-6/6/16
+.. 6/6/16
-Updated Independence Day 2016
+.. Updated Independence Day 2016