diff options
| author | Adam Ford <aford173@gmail.com> | 2017-09-19 20:32:11 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-09-29 14:07:54 -0400 |
| commit | b85781c2a82ff33a65a32b64599416d3c21eeba6 (patch) | |
| tree | d100c250504d2ef1879f574dbd53a10dd4ebdd14 /board/logicpd | |
| parent | a56fd949a54b3c8474502659bbb75bef77bca5ca (diff) | |
ARM: omap3: am3517-evm: Add device tree and DM support
With the device tree ported from Linux 4.13, this enables
Driver Model and Device Tree support for the am3517-evm
Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Derald D. Woods <woods.technical@gmail.com>
Diffstat (limited to 'board/logicpd')
| -rw-r--r-- | board/logicpd/am3517evm/am3517evm.c | 71 |
1 files changed, 47 insertions, 24 deletions
diff --git a/board/logicpd/am3517evm/am3517evm.c b/board/logicpd/am3517evm/am3517evm.c index c18a5a3140..29f136a530 100644 --- a/board/logicpd/am3517evm/am3517evm.c +++ b/board/logicpd/am3517evm/am3517evm.c @@ -12,6 +12,8 @@ */ #include <common.h> +#include <dm.h> +#include <ns16550.h> #include <asm/io.h> #include <asm/omap_musb.h> #include <asm/arch/am35x_def.h> @@ -34,6 +36,22 @@ DECLARE_GLOBAL_DATA_PTR; #define AM3517_IP_SW_RESET 0x48002598 #define CPGMACSS_SW_RST (1 << 1) +#define PHY_GPIO 30 + +/* This is only needed until SPL gets OF support */ +#ifdef CONFIG_SPL_BUILD +static const struct ns16550_platdata am3517_serial = { + .base = OMAP34XX_UART3, + .reg_shift = 2, + .clock = V_NS16550_CLK, + .fcr = UART_FCR_DEFVAL, +}; + +U_BOOT_DEVICE(am3517_uart) = { + "ns16550_serial", + &am3517_serial +}; +#endif /* * Routine: board_init @@ -113,30 +131,35 @@ int misc_init_r(void) am3517_evm_musb_init(); - /* activate PHY reset */ - gpio_direction_output(30, 0); - gpio_set_value(30, 0); - - ctr = 0; - do { - udelay(1000); - ctr++; - } while (ctr < 300); - - /* deactivate PHY reset */ - gpio_set_value(30, 1); - - /* allow the PHY to stabilize and settle down */ - ctr = 0; - do { - udelay(1000); - ctr++; - } while (ctr < 300); - - /* ensure that the module is out of reset */ - reset = readl(AM3517_IP_SW_RESET); - reset &= (~CPGMACSS_SW_RST); - writel(reset,AM3517_IP_SW_RESET); + if (gpio_request(PHY_GPIO, "gpio_30") == 0) { + /* activate PHY reset */ + gpio_direction_output(PHY_GPIO, 0); + gpio_set_value(PHY_GPIO, 0); + + ctr = 0; + do { + udelay(1000); + ctr++; + } while (ctr < 300); + + /* deactivate PHY reset */ + gpio_set_value(PHY_GPIO, 1); + + /* allow the PHY to stabilize and settle down */ + ctr = 0; + do { + udelay(1000); + ctr++; + } while (ctr < 300); + + /* ensure that the module is out of reset */ + reset = readl(AM3517_IP_SW_RESET); + reset &= (~CPGMACSS_SW_RST); + writel(reset, AM3517_IP_SW_RESET); + + /* Free requested GPIO */ + gpio_free(PHY_GPIO); + } return 0; } |